patents.google.com

CN114885536A - Electronic device - Google Patents

️Tue Aug 09 2022

Disclosure of Invention

The embodiment of the application provides an electronic device with good impact resistance.

An electronic device, comprising:

a housing assembly capable of being expanded or collapsed;

a locking mechanism disposed on the housing assembly; the locking mechanism comprises a metal piece, an acting piece and a locking piece; the acting element exerts a first acting force on the locking element during the unfolding or folding of the shell assembly so as to lock the shell assembly; the metal member is energized to apply a second force to the locking member in a direction opposite to the first force to unlock the housing assembly.

In one embodiment, the metal piece is connected with the locking piece; the metal member contracts when energized to apply the second force to the locking element and extends when de-energized to remove the second force.

In one embodiment, the locking mechanism includes a first bracket having a guide slot, and the metal member is received in the guide slot and extends along the guide slot.

In one embodiment, the guide groove is bent and extended to form an "S" shape.

In one embodiment, the locking mechanism includes a second bracket, the second bracket is provided with a guide slot, and the locking member is accommodated in the guide slot and moves relative to the second bracket along a direction parallel to the direction of the first acting force under the guidance of the guide slot.

In one embodiment, the acting element is accommodated in the guide groove and has elasticity; one end of the acting piece elastically acts on the second bracket, and the other end of the acting piece elastically acts on the locking piece.

In one embodiment, the locking member includes a connecting portion and a locking portion connected to the connecting portion, the connecting portion is connected to the metal member, and the acting member is sleeved on the connecting portion and elastically acts on the locking portion.

In one embodiment, the shell assembly is provided with a plurality of limiting structures arranged in sequence, and the locking piece can be matched with any one of the limiting structures to lock the shell assembly during the unfolding or folding process of the shell assembly.

In one embodiment, the limiting structure is a clamping groove formed in the shell assembly, and the locking piece extends into the clamping groove under the action of the first acting force to lock the shell assembly.

In one embodiment, the acting piece has elasticity, and the elasticity acts on the locking piece; the clamping groove is provided with a limiting surface and a guide surface opposite to the limiting surface; the guide surface can guide the locking piece to be led out from one clamping groove, and the locking piece extends into the other clamping groove under the action of the action piece; the limiting surface can abut against the locking piece to prevent the locking piece from being led out of the clamping groove.

In one embodiment, the electronic device includes a driving mechanism, and the driving mechanism is disposed on the housing assembly and drives the housing assembly to expand or contract.

In one embodiment, the housing assembly comprises a first housing and a second housing, the drive mechanism is disposed on the first housing, the drive mechanism is connectable with the second housing to drive the second housing to move relative to the first housing, and the connection between the drive mechanism and the second housing is broken when the housing assembly is locked.

In one embodiment, the electronic device includes a sensor for sensing a weight loss signal; the sensor is in communication connection with the metal piece and triggers the metal piece to be powered off when a weight loss signal is sensed, and the locking piece locks the shell assembly under the action of the action piece; the sensor is in communication connection with the driving mechanism and triggers the driving mechanism to act when sensing a weight loss signal, so that the driving mechanism is disconnected from the second shell.

In one embodiment, the driving mechanism comprises a push rod and a driving piece capable of driving the push rod to move back and forth; the second shell is provided with a first abutting surface and a second abutting surface opposite to the first abutting surface, and part of the push rod is positioned between the first abutting surface and the second abutting surface and can drive the second shell to move when abutting against the first abutting surface or the second abutting surface and is disconnected with the second shell when not abutting against the first abutting surface and the second abutting surface.

Among the above-mentioned electronic equipment, when the shell subassembly expandes or draws in, electronic equipment's size can change, thereby satisfy different user demands, lock the shell subassembly through locking mechanical system, when electronic equipment receives external impact force, locking mechanical system can bear the effort, make the impact force absorbed by the shell subassembly, avoid the effort direct conduction to other moving parts and produce big relative motion and cause electronic equipment's damage, improve electronic equipment's reliability and stability, promote electronic equipment's shock resistance. Furthermore, the unlocking of the shell assembly is realized by the mode that the metal piece is electrified to drive the locking piece to move, so that the control is convenient, and the use experience and the reliability are improved.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "electronic device" means a device capable of receiving and/or transmitting communication signals including, but not limited to, a device connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

Electronic devices arranged to communicate over a wireless interface may be referred to as "mobile terminals". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

