Battery module of high-stability air escape valve

Abstract

The utility model provides a battery module of a high-stability air release valve, one end of the battery module is provided with a connecting end, the surface of the other end of the battery module is provided with a pressure release valve, the surface of the connecting end is provided with a fire sprinkler, a nameplate, a communication interface and a cable interface, the nameplate is arranged on the middle surface of the connecting end, and the pressure release valve is arranged on the middle surface of the connecting end. The battery module is provided with a nameplate, the right end of the nameplate is vertically provided with a communication interface in a penetrating mode, the pressure release valve is embedded in the center of the end face of the battery module, and the fire-fighting nozzle and the pressure release valve which are originally arranged adjacently are improved to be arranged at the two ends of the battery module respectively, so that the fire-fighting nozzle can be fully filled into the battery module along with air flow; and the air flow is led out from the other end provided with the pressure release valve, so that each battery cell is fully wrapped by the air flow, the fire-fighting effect is improved, and the high stability of the pressure release valve and the high-performance effect of the fire-fighting spray head in the whole battery module are improved.

Description

Technical Field

[0001] This article belongs to the technical field of battery module fire protection, specifically a battery module with a high-stability air release valve Background Art

[0002] With the rapid development of the new energy industry, people's demand for the energy storage systems used in conjunction with it is gradually increasing.

[0003] Prismatic battery modules are composed of multiple single cells. Currently, to improve the integration efficiency of battery modules, single cells are arranged adjacent to each other with small gaps. This arrangement of cells is highly susceptible to heat diffusion. In existing battery modules, when a single cell experiences thermal runaway, it generates gas. When the internal pressure of the cell reaches a certain level, the explosion-proof valve on the cell opens, and gas is ejected from the valve. The gas ejected is high-temperature gas, generally exceeding 230°C, and is mixed with flames. When thermal runaway occurs, the high-temperature gas and flames spread to surrounding cells, causing adjacent cells to ignite a thermal runaway fire, which in turn leads to a more serious thermal runaway fire in the battery module.

[0004] The bleed valve and fire sprinkler in the existing battery module are close together. The bleed valve and fire sprinkler are both installed on the same battery module. When thermal runaway occurs and fire intervention is required, the fire inlet and bleed outlet are too close to each other. There is a possibility that gas will be ejected along the bleed valve, reducing the fire fighting effect. Utility Model Content

[0005] To address the aforementioned issues, this paper proposes a battery module with a high-stability air release valve. A connection terminal is provided at one end of the battery module, and a pressure relief valve is provided on the surface of the other end of the battery module. The connection terminal is provided with a fire sprinkler, a nameplate, a communication interface, and a cable interface. The nameplate is located on the central surface of the connection terminal. A communication interface is vertically penetrated through the right end of the nameplate. A cable interface is provided on the outer side of the left end of the nameplate. A fire sprinkler is provided on the outer side of the right end of the nameplate. A liquid cooling circulation interface is provided below the connection terminal. The pressure relief valve is a conductive pressure relief valve that is embedded in the center of the end face of the battery module. The inner end of the pressure relief valve is located between the arranged battery cells within the battery module. By improving the fire sprinkler and pressure relief valve, which were originally arranged adjacent to each other, to be respectively arranged at both ends of the battery module, the fire sprinkler can be fully filled into the interior of the battery module with the airflow and then be guided out from the other end of the pressure relief valve, thereby fully enveloping each battery cell with airflow, improving the fire fighting effect, and increasing the high stability of the pressure relief valve and the high performance of the fire sprinkler in the entire battery module.

[0006] The battery module is in the shape of a rectangular frame assembly module. A number of battery cells are arranged in an equidistant array inside the battery module. The center seam of the battery cells in the array is aligned with the vertical center line of the battery module. A liquid cooling pipeline is provided on the outside of each battery cell. The battery module with battery cells arranged in an equidistant array inside facilitates the integrated assembly of the battery module and the installation of liquid cooling pipelines. At the same time, it can ensure that the gaps between the battery cells are sufficient to facilitate the passage of fire sprinklers and fully cool each battery cell for fire fighting.

