Connecting panel of sodium ion energy storage battery box

Abstract

The utility model discloses a sodium ion energy storage battery box connecting panel which comprises a panel base, a panel base assembly is arranged on the end face of one side, facing the interior of a battery box, of the panel base, and a panel accessory assembly is arranged on the end face of one side, facing the exterior of the battery box, of the panel base. A positive electrode connector and a negative electrode connector in a panel accessory assembly are arranged on a panel base in a protruding mode, and the panel base is connected with a battery box in a fastening mode through a rivet nut and a screw in a panel base assembly. Therefore, the serial cables can be connected vertically, the length of the cables is shortened, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of connection panel structures, in particular to a connection panel for a sodium-ion energy storage battery box. Background Art

[0002] Due to the discontinuous, unstable and uncontrollable characteristics of renewable energy power generation such as solar energy and wind energy, in order to solve the safety and stability impacts brought by their large-scale integration into the power grid, vigorously developing an electrochemical energy storage system with characteristics such as fast response speed, high conversion efficiency, and flexible configuration method is an important technical support for improving the utilization efficiency of photovoltaic power and ensuring the safe operation of the power grid.

[0003] Sodium-ion battery energy storage, as a new energy storage technology, has the characteristics of long cycle life, low cost, high safety, and good low-temperature performance. However, once a sodium-ion battery undergoes thermal runaway, the gas generation amount is more than three times that of a lithium battery. Therefore, when designing a sodium-ion battery box, it is necessary to consider the pressure relief of the battery box to prevent explosion. Summary of the Invention

[0004] Purpose of the Utility Model: The purpose of the utility model is to provide a connection panel for a sodium-ion energy storage battery box, which can facilitate the connection of cables and timely relieve pressure in the face of the increase in internal pressure of the battery box to prevent explosion.

[0005] Technical Solution: A connection panel for a sodium-ion energy storage battery box described in the utility model includes a panel base. A panel base component is arranged on the end face of the panel base facing the inside of the battery box, and a panel fitting component is arranged on the end face of the panel base facing the outside of the battery box. The positive connector and the negative connector in the panel fitting component are protrudingly arranged on the panel base, and the panel base is fixedly connected to the battery box through the blind rivet nut and the screw in the panel base component.

[0006] Preferably, a housing for accommodating the positive connector and the negative connector protrudingly arranged on the panel base is arranged on the end face of the panel base facing the outside of the battery box. A pressure relief notch is arranged on the inner wall of the housing, and the inner wall thickness of the housing where the pressure relief notch is located is thinner than the inner wall thickness of other parts of the housing.

[0007] Preferably, the panel base component further includes a press rivet nut. The press rivet nut is arranged in the housing and is fixedly connected to the positive connector and the negative connector through screws.

[0008] Preferably, the blind rivet nuts are evenly distributed around the edge of the panel base.

[0009] Preferably, the panel fitting assembly further includes a fire communication port, an explosion-proof pressure relief port, and a fire nozzle port. The fire communication port, the explosion-proof pressure relief port, and the fire nozzle port are sequentially arranged on the panel base and are fixedly connected to the panel base through nuts.

[0010] Preferably, there is at least one explosion-proof pressure relief port.

[0011] Preferably, a sealing ring is further arranged on the end face of the panel base on the side facing the outside of the battery box. The sealing ring covers the end face of the panel base on the side facing the outside of the battery box. Round holes are arranged on the sealing ring, and the round holes are arranged in one-to-one correspondence with the rivet nuts. The diameter of the round hole is larger than the outer diameter of the rivet nut.

[0012] Preferably, the sealing ring is fixed on the panel base through 3M double-sided tape.

[0013] Beneficial effects: Compared with the prior art, the present utility model has the following advantages:

[0014] (1). In the present application, the positive connector and the negative connector are protrudingly arranged on the panel base, so that the series cables can be connected straight up and down, shortening the length of the cables and saving costs;

[0015] (2). In the present application, the design of the pressure relief notch can ensure that when the pressure inside the battery box increases, the housing at the pressure relief notch position can be preferentially damaged, thereby releasing the gas inside the battery box and preventing the battery box from exploding. Description of the Drawings

[0016] Figure 1 It is a perspective view of one angle of the present utility model.

[0017] Figure 2 It is a perspective view of another angle of the present utility model.

[0018] Figure 3 It is a perspective view when a single present utility model is installed on the battery box.

[0019] Figure 4 It is a schematic diagram after multiple battery boxes installed with the present utility model are connected in series.

[0020] Among them: 1. Panel base; 2. Battery box; 3. Positive connector; 4. Negative connector; 5. Rivet nut; 6. Series cable; 7. Housing; 8. Pressure relief notch; 9. Press rivet nut; 10. Fire communication port; 11. Explosion-proof pressure relief port; 12. Fire nozzle port; 13. Sealing ring; 14. Round hole. Specific Embodiments

[0021] The technical solutions of the present utility model will be further described below with reference to the drawings.

[0022] See the appendix Figures 1 to 4 Figure. The connection panel of the sodium-ion energy storage battery box shown in the present utility model includes a panel base 1. A panel base assembly is provided on the end face of the panel base 1 on the inner side facing the battery box 2, and a panel fitting assembly is provided on the end face of the panel base 1 on the outer side facing the battery box 2. The positive connector 3 and the negative connector 4 in the panel fitting assembly are protrudingly arranged on the panel base 1. The panel base 1 is fixedly connected to the battery box 2 through the rivet nut 5 and the screw in the panel base assembly.

