Lower plastic component, battery cover plate and battery monomer

Abstract

The utility model belongs to the technical field of batteries, and discloses a lower plastic component, a battery cover plate and a battery monomer. The lower plastic component comprises first lower plastic, second lower plastic and a clamping component. The first lower plastic cement is attached to one side of the cover plate sheet, and the positive pole penetrates through the cover plate sheet and the first lower plastic cement; the second lower plastic cement is attached to one side of the cover plate sheet, and the negative pole penetrates through the cover plate sheet and the second lower plastic cement; the first lower plastic and the second lower plastic sequentially extend in the length direction of the cover plate piece. The clamping assembly is located on one side of the first lower plastic and one side of the second lower plastic and comprises a buckling piece and a buckling position piece, the buckling piece is fixed to one of the first lower plastic and the second lower plastic, the buckling position piece is fixed to the other one of the first lower plastic and the second lower plastic, and the buckling piece can be hung on the buckling position piece in a clamped mode. The displacement of the first lower plastic and the second lower plastic is limited, so that the lower plastic component is simple and compact in structure; the isolation insulation effect is good and the assembly difficulty is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technical field especially relates to a lower plastic component, battery cover plate and battery monomer. BACKGROUND

[0002] Generally, the battery includes the light aluminum sheet, the positive pole, the negative pole and the positive lower plastic and the negative lower plastic, the positive lower plastic and the negative lower plastic are all pasted in the light aluminum sheet bottom, and the positive lower plastic is opposite the positive pole setting, and the negative lower plastic is opposite the negative pole setting. Because the battery needs to set the explosion -proof valve in the light aluminum sheet middle position, therefore, the explosion -proof valve needs to wear the one of the positive lower plastic or the negative lower plastic, the one that is worn sets up is longer lower plastic (positive lower plastic or negative lower plastic). Because the gravity effect, the longer lower plastic is close to the end of shorter lower plastic and is easy to sag, affects its insulation isolation effect, and after its sag, the longer lower plastic is easy to swing and leads to exceeding the light aluminum sheet, increases the assembly difficulty.

[0003] Therefore, it is urgent to propose a lower plastic component, battery cover plate and battery monomer to solve the above problems. INVENTION CONTENTS

[0004] The first purpose of the utility model lies in providing a lower plastic component, the lower plastic component simple and compact structure, good isolation insulation effect and low assembly difficulty.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] Lower plastic component, characterized by, including:

[0007] The first lower plastic is pasted on the side of the cover sheet close to the battery cell, and the positive pole is worn in the cover sheet and the first lower plastic;

[0008] The second lower plastic is pasted on the side of the cover sheet close to the battery cell, and the negative pole is worn in the cover sheet and the second lower plastic, and the first lower plastic and the second lower plastic are sequentially arranged along the length direction of the cover sheet;

[0009] The clamping assembly is located on the side of the first lower plastic and the second lower plastic close to the battery cell, and the clamping assembly includes a buckle and a buckle position, the buckle is fixed in one of the first lower plastic and the second lower plastic, the buckle position is fixed in the other of the first lower plastic and the second lower plastic, and the buckle can be hung on the buckle position to limit the displacement of the first lower plastic and the second lower plastic towards the battery cell and along the width direction of the cover sheet.

[0010] As an optional technical scheme of the lower plastic assembly, the length of the first lower plastic is less than the length of the second lower plastic along the length direction of the cover plate piece, the buckle part is located on the first lower plastic, and the clasp part extends from the second lower plastic to the first lower plastic along the length direction of the cover plate piece and is clamped on the buckle part.

[0011] As an optional technical scheme of the lower plastic assembly, the buckle part comprises two groups of clamping claws, and the two groups of clamping claws are oppositely arranged along the width direction of the cover plate piece.

[0012] As an optional technical scheme of the lower plastic assembly, the buckle part further comprises two groups of reinforcing ribs, and each group of reinforcing ribs is respectively abutted to the outer side of the corresponding group of clamping claws and the side of the first lower plastic close to the battery cell.

