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, lower plastic, a pole and a pin. A first mounting hole is formed in the cover plate sheet, and the lower plastic sticker is arranged on one side, close to the battery cell, of the cover plate sheet. And a second mounting hole is formed in the lower plastic and is opposite to the first mounting hole. The pole and the pin are integrally formed by punching, the pole sequentially penetrates through the second mounting hole and the first mounting hole, the pin is attached to one side, close to the battery cell, of the lower plastic, and the pin is connected with the battery cell. The battery cover plate is simple in processing procedure and low in cost; the processing operation is simple and the productivity is high. The battery monomer comprises a shell, a battery cell and the battery cover plate, the battery cell is positioned in the shell, and the battery cover plate covers the opening of the shell. Compared with the prior art, the battery cover plate is simple in processing procedure and low in cost because the pole and the pin of the battery cover plate are integrally punched and formed; the processing operation is simple and the productivity 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 new energy technology develops rapidly, and the application of lithium ion power battery is more and more, therefore, the production efficiency of lithium ion power battery is higher and higher requirement. In actual production of battery, the pole post is riveted with the pin again and then is welded, and the procedure is complex, or the pole post is integrally formed with the pin by machining, although the integrally formed procedure is simple, but the machining operation is complex, the operation time is long and cannot batch production, and further lead to low production efficiency.

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

[0004] The first purpose of the utility model is to provide a battery cover plate, the battery cover plate is simple in processing procedure, low in cost, simple in processing operation and high in productivity.

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

[0006] The battery cover plate comprises:

[0007] The cover plate piece is provided with a first mounting hole;

[0008] The lower plastic is attached to the side of the cover plate piece close to the battery cell, and the second mounting hole is opposite to the first mounting hole;

[0009] The pole post and the pin are integrally formed by stamping, the pole post passes through the second mounting hole and the first mounting hole in sequence, the pin is attached to the side of the lower plastic close to the battery cell, and the pin is connected with the battery cell.

[0010] As an optional technical scheme of the battery cover plate, the cover plate piece and the lower plastic are respectively provided with two first mounting holes and two second mounting holes, the two first mounting holes are arranged at intervals along the length direction of the cover plate piece, the two second mounting holes are arranged at intervals along the length direction of the lower plastic, and the pole post passes through the corresponding second mounting hole and the first mounting hole in sequence.

[0011] As an optional technical scheme of the battery cover plate, the pole post and the pin are bent to be L-shaped structure, the battery cover plate comprises two L-shaped structures, and the two L-shaped structures are arranged back to back along the length direction of the cover plate piece.

[0012] As an optional technical scheme of the battery cover plate, a first annular groove is arranged on the cover plate sheet near the lower plastic side along the circumference of the first mounting hole, a first boss is arranged on the lower plastic near the cover plate sheet side along the circumference of the second mounting hole, the shape of the first boss is matched with the shape of the first annular groove, and the first boss can be inserted into the first annular groove.

[0013] As an optional technical scheme of the battery cover plate, a first annular groove is arranged on the cover plate sheet near the lower plastic side along the circumference of the first mounting hole, a first boss is arranged on the lower plastic near the cover plate sheet side along the circumference of the second mounting hole, the shape of the first boss is matched with the shape of the first annular groove, and the first boss can be inserted into the first annular groove.

[0014] As an optional technical scheme of the battery cover plate, the battery cover plate further comprises an aluminum block and a plastic wrapping, the aluminum block is located on the side of the cover plate sheet away from the battery cell, and the plastic wrapping is wrapped on the side wall of the aluminum block and the side of the cover plate sheet close to the aluminum block.

[0015] As an optional technical scheme of the battery cover plate, a second boss is arranged on the cover plate sheet near the plastic wrapping side along the circumference of the first mounting hole, and the plastic wrapping is attached to the second boss.

[0016] As an optional technical scheme of the battery cover plate, a second boss is arranged on the cover plate sheet near the plastic wrapping side along the circumference of the first mounting hole, and the plastic wrapping is attached to the second boss.

[0017] As an optional technical scheme of the battery cover plate, a second boss is arranged on the cover plate sheet near the plastic wrapping side along the circumference of the first mounting hole, and the plastic wrapping is attached to the second boss.

[0018] The second purpose of the utility model is to provide a battery monomer, which has simple machining procedures, low cost, simple machining operation and high productivity.

[0019] To achieve the purpose, the utility model adopts the following technical scheme.

[0020] The battery monomer comprises a shell, a battery cell and the above-mentioned battery cover plate, the battery cell is located in the shell, and the battery cover plate is arranged on the opening of the shell.