[0023] The positive connector 3 and the negative connector 4 are protrudingly arranged on the panel base 1, which is convenient for the series connection cable 6 to be connected straight up and down, shortening the cable length and saving costs. If the positive connector 3 and the negative connector 4 are designed into a flat structure, the series connection cable 6 has to be connected by winding a C-shaped bend, otherwise it will interfere with the liquid cooling plate on the battery box 5.

[0024] In this embodiment, a housing 7 for accommodating the positive connector 3 and the negative connector 4 protrudingly arranged on the panel base 1 is provided on the end face of the panel base 1 on the outer side facing the battery box 2. A pressure relief notch 8 is provided on the inner wall of the housing 7. The thickness of the inner wall of the housing 7 at the position of the pressure relief notch 8 is thinner than the thickness of the inner wall of other parts of the housing 7. The setting of the pressure relief notch 8 can ensure that when the internal pressure of the battery box 2 rises, the housing 7 at the position of the pressure relief notch 8 can be preferentially damaged, thereby releasing the gas in the battery box 2 and preventing the battery box from exploding.

[0025] In this embodiment, the panel base assembly further includes a press rivet nut 9. The press rivet nut 9 is arranged in the housing 7 and is fixedly connected to the positive connector 3 and the negative connector 4 through screws.

[0026] In this embodiment, the rivet nuts 5 are evenly distributed around the edge of the panel base 1, which is convenient for the overall force to be more uniform when fixedly connected to the battery box 2 through screws.

[0027] In this embodiment, the panel fitting assembly further includes a fire communication port 10, an explosion-proof pressure relief port 11 and a fire nozzle port 12. The fire communication port 10, the explosion-proof pressure relief port 11 and the fire nozzle port 12 are sequentially arranged on the panel base 1 and are fixedly connected to the panel base 1 through nuts.

[0028] In this embodiment, there is at least one explosion-proof pressure relief port 11. When the pressure relief notch 8 is not used as the pressure relief point, multiple explosion-proof pressure relief ports 11 can be set for pressure relief to prevent the battery box 2 from exploding.

[0029] In this embodiment, a sealing ring 13 is further provided on the end face of the panel base 1 facing the outside of the battery box 2. The sealing ring 13 is fixedly covered on the end face of the panel base 1 facing the outside of the battery box 2 through 3M double-sided tape. A round hole 14 is provided on the sealing ring 13. The round holes 14 are arranged in one-to-one correspondence with the blind rivet nuts 5. The diameter of the round hole 14 is larger than the outer diameter of the blind rivet nut 5. After the panel base 1 is fixedly connected to the battery box 2 by screws using the blind rivet nuts 5, the sealing ring 13 at the round hole 14 is compressed by force to form a sealing surface, ensuring the sealing performance at the round hole 14.

[0030] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A sodium ion energy storage battery box connection panel, comprising a panel base, characterized in that: A panel base assembly is arranged on the end surface of the panel base facing the interior of the battery box, and a panel accessory assembly is arranged on the end surface of the panel base facing the exterior of the battery box. The positive connector and the negative connector in the panel accessory assembly are protrudingly arranged on the panel base, and the panel base is fastened to the battery box by rivet nuts and screws in the panel base assembly.

2. A sodium ion energy storage battery box connection panel according to claim 1, characterized in that: A shell for accommodating the positive connector and the negative connector protrudingly arranged on the panel base is arranged on the end face of the panel base facing the outside of the battery box, and a pressure relief notch is arranged on the inner wall of the shell. The thickness of the inner wall of the shell where the pressure relief notch is located is thinner than the thickness of the inner wall of other parts of the shell.

3. A sodium ion energy storage battery box connection panel according to claim 2, characterized in that: The panel base assembly also includes a rivet nut, which is arranged in the shell and is fastened to the positive connector and the negative connector by screws.

4. A sodium ion energy storage battery box connection panel according to claim 1, characterized in that: The rivet nuts are evenly distributed around the edge of the panel base.

5. A sodium ion energy storage battery box connection panel according to claim 1, characterized in that: The panel accessory assembly also includes a fire communication port, an explosion-proof pressure relief port and a fire nozzle port. The fire communication port, explosion-proof pressure relief port and fire nozzle port are sequentially arranged on the panel base and are fastened to the panel base by nuts.

6. A sodium ion energy storage battery box connection panel according to claim 5, characterized in that: There is at least one explosion-proof pressure relief port.

7. A sodium ion energy storage battery box connection panel according to claim 1, characterized in that: A sealing ring is also provided on the end face of the panel base facing the outside of the battery box. The sealing ring covers the end face of the panel base facing the outside of the battery box. A circular hole is provided on the sealing ring. The circular holes are arranged in a one-to-one correspondence with the rivet nuts. The aperture of the circular hole is larger than the outer diameter of the rivet nut.

8. A sodium ion energy storage battery box connection panel according to claim 7, characterized in that: The sealing ring is fixed on the panel base by 3M double-sided adhesive.

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