Battery mounting shell

Abstract

The utility model provides a battery mounting shell. The battery mounting shell comprises a shell body and a pressure relief assembly, a pressure relief assembly is arranged on the shell and comprises a filter screen, a telescopic component, a protection component and an elastic component, the filter screen is arranged on the shell in a penetrating mode, the protection component covers the filter screen on the outer side of the shell, and the telescopic component and the elastic component can be matched with each other to drive the protection component to do telescopic motion. According to the utility model, the problems of heat dissipation and pressure relief of the battery can be solved through the mutual matching of the filter screen, the telescopic component, the protection component and the elastic component.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery installation shell. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery), which mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is embedded and de-embedded between the two electrodes: when charging, Li+ is de-embedded from the positive electrode and embedded in the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state, and the opposite is true when discharging; sodium-ion battery is also a secondary battery (rechargeable battery), which mainly relies on the movement of sodium ions between the positive electrode and the negative electrode to work, and its working principle is similar to that of lithium-ion battery.

[0003] Most of the lithium and sodium ion batteries in the prior art are directly installed inside a sealed installation shell. Although this can ensure its sealing and prevent damage from foreign objects, it also results in a lack of pressure relief function during use. Especially when charging, the lithium and sodium ion batteries are prone to explosion due to the high pressure inside, which in turn causes safety hazards. Moreover, when the lithium and sodium ion batteries are working, they are located inside the sealed installation shell, which also makes it difficult to dissipate the heat generated by them in time, resulting in low heat dissipation efficiency and certain limitations. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to solve the heat dissipation and pressure relief problems of the battery.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A battery mounting shell comprises a shell (1) and a pressure relief assembly (3); the shell (1) is provided with a pressure relief assembly (3), the pressure relief assembly (3) comprises a filter (31), a telescopic component (32), a protective component (33), and an elastic component (35); the filter (31) is arranged through the shell (1), the protective component (33) covers the filter (31) outside the shell (1), and the telescopic component (32) and the elastic component (35) can cooperate with each other to drive the protective component (33) to perform telescopic movement.

[0007] Beneficial effect: The heat dissipation and pressure relief problems of the battery can be solved by the cooperation of the filter, the telescopic component, the protective component and the elastic component.

[0008] Furthermore, the shell (1) is arranged with an opening at the top, and an end cover (2) is detachably connected to the top of the shell (1).

[0009] Furthermore, it also comprises a guide cover (4), the guide cover (4) being fixed to the bottom of the interior of the shell (1), and the guide cover (4) being arranged with openings penetrating from top to bottom.

[0010] Beneficial effect: The guide cover can guide and limit the battery cell, making it easier for operators to install the battery cell while ensuring the stability of the battery cell installed inside the shell.

[0011] Furthermore, the cross-sectional shape of the guide cover (4) is set to be an inverted trapezoid.

[0012] Furthermore, the front and rear walls of the housing (1) are both provided with mounting grooves (11), and the filter screen (31) is fixed in the mounting grooves (11).

[0013] Furthermore, the telescopic component (32) is fixed on the inner wall of the shell (1) below the filter screen (31); the telescopic component (32) comprises a vertical plate (321), a mounting plate (322), an expansion airbag (323), and a push plate (324); the vertical plate (321) is provided with two fixed on the inner wall of the shell (1) at intervals; a mounting plate (322) is fixedly connected to a side of the two vertical plates (321) away from the shell (1); an expansion airbag (323) is fixed to a surface of the mounting plate (322); a push plate (324) is fixedly connected to a free side of the expansion airbag (323); the push plate (324) is slidably connected to the two vertical plates (321); and the protective component (33) can be adjusted via the push plate (324).

[0014] Beneficial effect: Through the arrangement of the vertical plate, the mounting plate, the inflatable airbag and the pushing plate, the inflatable airbag can normally adjust the position of the protective component through the pushing plate.

[0015] Furthermore, the expansion airbag (323) is filled with helium.

[0016] Furthermore, the protective component (33) comprises a mounting frame (331) and a shielding plate (332); the mounting frame (331) is arranged in a “mountain” shape; the middle portion of the mounting frame (331) is slidably connected between the filter screen (31) and the telescopic component (32) on the shell (1); the mounting frame (331) is arranged to penetrate the shell (1); one end of the mounting frame (331) located inside the shell (1) is fixed to the pushing plate (324); one end of the mounting frame (331) located outside the shell (1) is fixed with a shielding plate (332); the size of the shielding plate (332) is slightly larger than the size of the filter screen (31); the shielding plate (332) is arranged to cover the filter screen (31).

