Mos quick connection type top cover

Abstract

The utility model relates to an mos quick connection type top cover, which comprises a top cover plate and further comprises a positive pole post, a negative pole post, a positive pole terminal and a negative pole terminal, the negative pole columns comprise a first negative pole column and a second negative pole column, the first negative pole column is mounted beside the positive pole column, and the second negative pole column is located at one end, symmetrical to the positive pole column, of the top cover plate; the quick-connection riveting block is mounted at the bottom ends of the positive pole and the first negative pole, and at least one quick-connection socket is arranged on the quick-connection riveting block; the mos module is arranged between the positive pole and the first negative pole, and at least one quick connector is arranged at the bottom end of the mos module; the quick connector and the quick socket are arranged in a clamping manner, so that the mos module can be conveniently disassembled, when the mos module needs to be maintained and replaced, the top cover plate does not need to be disassembled, a single battery cell cannot be directly scrapped, meanwhile, welding is not needed when the mos module is installed, and the phenomenon that the temperature of a pole is too high, so that the pole is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the field of lithium ion batteries, in particular to a mos quick-connect top cover. Background Art

[0002] With the rapid development of new energy vehicles, as the core component of new energy vehicles, the safety and performance of lithium batteries have attracted much attention. As the main power source of new energy vehicles, power batteries have become one of the key components of electric vehicles. In the existing control technology of power batteries, mos switches have become the main components for controlling the on and off of the battery, and mos switches are usually arranged on the battery top cover.

[0003] Existing mos modules are usually directly welded to the battery top cover. When the mos module needs to be repaired and replaced, the top cover plate needs to be disassembled, resulting in the direct scrapping of single cells. At the same time, welding is required when installing the mos module, which easily causes the temperature of the pole column to be too high, resulting in damage to the pole column.

[0004] Therefore, we propose a mos quick-connect top cover to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a mos quick-connect top cover.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A mos quick-connect top cover, characterized in that it includes a top cover plate, and further includes:

[0008] A positive pole column, installed at one end of the top cover plate;

[0009] A negative pole column, the negative pole column includes a first negative pole column and a second negative pole column, the first negative pole column is installed beside the positive pole column, and the second negative pole column is located at one end of the top cover plate symmetric to the positive pole column;

[0010] Quick-connect riveting blocks, installed at the bottom ends of the positive pole column and the first negative pole column, and at least one quick-connect socket is provided on the quick-connect riveting blocks;

[0011] A mos module, arranged between the positive pole column and the first negative pole column, at least one quick-connect joint is provided at the bottom end of the mos module, the quick-connect joint is inserted into the quick-connect socket, the bottom end of the mos module contacts the quick-connect riveting block, and the top end of the mos module contacts the bottom ends of the positive pole column and the first negative pole column.

[0012] Further preferably, when the quick-connect joint is inserted into the quick-connect socket, it is in a compressed state.

[0013] Further preferably, a riveting block is provided at the bottom end of the second negative electrode post, and both the quick-connect riveting block and the riveting block are snap-fitted on the top cover plate.

[0014] Further preferably, a positive electrode sealing ring is provided around the outside of the positive electrode post, a negative electrode sealing ring is sleeved outside the first negative electrode post and the second negative electrode post, there is no gap between the positive electrode sealing ring and the positive electrode post, and there is no gap between the negative electrode sealing ring and the first negative electrode post and the second negative electrode post.

[0015] Further preferably, a positive electrode upper plastic is provided on the positive electrode post, negative electrode upper plastics are provided at the top ends of the first negative electrode post and the second negative electrode post, and both the positive electrode upper plastic and the negative electrode upper plastics are integrally formed by injection molding.

[0016] Further preferably, a lower plastic is provided at the bottom end of the top cover plate, and the positive electrode post, the first negative electrode post and the second negative electrode post all penetrate through the top cover plate and the lower plastic.

[0017] Further preferably, an explosion-proof sheet is provided in the middle of the top cover plate, a pressure relief hole penetrating through the top cover plate is provided at the bottom end of the explosion-proof sheet, and the explosion-proof sheet is located in the pressure relief hole.

