Air spring with dynamic power generation function

Abstract

The air spring with the dynamic power generation function comprises an upper cover, a bearing air bag and a base, the bearing air bag is arranged between the upper cover and the base, and the air spring further comprises a power generation assembly; the power generation assembly comprises a linear power generator, the linear power generator is located in the bearing air bag and vertically arranged, one end of the linear power generator is arranged on the upper cover, and the other end of the linear power generator is arranged on the base; the moving direction of the linear generator is the same as the damping direction of the bearing air bag. The compact design of the structure of the air spring with the dynamic power generation function is achieved, and the overall size is reduced.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and particularly to an air spring with a dynamic power generation function. Background Art

[0002] Automobiles are commonly used means of transportation in industrial production and are widely used for transporting goods. During the process of transporting goods, in order to reduce vibration, shock absorbers are usually configured on automobiles. Using airbags as shock absorbers has a better shock absorption effect and is widely promoted and used. Since the automobile will generate frequent vibrations during operation, the airbag will be correspondingly compressed and stretched. In order to make full use of the vibration energy for power generation, Chinese Patent Publication Nos. CN108590992A, CN106080075A, and CN106114112A respectively disclose corresponding technologies for generating electricity using vibrations. However, the conventional methods of generating electricity using vibrations in automobiles require the configuration of structures such as motors and generators, which occupy a large amount of space. In view of this, how to design a technology with a compact structure is the technical problem to be solved by this application. Summary of the Invention

[0003] The technical problem to be solved by this application is: to provide an air spring with a dynamic power generation function, realize the compact design of the air spring with a dynamic power generation function, and reduce the overall volume.

[0004] The technical solution provided by this application is an air spring with a dynamic power generation function, including: an upper cover, a load-bearing airbag, and a base. The load-bearing airbag is arranged between the upper cover and the base, and further includes a power generation assembly;

[0005] The power generation assembly includes a linear generator, the linear generator is vertically arranged inside the load-bearing airbag, one end of the linear generator is arranged on the upper cover, and the other end of the linear generator is arranged on the base; the movement direction of the linear generator is the same as the shock absorption direction of the load-bearing airbag.

[0006] Further, the linear generator can swing between the upper cover and the base.

[0007] Further, the power generation assembly further includes a first elastic support member and a second elastic support member. The first elastic support member is arranged at one end of the linear generator, and the second elastic support member is arranged at the other end of the linear generator.

[0008] Further, the first elastic support member is arranged on the upper cover, and the second elastic support member is arranged on the base;

[0009] Alternatively, the second elastic support member is disposed on the upper cover, and the first elastic support member is disposed on the base.

[0010] Furthermore, the first elastic support member is a first rubber block; alternatively, the first elastic support member is a first spring.

[0011] Furthermore, the second elastic support member is a second rubber block; alternatively, the second elastic support member is a second spring.

[0012] Furthermore, an installation slot is further disposed on the base;

[0013] The first elastic support member is disposed at the bottom of the installation slot, and the linear generator is inserted into the installation slot.

[0014] Furthermore, the installation slot has a flared structure.

[0015] Furthermore, a first elastic stop member is further disposed on the upper cover;

[0016] And / or, a second elastic stop member is disposed on the base.

[0017] Furthermore, a wire passing hole is disposed on the upper cover or the base, and the power transmission cable of the linear generator is hermetically inserted into the wire passing hole and extends to the outside of the air spring with dynamic power generation function.

[0018] Compared with the prior art, the advantages and positive effects of the present application are as follows: By adding a power generation component, the linear generator of the power generation component is disposed between the upper cover and the base and is located inside the load-bearing airbag. When the load-bearing airbag undergoes a telescopic movement, the upper cover and the base move relative to each other, so that the stator and the rotor of the linear generator generate relative movement inside the load-bearing airbag to perform a power generation operation, thereby realizing the use of the vibration and bump generated during the operation of the vehicle to assist in power generation. Moreover, since the linear generator is located inside the load-bearing airbag, the internal space of the load-bearing airbag is fully utilized to install the linear generator, making the structure of the air spring with dynamic power generation function compact, and thus reducing the overall volume. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a sectional view of one of the embodiments of the air spring with dynamic power generation function of the present application;

[0021] Figure 2 This is the second cross-sectional view of the air spring embodiment with dynamic power generation function in the present application;

[0022] Figure 3 This is the third cross-sectional view of the air spring embodiment with dynamic power generation function in the present application;

[0023] Figure 4 is Figure 1 the cross-sectional view of the linear generator. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0025] As Figures 1 - 3 shown, this embodiment provides an air spring with dynamic power generation function, including: an upper cover 1, a load-bearing airbag 2 and a base 3. The load-bearing airbag 2 is arranged between the upper cover 1 and the base 3, and further includes a power generation assembly. The power generation assembly is arranged between the upper cover 1 and the base 3 and is located inside the load-bearing airbag 2 to enable a compact overall structure design.

