CN108990243B - Mobile terminal - Google Patents

Referring to fig. 1-3, an embodiment of the invention discloses a mobile terminal, which includes a

100, a mobile

200, and a

300.

The mobile

200 and the

300 are both provided on the

100. The mobile

200 is movably disposed on the

100, and during actual operation, the mobile

200 can move relative to the

100 under the driving of the driving mechanism. Typically, movement of the portable

200 can effect switching between its operative and inoperative positions.

The

300 is used for conducting static electricity generated by the mobile

200 to the grounding portion of the mobile terminal, and the

300 plays a role of electrically connecting the grounding portion of the mobile terminal and the mobile

200. The

300 includes a mount 310 and a

320. The mount 310 is fixed to the

100, and the

320 are rollably mounted on the mount 310. The

320, the mounting base 310, and the grounding portion of the mobile terminal are sequentially connected to form an electrostatic conducting path. Static electricity generated by the mobile

200 passes through the

320 and the mounting seat 310 in sequence and then is transmitted to the grounding part of the mobile terminal, thereby realizing electrostatic dispersion. The grounding part refers to a part or an area provided in the mobile terminal and used for grounding other electronic components.

Generally, the

320 and the mount 310 are made of metal so as to perform electrostatic transfer. Of course, the

320 and the mounting base 310 may be made of other conductive materials.

The

320 are rollably disposed on the mount 310. The

320 may be in rolling contact with the portable

200 as the portable

200 moves. That is, during the movement of the mobile

200, the friction force existing between the mobile

200 and the

320 drives the

320 to roll on the mounting seat 310.

In the mobile terminal disclosed in the embodiment of the present invention, the

300 includes the mounting base 310 and the

320 rolling on the mounting base 310, and the

320 and the mobile

200 are in rolling contact, so as to conduct the static electricity generated by the mobile

200 to the grounding portion through the mounting base 310. The movement of the mobile

200 is not affected throughout the electrostatic shedding process. It can be seen that the mobile terminal provided in the embodiment of the present invention can solve the problem that the static electricity of the mobile

200 cannot be eliminated.

Meanwhile, the part in contact with the mobile

200 is the

320, and the contact area between the

320 and the mobile

200 is small, which undoubtedly can reduce the friction between the two, and further can greatly reduce the influence of the

300 on the movement of the mobile

200.

The mobile

200 is usually disposed inside the

100, but may be disposed outside the

100. The driving mechanism for driving the mobile

200 to move may be a hydraulic telescopic member, a lead screw mechanism, a worm gear mechanism, or the like, and the mobile

200 can move relative to the

100 by the driving mechanism.

The mobile

200, such as a camera, a receiver, etc., is usually installed in the

100, and the mobile

200 can be extended from the inner cavity of the

100 to be in an operating position under the driving of the driving mechanism; when the operation is not required, the mobile

200 is driven by the driving mechanism to retract into the

100, and then is located at the non-operation position to be hidden. In this case, the

100 is required to have a through hole, which is usually formed on the frame of the

100 for the mobile

200 to pass through during the moving process.

Of course, the mobile

200, such as a retractable screen, may be mounted outside the

100, and the mobile

200 is moved relative to the

100 by the driving mechanism. In one specific embodiment, the mobile

200 includes at least one of a camera, a receiver, and a retractable screen.

In the embodiment of the present invention, the movable

200 is driven by the driving mechanism to move in a straight line, but may move in other paths as long as the

320 is ensured to be continuously in contact with the movable

200 during the movement.

The mobile terminal comprises a grounding part, so that the grounding of the parts needing grounding on the mobile terminal is realized. In one specific embodiment, the mobile terminal may include a

400, and the

400 is typically a Printed Circuit Board (PCB). The

400 is disposed within the

100, and the

400 includes a ground portion. In this case, the

300 can transmit the static electricity of the portable

200 to the grounding portion.

The

300 can be grounded in various ways, and considering that the components are usually detachably assembled, in an optimal scheme, the grounding portion is provided with the metal

410, the metal

410 can be in conductive contact with the

300, the metal

410 has good elasticity, and the metal

410 is favorable for keeping in an elastic tight state in the assembling process, so that the contact stability can be ensured. Specifically, the

410 may elastically contact the mounting seat 310.

In a preferred embodiment, the number of the

410 is at least two, and at least two

410 may be arranged in a dispersed manner. In this case, if one of the

410 is abnormally contacted, the grounding operation may be performed by the other metal domes 410. The redundant design can better ensure the stability of the ground connection.

