阅读说明：本技术 一种馈能减振器 (Energy feedback shock absorber ) 是由 刘涛 张勇 姜昱祥 牛祯 张锦滢 沈青阳 徐驰 于 2021-07-08 设计创作，主要内容包括：本发明属于汽车悬架系统技术领域,公开了一种馈能减振器,包括减振器缸体,减振器缸体连接有下端盖和第二励磁线圈,下端盖连接有下吊耳和螺旋弹簧,螺旋弹簧的上端连接有上端盖,上端盖滑动穿设有活塞杆,活塞杆连接有上吊耳、活塞体和第一励磁线圈,活塞体连接有伸张阀和流通阀,减振器缸体设有工作腔和储油腔,活塞体滑动设于工作腔的内侧,工作腔连接有叶片式发电机、补偿阀和压缩阀,叶片式发电机连接有整流滤波电路,第一励磁线圈滑动穿设于第二励磁线圈,第一励磁线圈和第二励磁线圈均与整流滤波电路连接；本发明解决了现有技术缺乏一种能够实现减振控制和能量回收于一体且结构简单、便于实施和工作稳定减振器的问题,适用于汽车减振。(The invention belongs to the technical field of automobile suspension systems, and discloses an energy feedback shock absorber which comprises a shock absorber cylinder body, wherein the shock absorber cylinder body is connected with a lower end cover and a second excitation coil, the lower end cover is connected with a lower lifting lug and a spiral spring, the upper end of the spiral spring is connected with an upper end cover, a piston rod is slidably arranged through the upper end cover, the piston rod is connected with an upper lifting lug, a piston body and a first excitation coil, the piston body is connected with an extension valve and a circulation valve, the shock absorber cylinder body is provided with a working cavity and an oil storage cavity, the piston body is slidably arranged on the inner side of the working cavity, the working cavity is connected with a vane type generator, a compensation valve and a compression valve, the vane type generator is connected with a rectification filter circuit, the first excitation coil is slidably arranged through the second excitation coil, and the first excitation coil and the second excitation coil are both connected with the rectification filter circuit; the invention solves the problem that the prior art lacks a shock absorber which can realize the integration of shock absorption control and energy recovery, has simple structure, is convenient to implement and works stably, and is suitable for the shock absorption of automobiles.)

1. An energy feedback shock absorber, comprising: the shock absorber comprises a shock absorber cylinder body (9), wherein the shock absorber cylinder body (9) is connected with a lower end cover (4), the outer side of the shock absorber cylinder body (9) is connected with a spiral spring (6), one end of the spiral spring (6) is connected with the lower end cover (4), the other end of the spiral spring (6) is connected with an upper end cover (3), the upper end cover (3) is provided with a piston rod (5) in a sliding and penetrating mode, the piston rod (5) is connected with a piston body (17), the piston body (17) is connected with an extension valve (12) and a circulation valve (13), the shock absorber cylinder body (9) is provided with a working cavity (10) and an oil storage cavity (11), the piston body (17) is arranged on the inner side of the working cavity (10) in a sliding mode, the working cavity (4) is divided into an upper cavity and a lower cavity by the piston body (17), and the extension valve (12) and the circulation valve (13) communicate the upper cavity with the lower cavity, the working cavity (10) is connected with a blade type generator (14), a compensation valve (15) and a compression valve (16), the blade type generator (14) is connected with a rectifying and filtering circuit through an electric lead, the blade type generator (14) is connected with the input end of the rectifying and filtering circuit, the compensation valve (15) and the compression valve (16) communicating the working chamber (10) with the reserve chamber (11), the piston rod (5) is also fixedly connected with a first excitation coil (7), the shock absorber cylinder body (9) is also fixedly connected with a second excitation coil (8), the spiral directions of the first excitation coil (7) and the second excitation coil (8) are opposite, the first magnet exciting coil (7) is slidably arranged through the second magnet exciting coil (8), the first excitation coil (7) and the second excitation coil (8) are respectively connected with the output end of the rectification filter circuit.

2. The regenerative shock absorber as set forth in claim 1, wherein: the piston rod (5) is connected with an upper lifting lug (1), and the lower end cover (4) is connected with a lower lifting lug (2).

3. The regenerative shock absorber as set forth in claim 1, wherein: the effective number of turns of second excitation coil (8) is greater than the effective number of turns of first excitation coil (7), first excitation coil (7) with the axis coincidence of second excitation coil (8).

Technical Field

The invention relates to the technical field of automobile suspension systems, in particular to an energy feedback shock absorber.

Background

In the automobile structure, the suspension is an indispensable system of the vehicle, and is a general term for all force transmission connecting devices between an automobile frame and an axle. The suspension generally comprises an elastic element, a guide mechanism, a shock absorber and the like. The working principle of the shock absorber is to utilize damping motion to attenuate energy generated in motion, the shock absorber is a key part when an automobile runs, and can quickly alleviate and attenuate vibration brought to the automobile by a road surface and the speed of the automobile, and the comfort, the economy, the safety and the stability of the automobile are improved.