[0021] The utility model has the advantages of:

[0022] The battery cover plate provided by the utility model discloses a cover plate piece, a lower plastic, a pole and a pin. The lower plastic is attached to the side of the cover plate piece close to the electric core and serves as an insulating isolation electric core. The cover plate piece is provided with a first mounting hole, and the lower plastic is provided with a second mounting hole opposite to the first mounting hole, both of which are used for mounting the pole. The pole and the pin are integrally stamped and formed, the pole passes through the second mounting hole and the first mounting hole in sequence, the pin is attached to the side of the lower plastic close to the electric core, and the pin is connected with the electric core. Compared with the prior art that the pole and the pin are riveted and then welded, the pole and the pin of the battery cover plate are integrally formed, the processing procedure is simple, and the cost is low; compared with the prior art that the pole and the pin are integrally formed by machining, the pole and the pin of the battery cover plate are stamped and bent, the processing operation is simple, batch production is possible, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a partial sectional view of the battery cover plate provided by the utility model embodiment;

[0024] Figure 2 is a schematic view of the integrated structure of the pole and the pin in the battery cover plate provided by the utility model embodiment;

[0025] Figure 3 is a first schematic view of the cover plate piece in the battery cover plate provided by the utility model embodiment;

[0026] Figure 4 is a second schematic view of the cover plate piece in the battery cover plate provided by the utility model embodiment;

[0027] Figure 5 is a schematic view of the structure of the lower plastic in the battery cover plate provided by the utility model embodiment;

[0028] Figure 6 is a first schematic view of the plastic in the battery cover plate provided by the utility model embodiment;

[0029] Figure 7 is a second schematic view of the plastic in the battery cover plate provided by the utility model embodiment;

[0030] Figure 8 is a first schematic view of the aluminum block in the battery cover plate provided by the utility model embodiment;

[0031] Figure 9 is a second schematic view of the aluminum block in the battery cover plate provided by the utility model embodiment.

[0032] In the drawings:

[0033] 100, cover plate piece; 110, first mounting hole; 120, first annular groove; 130, first clamping groove; 140, second boss; 150, second clamping block; 160, first column; 200, lower plastic; 210, second mounting hole; 220, first boss; 230, first clamping block; 300, pole column; 400, pin; 500, aluminum block; 510, third clamping groove; 520, counterbore groove; 600, plastic package; 610, second clamping groove; 620, third clamping block; 630, second column. DETAILED DESCRIPTION

[0034] The utility model will be described in further detail below in combination with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0035] 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 internal communication of two elements or the interaction relationship of 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.

[0036] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly 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 "below", "below" and "below" the second feature includes that the first feature is directly 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.

[0037] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0038] This embodiment provides a battery cover plate, which has a simple processing procedure, low cost, simple processing operation and high productivity.

[0039] Specifically, such as Figure 1 and Figure 2 As shown, the battery cover includes a cover plate 100, a lower plastic 200, a terminal post 300, and a lead 400. The cover plate 100 has a first mounting hole 110, and the lower plastic 200 is attached to the cover plate 100 near the battery cell. The lower plastic 200 has a second mounting hole 210, which is directly opposite to the first mounting hole 110. The terminal post 300 and the lead 400 are integrally stamped, with the terminal post 300 passing through the second mounting hole 210 and the first mounting hole 110 in sequence. The lead 400 is attached to the lower plastic 200 near the battery cell and is connected to the battery cell.

[0040] Based on the above design, the lower plastic 200 is attached to the cover plate 100 near the battery cell, serving as insulation to isolate the battery cell. The cover plate 100 has a first mounting hole 110, and the lower plastic 200 has a second mounting hole 210, which is directly opposite to the first mounting hole 110, both used for mounting the terminal post 300. The terminal post 300 and the lead 400 are integrally stamped. The terminal post 300 passes through the second mounting hole 210 and the first mounting hole 110 in sequence, and the lead 400 is attached to the lower plastic 200 near the battery cell, and the lead 400 is connected to the battery cell. Compared to the existing technology where the terminal post 300 and the pin 400 are riveted and then welded, the terminal post 300 and the pin 400 of this battery cover are integrally formed, which simplifies the processing steps and reduces costs. Compared to the existing technology where the terminal post 300 and the pin 400 are integrally formed by machining, the terminal post 300 and the pin 400 of this battery cover are formed by stamping and bending, which simplifies the processing operation and enables mass production, thereby improving production efficiency.

