Novel battery water cooling plate

Abstract

The utility model belongs to the technical field of water-cooling plates, and particularly relates to a novel battery water-cooling plate which comprises a water-cooling plate main body, a cooling medium flow channel and a plurality of buffer regions communicated with the cooling medium flow channel are arranged in the water-cooling plate main body, the inner diameter of each buffer region is larger than that of the cooling medium flow channel, and the inner diameter of each buffer region is larger than that of the cooling medium flow channel. A liquid inlet and a liquid outlet which are communicated with the cooling medium runner are respectively fixed at two ends of the water cooling plate main body; according to the utility model, through the design of the cache region, cooling medium distribution is optimized aiming at a battery core heating region, such as a positive and negative plate interface and an electrolyte region, so that insufficient heat dissipation or resource waste is avoided; the heat dissipation fins are matched with the fan to form double heat dissipation of liquid cooling and air cooling, heat conduction and convection are strengthened, and the heat dissipation effect is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of water-cooled plate technology, specifically relating to a novel battery water-cooled plate. Background Technology

[0002] Water-cooled plates are a heat dissipation technology that uses water or other liquid circulation to remove heat generated by equipment in order to maintain the normal operating temperature of the equipment. Water-cooled plates effectively remove heat from the equipment by introducing fluid circulation, and optimize the heat transfer process through the design of cooling medium channels. This design helps to improve the heat dissipation efficiency of electronic devices and ensure that they can maintain an appropriate temperature during operation.

[0003] Battery water-cooled plates are core components in the thermal management system of new energy batteries. They achieve efficient heat dissipation through liquid cooling technology, ensuring that the battery maintains a safe temperature range during charging and discharging.

[0004] For example, in the prior art, Chinese utility model patent with authorization announcement number CN222422055U discloses "a stamped battery water cooling plate", which includes a lower plate and an upper plate. The lower plate and the upper plate are the same size and are attached and fixed to each other. The upper plate includes a stamped cooling medium channel, a water inlet and a water outlet. The cooling medium channel is an irregular ring structure with the ends not connected. The water inlet and the water outlet are respectively provided at both ends of the cooling medium channel.

[0005] While existing battery water-cooling plates, including those mentioned above, can meet general cooling requirements, different parts of the battery generate different amounts of heat. During normal operation, the core heat-generating areas are concentrated at the interface between the positive and negative plates and the electrolyte (electrochemical reaction and polarization heating) and in the electrolyte and internal resistance loss area (ohmic heating). Therefore, existing improvement solutions cannot provide targeted heat dissipation for different heat-generating areas, resulting in uneven heat dissipation and potential problems such as insufficient heat dissipation or resource waste.

[0006] To address the aforementioned problems, this utility model proposes a novel battery water-cooling plate. Utility Model Content

[0007] To address the aforementioned problems in the existing technology, this utility model provides a novel battery water-cooling plate, which is convenient to use and provides uniform heat dissipation.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a novel battery water-cooled plate, comprising a water-cooled plate body, wherein a cooling medium flow channel and a plurality of buffer zones communicating with the cooling medium flow channel are provided in the water-cooled plate body, the inner diameter of the buffer zone being larger than that of the cooling medium flow channel, and an inlet and an outlet communicating with the cooling medium flow channel are respectively fixed at both ends of the water-cooled plate body.

[0009] As a preferred embodiment of this utility model, the cooling medium channel is an "S"-shaped channel, and both the cooling medium channel and the buffer area have circular cross-sections.

[0010] As a preferred embodiment of this utility model, it further includes:

[0011] Two sets of support members are symmetrically distributed, and the main body of the water-cooled plate is fixed between the two sets of support members to fix the main body of the water-cooled plate inside the battery casing.

[0012] As a preferred embodiment of this utility model, the support member includes:

[0013] A U-shaped support plate, with mounting holes provided on the U-shaped support plate;

[0014] Two fixing plates are symmetrically fixed inside the U-shaped support plate, and through holes are provided on the fixing plates.

[0015] As a preferred embodiment of this utility model, it further includes:

[0016] The inlet pipe is fixed between the two fixing plates and communicates with the inlet port, and an inlet connector is fixed at one end of the inlet pipe.

[0017] The liquid outlet pipe is fixed between the two fixed plates and communicates with the liquid outlet, and a liquid outlet connector is fixed at one end of the liquid inlet pipe.

[0018] As a preferred embodiment of this utility model, it further includes:

[0019] A metal heat-conducting plate is fixed to the bottom surface of the water-cooled plate body, and heat dissipation fins are evenly distributed on the bottom surface of the metal heat-conducting plate.

[0020] As a preferred embodiment of this utility model, it further includes:

[0021] A cooling fan is fixed to the bottom surface of the metal heat-conducting plate, and the air outlet of the cooling fan faces the bottom surface of the metal heat-conducting plate.