[0017] Beneficial effect: By providing a mounting frame and a shielding plate, it is convenient to shield and protect the filter, thereby preventing foreign matter from entering the shell and providing a certain degree of protection for the battery cell.

[0018] Furthermore, the pressure relief assembly (3) also includes a limit block (34), and two groups of the limit blocks (34) are provided, which are respectively located at the front and rear sides of the shell (1) close to the baffle plate (332), and each group of the limit blocks (34) is provided with four limit blocks (34), which are respectively located at the four corners of the baffle plate (332), and the baffle plate (332) and the limit blocks (34) are slidably connected.

[0019] Beneficial effect: Through the setting of the limit block, it can play a role of limiting and guiding the baffle plate, and at the same time can play a certain protective role on the baffle plate, preventing foreign objects from fitting closely to the baffle plate and causing obstruction to the baffle plate, ensuring that the two baffle plates can move away from each other normally, thereby ensuring that the filter net can perform normal ventilation and heat dissipation.

[0020] Furthermore, a plurality of elastic components (35) are provided, which are slidably connected to the shell (1) above the filter (31) along the edge of the filter (31); the elastic component (35) comprises a slide bar (351), a mounting block (352), and a spring (353); the slide bar (351) passes through and is slidably mounted on the shell (1); the end of the slide bar (351) located inside the shell (1) is fixed with the mounting block (352); the end of the slide bar (351) located outside the shell (1) is fixed to the baffle plate (332); a spring (353) is wound around the slide bar (351); one end of the spring (353) is fixedly connected to the mounting block (352); and the other end of the spring (353) is fixedly connected to the shell (1).

[0021] Beneficial effect: By arranging the slide bar, the mounting block and the spring, when the inflatable airbag is de-inflated, the two shielding plates can automatically move closer to each other with the cooperation of the slide bar, the mounting block and the spring, thereby improving the safety of the battery cell.

[0022] The advantages of the utility model are:

[0023] The utility model can solve the heat dissipation and pressure relief problems of the battery through the mutual cooperation of the filter screen, the telescopic component, the protective component and the elastic component.

[0024] The utility model can guide and limit the battery core by setting the guide cover, which is convenient for operators to install the battery core and can ensure the stability of the battery core installed inside the shell.

[0025] The utility model arranges the vertical plate, the mounting plate, the expansion airbag and the pushing plate so that the expansion airbag can normally adjust the position of the protective component through the pushing plate.

[0026] The utility model provides a mounting frame and a shielding plate to shield and protect the filter screen, thereby preventing foreign matter from entering the shell and providing a certain degree of protection for the battery core.

[0027] The utility model can play a role of limiting and guiding the shielding plate through the setting of the limit block, and at the same time can play a certain protective role on the shielding plate, preventing foreign objects from closely fitting with the shielding plate and causing obstruction to the shielding plate, ensuring that the two shielding plates can normally move away from each other, thereby ensuring that the filter screen can perform normal ventilation and heat dissipation processing.

[0028] The utility model provides a slide bar, a mounting block and a spring, so that when the inflatable airbag is released from inflation, the two shielding plates can automatically move toward each other under the cooperation of the slide bar, the mounting block and the spring, thereby improving the safety of the battery core. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of a battery mounting case according to a first embodiment of the present utility model;

[0030] Figure 2 It is a partially cutaway stereoscopic view of a battery mounting case (with battery cells installed) of Embodiment 1 of the utility model;

[0031] Figure 3 It is a partially cutaway perspective view of a battery mounting case of Embodiment 1 of the present utility model;

[0032] Figure 4 This is a three-dimensional diagram of a telescopic component in a battery mounting shell according to a first embodiment of the utility model;

[0033] Figure 5 for Figure 3 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Embodiment 1

[0036] like Figure 1 , Figure 2As shown, the present embodiment provides a battery mounting shell, comprising a shell 1, an end cover 2, a pressure relief assembly 3, and a guide cover 4; the shell 1 is set with a top opening, the top of the shell 1 is detachably connected to the end cover 2, and the bottom of the shell 1 is fixed with a guide cover 4, the guide cover 4 is set with an opening extending through the top and bottom, and the cross-sectional shape of the guide cover 4 is set to an inverted trapezoid. By setting the guide cover 4, the battery cell 5 can be guided and limited, which is convenient for the operator to install the battery cell 5 while ensuring the stability of the battery cell 5 installed inside the shell 1. The pressure relief assembly 3 is provided on the front and rear walls of the shell 1.

