Liquid cooling plate for energy storage

Abstract

The utility model provides a liquid cooling plate for energy storage, which comprises a cooling liquid inlet water nozzle and a cooling liquid outlet water nozzle, the cooling liquid inlet water nozzle is isolated from a water outlet of the cooling liquid outlet water nozzle through an isolation copper block, a copper flow channel is arranged on a copper plate, the copper flow channel is provided with the cooling liquid outlet water nozzle, 9 flow channels are respectively arranged on the left side and the right side, and a copper cylinder tip is arranged in each flow channel. Convex particle structures which are uniformly distributed at equal intervals are arranged on the two surfaces of the silica gel sheet, and the convex particle structures are used for increasing friction force with the two contact surfaces of the silica gel sheet and facilitating bonding; the silica gel sheet plays a role in heat insulation to prevent the liquid cooling plate lower aluminum plate from generating condensation, and the liquid cooling plate lower aluminum plate is in contact with the outdoor environment; the outdoor environment temperature of the lower aluminum plate of the liquid cooling plate is isolated from entering the copper flow channel, so that the heat exchange effect is interfered by temperature difference; the liquid cooling device can effectively reduce the temperature of the energy storage battery pack through the internal improved structure, and the heat exchange effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, and more specifically, to a liquid cooling plate for energy storage. Background Art

[0002] During the use of existing energy storage battery packs or battery modules, heat is generated. The air-cooling method can no longer meet the heat management requirements, and liquid cooling has gradually become the mainstream because it has a higher heat transfer coefficient and a more uniform temperature distribution than air cooling. Generally, the existing liquid cooling device for energy storage battery packs uses a liquid cooling plate formed by friction stir welding of aluminum extrusions.

[0003] A multi-channel liquid cooling heat dissipation plate proposed in Chinese Patent No. CN117355079A includes a base plate and a cover plate. The cover plate is provided with a water inlet and a water outlet. The surface of the base plate is provided with a plurality of fins and turbulators. The cover plate is disposed on the base plate to form a closed water passage space. The turbulators are disposed between the fins. The gaps between the turbulators and the fins form a plurality of through micro-channels. According to the water flow direction, the upstream end of the water flow is the head micro-channel, and the downstream end is the tail micro-channel. The water inlet is located directly above the head micro-channel, and the water outlet is located directly above the tail micro-channel.

[0004] However, there are still some deficiencies in the existing liquid cooling plates during use and need to be improved. First, the existing common method is to use a liquid cooling plate formed by friction stir welding of aluminum extrusions, which has poor heat transfer effect. Second, a large amount of obvious condensation will occur during the use of the existing liquid cooling plates. Therefore, we make improvements and propose a liquid cooling plate for energy storage. Summary of the Utility Model

[0005] The purpose of the present utility model is to address the problems raised in the existing background art. To achieve the above-mentioned utility model purpose, the present utility model provides the following technical solutions: A liquid cooling plate for energy storage includes a coolant inlet nozzle and a coolant outlet nozzle. The coolant inlet nozzle and the coolant outlet nozzle are isolated by an isolation copper block. The positions on both sides of the end plugs of the inlet and outlet nozzles are closed, and the tail of the tail plug is through. The copper flow channels are on a copper plate. The copper flow channels are provided with the coolant outlet nozzle, and there are 9 flow channels on each side. Each flow channel is provided with a copper column tip; each copper column tip contains 4 equally spaced tips cut from the lower aluminum plate of the liquid cooling plate.

[0006] As a preferred technical solution of the present utility model, there are 9 heat insulation linings in the left and right flow channels of the lower aluminum plate of the liquid cooling plate. Each flow channel is separated by copper fins to form a flow channel. 180 copper column tips with a diameter of 1 mm and a height of 3 mm are evenly distributed at equal intervals in each flow channel.

