Battery cover plate and battery monomer

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery cover plate and a battery monomer. The battery cover plate comprises a cover plate sheet, a pole, an aluminum block and upper plastic. The cover plate sheet is provided with a mounting hole and a clamping groove, and the pole penetrates through the mounting hole. And the aluminum block is positioned on one side, deviating from the battery cell, of the cover plate sheet and is sleeved and connected to the pole. The upper plastic covers the side wall of the aluminum block and the side, close to the cover plate sheet, of the aluminum block. A stand column and a sinking groove are arranged on the side, close to the cover plate piece, of the upper plastic, the sinking groove extends in the circumferential direction of the stand column and is arranged in a closed-loop mode, the stand column can be inserted into the clamping groove, the sinking groove can avoid protrusions on the periphery of the clamping groove in the cover plate piece, and then the problem that the height of the aluminum block is out of tolerance under the condition that the thickness of the upper plastic and the thickness of the aluminum block deviate is solved. The battery monomer comprises a battery cell, a shell and the battery cover plate, the battery cell is positioned in the shell, the battery cover plate covers the opening of the shell, and the safety performance of the battery monomer is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery cover plate and battery monomer. BACKGROUND

[0002] The battery cover plate usually includes light aluminum sheet, pole, aluminum block and upper plastic. Among them, the light aluminum sheet is provided with mounting hole, the pole is arranged in the mounting hole, the aluminum block is connected with the pole sleeve, the upper plastic is covered on the aluminum block, the light aluminum sheet is provided with clamping groove, the upper plastic is provided with stand column, when the light aluminum sheet is connected with the upper plastic, the stand column is inserted in the clamping groove to limit the relative movement of the upper plastic and the light aluminum sheet. But because the light aluminum sheet is extruded, the clamping groove is slightly convex (generally, the slight convex is 0.04mm-0.05mm higher than the surface of the light aluminum sheet), if the thickness of the upper plastic and the aluminum block is deviated, the cumulative tolerance of the light aluminum sheet after assembling with the upper plastic and the aluminum block will cause the height of the aluminum block to be out of tolerance.

[0003] Therefore, it is urgent to provide a battery cover plate and battery monomer to solve the above problems. UTILITY MODEL CONTENTS

[0004] The first purpose of the utility model is to provide a battery cover plate, which can avoid the problem of aluminum block height out of tolerance caused by the thickness deviation of the upper plastic and the aluminum block.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The battery cover plate comprises:

[0007] The cover plate sheet is provided with mounting hole and clamping groove;

[0008] The pole is arranged in the mounting hole;

[0009] The aluminum block is located on the side of the cover plate sheet away from the battery cell and is connected with the pole sleeve;

[0010] The upper plastic is covered on the side wall of the aluminum block and the side of the aluminum block close to the cover plate sheet, the side of the upper plastic close to the cover plate sheet is provided with stand column and sink groove, the sink groove extends along the circumference of the stand column and is arranged in a closed loop, the stand column can be inserted into the clamping groove, and the sink groove can avoid the convex on the outer periphery of the clamping groove on the cover plate sheet.

[0011] As an optional technical scheme of the battery cover plate, the aluminum block is riveted with the pole.

[0012] As an optional technical scheme of the battery cover plate, the groove depth of the sink groove is 0.05mm-0.08mm.

[0013] As an optional technical scheme of the battery cover plate, the distance from the side wall of the sink to the outer wall of the column is 0.5mm-0.8mm.

[0014] As an optional technical scheme of the battery cover plate, the column is cylindrical, and the sink is an annular groove.

[0015] As an optional technical scheme of the battery cover plate, the number of the columns is multiple, and the multiple columns are arranged at intervals near the periphery of the upper plastic edge.

[0016] As an optional technical scheme of the battery cover plate, the pole includes a base plate and a column body, one end of the column body is connected to the base plate, the other end of the column body is sequentially provided with the mounting hole and the aluminum block, and the base plate is abutted to the cover plate near the side of the battery cell.

[0017] As an optional technical scheme of the battery cover plate, the battery cover plate further includes a sealing ring, the sealing ring is sleeved on the column body, part of the sealing ring is clamped between the column body and the mounting hole wall, and part of the sealing ring is clamped between the cover plate and the base plate.

[0018] As an optional technical scheme of the battery cover plate, the battery cover plate further includes a lower plastic, the lower plastic is attached to the side of the cover plate near the battery cell, the pole is provided in the lower plastic, and the base plate is abutted to the side of the lower plastic near the battery cell.

[0019] The second purpose of the utility model is to provide a battery monomer, which is high in safety.

[0020] To achieve this purpose, the utility model adopts the following technical scheme:

[0021] The battery monomer comprises a battery cell, a shell and the above-mentioned battery cover plate, the battery cell is located in the shell, and the battery cover plate is arranged at the opening of the shell.