[0013] As an optional technical scheme of the lower plastic assembly, the first lower plastic comprises a first plastic body and a first surrounding edge, the first surrounding edge is arranged around the first plastic body and extends towards the battery cell, the second lower plastic comprises a second plastic body and a second surrounding edge, the second surrounding edge is arranged around the second plastic body and extends towards the battery cell, one end of the clasp plate is connected to the side of the second surrounding edge close to the first surrounding edge, and the other end of the clasp plate is arranged through the first surrounding edge and the clamping claw clamping connection.

[0014] As an optional technical scheme of the lower plastic assembly, the first surrounding edge is provided with a spacing avoidance, and the clasp plate is connected with the clamping claw through the spacing avoidance.

[0015] As an optional technical scheme of the lower plastic assembly, the buckle part further comprises a limiting plate, the limiting plate is located in the spacing avoidance, and the limiting plate is arranged through the clasp plate to limit the displacement of the clasp plate along the length direction of the cover plate piece.

[0016] As an optional technical scheme of the lower plastic assembly, the clasp plate is a clasp frame structure, and the limiting plate is arranged through the clasp frame structure and abutted to the inner wall of the clasp frame structure.

[0017] The second purpose of the utility model is to provide a battery cover plate, which is simple and compact in structure, high in safety and low in assembly difficulty.

[0018] To achieve the purpose, the utility model adopts the following technical scheme:

[0019] The battery cover plate comprises a cover plate sheet, a positive pole, a negative pole and the lower plastic component, the first lower plastic is attached to the side of the cover plate sheet close to the battery cell, and the positive pole is arranged through the cover plate sheet and the first lower plastic; the second lower plastic is attached to the side of the cover plate sheet close to the battery cell, and the negative pole is arranged through the cover plate sheet and the second lower plastic; the clamping component is arranged on the side of the first lower plastic and the second lower plastic close to the battery cell, the buckle member is fixed to one of the first lower plastic and the second lower plastic, the locking member is fixed to the other one of the first lower plastic and the second lower plastic, and the buckle member can be hung on the locking member.

[0020] A third purpose of the utility model is to provide a battery monomer which is safe and low in assembly difficulty.

[0021] To achieve the purpose, the utility model adopts the following technical scheme:

[0022] The battery monomer comprises a battery cell, a shell and the battery cover plate, the battery cell is arranged in the shell, and the battery cover plate is arranged on the opening of the shell.

[0023] The utility model has the advantages of:

[0024] The lower plastic component comprises a first lower plastic, a second lower plastic and a clamping component. The first lower plastic and the second lower plastic are sequentially arranged along the length direction of the cover plate sheet, the first lower plastic is attached to the cover plate sheet, the positive pole is arranged through the cover plate sheet and the first lower plastic, the first lower plastic can insulate and isolate the cover plate sheet from the battery cell and the cover plate sheet from the positive pole, the second lower plastic is attached to the cover plate sheet, the negative pole is arranged through the cover plate sheet and the second lower plastic, and the second lower plastic can insulate and isolate the cover plate sheet from the battery cell and the cover plate sheet from the negative pole. The clamping component is arranged on the side of the first lower plastic and the second lower plastic close to the battery cell, does not occupy the space of the first lower plastic and the second lower plastic along the length direction of the cover plate sheet, and has the advantages of simple structure and compactness. The clamping component comprises a buckle member and a locking member, the buckle member is fixed to one of the first lower plastic and the second lower plastic, the locking member is fixed to the other one of the first lower plastic and the second lower plastic, the buckle member can be hung on the locking member, the displacement of the first lower plastic and the second lower plastic towards the battery cell and the displacement of the first lower plastic and the second lower plastic along the width direction of the cover plate sheet are limited, the first lower plastic and the second lower plastic can be prevented from sagging and warping due to gravity, the insulating and isolating effect of the lower plastic component is improved, the relative ends of the first lower plastic and the second lower plastic are prevented from swinging along the width direction of the cover plate sheet, and the assembly difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the assembly drawing of the lower plastic component, the cover plate sheet, the positive pole and the negative pole provided by the utility model embodiment;

[0026] Figure 2 is Figure 1 Enlarged view at A;

[0027] Figure 3 is a structural schematic view of a battery cover plate provided by an embodiment of the present application.

