Multi-working-medium multidirectional-flow composite liquid cooling plate

Abstract

The utility model relates to the technical field of battery cold plates, in particular to a multi-working-medium multi-flow composite liquid cooling plate, which comprises a lower layer plate, the upper-layer plate covers the surface of the side, provided with the groove, of the lower-layer plate in a closed manner; the embedded module is arranged in a groove sealed by the lower layer plate and the lower layer plate, a fluid channel is arranged in the embedded module and penetrates through the main body extension direction of the embedded module, and a space between the embedded module and the inner wall of the groove is a flow channel. According to the battery liquid cooling plate, the flow channel area can be increased, the heat exchange efficiency is improved, and stepped cooling heat exchange of the heat exchange area is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cold plates, in particular to a multi-working medium multi-directional flow composite liquid cold plate. Background Art

[0002] At present, battery liquid cooling plates are mainly divided into stamping plate type liquid cooling plates and harmonica tube type liquid cooling plates. Figure 1 As shown, the stamped plate type liquid cooling plate is generally welded into a whole by brazing an upper plate 14, a lower plate 11, and a metal joint 15. The lower plate 11 is formed by stamping a mold to form a flow channel 12 and a welding rib surface 13. The flow channel 12 circulates the cooling medium, and the welding rib surface 13 is welded to the upper plate 14. Due to the existence of the welding rib surface 13, the entire cold plate flow channel 12 area accounts for a relatively small proportion. The entire flow channel 12 forms a single flow channel cavity, which can only circulate one cooling medium or exchange heat with a single heat source, and there is a situation where the inlet area is too cold, the outlet area is too hot, and the overall temperature uniformity is poor. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a multi-working medium and multi-directional flow composite liquid cooling plate. The battery liquid cooling plate can increase the flow channel area, improve the heat exchange efficiency, and realize step cooling and heat exchange in the heat exchange area.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A combined structure battery liquid cooling plate, comprising

[0006] A lower plate, one side surface of which has a groove;

[0007] An upper plate, which is closed and covers the surface of the lower plate on one side having the groove;

[0008] The embedded module is arranged in the groove enclosed by the lower plate and the lower plate. The embedded module has a fluid channel inside, which runs through the main extension direction of the embedded module. The space between the embedded module and the inner wall of the groove is the flow channel.

[0009] Preferably, two first metal joints are installed on the upper plate, and the two first metal joints are respectively connected to the flow channel, and the two first metal joints are respectively used to input and output coolant to the flow channel.

[0010] Preferably, an opening communicating with the fluid channel is formed at an end of the embedded module, and the openings at both ends of the embedded module are respectively communicated with the two first metal joints.

[0011] Preferably, two second metal joints are installed on the upper plate, and the two second metal joints are respectively connected to the fluid channels inside the embedded module.

[0012] Preferably, the groove has a certain extension length, the embedded module is arranged along the extension direction of the flow channel, and the shape of the embedded module matches the shape of the groove.

[0013] Preferably, the embedded modules can be combined in multiples.

[0014] Preferably, the cross-sectional areas of the flow channels are the same or different (ie, special-shaped cross-sections).

[0015] The beneficial effects of using the utility model are:

[0016] The battery liquid cooling plate eliminates or reduces the welding rib surface on the lower plate in the prior art, and changes the structure of the original welding rib surface into an embedded module. A fluid channel is opened inside the embedded module, and a cooling medium can be transported through the fluid channel. For example, one cooling medium is transported in an optional flow channel, and another cooling medium is transported in the original flow channel, or the cooling medium transported in the original flow channel and the transport channel are in opposite directions, which can increase the flow channel area, improve the heat exchange efficiency, and realize step cooling and heat exchange of the heat exchange area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a battery liquid cooling plate in the prior art.

[0018] Figure 2 It is a schematic diagram of the structure of the multi-working medium and multi-directional flow composite liquid cooling plate of the utility model.

[0019] Figure 3 It is a structural schematic diagram of another embodiment of the multi-working medium multi-directional flow composite liquid cooling plate of the utility model.

[0020] Figure 4 It is a schematic diagram of the embedded module and the flow channel conveying the cooling medium in opposite directions.