[0041] Furthermore, such as Figure 3 , Figure 4 and Figure 5 As shown, the cover plate 100 and the lower plastic 200 are respectively provided with two first mounting holes 110 and two second mounting holes 210. The two first mounting holes 110 are spaced apart along the length of the cover plate 100, and the two second mounting holes 210 are spaced apart along the length of the lower plastic 200. The pole post 300 passes through the corresponding second mounting hole 210 and the first mounting hole 110 in sequence.

[0042] It should be noted that the two terminals 300 refer to one positive terminal 300 and one negative terminal 300. That is, the positive terminal 300 and the pin 400 are integrally stamped together, and the negative terminal 300 and the pin 400 are integrally stamped together.

[0043] Optionally, continue as follows Figure 1As shown, the terminal post 300 and the pin 400 are bent into an L-shaped structure, and the battery cover includes two L-shaped structures, which are arranged back to back along the length of the cover plate 100.

[0044] Optionally, continue as follows Figure 4 and Figure 5 As shown, the cover plate 100 has a first annular groove 120 circumferentially arranged along the first mounting hole 110 on the side near the lower plastic 200, and the lower plastic 200 has a first boss 220 circumferentially arranged along the second mounting hole 210 on the side near the cover plate 100. The shape of the first boss 220 is adapted to the shape of the first annular groove 120, and the first boss 220 can be inserted into the first annular groove 120 to increase the connection strength between the cover plate 100 and the lower plastic 200.

[0045] Furthermore, the bottom of the first annular groove 120 is provided with a first slot 130, and the first boss 220 is provided with a first block 230. The shape of the first block 230 is adapted to the first slot 130, and the first block 230 can be locked in the first slot 130, further increasing the connection strength between the cover plate 100 and the lower plastic 200.

[0046] In this embodiment, the two first locking blocks 230 on the lower plastic 200 are located at the side edges of the two first protrusions 220 respectively, and correspondingly, the two first locking grooves 130 on the cover plate 100 are located at the inner side walls of the two first annular grooves 120 respectively.

[0047] Furthermore, each of the two first annular grooves of the cover plate 100 is provided with a first post 160, and the first post 160 in each first annular groove is located on the opposite side of the first slot 130. The lower plastic 200 is made of rubber, and the first post 160 abuts against the lower plastic 200 to increase the sealing between the lower plastic 200 and the cover plate 100.

[0048] Optionally, continue as follows Figure 1 As shown, the battery cover also includes an aluminum block 500 and a plastic coating 600. The aluminum block 500 is located on the side of the cover plate 100 away from the battery cell. The plastic coating 600 is wrapped around the side wall of the aluminum block 500 and the side near the cover plate 100. The terminal post 300 passes through the corresponding plastic coating 600 and is riveted to the corresponding aluminum block 500.

[0049] Furthermore, such as Figure 3 , Figure 6 and Figure 7 As shown, the cover plate 100 has a second protrusion 140 on the side near the plastic coating 600 along the circumference of the first mounting hole 110. The plastic coating 600 is attached to the second protrusion 140. The second protrusion 140 increases the thickness of the cover plate 100 around the first mounting hole 110, thereby increasing the structural strength of the cover plate 100.

[0050] Furthermore, the edge of the second protrusion 140 is provided with a second locking block 150, and the edge of the plastic cover 600 near the cover plate 100 is provided with a second locking groove 610. The shape of the second locking block 150 is adapted to the shape of the second locking groove 610. The second locking block 150 can be locked in the second locking groove 610, which increases the connection strength between the plastic cover 600 and the cover plate 100, and also prevents the plastic cover 600 from rotating and shifting, thereby increasing the fixation of the aluminum block 500.

[0051] In this embodiment, the second slots 610 on the two plastic-coated 600 are respectively disposed on the side edges of the two plastic-coated 600. Correspondingly, the two first blocks 230 are respectively disposed on the side edges of the two protrusions.

[0052] Furthermore, a second post 630 is provided on the side of the plastic coating 600 near the cover plate 100. The second post 630 abuts against the cover plate 100. Since the plastic coating 600 is a rubber material, the rubber-plastic second post 630 abutting against the cover plate 100 can increase the insulation and isolation performance between the plastic coating 600 and the cover plate 100.

[0053] Similarly, the aluminum block 500 is provided with a third slot 510 on the side near the plastic coating 600, and a third block 620 is provided inside the plastic coating 600. The shape of the third block 620 is adapted to the shape of the third slot 510, and the third block 620 can be locked in the third slot 510, increasing the connection strength between the aluminum block 500 and the plastic coating 600.

