Battery temperature control tray

Abstract

The utility model discloses a battery temperature control tray which comprises a tray body and a heat exchange assembly, and a containing cavity is formed in the tray body. The heat exchange assembly comprises a plurality of heat exchange bag bodies and a connecting pipe body, the plurality of heat exchange bag bodies are arranged in the accommodating cavity at intervals, and a single battery cell is placed between every two adjacent heat exchange bag bodies; a cavity capable of being filled with a fluid medium is formed in each heat exchange bag body, the connecting pipe body is connected to the cavity of each heat exchange bag body, and the connecting pipe body is used for introducing an external fluid medium for temperature control, so that the heat exchange bag bodies are expanded to be tightly attached to the single battery cells so as to carry out temperature control and pressurization on the single battery cells. According to the technical scheme, the battery production energy consumption can be reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery temperature control tray. BACKGROUND

[0002] In the activation process of power battery production, when the battery is charged and discharged, it is necessary to ensure that the battery environment is in a stable temperature range, such as 45 DEG C. At present, the common charging and discharging equipment is mostly placed in the room controlled by the environment, and the stable temperature in the equipment storage site is maintained by controlling the temperature of the room. The traditional constant temperature room heating mode has the problems of slow heating speed, high energy consumption and low heating efficiency. This may lead to too long heating time, thereby increasing the production cost and affecting the production efficiency. SUMMARY

[0003] The main purpose of the utility model is to provide a battery temperature control tray, which aims to reduce the energy consumption in battery production and reduce the production cost.

[0004] To achieve the above purpose, the battery temperature control tray provided by the utility model comprises:

[0005] A tray body is provided with a containing cavity in the tray body;

[0006] A heat exchange assembly comprises a plurality of heat exchange capsules and a connecting pipe body, a plurality of heat exchange capsules are arranged in the containing cavity at intervals, and each adjacent two heat exchange capsules are used for placing single battery cells;

[0007] Each heat exchange capsule forms a cavity that can be filled with fluid medium, the connecting pipe body is connected to the cavity of each heat exchange capsule, the connecting pipe body is used for introducing external fluid medium for temperature control, so that the heat exchange capsule is expanded and tightly attached to the single battery cell to control the temperature and pressure of the single battery cell.

[0008] Preferably, the connecting pipe body comprises a liquid inlet main pipe body, a liquid outlet main pipe body, a plurality of liquid inlet branch pipes and a plurality of liquid outlet branch pipes, the heat exchange capsule is provided with a liquid inlet and a liquid outlet, one end of each liquid inlet branch pipe is communicated with the liquid inlet main pipe body, the other end is communicated with the liquid inlet of the corresponding heat exchange capsule, one end of each liquid outlet branch pipe is communicated with the liquid outlet main pipe body, and the other end is communicated with the liquid outlet of the corresponding heat exchange capsule.

[0009] Preferably, the liquid inlet main pipe body is located below the liquid outlet main pipe body.

[0010] Preferably, a first self-sealing joint is arranged at the liquid inlet pipe opening of the liquid inlet main pipe body, and a second self-sealing joint is arranged at the liquid outlet pipe opening of the liquid outlet main pipe body.

[0011] Preferably, the tray body is provided with a first fixing sheet metal, which covers and fixes the liquid inlet main body to the bottom of the tray body.

[0012] Preferably, the tray body is provided with a second fixing sheet metal, which covers and fixes the liquid outlet main body adjacent to it on the side plate of the tray body.

[0013] Preferably, the tray body has a first hole and a second hole, the first hole being for the first self-sealing connector to pass through, and the second hole being for the second self-sealing connector to pass through.

[0014] Preferably, each of the individual battery cells is provided with battery limiting blocks on both sides along the first direction, and a slot is formed between two adjacent battery limiting blocks along the second direction, and the heat exchange bladder is engaged in the slot on both sides along the first direction.

[0015] Preferably, the bottom of the battery limiting block is provided with a protrusion, which is used to support the single battery cell.