[0018] Further preferably, an explosion-proof valve sticker is provided at the top end of the explosion-proof sheet, the explosion-proof valve sticker is located in the pressure relief hole, and the combination of the explosion-proof sheet and the explosion-proof valve sticker does not exceed the end face of the top cover plate.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] By providing a snap-fit arrangement between the quick-connect joint and the quick-connect socket, the mos module can be conveniently disassembled. When the mos module needs to be repaired or replaced, it is not necessary to disassemble the top cover plate, which will not cause the single cell to be directly scrapped. At the same time, when installing the mos module, welding is not required, which will not cause the temperature of the electrode post to be too high, thus causing damage to the electrode post. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded structural view of a mos quick-connect type top cover proposed by the present utility model;

[0022] Figure 2 is a sectional view of a mos quick-connect type top cover proposed by the present utility model;

[0023] Figure 3 is Figure 2 a schematic enlarged view of the structure at A in

[0024] In the figure: 1. Top cover plate; 2. Positive sealing ring; 3. Riveting block; 4. Positive electrode column 1; 5. Upper plastic of positive electrode; 6. Negative electrode column; 6a. First negative electrode column; 6b. Second negative electrode column; 7. Upper plastic of negative electrode; 8. Lower plastic; 9. Explosion-proof valve sticker; 10. Explosion-proof sheet; 11. Quick-connect riveting block; 12. Mos module; 13. Quick-connect socket; 14. Quick-connect joint; 15. Negative sealing ring. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Refer to Figures 1-3 , a mos quick-connect type top cover, including a top cover plate 1, and further including:

[0027] A positive electrode column 4, installed at one end of the top cover plate 1, a negative electrode column 6, the negative electrode column includes a first negative electrode column 6a and a second negative electrode column 6b, the first negative electrode column 6a is installed beside the positive electrode column 4, and the second negative electrode column 6b is located at one end of the top cover plate 1 symmetric to the positive electrode column 4. The positive electrode column 4 and the negative electrode column 6 have the same size for subsequent connection.

[0028] A quick-connect riveting block 11, installed at the bottom ends of the positive electrode column 4 and the first negative electrode column 6a. At least one quick-connect socket 13 is provided on the quick-connect riveting block 11. By engaging the quick-connect joint 14 and the quick-connect socket 13, the mos module 12 can be conveniently disassembled. When the mos module 12 needs to be repaired or replaced, it is not necessary to disassemble the top cover plate 1, which will not cause the single cell to be directly scrapped. At the same time, when installing the mos module 12, welding is not required, which will not cause the temperature of the electrode column to be too high, thus causing damage to the electrode column.

[0029] A mos module 12, arranged between the positive electrode column 4 and the first negative electrode column 6. At least one quick-connect joint 14 is provided at the bottom end of the mos module 12. The quick-connect joints 14 are all inserted into the quick-connect sockets 13. The bottom end of the mos module 12 contacts the quick-connect riveting block 11. The top end of the mos module 12 contacts the bottom ends of the positive electrode column 4 and the first negative electrode column 6a. The mos module 12 can be connected to the positive electrode column 4 and the negative electrode column 6 by glue, ultrasonic welding or laser welding, and the electrical connection is realized by connecting the positive electrode column 4 and the negative electrode column 6.

[0030] Both the positive electrode column 4 and the negative electrode column 6 are surrounded by a riveting block 3 or a quick-connect riveting block 11. The positive electrode column 4 and the negative electrode column 6 both penetrate through the riveting block 3 or the quick-connect riveting block 11. The positive electrode column 4 and the negative electrode column 6 are first assembled with the sealing ring 2 and then pass through the top cover plate 1 and the upper plastic, and finally the riveting block 3 or the quick-connect riveting block 11 is assembled and the top cover is riveted by the riveting process.

[0031] Sealing rings 2 are provided around both the positive terminal post and the negative terminal post. Both the positive terminal post 4 and the negative terminal post 6 penetrate through the riveting block 3, the positive sealing ring 2, and the negative sealing ring 15. The positive sealing ring 2 and the negative sealing ring 15 are located above the riveting block 3. The positive sealing ring 2 and the negative sealing ring 15 can seal the positive terminal post 4 and the negative terminal post 6, preventing the electrolyte in the battery from leaking from the positive terminal post 4 and the negative terminal post 6, and reducing the risk of electric leakage.

[0032] A negative upper plastic 7 is provided at the top of the negative terminal post 6, and a positive upper plastic 5 is provided at the top of the positive terminal post 4. Both the negative upper plastic 7 and the positive upper plastic 5 are formed by injection molding. The injection-molded upper plastics can perfectly fit the positive terminal post 4 and the negative terminal post 6, providing insulation and sealing for the positive terminal post 4 and the negative terminal post 6 to prevent electric leakage and liquid leakage.