[0007] As a preferred technical solution of the present utility model, the carrier of the copper flow channel 7 is a copper plate, and the fins or the tips of the copper columns of all the copper plates, as well as the water nozzle end plug and the tail plug, are sealed by copper-aluminum composite welding.

[0008] As a preferred technical solution of the present utility model, a silica gel sheet with a thermal conductivity of 0.13 W / (m·K) and a thickness of 1 mm is provided between the tail plug, the heat insulation lining and the lower aluminum plate of the liquid cooling plate.

[0009] As a preferred technical solution of the present utility model, the water nozzle end plug is an aluminum plug with an arc structure, and the tail plug is a U-shaped structure.

[0010] As a preferred technical solution of the present utility model, the water nozzle end plugs are separated at equal distances from left to right; the tail plugs communicate with each other from left to right.

[0011] As a preferred technical solution of the present utility model, both sides of the silica gel sheet are provided with uniformly distributed raised particle structures at equal distances. The raised particle structures are for increasing the friction force and facilitating adhesion with the two contact surfaces of the silica gel sheet; the overall silica gel sheet plays a role in heat insulation to prevent condensation on the lower aluminum plate of the liquid cooling plate. The lower aluminum plate of the liquid cooling plate is in contact with the outdoor environment; it also isolates the outdoor environmental temperature of the lower aluminum plate of the liquid cooling plate from entering the interior of the copper flow channel, causing temperature difference interference with the heat exchange effect.

[0012] As a preferred technical solution of the present utility model, the heat insulation lining is made of PP material. On one side of the heat insulation lining, there are 8 embedded slots symmetrically distributed on the left and right, and in the middle is an isolation copper block slot; sealing strips are provided on all the slots, and the copper fins are stuck in the slots to form 9 closed flow channels on the left and right respectively. The middle isolation copper block is inserted into the middle isolation copper block slot for left-right symmetry division. Note the plug. The other side of the heat insulation lining is a flat structure, and a silica gel sheet is placed on the flat structure.

[0013] As a preferred technical solution of the present utility model, the whole liquid cooling plate is a rectangular rectangle.

[0014] As a preferred technical solution of the present utility model, the tips of the copper columns are made of copper material.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the solution of the present utility model, a silicone sheet with a thermal conductivity of 0.13 W / (m·K) and a thickness of 1 mm is provided between the tail plug, the heat insulation lining and the lower aluminum plate of the liquid cooling plate. The two sides of the silicone sheet are provided with uniformly distributed raised particle structures at equal distances. The raised particle structures are for increasing the friction force and facilitating adhesion on the two contact surfaces of the silicone sheet; the overall silicone sheet plays a role in heat insulation to prevent condensation on the lower aluminum plate of the liquid cooling plate, and the lower aluminum plate of the liquid cooling plate is in contact with the outdoor environment; it also isolates the outdoor environmental temperature of the lower aluminum plate of the liquid cooling plate from entering the copper flow channel, causing temperature difference interference with the heat exchange effect; through the internally improved structure, the liquid cooling device can effectively reduce the temperature of the energy storage battery pack and has a better heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram provided by the present utility model;

[0017] Figure 2 is a schematic structural diagram of the copper column tip provided by the present utility model;

[0018] Figure 3 is a schematic front view structural diagram provided by the present utility model;

[0019] Figure 4 is a schematic left view structural diagram provided by the present utility model;

[0020] Figure 5 is a schematic front view structural diagram provided by the present utility model;

[0021] Figure 6 is a schematic partial enlarged structural diagram provided by the present utility model.

