CN206490114U - Automobile batteries case vibration absorber - Google Patents

Abstract

The utility model discloses a vibration damping device for an automobile battery box, which comprises an elastic element and a connecting assembly installed on the elastic element, wherein one end of the connecting assembly is connected with the battery box, and the other end is connected with the vehicle frame. Compared with the prior art, the vibration damping device of the vehicle battery box of the utility model has the following advantages: 1) The hard connection between the vehicle frame and the battery box is changed to a soft connection, which significantly reduces the vibration transmitted from the vehicle frame to the battery box, and realizes the vibration of the battery box. 2) Ensure that the relative displacement between the battery box and the frame does not exceed the limit, which can prevent the battery box from being separated from the frame when the elastic element fails; 3) Maintain the installation controls of the battery box to ensure the reduction of the elastic element vibration performance.

Description

Vehicle battery box vibration damping device

technical field

The utility model belongs to the field of batteries, more specifically, the utility model relates to a vibration damping device for an automobile battery box.

Background technique

At present, the connection between the frame and the battery box of an electric vehicle is hard-connected by bolts, and the vibration of the frame will be completely transmitted to the battery box, resulting in excessive vibration load of the battery box. In order to meet the strength requirements, the weight and thickness of the battery box are designed to be large, which is not conducive to the lightweight of the battery box and the improvement of energy density.

In the existing technology, in order to realize the lightweight of the battery box, we choose to start with the material of the battery box itself, and achieve the purpose of weight reduction by using high-strength steel and composite materials, but this method will increase the cost and cannot fundamentally solve the group efficiency The problem.

In view of this, it is indeed necessary to provide a vibration damping device for an automobile battery box that can reduce vibration and reduce weight.

Utility model content

The purpose of the invention of the utility model is to overcome the defects of the prior art and provide a vibration-damping device for a battery box of an automobile that can reduce vibration and reduce weight.

In order to achieve the purpose of the above utility model, the utility model provides a vibration damping device for an automobile battery box, which includes an elastic element and a connecting assembly mounted on the elastic element, one end of the connecting assembly is connected to the battery box, and the other end is connected to the vehicle frame connection.

As an improvement of the vibration damping device of the automobile battery box of the utility model, the elastic element is made of elastic or elastoplastic material with vibration damping effect.

As an improvement of the vibration damping device for the vehicle battery box of the utility model, the connecting assembly includes a base connected to the lower end of the elastic element, a hook connected to the upper end of the elastic element, and a fixed joint connected to the hook.

As an improvement of the vibration damping device for the automobile battery box of the utility model, one end of the fixed joint is connected with the battery box.

As an improvement of the vibration damping device for the automobile battery box of the utility model, the base is connected to the vehicle frame, and the center of the base is provided with an accommodation space, and the elastic element is accommodated in the accommodation space.

As an improvement of the vibration damping device of the automobile battery box of the utility model, there is a gap between the inner wall of the base and the elastic element.

As an improvement of the vibration damping device of the automobile battery box of the utility model, several limiting holes are arranged on the inner side of the base in the circumferential direction.

As an improvement of the vibration damping device for the automobile battery box of the utility model, the hook is provided with several limit blocks corresponding to the limit holes, and there is a gap between the limit blocks and the limit holes.

As an improvement of the vibration damping device for the automobile battery box of the utility model, the elastic element is a rubber bush.

As an improvement of the vibration damping device for the vehicle battery box of the utility model, the battery box and the vehicle frame are respectively provided with several mounting holes.

As an improvement of the vehicle battery box vibration damping device of the utility model, the connecting assembly includes two studs, one stud is connected to the battery box through the installation hole, and the other is connected to the vehicle frame through the installation hole. All are fixed by nuts.

Compared with the prior art, the vibration damping device of the vehicle battery box of the utility model has the following beneficial effects: 1) The hard connection between the vehicle frame and the battery box is changed to a soft connection, which significantly reduces the vibration transmitted from the vehicle frame to the battery box, and realizes 2) Ensure that the relative displacement between the battery box and the frame does not exceed the limit, which can prevent the battery box from being separated from the frame when the elastic element fails; 3) Maintain the installation controls of the battery box to ensure the reduction of the elastic element vibration performance.

