An inverted battery cover and an inverted battery

Abstract

This utility model belongs to the field of battery technology, specifically disclosing an inverted battery cover and an inverted battery. The inverted battery cover includes a cover body and a lower plastic assembly. An explosion-proof valve is integrated on the cover body. The lower plastic assembly includes an insulating plastic component and a bracket. The insulating plastic component is disposed on the side of the cover body near the battery cell. The bracket is detachably installed on the insulating plastic component and is located between the cover body and the insulating plastic component. Along a first direction, the projection of the bracket on the cover body at least partially coincides with the projection of the explosion-proof valve on the cover body. The melting point of the bracket is greater than or equal to 300°C. After the insulating plastic component melts and fails, the bracket can withstand high temperatures without deformation and continue to support the battery cell, thereby preventing the battery cell from contacting the explosion-proof valve on the cover body, ensuring that the venting function of the explosion-proof valve is not affected, and providing good safety performance. This utility model provides an inverted battery, including the above-mentioned inverted battery cover.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an inverted battery cover and an inverted battery. Background Technology

[0002] Power batteries, as a clean energy source, are widely used in new energy vehicles. Generally, new energy vehicles are equipped with battery modules, which contain battery packs. Each battery pack contains multiple power batteries, and each power battery contains at least one cell. As the requirements for fast charging performance, driving range, and safety of power batteries in new energy vehicles continue to increase, battery inversion technology has received widespread attention due to its unique safety advantages. This technology involves inverting the power batteries within the battery pack. The battery casing, cells, tabs, and battery cover are arranged sequentially along the direction of gravity, with the weight of the cells ultimately borne by the battery cover. The battery cover faces the bottom of the battery pack and is equipped with an explosion-proof valve. In the event of thermal runaway, high-temperature, high-pressure gases can be rapidly discharged downwards through the explosion-proof valve on the battery cover, the pressure relief valve at the bottom of the battery pack, and the exhaust channel, effectively protecting the safety of the passenger compartment.

[0003] However, the lower insulating plastic component of the battery cover inside the power battery is currently generally made of PP material, which has a low melting point (approximately 160°C). In the early stages of thermal runaway of the power battery, the lower insulating plastic component softens and melts when heated, causing the battery cells inside the power battery to fall under the influence of gravity. This could directly impact the explosion-proof valve (the weakest part of the power battery) on the battery cover, affecting the venting function of the explosion-proof valve and exacerbating the risk of thermal runaway. Utility Model Content

[0004] The purpose of this utility model is to provide an inverted battery cover and an inverted battery, wherein the plastic component under the battery has a support with excellent high temperature resistance, which can maintain the integrity of the support structure under thermal runaway conditions, effectively preventing the battery cell from falling and impacting the explosion-proof valve, thus ensuring good safety.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, this utility model provides an inverted battery cover, comprising:

[0007] The cover plate body, on which an explosion-proof valve is integrated;

[0008] The lower plastic assembly includes an insulating plastic part and a bracket. The insulating plastic part is disposed on one side of the cover plate body, and the bracket is detachably installed on the insulating plastic part and is located between the cover plate body and the insulating plastic part. Along a first direction, the projection of the bracket on the cover plate body at least partially coincides with the projection of the explosion-proof valve on the cover plate body.

[0009] The melting point of the support is greater than or equal to 300°C.

[0010] Optionally, the insulating plastic part includes a plastic body, the plastic body is provided with a first protrusion, the first protrusion is provided with a mounting groove on the side facing the cover plate body, the bottom wall of the mounting groove is provided with a spring-loaded buckle, and the bracket includes a fixing part, the fixing part being engaged with the spring-loaded buckle.

[0011] Optionally, the bracket includes multiple U-shaped support plates that are separately arranged and spaced apart. The middle section of each U-shaped support plate is the fixing part, and the two ends of each U-shaped support plate are support ears. The support ears abut against the end face of the cover plate body facing the lower plastic component.

