Energy storage battery pack high-efficiency liquid cooling heat dissipation integrated device

Abstract

The utility model discloses a kind of high-efficiency liquid cooling heat dissipation integrated devices of energy storage battery pack, belong to energy storage battery pack heat dissipation technical field, including mounting plate, heat dissipation component and fixed component, connecting rod is connected heat dissipation component and fixed component on mounting plate;Heat dissipation component contains bottom plate, S-shaped liquid cooling plate, grid plate and condensing machine, liquid cooling plate is connected by communicating pipe, closed loop liquid cooling circulation is formed with condensing machine by inlet pipe, outlet pipe, bottom plate is equipped with vent hole auxiliary heat dissipation;Grid plate fixes battery bottom and ensures and liquid cooling plate is adhered;Fixed component contains fireproof cover and clamping plate, clamping plate is fixed battery top by clamping groove, fireproof cover is equipped with vent hole and screw ring, is stably connected by connecting rod.The utility model adopts liquid cooling and air cooling combination mode, heat dissipation efficiency is high and temperature is uniform;Fixed structure is reliable, fireproof cover and waterproof coating improve safety, applicable to high-power energy storage battery pack heat dissipation demand.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation devices for energy storage battery packs, and in particular to an integrated device for high-efficiency liquid cooling heat dissipation of energy storage battery packs. Background Technology

[0002] Against the backdrop of global energy transition and rapid development of renewable energy, energy storage technology, as a key component in balancing the power grid and optimizing energy allocation, is experiencing increasing demand. With the expansion of energy storage system scale and the increase in energy density, the heat generated by battery packs during charging and discharging increases dramatically, placing increasingly stringent demands on heat dissipation performance.

[0003] Traditional air-cooling technology suffers from the low specific heat capacity of air and slow heat transfer, making it difficult to quickly dissipate the concentrated heat generated by the battery pack. This is especially problematic in high-temperature environments or high-rate charge / discharge scenarios, where battery temperatures can easily exceed safe limits. Furthermore, air-cooling systems rely on air convection, which can lead to excessive temperature differences within the battery pack. Localized overheating accelerates battery aging, reduces overall lifespan, and may even trigger thermal runaway. In addition, existing cooling devices lack sufficient stability for securing the battery pack, making them prone to loosening due to vibration, posing a safety hazard, and lack effective fire protection measures. Therefore, there is an urgent need for a cooling device for energy storage battery packs that offers high heat dissipation efficiency, good temperature uniformity, stable fixation, and high safety. Utility Model Content

[0004] The purpose of this invention is to provide an integrated device for efficient liquid cooling of energy storage battery packs, which overcomes the defects of low heat dissipation efficiency, poor temperature uniformity, unstable fixation and insufficient safety in the existing technology, so as to achieve efficient heat dissipation, stable fixation and safety protection of battery packs.

[0005] To achieve the above objectives, this utility model provides an integrated high-efficiency liquid cooling heat dissipation device for energy storage battery packs, comprising:

[0006] The mounting plate has connecting rods vertically fixed at the four corners of its upper surface.

[0007] A heat dissipation component is located at the lower end of the connecting rod and on the upper surface of the mounting plate, for heat dissipation at the bottom of the battery pack.

[0008] A fixing component is provided at the upper end of the connecting rod, located above the heat dissipation component, and is used to fix the battery pack.

[0009] Preferably, the heat dissipation assembly includes a base plate, a liquid cooling plate, and a mesh plate;

[0010] The base plate has a first through hole at each of the four corners of its upper surface. The first through hole corresponds to the connecting rod. The base plate passes through the connecting rod and is in close contact with the upper surface of the mounting plate. Several ventilation holes are provided on both sides of the base plate.

[0011] The base plate is equipped with a plurality of liquid cooling plates inside, and adjacent liquid cooling plates are connected by a connecting pipe. One end of the liquid cooling plate on one side is connected to a liquid inlet pipe, and one end of the liquid cooling plate on the other side is connected to a liquid outlet pipe. A condenser is provided on one side of the base plate. One end of the liquid inlet pipe passes through an opening in the side wall of the base plate and is connected to the liquid outlet of the condenser. The other end of the liquid outlet pipe passes through an opening in the side wall of the base plate and is connected to the liquid inlet of the condenser.

[0012] The grid plate is located above the liquid cooling plate and is fixedly connected to the inner wall of the base plate. The grid plate is used to fix the bottom of the battery pack.

[0013] Preferably, the fixing component includes a fireproof cover and a locking plate;

[0014] The fireproof cover has a second through hole at each of the four corners of its lower surface, and the second through hole corresponds to the connecting rod. Several ventilation holes are provided on both sides of the fireproof cover.