[0037] like Figure 1 , Figure 3 , Figure 4 As shown, the pressure relief assembly 3 includes a filter screen 31, a telescopic component 32, a protective component 33, a limit block 34, and an elastic component 35; the front and rear walls of the shell 1 are provided with mounting grooves 11, the filter screen 31 is fixed in the mounting groove 11, and the telescopic component 32 is fixed below the filter screen 31 on the inner wall of the shell 1; the telescopic component 32 includes a vertical plate 321, a mounting plate 322, an expansion airbag 323, and a push plate 324. The vertical plate 321 is provided with two intervals fixed on the inner wall of the shell 1, and a mounting plate 322 is fixedly connected to the side away from the shell 1 between the two vertical plates 321, and the mounting plate 322 is fixedly connected to the side away from the shell 1. An inflatable airbag 323 is fixed on the surface, and a pushing plate 324 is fixedly connected to the free side of the inflatable airbag 323, and the protective component 33 can be adjusted through the pushing plate 324; the inflatable airbag 323 is filled with helium; the pushing plate 324 and the mounting plate 322 are respectively located at the front and rear sides of the inflatable airbag 323, and the pushing plate 324 and the two vertical plates 321 are slidably connected. By arranging the pushing plate 324 and the mounting plate 322 at the front and rear sides of the inflatable airbag 323 respectively, the inflatable airbag 323 can normally adjust the position of the protective component 33 through the pushing plate 324.

[0038] like Figure 3 As shown, the protective component 33 includes a mounting frame 331 and a shielding plate 332. The mounting frame 331 is arranged in a "mountain" shape. The middle part of the mounting frame 331 is slidably connected between the filter screen 31 and the telescopic component 32 on the shell 1. The mounting frame 331 is arranged through the shell 1. One end of the mounting frame 331 located inside the shell 1 is fixed on the pushing plate 324. The end of the mounting frame 331 located outside the shell 1 is fixed with a shielding plate 332. The size of the shielding plate 332 is slightly larger than the size of the filter screen 31. The shielding plate 332 is arranged to cover the filter screen 31. By arranging the mounting frame 331 and the shielding plate 332, it is convenient to shield and protect the filter screen 31, thereby preventing foreign matter from entering the shell 1, and providing a certain protection for the battery cell 5.

[0039] like Figure 3As shown, there are two groups of limit blocks 34, which are respectively located at the front and rear sides of the shell 1 near the baffle plate 332. Each group of limit blocks 34 is provided with four limit blocks 34, which are respectively located at the four corners of the baffle plate 332. The baffle plate 332 and the limit blocks 34 are slidably connected. The cross-sectional shape of the limit blocks 34 is set to "L". The limit blocks 34 can play a role in limiting and guiding the baffle plate 332, and at the same time can play a certain protective role on the baffle plate 332 to prevent foreign objects from fitting closely to the baffle plate 332 and causing obstruction to the baffle plate 332, thereby ensuring that the two baffle plates 332 can move away from each other normally, thereby ensuring that the filter 31 can perform normal ventilation and heat dissipation treatment.

[0040] like Figure 3 , Figure 5 As shown, there are multiple elastic components 35, which are slidably connected to the shell 1 above the filter 31 along the edge of the filter 31; the elastic component 35 includes a slide bar 351, a mounting block 352, and a spring 353. The slide bar 351 passes through and is slidably installed on the shell 1, one end of the slide bar 351 located inside the shell 1 is fixed with the mounting block 352, and the other end of the slide bar 351 located outside the shell 1 is fixed to the baffle 332, and a spring 353 is wound around the slide bar 351, one end of the spring 353 is fixedly connected to the mounting block 352, and the other end of the spring 353 is fixedly connected to the shell 1; by arranging the slide bar 351, the mounting block 352 and the spring 353, when the expansion airbag 323 is released from expansion, the two baffles 332 can automatically move closer to each other with the cooperation of the slide bar 351, the mounting block 352 and the spring 353, thereby improving the safety of the battery cell 5.