[0026] The power generation assembly includes a linear generator 4. The linear generator 4 is located inside the load-bearing airbag 2 and is arranged vertically. One end of the linear generator 4 is arranged on the upper cover 1, and the other end of the linear generator 4 is arranged on the base 3; the moving direction of the linear generator 4 is the same as the shock-absorbing direction of the load-bearing airbag 2.

[0027] Specifically, during the driving of the vehicle, due to the road bumps, the load-bearing airbag 2 expands and contracts frequently, causing relative movement between the upper cover 1 and the base 3. In order to utilize the bump vibration of the vehicle for power generation, a linear generator 4 is arranged inside the load-bearing airbag 2, and the linear generator 4 is arranged vertically as a whole to ensure that the moving direction of the mover in the linear generator 4 is basically consistent with the expansion and contraction direction of the load-bearing airbag 2.

[0028] By adding a power generation component, the linear generator 4 of the power generation component is arranged between the upper cover 1 and the base 3 and is located inside the load-bearing airbag 2. When the load-bearing airbag 2 undergoes a telescopic action, the upper cover 1 and the base 3 move relative to each other, so that the stator and the rotor of the linear generator 4 generate relative movement inside the load-bearing airbag 2 to perform power generation operations, thereby realizing the use of the vibration and bumps generated during the operation of the vehicle to assist in power generation. Moreover, since the linear generator 4 is located inside the load-bearing airbag 2, the internal space of the load-bearing airbag 2 is fully utilized to install the linear generator 4, making the structure of the air spring with a dynamic power generation function compact, and thus reducing the overall volume.

[0029] Among them, for the linear generator 4, the stator includes a sleeve 41 and an electromagnetic coil 42. One end of the sleeve 41 is a closed end, and an installation socket is provided at the other end of the sleeve 41. The electromagnetic coil 42 is located inside the sleeve 41; the rotor includes a support rod 43 and a permanent magnet 44. The permanent magnet 44 is arranged on the support rod 43; the support rod 43 is inserted into the sleeve 41, one end of the support rod 43 extends to the outside of the sleeve 41, the permanent magnet 44 is located inside the sleeve 41, and the electromagnetic coil 42 is located outside the permanent magnet 44.

[0030] Specifically, the linear generator 4 is installed between the upper cover 1 and the base 3 through the sleeve 41 and the support rod 43, and the permanent magnet 44 can reciprocate in the electromagnetic coil 42 to achieve power generation.

[0031] In addition, a wire passing hole is provided on the upper cover 1 or the base 3, and the power transmission cable of the linear generator 4 is hermetically inserted into the wire passing hole and extends to the outside of the air spring with a dynamic power generation function.

[0032] Specifically, for the power transmission cable connected to the electromagnetic coil 42 of the linear generator 4, it needs to be finally output to the outside and connected to the storage battery 202 for power supply. For this reason, the power transmission cable will pass through the wire passing hole, and a sealed connection state is formed between the wire passing hole and the power transmission cable to ensure that there is sufficient air pressure inside the airbag to meet the shock absorption requirements.

[0033] Regarding the method of hermetically connecting the power transmission cable, the structural configuration of the conventional cable hermetic connection can be referred to, and no restrictions are imposed here.

[0034] Furthermore, in order for the linear generator 4 to reliably generate electricity inside the load-bearing airbag 2, the linear generator 4 can swing between the upper cover 1 and the base 3.

[0035] Specifically, since the bearing airbag 2 is flexible as a whole, during use, the bearing airbag 2 will not only produce compression or elongation deformation in the longitudinal direction, but also a certain amount of lateral deformation. Therefore, for the linear generator 4, a corresponding amount of swing deflection can be generated between the upper cover 1 and the base 3 according to the deformation of the bearing airbag 2, so as to ensure the smoothness of the linear generator 4 during the reciprocating motion power generation process.

[0036] Furthermore, the power generation component also includes a first elastic support component 5 and a second elastic support component 6, the first elastic support component 5 is arranged at the end of the stator, and the second elastic support component 6 is arranged at the end of the mover located outside the stator.

[0037] Specifically, in order to satisfy the requirement that the linear generator 4 can generate corresponding swings according to the deformation state of the load-bearing airbag 2, and at the same time, the requirement that the linear generator 4 can be reliably and stably installed is also satisfied, the first elastic support component 5 and the second elastic support component 6 are respectively provided at both ends of the linear generator 4. The first elastic support component 5 and the second elastic support component 6 can generate corresponding deformations when subjected to force, so that the linear generator 4 generates corresponding swings when the load-bearing airbag 2 is laterally deformed, so as to ensure that the movement direction of the mover in the linear generator 4 is basically consistent with the telescopic direction of the load-bearing airbag 2.

