Integrated multi-pole column cover plate

Abstract

The utility model discloses an integrated multi-pole column cover plate which comprises a cover plate body, a lower insulation pad, a positive integrated multi-pole column, a negative integrated multi-pole column, a sealing washer, a pressing plate insulation pad, a pressing plate and an explosion-proof membrane, the lower insulation pad is arranged on the lower surface of the cover plate body in an attached mode, and two sets of electrode through holes are formed in the cover plate body. Each group of electrode through holes is provided with two or more than two electrode through holes through which the integrated multi-pole columns can pass, the positive integrated multi-pole columns and the negative integrated multi-pole columns are respectively and fixedly arranged at the respective electrode through holes, the lower parts of the positive integrated multi-pole columns and the negative integrated multi-pole columns are fixedly connected with sealing washers, and the upper parts of the positive integrated multi-pole columns and the negative integrated multi-pole columns are connected with pressing plates communicated with the positive integrated multi-pole columns and the negative integrated multi-pole columns. And a pressing plate insulation pad is arranged between the positive and negative integrated multi-pole columns and the cover plate main body. According to the mode, the integrated multi-pole column cover plate provided with the two or more than two pole columns improves the overcurrent capability, and has the advantages of high energy density, long cycle life, low self-discharge rate, good heat dissipation performance and high safety.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an integrated multi-electrode cover plate. Background Technology

[0002] Traditional battery covers have positive and negative terminals, which are mostly single. The overcurrent of a terminal is related to the welding area; the larger the welding area, the better the overcurrent capacity. Currently, the overcurrent capacity of terminals is generally average. Due to the limited installation space in the terminal design, it is impossible to improve the overcurrent capacity by thickening the terminal. Therefore, multiple terminals are mostly used. Multiple terminals are mostly separate and need to be welded to the bottom connecting piece first. Welding is done around the outer ring from the bottom of the terminal. There is a welding break area between the separate terminal and the connecting piece, and the welding trajectory is broken. Similarly, the overcurrent area will be reduced, the overcurrent will be reduced, and the heat dissipation will be poor.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design an integrated multi-pole column cover. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an integrated multi-pole cover plate with two or more poles, which improves the overcurrent capability and has high energy density, long cycle life, low self-discharge rate, good heat dissipation and high safety.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An integrated multi-pole cover plate is provided, comprising a cover plate body, a lower insulating pad, positive and negative integrated multi-pole columns, a sealing gasket, a pressure plate insulating pad, a pressure plate, and an explosion-proof membrane. The lower insulating pad is fitted onto the lower surface of the cover plate body. Two sets of electrode through holes are provided on the cover plate body, each set having two or more electrode through holes through which the integrated multi-pole columns can pass. The positive and negative integrated multi-pole columns are respectively fixedly installed at their respective electrode through holes. A sealing gasket is fixedly connected to the lower part of the positive and negative integrated multi-pole columns. A pressure plate that communicates with the upper part of the positive and negative integrated multi-pole columns is connected to the pressure plate. A pressure plate insulating pad is provided between the positive and negative integrated multi-pole columns and the cover plate body. An explosion-proof mechanism is provided in the middle of the cover plate body, and an explosion-proof membrane is connected thereto.

[0006] Preferably, the integrated positive and negative electrode multi-electrode includes a plate-shaped portion and a cylindrical portion, wherein the plate-shaped portion extends upward and is provided with two or more cylindrical portions.

[0007] Preferably, the sealing gasket includes a connecting part and a sealing part. The upper end of the connecting part is provided with a sealing part that is one-to-one with the cylindrical part. The cylindrical part passes through the sealing part, and the sealing part is placed inside the electrode through hole.

[0008] Preferably, the electrode through hole is a stepped hole, with the diameter gradually decreasing from top to bottom.

[0009] Preferably, the lower insulating pad is provided with a first mounting hole for placing the plate-shaped part and a second mounting hole for placing the connecting part from bottom to top. The second mounting hole is stepped, and the outer edge of the connecting part is also stepped, and it is locked in the stepped second mounting hole. The stepped design avoids the connecting part and the cover plate body from being opposite each other through the vertical gap, so as to prevent conduction and improve the sealing performance.