With the rapid development of the automobile industry, the environment and energy resources face serious challenges, and the popularization of the energy-saving technology becomes an important subject of the automobile industry. The proportion of the idle speed of the automobile and the vibration reduction loss of the whole automobile to the total dissipated energy is large and is only second to the heat loss of the engine. If the vibration energy can be well recycled, the vibration of the automobile can be quickly attenuated, and meanwhile, the automobile battery and other power consumption elements are supplied with power, so that the method is undoubtedly an important means for reducing the energy consumption and increasing the vibration reduction performance of the automobile, and the economy and the comfort of the automobile can be greatly improved. However, in the prior art, no shock absorber with simple structure, convenient realization and stable operation can realize the integration of shock absorption control and energy recovery.

Disclosure of Invention

The invention aims to provide an energy feedback shock absorber to solve the problem that the prior art lacks a shock absorber which can realize the integration of shock absorption control and energy recovery, has a simple structure, is convenient to implement and works stably.

In order to achieve the above purpose, the invention provides the following technical scheme:

the basic technical scheme provided by the invention is as follows: an energy-feedback shock absorber comprises a shock absorber cylinder body, wherein the shock absorber cylinder body is connected with a lower end cover, the outer side of the shock absorber cylinder body is connected with a spiral spring, one end of the spiral spring is connected with the lower end cover, the other end of the spiral spring is connected with an upper end cover, a piston rod penetrates through the upper end cover in a sliding mode, the piston rod is connected with a piston body, the piston body is connected with an extension valve and a circulation valve, the shock absorber cylinder body is provided with a working cavity and an oil storage cavity, the piston body is arranged on the inner side of the working cavity in a sliding mode, the working cavity is divided into an upper cavity and a lower cavity by the piston body, the extension valve and the circulation valve are used for communicating the upper cavity with the lower cavity, the working cavity is connected with a vane type generator, a compensation valve and a compression valve, the vane type generator is connected with a rectifying and filtering circuit through an electric lead, and is connected with the input end of the rectifying and filtering circuit, the compensating valve with the compression valve will the working chamber with the oil storage chamber intercommunication, the piston rod is the first excitation coil of fixedly connected with still, the shock absorber cylinder body is the second excitation coil of fixedly connected with still, first excitation coil with the spiral direction of second excitation coil is opposite, first excitation coil slides and wears to locate the second excitation coil, first excitation coil with the second excitation coil respectively with rectifier filter circuit's output is connected.

The principle of the basic technical scheme is as follows: the whole device is connected between a frame and an axle, one end of a piston rod is connected with the vehicle body, the vehicle body vibrates downwards to drive the piston rod to move downwards, the piston rod drives the piston body and a first magnet exciting coil to move downwards, the first magnet exciting coil moves downwards on the inner side of a second magnet exciting coil, a valve is opened, hydraulic oil in a lower chamber flows upwards through the valve, the hydraulic oil drives a blade type generator to generate electric energy when flowing, one part of the generated electric energy is supplied to the first magnet exciting coil and the second magnet exciting coil through a rectifier filter circuit, the first magnet exciting coil and the second magnet exciting coil are opposite in spiral direction, the first magnet exciting coil and the second magnet exciting coil generate heteropolar magnetic fields which are mutually exclusive, the downward movement of the piston rod is prevented, and the other part of the electric energy is stored in a battery element; when the vehicle body moves upwards, the motion process of the vehicle body is opposite to that of the vehicle body, and the principle is the same; the vibration of the vehicle body directly causes the up-and-down movement speed of the piston rod to influence the electric energy generated by the vane generator, so that the strength of the magnetic fields of the first magnet exciting coil and the second magnet exciting coil is changed, and the self-adjustment and the stepless adjustment of the damping force along with the vibration of the vehicle body are realized.

The beneficial effects of the basic technical scheme are as follows:

1. the vibration energy collecting mechanism formed by additionally arranging the blade type generator and the like in the working cavity can effectively recover the vibration energy of the vibration absorber, makes up the defect of high energy consumption of the vibration absorber, and has the advantages of simple structure, convenient realization and low cost;

2. according to the invention, on the basis of the damping characteristic of the traditional damper, the exciting coil is added for damping, so that the defect of damping time lag of the traditional hydraulic damper can be effectively made up. The speed of the flow velocity of the hydraulic oil further influences the size of the electric energy generated by the vane type generator, so that the strength of the magnetic field can be changed, and the aim of stepless adjustment of the damping force can be fulfilled;

3. the vibration reduction device has the advantages of good vibration reduction effect, high vibration energy recovery rate and stable work, and is suitable for popularization and use.

