Liquid cooling plate

Abstract

The utility model discloses a liquid cooling plate, which comprises a strip-shaped liquid cooling plate main body and a plurality of graphene coatings, the plurality of graphene coatings are sprayed on the liquid cooling plate main body at intervals along the length direction of the liquid cooling plate main body, and the distance between two adjacent graphene coatings is equal to the distance between two adjacent batteries. The sizes of the plurality of graphene coatings are matched with the sizes of the plurality of batteries one by one, and the plurality of graphene coatings are attached to the plurality of batteries. By adopting the design mode, the heat generated by the battery can be efficiently conducted to the liquid cooling plate main body through the graphene coating, and then is dissipated by the liquid cooling plate main body, so that the battery pack has relatively good performance and service life. In addition, the graphene coatings are arranged at intervals, and the size of the graphene coatings is matched with the size of the battery, so that waste of ink-jet raw materials caused by spraying the graphene coatings on the area, which is not in contact with the battery, on the liquid cooling plate main body can be avoided. In conclusion, the liquid cooling plate provided by the utility model can be used for efficiently dissipating heat of the battery, reducing the production cost and saving resources.

Description

Technical Field

[0001] This utility model relates to the field of battery cooling technology, and in particular to a liquid cooling plate. Background Technology

[0002] Battery packs on the market are generally composed of multiple batteries spaced apart. They are widely used in consumer electronics, new energy vehicles, data centers and computer room base stations, as well as energy storage systems. During use, battery packs are prone to generating heat, which causes their own temperature to rise. However, excessively high battery pack temperatures can significantly affect battery performance and lifespan. Therefore, how to effectively reduce the temperature of battery packs has become an urgent problem to be solved. Utility Model Content

[0003] In order to overcome at least one of the defects described in the prior art, the present invention provides a liquid cooling plate to solve the problem of how to effectively reduce the temperature of the battery pack.

[0004] The present invention provides a liquid cooling plate for cooling a battery pack composed of multiple spaced-apart batteries. The plate includes a long strip-shaped liquid cooling plate body and multiple graphene coatings. The graphene coatings are sprayed onto the liquid cooling plate body at intervals along its length. The distance between two adjacent graphene coatings is equal to the distance between two adjacent batteries. The size of each graphene coating is adapted to the size of the batteries and adheres to them.

[0005] As an optional implementation, in this embodiment of the present invention, the liquid cooling plate body is provided with a plurality of grooves of a size adapted to a plurality of graphene coatings, and the plurality of graphene coatings are respectively sprayed into the plurality of grooves, and the outer surface of the graphene coatings is flush with the outer surface of the liquid cooling plate body.

[0006] As an optional implementation, in this embodiment of the invention, the thickness of each of the multiple graphene coatings is 0.1 mm.

[0007] As an optional implementation, in this embodiment of the present invention, the liquid cooling plate further includes an inlet / outlet end cap and a tail end cap. The inlet / outlet end cap is provided with an inlet and an outlet. The main body of the liquid cooling plate is provided with multiple inlet channels and outlet channels extending along its own length and penetrating both ends. The inlet / outlet end cap is located at one end of the main body of the liquid cooling plate. The inlet is connected to the inlet channel, and the outlet is connected to the outlet channel. The tail end cap is located at the other end of the main body of the liquid cooling plate. The inlet channel and the outlet channel at the other end of the main body of the liquid cooling plate are interconnected.

[0008] As an optional implementation, in this embodiment of the present invention, the side of the liquid inlet facing away from the liquid inlet channel is provided with a first chamfer α, and the side of the liquid inlet facing the liquid inlet channel is provided with a second chamfer β.

[0009] As an optional implementation, in this embodiment of the present invention, the size of the first chamfer α is α = 30°, and the size of the second chamfer β is β = 45°.

[0010] As an optional implementation, in this embodiment of the present invention, the side of the liquid outlet away from the liquid outlet channel is provided with a third chamfer γ, and the side of the liquid outlet facing the liquid outlet channel is provided with a fourth chamfer δ.