[0016] Compared with existing technologies, this invention uses a heat exchange bladder to compress the individual battery cell. During charging and discharging, the heat exchange bladder adapts to the shape of the individual battery cell through adaptive elastic deformation, ensuring that the surface of the heat exchange bladder consistently compresses the surface of the individual battery cell. When compression is required, a connecting tube fills the cavity with a fluid medium. When unloading the individual battery cell, the cavity is either emptied or slightly filled with fluid medium, facilitating the removal and placement of the individual battery cell. Furthermore, by adjusting the compression force of the heat exchange bladder on the individual battery cell, it avoids excessive force leading to dents or other cosmetic defects in the cell's shell, or insufficient force causing lithium plating. This design allows for the compression, disassembly, and temperature control of individual battery cells by introducing or extracting fluid media into the heat exchange bladder. This eliminates the need for additional pressurization devices or temperature control devices during battery charging and discharging. By using a tray-like structure for liquid temperature control and confining each battery, the design effectively manages the pressurization and temperature of individual battery cells, reducing energy consumption and production costs during battery charging and discharging. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of the battery temperature control tray of this utility model;

[0018] Fig. 2 This is a schematic diagram of the internal structure of the battery temperature control tray of this utility model without the tray body.

[0019] Fig. 3This is a schematic diagram of the connecting tube and battery limiting block in the battery temperature control tray of this utility model.

[0020] Reference numerals: 100, Tray body; 101, Receiving cavity; 210, Heat exchanger body; 400, Individual battery cell; 310, Main liquid inlet pipe; 320, Main liquid outlet pipe; 311, Liquid inlet branch pipe; 321, Liquid outlet branch pipe; 313, First self-sealing connector; 314, Second self-sealing connector; 510, First fixing sheet metal; 520, Second fixing sheet metal; 121, First hole; 131, Second hole; 600, Battery limiting block; 610, Slot; 620, Protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Fig. 1 to Fig. 3 This utility model proposes a battery temperature control tray.

[0023] The battery temperature control tray includes a tray body 100 and a heat exchange assembly. The tray body 100 has a receiving cavity 101. The heat exchange assembly includes multiple heat exchange bladders 210 and a connecting tube. The multiple heat exchange bladders 210 are spaced apart in the receiving cavity 101. Each pair of adjacent heat exchange bladders 210 is used to place a single battery cell 400. Each heat exchange bladder 210 has a cavity that can be filled with a fluid medium. The connecting tube is connected to the cavity of each heat exchange bladder 210. The connecting tube is used to introduce an external fluid medium for temperature control, so that the heat exchange bladder 210 expands and pressurizes the single battery cell 400 to control the temperature and pressurize the single battery cell 400.

[0024] Specifically, the tray body 100 provides the mounting base for the heat exchange bladder 210 and can also support the individual battery cells 400. The tray body 100 can be a frame structure or a box structure, which is not limited here. The tray body 100 can be integrally molded or assembled by splicing. The heat exchange bladder 210 is a flexible container capable of containing a fluid medium. It can expand and contract by filling it with a fluid medium and utilizing the fluidity of the fluid medium to achieve elastic deformation. The fluid medium filled into the heat exchange bladder 210 can be water, oil, etc. The heat exchange bladder 210 has a flexible overall structure and is made of a material with high thermal conductivity, such as silicone, so only the thermal conductivity of the heat exchange bladder 210 is required. The system ensures that when a heating liquid is introduced into the heat exchange bladder 210, the heat exchange bladder 210 can exchange heat with the individual battery cell 400, transferring heat to the individual battery cell 400 to provide heating; conversely, when a cooling liquid is introduced into the heat exchange bladder 210, the heat exchange bladder 210 can exchange heat with the individual battery cell 400 to provide cooling. The heat exchange bladder 210 is installed on the tray body 100, either on the tray body or embedded within it. The connection between the two can be detachable or indirect, achieved through other components.