In general, the mobile terminal is a plate-shaped structure, and as the mobile terminal is lighter and thinner, in a preferred embodiment, the

300 and the mobile

200 are arranged in parallel in the

100 in a direction perpendicular to the thickness direction of the

100, and the arrangement does not increase the thickness of the mobile terminal.

The mounting seat 310 is used for mounting the

320, the

320 rolls relative to the mounting seat 310, and the

320 and the mounting seat 310 form a hinged fit relation. The mounting base 310 may be a one-piece structure, and may be a split structure.

In a preferred embodiment, the mounting seat 310 may include a supporting

311 and a fixing

312, the supporting

311 is fixedly connected to the

100, the fixing

312 is detachably and fixedly connected to the supporting

311, and both form an accommodating space, the

320 is rollably disposed in the accommodating space, the accommodating space has an opening, and a part of a spherical surface of the

320 extends out of the opening and is in rolling contact with the mobile

200. The mounting seat 310 adopts a split structure, which is beneficial to the mounting of the

320.

Specifically, the fixing

312 and the supporting

311 may be fixedly connected through a connecting member or a connecting structure. In a specific embodiment, the fixing

312 and the supporting

311 may be detachably and fixedly connected by screws.

As described above, the supporting

311 is fixed on the

100, and in order to reduce the assembling operation amount, it is preferable that the supporting

311 is an integral structure with the

100. During the assembly process, after the operator places the

320 on the supporting

311, the fixing

312 is fastened and the fixing

312 is locked by the

313.

In order to ensure the rolling flexibility of the

320 and reduce friction, preferably, the surfaces of the

311 and the fixed

312, which are in contact with the

320, and the surface of the

320 are both polished. The high-gloss surface has the advantage of smaller friction, and can further reduce the friction of the

320 and the mobile

200 in the moving process.

As described above, the contact portion between the

320 and the portable

200 is reduced, and it can be considered that a point on the spherical surface of the

320 is in contact with the portable

200. Based on this, it is preferable that the number of the

320 is one so that the contact area between the

300 and the mobile

200 is minimized.

1. A mobile terminal is characterized by comprising a shell (100), a mobile functional device (200) and a grounding mechanism (300), wherein the mobile functional device (200) and the grounding mechanism (300) are arranged on the shell (100), the mobile functional device (200) is movably arranged on the shell (100), the grounding mechanism (300) comprises a mounting seat (310) fixed on the shell (100) and a ball (320) rollably mounted on the mounting seat (310), the ball (320), the mounting seat (310) and a grounding part of the mobile terminal are sequentially connected and form an electrostatic dredging line, the ball (320) can be in rolling contact with the mobile functional device (200) along with the movement of the mobile functional device (200), the mounting seat (310) comprises a supporting seat (311) and a fixing frame (312), the supporting seat (311) is fixedly connected with the shell (100), the fixing frame (312) and the supporting seat (311) are detachably and fixedly connected and form an accommodating space, the ball (320) is arranged in the accommodating space in a rolling mode, the accommodating space is provided with an opening, part of spherical surface of the ball (320) extends out of the opening and is in rolling contact with the mobile functional device (200), and the number of the balls (320) is one.

2. The mobile terminal of claim 1, comprising a circuit board (400) disposed within the housing (100), wherein the circuit board (400) comprises the grounding portion, and a metal dome (410) is disposed on the grounding portion, wherein the metal dome (410) is in elastic contact with the mounting base (310).

3. The mobile terminal of claim 2, wherein the number of the metal dome (410) is at least two and the metal dome is distributed.

4. The mobile terminal according to claim 1, wherein the ground mechanism (300) and the mobile function device (200) are arranged side by side in the housing (100) in a direction perpendicular to a thickness direction of the housing (100).

5. The mobile terminal of claim 1, wherein the supporting base (311) and the housing (100) are a single-piece structure, and the fixing frame (312) is fixedly connected to the supporting base (311) by a screw (313).

6. The mobile terminal of claim 1, wherein the surfaces of the supporting base (311) and the fixing frame (312) contacting the ball (320) and the surface of the ball (320) are all high-gloss surfaces.

7. The mobile terminal of claim 1, wherein the mobile functional device (200) comprises at least one of a camera, a microphone, and a retractable screen.

8. The mobile terminal according to any of claims 1-7, wherein the mobile terminal is a full-screen smart phone, a tablet computer, or a wearable device.