[0038] Among them, according to the installation position of the linear generator 4, the first elastic support component 5 can be set on the upper cover 1, and the second elastic support component 6 can be set on the base 3; or, the second elastic support component 6 can be set on the upper cover 1, and the first elastic support component 5 can be set on the base 3.

[0039] In addition, the elastic supporting component may be represented as a physical body, such as a rubber block or a spring. For example, the first elastic supporting component 5 is a first rubber block; or, the first elastic supporting component 5 is a first spring. Similarly, the second elastic supporting component 6 is a second rubber block; or, the second elastic supporting component 6 is a second spring.

[0040] like Figure 1 As shown, the second elastic support component 6 is a second spring, a connecting plate is provided on the top of the support rod 43, one end of the second spring is fixedly connected to the upper cover 1 by bolts, and the other end is fixedly connected to the connecting plate by bolts. The first elastic support component 5 is a first rubber block, and the two ends of the first rubber block are fixedly connected to the sleeve 41 and the base 3 by bolts.

[0041] like Figure 2As shown, the first elastic support component 5 is a first spring, the second elastic support component 6 is a second spring, the first spring is connected between the sleeve 41 and the base 3 by bolts, and similarly, the two ends of the second spring are also connected between the upper cover 1 and the support rod 43 by bolt fastening.

[0042] like Figure 3 As shown, the first elastic support component 5 is a first rubber block, and the second elastic support component 6 is a second rubber block. The first rubber block is connected between the sleeve and the base 3 by bolts, and the second rubber block is connected between the upper cover 1 and the support rod 43 by bolts.

[0043] Furthermore, the base 3 is further provided with a mounting slot 31 ; the first elastic supporting component 5 is arranged at the bottom of the mounting slot 31 , and the stator is inserted into the mounting slot 31 .

[0044] Specifically, under normal circumstances, during the operation of the car, due to the ups and downs of the road surface, the vibration transmitted by the tires will cause the base 3 to produce a large bump amplitude. In order to improve the installation reliability, the sleeve 41 of the linear generator 4 is installed on the base 3, and the upper cover 1 is connected to the car body because the vibration amplitude is relatively small, so the support rod 43 is connected to the upper cover 1.

[0045] In order to provide good installation and support for the sleeve 41, a mounting slot 31 is provided on the base 3, and the closed end of the sleeve 41 is inserted into the mounting slot 31, so that the sleeve 41 can be more reliably installed through the mounting slot 31. Correspondingly, the first elastic support component 5 is also located in the mounting slot 31, and the sleeve 41 is connected to the mounting slot 31.

[0046] In addition, in order to meet the swing requirement of the sleeve 41, the installation slot 31 is in a bell-mouth structure.

[0047] Preferably, if Figure 4 As shown, in order to ensure that the linear generator 4 can still run smoothly when it swings and tilts, the following improvements are made to the linear generator 4. A limit support ring 45 is also provided on the mounting socket, and one end of the support rod 43 passes through the limit support ring 45 and extends to the outside of the sleeve 41.

[0048] The support rod 43 is provided with an extension portion 431 , which extends toward the closed end of the sleeve 41 and away from the permanent magnet 44 . The free end of the extension portion is also provided with a sliding support portion 432 , which is slidably disposed on the inner wall of the sleeve 41 .

[0049] Specifically, when a lateral offset occurs between the upper cover 1 and the base 3, the sleeve 41 and the support rod 43 will also swing to an inclined state. At this time, the support rod 43 will be subjected to a force perpendicular to its axis. In order to ensure that the permanent magnet 44 on the support rod 43 can reciprocate smoothly in the electromagnetic coil 42, an extension portion 431 is provided on the support rod 43 to extend below the lower end of the permanent magnet 44, and a sliding support portion 432 is provided on the extension portion 431. The sliding support portion 432 is made of a wear-resistant material (such as PEEK material).

[0050] After a lateral offset occurs between the upper cover 1 and the base 3, during the operation of the linear generator 4, the portion of the support rod 43 above the permanent magnet 44 is supported by the limit support ring 45. Correspondingly, the extension portion 431 is supported by cooperating with the inner wall of the sleeve 41 through the sliding support portion 432, thereby ensuring that the middle permanent magnet 44 can reciprocate smoothly in the electromagnetic coil 42.