[0015] The locking plate is fixedly connected to the lower surface of the fireproof cover. The lower surface of the locking plate is evenly provided with a plurality of locking grooves. The upper surface of the locking plate is evenly provided with square holes corresponding to the locking grooves. The square holes are connected to the interior of the locking grooves.

[0016] Preferably, a threaded ring is provided at the upper opening of the second through hole on the upper surface of the fireproof cover, and the threaded section at the upper end of the connecting rod passes through the second through hole and is threadedly connected to the inner wall of the threaded ring.

[0017] Preferably, the opening size of the square hole is smaller than the lower opening size of the engaging groove.

[0018] Preferably, the liquid cooling plate has an S-shaped structure and is evenly distributed inside the base plate, with the upper surface of the liquid cooling plate closely attached to the lower surface of the grid plate.

[0019] Therefore, the present invention employs the above-mentioned high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs, which has the following technical effects:

[0020] (1) High-efficiency heat dissipation and improved temperature uniformity: This application adopts a dual-mode heat dissipation that combines liquid cooling and air cooling. The S-shaped liquid cooling plate increases the heat exchange area with the bottom of the battery. Combined with the closed-loop circulation formed by the condenser, it can quickly absorb and remove the heat from the bottom of the battery. The ventilation holes of the bottom plate and the fireproof cover and the square holes of the snap-fit ​​plate form a complete airflow channel to achieve air-cooled auxiliary heat dissipation, effectively reduce the working temperature of the battery pack, improve temperature uniformity, and avoid performance degradation and lifespan decay caused by local overheating.

[0021] (2) Stable and reliable: The grid plate of this application precisely engages the bottom of the battery through the grid, and the engaging groove of the engaging plate tightly fixes the top of the battery. Combined with the threaded ring of the fireproof cover and the connecting rod, it securely connects the battery displacement in all directions, avoids battery loosening caused by vibration and shaking, and reduces safety hazards such as short circuits.

[0022] (3) Significantly enhanced safety: The fireproof cover of this application is made of fireproof material, which can prevent the fire from spreading when the battery catches fire abnormally; all parts are coated with polyurethane waterproof coating, which has good water resistance and corrosion resistance, effectively preventing moisture and corrosion, and further ensuring the safe operation of the energy storage system.

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an integrated high-efficiency liquid cooling heat dissipation device for energy storage battery packs according to this utility model;

[0025] Figure 2 This is a schematic diagram of the heat dissipation component of a high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the liquid cooling plate of a high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to this utility model.

[0027] Figure 4 This is a schematic diagram of the fixed component of a high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to this utility model.

[0028] Figure Labels

[0029] 1. Mounting plate; 11. Connecting rod; 2. Heat dissipation assembly; 21. Base plate; 211. First through hole; 22. Liquid cooling plate; 23. Mesh plate; 24. Connecting pipe; 25. Condenser; 26. Liquid outlet pipe; 27. Liquid inlet pipe; 3. Fixing assembly; 31. Fireproof cover; 311. Second through hole; 32. Locking plate; 321. Locking groove; 322. Square hole; 33. Threaded ring; 4. Ventilation hole. Detailed Implementation

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0031] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] like Figure 1 As shown, a high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs includes a mounting plate 1, a heat dissipation component 2, and a fixing component 3. Connecting rods 11 are vertically fixed at the four corners of the upper surface of the mounting plate 1 for supporting and connecting the heat dissipation component 2 and the fixing component 3.

[0033] like Figures 2 to 3 As shown, the heat dissipation assembly 2 includes a base plate 21, a liquid cooling plate 22, a mesh plate 23, and a condenser 25. The base plate 21 has a rectangular structure. The first through holes 211 at the four corners of the upper surface of the base plate 21 are clearance-fitted with the connecting rod 11. After passing through the connecting rod 11, the base plate 21 is in close contact with the upper surface of the mounting plate 1. Eight to ten ventilation holes 4 are provided on both sides of the base plate 21 for airflow. Five to eight S-shaped liquid cooling plates 22 are evenly distributed inside the base plate 21. Adjacent liquid cooling plates 22 are connected by a connecting pipe 24. One side of the liquid cooling plate 22 is connected to an inlet pipe 27, and the other side of the liquid cooling plate 22 is connected to an outlet pipe 26. Both the inlet pipe 27 and the outlet pipe 26 are high-temperature resistant hoses. The ends of the inlet pipe 27 and the outlet pipe 26 away from the liquid cooling plate 22 are connected to the outlet and inlet of the condenser 25 on one side of the base plate 21, respectively, forming a liquid cooling circulation loop. The grid plate 23 is fixed to the inner wall of the base plate 21 and located above the liquid cooling plate 22. The upper surface of the liquid cooling plate 22 is in close contact with the lower surface of the grid plate 23. The grid of the grid plate 23 is used to lock and fix the bottom of the battery pack.

