CN219393490U

CN219393490U - Battery case with protective structure

Info

Publication number: CN219393490U
Application number: CN202320356177.XU
Authority: CN
Inventors: 薛会民
Original assignee: Shenzhen Kaisicheng Technology Co ltd
Current assignee: Shenzhen Kaisicheng Technology Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-07-21
Anticipated expiration: 2033-03-01

Abstract

The utility model provides a battery shell with a protection structure, which relates to the technical field of battery protection and comprises a battery protection cover and a shell component, wherein the bottom of the battery protection cover is fixedly connected with the top of the shell component, and the battery protection cover comprises a cover body, a fixing plate, a pressure measuring device and a control plate. According to the utility model, the pressure inside the battery cell in the shell can be detected through the pressure measuring device, when the pressure is overlarge and reaches the rated value of the pressure, the control panel controls the automatic opening of the pressure release part, the pressure release part can automatically and rapidly release pressure, the phenomenon of explosion of the battery shell is prevented, the working safety of the battery pack is further improved, through adding the cooling pipe, the water inlet pipe and the water outlet pipe, cooling water in the cooling box enters the cooling pipe through the water inlet pipe, the cooling pipe can take away most of heat at the tops of the heat dissipation plate and the heat dissipation net, the cooling pipe realizes heat exchange with the battery pack, the sealing performance of the shell is ensured, and the safety of the working environment of the battery in the shell is improved.

Description

Battery case with protective structure

Technical Field

The utility model relates to the technical field of battery protection, in particular to a battery shell with a protection structure.

Background

The battery shell is a shell or wall for wrapping battery functional parts and chemical substances, the common battery shell is usually made of an aluminum shell material, the aluminum alloy is low in density, but high in strength, is close to or exceeds that of high-quality steel, is good in plasticity, has excellent electric conductivity, thermal conductivity and corrosion resistance, is widely used in the industry, and is also a stainless steel rigid shell, the battery shell made of the material is more, the stainless steel is stainless steel, acid-resistant steel, weak corrosion media such as air, steam and water or stainless steel is called stainless steel, and the steel resistant to corrosion of the chemical corrosion media is called acid-resistant steel.

In the prior art, for example, the Chinese patent number is: the utility model provides a "protective housing of lithium cell" of CN216354551U, including the protective housing, the protective cover is installed on the upper portion of protective housing, and the upper portion welded fastening of protective cover has handedly, the sleeve is installed to one side of protective housing, the inner wall fixed mounting of protective housing has fixed L type, and the top face sliding connection of fixed L type has movable L type, two fixed axles and two movable nuts are installed respectively at the both ends of fixed L type and movable L type, and the equal threaded connection in the inside of two fixed axles and two movable nuts has the lead screw, slewing mechanism is installed to one end of two lead screws.

However, when the conventional battery shell is used, the protection performance of the common battery shell is weak, and when the pressure of the battery core of the internal battery is too high, the pressure cannot be relieved in real time, so that the protection safety effect cannot be achieved; meanwhile, the heat dissipation performance of the battery shell is poor, heat inside the shell cannot be dispersed outwards, the temperature of the battery is quickly raised, and the battery shell with the protection structure is provided for the problems.

Disclosure of Invention

The utility model aims to solve the problems that the prior battery shell has weaker protective performance when in use, and the pressure of an internal battery cell cannot be relieved in real time under the condition of overlarge pressure, so that the protective safety effect cannot be achieved; meanwhile, the heat dissipation performance of the battery shell is poor, heat in the shell cannot be dispersed outwards, the problem of rapid temperature rise in the battery is caused, and the battery shell with the protection structure is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a battery case with protective structure, includes battery protection cover and shell subassembly, the bottom of battery protection cover and the top fixed connection of shell subassembly, battery protection cover includes lid, fixed plate, pressure measurer and control panel, the top of lid and the bottom fixed connection of fixed plate, the one end and the top fixed mounting of pressure measurer of fixed plate, just the other end inboard of fixed plate and the bottom fixed connection of control panel, the one end fixedly connected with pressure release spare of control panel, shell subassembly includes shell, arc, outlet pipe and cooling tube, the both ends symmetry fixedly connected with heating panel of arc, the top of heating panel evenly is provided with a plurality of heat dissipation nets, the outside of cooling tube is laminated with the bottom of heating panel mutually, the one end of arc is provided with the inlet tube, the one end of outlet pipe and the one end fixed connection of arc.

Preferably, the outer side of the heat dissipation plate is fixedly connected with the inner side of the shell, and two ends of the arc-shaped plate are fixedly connected with the bottom of the shell.

Preferably, two protecting shells are symmetrically and fixedly connected to two sides of the shell, and a plurality of energy absorbing strips are uniformly arranged on the inner side of each protecting shell.