[0022] Labels in the figure:

[0023] 1. Coolant inlet nozzle; 2. Coolant outlet nozzle; 3. Upper aluminum plate of the liquid cooling plate; 4. Lower aluminum plate of the liquid cooling plate; 5. Plug at the nozzle end; 6. Tail plug; 7. Copper flow channel; 8. Copper column tip; 9. Heat insulation lining. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0025] Accordingly, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model. It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Embodiment 1: Please refer to Figures 1-6 , a liquid cooling plate for energy storage, including a coolant inlet nozzle 1 and a coolant outlet nozzle 2. The space between the outlets of the coolant inlet nozzle 1 and the coolant outlet nozzle 2 is isolated by an isolation copper block. The positions of the end plugs 5 at the inlet and outlet nozzle ends are closed on both sides, and the tail of the tail plug 6 is through. The copper flow channels 7 are on a copper plate. The copper flow channels 7 are provided with the coolant outlet nozzle 2, and 9 flow channels are arranged on each side. Each flow channel is provided with a copper column tip 8; each copper column tip 8 contains 4 equally spaced cut tips.

[0027] There are 99 heat insulation linings in the left and right flow channels of the lower aluminum plate 4 of the liquid cooling plate. Each flow channel is separately isolated by copper fins to form a flow channel. 180 copper column tips 8 are evenly distributed at equal intervals in each flow channel, with a diameter of 1 mm and a copper column height of 3 mm. The carrier of the copper flow channel 77 is a copper plate. All the fins or copper column tips 8 of the copper plates, as well as the end plugs 5 at the nozzle ends and the tail plug 6, are sealed by copper-aluminum composite welding.

[0028] A silicone sheet with a thermal conductivity of 0.13 W / (m·K) and a thickness of 1 mm is provided between the tail plug 6, the heat insulation lining 9 and the lower aluminum plate 4 of the liquid cooling plate. The end plug 5 at the nozzle end is an aluminum plug with an arc structure, and the tail plug 6 is a U-shaped structure. The end plugs 5 at the nozzle ends are isolated at equal intervals on the left and right; the tail plug 6 is interconnected on the left and right.

[0029] Both sides of the silicone sheet are provided with evenly distributed raised particle structures. The raised particle structures are used to increase the friction and facilitate adhesion with the two contact surfaces of the silicone sheet; the overall silicone sheet plays a role in heat insulation to prevent condensation on the lower aluminum plate 4 of the liquid cooling plate. The lower aluminum plate 4 of the liquid cooling plate is in contact with the outdoor environment; it also isolates the outdoor environment temperature of the lower aluminum plate 4 of the liquid cooling plate from entering the inside of the copper flow channel 7, causing temperature difference interference with the heat exchange effect.

[0030] The heat-insulating inner lining 9 is made of PP material. On one side of the heat-insulating inner lining 9, there are 8 embedded slots symmetrically distributed on the left and right, and an isolation copper block slot in the middle; sealing strips are arranged on all the slots, and the copper fins are stuck in the slots to form 9 flow channels on the left and right respectively, which are closed. The middle isolation copper block is inserted into the middle isolation copper block slot for left-right symmetry division. Pay attention to the plug. The other side of the heat-insulating inner lining 9 is a flat structure, and a silica gel sheet is placed on the flat structure. The whole liquid cooling plate is a rectangular rectangle. The copper column tip 8 is made of copper material.

[0031] The water nozzle end plug 5 of the coolant inlet nozzle 1 enters. The water nozzle end plug 5 is an aluminum plug with an arc structure. After the coolant enters, it is injected inside the arc structure. The arc shape is beneficial to the uniform distribution of the coolant flow rate at the inlet or outlet; the water nozzle end plug 5 is separated in the middle of the inlet and outlet, forcing the coolant to flow along the arc-shaped flow channel. The tail plug 6 is a U-shaped structure, and the U-shaped structure can extend the coverage range of the liquid cooling plate within a limited internal range, facilitating the flow.

[0032] The coolant inlet nozzle 1 and the coolant outlet nozzle 2 are isolated by an isolation copper block. The positions of the water nozzle end plugs 5 on both sides of the inlet and outlet are closed, and the tail of the tail plug 6 is through. The copper flow channel 7 is on a copper plate. The copper flow channel 7 is provided with a coolant outlet nozzle 2 and 9 flow channels on the left and right respectively with heat-insulating inner linings. Each flow channel is provided with a copper column tip, and each copper column tip contains 4 equally spaced cut tips of the aluminum plate under the liquid cooling plate; the function of the copper column tip, made of copper, has good thermal conductivity, increases the contact surface of the coolant, is convenient for better heat exchange, and improves the heat exchange efficiency.