[0012] Optionally, the bottom wall of the mounting groove is provided with a plurality of vent holes; along the first direction, the projection of the vent holes on the cover plate body coincides at least partially with the projection of the explosion-proof valve on the cover plate body.

[0013] Optionally, the insulating plastic part includes two support portions, which are respectively connected to both ends of the plastic part body along its length, and the support portions are used to abut against the battery cell.

[0014] Optionally, the insulating plastic part includes a first positioning post, which is disposed on the plastic part body and located in the circumferential direction of the mounting groove. The cover plate body is provided with a first positioning hole, and the first positioning post is inserted into the first positioning hole.

[0015] And / or, the insulating plastic part includes a second positioning post, the second positioning post is disposed on the support part, the cover plate body is provided with a second positioning hole, and the second positioning post is inserted into the second positioning hole.

[0016] Optionally, the support is made of a high-melting-point metal or ceramic;

[0017] The insulating plastic part is made of one of polypropylene, polyethylene, or polyvinyl chloride.

[0018] Optionally, the cover plate body is provided with a first mounting hole, and the explosion-proof valve is installed in the first mounting hole.

[0019] Optionally, the inverted battery cover includes a terminal post, an upper plastic part, and a connecting block. The terminal post passes through the insulating plastic part, the cover body, the upper plastic part, and the connecting block and is then riveted to the connecting block.

[0020] On the other hand, this utility model provides an inverted battery, including the inverted battery cover of any of the above-mentioned solutions.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model provides an inverted battery cover, including a cover body and a lower plastic assembly. An explosion-proof valve is integrated into the cover body. The lower plastic assembly includes an insulating plastic component and a bracket. The insulating plastic component is disposed on the side of the cover body closest to the battery cell. The bracket is detachably mounted on the insulating plastic component and is located between the cover body and the insulating plastic component. Along a first direction, the projection of the bracket onto the cover body at least partially coincides with the projection of the explosion-proof valve onto the cover body. The melting point of the bracket is greater than or equal to 300°C. After the insulating plastic component melts and fails, the bracket can withstand high temperatures without deformation, maintaining its overall structural integrity. The bracket can continue to support the battery cell, thereby preventing the battery cell from contacting the explosion-proof valve integrated on the cover body, ensuring that the venting function of the explosion-proof valve is not affected, and providing good safety performance.

[0023] This invention provides an inverted battery. When the battery cell is inverted and nearing thermal runaway, the insulating plastic parts in the lower plastic assembly soften due to heat, while the high-temperature resistant support can still maintain structural strength and continuously support the battery cell. This effectively prevents the battery cell from falling and directly touching the explosion-proof valve, blocking heat conduction and pressure surges caused by contact, thereby avoiding the aggravation of thermal runaway in the inverted battery and significantly improving the safety and reliability of the inverted battery. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the inverted battery cover provided in this embodiment of the utility model;

[0025] Figure 2 This is an exploded view of the inverted battery cover provided in the embodiment of this utility model;

[0026] Figure 3 This is an exploded view of the inverted battery cover provided in this embodiment of the present invention from another perspective;

[0027] Figure 4 This is a bottom view of the inverted battery cover provided in this embodiment of the utility model;

[0028] Figure 5 yes Figure 4 Cross-sectional view of section AA;

[0029] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the lower plastic component provided in the embodiment of this utility model;

[0031] Figure 8 yes Figure 7A magnified view of a section at point C.

[0032] In the picture:

[0033] 100. Cover plate body; 110. First positioning hole; 120. Second positioning hole; 130. First mounting hole; 140. Second mounting hole; 150. First limiting groove; 160. Second limiting groove;

[0034] 200. Explosion-proof valve;

[0035] 300. Insulating plastic part; 310. Plastic part body; 311. First protrusion; 3111. Mounting groove; 3112. Vent hole; 312. Spring-loaded snap fastener; 313. First positioning post; 314. Second protrusion; 3141. Third mounting hole; 315. Third limiting groove; 320. Support part; 321. Groove; 322. Second positioning post;