Preferably, four fixing barrels are symmetrically arranged on the inner sides of two ends of the shell, and four fixing blocks are symmetrically and fixedly connected to two ends of the bottom of the cover body.

Preferably, the bottom of the fixed block is fixedly clamped with the inner side of the fixed cylinder, and the two ends of the top of the cover body are symmetrically and rotationally connected with handles.

Preferably, the bottom of the cover body is attached to the top of the shell.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. according to the utility model, the pressure gauge, the pressure release part and the control panel are added, so that the pressure gauge can detect the internal pressure of the battery cell in the battery shell, when the pressure is overlarge and reaches the pressure rated value, the control panel controls the pressure release part to be automatically opened, the pressure release part can automatically and rapidly release pressure, the explosion phenomenon of the battery shell is prevented, and the working safety of the battery pack is further improved.

2. According to the utility model, the cooling pipe, the water inlet pipe and the water outlet pipe are added, so that cooling water in the cooling box enters the cooling pipe through the water inlet pipe, the cooling pipe can take away most heat at the tops of the heat dissipation plate and the heat dissipation net, the cooling pipe realizes heat exchange with the battery pack, the tightness of the shell is ensured, and the safety of the working environment of the battery in the shell is improved.

Drawings

Fig. 1 is a schematic perspective view of a battery case with a protection structure according to the present utility model;

fig. 2 is a schematic bottom view of a battery case with a protection structure according to the present utility model;

fig. 3 is a schematic structural view of a battery case assembly with a protection structure according to the present utility model;

fig. 4 is a schematic bottom view of a cooling tube of a battery case with a protection structure according to the present utility model.

Legend description: 1. a battery protection cover; 2. a housing assembly; 11. a cover body; 12. a fixing plate; 13. a pressure gauge; 14. a pressure release member; 15. a control board; 16. a handle; 17. a fixed block; 21. a protective shell; 22. an energy absorbing strip; 23. a housing; 24. a fixed cylinder; 25. a water inlet pipe; 26. a water outlet pipe; 27. an arc-shaped plate; 28. a heat dissipation plate; 29. a cooling tube; 30. a heat dissipation net.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

In embodiment 1, as shown in fig. 1-4, the utility model provides a battery shell with a protection structure, which comprises a battery protection cover 1 and a shell component 2, wherein the bottom of the battery protection cover 1 is fixedly connected with the top of the shell component 2, the battery protection cover 1 comprises a cover body 11, a fixed plate 12, a pressure measuring device 13 and a control plate 29, the top of the cover body 11 is fixedly connected with the bottom of the fixed plate 12, one end of the fixed plate 12 is fixedly installed with the top of the pressure measuring device 13, the inner side of the other end of the fixed plate 12 is fixedly connected with the bottom of the control plate 15, one end of the control plate 15 is fixedly connected with a pressure relief piece 14, the pressure measuring device 13 can detect the internal pressure of a battery core in the shell 23, when the pressure is too high, the pressure relief piece 14 can automatically and rapidly open the pressure relief piece 14, the shell component 2 comprises a shell 23, an arc 27, an outlet pipe 26 and a cooling pipe 29, two ends of the arc 27 are symmetrically and fixedly connected with a cooling plate 28, a plurality of cooling nets 30 are uniformly arranged on the top of the cooling plate 28, the outer side of the cooling pipe 29 is attached to the bottom of the pressure measuring device 13, one end of the cooling pipe 27 is fixedly connected with the bottom of the control plate 15, one end of the cooling pipe 27 is fixedly connected with the battery shell 23, and the inner side of the cooling pipe 23 is fixedly connected with the arc 23, and the safety of the battery shell 23 is sealed.

As shown in fig. 3 and 4, the outer side of the heat dissipation plate 28 is fixedly connected with the inner side of the housing 23, two ends of the arc plate 27 are fixedly connected with the bottom of the housing 23, the arc plate 27 is used for fixing the water inlet pipe 25 and the water outlet pipe 26, and the heat dissipation plate 28 is used for placing a battery assembly, so that heat dissipation of the battery assembly is facilitated.

As shown in fig. 1, two protecting shells 21 are symmetrically and fixedly connected to two sides of a shell 23, a plurality of energy absorbing strips 22 are uniformly arranged on the inner side of each protecting shell 21, and each protecting shell 21 is made of an SMC composite material, so that the battery shell has excellent performances of corrosion resistance, light weight and high structural strength, and the energy absorbing strips 22 can absorb energy when the battery shell is collided.

