CN219779044U

CN219779044U - Damping structure for lithium battery pack

Info

Publication number: CN219779044U
Application number: CN202320060034.4U
Authority: CN
Inventors: 朱新宇; 曹玉超
Original assignee: Beijing Yiben Zhengjing Technology Co ltd
Current assignee: Beijing Yiben Zhengjing Technology Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-09-29
Anticipated expiration: 2033-01-09

Abstract

The utility model provides a damping structure for a lithium battery pack, and relates to the field of lithium batteries. The damping structure for the lithium battery pack comprises a box body, wherein a damping seat is arranged at the bottom of the box body, the bottom of the damping seat is fixedly connected with the bottom of the box body, a damping component is arranged on the side wall of the box body, the damping component comprises a side plate, two supporting rods and a first spring damper, one end of each supporting rod is hinged to the side plate, a sliding block is hinged to the other end of each supporting rod, a sliding groove is formed in the box body of the sliding block, the sliding blocks are arranged in the sliding grooves in a sliding mode, and the first spring damper is arranged between the two supporting rods; the lithium battery pack is damped in multiple directions through the damping seat and the damping component, so that damage of rigid impact to the lithium battery pack is reduced, and the lithium battery pack is effectively protected.

Description

Damping structure for lithium battery pack

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a damping structure for a lithium battery pack.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution, which uses lithium metal or a lithium alloy as a negative electrode material, and can be broadly divided into two types: lithium metal batteries and lithium ion batteries. The lithium ion battery does not contain metallic lithium and can be charged, the safety, specific capacity, self-discharge rate and cost performance of the lithium metal battery are superior to those of the lithium ion battery, along with the development of scientific technology, the lithium battery is now the mainstream, but the conventional lithium battery has no damping function, so that accidents are easy to occur in the use process of the lithium battery, the lithium battery is damaged, the time is wasted, the working efficiency is reduced, and the cost is increased.

The utility model discloses a damping structure of a lithium battery box body, which belongs to the field of lithium battery boxes and comprises a damping base, a particle damping base, a first spring, a mounting plate and a protection ring, wherein the particle damping base is fixed at the top of the damping base, the first spring is fixed on the bottom wall of the interior of the particle damping base, the mounting plate is fixed at the top end of the first spring, a plurality of first radiating holes and threaded holes are formed in the mounting plate, the threaded holes are positioned on the left side and the right side of the mounting plate, a plurality of second radiating holes and third radiating holes are formed in the left side wall and the right side wall of the particle damping base, the second radiating holes are positioned above the mounting plate, the third radiating holes are positioned below the mounting plate, the protection ring is embedded in the interior of the particle damping base, and the mounting plate is positioned in the protection ring. The damping structure of the lithium battery box body has multiple damping and good damping effect. However, the damping direction is mainly up and down, damping cannot be performed at multiple angles, and the use effect is limited.

Disclosure of Invention

The utility model aims to provide a damping structure for a lithium battery pack, which can realize the damping of the lithium battery pack in multiple directions through a damping seat and a damping component, reduce the damage of rigid impact to the lithium battery pack and effectively protect the lithium battery pack.

Embodiments of the present utility model are implemented as follows:

the embodiment of the utility model provides a damping structure for a lithium battery pack, which comprises a box body, wherein a damping seat is arranged at the bottom of the box body, the bottom of the damping seat is fixedly connected with the bottom of the box body, a damping component is arranged on the side wall of the box body, the damping component comprises a side plate, two support rods and a first spring damper, one end of each support rod is hinged to the side plate, the other end of each support rod is hinged to a sliding block, a sliding groove is arranged on the corresponding sliding block on the box body, the sliding blocks are arranged in the sliding grooves in a sliding manner, and the first spring damper is arranged between the two support rods.

In some embodiments of the present utility model, the shock absorbing seat includes an upper seat and a lower seat, wherein a second spring damper is disposed on a lower surface of the upper seat, and one end of the second spring damper is fixedly connected to an upper surface of the lower seat.

In some embodiments of the present utility model, a third spring damper is disposed inside the lower seat, and one end of the third spring damper is fixedly connected to the lower surface of the upper seat.

In some embodiments of the present utility model, a heat dissipation hole is further formed on a side wall of the case.