[0051] Furthermore, in order to reduce the manufacturing cost, the electromagnetic coil 42 is distributed in the middle region of the sleeve 41, and the sliding support portion 432 is slidably provided in the bottom region of the sleeve 41. Specifically, the electromagnetic coil 42 is arranged outside the sliding stroke range of the sliding support portion 432. In this way, the usage amount of the electromagnetic coil 42 can be reduced. And for the load-bearing airbag 2, during most of the time of vehicle operation, the deformation amount of the load-bearing airbag 2 is within a certain range. Arranging the electromagnetic coil 42 in the middle region of the sleeve 41 can meet the power generation requirements of the linear generator 4 when the load-bearing airbag 2 operates within the conventional deformation range, so as to reduce the manufacturing cost of the linear generator 4.

[0052] Furthermore, in order to reduce the manufacturing cost, the electromagnetic coil 42 is distributed in the middle region of the sleeve 41, and the sliding support portion 432 is slidably provided in the bottom region of the sleeve 41. Specifically, the electromagnetic coil 42 is arranged outside the sliding stroke range of the sliding support portion 432. In this way, the usage amount of the electromagnetic coil 42 can be reduced. And for the load-bearing airbag 2, during most of the time of vehicle operation, the deformation amount of the load-bearing airbag 2 is within a certain range. Arranging the electromagnetic coil 42 in the middle region of the sleeve 41 can meet the power generation requirements of the linear generator 4 when the load-bearing airbag 2 operates within the conventional deformation range, so as to reduce the manufacturing cost of the linear generator 4.

[0053] Still further, in order to control the maximum compression stroke of the load-bearing airbag 2 to ensure the use reliability, a first elastic stop member 87 is further provided on the upper cover 1; and / or, a second elastic stop member is provided on the base 3.

[0054] Specifically, during the process of the load-bearing airbag 2 being compressed, the elastic stop component provided inside the load-bearing airbag 2 can play a role in limiting the position. The elastic stop component can be supported by materials such as rubber. That is, when the load-bearing airbag 2 is compressed to the maximum position, the elastic stop component will be squeezed between the upper cover 1 and the base 3. On the one hand, the elastic stop component can play a role in limiting the position to protect the load-bearing airbag 2, and on the other hand, the elastic stop component can also play a role in shock absorption in the compression limit state.

[0055] Among them, the first elastic stop component 87 is in a ring structure and surrounds the outside of the linear generator 4, or the first elastic stop component 87 includes a plurality of first elastic blocks distributed outside the linear generator 4. Similarly, the second elastic stop component is in a ring structure and surrounds the outside of the linear generator 4, or the second elastic stop component includes a plurality of second elastic blocks distributed outside the linear generator 4.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An air spring with dynamic power generation function, comprising: An upper cover, a load-bearing airbag and a base, the load-bearing airbag being arranged between the upper cover and the base, characterized in that it further comprises a power generation assembly; The power generation assembly includes a linear generator, the linear generator being located inside the load-bearing airbag and arranged vertically, one end of the linear generator being arranged on the upper cover and the other end of the linear generator being arranged on the base; Wherein, the moving direction of the linear generator is the same as the shock absorption direction of the load-bearing airbag.

2. The air spring with dynamic power generation function according to claim 1, characterized in that, The linear generator can swing between the upper cover and the base.

3. The air spring with dynamic power generation function according to claim 2, characterized in that, The power generation assembly further includes a first elastic support member and a second elastic support member, the first elastic support member being arranged at one end of the linear generator and the second elastic support member being arranged at the other end of the linear generator.

4. The air spring with dynamic power generation function according to claim 3, characterized in that, The first elastic support member is arranged on the upper cover and the second elastic support member is arranged on the base; Or, the second elastic support member is arranged on the upper cover and the first elastic support member is arranged on the base.

5. The air spring with dynamic power generation function according to claim 4, characterized in that The first elastic support member is a first rubber block; or, the first elastic support member is a first spring.

6. The air spring with dynamic power generation function according to claim 4, characterized in that, The second elastic support member is a second rubber block; or, the second elastic support member is a second spring.

7. The air spring with dynamic power generation function according to claim 3, characterized in that An installation slot is further arranged on the base; The first elastic support member is arranged at the bottom of the installation slot, and the linear generator is inserted into the installation slot.

8. The air spring with dynamic power generation function according to claim 7, characterized in that, The installation slot has a flared structure.

9. The air spring with dynamic power generation function according to claim 1, characterized in that, A first elastic stop member is further arranged on the upper cover; And / or, a second elastic stop member is arranged on the base.

10. The air spring with dynamic power generation function according to any one of claims 1-9, characterized in that, A wire passing hole is arranged on the upper cover or the base, and the power transmission cable of the linear generator is hermetically inserted into the wire passing hole and extends to the outside of the air spring with dynamic power generation function.

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