As shown in fig. 1 and 2, four fixing drums 24 are symmetrically arranged at inner sides of two ends of the casing 23, four fixing blocks 17 are symmetrically and fixedly connected to two ends of the bottom of the cover body 11, the battery assembly is placed inside the casing 23, the bottom of the cover body 11 is aligned and attached to the top of the casing 23, and the four fixing blocks 17 and the four fixing drums 24 are clamped and fixed, so that the battery protection cover 1 and the casing assembly 2 are conveniently fixed.

As shown in fig. 1-3, the bottom end of the fixed block 17 is fixedly clamped with the inner side of the fixed cylinder 24, the two ends of the top of the cover body 11 are symmetrically and rotatably connected with the handles 16, and the fixed block 17 and the fixed cylinder are convenient for fixing the battery protection cover 1 and the housing assembly 2.

As shown in fig. 1, the bottom of the cover 11 is attached to the top of the housing 23.

The application method and the working principle of the device are as follows: the battery shell with the protection structure consists of a battery protection cover 1 and a shell component 2, when the battery shell is used, the battery component can be placed in a shell 23, the bottom of a cover body 11 is aligned and attached to the top of the shell 23, and four fixing blocks 17 and four fixing cylinders 24 are clamped and fixed, and in addition, bolts are used for fixing; through adding the pressure measuring device 13, the pressure release part 14 and the control board 15 on the top of the cover 11, the control board 15 can control the pressure measuring device 13 and the pressure release part 14, the control board 15 sets the rated value of the detection pressure of the pressure measuring device 13, meanwhile, the pressure measuring device 13 can detect the internal pressure of the battery cell in the outer shell 23, when the pressure is overlarge and reaches the rated value of the pressure, the control board 15 controls the pressure release part 14 to be automatically opened, the pressure release part 14 can automatically and rapidly release pressure, the phenomenon of explosion of the battery shell is prevented, and the working safety of the battery pack is further improved;

simultaneously increase cooling tube 29, inlet tube 25 and outlet pipe 26 in shell subassembly 2 bottom, can be with inlet tube 25 and outlet pipe 26 connection outside cooling tank before using, cooling water in the cooling tank enters into cooling tube 29 through inlet tube 25, cooling tube 29 can take away the majority heat at heating panel 28 and heat dissipation net 30 top, finally the coolant liquid rethread outlet pipe 26 returns to the cooling tank, cooling tube 29 realizes the heat exchange with the group battery, guarantee shell 23's leakproofness simultaneously, improve shell 23 internal battery operational environment's security, simultaneously set up protective housing 21 and energy-absorbing strip 22 in shell 23 bilateral symmetry, protective housing 21 adopts SMC combined material to make this battery case have corrosion-resistant, light in weight and high structural strength's excellent performance, energy-absorbing strip 22 can absorb energy when this battery case receives the collision simultaneously, alleviate the damage degree to the battery case, improve this battery case's protective effect.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model will still fall within the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a battery case with protective structure, its characterized in that, including battery protection cover (1) and shell subassembly (2), the bottom of battery protection cover (1) and the top fixed connection of shell subassembly (2), battery protection cover (1) include lid (11), fixed plate (12), pressure measurement ware (13) and control panel (15), the top of lid (11) and the bottom fixed connection of fixed plate (12), the top fixed mounting of one end and pressure measurement ware (13) of fixed plate (12), just the other end inboard of fixed plate (12) and the bottom fixed connection of control panel (15), the one end fixedly connected with pressure release piece (14) of control panel (15), shell subassembly (2) are including shell (23), arc (27), outlet pipe (26) and cooling tube (29), the both ends symmetry fixedly connected with heating panel (28) of arc (27), the top of heating panel (28) evenly is provided with a plurality of heat dissipation nets (30), the outside of cooling tube (29) is laminated with the bottom of heating panel (28), the one end of outlet pipe (27) is connected with one end of arc (25).

2. The battery case with a protective structure according to claim 1, wherein: the outer side of the heat radiation plate (28) is fixedly connected with the inner side of the shell (23), and two ends of the arc plate (27) are fixedly connected with the bottom of the shell (23).

3. The battery case with a protective structure according to claim 1, wherein: two protecting shells (21) are symmetrically and fixedly connected to two sides of the shell (23), and a plurality of energy absorbing strips (22) are uniformly arranged on the inner side of each protecting shell (21).

4. The battery case with a protective structure according to claim 1, wherein: four fixing barrels (24) are symmetrically arranged on the inner sides of two ends of the shell (23), and four fixing blocks (17) are symmetrically and fixedly connected to two ends of the bottom of the cover body (11).

5. The battery case with a protective structure according to claim 4, wherein: the bottom of the fixed block (17) is fixedly clamped with the inner side of the fixed cylinder (24), and handles (16) are symmetrically and rotatably connected to the two ends of the top of the cover body (11).

6. The battery case with a protective structure according to claim 1, wherein: the bottom of the cover body (11) is attached to the top of the shell (23).