[0011] As an optional implementation, in this embodiment of the present invention, the size of the third chamfer γ is γ = 30°, and the size of the fourth chamfer δ is δ = 45°.

[0012] As an optional implementation, in this embodiment of the present invention, the inlet and outlet end caps are provided with a first insertion interface having a first bevel, one end of the liquid cooling plate body is inserted into the first insertion interface, and the first bevel is filled with glass fiber solder to weld the inlet and outlet end caps to the liquid cooling plate body.

[0013] As an optional implementation, in this embodiment of the present invention, the tail end cap is provided with a second insertion interface with a second bevel, the other end of the liquid cooling plate body is inserted into the second insertion interface, and the second bevel is filled with glass fiber solder to weld the tail end cap to the liquid cooling plate body.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] This invention utilizes a liquid cooling plate comprising a long, strip-shaped main body and multiple graphene-coated sections. The graphene coatings are sprayed at intervals along the length of the main body, with the spacing between adjacent graphene coatings equal to the spacing between adjacent batteries. The size of each graphene coating is individually adapted to and conforms to the size of the batteries. This design allows heat generated by the batteries to be efficiently conducted to the main body via the graphene coatings, and then dissipated by the main body, thus ensuring good battery performance and lifespan. Furthermore, because the graphene coatings are spaced apart and their size is adapted to the battery size, it avoids wasting inkjet printing materials by spraying graphene coatings onto areas of the main body that are not in contact with the batteries. In summary, this liquid cooling plate solution efficiently dissipates heat from the batteries while reducing production costs and conserving resources. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure in an embodiment of the present invention where the liquid cooling plate and the battery are separated;

[0018] Figure 2 A cross-sectional view of the liquid cooling plate in this embodiment of the present invention. Figure 1 ;

[0019] Figure 3 A cross-sectional view of the liquid cooling plate in this embodiment of the present invention. Figure 2 ;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0022] Figure 6 for Figure 3 Enlarged diagram of point C in the middle.

[0023] The meanings of the reference numerals in the attached figures are as follows:

[0024] 10-Liquid cooling plate; 1-Liquid cooling plate body; 11-Groove; 12-Liquid inlet channel; 13-Liquid outlet channel; 2-Graphene coating; 3-Inlet and outlet end caps; 31-Liquid inlet; 32-Liquid outlet; 33-First bevel; 4-Tail end cap; 41-Second bevel; 20-Battery. Detailed Implementation

[0025] 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.

[0026] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0028] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0029] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

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

[0031] Please refer to the following: Figures 1 to 6This utility model discloses a liquid cooling plate 10 for cooling a battery pack composed of multiple spaced-apart batteries. The liquid cooling plate 10 includes a long strip-shaped liquid cooling plate body 1 and multiple graphene coatings 2. The multiple graphene coatings 2 are sprayed at intervals along the length of the liquid cooling plate body 1. The spacing between two adjacent graphene coatings 2 is equal to the spacing between two adjacent batteries 20. The size of each graphene coating 2 is adapted to the size of the multiple batteries 20 and is attached to them. With this design, the heat generated by the batteries 20 can be efficiently conducted to the liquid cooling plate body 1 through the graphene coatings 2, and then dissipated by the liquid cooling plate body 1, thereby ensuring that the battery pack has good performance and lifespan. In addition, since the graphene coatings 2 are spaced-apart and their size is adapted to the size of the batteries 20, the waste of inkjet raw materials caused by spraying graphene coatings 2 on areas of the liquid cooling plate body 1 that are not in contact with the batteries 20 can be avoided. In summary, the liquid cooling plate 10 in this solution can efficiently dissipate heat from the battery 20 while also reducing production costs and saving resources.

[0032] This embodiment illustrates the application of liquid cooling plate 10 to a battery pack consisting of six spaced-apart batteries, and correspondingly, the graphene coating 2 also consists of six pieces. It is understood that in other embodiments, the battery 20 may consist of three, four, or five or more pieces, and this is not a limitation.