In some embodiments of the present utility model, a heat dissipating device is disposed in the heat dissipating hole.

In some embodiments of the utility model, the heat dissipating device is a heat dissipating fan or a semiconductor heat sink.

In some embodiments of the utility model, a surface of the side plate is provided with a first soft layer.

In some embodiments of the utility model, a second soft layer is disposed on the upper surface of the upper seat.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

(1) According to the lithium battery pack, the damping component is arranged on the side face of the box body, when the lithium battery pack is placed in the box body, the side plates of the damping component are abutted against the lithium battery pack, and when the lithium battery pack is subjected to vibration, the two support rods and the first spring damper achieve the damping effect, so that the lithium battery pack is protected, and the service life of the lithium battery pack is prolonged.

(2) According to the utility model, the second spring damper and the third spring damper of the damping seat are used for damping the lithium battery pack, so that the lithium battery pack is protected, and the service life is prolonged.

(3) The utility model is also provided with the heat dissipation holes and the heat dissipation device, thereby realizing the heat dissipation function of the inside of the shock absorption structure, being beneficial to protecting the lithium battery pack and prolonging the service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a top view of the present utility model;

fig. 3 is a schematic structural diagram of the heat dissipation structure and the soft layer added in the present utility model.

Icon: 1. a case; 2. a side plate; 3. a support rod; 4. a first spring damper; 5. a slide block; 6. a chute; 7. an upper seat; 8. a lower seat; 9. a second spring damper; 10. a third spring damper; 11. a heat radiation hole; 12. a heat sink; 13. a first soft layer; 14. a second soft layer.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

This embodiment provides a shock-absorbing structure for lithium cell group, as shown in fig. 1, it includes box 1, the bottom of box 1 is provided with the shock mount, the bottom of shock mount and the bottom fixed connection of box 1, the lateral wall of box 1 is provided with damper, damper includes curb plate 2, two bracing pieces 3 and first spring damper 4, the one end of bracing piece 3 articulates in curb plate 2, the other end of bracing piece 3 articulates there is slider 5, corresponding slider 5 is provided with spout 6 on the box 1, slider 5 slides and sets up in spout 6, first spring damper 4 sets up between two bracing pieces 3.

In this embodiment, when the lithium battery pack is placed in the case 1, a shock absorbing seat is arranged at the bottom of the case 1, the lithium battery pack is placed on the shock absorbing seat, the shock absorbing seat is used for buffering the vibration of the lithium battery pack in the vertical direction, shock absorbing components are arranged on the side face of the case 1, the number of the shock absorbing components can be four, the four shock absorbing components correspond to the four side faces of the lithium battery pack respectively, and the shock absorbing components are used for buffering the vibration of the side face of the lithium battery pack in the vertical direction; according to the embodiment, the shock absorption seat and the shock absorption component are used for achieving multi-direction shock absorption of the lithium battery pack, so that damage of rigid impact to the lithium battery pack is reduced, and the lithium battery pack is effectively protected.

In the above embodiment, the damping principle of the damper assembly is: the vibration is transmitted to the two support rods 3 through the side plates 2, the two support rods 3 are outwards opened after being vibrated, the sliding blocks 5 slide in the sliding grooves 6, limiting bars are arranged on two sides of the sliding grooves 6 and can prevent the sliding blocks 5 from falling off from the sliding grooves 6, the first spring damper 4 plays a role in restraining the two support rods 3 and absorbs the vibration of the support rods 3, and then the support rods 3 quickly return to the original positions after being vibrated, enter into a stable state and play a role in damping.

In some implementations of the foregoing embodiments, as shown in fig. 2, two support rods 3 and the first spring damper 4 in the vibration damping assembly form a vibration damping member, and on the side plate 2, the number of the vibration damping members can be adjusted according to practical situations, and two or more vibration damping members can be set, so that the vibration damping effect can be enhanced by using a plurality of vibration damping members, and a better vibration damping effect can be achieved.

Example 2

The present embodiment provides a shock absorbing structure for a lithium battery pack, as shown in fig. 1, which is substantially the same as embodiment 1, the main difference between the two being that: the shock-absorbing seat comprises an upper seat 7 and a lower seat 8, the lower surface of the upper seat 7 is provided with a second spring damper 9, and one end of the second spring damper 9 is fixedly connected to the upper surface of the lower seat 8.