[0022] The utility model has the advantages of:

[0023] The battery cover plate provided by the utility model discloses a cover plate piece, a pole, an aluminum block and upper plastic. The cover plate piece is provided with mounting holes and clamping grooves, and the pole is installed into the mounting holes and installed to the cover plate piece. The aluminum block is located on the side of the cover plate piece away from the battery cell, and is sleeved and connected to the pole, thereby fixing the pole and the cover plate piece. The upper plastic is wrapped on the side wall of the aluminum block and the side of the aluminum block close to the cover plate piece, thereby insulating the pole and the cover plate piece. The side of the upper plastic close to the cover plate piece is provided with a stand and a sunken groove, the sunken groove extends along the circumference of the stand and is arranged in a closed loop, the stand can be inserted into the clamping groove, so as to connect the upper plastic and the cover plate piece, and prevent the upper plastic and the cover plate piece from relatively moving. The sunken groove can avoid the protrusion on the outer periphery of the clamping groove on the cover plate piece, thereby avoiding the problem of the aluminum block height out of tolerance caused by the thickness of the upper plastic and the aluminum block deviating. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is the partial sectional view of the battery cover plate provided by the utility model embodiment;

[0025] Fig. 2 is the structural schematic view of the lower plastic of the battery cover plate provided by the utility model embodiment;

[0026] Fig. 3 is the structural schematic view of the cover plate piece of the battery cover plate provided by the utility model embodiment.

[0027] In the drawings:

[0028] 100, cover plate piece; 110, mounting hole; 120, clamping groove; 200, pole; 300, aluminum block; 400, upper plastic; 410, stand; 420, sunken groove; 500, sealing ring; 600, lower plastic. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all structures.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] 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.

[0032] In the description of this embodiment, the terms "upper," "lower," "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.

[0033] The battery cover provided in this embodiment can avoid the problem of excessive aluminum block height caused by deviations in the thickness of the plastic and aluminum blocks.

[0034] Specifically, such as Figs. 1 to 3 As shown, the battery cover includes a cover plate 100, terminals 200, an aluminum block 300, and an upper plastic 400. The cover plate 100 has mounting holes 110 and slots 120, with the terminals 200 passing through the mounting holes 110. The aluminum block 300 is located on the side of the cover plate 100 away from the battery cell and is fitted and connected to the terminals 200. The upper plastic 400 covers the sidewalls of the aluminum block 300 and the side of the aluminum block 300 closest to the cover plate 100. The upper plastic 400 has a post 410 and a recess 420 on the side of the upper plastic 400 closest to the cover plate 100. The recess 420 extends circumferentially along the post 410 and is arranged in a closed loop. The post 410 can be inserted into the slot 120, and the recess 420 can avoid protrusions on the outer periphery of the slot 120 on the cover plate 100.

[0035] Based on the above design, the cover plate 100 is provided with a mounting hole 110 and a clamping groove 120, and the pole 200 is arranged in the mounting hole 110 and mounted to the cover plate 100. The aluminum block 300 is located on the side of the cover plate 100 away from the battery cell and is sleeved with the pole 200 to fix the pole 200 and the cover plate 100. The upper plastic 400 is wrapped on the side wall of the aluminum block 300 and the side of the aluminum block 300 close to the cover plate 100 to isolate and insulate the pole 200 and the cover plate 100. The upper plastic 400 is provided with a column 410 and a sunken groove 420 on the side close to the cover plate 100, the sunken groove 420 extends along the circumference of the column 410 and is arranged in a closed loop, and the column 410 can be inserted into the clamping groove 120 to connect the upper plastic 400 and the cover plate 100 to prevent the relative displacement of the upper plastic 400 and the cover plate 100. The sunken groove 420 can avoid the protrusion on the outer periphery of the clamping groove 120 on the cover plate 100, thereby avoiding the problem of the height of the aluminum block 300 exceeding the tolerance in the case that the thickness of the upper plastic 400 and the aluminum block 300 deviates.

[0036] It should be noted that the cover plate 100 is made of an aluminum sheet.

[0037] Optionally, the aluminum block 300 is riveted with the pole 200. Specifically, one of the pole 200 and the aluminum block 300 is provided with a protruding part, and the other is provided with a recessed part, and the protruding part is clamped in the recessed part.

[0038] Since the height of the micro-protrusion around the clamping groove 120 on the cover plate 100 is usually 0.04mm-0.05mm, in the embodiment, the groove depth of the sunken groove 420 is 0.05mm-0.08mm, which can completely avoid the micro-protrusion on the cover plate 100.

[0039] Exemplarily, the groove depth of the sunken groove 420 can be 0.05mm, 0.06mm, 0.07mm or 0.08mm. Of course, the groove depth of the sunken groove 420 can also be other sizes, which are not limited in the present application, and can be set as needed.

[0040] Also in order to completely avoid the micro-protrusion, the distance from the side wall of the sunken groove 420 to the outer wall of the column 410 is 0.5mm-0.8mm, that is, the groove width of the sunken groove 420 is 0.5mm-0.8mm.

[0041] Exemplarily, the groove width of the sunken groove 420 can be 0.5mm, 0.6mm, 0.7mm or 0.8mm. Of course, the groove width of the sunken groove 420 can also be other sizes, which are not limited in the present application, and can be set as needed.