[0033] In some embodiments, the liquid cooling plate body 1 has multiple grooves 11 of varying sizes adapted to multiple graphene coatings 2. The multiple graphene coatings 2 are respectively sprayed into the multiple grooves 11, and the outer surface of the graphene coatings 2 is flush with the outer surface of the liquid cooling plate body 1. This design makes the liquid cooling plate 10 more integral and the structure more compact.

[0034] The thickness of each graphene coating 2 is 0.1 mm to meet the heat dissipation effect of the battery 20. As mentioned above, the graphene coating 2 is sprayed in the groove 11, and the outer surface of the graphene coating 2 is flush with the outer surface of the liquid cooling plate body 1. Correspondingly, the depth of the groove 11 is 0.1 mm.

[0035] In some embodiments, to enable the liquid cooling plate body 1 to perform cooling, the liquid cooling plate 10 further includes inlet / outlet end caps 3 and tail end caps 4. The inlet / outlet end caps 3 are provided with an inlet 31 and an outlet 32. The liquid cooling plate body 1 has multiple inlet channels 12 and outlet channels 13 extending along its length and penetrating both ends. The inlet / outlet end caps 3 are located at one end of the liquid cooling plate body 1, with the inlet 31 connected to the inlet channel 12 and the outlet 32 ​​connected to the outlet channel 13. The tail end cap 4 is located at the other end of the liquid cooling plate body 1, where the inlet channel 12 and outlet channel 13 are interconnected. With this design, the coolant enters the inlet channel 12 through the inlet 31, flows to the outlet channel 13, and finally exits through the outlet 32. Heat exchange occurs between the coolant and the liquid cooling plate body 1, thereby removing heat from the liquid cooling plate body 1.

[0036] Furthermore, in order to increase the liquid flow rate at the inlet 31, a first chamfer α is provided on the side of the inlet 31 away from the liquid flow channel 12, and a second chamfer β is provided on the side of the inlet 31 facing the liquid flow channel 12, so as to increase the liquid flow rate.

[0037] Preferably, the size of the first chamfer α is α = 30°, and the size of the second chamfer β is β = 45°.

[0038] Furthermore, in order to increase the liquid output at the outlet 32, a third chamfer γ is provided on the side of the outlet 32 ​​away from the liquid outlet channel 13, and a fourth chamfer δ is provided on the side of the outlet 32 ​​facing the liquid outlet channel 13, so as to increase the liquid output.

[0039] Preferably, the third chamfer γ has a size of γ = 30°, and the fourth chamfer δ has a size of δ = 30°.

[0040] Furthermore, the inlet / outlet end cap 3 is provided with a first insertion interface having a first bevel 33. One end of the liquid cooling plate body 1 is inserted into the first insertion interface to a depth of 5mm. The first bevel 33 is filled with glass fiber solder to weld the inlet / outlet end cap 3 to the liquid cooling plate body 1. This design makes the weld between the inlet / outlet end cap 3 and the liquid cooling plate body 1 more robust.

[0041] Furthermore, the tail end cap 4 is provided with a second insertion interface with a second bevel 41. The other end of the liquid cooling plate body 1 is inserted into the second insertion interface to a depth of 5mm. The second bevel 41 is filled with glass fiber solder to weld the tail end cap 4 to the liquid cooling plate body 1. This design makes the weld between the tail end cap 4 and the liquid cooling plate body 1 more secure.