As shown in fig. 1, the

electronic device

10 of the present embodiment includes a

housing assembly

100, and the

housing assembly

100 can provide a supporting and protecting function for components mounted thereon. For example, the

electronic device

10 may further include a circuit board (not shown) and a battery (not shown), both of which may be accommodated inside the

housing assembly

100. The circuit board may integrate a processor, a power management module, a memory unit, a baseband chip, etc. of the

electronic device

10. The

electronic device

10 includes a flexible display (not shown) for displaying, the flexible display is disposed on the

housing assembly

100 and is in communication with the circuit board, and the battery can supply power to the flexible display and the electronic components on the circuit board. Of course, the

electronic device

10 may further include a camera module (not shown) communicatively connected to the circuit board, and the battery can supply power to the camera module. It is understood that the

electronic device

10 according to the embodiment of the present disclosure may be, but is not limited to, an

electronic device

10 such as a mobile phone, a tablet computer, or other portable

electronic devices

10. In the embodiments of the present application, a mobile phone is taken as an example for description.

In the present embodiment, the

case assembly

100 can be unfolded or folded, thereby enabling the size to be changed. The

case assembly

100 takes a collapsed state as shown in fig. 1(a) when collapsed to a minimum size and takes an expanded state as shown in fig. 1(b) when expanded to a maximum size. Referring to fig. 1 and 2, the

electronic device

10 includes a

locking mechanism

300, the

locking mechanism

300 is disposed on the

housing assembly

100, and during the process of unfolding or folding the

housing assembly

100, the

locking mechanism

300 can lock the

housing assembly

100 so that the size of the

housing assembly

100 cannot be changed, and in addition, the

locking mechanism

300 can unlock the

housing assembly

100 so that the size of the

housing assembly

100 can be changed.

Specifically, as shown in fig. 2 to 5, the

locking mechanism

300 includes a

metal member

310, an

acting member

320 and a

locking member

330. The

acting member

320 applies a first force to the

locking member

330 during the folding or unfolding of the

case assembly

100 to be able to lock the

case assembly

100. The

metal member

310 is energized to apply a second force to the

locking member

330 in a direction opposite to the first force to unlock the

housing assembly

100. It will be appreciated that the

metal member

310 and the acting

member

320 can apply an opposite force to the

locking member

330, thereby causing the

locking member

330 to lock or unlock the

housing assembly

100.

In the

electronic device

10, when the

housing assembly

100 is unfolded or folded, the size of the

electronic device

10 is changed, so that different use requirements are met, the

housing assembly

100 is locked by the

locking mechanism

300, when the

electronic device

10 is subjected to external impact, the

locking mechanism

300 can bear the action force, so that the impact force is absorbed by the

housing assembly

100, the damage to the

electronic device

10 caused by large relative movement due to the fact that the action force is directly transmitted to other moving parts is avoided, the reliability and stability of the

electronic device

10 are improved, and the impact resistance of the

electronic device

10 is improved. Further, the unlocking of the

housing assembly

100 is realized by electrifying the

metal member

310 to drive the

locking member

330 to move, which is convenient to control and improves the use experience and reliability.

As shown in fig. 1 to 4, in particular, in the embodiment of the present application, the

case assembly

100 includes a

first case

110 and a

second case

120, and the

second case

120 and the

first case

110 can move relatively, so as to fold or unfold the

case assembly

100. Specifically, in the present embodiment, the

second housing

120 and the

first housing

110 are slidably coupled. In other words, the

second housing

120 can slide relative to the

first housing

110. As shown in fig. 4, the

second shell

120 slides relative to the

first shell

110 along the direction X2, i.e. the movement of the

shell assembly

100 from folded to unfolded, and the second shell slides relative to the

first shell

110 along the direction X1, i.e. the movement of the

shell assembly

100 from unfolded to folded.

Further, the

second housing

120 is slidable relative to the

first housing

110 to a first position (as shown in fig. 1 (a)) and a second position (as shown in fig. 1 (b)). When the

second shell

120 is in the second position, the

shell assembly

100 is in the unfolded state, and the

electronic device

10 has a relatively large external dimension, so that a relatively large display area can be obtained, and the use experience of the

electronic device

10 is improved. When the

second housing

120 is in the first position, the

housing assembly

100 is in the folded state, and the

electronic device

10 has a relatively small external size and is convenient to carry.