[0010] Preferably, the pressure plate insulating pad is provided with a pressure plate groove for placing the pressure plate, the bottom of the pressure plate groove is provided with a clearance hole for the cylindrical part to pass through, the right angle of the pressure plate groove is provided with an anti-misalignment step, and the bottom of the pressure plate is provided with an anti-misalignment groove that matches it.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The integrated design of the positive and negative poles and the multi-pole integrated design increases the conduction cross-section and improves the current carrying capacity compared to the separate welding design.

[0013] Compared to the separate welding process, the integrated design has a simpler process and technology, lower manufacturing cost, and more stable performance.

[0014] An integrated multi-post cover plate with two or more posts has the advantages of high energy density, long cycle life, low self-discharge rate, good heat dissipation, and high safety, and can be applied to occasions that require meeting the above design requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the unfolded structure of an integrated multi-pole column cover plate.

[0016] Figure 2 This is a schematic diagram of the structure of an integrated multi-pole column cover plate.

[0017] Figure 3 This is a partial cross-sectional view of an integrated multi-pole column cover plate.

[0018] Figure 4 This is a partial structural diagram of an integrated multi-pole column cover plate.

[0019] Among them, 1. Cover plate body, 10. Electrode through hole, 2. Lower insulating pad, 21. First mounting hole, 22. Second mounting hole, 3. Positive and negative integrated multi-electrode post, 31. Plate-shaped part, 32. Column-shaped part, 4. Sealing gasket, 41. Connecting part, 42. Sealing part, 5. Pressure plate insulating pad, 50. Pressure plate groove, 51. Clearance hole, 52. Anti-misalignment step, 6. Pressure plate, 60. Anti-misalignment groove, 7. Explosion-proof membrane. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] Please see Figures 1 to 4 The embodiments of this utility model include:

[0022] An integrated multi-pole cover plate includes a cover plate body 1, a lower insulating pad 2, positive and negative integrated multi-pole pillars 3, a sealing gasket 4, a pressure plate insulating pad 5, a pressure plate 6, and an explosion-proof membrane 7.

[0023] A lower insulating pad 2 is attached to the lower surface of the cover plate body 1. Two sets of electrode through holes 10 are provided on the cover plate body 1. Each set of electrode through holes has two or more electrode through holes that allow the integrated multi-electrode post to pass through. The positive and negative integrated multi-electrode posts 3 are respectively fixedly installed at their respective electrode through holes 10. A sealing gasket 4 is fixedly connected to the lower part of the positive and negative integrated multi-electrode posts 3. A pressure plate 6 that is in communication with the positive and negative integrated multi-electrode posts 3 is connected to the upper part of the positive and negative integrated multi-electrode posts 3. A pressure plate insulating pad 5 is provided between the positive and negative integrated multi-electrode posts 3 and the cover plate body 1. An explosion-proof mechanism is provided in the middle of the cover plate body 1, and an explosion-proof membrane 7 is connected thereto.

[0024] The integrated positive and negative multi-pole post 3 includes a plate-shaped portion 31 and a cylindrical portion 32. The plate-shaped portion 31 extends upward and is provided with two or more cylindrical portions 32. The multiple cylindrical portions 32 increase the overcurrent capacity. There is a welding break area between the separate pole and the connecting piece. The welding trajectory is broken, so the overcurrent area will be reduced and the overcurrent will be reduced. The connection cross section of the cylindrical portion 32 and the plate-shaped portion 31 of the integrated multi-pole post is larger, which increases the overcurrent capacity compared with the separate welding.

[0025] The electrode through hole 10 is a stepped hole, with the diameter gradually decreasing from top to bottom.