[0036] 400. Bracket; 410. U-shaped support plate; 411. Fixing part; 412. Support ear;

[0037] 500, pole piece; 510, plate body; 520, column body;

[0038] 600. Upper plastic part; 610. Fourth mounting hole; 620. Receiving groove;

[0039] 700, Connecting block; 710, Fifth mounting hole; 800, Seal; 900, Protective film. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0044] like Figures 1-3 As shown, this embodiment provides an inverted battery cover. After assembly with the housing, the inverted battery cover forms a space for placing the battery cells. The inverted battery cover, housing, and battery cells constitute an inverted battery. By using this inverted battery cover, the battery cells can be well supported, providing excellent fixation and support.

[0045] Specifically, the inverted battery cover includes a cover body 100 and a lower plastic assembly. An explosion-proof valve 200 is integrated on the cover body 100. The lower plastic assembly includes an insulating plastic component 300 and a bracket 400. The insulating plastic component 300 is located on the side of the cover body 100 closest to the battery cell. The bracket 400 is detachably mounted on the insulating plastic component 300 and is located between the cover body 100 and the insulating plastic component 300. Along a first direction, the projection of the bracket 400 onto the cover body 100 at least partially coincides with the projection of the explosion-proof valve 200 onto the cover body 100. The aforementioned first direction is... Figure 1 The Z-axis direction is shown in the diagram. It should be noted that in this embodiment, the melting point of the bracket 400 is greater than or equal to 300°C. Therefore, in the event of thermal runaway of the inverted battery, the bracket 400 in the inverted battery cover can withstand high temperatures without deformation, and its overall structure remains intact. Even after the insulating plastic part 300 softens, deforms, or even melts, the battery cell can continue to be supported by the bracket 400, thereby preventing the battery cell from pressing against the explosion-proof valve 200 integrated on the cover body 100. This ensures that the venting function of the explosion-proof valve 200 is not affected, improving the safety performance of the inverted battery.

[0046] Optionally, in this embodiment, the support 400 is made of a high-melting-point metal or ceramic, which can withstand temperatures above 300°C without deformation, exhibits good high-temperature resistance (can withstand temperatures above 300°C), and possesses high mechanical strength, maintaining structural integrity at high temperatures and effectively supporting the battery cell to prevent it from falling and impacting the explosion-proof valve 200. Furthermore, the insulating plastic component 300 is made of one of polypropylene (PP), polyethylene (PE), or polyvinyl chloride (PVC), which has good insulation properties, ensuring insulation isolation between the battery cell and the cover plate body 100, resulting in superior electrical safety performance.

[0047] See Figures 4-8 In this embodiment, the insulating plastic part 300 includes a plastic body 310. The plastic body 310 has a first protrusion 311. The side of the first protrusion 311 facing the cover plate body 100 has a mounting groove 3111, the opening of which faces the cover plate body 100. A spring-loaded snap-fit ​​312 is provided on the bottom wall of the mounting groove 3111. The bracket 400 includes a fixing part 411, which engages with the spring-loaded snap-fit ​​312. Through the cooperation of the fixing part 411 and the spring-loaded snap-fit ​​312, the bracket 400 is detachably mounted on the plastic body 310 of the insulating plastic part 300, achieving rapid and precise fixation and significantly improving assembly efficiency. After the bracket 400 and the insulating plastic part 300 are assembled, the insulating plastic part 300 and the cover plate body 100 are tightly connected, forming an integrated inverted battery cover plate, effectively simplifying the assembly process and enhancing structural stability. More preferably, the bracket 400 is recessed into the mounting groove 3111, thereby saving space and facilitating the reduction of the height of the inverted battery cover along the first direction, thus achieving a lightweight and thin design for the inverted battery cover.