It is understood that the

locking mechanism

300 is mounted to the

first housing

110, and the locking

member

330 can move relative to the

first housing

110 and block the

second housing

120 from moving relative to the

first housing

110 under the action of the

metal member

310 and the acting

member

320, thereby achieving the locking of the

housing assembly

100.

In the embodiment of the present application, the

metal member

310 is connected to the locking

member

330. The

metal piece

310 contracts when energized to apply a second force to the locking

member

330 and expands when de-energized to withdraw the second force. The

metal member

310 is powered on and off to contract or extend, so as to apply a force to the locking

member

330 to move the locking

member

330. Specifically, the

metal member

310 has a memory function to increase in temperature to achieve contraction when energized, and to decrease in temperature to achieve elongation when de-energized.

It should be noted that, in other embodiments, the

metal member

310 may also be powered to have magnetism, so as to apply a magnetic attraction force to the locking

member

330, and further drive the locking

member

330 to move to unlock the

shell assembly

100; and the magnetism of the

metal member

310 disappears after the power is cut off, and the locking

member

330 moves by the acting

member

320 to achieve the locking of the

housing assembly

100.

As shown in fig. 2 to 5, further, the

locking mechanism

300 includes a

first bracket

340, the

first bracket

340 defines a

guide slot

341, and the

metal member

310 is received in the

guide slot

341 and extends along the

guide slot

341. It is understood that the

metal member

310 extends in the extending direction of the

guide groove

341 to have a length direction, and the

metal member

310 contracts or elongates in the length direction thereof. The guiding

groove

341 can guide the

metal member

310 during the contraction or elongation of the

metal member

310 to ensure that the direction of the force applied by the

metal member

310 to the locking

member

330 is kept constant. Further, the

first bracket

340 is mounted to the

first case

110.

Specifically, the

metal member

310 is a muscle wire to facilitate traction on the

metal member

310. Further, one end of the

metal member

310 may be fixedly connected to the

first bracket

340, and the other end thereof may extend along the

guide groove

341 and be fixedly connected to the locking

member

330. Furthermore, the two ends of the

metal member

310 are provided with a connecting

buckle

350, and the two ends of the

metal member

310 are respectively and rapidly connected with the

first bracket

340 and the locking

member

330 through the connecting

buckle

350. Furthermore, a position-limiting

post

351 may be formed on the connecting

buckle

350, the

first bracket

340 is provided with a first position-limiting

hole

342, the locking

member

330 is provided with a second position-limiting

hole

334, and the position-limiting

post

351 is inserted into the first position-limiting

hole

342 and the second position-limiting

hole

334 along a direction perpendicular to the expansion direction of the

metal member

310, so as to achieve the quick connection between the

metal member

310 and the

first bracket

340, between the

metal member

310 and the locking

member

330. It should be noted that both ends of the

metal member

310 need to be connected to electronic components such as a power supply and a circuit board to form a loop through which current can flow.

Further, the guiding

groove

341 is bent and extended to form an "S" shape. The arrangement can make the

metal member

310 have a larger length and thus a larger range of expansion and contraction in a limited space, so as to meet the requirement of the movement stroke of the locking

member

330. At the bent portion of the

guide groove

341, the inner wall surface is a smooth arc surface, so that the

metal member

310 can smoothly contract or extend in the

guide groove

341.

In the embodiment of the present application, the

locking mechanism

300 includes a

second bracket

360, the

second bracket

360 has a

guide groove

361, and the locking

member

330 is received in the

guide groove

361 and moves relative to the

second bracket

360 along a direction parallel to a direction of the first force under the guidance of the

guide groove

361. By providing the

second holder

360 to guide the locking

member

330 by the

guide groove

361, the locking

member

330 is linearly moved in a set direction. Further, the

second bracket

360 is mounted to the

first housing

110, and a moving direction of the locking

member

330 with respect to the

first housing

110 is perpendicular to a sliding direction of the

second housing

120 with respect to the

first housing

110.

Specifically, the acting

element

320 is accommodated in the

guide groove

361 and has elasticity, one end of the acting

element

320 elastically acts on the

second bracket

360, and the other end elastically acts on the

locking element

330. It will be appreciated that the acting

member

320 is an elastic member and thus can be deformed, and the locking

member

330 can be moved against the elastic force of the acting

member

320 by the second acting force to unlock the

housing assembly

100, and in this process, the acting

member

320 accumulates elastic potential energy and can drive the locking

member

330 to move after the second acting force is removed, so that the locking

member

330 locks the

housing assembly

100. It can be appreciated that the

guide groove

361 provides a mounting space for the acting

member

320 while guiding the locking

member

330, and provides for the acting

member

320 to elastically act on the locking

member

330. It will be appreciated that the acting

element

320 may be a spring, a leaf spring, a resilient pad, etc.