In this embodiment, the lower seat 8 in the shock absorbing seat is fixedly connected with the box body 1, the connection mode may be a bolt connection, the second spring damper 9 is disposed on the lower surface of the upper seat 7, the mounting hole is disposed on the lower surface of the upper seat 7, one end of the second spring damper 9 is disposed in the mounting hole, the other end of the second spring damper 9 is fixedly connected with the upper surface of the lower seat 8, and the connection mode may be a bolt connection. When the lithium battery pack is in use, the lithium battery pack is placed on the upper surface of the upper seat 7, and when the lithium battery pack is vibrated, the second spring damper 9 can be used for realizing shock absorption and buffering, so that the lithium battery pack is effectively protected.

In the above embodiment, the number of the second spring dampers 9 may be plural, the lower ends of the plural second spring dampers 9 may be fixed on the mounting plate, and the mounting plate may be fixedly connected to the upper surface of the lower seat 8, so as to facilitate the mounting.

Further, a third spring damper 10 is provided inside the lower seat 8, and one end of the third spring damper 10 is fixedly connected to the lower surface of the upper seat 7.

In the present embodiment, the lower seat 8 is of a hollow structure, in which a third spring damper 10 is disposed, and one end of the third spring damper 10 is fixedly connected to the lower surface of the upper seat 7 through a through hole in the upper surface of the lower seat 8, and the other end is fixed inside the lower seat 8. The function of third spring damper 10 is unanimous with the function of second spring damper 9, all is used for the shock attenuation buffering to lithium cell group, and second spring damper 9 and third spring damper 10 can cooperate, realize multiple absorbing effect for the shock attenuation effect of shock mount is better.

In the above embodiment, the number of the third spring dampers 10 may be set plural; the second spring damper 9 and the third spring damper 10 are arranged such that the second spring damper 9 is concentrated in the middle between the lower seat 8 and the upper seat 7 and the third spring damper 10 is distributed at the edge between the lower seat 8 and the upper seat 7.

Example 3

The present embodiment provides a shock absorbing structure for a lithium battery pack, as shown in fig. 3, which is substantially the same as embodiment 1 or embodiment 2, the main difference between the two being that: the side wall of the box body 1 is also provided with a heat dissipation hole 11.

In this embodiment, since the lithium battery pack generates heat during use, the heat dissipation holes 11 need to be formed in the case 1, so that the heat in the case 1 can be dissipated, and the long-time use of the lithium battery pack is avoided, and the service life is reduced.

In the above embodiment, the dustproof net is disposed in the heat dissipation hole 11, and the dustproof net can prevent foreign matters from entering the case 1 through the heat dissipation hole 11, which is beneficial to protecting the cleaning of the internal space of the case 1, so that the lithium battery pack can work normally. The dust-proof net can be made of stainless steel with the mesh diameter of 0.2 cm.

Further, a heat sink 12 is provided in the heat dissipation hole 11. In this embodiment, in order to improve the heat dissipation efficiency, heat dissipation can be quickly achieved, and the heat dissipation device 12 is added in the heat dissipation hole 11 to perform auxiliary heat dissipation.

Further, the heat sink 12 is a heat dissipating fan or a semiconductor heat sink. In this embodiment, the working principle of the cooling fan is implemented according to energy conversion, that is: electric energy → electromagnetic energy → mechanical energy → kinetic energy. The circuit principle is generally divided into various forms, and the performance of the fan is different due to different adopted circuits. The specification size of the fan is from 8mm to 280mm, and the voltage is 5V,12V,24V,48V,110V,220V,380V, and the appearance is square, round, olive-shaped, etc. The semiconductor radiator consists of a semiconductor cooling fin and a fan, and in principle, the semiconductor cooling fin is a heat transfer tool. When a current passes through a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer is generated between the two ends, and the heat is transferred from one end to the other end, so that a temperature difference is generated to form a cold end and a hot end. The semiconductor itself has a resistance that generates heat when current is passed through the semiconductor, thereby affecting heat transfer. But also the heat between the two plates is inversely transferred by the air and the semiconductor material itself. When the cold and hot ends reach a certain temperature difference, and the two heat transfer amounts are equal, a balance point is reached, and the forward and reverse heat transfer amounts are offset. At this time, the temperature of the cold and hot ends will not change continuously. In order to achieve lower temperature, the temperature of the hot end can be reduced by adopting heat dissipation and the like. The fan and the radiating fin mainly radiate heat at the hot end of the refrigerating fin. Generally, the temperature difference between the cold end and the hot end of the semiconductor refrigeration sheet can reach 40-65 ℃, and if the temperature of the hot end is reduced in an active heat dissipation mode, the temperature of the cold end is correspondingly reduced, so that the temperature is lower.