[0048] As an alternative, the bracket 400 in this embodiment includes a plurality of separately arranged U-shaped support plates 410, which are spaced apart along a second direction, and each U-shaped support plate 410 extends along a third direction. The second direction is... Figure 4 The X-axis direction shown is the third direction. Figure 4The Y-axis direction is shown in the diagram. The middle section of the U-shaped support plate 410 is the aforementioned fixing part 411, and the two ends of the U-shaped support plate 410 are support ears 412. The two support ears 412 extend along the first direction toward the direction of the cover plate body 100, and the support ears 412 abut against the end face of the cover plate body 100 facing the lower plastic component. Thus, even after the insulating plastic part 300 melts and fails, the multiple U-shaped support plates 410 of the bracket 400 can still provide good support for the battery cell, preventing the battery cell from impacting or blocking the pressure relief channel of the explosion-proof valve 200, thus affecting the venting function of the explosion-proof valve 200. In addition, by setting multiple U-shaped support plates 410, the battery cell can also be supported at multiple positions along the second direction, making the force on the battery cell more balanced and the support more stable. Furthermore, the design of multiple U-shaped support plates 410 also makes the assembly and disassembly of the bracket 400 more flexible and convenient.

[0049] Of course, in other embodiments, the bracket 400 can also be an integral structure, with a fixing part 411 for cooperating with the spring-loaded buckle 312 and a support ear 412 for abutting against the cover plate body 100, which will not be described in detail here.

[0050] Furthermore, the bottom wall of the mounting groove 3111 is provided with multiple vent holes 3112. Along the first direction, the projection of the vent holes 3112 on the cover plate body 100 at least partially coincides with the projection of the explosion-proof valve 200 on the cover plate body 100. Through the arrangement of the vent holes 3112, the spaces on both sides of the insulating plastic part 300 along the first direction are connected. When the inverted battery experiences thermal runaway, the high-temperature and high-pressure gas inside the casing can pass through the vent holes 3112 and act directly on the explosion-proof valve 200, causing the explosion-proof valve 200 to open and release pressure, thereby avoiding the safety risk of explosion.

[0051] See also Figure 2 , Figure 3 and Figure 8 The insulating plastic part 300 includes two support portions 320, which are respectively connected to both ends of the plastic part body 310 in the length direction (i.e., the second direction). The support portions 320 are used to abut against the battery cell. This allows the insulating plastic part 300 to provide good support and fixation for the battery cell before it melts and fails.

[0052] Furthermore, the insulating plastic part 300 includes a plurality of first positioning posts 313, which are disposed on the end face of the plastic part body 310 facing the cover plate body 100, and are located circumferentially in the mounting groove 3111. The cover plate body 100 is provided with a plurality of first positioning holes 110, and the first positioning posts 313 correspond one-to-one with the first positioning holes 110, with each first positioning post 313 inserted into a first positioning hole 110. The insulating plastic part 300 also includes second positioning posts 322, which are disposed on the support part 320. The support part 320 is hollow inside to form a groove 321, the opening of which also faces the cover plate body 100. A plurality of second positioning posts 322 are provided on the bottom wall of the groove 321. The cover plate body 100 is provided with multiple second positioning holes 120, and each second positioning post 322 corresponds to one of the second positioning holes 120, with each second positioning post 322 inserted into one second positioning hole 120. Through the cooperation of the first positioning post 313 with the first positioning hole 110, and the cooperation of the second positioning post 322 with the second positioning hole 120, the precise positioning between the insulating plastic part 300 and the cover plate body 100 is achieved, resulting in a high assembly yield and assembly efficiency.

[0053] Optionally, the cover plate body 100 is provided with a first mounting hole 130, and the explosion-proof valve 200 is installed in the first mounting hole 130. The first mounting hole 130 is aligned with the vent hole 3112 on the insulating plastic part 300 along the first direction, thereby facilitating the passage of gas, which is conducive to achieving rapid venting and improving the safety performance of the inverted battery.