Description of drawings

Below in conjunction with the accompanying drawings and specific implementation methods, the utility model automobile battery box vibration damping device and its beneficial technical effects will be described in detail, wherein:

Fig. 1 is a schematic diagram of the assembly of the vibration damping device for an automobile battery box of the present invention.

Fig. 2 is a schematic cross-sectional view of the first embodiment of the vibration damping device for an automobile battery box of the present invention.

Fig. 3 is a schematic structural view of the first embodiment of the vibration damping device for an automobile battery box of the present invention.

Fig. 4 is a schematic structural view of the second embodiment of the vibration damping device for an automobile battery box of the present invention.

Fig. 5 is a schematic assembly diagram of the second embodiment of the vibration damping device for the vehicle battery box of the present invention.

detailed description

In order to make the purpose of the invention, technical solutions and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

Please refer to Fig. 1, the vibration damping device for the battery box of the utility model includes an elastic element 10 and a connecting assembly 20 installed on the elastic element 10, wherein one end of the connecting assembly 20 is connected with the battery box 30, and the other end is connected with the vehicle frame 40 connections. The elastic element 10 is made of elastic or elastoplastic material with vibration damping effect, and the stiffness and damping coefficient of the elastic element 10 match the weight of the battery box 30 and its dynamic characteristics, so as to achieve the best vibration damping effect.

Example 1

Please refer to Fig. 2 and shown in Fig. 3, the first embodiment of the vibration damping device for the battery box of the utility model includes an elastic element 10 and a connecting assembly 20 installed on the elastic element 10, wherein one end of the connecting assembly 20 is connected to the battery box 30 is connected, and the other end is connected with vehicle frame 40.

The connection assembly 20 includes a base 202 connected to the lower end of the elastic element 10 , a hook 204 connected to the upper end of the elastic element 10 , and a fixed joint 206 connected to the hook 204 . One end of the fixed joint 206 is connected to the battery box 30 .

The base 202 is connected to the vehicle frame 40 through bolts, welding or other connection methods, and combined with the elastic element 10 through vulcanization or other processes. There is a certain gap between the inner wall of the base 202 and the elastic element 10 to ensure that the elastic element 10 can deform laterally to achieve lateral vibration damping. The center of the base 202 is provided with an accommodating space for accommodating the elastic element 10, which can not only ensure the thickness of the elastic element 10 to increase the vibration damping effect, but also reduce the space occupied by the entire device in the axial direction. A plurality of limiting holes 208 are evenly or unevenly distributed on the inner side of the base 202 in the circumferential direction.

The hook 204 is connected with the elastic element 10 through vulcanization or other processes. The hook 204 distributes a plurality of limit blocks 210 evenly or unevenly in the circumferential direction. The limit block 210 cooperates with the limit hole 208 on the base 202, and has Limit or fail-safe function. According to an embodiment of the present utility model, certain gaps are left between the limiting block 210 and the limiting hole 208 in three spatial directions to ensure a certain amount of displacement.

One end of the fixed joint 206 is connected to the hook 204 by welding or other hard connections, and the other end is connected to the battery box 30 by a nut 212 or by welding or other connections.

Please refer to Fig. 2 and shown in Fig. 3, the damping effect of the vibration damping device of the vehicle battery box of the present invention is embodied in the following aspects:

1) In the vertical direction:

The center of the base 202 is provided with an accommodation space for accommodating part of the elastic element 10, reducing the distance between the upper surface of the base 202 and the upper surface of the hook 204, reducing the vertical space, while ensuring the thickness of the elastic element 10, and enhancing the vibration damping performance;

When the vertical displacement of the elastic element 10 is too large, the limit block 210 of the hook 204 contacts the upper edge of the limit hole 208 of the base 202, and has a limit function;

When the elastic element 10 is damaged, the limit block 210 contacts the upper edge of the limit hole 208 to lock the vertical movement of the battery box 30 and the vehicle frame 40 , which has a fail-safe function.

2) Vehicle driving direction and vehicle side orientation:

When the lateral displacement of the elastic element 10 is too large, the vertical arm of the hook 204 contacts the upper edge of the limiting hole 208 of the base 202, which has a limiting function;

When the elastic element 10 is damaged, the vertical arm of the hook 204 contacts the upper edge of the limiting hole 208 to lock the lateral sliding of the battery box 30 and the vehicle frame 40 , which has a fail-safe function.