[0028] In the figure:

[0029] 10, positive pole; 20, negative pole; 30, cover plate piece;

[0030] 100, first lower plastic; 110, first plastic body; 120, first surrounding edge; 200, second lower plastic; 210, second plastic body; 220, second surrounding edge; 300, clamping assembly; 310, clamping part; 320, buckling part; 321, clamping jaw; 322, reinforcing rib; 323, limiting plate. DETAILED DESCRIPTION

[0031] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, rather than all the structures.

[0032] In the description of the present application, 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 internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include the direct contact between the first and second features, or it can include the contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] 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.

[0035] The lower plastic assembly provided in this embodiment has a simple and compact structure; it has good isolation and insulation effects and is easy to assemble.

[0036] Specifically, such as Figures 1 to 3 As shown, the lower plastic assembly includes a first lower plastic 100, a second lower plastic 200, and a snap-fit ​​assembly 300. The first lower plastic 100 is attached to the cover plate 30 near the battery cell, and the positive electrode post 10 passes through the cover plate 30 and the first lower plastic 100; the second lower plastic 200 is attached to the cover plate 30 near the battery cell, and the negative electrode post 20 passes through the cover plate 30 and the second lower plastic 200; the first lower plastic 100 and the second lower plastic 200 extend sequentially along the length of the cover plate 30. The snap-fit ​​assembly 300 is located on the side of the first lower plastic 100 and the second lower plastic 200 near the battery cell. The snap-fit ​​assembly 300 includes a snap fastener 310 and a latching member 320. The snap fastener 310 is fixed to one of the first lower plastic 100 and the second lower plastic 200, and the latching member 320 is fixed to the other of the first lower plastic 100 and the second lower plastic 200. The snap fastener 310 can be snapped onto the latching member 320 to limit the displacement of the first lower plastic 100 and the second lower plastic 200 toward the battery cell and the displacement along the width direction of the cover plate 30.

[0037] Based on the above design, the first lower plastic 100 and the second lower plastic 200 extend sequentially along the length of the cover plate 30. The first lower plastic 100 is attached to the cover plate 30, and the positive electrode post 10 passes through the cover plate 30 and the first lower plastic 100. The first lower plastic 100 can insulate and isolate the cover plate 30 from the battery cell and from the positive electrode post 10. The second lower plastic 200 is attached to the cover plate 30, and the negative electrode post 20 passes through the cover plate 30 and the second lower plastic 200. The second lower plastic 200 can insulate and isolate the cover plate 30 from the battery cell and from the negative electrode post 20. The snap-fit ​​assembly 300 is located on the side of the first lower plastic 100 and the second lower plastic 200 closer to the battery cell, and does not occupy the space of the first lower plastic 100 and the second lower plastic 200 along the length of the cover plate 30, resulting in a simple and compact structure. The snap-fit ​​assembly 300 includes a snap-fit ​​member 310 and a latching member 320. The snap-fit ​​member 310 is fixed to one of the first lower plastic 100 and the second lower plastic 200, and the latching member 320 is fixed to the other one. The snap-fit ​​member 310 can be hooked onto the latching member 320 to limit the displacement of the first lower plastic 100 and the second lower plastic 200 toward the battery cell and the displacement along the width direction of the cover plate 30. This prevents the first lower plastic 100 and the second lower plastic 200 from sag or warping due to gravity, thereby improving the insulation effect of the lower plastic assembly. It also prevents the opposite ends of the first lower plastic 100 and the second lower plastic 200 from swinging along the width direction of the cover plate 30, thereby reducing the assembly difficulty.

[0038] In this embodiment, along the length of the cover plate 30, the length of the first lower plastic 100 is less than the length of the second lower plastic 200. The fastening member 320 is located on the first lower plastic 100, and the snap fastener 310 extends along the length of the cover plate 30 from the second lower plastic 200 toward the first lower plastic 100 and is snapped onto the fastening member 320. The snap fastener 310 is positioned so that it extends from the end of the second lower plastic 200 onto the first lower plastic 100, thus avoiding the location of the explosion-proof valve.