[0022] As a preferred embodiment of this utility model, it further includes:

[0023] Four positioning threaded rods are fixed diagonally to the bottom surface of the water-cooled plate body and penetrate the metal heat-conducting plate.

[0024] A locking nut, which is installed on the protruding end of the positioning threaded rod by thread engagement;

[0025] A telescopic spring is sleeved on the positioning threaded rod and positioned between the metal heat-conducting plate and the locking nut.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] In this invention, a buffer zone design is used to optimize the distribution of cooling medium in the core heat-generating areas of the battery, such as the interface between the positive and negative plates and the electrolyte area, to avoid insufficient heat dissipation or waste of resources. The heat dissipation fins and the fan work together to form a dual heat dissipation system of "liquid cooling + air cooling", which enhances heat conduction and convection and significantly improves the heat dissipation effect.

[0028] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0032] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0033] Figure 4 This is an isometric structural diagram of the U-shaped support frame in this utility model.

[0034] In the diagram: 1. Water-cooled plate body; 11. Cooling medium flow channel; 12. Buffer area; 13. Liquid inlet; 14. Liquid outlet; 2. Support component; 21. U-shaped support plate; 211. Mounting hole; 22. Fixing plate; 221. Through hole; 3. Liquid inlet pipe; 31. Liquid inlet connector; 4. Liquid outlet pipe; 41. Liquid outlet connector; 5. Metal heat-conducting plate; 51. Heat dissipation fins; 6. Cooling fan; 7. Positioning threaded rod; 8. Locking nut; 9. Telescopic spring. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-4 This utility model provides the following technical solution: A novel battery water-cooled plate includes a water-cooled plate body 1, in which a cooling medium flow channel 11 and a plurality of buffer zones 12 communicating with the cooling medium flow channel 11 are provided. The inner diameter of the buffer zone 12 is larger than that of the cooling medium flow channel 11. An inlet 13 and an outlet 14 communicating with the cooling medium flow channel 11 are fixed at both ends of the water-cooled plate body 1, respectively. With the above solution, when in use, the cooling medium enters the cooling medium flow channel 11 in the water-cooled plate body 1 from the inlet 13. Since the inner diameter of the buffer zone 12 is larger than that of the cooling medium flow channel 11, when the cooling medium flows through the buffer zone 12 communicating with the cooling medium flow channel 11, its flow space suddenly expands and the flow rate will decrease accordingly, forming a local buffer area. This design allows the cooling medium to have a longer residence time in the buffer zone 12, and can have a more thorough heat exchange with the inner wall of the water-cooled plate body 1, thereby more effectively absorbing the heat generated by the battery.

[0037] The arrangement of multiple buffer zones 12 on the cooling medium flow channel 11 forms multiple heat dissipation nodes, enabling the cooling medium to be evenly distributed to various areas of the water-cooled plate body 1, thus avoiding the local overheating problem that may occur in a single flow channel.

[0038] During installation, the core heat-generating area of ​​the battery should be positioned close to the buffer area 12 to facilitate the rapid dissipation of heat generated by the core heat-generating area of ​​the battery.

[0039] After the cooling medium absorbs heat, it flows out of the water-cooled plate body 1 through the outlet 14 and enters the external cooling circulation system. After heat dissipation treatment, it flows back in through the inlet 13, forming a continuous cooling cycle.

[0040] Preferably, by Figure 1 As shown in this embodiment, the cooling medium flow channel 11 is an "S"-shaped channel, and the cross-sections of the cooling medium flow channel 11 and the buffer area 12 are both circular. After adopting the above scheme, when in use, the "S"-shaped cooling medium flow channel 11 greatly extends the flow path of the cooling medium in the water-cooled plate body 1. Compared with the straight flow channel, the contact area between the cooling medium and the water-cooled plate body 1 is significantly increased, which can more fully absorb the heat generated by the battery and significantly improve the heat exchange efficiency.

[0041] The circular cross-section design ensures that the cooling medium is subjected to uniform force in all directions when it flows in the cooling medium channel 11 and the buffer zone 12, avoiding problems such as excessive local resistance or uneven fluid distribution caused by irregular cross-section.

[0042] When the cooling medium flows through the bend of the "S"-shaped cooling medium channel 11, the circular cross-section helps to form a stable vortex, enhances the turbulence of the fluid, breaks the boundary layer, and further enhances the heat exchange effect.

[0043] In addition, multiple circular cross-section buffer zones 12 are connected to the “S”-shaped cooling medium flow channel 11, which can better store and regulate the cooling medium while reducing the cooling medium flow rate, ensuring the stability of the entire water cooling system flow.