[0041] When the operator uses the installation shell to install the battery cell 5, when the battery cell 5 is working and generating serious heat, the helium inside the two expansion airbags 323 is heated and expanded, so that the two expansion airbags 323 push the two push plates 324 to move away from each other, and the two push plates 324 push the two shielding plates 332 to move away from each other through the two mounting frames 331, so that the two filter screens 31 can leak out, and the air inside the shell 1 circulates, so that the battery cell 5 dissipates heat; because the two shielding plates 332 move away from each other, the spring 353 is squeezed by the slide bar 351 and the mounting block 352, when the battery cell 5 stops working, or the temperature is lowered by heat dissipation, the helium inside the expansion airbag 323 shrinks, and the squeezing of the push plate 324 is released, and under the cooperation of the slide bar 351, the mounting block 352 and the spring 353, the two shielding plates 332 can automatically move towards each other, and when the two shielding plates 332 are tightly fitted with the two filter screens 31, the filter screens 31 are shielded;

[0042] When the battery cell 5 is damaged and needs to be replaced during long-term use, the operator directly disassembles the end cover 2, opens the end cover 2, takes out the battery cell 5, and replaces it with a new battery cell 5. When the operator aligns the new battery cell 5 with the inside of the shell 1 for installation, the guide cover 4 can guide the battery cell 5. After the battery cell 5 is installed in the guide cover 4, the end cover 2 is installed to the top of the shell 1 to complete its installation.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery mounting shell, characterized in that: It comprises a housing (1) and a pressure relief assembly (3); The housing (1) is provided with a pressure relief component (3), the pressure relief component (3) comprising a filter (31), a telescopic component (32), a protective component (33), and an elastic component (35); the filter (31) is arranged through the housing (1); the protective component (33) covers the filter (31) outside the housing (1); the telescopic component (32) and the elastic component (35) can cooperate with each other to drive the protective component (33) to perform telescopic movement.

2. A battery mounting shell according to claim 1, characterized in that: It also comprises an end cover (2); the shell (1) is arranged with an opening at the top; the top of the shell (1) is detachably connected to the end cover (2).

3. A battery mounting shell according to claim 1, characterized in that: It also comprises a guide cover (4), the guide cover (4) being fixed to the bottom of the interior of the shell (1), and the guide cover (4) being arranged with openings penetrating from top to bottom.

4. A battery mounting shell according to claim 3, characterized in that: The cross-sectional shape of the guide cover (4) is set to be an inverted trapezoid.

5. A battery mounting shell according to claim 1, characterized in that: The housing (1) has mounting grooves (11) on its front and rear walls, and the filter screen (31) is fixed in the mounting grooves (11).

6. A battery mounting shell according to claim 1, characterized in that: The telescopic component (32) is fixed on the inner wall of the shell (1) below the filter screen (31); the telescopic component (32) comprises a vertical plate (321), a mounting plate (322), an expansion airbag (323), and a push plate (324); the vertical plate (321) is provided with two vertical plates (321) fixed on the inner wall of the shell (1) at intervals; a mounting plate (322) is fixedly connected to a side of the two vertical plates (321) away from the shell (1); an expansion airbag (323) is fixed to a surface of the mounting plate (322); a push plate (324) is fixedly connected to a free side of the expansion airbag (323); the push plate (324) is slidably connected to the two vertical plates (321); and the protective component (33) can be adjusted via the push plate (324).

7. A battery mounting shell according to claim 6, characterized in that: The expansion airbag (323) is filled with helium.

8. A battery mounting shell according to claim 1, characterized in that: The protective component (33) comprises a mounting frame (331) and a shielding plate (332); the mounting frame (331) is arranged in a "mountain" shape; the middle portion of the mounting frame (331) is slidably connected between the filter screen (31) and the telescopic component (32) on the shell (1); the mounting frame (331) is arranged to penetrate the shell (1); one end of the mounting frame (331) located inside the shell (1) is fixed to the push plate (324); one end of the mounting frame (331) located outside the shell (1) is fixed with a shielding plate (332); the size of the shielding plate (332) is slightly larger than the size of the filter screen (31); the shielding plate (332) is arranged to cover the filter screen (31).

9. A battery mounting shell according to claim 8, characterized in that: The pressure relief assembly (3) further comprises a limit block (34), wherein two groups of the limit blocks (34) are respectively located at the front and rear sides of the housing (1) close to the baffle plate (332), each group of the limit blocks (34) comprises four limit blocks (34) respectively located at four corners of the baffle plate (332), and the baffle plate (332) and the limit blocks (34) are slidably connected.

10. A battery mounting shell according to claim 1, characterized in that: A plurality of elastic components (35) are provided, and are slidably connected to the housing (1) above the filter (31) along the edge of the filter (31); the elastic component (35) comprises a slide bar (351), a mounting block (352), and a spring (353); the slide bar (351) penetrates and is slidably mounted on the housing (1); the end of the slide bar (351) located inside the housing (1) is fixed with the mounting block (352); the end of the slide bar (351) located outside the housing (1) is fixed to the shielding plate (332); a spring (353) is wound around the slide bar (351); one end of the spring (353) is fixedly connected to the mounting block (352); and the other end of the spring (353) is fixedly connected to the housing (1).

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