[0039] Furthermore, the fastening member 320 includes two sets of claws 321, which are arranged opposite each other along the width direction of the cover plate 30. The fastening member 310 includes a locking plate, which abuts against the inner sides of the two sets of claws 321 on both sides along the width direction of the cover plate 30. The claws 321 and the locking plate have a simple structure and high connection strength.

[0040] In this embodiment, the claw 321 includes a vertical plate and hooks. The vertical plate is vertically fixed to the first lower plastic 100, and the hooks are disposed at the end of the vertical plate. The two sets of hooks are located opposite each other on the inner side of the vertical plate and bend downward.

[0041] To increase the structural strength of the claw 321, the fastener 320 also includes two sets of reinforcing ribs 322, each set of reinforcing ribs 322 abutting against the outer side of the corresponding set of claws 321 and the side of the first lower plastic 100 near the battery cell.

[0042] Continue as Figure 2 As shown, the first lower plastic assembly 100 includes a first plastic body 110 and a first perimeter 120, with the first perimeter 120 surrounding the first plastic body 110 and extending towards the battery cell. The second lower plastic assembly 200 includes a second plastic body 210 and a second perimeter 220, with the second perimeter 220 surrounding the second plastic body 210 and extending towards the battery cell. One end of a retaining plate is connected to the side of the second perimeter 220 near the first perimeter 120, and the other end of the retaining plate passes through the first perimeter 120 and is hooked and connected to the retainer 321. The first perimeter 120 and the second perimeter 220 not only increase the isolation effect of the lower plastic assembly without taking up much space, but the second perimeter 220 also facilitates the connection of the retaining plate.

[0043] Furthermore, the first perimeter 120 is provided with a gap, and the card plate passes through the gap and is connected to the claw 321. The gap avoids the card plate, making it convenient for the card plate to pass through.

[0044] Furthermore, the fastener 320 also includes a limiting plate 323, which is located in the gap and has a retaining plate through it to limit the displacement of the retaining plate along the length of the cover plate 30, thereby further improving the connection strength between the first lower plastic 100 and the second lower plastic 200.

[0045] In this embodiment, the card plate is a card frame structure, and the limiting plate 323 passes through the card frame structure and abuts against the inner wall of the card frame structure. The card frame structure can not only be limited by the limiting plate 323, but also saves materials and has low cost.

[0046] The battery cover provided in this embodiment has a simple and compact structure, good safety, and low assembly difficulty.

[0047] Specifically, the battery cover includes a cover plate 30, a positive terminal post 10, a negative terminal post 20, and the aforementioned lower plastic assembly. A first lower plastic 100 is attached to the cover plate 30 near the battery cell, and the positive terminal post 10 passes through the cover plate 30 and the first lower plastic 100. A second lower plastic 200 is attached to the cover plate 30 near the battery cell, and the negative terminal post 20 passes through the cover plate 30 and the second lower plastic 200. A snap-fit ​​assembly 300 is located on the side of the first lower plastic 100 and the second lower plastic 200 near the battery cell. A snap fastener 310 is fixed to one of the first lower plastic 100 and the second lower plastic 200, and a latching member 320 is fixed to the other of the first lower plastic 100 and the second lower plastic 200. The snap fastener 310 can be snapped onto the latching member 320. Therefore, the snap-fit ​​assembly 300 can, on the one hand, prevent the first lower plastic 100 and the second lower plastic 200 from sagging and warping due to gravity, thereby improving the insulation and isolation effect of the lower plastic assembly and increasing the safety of the battery cover; on the other hand, it can prevent the opposite ends of the first lower plastic 100 and the second lower plastic 200 from swinging along the width direction of the cover plate 30, thereby reducing the assembly difficulty of the battery cover.

[0048] The battery cell provided in this embodiment is highly safe and easy to assemble.

[0049] Specifically, the battery cell includes a cell, a casing, and the aforementioned battery cover. The cell is located inside the casing, and the battery cover is placed over the casing opening. Because the aforementioned battery cover has high safety and low assembly difficulty, the battery cell has high safety and low assembly difficulty.