[0042] This invention provides a liquid cooling plate 10, comprising a long strip-shaped liquid cooling plate body 1 and multiple graphene coatings 2. The graphene coatings 2 are sprayed at intervals along the length of the liquid cooling plate body 1, with the spacing between adjacent graphene coatings 2 equal to the spacing between adjacent batteries 20. The size of each graphene coating 2 is adapted to and adheres to the size of the batteries 20. With this design, the heat generated by the batteries 20 can be efficiently conducted to the liquid cooling plate body 1 through the graphene coatings 2, and then dissipated by the liquid cooling plate body 1, thus ensuring good performance and lifespan of the battery pack. Furthermore, because the graphene coatings 2 are spaced apart and their size is adapted to the size of the batteries 20, the waste of inkjet printing raw materials caused by spraying graphene coatings 2 on areas of the liquid cooling plate body 1 that are not in contact with the batteries 20 can be avoided. In summary, this liquid cooling plate 10 provides efficient heat dissipation for the batteries 20 while also reducing production costs and saving resources.

[0043] The above provides a detailed description of a liquid cooling plate disclosed in the embodiments of this utility model. This article uses specific examples to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand a liquid cooling plate of this utility model and its core idea. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid cooling plate for cooling a battery pack composed of a plurality of battery cells arranged at intervals, characterized by, The liquid cooling plate body (1) comprises a plurality of graphene coating layers (2) which are sprayed on the liquid cooling plate body (1) along the length direction of the liquid cooling plate body (1) at intervals, the interval between two adjacent graphene coating layers (2) is equal to the interval between two adjacent batteries (20), and the size of each graphene coating layer (2) is matched with the size of each battery (20).

2. The liquid cold plate of claim 1, wherein: The liquid cooling plate body (1) is provided with a plurality of grooves (11) matched with the graphene coating layers (2), and the graphene coating layers (2) are sprayed in the grooves (11) respectively, and the outer surface of the graphene coating layer (2) is flush with the outer surface of the liquid cooling plate body (1).

3. The liquid cold plate of claim 1, wherein: The thickness of each graphene coating layer (2) is 0.1mm.

4. The liquid cold plate of any of claims 1 to 3, wherein: The liquid cooling plate (10) further comprises an inlet and outlet end cover (3) and a tail end cover (4), the inlet and outlet end cover (3) is provided with an inlet port (31) and an outlet port (32), the liquid cooling plate body (1) is provided with a plurality of inlet flow channels (12) and outlet flow channels (13) which extend along the length direction of the liquid cooling plate body (1) and penetrate through both ends, the inlet and outlet end cover (3) is arranged at one end of the liquid cooling plate body (1), the inlet port (31) is communicated with the inlet flow channel (12), the outlet port (32) is communicated with the outlet flow channel (13), and the tail end cover (4) is arranged at the other end of the liquid cooling plate body (1), the inlet flow channel (12) and the outlet flow channel (13) at the other end of the liquid cooling plate body (1) are communicated with each other.

5. The liquid cold plate of claim 4, wherein: The side of the inlet port (31) away from the inlet flow channel (12) is provided with a first chamfer α, and the side of the inlet port (31) facing the inlet flow channel (12) is provided with a second chamfer β.

6. The liquid cold plate of claim 5, wherein: The size of the first chamfer α is α=30°, and the size of the second chamfer β is β=45°.

7. The liquid cold plate of claim 4, wherein: The side of the outlet port (32) away from the outlet flow channel (13) is provided with a third chamfer γ, and the side of the outlet port (32) facing the outlet flow channel (13) is provided with a fourth chamfer δ.

8. The liquid cold plate of claim 7, wherein: The size of the third chamfer γ is γ=30°, and the size of the fourth chamfer δ is δ=45°.

9. The liquid cold plate of claim 4, wherein: The inlet and outlet end cover (3) is provided with a first plug-in port with a first bevel (33), one end of the liquid cooling plate body (1) is plugged into the first plug-in port, and the first bevel (33) is filled with glass fiber solder to weld the inlet and outlet end cover (3) to the liquid cooling plate body (1).

10. The liquid cold plate of claim 4, wherein: The tail end cover (4) is provided with a second plug-in port with a second bevel (41), the other end of the liquid cooling plate body (1) is plugged into the second plug-in port, and the second bevel (41) is filled with glass fiber solder to weld the tail end cover (4) to the liquid cooling plate body (1).

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