It is understood that in other embodiments, the acting

element

320 may not be an elastic element, for example, the acting

element

320 may apply a first force to the

locking element

330 by being energized, and in this case, the acting

element

320 and the

locking element

310 need to perform opposite operations of powering on and powering off, that is, when the acting

element

320 applies the first force to the

locking element

330 by being energized, the locking

element

310 needs to be powered off, and when the locking

element

330 applies a second force by being energized to the

locking element

310, the acting

element

320 needs to be powered off.

Specifically, in the present application, the locking

member

330 includes a connecting

portion

331 and a locking

portion

332 connected to the connecting

portion

331, the connecting

portion

331 is connected to the

metal member

310, and the acting

member

320 is sleeved on the connecting

portion

331 and elastically acts on the locking

portion

332. The acting

element

320 is sleeved on the connecting

portion

331, so that the connecting

portion

331 guides the acting

element

320, and further ensures that the acting

element

320 is deformed in a telescopic manner along a predetermined direction, and thus, the problem that the locking

element

330 and the

guide groove

361 are blocked due to the fact that the acting

element

320 is inclined in the telescopic process can be avoided.

Specifically, the locking

member

330 may be configured to be made of metal, so as to have a greater structural strength, so as to withstand a greater impact force after the

housing assembly

100 is locked, thereby prolonging the service life of the

electronic device

10.

In the embodiment of the present application, the

case assembly

100 is sequentially provided with the plurality of position-limiting

structures

130, and the locking

member

330 can be engaged with any one of the plurality of position-limiting

structures

130 to lock the

case assembly

100 during the folding or unfolding of the

case assembly

100. It will be appreciated that the locking

member

330, in cooperation with one of the plurality of

retention structures

130, may lock the

housing assembly

100 in the expanded state, and the locking

member

330, in cooperation with the

other retention structures

130, may lock the

housing assembly

100 in a state other than the expanded state, such as in the collapsed state, or intermediate between the expanded state and the collapsed state, i.e., the

housing assembly

100 may be in the expanded state, or may be in the collapsed state, or may be intermediate between the expanded state and the collapsed state when locked. It will be appreciated that the plurality of

retention structures

130, in cooperation with the locking

member

330, respectively, are capable of allowing the

shell assembly

100 to assume different degrees of deployment, with the degree of deployment of the

shell assembly

100 being maximized in the deployed state. By providing a plurality of limiting

structures

130, a multi-stage locking of the

housing assembly

100 can be achieved, and the multi-stage locking scheme enables the

electronic device

10 to meet various use requirements of users.

Specifically, in the present application, the limiting

structure

130 is a slot opened in the

shell assembly

100, and the locking

member

330 extends into the slot under the action of the first force to lock the

shell assembly

100. In other embodiments, the position-limiting

structure

130 may be a position-limiting post, and the locking

member

330 has a slot for receiving the position-limiting post, so that the locking

member

330 and the position-limiting

structure

130 can be matched to lock the

housing assembly

100.

It is noted that when the

housing assembly

100 is subjected to a force for unfolding or folding the

housing assembly

100, the

housing assembly

100 is locked by the locking

member

330 while the

housing assembly

100 is completely prevented from being changed in size by the locking of the locking

member

330, thereby maintaining a stable state. Or, when the

shell assembly

100 is subjected to the driving force for unfolding or folding the shell assembly, and the driving force does not exceed a certain range, the

shell assembly

100 cannot be subjected to size change under the locking of the locking

member

330, so that the state is kept stable, at this time, the

shell assembly

100 is locked by the locking

member

330, and when the driving force exceeds a certain range, the

shell assembly

100 can break through the locking of the locking

member

330 to perform size change. Therefore, the locking

member

330 can be engaged with any one of the plurality of position-limiting

structures

130 to a certain extent to stabilize the state of the

housing assembly

100 without being changed randomly.