[0033] Round holes are provided at both ends of the top cover plate 1 corresponding to the positive terminal post 4 and the negative terminal post 6. Both the positive terminal post 4 and the negative terminal post 6 penetrate through the top cover plate 1 and the lower plastic 8 through the round holes. The round holes are machined according to the dimensions of the positive terminal post 4 and the negative terminal post 6. Thus, the positive terminal post 4 and the negative terminal post 6 pass through the top cover plate 1 and are connected by connecting pieces, and then connected to the positive ear and the negative ear to achieve electrical connection.

[0034] An explosion-proof film 9 is provided in the middle of the top cover plate 1. A pressure relief hole penetrating the top cover plate 1 is provided at the bottom end of the explosion-proof film 9. The explosion-proof film 9 is located in the pressure relief hole. When the internal pressure of the battery cell is too high, the accumulated pressure inside the battery cell will break open the explosion-proof film 9, effectively preventing the battery cell from exploding.

[0035] An explosion-proof valve sticker 10 is provided at the top of the explosion-proof film 9. The explosion-proof valve sticker 10 is located in the pressure relief hole. The combination of the explosion-proof film 9 and the explosion-proof valve sticker 10 does not exceed the end face of the top cover plate 1. Not exceeding the end face of the top cover plate 1 can effectively protect the explosion-proof film 9 and the explosion-proof valve sticker 10 from being scratched or damaged by other external objects;

[0036] The protective film is located above the explosion-proof film 9. The explosion-proof film 9 can break when the internal pressure of the battery cell reaches the critical point, effectively preventing the battery cell from exploding due to excessive internal pressure. At the same time, the protective film can protect the explosion-proof film 9 from external influences.

Claims

1. A MOS quick-connect top cover, characterized in that, It includes a top cover plate and further includes: A positive pole column, installed at one end of the top cover plate; A negative pole column, the negative pole column includes a first negative pole column and a second negative pole column, the first negative pole column is installed beside the positive pole column, and the second negative pole column is located at the end of the top cover plate symmetrical to the positive pole column; A quick-connect riveting block, installed at the bottom ends of the positive pole column and the first negative pole column, and at least one quick-connect socket is provided on the quick-connect riveting block; A mos module, arranged between the positive pole column and the first negative pole column, at least one quick-connect joint is provided at the bottom end of the mos module, the quick-connect joint is inserted into the quick-connect socket, the bottom end of the mos module contacts the quick-connect riveting block, and the top end of the mos module contacts the bottom ends of the positive pole column and the first negative pole column.

2. The MOS quick-connect top cover according to claim 1, characterized in that, The quick-connect joint is in a compressed state when inserted into the quick-connect socket.

3. A MOS quick-connect top cover according to claim 1, characterized in that, A riveting block is provided at the bottom end of the second negative pole column, and both the quick-connect riveting block and the riveting block are snap-fitted on the top cover plate.

4. A MOS quick-connect top cover according to claim 1, characterized in that, A positive sealing ring is provided around the outside of the positive pole column, negative sealing rings are sleeved outside the first negative pole column and the second negative pole column, there is no gap between the positive sealing ring and the positive pole column, and there is no gap between the negative sealing rings and the first negative pole column and the second negative pole column.

5. A MOS quick-connect top cover according to claim 1, characterized in that, A positive upper plastic is provided on the positive pole column, negative upper plastics are provided at the top ends of the first negative pole column and the second negative pole column, and both the positive upper plastic and the negative upper plastics are integrally formed by injection molding.

6. The MOS quick-connect top cover according to claim 1, characterized in that, A lower plastic is provided at the bottom end of the top cover plate, and the positive pole column, the first negative pole column and the second negative pole column all penetrate through the top cover plate and the lower plastic.

7. A MOS quick-connect top cover according to claim 1, characterized in that, An explosion-proof film is provided in the middle of the top cover plate, a pressure relief hole penetrating through the top cover plate is provided at the bottom end of the explosion-proof film, and the explosion-proof film is located in the pressure relief hole.

8. A MOS quick-connect top cover according to claim 7, characterized in that, An explosion-proof valve sticker is provided at the top end of the explosion-proof film, the explosion-proof valve sticker is located in the pressure relief hole, and the combination of the explosion-proof film and the explosion-proof valve sticker does not exceed the end face of the top cover plate.

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