[0050] 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. A lower plastic component, characterized in that, include: The first lower plastic (100) is attached to the cover plate (30) on the side close to the cell, and the positive electrode post (10) passes through the cover plate (30) and the first lower plastic (100); The second lower plastic (200) is attached to the cover plate (30) on the side close to the battery cell. The negative terminal (20) passes through the cover plate (30) and the second lower plastic (200). The first lower plastic (100) and the second lower plastic (200) extend sequentially along the length of the cover plate (30). A snap-fit ​​assembly (300) is located on the side of the first lower plastic (100) and the second lower plastic (200) near the battery cell. The snap-fit ​​assembly (300) includes a snap fastener (310) and a latching member (320). The snap fastener (310) is fixed to one of the first lower plastic (100) and the second lower plastic (200), and the latching member (320) is fixed to the other of the first lower plastic (100) and the second lower plastic (200). The snap fastener (310) can be snapped onto the latching member (320) to limit the displacement of the first lower plastic (100) and the second lower plastic (200) toward the battery cell and the displacement along the width direction of the cover plate (30).

2. The lower plastic assembly according to claim 1, characterized in that, Along the length direction of the cover plate (30), the length of the first lower plastic (100) is less than the length of the second lower plastic (200), the fastening member (320) is located on the first lower plastic (100), and the snap fastener (310) extends from the second lower plastic (200) toward the first lower plastic (100) along the length direction of the cover plate (30) and is snapped onto the fastening member (320).

3. The lower plastic assembly according to claim 2, characterized in that, The fastening member (320) includes two sets of claws (321), which are arranged opposite to each other along the width direction of the cover plate (30). The fastening member (310) includes a locking plate, which abuts against the inner sides of the two sets of claws (321) on both sides along the width direction of the cover plate (30).

4. The lower plastic assembly according to claim 3, characterized in that, The fastener (320) also includes two sets of reinforcing ribs (322), each set of reinforcing ribs (322) abutting against the outer side of the corresponding set of claws (321) and the side of the first lower plastic (100) near the battery cell.

5. The lower plastic assembly according to claim 3, characterized in that, The first lower plastic (100) includes a first plastic body (110) and a first perimeter (120), the first perimeter (120) surrounds the first plastic body (110) and extends toward the battery cell; the second lower plastic (200) includes a second plastic body (210) and a second perimeter (220), the second perimeter (220) surrounds the second plastic body (210) and extends toward the battery cell, one end of the card plate is connected to the side of the second perimeter (220) near the first perimeter (120), and the other end of the card plate passes through the first perimeter (120) and is hooked and connected to the claw (321).

6. The lower plastic assembly according to claim 5, characterized in that, The first perimeter (120) is provided with a gap, and the card plate passes through the gap and is connected to the card claw (321).

7. The lower plastic assembly according to claim 6, characterized in that, The fastener (320) also includes a limiting plate (323), which is located in the gap and passes through the card plate to limit the displacement of the card plate along the length direction of the cover plate (30).

8. The lower plastic assembly according to claim 7, characterized in that, The card plate is a card frame structure, and the limiting plate (323) passes through the card frame structure and abuts against the inner wall of the card frame structure.

9. A battery cover, characterized in that, The assembly includes a cover plate (30), a positive terminal (10), a negative terminal (20), and a lower plastic assembly as described in any one of claims 1-8. A first lower plastic assembly (100) is attached to the cover plate (30) near the battery cell, and the positive terminal (10) passes through the cover plate (30) and the first lower plastic assembly (100). A second lower plastic assembly (200) is attached to the cover plate (30) near the battery cell, and the negative terminal (20) passes through the cover plate (30) and the second lower plastic assembly (200). Plastic (200); the snap-fit ​​assembly (300) is located on the side of the first lower plastic (100) and the second lower plastic (200) near the battery cell, the snap fastener (310) is fixed to one of the first lower plastic (100) and the second lower plastic (200), the latching member (320) is fixed to the other of the first lower plastic (100) and the second lower plastic (200), and the snap fastener (310) can be snapped onto the latching member (320).

10. A single battery cell, characterized in that, The battery includes a battery cell, a housing, and a battery cover as described in claim 9, wherein the battery cell is located inside the housing, and the battery cover is disposed over the opening of the housing.

Images