[0007] The fire sprinkler is a right-angle elbow type quick-connect interface. One end of the fire sprinkler is conductively connected to the end face of the battery module, and the other end of the fire sprinkler is flush with the side surface of the battery module. The right-angle fire sprinkler can not only be easily connected to the side, which is convenient for pipeline arrangement, but also is arranged at both ends of the battery module opposite to the pressure relief valve, thereby realizing the convection effect of the fire sprinkler and achieving a stable and efficient pressure relief environment, preventing the occurrence of premature pressure relief due to too close distance.

[0008] The nameplate is a riveted model nameplate. Several cable interfaces are arranged vertically and equidistantly on the right side of the surface of the nameplate. The cable interfaces run through the nameplate and the battery module and are internally connected to the battery module. The cable interfaces are independently sealed and arranged on the surface of the connection end. The interior of the cable interface is connected to the interior of the battery module. Because the original pressure relief valve is moved to the other end of the battery module, the cable interface and communication interface that were originally set adjacent to each other can be set at both ends of the nameplate respectively, which facilitates the routing and wiring of the cables inside the battery module and optimizes the internal structure of the battery module.

[0009] The internal circulation guide of the liquid cooling pipeline is connected to the liquid cooling circulation port, and the liquid cooling circulation port is vertically arranged on both sides below the connection end. The battery cells inside the battery module can be easily cooled through the liquid cooling pipeline.

[0010] Beneficial effects:

[0011] By improving the fire sprinkler and pressure relief valve that were originally set adjacent to each other to be set at both ends of the battery module respectively, the fire sprinkler can not only be fully filled into the interior of the battery module with the airflow, but also be exported from the other end where the pressure relief valve is set, so that the airflow can fully wrap each battery cell to improve the fire fighting effect, increase the high stability of the pressure relief valve in the overall battery module and the high performance of the fire sprinkler.

[0012] The battery module has cells arranged in an equidistant array inside, which facilitates the integration and assembly of the battery module and the installation of liquid cooling pipelines. At the same time, it can ensure that the gaps between the cells are sufficient to facilitate the passage of fire sprinklers and fully cool each cell for fire fighting.

[0013] The right-angled fire sprinkler can not only be easily docked on the side and convenient for pipe arrangement, but also is arranged at both ends of the battery module opposite to the pressure relief valve, thereby realizing the convection effect of the fire sprinkler and achieving a stable and efficient pressure relief environment, preventing the occurrence of premature pressure relief due to the distance being too close.

[0014] Because the original pressure relief valve is moved to the other end of the battery module, the cable interface and communication interface that were originally set adjacent to each other can be set at both ends of the nameplate respectively, which facilitates the routing and wiring of cables inside the battery module and optimizes the internal structure of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a battery module with a high-stability gas release valve;

[0016] Figure 2 This is a top view of the interior of a battery module with a high-stability gas release valve;

[0017] In the figure; 1. Battery module, 2. Battery cell, 3. Fire sprinkler, 4. Pressure relief valve, 5. Nameplate, 6. Communication interface, 7. Cable interface, 8. Liquid cooling circulation port. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0019] Battery module 1, battery cell 2, fire sprinkler 3, pressure relief valve 4, nameplate 5, communication interface 6, cable interface 7, liquid cooling circulation port 8.

[0020] like Figure 1 、 2 As shown;

