Side liquid cooling plate battery shell structure

Abstract

The utility model discloses a side-made liquid cooling plate battery shell structure, which comprises a battery shell ring frame, a plurality of heat-conducting partition plates and a side-mounted liquid cooling plate, a plurality of parallel heat-conducting partition plates are fixedly arranged in a frame cavity of the battery shell ring frame, one end side of each heat-conducting partition plate is provided with a partition plate slot, and the other end side of each heat-conducting partition plate is provided with a side-mounted liquid cooling plate. The outer side frame surface of the battery shell ring frame is provided with an out-frame slot, the side-mounted liquid cooling plates are inserted in the out-frame slot and the partition plate slot, each side-mounted liquid cooling plate is composed of a cold groove plate and a groove end strip, one end side of each cold groove plate is provided with a cold liquid plate groove, the groove end strip is mounted at a groove opening of the cold liquid plate groove, and the groove end strip is mounted in the groove opening of the cold liquid plate groove. And a liquid inlet hole and a liquid outlet hole are formed in the groove end strip. The utility model has the beneficial effects of uniform temperature distribution, improved performance and prolonged service life of the battery, convenient installation and maintenance, good sealing performance, compact structure and suitability for various application scenes.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a side-cooled liquid plate battery casing structure. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage technologies, battery performance and safety are receiving increasing attention. During battery operation, a large amount of heat is generated. If heat cannot be dissipated in a timely and effective manner, it will affect the battery's performance, lifespan, and even cause safety issues.

[0003] Currently, common battery cooling methods mainly include air cooling and liquid cooling. Liquid cooling is widely used due to its high efficiency. Traditional liquid-cooled plate battery casing structures usually place the liquid cooling plate at the bottom or top of the battery box, which has the following disadvantages:

[0004] When the liquid cooling plate is placed at the bottom or top, it can easily lead to uneven temperature distribution inside the battery. The part closer to the liquid cooling plate has good heat dissipation, while the part farther away from the liquid cooling plate has poor heat dissipation, thus affecting the overall performance and lifespan of the battery.

[0005] Installation and maintenance are difficult. When the liquid cooling plate malfunctions and needs to be repaired or replaced, the entire battery box often needs to be disassembled, which is complicated and costly.

[0006] The traditional method of combining liquid cooling plates with the battery housing may have sealing problems, which can easily lead to coolant leakage and affect battery safety. Utility Model Content

[0007] The purpose of this invention is to provide a side-cooled liquid plate battery casing structure to solve the above-mentioned problems.

[0008] This utility model achieves the above objectives through the following technical solutions:

[0009] A side-mounted liquid-cooled plate battery housing structure includes a battery housing ring frame, a thermally conductive partition, and a side-mounted liquid-cooled plate. Several parallel thermally conductive partitions are fixedly installed within the frame cavity of the battery housing ring frame. One end of each thermally conductive partition has a partition slot. An external slot is provided on the outer frame surface of the battery housing ring frame. The side-mounted liquid-cooled plate is inserted into both the external slot and the partition slot. The side-mounted liquid-cooled plate consists of a cooling groove plate and a groove end strip. One end of the cooling groove plate has a cooling liquid groove. The groove end strip is installed at the opening of the cooling liquid groove and has an inlet hole and a drain hole.

[0010] Furthermore, inlet and outlet end pieces are installed on the outer edges of both the inlet hole and the outlet hole.

[0011] Furthermore, the battery casing ring frame is formed by four plate frames, and the outer slot is provided on the outer plate surface of the plate frames.

[0012] Furthermore, the slot outside the frame is a C-shaped slot.

[0013] Furthermore, the coolant plate tank is equipped with a number of alternately distributed end bar side baffles and tank end side baffles.

[0014] Furthermore, a base plate is fixedly installed at the bottom of the battery casing ring frame.

[0015] Furthermore, the battery casing ring frame is provided with a plurality of frame edge strip holes that respectively match the outer slot of the frame and the partition slot.

[0016] The beneficial effects of this utility model are as follows: the side-mounted liquid cooling plate can make the coolant flow more evenly through the battery, effectively solving the problem of uneven temperature distribution in the traditional structure, and improving the battery performance and lifespan.