[0025] The heat exchange bladder 210 is used to compress the individual battery cell 400. During charging and discharging, the heat exchange bladder 210 can adaptively deform elastically according to the shape of the individual battery cell 400, thus ensuring that the surface of the heat exchange bladder 210 always compresses the surface of the individual battery cell 400. When it is necessary to compress the individual battery cell 400, a fluid medium is filled into the cavity through the connecting tube. When unloading the individual battery cell 400, the cavity is kept empty or slightly filled with fluid medium, which facilitates the removal and placement of the individual battery cell 400. At the same time, by adjusting the compression force of the heat exchange bladder 210 on the individual battery cell 400, it is possible to avoid the individual battery cell 400 from having a dented shell or other appearance defects due to excessive force, or lithium plating due to insufficient force. This configuration allows for the compression, disassembly, and temperature control of individual battery cells 400 by introducing or extracting fluid medium into the heat exchange bladder 210. This eliminates the need for additional pressurization devices or temperature control devices during battery charging and discharging. The tray-based liquid temperature control and confinement of each battery effectively manages the pressurization and temperature of the individual cells 400. Compared to traditional constant temperature chambers, this reduces energy consumption and production costs during battery charging and discharging.

[0026] Please see Fig. 1 to Fig. 3Preferably, the connecting pipe body includes a liquid inlet main body 310, a liquid outlet main body 320, a plurality of liquid inlet branch pipes 311 and a plurality of liquid outlet branch pipes 321. The heat exchange bladder 210 is provided with a liquid inlet and a liquid outlet. One end of the plurality of liquid inlet branch pipes 311 is connected to the liquid inlet main body 310 and the other end is connected to the liquid inlet of the corresponding heat exchange bladder 210. One end of the plurality of liquid outlet branch pipes 321 is connected to the liquid outlet main body 320 and the other end is connected to the liquid outlet of the corresponding heat exchange bladder 210. Specifically, the liquid inlet main body 310 and the liquid outlet main body 320 span across each heat exchange bladder 210, making the paths connecting each liquid inlet branch pipe 311 and each liquid outlet branch pipe 321 to the liquid inlet main body 310 and the liquid outlet main body 320 shorter. The liquid inlet main body 310 and the liquid outlet main body 320 serve as the medium for inputting the temperature-controlled fluid medium into the heat exchange bladder 210. Both can be connected to an external pump to provide power for the input temperature-controlled fluid medium, so that the temperature-controlled fluid medium flows sequentially through the liquid inlet branch pipe 311, the liquid inlet main body 310, the heat exchange bladder 210, the liquid outlet branch pipe 321, the liquid outlet main body 320, and the heat exchange bladder 210, thereby forming a heat exchange circulation loop to control the temperature of the individual battery cell 400.

[0027] Please see Fig. 1 to Fig. 2 To ensure that the fluid medium can fill the heat exchange bladder 210, preferably, the inlet main pipe 310 is located below the outlet main pipe 320. In this way, the fluid medium enters from the lower inlet main pipe 310 and fills the heat exchange bladder 210, so that the fluid medium can fill the heat exchange bladder 210. The expansion of the heat exchange bladder 210 can compress and restrain the individual battery cells 400, and flow out from the upper outlet main pipe 320 to form a heat exchange circulation loop.

[0028] Please see Fig. 1 to Fig. 3 Preferably, a first self-sealing connector 313 is provided at the inlet of the liquid inlet main body 310, and a second self-sealing connector 314 is provided at the outlet of the liquid outlet main body 320. Specifically, when it is necessary to introduce external fluid medium into the heat exchange bladder 210, the worker removes the first self-sealing connector 313 and the second self-sealing connector 314, connects the external pipeline to the inlet and outlet of the liquid inlet, and introduces or extracts fluid medium into or from the heat exchange bladder 210.

[0029] Please see Fig. 1 to Fig. 2 Preferably, a first fixing sheet metal 510 is provided on the tray body 100, which covers and fixes the liquid inlet main body 310 to the bottom of the tray body 100. In this way, the first fixing sheet metal 510 serves to fix the liquid inlet main body 310 and prevent the liquid inlet main body 310 from being unstable.