Example 2

Please refer to Fig. 4 and Fig. 5, the second embodiment of the vibration damping device for the vehicle battery box of the present invention includes an elastic element 10 and a connecting assembly 20 installed on the elastic element 10, wherein one end of the connecting assembly 20 is connected to the battery box 30 Connect, the other end is connected with vehicle frame 40.

In the illustrated embodiment, the elastic element 10 is a rubber bushing 102, and the connection assembly 20 includes two studs 220, 221, and external threads are processed on the studs 220, 221. The upper and lower ends of the rubber bushing 102 are respectively connected to the studs 220 and 221 by vulcanization or other processes. The battery box 30 and the vehicle frame 40 are respectively provided with mounting holes, the studs 220 pass through the mounting holes of the battery box 30, the studs 221 pass through the mounting holes of the vehicle frame 40, and cooperate with the studs 220, 221 with nuts 224 respectively. lock tight.

Please refer to Fig. 4 and shown in Fig. 5, the damping effect of the vibration damping device of the vehicle battery box of the present invention is embodied in the following aspects: the deformation of the elastic element 10 in space has three moving directions and three rotating directions, and each direction has A stiffness parameter and a damping parameter, reasonable selection of the values of these parameters can make the elastic element 10 achieve the best damping effect, and at the same time keep the displacement of the battery box 30 relative to the vehicle frame 40 within an acceptable range.

The battery box 30 has a plurality of installation holes, and the damping device for the automobile battery box of the utility model can be used in all or individual installation holes as required to achieve the best vibration damping effect.

It can be understood that the stiffness and damping parameters of the elastic elements 10 in different mounting holes of the battery box 30 may be the same or different, and reasonable matching can achieve a better vibration damping effect.

In combination with the above description of the embodiment of the utility model, it can be seen that compared with the prior art, the vibration damping device for the vehicle battery box of the utility model has the following beneficial effects: 1) The hard connection between the vehicle frame 40 and the battery box 30 is changed to a soft connection, significantly The vibration transmitted from the vehicle frame 40 to the battery box 30 is reduced, and the lightweight design of the battery box 30 is realized; 2) The relative displacement between the battery box 30 and the vehicle frame 40 is guaranteed not to exceed the limit, and the battery box 30 can be prevented from being damaged when the elastic element 10 fails. 3) maintain the installation control of the battery box 30, and ensure the damping performance of the elastic element 10.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also make appropriate changes and modifications to the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (10)

1. A vibration damping device for an automobile battery box, characterized in that it comprises an elastic element and a connecting assembly mounted on the elastic element, one end of the connecting assembly is connected to the battery box, and the other end is connected to the vehicle frame. 2. The vibration damping device for an automobile battery box according to claim 1, wherein the elastic element is made of elastic or elastoplastic material with damping effect. 3. The vibration damping device for a car battery box according to claim 1, characterized in that, the connecting assembly comprises a base connected to the lower end of the elastic element, a hook connected to the upper end of the elastic element, and a fixed joint connected to the hook . 4. The vibration damping device for a battery box of an automobile according to claim 3, wherein one end of the fixed joint is connected to the battery box. 5 . The vibration damping device for an automobile battery box according to claim 3 , wherein the base is connected to the vehicle frame, and an accommodation space is provided at the center of the base, and the elastic element is accommodated in the accommodation space. 5 . 6 . The vibration damping device for an automobile battery box according to claim 3 , wherein there is a gap between the inner side wall of the base and the elastic element. 7 . 7 . The vibration damping device for an automobile battery box according to claim 3 , wherein a plurality of limiting holes are provided on the inner side of the base in the circumferential direction. 7 . 8. The vibration damping device for an automobile battery box according to claim 7, characterized in that, the hook is provided with several limit blocks corresponding to the limit holes, and there is a gap between the limit blocks and the limit holes. There are gaps. 9. The vibration damping device for an automobile battery box according to claim 1, wherein the battery box and the vehicle frame are respectively provided with several mounting holes. 10. The vibration damping device for an automobile battery box according to claim 9, characterized in that, the connecting assembly comprises two studs, one stud passes through the mounting hole to connect with the battery box, and the other stud passes through the mounting hole It is connected with the frame and fixed by nuts.