[0054] The inverted battery cover includes a terminal post 500, an upper plastic component 600, and a connecting block 700. The upper plastic component 600 is located on the side of the cover body 100 opposite to the lower plastic assembly, and the connecting block 700 is located on the side of the upper plastic component 600 opposite to the cover body 100. The post portion 520 of the terminal post 500 passes through the third mounting hole 3141 of the insulating plastic component 300, the second mounting hole 140 of the cover body 100, the fourth mounting hole 610 of the upper plastic component 600, and the fifth mounting hole 710 of the connecting block 700, and is then riveted to the connecting block 700. The insulating plastic component 300 and the upper plastic component 600 insulate the terminal post 500 from the cover body 100, and the upper plastic component 600 insulates the connecting block 700 from the cover body 100.

[0055] Optionally, a first limiting groove 150 is provided on the end face of the cover plate body 100 away from the battery cell. The bottom of the upper plastic part 600 is embedded in the first limiting groove 150. A receiving groove 620 is provided on the side of the upper plastic part 600 away from the cover plate body 100. The connecting block 700 is at least partially embedded in the receiving groove 620. Through the cooperation between the first limiting groove 150 and the upper plastic part 600, and the cooperation between the connecting block 700 and the receiving groove 620, precise positioning between the cover plate body 100 and the upper plastic part 600, and between the connecting block 700 and the upper plastic part 600, can be achieved, which is beneficial to improving the assembly yield and assembly efficiency. Furthermore, a second limiting groove 160 is provided on the end face of the cover plate body 100 facing the battery cell side, and a second protrusion 314 is provided on the plastic body 310 of the insulating plastic part 300. The second protrusion 314 extends into the second limiting groove 160 and cooperates with the groove wall of the second limiting groove 160. This achieves precise positioning between the cover plate body 100 and the insulating plastic part 300, further improving the assembly yield and assembly efficiency between the cover plate body 100 and the insulating plastic part 300. The third mounting hole 3141 is located on the second protrusion 314 of the insulating plastic part 300.

[0056] Furthermore, the second protrusion 314 on the plastic body 310 of the insulating plastic part 300 can be formed by stamping. When the second protrusion 314 is formed, a third limiting groove 315 is formed on the opposite side of the second protrusion 314 on the plastic body 310. The plate portion 510 of the pole post 500 is at least partially embedded in the third limiting groove 315, realizing precise positioning between the pole post 500 and the insulating plastic part 300, so that the post portion 520 of the pole post 500 can be smoothly riveted to the connecting block 700, resulting in a high assembly yield.

[0057] The inverted battery cover includes a seal 800, which is sleeved on the post portion 520 of the terminal post 500. The seal 800 seals the gap between the cover body 100 and the terminal post 500, ensuring good sealing performance of the inverted battery cover.

[0058] Optionally, the inverted battery cover also includes a protective film 900. The protective film 900 is adhered to the cover body 100 circumferentially around the first mounting hole 130, and the protective film 900 is located on the side of the cover body 100 opposite to the lower plastic assembly. The explosion-proof valve 200 is installed on the side of the cover body 100 near the lower plastic assembly. The protective film 900 improves the protection of the explosion-proof valve 200, preventing it from being bumped during manufacturing, which could lead to unstable opening pressure or failure of the explosion-proof valve 200, thus improving the reliability of the explosion-proof valve 200.

[0059] This embodiment also provides an inverted battery, including a casing, a battery cell, and the aforementioned inverted battery cover. An opening is provided on one side of the casing, through which the battery cell is installed inside the casing. The cover body 100 of the inverted battery cover is welded to the opening of the casing, thereby forming a closed accommodating space between the casing and the inverted battery cover, within which the battery cell is located. A lower plastic assembly in the inverted battery cover provides good support for the battery cell. Multiple inverted batteries can be grouped together to form a battery pack. The inverted battery cover of the inverted battery faces the bottom wall of the battery pack housing.

[0060] Due to the presence of the support 400 in the lower plastic assembly, when any inverted battery experiences thermal runaway or is close to thermal runaway, the insulating plastic component 300 in the lower plastic assembly softens due to heat, while the high-temperature resistant support 400 can still maintain its structural strength and continue to support the battery cell. This effectively prevents the battery cell from falling and directly contacting the explosion-proof valve 200, blocking heat conduction and pressure surges caused by contact, thereby avoiding the aggravation of thermal runaway and significantly improving the safety and reliability of the inverted battery.

