CN203082102U - Electromagnetic type energy feedback shock absorber based on Halbach permanent magnet array - Google Patents

本实用新型公开了一种基于Halbach永磁阵列的电磁式馈能减震器，它是在软磁材料的带槽外筒中布置多组线圈绕组，由导线引出接入整流电路；在内筒上安装由不同极化方向的环形永磁体构成的Halbach永磁阵列；内筒和外筒之间由弹簧连接。当该减震器安装于行驶中的汽车悬架上时，受车桥或车轮传递的路面振动激励作用，内筒和外筒间产生轴向的相对位移，外筒中的线圈绕组磁链产生变化，产生感应电动势。由于Halbach永磁阵列具有显著的单边加强特性，磁感应强度增强一侧的磁场成正弦分布并且高次谐波小，因而该减震器体积、质量均较小，能量回收性能好。

The utility model discloses an electromagnetic energy-feeding shock absorber based on a Halbach permanent magnet array, which arranges multiple groups of coil windings in a grooved outer cylinder of soft magnetic material, and is led out by wires to be connected to a rectifier circuit; on the inner cylinder A Halbach permanent magnet array composed of annular permanent magnets with different polarization directions is installed; the inner cylinder and the outer cylinder are connected by springs. When the shock absorber is installed on the suspension of a moving car, it is excited by the road vibration transmitted by the axle or wheels, and the relative axial displacement occurs between the inner cylinder and the outer cylinder, and the magnetic linkage of the coil winding in the outer cylinder changes. , generating an induced electromotive force. Since the Halbach permanent magnet array has significant unilateral strengthening characteristics, the magnetic field on the side where the magnetic induction is enhanced is sinusoidally distributed and the high-order harmonics are small, so the shock absorber is small in size and mass, and has good energy recovery performance.

Electromagnetic type energy regenerative vibration damper based on the Halbach permanent magnet array

Technical field

The utility model relates to a kind of electromagnetic type energy regenerative vibration damper based on the Halbach permanent magnet array, the energy that reclaims can be charged to vehicular power-bottle, to the energy supply of vehicle mounted electrical equipment or be used for the Active Vibration Control of suspension, belongs to vibrational energy recovery technology field.

Background technique

At present, traditional automotive suspension vibration damper utilizes the kinetic energy of fluid viscosity damping absorption and dissipation movement in vertical direction, its essence is a kind of parts of energy consumption, and automobile is in the road traveling process even have nearly that 20% to 40% engine output is consumed in this type of traditional shock absorber.Therefore, consider the trend that develops after the energy regenerative vibration damper is from the energy-conserving and environment-protective aspect.Current have some scholars to take up in the research of automobile hanging energy regenerative vibration damper, mainly is divided into two kinds of working methods of hydraulic type and electromagnetic type, yet have the few of practicability.Its reason is a hydraulic type energy regenerative vibration damper cost height, and volume and deadweight are bigger, and the energy of recovery is not easy to utilize once more, and the sluggishness and the sealing problem of hydraulic type energy regenerative vibration damper also have adverse effect to its application simultaneously; Electromagnetic type energy regenerative vibration damper can mainly be divided into electric rotating machine formula and linear electric motor formula again, the drive mechanism that the electric rotating machine formula needs a cover relative complex is converted into motor with the vibration of Vertical direction and rotatablely moves, therefore the mechanical friction loss is bigger, be easy to generate fault, influence the life-span, and the linear electric motor formula electromagnetism energy regenerative vibration damper that has proposed at present is simple and reliable for structure, but has shortcomings such as structure internal magnetic field intensity is not strong again, influences its energy recovery performance.

The model utility content

For the energy loss that overcomes traditional shock absorber and general energy regenerative vibration damper complex structure, shortcoming that the energy recovery performance is not high, the utility model proposes a kind of electromagnetic type energy regenerative vibration damper based on the Halbach permanent magnet array, this vibration damper not only has all advantages of linear electric motor formula vibration damper, can also cancel simultaneously the yoke between the inside configuration permanent magnet, reduce the permanent magnet volume, have the better energy recyclability, simple and reliable for structure.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of electromagnetic type energy regenerative vibration damper based on the Halbach permanent magnet array, comprise Halbach permanent magnet array, coil winding, spring, inner core, urceolus, the inner core end cap of fixedlying connected and the urceolus end cap of fixedlying connected with urceolus with inner core, inner core seals coaxial setting with urceolus and can relatively move, the Halbach permanent magnet array is sheathed to be fixed on the inner core, urceolus comprises inner the coil mounting groove and the urceolus shaft shoulder, and coil winding is arranged in the coil mounting groove; The spring string is outside the Inner tube, between the inner core end cap and the urceolus shaft shoulder; Described Halbach permanent magnet array is made up of the annular permanent magnet of different polarised directions.

Offer perforate on the described urceolus end cap, simultaneously be fixedly connected with guide rod in the urceolus end cap, guide rod inserts in the Inner tube inner orientation groove, and guide rod is offered the guide rod air passageways near an end of urceolus end cap, and is communicated with perforate on the urceolus end cap.

Inner core end cap air passageways is set on the described inner core end cap.

The coil winding separately that is arranged in the external tube groove inserts in the same full-wave rectification bridge, remaining coil winding separately inserts in another full-wave rectification bridge, the other polarity of one of them rectifier bridge is that the other polarity of positive pin and another rectifier bridge is connected series connection for negative pin, two pins of two rectifier bridge remainders are drawn by lead, as the output terminal of whole system induction electromotive force.

Described winding coil is according to 0o phase coil winding, 90o phase coil winding, 180o phase coil winding and the 270o phase coil winding of diverse location for arranging successively.

The beneficial effects of the utility model are, can reclaim the energy that dissipates in the traditional suspension vibration damper in control suspension vibration transfer, supply with vehicle mounted electrical equipment or are used for Active Vibration Control; And advantages such as the magnetic field of other permanent magnet arrays is stronger because the Halbach permanent magnet array is compared, the monolateral reinforcement of magnetic intensity, vibration damper can be done lighter littler, the energy recovery performance is better.

Description of drawings

Fig. 1 is the electromagnetic type energy regenerative vibration damper structural representation of the utility model based on the Halbach permanent magnet array;

Fig. 2 is Halbach permanent magnet array electricity generating principle figure in the utility model;

Fig. 3 is the generating rectification circuit of the utility model based on the electromagnetic type energy regenerative vibration damper of Halbach permanent magnet array.

Among the figure: 1. inner core end cap, 2. inner core end cap air passageways, 3.Halbach permanent magnet array, 4. inner core, 5. spring, 6. seal ring, 7. urceolus, 8. coil winding, 8-1.0o phase coil winding, 8-2.90o the phase coil winding, 8-3.180o phase coil winding, 8-4.270o phase coil winding, 9. urceolus end cap, 10. cushion pad, 11. guide rod air passagewayss, 12. guide rod, 13. 0o and 180o phase place full bridge rectifier, 14. 90o and 270o phase place full bridge rectifier.

Embodiment

Below in conjunction with specific embodiment, the technical solution of the utility model is further set forth.