In the embodiment that the acting

element

320 has elasticity and the elasticity acts on the

locking element

330, the slot has the limiting

surface

131 and the guiding

surface

132 opposite to the limiting

surface

131, the guiding

surface

132 can guide the

locking element

330 to be led out from one slot, and the

locking element

330 extends into another slot under the action of the acting

element

320, and the limiting

surface

131 can abut against the locking

element

330 to block the

locking element

330 from being led out from the slot. With this arrangement, when the

shell assembly

100 receives a driving acting force, the

guide surface

132 can act on the locking

member

330, so that the locking

member

330 overcomes the elastic action of the acting

member

320 and is guided out of the slot, thereby unlocking the

shell assembly

100, and along with the change of the size of the

shell assembly

100, the locking

member

330 can extend into the corresponding slot under the elastic action of the acting

member

320, and if the driving acting force received by the

shell assembly

100 is removed, the locking

member

330 can stably lock the

shell assembly

100.

In particular, in this application, the locking

member

330 can be guided out of one of the slots along the

guide surface

132 and into the other slot by the

action member

320 during the movement of the

housing assembly

100 from being collapsed to being deployed. During the movement of the

shell assembly

100 from the unfolding to the folding, the locking

member

330 can abut against the limiting

surface

131 and cannot be led out from the slot. So, when

electronic equipment

10 received external impact force, locking

piece

330 can support with

spacing face

131 counterbalance to play the effect of resisting the impact, from drawing in to expanding and when the size crescent at

shell subassembly

100, the people hand exerts great effort to shell subassembly 100 and can make

locking piece

330 overcome the elastic action of acting

piece

320 and derive the draw-in groove, just so make

guide face

132, locking

piece

330, act as

piece

320 and mutually support in order to play damped effect, and then for the user provides comparatively comfortable expansion and experience. In addition, when the

housing assembly

100 needs to be folded, the locking

member

330 can be moved to disengage from the slot by energizing the

metal member

310, so that the

housing assembly

100 can be unlocked from the folded to the unfolded direction and from the unfolded to the folded direction.

Specifically, the plurality of slots are all opened in the

second housing

120, and the

second housing

120 is provided with the plurality of slots in a zigzag manner. Further, the limiting

surface

131 is a plane parallel to the moving direction of the locking

member

330, the guiding

surface

132 is an inclined surface extending obliquely relative to the limiting

surface

131, and the guiding

surface

132 is smoothly connected with the connecting surface 133 between two adjacent card slots, so as to guide the locking

member

330 to be smoothly led out from the card slot. Further, the cross-sectional area of the mouth of the clamping groove is larger than that of the bottom, so that the clamping groove is trumpet-shaped. Further, the locking

member

330 has an

action surface

333, the

action surface

333 being inclined with respect to the movement direction of the locking

member

330 to be able to interact with the

guide surface

132. In other embodiments, the portion of the locking

member

330 extending into the slot may also be spherical.

Referring to fig. 1 to 6, in particular, in the embodiment of the present application, the

electronic device

10 includes a

driving mechanism

400, and the

driving mechanism

400 is disposed on the

housing assembly

100 and drives the

housing assembly

100 to unfold or fold. It is understood that the

drive mechanism

400 provides power for the expansion or contraction of the

shell assembly

100. In other embodiments, the

drive mechanism

400 may be omitted and the

shell assembly

100 may be expanded or collapsed by a push-pull action of a human hand.

Further, a

driving mechanism

400 is disposed at the

first housing

110, the

driving mechanism

400 can be connected with the

second housing

120 to drive the

second housing

120 to move relative to the

first housing

110, and when the

second housing

120 is locked relative to the

first housing

110, the connection between the

driving mechanism

400 and the

second housing

120 is disconnected. It is understood that the

driving mechanism

400 is connected to the

second housing

120 to apply a driving force to the

second housing

120 to move relative to the

first housing

110 when the

housing assembly

100 is unlocked, and by disconnecting the connection between the

driving mechanism

400 and the

second housing

120 when the

housing assembly

100 is locked, it is avoided that an impact force is transmitted to the

driving mechanism

400 to damage the

driving mechanism

400 when the

housing assembly

100 is dropped, thereby protecting the

driving mechanism

400, and at this time, the impact force is absorbed by the

housing assembly

100 and the

locking mechanism

300 by itself.

Specifically, since the

stopper structure

130 is plural, the

case assembly

100 can be locked in plural states, and at this time, the

driving mechanism

400 is disconnected from the

second case

120 at least when the

case assembly

100 is in the expanded state, and when the

case assembly

100 is locked in an intermediate state between the expanded state and the collapsed state, the

locking mechanism

300 may not be disconnected from the

second case

120, and may also be disconnected from the

second case

120.