[0033] There are 9 heat-insulating inner linings in each of the left and right flow channels of the aluminum plate 4 under the liquid cooling plate. Each flow channel is separately isolated by copper fins to form a flow channel. The water nozzle end plugs 5 are equally spaced left and right; the tail plug 6 is interconnected left and right to facilitate the internal flow circulation of the liquid. 80 copper column tips serving as flow disturbance columns of the coolant inlet nozzle 1 are evenly distributed at equal intervals in each flow channel, with a diameter of 1 millimeter for the coolant inlet nozzle 1, a height of 3 millimeters for the copper column on the upper aluminum plate of the liquid cooling plate, and the height of the copper column tip is half of the height of the flow channel. The carrier of the copper flow channel 7 is a copper plate. All the copper fins or copper column tips, as well as the aluminum plugs, are welded and sealed by copper-aluminum composite. The whole device is a rectangular rectangle.

[0034] The copper flow channel 7 is a prior art and the internal structure of the fin is not shown again, and too much is said about the fin; the water nozzle end plug 5 and the heat insulation lining 9 are made of PP material with a thermal conductivity of 0.13 W / (m·K). There are 8 embedded card slots for spoiler columns symmetrically distributed on the left and right on the PP material, and in the middle is the card slot for the isolation copper block; sealing strips are arranged on all the card slots, and the copper fins are stuck in the card slots, thus forming 9 flow channels for the heat insulation linings on the left and right respectively, which are closed. The middle isolation copper block is inserted into the middle isolation copper block card slot for left-right symmetry division. The plug, the water nozzle end plug 5 seals the coolant outlet water nozzle 2 and is isolated on both sides. The lower part of the plug on the side of the heat insulation lining 9 is left empty and not sealed, which is convenient for the liquid to flow according to the flow channel. The other side of the PP material is a flat structure. A silica gel sheet is placed on the flat structure.

[0035] Another layer of silica gel sheet with a thermal conductivity of 0.13 W / (m·K) and a thickness of 1 mm is placed between the tail plug 6, the heat insulation lining 9 and the lower aluminum plate 4 of the liquid cooling plate; on the surface of the silica gel sheet facing the coolant outlet water nozzle 2, uniformly distributed convex particle structures are arranged at equal distances. The convex structure is to increase the friction force and facilitate adhesion with the two contact surfaces of the coolant outlet water nozzle 2. The overall silica gel sheet plays a role in heat insulation to prevent condensation on the lower aluminum plate 4 of the liquid cooling plate. The lower aluminum plate 4 of the liquid cooling plate is in contact with the outdoor environment. It also isolates the outdoor environmental temperature of the lower aluminum plate 4 of the liquid cooling plate from entering the inside of the copper flow channel 7, causing temperature difference interference with the heat exchange effect.

[0036] During the use of the present utility model, a battery pack is placed on the upper aluminum plate 3 of the liquid cooling plate; the coolant enters through the coolant inlet water nozzle 1. The coolant inlet water nozzle 1 at the inlet and the coolant outlet water nozzle 2 at the outlet are isolated by an isolation copper block. The positions of the inlet and the outlet are closed on both sides, and the tail of the tail plug 6 is through. The copper flow channel 7 is on a copper plate. The copper flow channel 7 is provided with a coolant outlet water nozzle 2, and there are 9 flow channels for the heat insulation linings on the left and right respectively. Each flow channel is provided with a copper column tip; each copper column tip contains 4 equally spaced cut tips; the function of the copper column tip, made of copper with good thermal conductivity, increases the contact surface of the coolant, is convenient for better flow and heat exchange, and transfers the heat dissipated and conducted by the battery pack on the upper aluminum plate 3 of the liquid cooling plate. The heat insulation lining 9 is a silica gel sheet with a thermal conductivity of 0.13 W / (m·K), which has a heat insulation function; it cuts off the temperature exchange between the lower aluminum plate 4 of the liquid cooling plate and the copper flow channel 7.