Preferably, the piston rod is connected with an upper lifting lug, and the lower end cover is connected with a lower lifting lug.

Through the arrangement, the upper lifting lug is connected with the vehicle body, the lower lifting lug is connected with the vehicle frame, the shock absorber body is protected, and the connection is convenient.

Preferably, the number of effective turns of the second exciting coil is greater than that of the first exciting coil, and the axis of the first exciting coil coincides with that of the second exciting coil.

Through the arrangement, the effective number of turns of the second excitation coil is larger than that of the first excitation coil, so that the interaction effect between the first excitation coil and the second excitation coil is ensured; the axes of the first magnet exciting coil and the second magnet exciting coil are overlapped, so that the stress of the first magnet exciting coil is uniform, the verticality of the first magnet exciting coil under the stress condition is ensured, the stress of the whole shock absorber is vertical, and the service life of the shock absorber is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a regenerative damper according to the present invention;

FIG. 2 is a schematic view of a working process of the energy feedback shock absorber according to the present invention;

the names of corresponding labels in the drawings are:

the damping device comprises an upper lifting lug 1, a lower lifting lug 2, an upper end cover 3, a lower end cover 4, a piston rod 5, a spiral spring 6, a first excitation coil 7, a second excitation coil 8, a damper cylinder 9, a working chamber 10, an oil storage chamber 11, an extension valve 12, a circulation valve 13, a vane type generator 14, a compensation valve 15, a compression valve 16 and a piston body 17.

Detailed Description

The invention is described in further detail below with reference to the following figures and embodiments:

as shown in fig. 1 and 2, an energy-feedback shock absorber comprises a shock absorber cylinder 9, wherein a lower end cover 4 is fixedly bonded to the lower end of the shock absorber cylinder 9, a lower lifting lug 2 is welded to the lower end of the lower end cover 4, a spiral spring 6 is sleeved on the outer side of the shock absorber cylinder 9, the lower end of the spiral spring 6 is fixedly bonded to the upper end of the lower end cover 4, an upper end cover 3 is fixedly bonded to the upper end of the spiral spring 6, a piston rod 5 is slidably inserted into the upper end cover 3, an upper lifting lug 1 is welded to the upper end of the piston rod 5, a piston body 17 is fixedly bonded to the lower end of the piston rod 5, the piston body 17 is connected with an extension valve 12 and a circulation valve 13, the shock absorber cylinder 9 is provided with a working chamber 10 and an oil storage chamber 11, the piston body 17 is slidably disposed on the inner side of the working chamber 10, the working chamber 10 is divided into an upper chamber and a lower chamber by the piston body 17, the extension valve 12 and the circulation valve 13 communicate the upper chamber with the lower chamber, and the working chamber 10 is connected with a vane generator 14, The compensation valve 15 and the compression valve 16, the blade type generator 14 is connected with a rectifier filter circuit through an electric lead, the blade type generator 14 is connected with the input end of the rectifier filter circuit, the compensation valve 15 and the compression valve 16 communicate the working cavity 10 with the oil storage cavity 11, the piston rod 5 is further fixedly wound with a first excitation coil 7 with a left-handed rotation, the upper end of the shock absorber cylinder body 9 is further fixedly connected with a second excitation coil 8 with a right-handed rotation, the effective number of turns of the second excitation coil 8 is greater than that of the first excitation coil 7, the axis of the first excitation coil 7 is coincident with that of the second excitation coil 8, the first excitation coil 7 is slidably penetrated through the second excitation coil 8, and the first excitation coil 7 and the second excitation coil 8 are respectively connected with the output end of the rectifier filter circuit.

The specific implementation process is as follows:

when the energy feedback shock absorber is used, the upper lifting lug 1 is connected with a vehicle body, the lower lifting lug 2 is connected with a vehicle frame, in the using process, the vehicle body vibrates to drive the piston rod 5 to move up and down, the piston rod 5 drives the piston body 17 to move up and down, the valve is opened along with the up-and-down movement of the piston body 17, hydraulic oil in the working cavity 10 drives the blade type generator 14 to work to generate electric energy, one part of the generated electric energy is supplied to the first excitation coil 7 and the second excitation coil 8 through the rectifying and filtering circuit to generate a magnetic field, the other part of the electric energy is stored in the battery element, the first excitation coil 7 and the second excitation coil 8 generate heteropolar magnetic fields which are mutually exclusive, the movement of the piston rod 5 is prevented, and the purpose of quick adjustment is achieved; the magnitude of the electric energy generated by the blade type generator 14 can be directly influenced by the up-and-down movement speed of the piston rod 5, so that the magnetic field strength of the first magnet exciting coil 7 and the second magnet exciting coil 8 is changed, and the stepless regulation of the magnitude of the vibration damping force is realized.

The above description is only an example of the present invention, and the common general knowledge of the technical solutions or characteristics known in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.