[0042] Optionally, the column 410 is a cylindrical shape, and the sunken groove 420 is an annular groove, which is convenient to manufacture.

[0043] Optionally, the plurality of posts 410 are arranged at intervals near the edge of the upper plastic 400, thereby increasing the connection strength between the upper plastic 400 and the cover plate 100.

[0044] In this embodiment, the number of posts 410 is four, and the four posts 410 are evenly divided into two groups, and the two groups of posts 410 are respectively located near the two ends of the upper plastic 400 along the length direction of the cover plate 100. The two posts 410 in each group of posts 410 are respectively located near the two ends of the upper plastic 400 along the width direction of the cover plate 100.

[0045] Of course, in other embodiments, the number of posts 410 can also be two, three, five, or six, etc., and the present application does not make specific limitations thereon, and can be set as needed.

[0046] Further, the pole 200 includes a base plate and a column, one end of the column is connected to the base plate, the other end of the column is sequentially provided with the mounting hole 110 and the aluminum block 300, and the base plate abuts the side of the cover plate 100 close to the battery cell. The pole 200 is provided with the aluminum block 300 from the side of the cover plate 100 close to the battery cell, which has high connection strength and is convenient to assemble.

[0047] Further, the battery cover plate further includes a sealing ring 500, the sealing ring 500 is sleeved on the column, part of the sealing ring 500 is clamped between the column and the hole wall of the mounting hole 110, and part of the sealing ring 500 is clamped between the cover plate 100 and the base plate, thereby insulating and isolating the cover plate 100 and the pole 200, and further improving the sealing performance of the battery cover plate.

[0048] The battery cover plate further includes a lower plastic 600, the lower plastic 600 is attached to the side of the cover plate 100 close to the battery cell, the pole 200 is provided in the lower plastic 600, the base plate abuts the side of the lower plastic 600 close to the battery cell, and the cover plate 100 is insulated and isolated from the battery cell.

[0049] The present embodiment also provides a battery monomer with high safety.

[0050] Specifically, the battery monomer includes a battery cell, a shell, and the above-mentioned battery cover plate, the battery cell is located in the shell, and the battery cover plate is provided at the opening of the shell. Since the above-mentioned battery cover plate can avoid the problem of height out-of-tolerance of the aluminum block 300 caused by the thickness deviation of the upper plastic 400 and the aluminum block 300, the safety performance of the battery monomer is increased.

[0051] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A battery cover plate, characterized by The battery cover plate comprises a cover plate sheet (100) provided with a mounting hole (110) and a clamping groove (120); a pole (200) penetrating through the mounting hole (110); an aluminum block (300) located on the side of the cover plate sheet (100) away from the battery cell and sleeved and connected to the pole (200); and an upper plastic (400) covering the side wall of the aluminum block (300) and the side of the aluminum block (300) close to the cover plate sheet (100), wherein the side of the upper plastic (400) close to the cover plate sheet (100) is provided with a stand column (410) and a sunken groove (420), the sunken groove (420) extends along the circumference of the stand column (410) and is arranged in a closed loop, the stand column (410) can be inserted into the clamping groove (120), and the sunken groove (420) can avoid the protrusion on the outer periphery of the clamping groove (120) on the cover plate sheet (100). The aluminum block (300) is riveted to the pole (200). The depth of the sunken groove (420) is 0.05-0.08 mm. The distance between the side wall of the sunken groove (420) and the outer wall of the stand column (410) is 0.5-0.8 mm. The stand column (410) is cylindrical, and the sunken groove (420) is an annular groove.

2. The battery cover plate of claim 1, wherein, The number of the stand columns (410) is multiple, and the multiple stand columns (410) are arranged at intervals around the edge of the upper plastic (400).

3. The battery cover plate of claim 1, wherein, The pole (200) comprises a base plate and a column body, one end of the column body is connected to the base plate, the other end of the column body penetrates through the mounting hole (110) and the aluminum block (300) in sequence, and the base plate abuts against the side of the cover plate sheet (100) close to the battery cell.

4. The battery cover plate of claim 1, wherein, The battery cover plate further comprises a sealing ring (500) sleeved on the column body, part of the sealing ring (500) is clamped between the column body and the hole wall of the mounting hole (110), and part of the sealing ring (500) is clamped between the cover plate sheet (100) and the base plate.

5. The battery cover plate of claim 1, wherein, The battery cover plate further comprises a lower plastic (600) attached to the side of the cover plate sheet (100) close to the battery cell, the pole (200) penetrates through the lower plastic (600), and the base plate abuts against the side of the lower plastic (600) close to the battery cell.

6. The battery cover plate of claim 1, wherein, The battery cover plate comprises a battery cell, a shell, and the battery cover plate according to any one of claims 1-9, wherein the battery cell is located in the shell, and the battery cover plate covers the opening of the shell.

7. The battery cover plate of claim 1, wherein, ​ 8. The battery cover plate of claim 7, wherein, ​ 9. The battery cover plate of claim 7, wherein, ​ 10. A battery cell, characterized by ​

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