[0034] like Figure 4As shown, the fixing component 3 includes a fireproof cover 31 and a locking plate 32. The second through holes 311 at the four corners of the lower surface of the fireproof cover 31 are clearance-fitted with the connecting rod 11. Several ventilation holes 4 are provided on both sides of the fireproof cover 31. The locking plate 32 is fixed to the lower surface of the fireproof cover 31. Its lower surface has evenly spaced locking grooves 321, and its upper surface has square holes 322 communicating with the locking grooves 321. The opening size of the square holes 322 is smaller than the opening size at the lower end of the locking grooves 321, ensuring stable locking without affecting heat dissipation. A threaded ring 33 is provided at the upper opening of the second through holes 311 on the upper surface of the fireproof cover 31. The threaded section of the upper end of the connecting rod 11 passes through the second through hole 311 and is threadedly connected to the inner wall of the threaded ring 33, thus fixing the fireproof cover 31.

[0035] In addition, all the above parts are coated with a waterproof coating made of polyurethane waterproof material, which has good water resistance, corrosion resistance and adhesion, and can effectively prevent water penetration and protect the parts from the effects of humid environment.

[0036] Working principle:

[0037] During operation, the energy storage batteries are placed one by one into the grid of the grid plate 23, so that the bottom of the battery engages with the grid plate 23 and is in contact with the upper surface of the liquid cooling plate 22. The second through hole 311 of the fireproof cover 31 is inserted into the connecting rod 11, so that the engaging groove 321 of the engaging plate 32 engages with the top of the battery. The threaded ring 33 is tightened to fix the fireproof cover 31. The condenser 25 is started, and the low-temperature coolant enters the liquid cooling plate 22 through the inlet pipe 27. After absorbing the heat from the bottom of the battery, it flows back to the condenser 25 through the outlet pipe 26 for cooling, forming a circulation. At the same time, the airflow enters through the ventilation hole 4 on one side of the base plate 21 and the fireproof cover 31, passes over the surface of the battery pack, and flows out through the ventilation hole 4 on the other side of the base plate 21 and the fireproof cover 31, realizing air-cooled auxiliary heat dissipation.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs, characterized in that, include: The mounting plate has connecting rods vertically fixed at the four corners of its upper surface. A heat dissipation assembly is located at the lower end of the connecting rod, on the upper surface of the mounting plate, and is used for heat dissipation at the bottom of the battery pack; the heat dissipation assembly includes a base plate, a liquid cooling plate, and a mesh plate. A fixing component is provided at the upper end of the connecting rod, located above the heat dissipation component, and is used to fix the battery pack; the fixing component includes a fireproof cover and a locking plate.

2. The high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to claim 1, characterized in that: The base plate has a first through hole at each of the four corners of its upper surface. The first through hole corresponds to the connecting rod. The base plate passes through the connecting rod and is in close contact with the upper surface of the mounting plate. Several ventilation holes are provided on both sides of the base plate. The base plate is equipped with a plurality of liquid cooling plates inside, and adjacent liquid cooling plates are connected by a connecting pipe. One end of the liquid cooling plate on one side is connected to a liquid inlet pipe, and one end of the liquid cooling plate on the other side is connected to a liquid outlet pipe. A condenser is provided on one side of the base plate. One end of the liquid inlet pipe passes through an opening in the side wall of the base plate and is connected to the liquid outlet of the condenser. The other end of the liquid outlet pipe passes through an opening in the side wall of the base plate and is connected to the liquid inlet of the condenser. The grid plate is located above the liquid cooling plate and is fixedly connected to the inner wall of the base plate. The grid plate is used to fix the bottom of the battery pack.

3. The high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to claim 2, characterized in that: The fireproof cover has a second through hole at each of the four corners of its lower surface, and the second through hole corresponds to the connecting rod. Several ventilation holes are provided on both sides of the fireproof cover. The locking plate is fixedly connected to the lower surface of the fireproof cover. The lower surface of the locking plate is evenly provided with a plurality of locking grooves. The upper surface of the locking plate is evenly provided with square holes corresponding to the locking grooves. The square holes are connected to the interior of the locking grooves.

4. The high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to claim 3, characterized in that: A threaded ring is provided at the upper opening of the second through hole on the upper surface of the fireproof cover, and the threaded section of the upper end of the connecting rod passes through the second through hole and is threadedly connected to the inner wall of the threaded ring.

5. The high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to claim 4, characterized in that: The opening size of the square hole is smaller than the opening size at the lower end of the engaging groove.

6. The high-efficiency liquid cooling heat dissipation integrated device for energy storage battery packs according to claim 5, characterized in that: The liquid cooling plate has an S-shaped structure and is evenly distributed inside the base plate. The upper surface of the liquid cooling plate is in close contact with the lower surface of the grid plate.

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