Example 4

This embodiment provides a shock absorbing structure for a lithium battery pack, as shown in fig. 3, which is substantially the same as any one of embodiments 1 to 3, the main difference between the two being that: the surface of the side plate 2 is provided with a first soft layer 13. In the present embodiment, the side plate 2 is in contact with the lithium battery pack, and the first soft layer 13 is provided on the contact surface with the lithium battery pack. The XPE polyethylene foaming shock pad is adopted in first soft layer 13, and it has the effect of shock attenuation, gives sound insulation, can further protect lithium cell group, improves the security.

Further, the upper surface of the upper seat 7 is provided with a second soft layer 14. In this embodiment, the upper surface of the upper seat 7 contacts with the lithium battery, and a second soft layer 14 is disposed on the contact surface of the upper seat and the lithium battery pack, and the first soft layer 13 is an XPE polyethylene foam shock pad or foam. The foamed plastic is a polymer material formed by dispersing a large number of gas micropores in solid plastic, has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like, and can further protect the lithium battery pack and improve the safety.

In summary, the embodiments of the present utility model provide a shock absorbing structure for a lithium battery pack, which has at least the following advantages or beneficial effects:

(1) According to the utility model, the damping component is arranged on the side surface of the box body 1, when the lithium battery pack is placed in the box body 1, the side plate 2 of the damping component is abutted against the lithium battery pack, and when the lithium battery pack is subjected to vibration, the two support rods 3 and the first spring damper 4 realize damping effect, so that the lithium battery pack is protected, and the service life is prolonged.

(2) The second spring damper 9 and the third spring damper 10 of the damping seat are used for damping the lithium battery pack, so that the lithium battery pack is protected, and the service life of the lithium battery pack is prolonged.

(3) The utility model is also provided with the heat dissipation holes 11 and the heat dissipation device 12, thereby realizing the heat dissipation function of the inside of the shock absorption structure, being beneficial to protecting the lithium battery pack and prolonging the service life.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A shock-absorbing structure for lithium cell group, its characterized in that, the power distribution box comprises a box body, the bottom of box is provided with the shock-absorbing seat, the bottom of shock-absorbing seat with the bottom fixed connection of box, the lateral wall of box is provided with damper, damper includes curb plate, two bracing pieces and first spring damper, the one end of bracing piece articulate in the curb plate, the other end of bracing piece articulates there is the slider, correspond the slider on the box and be provided with the spout, the slider slip set up in the spout, first spring damper sets up in two between the bracing piece.

2. The shock absorbing structure for a lithium battery pack according to claim 1, wherein the shock absorbing seat comprises an upper seat and a lower seat, a second spring damper is arranged on the lower surface of the upper seat, and one end of the second spring damper is fixedly connected to the upper surface of the lower seat.

3. The shock absorbing structure for a lithium battery pack according to claim 2, wherein a third spring damper is provided inside the lower seat, and one end of the third spring damper is fixedly connected to the lower surface of the upper seat.

4. The shock absorbing structure for a lithium battery pack according to claim 1, wherein the side wall of the case is further provided with a heat dissipation hole.

5. The shock absorbing structure for a lithium battery pack as set forth in claim 4, wherein a heat dissipating device is disposed in the heat dissipating hole.

6. The shock absorbing structure for a lithium battery pack according to claim 5, wherein the heat dissipating device is a heat dissipating fan or a semiconductor heat sink.

7. The shock absorbing structure for a lithium battery pack according to claim 1, wherein the surface of the side plate is provided with a first soft layer.

8. The shock absorbing structure for a lithium battery pack according to claim 2, wherein the upper surface of the upper seat is provided with a second soft layer.