[0026] The sealing gasket 4 includes a connecting part 41 and a sealing part 42. The upper end of the connecting part 41 is provided with a sealing part 42 that is one-to-one with the cylindrical part 32. The cylindrical part 32 passes through the sealing part 42, and the sealing part 42 is placed inside the electrode through hole 10.

[0027] The lower insulating pad 2 is provided with a first mounting hole 21 for placing the plate-shaped part 31 and a second mounting hole 22 for placing the connecting part 41 from bottom to top. The second mounting hole 22 is stepped, and the outer edge of the connecting part 41 is also stepped, and it is locked in the stepped second mounting hole 22. The stepped design prevents the connecting part 41 and the cover plate body 1 from being opposite each other through the vertical gap, so as to prevent conduction and improve the sealing performance.

[0028] The pressure plate insulating pad 5 is provided with a pressure plate groove 50 for placing the pressure plate 6. The bottom of the pressure plate groove 50 is provided with a clearance hole 51 for the cylindrical part 32 to pass through. The right angle of the pressure plate groove 50 is provided with an anti-misalignment step 52. The bottom of the pressure plate 6 is provided with an anti-misalignment groove 60 that matches it.

[0029] This utility model discloses an integrated multi-pole cover plate with two or more poles, which improves the overcurrent capability and has high energy density, long cycle life, low self-discharge rate, good heat dissipation and high safety.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An integrated multi-pole column cover plate, characterized in that: The device includes a cover plate body (1), a lower insulating pad (2), positive and negative integrated multi-electrode posts (3), a sealing gasket (4), a pressure plate insulating pad (5), a pressure plate (6), and an explosion-proof membrane (7). The lower insulating pad (2) is attached to the lower surface of the cover plate body (1). Two sets of electrode through holes (10) are provided on the cover plate body (1). Each set of electrode through holes has two or more electrode through holes that can be passed through by the integrated multi-electrode posts. The positive and negative integrated multi-electrode posts (3) are fixedly installed at their respective electrode through holes (10). The lower part of the positive and negative integrated multi-electrode posts (3) is fixedly connected to the sealing gasket (4). The upper part of the positive and negative integrated multi-electrode posts (3) is connected to the pressure plate (6) that is in communication with them. The pressure plate insulating pad (5) is provided between the positive and negative integrated multi-electrode posts (3) and the cover plate body (1). An explosion-proof mechanism is provided in the middle of the cover plate body (1), and an explosion-proof membrane (7) is connected to it.

2. The integrated multi-pole column cover plate according to claim 1, characterized in that: The integrated positive and negative pole multi-pole column (3) includes a plate-shaped part (31) and a columnar part (32), wherein the plate-shaped part (31) extends upward and is provided with two or more columnar parts (32).

3. The integrated multi-pole column cover plate according to claim 2, characterized in that: The sealing gasket (4) includes a connecting part (41) and a sealing part (42). The upper end of the connecting part (41) is provided with a sealing part (42) that is one-to-one with the cylindrical part (32). The cylindrical part (32) passes through the sealing part (42), and the sealing part (42) is placed inside the electrode through hole (10).

4. The integrated multi-pole column cover plate according to claim 1, characterized in that: The electrode through hole (10) is a stepped hole, with the diameter gradually decreasing from top to bottom.

5. The integrated multi-pole column cover plate according to claim 3, characterized in that: The lower insulating pad (2) is provided with a first mounting hole (21) for placing the plate-shaped part (31) and a second mounting hole (22) for placing the connecting part (41) from bottom to top. The second mounting hole (22) is stepped, and the outer edge of the connecting part (41) is also stepped, and it is locked in the stepped second mounting hole (22).

6. The integrated multi-pole column cover plate according to claim 1, characterized in that: The pressure plate insulating pad (5) is provided with a pressure plate groove (50) for placing the pressure plate (6). The bottom of the pressure plate groove (50) is provided with a clearance hole (51) for the cylindrical part (32) to pass through. The right angle of the pressure plate groove (50) is provided with an anti-mistake step (52). The bottom of the pressure plate (6) is provided with an anti-mistake groove (60) that matches it.

Images