[0030] Please see Fig. 1 to Fig. 2Preferably, a second fixing sheet metal 520 is provided on the tray body 100, which presses and fixes the liquid outlet main body 320 adjacent to it onto the side plate of the tray body 100. In this way, the second fixing sheet metal 520 serves to fix the liquid outlet main body 320 on the side plate of the tray body 100, preventing the liquid outlet main body 320 from being unstable.

[0031] Please see Fig. 1 Preferably, the tray body 100 has a first hole 121 and a second hole 131. The first hole 121 is used for the first self-sealing connector 313 to pass through, and the second hole 131 is used for the second self-sealing connector 314 to pass through.

[0032] Please see Fig. 2 and Fig. 3 Preferably, each individual battery cell 400 has battery limiting blocks 600 on both sides along the first direction, and adjacent battery limiting blocks 600 are spliced ​​together to form a slot 610 along the second direction. The heat exchange bladder 210 is engaged in the slot 610 along both sides along the first direction. In this embodiment, the first direction is the length direction of the heat exchange bladder 210, and the second direction is the thickness direction of the heat exchange bladder 210. By engaging the heat exchange bladder 210 in the slot 610 formed by splicing the battery limiting blocks 600, the fixing stability of the heat exchange bladder 210 is improved, and the fixing stability of the individual battery cell 400 is maintained.

[0033] Please see Fig. 2 and Fig. 3 Preferably, the bottom of the battery limiting block 600 is provided with a protrusion 620, which is used to support the individual battery cell 400. In the front-to-back direction, the battery limiting blocks 600 can support the individual battery cell 400 relative to each other.

[0034] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. All equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A battery temperature control tray, characterized in that, The battery temperature control tray includes: The pallet body has a receiving cavity inside. A heat exchange assembly, comprising a plurality of heat exchange bladders and a connecting tube, wherein the plurality of heat exchange bladders are spaced apart within the receiving cavity, and a single battery cell is placed between each pair of adjacent heat exchange bladders. Each heat exchange bladder has a cavity that can be filled with a fluid medium. The connecting pipe is connected to the cavity of each heat exchange bladder. The connecting pipe is used to introduce an external fluid medium for temperature control, so that the heat exchange bladder expands and fits tightly against the individual battery cell to control the temperature and pressurize the individual battery cell.

2. The battery temperature control tray as described in claim 1, characterized in that, The connecting pipe body includes a liquid inlet main body, a liquid outlet main body, multiple liquid inlet branch pipes, and multiple liquid outlet branch pipes. The heat exchange bladder is provided with a liquid inlet and a liquid outlet. One end of each of the multiple liquid inlet branch pipes is connected to the liquid inlet main body, and the other end is connected to the liquid inlet of the corresponding heat exchange bladder. One end of each of the multiple liquid outlet branch pipes is connected to the liquid outlet main body, and the other end is connected to the liquid outlet of the corresponding heat exchange bladder.

3. The battery temperature control tray as described in claim 2, characterized in that, The main inlet pipe is located below the main outlet pipe.

4. The battery temperature control tray as described in claim 2, characterized in that, The inlet of the liquid inlet main body is provided with a first self-sealing connector, and the outlet of the liquid outlet main body is provided with a second self-sealing connector.

5. The battery temperature control tray as described in claim 2, characterized in that, The tray body is provided with a first fixing sheet metal, which covers and fixes the liquid inlet main body to the bottom of the tray body.

6. The battery temperature control tray as described in claim 5, characterized in that, The tray body is provided with a second fixing sheet metal, which covers and fixes the liquid outlet main body close to it on the side plate of the tray body.

7. The battery temperature control tray as described in claim 4, characterized in that, The tray body has a first hole and a second hole. The first hole is used for the first self-sealing connector to pass through, and the second hole is used for the second self-sealing connector to pass through.

8. The battery temperature control tray as described in any one of claims 1 to 7, characterized in that, Each of the individual battery cells is provided with battery limiting blocks on both sides along the first direction, and a slot is formed between two adjacent battery limiting blocks along the second direction. The heat exchange bladder is engaged in the slot along both sides along the first direction.

9. The battery temperature control tray as described in claim 8, characterized in that, The bottom of the battery limiting block is provided with a protrusion, which is used to support the single battery cell.

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