[0044] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, it further includes: two sets of support members 2, which are symmetrically distributed. The water-cooled plate body 1 is fixed between the two sets of support members 2 to fix the water-cooled plate body 1 inside the battery casing. With the above solution, during use, the symmetrical layout of the support members 2 makes the water-cooled plate body 1 uniformly stressed, avoiding deformation or poor contact caused by stress concentration on one side, thereby ensuring the stability of the water-cooled plate body 1.

[0045] In addition, the support member 2 can also serve as an auxiliary heat conduction path. Therefore, the support member 2 can be made of a material with good thermal conductivity, such as aluminum alloy. The heat absorbed by the water-cooled plate body 1 can be conducted to the battery casing through the support member 2, thereby accelerating the heat dissipation efficiency.

[0046] Optionally, by Figure 1 , Figure 2 and Figure 4 As shown in this embodiment, the support member 2 includes a U-shaped support plate 21 and two fixing plates 22. The U-shaped support plate 21 has mounting holes 211, and the two fixing plates 22 are symmetrically fixed inside the U-shaped support plate 21. The fixing plates 22 have through holes 221. With the above solution, when in use, the U-shaped support plate 21 is fixed to the battery casing with bolts, and the two vertical parts of the U-shaped support plate 21 are fixedly connected to the water-cooled plate body 1 with bolts to avoid deformation or poor contact caused by stress concentration on one side, thereby ensuring the stability of the water-cooled plate body 1.

[0047] Optionally, by Figure 1 , Figure 2 and Figure 4As shown, in this embodiment, it further includes: an inlet pipe 3 and an outlet pipe 4. The inlet pipe 3 is fixed between two fixing plates 22 and communicates with the inlet port 13. An inlet connector 31 is fixed at one end of the inlet pipe 3. The outlet pipe 4 is fixed between two fixing plates 22 and communicates with the outlet port 14. An outlet connector 41 is fixed at one end of the inlet pipe 3. With the above solution, in use, the inlet pipe 3 and the outlet pipe 4 are respectively fixed between two fixing plates 22 with bolts. The cooling medium enters the inlet pipe 3 from the inlet connector 31 and then enters the cooling medium flow channel 11 from the inlet port 13.

[0048] After passing through the cooling medium flow channel 11, the cooling medium enters the outlet pipe 4 from the outlet 14 and is finally discharged from the outlet connector 41.

[0049] Preferably, by Figure 1 and Figure 2 As shown, in this embodiment, it further includes: a metal heat-conducting plate 5, which is fixed to the bottom surface of the water-cooled plate body 1, and heat dissipation fins 51 are evenly distributed on the bottom surface of the metal heat-conducting plate 5. With the above solution, when in use, the metal heat-conducting plate 5 is an aluminum plate, which is attached to the bottom surface of the water-cooled plate body 1. Together with the heat dissipation fins 51 on the bottom surface, it has a large heat dissipation area. The heat absorbed by the water-cooled plate body 1 can be conducted to the metal heat-conducting plate 5 and the heat dissipation fins 51, thereby accelerating the heat dissipation efficiency.

[0050] Preferably, by Figure 1 and Figure 2 As shown, this embodiment further includes a cooling fan 6, which is fixed to the bottom surface of the metal heat-conducting plate 5, and the air outlet of the cooling fan 6 faces the bottom surface of the metal heat-conducting plate 5. With the above solution, when in use, the cooling fan 6 is connected to the power supply and started, and the cooling fan 6 blows cooling air toward the metal heat-conducting plate 5 to form a "liquid cooling + air cooling" dual heat dissipation, which enhances heat conduction and convection and significantly improves the heat dissipation effect.

[0051] Preferably, by Figures 1-3 As shown, this embodiment further includes: four positioning threaded rods 7, a locking nut 8, and a telescopic spring 9. The four positioning threaded rods 7 are diagonally fixed to the bottom surface of the water-cooled plate body 1 and pass through the metal heat-conducting plate 5. The locking nut 8 is installed on the protruding end of the positioning threaded rod 7 by thread engagement. The telescopic spring 9 is sleeved on the positioning threaded rod 7 and is located between the metal heat-conducting plate 5 and the locking nut 8. With the above scheme, when in use, the four diagonally distributed positioning threaded rods 7 pass through the metal heat-conducting plate 5 to form a stable spatial positioning frame. Its diagonal layout effectively disperses the force on the water-cooled plate body 1 during installation and operation. Through the through engagement with the metal heat-conducting plate 5, the metal heat-conducting plate 5 is precisely limited to the target position on the bottom surface of the water-cooled plate body 1, preventing it from shifting in the horizontal direction.

[0052] The locking nut 8 is screwed onto the protruding end of the positioning threaded rod 7. Its tightness can be manually adjusted during installation. The telescopic spring 9 is sleeved on the positioning threaded rod 7 and is located between the metal heat-conducting plate 5 and the locking nut 8. When the battery undergoes dimensional changes due to thermal expansion and contraction during charging and discharging, or when it is displaced under vibration environments such as vehicle driving, the telescopic spring 9 can dynamically adjust the pressure between the water-cooled plate body 1 and the metal heat-conducting plate 5 through elastic deformation.