[0054] In this embodiment, as Figure 8 and Figure 9 As shown, the aluminum block 500 has a countersunk groove 520 on the side away from the cover plate 100. The pole post 300 is flush with the bottom surface of the countersunk groove 520, which protects the pole post 300 and also reduces the volume of the pole post 300.

[0055] Optionally, the battery cover also includes a sealing ring, which is fitted onto the terminal post 300. A portion of the sealing ring is located within the first mounting hole 110, and the other portion is wrapped with plastic 600. That is, a portion of the sealing ring is sandwiched between the side wall of the terminal post 300 and the inner side wall of the first mounting hole 110, and the other portion passes through the plastic 600 and is sandwiched between the cover plate 100 and the aluminum block 500.

[0056] This embodiment also provides a battery cell with simple processing steps, low cost, simple processing operation and high productivity.

[0057] Specifically, the battery cell includes a casing, a battery cell, and the aforementioned battery cover. The battery cell is located inside the casing, and the battery cover is positioned over the opening of the casing. Since the terminal posts 300 and leads 400 of the aforementioned battery cover are integrally stamped, compared to existing technologies, the processing steps are simpler and the cost is lower; the processing operation is simpler and the productivity is higher.

[0058] 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 battery cover, characterized in that, include: A cover plate (100) is provided with a first mounting hole (110); The lower plastic (200) is attached to the cover plate (100) on the side close to the battery cell. The lower plastic (200) is provided with a second mounting hole (210), which is directly opposite to the first mounting hole (110). The electrode (300) and the pin (400) are integrally stamped. The electrode (300) passes through the second mounting hole (210) and the first mounting hole (110) in sequence. The pin (400) is attached to the lower plastic (200) near the battery cell and is connected to the battery cell.

2. The battery cover according to claim 1, characterized in that, The cover plate (100) and the lower plastic (200) are respectively provided with two first mounting holes (110) and two second mounting holes (210). The two first mounting holes (110) are spaced apart along the length direction of the cover plate (100), and the two second mounting holes (210) are spaced apart along the length direction of the lower plastic (200). The pole post (300) passes through the corresponding second mounting hole (210) and the first mounting hole (110) in sequence.

3. The battery cover according to claim 2, characterized in that, The pole (300) and the pin (400) are bent into an L-shaped structure, and the battery cover includes two L-shaped structures, which are arranged back to back along the length direction of the cover plate (100).

4. The battery cover according to claim 2, characterized in that, The cover plate (100) has a first annular groove (120) circumferentially along the first mounting hole (110) on the side near the lower plastic (200), and the lower plastic (200) has a first boss (220) circumferentially along the second mounting hole (210) on the side near the cover plate (100). The shape of the first boss (220) is adapted to the shape of the first annular groove (120), and the first boss (220) can be inserted into the first annular groove (120).

5. The battery cover according to claim 4, characterized in that, The bottom of the first annular groove (120) is provided with a first slot (130), and the first boss (220) is provided with a first block (230). The shape of the first block (230) is adapted to the first slot (130), and the first block (230) can be locked in the first slot (130).

6. The battery cover according to claim 1, characterized in that, The battery cover also includes an aluminum block (500) and a plastic coating (600). The aluminum block (500) is located on the side of the cover plate (100) away from the battery cell. The plastic coating (600) is wrapped around the side wall of the aluminum block (500) and the side close to the cover plate (100). The terminal post (300) passes through the corresponding plastic coating (600) and is riveted to the corresponding aluminum block (500).

7. The battery cover according to claim 6, characterized in that, The cover plate (100) has a second boss (140) circumferentially along the first mounting hole (110) on the side near the plastic coating (600), and the plastic coating (600) is attached to the second boss (140).

8. The battery cover according to claim 7, characterized in that, The second boss (140) has a second locking block (150) on its edge, and the plastic cover (600) has a second locking groove (610) on its edge near the cover plate (100). The shape of the second locking block (150) is adapted to the shape of the second locking groove (610), and the second locking block (150) can be locked in the second locking groove (610).

9. The battery cover according to claim 6, characterized in that, The aluminum block (500) has a third slot (510) on the side near the plastic coating (600), and a third block (620) is provided inside the plastic coating (600). The shape of the third block (620) is adapted to the shape of the third slot (510), and the third block (620) can be locked in the third slot (510).

10. A single battery cell, characterized in that, The battery includes a housing, a battery cell, and a battery cover as described in any one of claims 1-9, wherein the battery cell is located inside the housing, and the battery cover is disposed over an opening in the housing.

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