[0017] The liquid cooling plate can be repaired or replaced without disassembling the entire battery box, reducing maintenance costs and operational difficulty;

[0018] The sealed structure effectively prevents coolant leakage, improving battery safety.

[0019] The side-mounted liquid cooling plate design does not take up too much space, making the battery casing structure more compact and suitable for various application scenarios. Attached Figure Description

[0020] Figure 1 This is the structure of the side-mounted liquid-cooled plate battery housing described in this utility model. Figure 1 ;

[0021] Figure 2 This is the structure of the side-mounted liquid-cooled plate battery housing described in this utility model. Figure 2 ;

[0022] Figure 3 This is a diagram of the slot structure of the side-cooled liquid plate battery housing structure described in this utility model;

[0023] Figure 4 This is a cross-sectional view AA of the side-mounted liquid cooling plate of the battery housing structure described in this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Battery casing ring frame; 2. Thermally conductive separator; 3. Side-mounted liquid cooling plate; 31. Cold groove plate; 32. Groove end bar; 33. Inlet and outlet end pieces; 34. Cold liquid plate groove; 35. End bar side separator; 36. Groove end side separator; 4. Frame outer slot; 5. Separator slot; 6. Base plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-4 As shown, a side-mounted liquid-cooled plate battery housing structure includes a battery housing ring frame 1, a thermally conductive partition 2, and a side-mounted liquid-cooled plate 3.

[0028] Several parallel heat-conducting baffles 2 are installed and fixed inside the frame cavity of the battery casing ring frame 1. One end of the heat-conducting baffle 2 is provided with a baffle slot 5. The outer frame surface of the battery casing ring frame 1 is provided with an outer frame slot 4. A side-mounted liquid cooling plate 3 is inserted into both the outer frame slot 4 and the baffle slot 5. The side-mounted liquid cooling plate 3 carries away the heat of the battery module through the internal circulating cool liquid, so as to achieve rapid and uniform heat dissipation.

[0029] The side-mounted liquid cooling plate 3 is composed of a cooling groove plate 31 and a groove end strip 32. One end of the cooling groove plate 31 is provided with a coolant plate groove 34. The groove end strip 32 is installed at the groove opening of the coolant plate groove 34. The groove end strip 32 is provided with a liquid inlet hole and a liquid outlet hole to facilitate the entry and exit of coolant.

[0030] like Figures 1-4 As shown, this utility model also discloses the following more optimized specific structures:

[0031] Both the liquid inlet and the liquid outlet are equipped with inlet and outlet end pieces 33 on the outer edge of the hole, which facilitates the connection of two adjacent side-mounted liquid cooling plates 3 through pipes, so that the coolant flows in each side-mounted liquid cooling plate 3.

[0032] The battery casing frame 1 is composed of four plate frames, with two adjacent plate frames welded together, and the outer slot 4 is provided on the outer plate surface of the plate frame.

[0033] The outer slot 4 is a C-shaped slot, which can directly use C-shaped profiles to facilitate the insertion and limiting of the outermost side-mounted liquid cooling plate 3.

[0034] The coolant plate tank 34 is equipped with several alternately distributed end strip side baffles 35 and end side baffles 36. The end strip side baffles 35 and end side baffles 36 divide the coolant plate tank 34 into several interconnected cavities, allowing the coolant to flow inside.

[0035] A base plate 6 is fixedly installed at the bottom of the battery housing frame 1. The battery module is placed in the battery cavity separated by the heat-conducting partition 2. The top also needs to be covered with a housing cover (not shown) to realize the installation of the battery module.

[0036] The battery housing ring frame 1 is provided with several frame edge strip holes that match the outer slot 4 and the partition slot 5 respectively, so that the groove end strip 32 on the side-mounted liquid cooling plate 3 can extend to the outside of the battery housing ring frame 1. The contact position between the side-mounted liquid cooling plate 3 and the battery housing ring frame 1 is sealed by setting a sealing structure, such as a rubber sealing ring or sealing strip, to prevent coolant leakage.