[0021] A battery module with a high-stability air release valve, wherein a connection end is provided at one end of the battery module 1, and a pressure relief valve 4 is provided on the surface of the other end of the battery module 1, and a fire sprinkler 3, a nameplate 5, a communication interface 6 and a cable interface 7 are provided on the surface of the connection end. The nameplate 5 is provided on the middle surface of the connection end, and a communication interface 6 is provided vertically through the right end of the nameplate 5. A cable interface 7 is provided on the outer side of the left end of the nameplate 5, and a fire sprinkler 3 is provided on the outer side of the right end of the nameplate 5. A liquid cooling circulation interface is provided below the connection end, and the pressure relief valve 4 is a conductive pressure relief valve 4. The pressure relief valve 4 is embedded in the center of the end face of the battery module 1, and the inner end of the pressure relief valve 4 is provided between the arrangement gaps of the battery cells 2 inside the battery module 1. The battery module 1 is in the shape of a rectangular frame assembly module, and the interior of the battery module 1 is provided with several equidistant arrays. Dry battery cells 2, the battery cells 2 of the array are arranged with the center seam and the vertical center line of the battery module 1, and the outside of each battery cell 2 is outsourced with a liquid cooling pipeline, the fire sprinkler 3 is a quick-connect interface of a right-angle elbow type, one end of the fire sprinkler 3 is conductively connected to the end face of the battery module 1, and the other end of the fire sprinkler 3 is flush with the side surface of the battery module 1, the nameplate 5 is a riveted model nameplate 5, and a plurality of cable interfaces 7 are arranged vertically and equidistantly on the right side of the surface of the nameplate 5, the cable interface 7 passes through the nameplate 5 and the battery module 1 and is internally conductive with the battery module 1, the cable interface 7 is independently sealed and arranged on the surface of the connection end, the inside of the cable interface 7 is internally conductive with the battery module 1, the internal circulation of the liquid cooling pipeline is conductively connected to the liquid cooling circulation port 8, and the liquid cooling circulation port 8 is vertically arranged on both sides below the connection end.

[0022] Implementation examples;

[0023] During use, when the battery cell 2 is too stable and the fire sprinkler 3 needs to be used, the fire sprinkler 3 is used to cool the battery cell 2 inside the battery module 1 for fire prevention, and when the fire sprinkler 3 sprays air into the interior of the battery module 1, the gas will flow through the arrangement gaps between the battery cells 2, moving from one end of the battery module 1 to the other end of the battery module 1, and the over-pressure gas will be discharged from the pressure relief valve 4 through the pressure relief valve 4, so that the gas can fully reach all the battery cells 2 inside the battery module 1 for fire protection treatment.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery module with a high-stability air release valve, wherein one end of the battery module is provided with a connection end, characterized in that: A pressure relief valve is provided on the surface of the other end of the battery module, and a fire sprinkler, a nameplate, a communication interface and a cable interface are provided on the surface of the connecting end. The nameplate is provided on the middle surface of the connecting end, a communication interface is provided vertically through the right end of the nameplate, a cable interface is provided on the outside of the left end of the nameplate, a fire sprinkler is provided on the outside of the right end of the nameplate, and a liquid cooling circulation interface is provided below the connecting end. The pressure relief valve is a conductive pressure relief valve, and the pressure relief valve is embedded in the center of the end face of the battery module, and the inner end of the pressure relief valve is provided between the arrangement gaps of the battery cells inside the battery module.

2. A battery module with a high-stability air release valve according to claim 1, characterized in that: The battery module is in the shape of a rectangular frame assembly module, and a number of battery cells are arranged in an equidistant array inside the battery module. The center seam of the battery cells in the array is aligned with the vertical center line of the battery module, and a liquid cooling pipeline is provided on the outside of each battery cell.

3. The battery module with a high-stability air release valve according to claim 1, characterized in that: The fire sprinkler is a right-angle elbow quick-connect interface. One end of the fire sprinkler is conductively connected to the end face of the battery module, and the other end of the fire sprinkler is flush with the side surface of the battery module.

4. The battery module with a high-stability air release valve according to claim 1, characterized in that: The nameplate is a riveted model nameplate, and a number of cable interfaces are arranged vertically and equidistantly on the right side of the surface of the nameplate. The cable interfaces run through the nameplate and the internal conduction between the battery module and the battery module.

5. The battery module with a high-stability air release valve according to claim 1, characterized in that: The cable interface is independently and sealedly arranged on the surface of the connection end, and the interior of the cable interface is connected to the interior of the battery module.

6. The battery module with a high-stability air release valve according to claim 2, characterized in that: The internal circulation guide of the liquid cooling pipeline is connected to the liquid cooling circulation port, and the liquid cooling circulation port is vertically arranged on both sides below the connection end.

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