[0061] As an optional solution, the inverted battery in this embodiment is a prismatic battery, with two terminals 500 integrated on its cover body 100. One terminal 500 is connected to the positive terminal of the battery cell, and the other terminal 500 is connected to the negative terminal of the battery cell. Correspondingly, two upper plastic parts 600, two connecting blocks 700, and two sealing parts 800 are also provided. The cover body 100 is provided with two second mounting holes 140, and the plastic body 310 is provided with two third mounting holes 3141.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An inverted battery cover plate, characterized by, include: The cover plate body (100) has an explosion-proof valve (200) integrated on it; The lower plastic assembly includes an insulating plastic part (300) and a bracket (400). The insulating plastic part (300) is disposed on one side of the cover plate body (100), and the bracket (400) is detachably mounted on the insulating plastic part (300) and the bracket (400) is located between the cover plate body (100) and the insulating plastic part (300). Along a first direction, the projection of the bracket (400) on the cover plate body (100) at least partially coincides with the projection of the explosion-proof valve (200) on the cover plate body (100). The melting point of the bracket (400) is greater than or equal to 300°C.

2. The inverted battery cover plate of claim 1, wherein, The insulating plastic part (300) includes a plastic body (310), the plastic body (310) is provided with a first protrusion (311), the first protrusion (311) is provided with a mounting groove (3111) on the side facing the cover plate body (100), the bottom wall of the mounting groove (3111) is provided with a spring-loaded buckle (312), and the bracket (400) includes a fixing part (411), the fixing part (411) is engaged with the spring-loaded buckle (312).

3. The inverted battery cover plate of claim 2, wherein, The bracket (400) includes a plurality of U-shaped support plates (410) arranged separately, the plurality of U-shaped support plates (410) being spaced apart, the middle section of the U-shaped support plate (410) being the fixing part (411), and the two ends of the U-shaped support plate (410) being support ears (412), the support ears (412) abutting against the end face of the cover plate body (100) facing the lower plastic assembly.

4. The inverted battery cover plate of claim 2, wherein, The mounting groove (3111) has a plurality of vent holes (3112) on its bottom wall; along the first direction, the projection of the vent hole (3112) on the cover plate body (100) at least partially overlaps with the projection of the explosion-proof valve (200) on the cover plate body (100).

5. The inverted battery cover plate of claim 2, wherein, The insulating plastic part (300) includes two support portions (320), which are respectively connected to both ends of the plastic part body (310) in the length direction. The support portions (320) are used to abut against the battery cell.

6. The inverted battery cover plate of claim 5, wherein, The insulating plastic part (300) includes a first positioning post (313), which is disposed on the plastic part body (310) and is located in the circumferential direction of the mounting groove (3111). The cover plate body (100) is provided with a first positioning hole (110), and the first positioning post (313) is inserted into the first positioning hole (110). And / or, the insulating plastic part (300) includes a second positioning post (322), the second positioning post (322) is disposed on the support part (320), the cover plate body (100) is provided with a second positioning hole (120), and the second positioning post (322) is inserted into the second positioning hole (120).

7. The inverted battery cover plate of claim 1, wherein, The support (400) is made of high-melting-point metal or ceramic; The insulating plastic part (300) is made of one of polypropylene, polyethylene, or polyvinyl chloride.

8. The inverted battery cover plate of claim 1, wherein, The cover plate body (100) is provided with a first mounting hole (130), and the explosion-proof valve (200) is installed in the first mounting hole (130).

9. The inverted battery cover plate of claim 1, wherein, The inverted battery cover includes a terminal post (500), an upper plastic part (600), and a connecting block (700). The terminal post (500) passes through the insulating plastic part (300), the cover body (100), the upper plastic part (600), and the connecting block (700) and is then riveted to the connecting block (700).

10. An inverted battery, characterized by The inverted battery cover includes any one of claims 1-9.

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