[0037] The above embodiments are only used to illustrate the present utility model and do not limit the technical solutions described in the present utility model. Although this specification has described the present utility model in detail with reference to the above respective embodiments, the present utility model is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement to the present utility model; and all technical solutions and their improvements that do not depart from the spirit and scope of the utility model are covered by the scope of the claims of the present utility model.

Claims

1. A liquid cooling plate for energy storage, comprising a cooling liquid inlet nozzle (1), a cooling liquid outlet nozzle (2), an aluminum plate (3) on the cooling plate, and an aluminum plate (4) on the cooling plate, wherein the cooling liquid inlet nozzle (1) and the cooling liquid outlet nozzle (2) are separated from each other by an isolating copper block, characterized in that: The nozzle end plugs (5) of the coolant inlet nozzle (1) and the coolant outlet nozzle (2) are closed on both sides, and the tail plug (6) is connected at the tail end. The copper flow channel (7) is on a copper plate, and the coolant outlet nozzle (2) is provided with the copper flow channel (7). The left and right thermal insulation liners (9) are provided with 9 flow channels, and each flow channel is provided with a copper column tip (8); each of the copper column tips (8) contains 4 tips cut at equal distances.

2. The liquid cooling plate for energy storage according to claim 1, characterized in that: The aluminum plate (4) below the liquid cooling plate has 9 left and right flow channels, each of which is separated by copper fins to form a flow channel. Each flow channel has 180 copper column tips (8) evenly distributed at equal intervals. The copper column tips (8) have a diameter of 1 mm and a height of 3 mm.

3. The liquid cooling plate for energy storage according to claim 1, characterized in that: The carrier of the copper flow channel (7) is a copper plate, and all the fins or copper column tips (8) of the copper plate, as well as the nozzle end plug (5) and the tail plug (6) are sealed by copper-aluminum composite welding.

4. The liquid cooling plate for energy storage according to claim 1, characterized in that: A layer of silicone sheet with a thermal conductivity of 0.13 W / (m·K) and a thickness of 1 mm is provided between the tail plug (6), the heat insulating lining (9) and the lower aluminum plate (4) of the liquid cooling plate.

5. The liquid cooling plate for energy storage according to claim 4, characterized in that: The thermal insulation lining (9) is made of PP material. On one side of the thermal insulation lining (9), 8 embedded slots are distributed symmetrically on the left and right, and the middle is an isolation copper block slot. The slots are all provided with sealing strips. The copper fins are stuck in the slots to form 9 closed flow channels on the left and right. The middle isolation copper block is stuck in the middle isolation copper block slot to divide the flow channels symmetrically on the left and right. Pay attention to the plug. The other side of the thermal insulation lining (9) is a plane structure, and the silicone sheet is placed on the plane structure.

6. The liquid cooling plate for energy storage according to claim 1, characterized in that: The faucet end plug (5) is equidistantly separated from the left and right sides; and the tail plug (6) is interconnected from the left and right sides.

7. The liquid cooling plate for energy storage according to claim 5, characterized in that: Both sides of the silicone sheet are provided with equidistant and evenly distributed raised particle structures.

8. The liquid cooling plate for energy storage according to claim 1, characterized in that: The faucet end plug (5) is an aluminum plug with an arc structure, and the tail plug (6) is a U-shaped structure.

9. The liquid cooling plate for energy storage according to claim 1, characterized in that: The entire liquid cooling plate is a rectangular shape.

10. The liquid cooling plate for energy storage according to claim 1, characterized in that: The copper column tip (8) is made of copper.

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