[0053] Meanwhile, the preload of the telescopic spring 9 can be adjusted by adjusting the position of the locking nut 8 to adapt to the usage requirements in different environments.

[0054] Components not described in detail in this article are existing technologies.

[0055] The working principle and usage process of this utility model: When the water-cooled plate body 1 of this utility model is in use, the cooling medium enters the cooling medium flow channel 11 inside the water-cooled plate body 1 through the liquid inlet 13. Since the inner diameter of the buffer area 12 is larger than the inner diameter of the cooling medium flow channel 11, when the cooling medium flows through the buffer area 12 which is connected to the cooling medium flow channel 11, its flow space suddenly expands and the flow rate will decrease accordingly, forming a local buffer area. This design allows the cooling medium to have a more sufficient residence time in the buffer area 12, and can have a more sufficient heat exchange with the inner wall of the water-cooled plate body 1, thereby more effectively absorbing the heat generated by the battery.

[0056] The arrangement of multiple buffer zones 12 on the cooling medium flow channel 11 forms multiple heat dissipation nodes, enabling the cooling medium to be evenly distributed to various areas of the water-cooled plate body 1, thus avoiding the local overheating problem that may occur in a single flow channel.

[0057] During installation, the core heat-generating area of ​​the battery should be placed close to the buffer area 12 to facilitate the rapid dissipation of heat generated by the core heat-generating area of ​​the battery.

[0058] After the cooling medium absorbs heat, it flows out of the water-cooled plate body 1 through the outlet 14 and enters the external cooling circulation system. After heat dissipation treatment, it flows back in through the inlet 13 to form a continuous cooling cycle.

[0059] In another aspect of this invention, the metal heat-conducting plate 5 and the cooling fan 6 work together to form a dual heat dissipation system of "liquid cooling + air cooling", which enhances heat conduction and convection and significantly improves the heat dissipation effect.

[0060] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel battery water-cooled plate, comprising a water-cooled plate body (1), characterized in that: A cooling medium flow channel (11) and a plurality of buffer zones (12) communicating with the cooling medium flow channel (11) are provided in the main body (1) of the water-cooled plate. The inner diameter of the buffer zone (12) is larger than that of the cooling medium flow channel (11). An inlet (13) and an outlet (14) communicating with the cooling medium flow channel (11) are respectively fixed at both ends of the main body (1) of the water-cooled plate.

2. The novel battery water-cooling plate according to claim 1, characterized in that: The cooling medium channel (11) is an "S" shaped channel, and the cross-sections of the cooling medium channel (11) and the buffer area (12) are both circular.

3. The novel battery water-cooling plate according to claim 1, characterized in that: Further includes: Two sets of support members (2) are symmetrically distributed, and the water-cooled plate body (1) is fixed between the two sets of support members (2) to fix the water-cooled plate body (1) inside the battery casing.

4. A novel battery water-cooling plate according to claim 3, characterized in that: The support member (2) includes: U-shaped tray (21), and mounting holes (211) are provided on the U-shaped tray (21); Two fixing plates (22) are symmetrically fixed inside the U-shaped support plate (21), and through holes (221) are provided on the fixing plates (22).

5. A novel battery water-cooling plate according to claim 4, characterized in that: Further includes: The liquid inlet pipe (3) is fixed between the two fixing plates (22) and communicates with the liquid inlet (13), and a liquid inlet connector (31) is fixed at one end of the liquid inlet pipe (3). The liquid outlet pipe (4) is fixed between the two fixing plates (22) and communicates with the liquid outlet (14), and a liquid outlet connector (41) is fixed at one end of the liquid inlet pipe (3).

6. A novel battery water-cooling plate according to claim 1, characterized in that: Further includes: Metal heat-conducting plate (5) is fixed to the bottom surface of the water-cooled plate body (1), and heat dissipation fins (51) are evenly distributed on the bottom surface of the metal heat-conducting plate (5).

7. A novel battery water-cooling plate according to claim 6, characterized in that: Further includes: Cooling fan (6) is fixed to the bottom surface of the metal heat-conducting plate (5), and the air outlet of the cooling fan (6) faces the bottom surface of the metal heat-conducting plate (5).

8. A novel battery water-cooling plate according to claim 6, characterized in that: Further includes: Four positioning threaded rods (7) are fixed diagonally to the bottom surface of the water-cooled plate body (1) and pass through the metal heat-conducting plate (5). Locking nut (8), which is installed on the protruding end of the positioning threaded rod (7) by means of thread engagement; A telescopic spring (9) is sleeved on the positioning threaded rod (7) and located between the metal heat-conducting plate (5) and the locking nut (8).

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