[0037] The battery casing frame 1, thermally conductive partition 2, and side-mounted liquid cooling plate 3 are all made of high-strength, corrosion-resistant, and thermally conductive materials, such as aluminum alloy. They are lightweight, easy to handle and install, reducing transportation costs and labor intensity. Aluminum alloy has high strength and can withstand certain external impacts and pressures, ensuring the structural stability of the enclosure during use. At the same time, aluminum alloy is an excellent thermal conductive material, which can quickly conduct the heat generated inside to the external environment, effectively preventing damage to the equipment or reduction in equipment performance due to excessive internal temperature.

[0038] like Figures 1-4 The side-mounted liquid-cooled plate battery housing structure shown is used in which two adjacent side-mounted liquid-cooled plates 3 are connected in series via connecting pipes and inlet / outlet end pieces 33. The battery housing ring frame 1 and the thermally conductive partition 2 form the battery box. The side-mounted liquid-cooled plates 3 are detachably plugged into and fixed to the battery box. When thermal management-related problems occur in the battery pack, the side-mounted liquid-cooled plates 3 can be disassembled separately for inspection to quickly determine whether the fault is in the liquid cooling system, such as whether there is coolant leakage or pipe blockage. Compared with non-removable liquid-cooled plates, the fault point can be located more accurately, improving the efficiency of fault diagnosis. If the liquid-cooled plate is damaged, the detachable design means that only the liquid-cooled plate component needs to be replaced, rather than the entire battery pack, greatly saving maintenance costs. In addition, in some complex battery systems, it avoids the need for large-scale disassembly and repair of the entire battery pack due to liquid-cooled plate problems, reducing the workload and difficulty of maintenance.

[0039] Multiple side-mounted liquid cooling plates 3 are connected in series via pipes and hoses, allowing for fluid flow. Compared to traditional bottom or top liquid cooling plate structures, the longitudinal liquid cooling structure provides better heat dissipation and more uniform temperature within the battery pack. In traditional structures, the electrochemical reaction rates within the battery cells vary, with faster reaction rates in higher-temperature areas and slower reaction rates in lower-temperature areas. This leads to inconsistent utilization of active materials in different areas during charging and discharging, preventing the entire cell from reaching its full capacity. Over long-term use, this results in a gradual decrease in the actual usable capacity of the cell, and the different rates of capacity decay in different parts contribute to significant inconsistencies in the overall cell capacity. The side-mounted liquid cooling plates allow the coolant to flow more evenly through the battery, effectively solving the problem of uneven temperature distribution in traditional structures. This improves battery performance and lifespan. The side-mounted liquid cooling plate design does not occupy excessive space, making the battery casing structure more compact and suitable for various application scenarios.

[0040] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A side liquid cooling plate battery casing structure, characterized by: The application relates to a battery shell ring frame, heat-conducting partitions and side-mounted liquid cooling plates, a plurality of parallel heat-conducting partitions are fixedly arranged in the frame cavity of the battery shell ring frame, one end of the heat-conducting partitions is provided with a partition slot, the outer frame surface of the battery shell ring frame is provided with a frame outer slot, the frame outer slot and the partition slot are both provided with the side-mounted liquid cooling plates, the side-mounted liquid cooling plates are composed of a cold tank plate and a tank end strip, one end of the cold tank plate is provided with a cold liquid plate tank, the tank end strip is arranged at the tank opening of the cold liquid plate tank, and the tank end strip is provided with an inlet liquid hole and a discharge liquid hole. 2.The battery cell housing structure of claim 1, wherein: The outer side holes of the inlet liquid hole and the discharge liquid hole are both provided with inlet and outlet end pieces. 3.The battery cell housing structure of claim 1, wherein: The battery shell ring frame is formed by four plate frames, and the frame outer slot is arranged on the outer plate surface of the plate frame.

4. The battery cell housing structure of claim 1, wherein: The frame outer slot is a C-shaped slot.

5. The battery cell housing structure of claim 1, wherein: A plurality of alternately distributed end strip side partitions and tank end side partitions are arranged in the cold liquid plate tank.

6. The battery cell housing structure of claim 1, wherein: A bottom plate is fixedly arranged at the bottom of the battery shell ring frame.

7. The battery cell housing structure of claim 1, wherein: A plurality of frame edge strip holes matched with the frame outer slot and the partition slot are arranged on the battery shell ring frame.

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