Further, the

electronic device

10 includes a

sensor

500 for sensing a weight loss signal, the

sensor

500 is communicatively connected to the

metal member

310 and triggers the

metal member

310 to be powered off when the weight loss signal is sensed, and the locking

member

330 locks the

housing assembly

100 under the action of the

action member

320. The

sensor

500 is in communication with the

driving mechanism

400 and triggers the

driving mechanism

400 to act upon sensing a weight loss signal, so as to disconnect the

driving mechanism

400 from the

second housing

120. When the

housing assembly

100 is dropped during the unfolding or folding process, the

housing assembly

100 is locked by the

control locking member

330 to bear the impact force, and the

driving mechanism

400 is disconnected from the

second housing

120 by the control to prevent the transmission of the impact force to the

driving mechanism

400, thereby protecting the

driving mechanism

400.

It is understood that the

sensor

500 is connected to the

circuit board

600, and the

circuit board

600 is connected to the

metal member

310 and the

driving mechanism

400. When the

sensor

500 senses a weight loss signal, the

sensor

500 sends a signal to the

circuit board

600, the

circuit board

600 sends a signal command to control the

metal member

310 to be powered off, so that the locking

member

330 locks the

housing assembly

100 under the action of the acting

member

320 to bear the impact force, and meanwhile, the

circuit board

600 sends a signal command to enable the

driving mechanism

400 to act to disconnect from the

second housing

120, thereby blocking the transmission of the impact force to the

driving mechanism

400.

Specifically, the

driving mechanism

400 includes a push rod (not shown) and a driving member (not shown) capable of driving the push rod to reciprocate; the

second shell

120 is provided with a first abutting surface (not shown) and a second abutting surface (not shown) opposite to the first abutting surface, and a part of the push rod is located between the first abutting surface and the second abutting surface and can drive the

second shell

120 to move when abutting against the first abutting surface or the second abutting surface and is disconnected with the

second shell

120 when not abutting against the first abutting surface and the second abutting surface. It can be understood that the push rod moves relative to the

first shell

110 under the driving action of the driving element, and pushes the

second shell

120 to move relative to the

first shell

110 when abutting against the first abutting surface, so that the

shell assembly

100 gradually increases from the folded to the unfolded size. The push rod moves relative to the

first shell

110 under the reverse driving action of the driving member, and pushes the

second shell

120 to move relative to the

first shell

110 when abutting against the second abutting surface, so that the

shell assembly

100 is gradually reduced from the unfolded state to the folded state. In the process of unfolding or folding the

housing assembly

100, the push rod can only abut against one of the first abutting surface and the second abutting surface, so that the push rod can have an idle stroke between the first abutting surface and the second abutting surface, that is, in the idle stroke range, the push rod does not contact with any one of the first abutting surface and the second abutting surface, thereby disconnecting the connection between the

driving mechanism

400 and the

second housing

120.

Specifically, the driving part comprises a servo motor, a screw rod and a nut, the screw rod is connected with an output shaft of the servo motor and driven by the servo motor to rotate, and the nut is arranged on the screw rod and moves linearly along with the rotation of the screw rod. The push rod is connected to the nut to move linearly with the nut. The change of the motion direction of the push rod can be realized through the positive rotation and the overturn of the servo motor. Therefore, in the process that the push rod abuts against one of the first abutting surface and the second abutting surface and drives the

second shell

120 to move relative to the

first shell

110, the rotation direction of the servo motor is changed, so that the push rod moves reversely, and the push rod is not contacted with the first abutting surface and the second abutting surface. In other embodiments, the screw rod and the nut can be replaced by a gear and a rack engaged with the gear, the gear is driven to rotate by the servo motor, the rack is further driven to linearly move, and the push rod is driven to move by the rack.

As shown in fig. 2, in the present application, the

locking mechanism

300 is two, and the two locking

mechanisms

300 are engaged with each other to achieve stable locking of the housing assembly. As shown in fig. 1, if the

case assembly

100 is configured to be unfolded or folded in the width direction of the

electronic device

10, two locking

mechanisms

300 are disposed at intervals in the length direction of the

electronic device

10 to lock the

case assembly

100 from two opposite sides of the

case assembly

100. In other embodiments, the number of locking

mechanisms

300 may be any other number.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.