[0021] Figure 5 Schematic diagram of the delivery of different cooling media to the embedded modules and flow channels.

[0022] Reference numerals include:

[0023] 11-lower plate, 12-flow channel, 13-welding rib surface, 14-upper plate, 15-metal joint;

[0024] 21 - first lower plate, 22 - first flow channel, 23 - embedded module, 24 - first metal joint, 25 - first upper plate, 26 - second metal joint, 27 - third metal joint. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the technical solution more clear, the technical solution is further described in detail below in conjunction with specific implementation methods. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the technical solution.

[0026] Example 1

[0027] To solve the problem that in the prior art, the entire first flow channel 22 forms a single first flow channel 22 cavity, which can only flow one cooling medium or exchange heat with a single heat source, and there are problems such as overcooling in the inlet area and overheating in the outlet area, and poor overall temperature uniformity. Figure 1 As shown, this embodiment proposes a multi-working medium and multi-directional flow composite liquid cooling plate, including a first lower plate 21, one side surface of which has a first flow channel 22; a first upper plate 25, which covers the surface of the first lower plate 21 having the flow to one side; an embedded module 23, whose shape is consistent with the shape of the first flow channel 22 (in other embodiments, it can also be a special-shaped cross-section), the embedded module 23 is located in the first flow channel 22, and the interior of the embedded module 23 has a fluid channel, and the fluid channel runs through the main extension direction of the embedded module 23; a first metal joint 24, which is respectively connected to the first flow channel 22 and the fluid channel, so that the coolant can be transported through the first flow channel 22 and the fluid channel.

[0028] In this embodiment, the first lower plate 21 is formed by stamping to reduce or eliminate welding ribs, forming a wider first flow channel 22 area for arranging the embedded module 23. The embedded module 23 can be processed into a single cavity, multiple cavities or other complex shapes and flow direction structures, or a combination of multiple embedded modules. The first upper plate 25, the first lower plate 21, the embedded module 23, and the metal joints are brazed into a whole.

[0029] In this embodiment, the cooling medium can be input through a first metal joint 24, and the cooling medium is transported through the internal fluid channel of the embedded module 23 and the first flow to another first metal joint 24. In this embodiment, the embedded module 23 replaces the original welded rib surface to increase the area where the cooling medium flows and improve the heat exchange efficiency.

[0030] Example 2

[0031] like Figure 3As shown, this embodiment proposes a multi-working medium and multi-directional flow composite liquid cooling plate, including a lower plate, one side surface of which has a flow channel; a first upper plate 25, which covers the surface of the lower plate with a flow channel on one side; an embedded module 23, whose shape is consistent with the shape of the flow channel, the embedded module 23 is located in the flow channel, and the interior of the embedded module 23 has a fluid channel, and the fluid channel runs through the main extension direction of the embedded module 23; a second metal joint 26, which has two, connected at both ends of the flow channel, for transporting the first coolant along the flow channel; a second metal joint 26, which has two, connected at both ends of the embedded module 23, for transporting the second coolant along the flow channel.

[0032] In this embodiment, since the second metal joint 26 and the first flow channel 22 convey a cooling liquid, and the third metal joint 27 and the inside of the embedded module 23 convey a cooling liquid, the first flow channel 22 and the embedded module 23 are completely separated and flow independently.

[0033] Therefore, the combined structure battery liquid cooling plate in this embodiment can achieve the following two effects.

[0034] like Figure 4 As shown, the first type: the same coolant is used in the embedded module 23 and the first flow channel 22, but the flow direction of the coolant in the embedded module 23 and the first flow channel 22 is opposite, which can achieve cold and heat neutralization in the heat exchange area and improve the overall temperature uniformity.

[0035] like Figure 5 As shown, the second type: different cooling media are introduced into the embedded module 23 and the first flow channel 22, and the different physical properties of different cooling media are used to achieve step cooling and heat exchange in the heat exchange area. Among them, a second metal joint 26A serves as the input port of the first cooling medium, and another second metal joint 26B serves as the output port of the first cooling medium. A third metal joint 27A serves as the input port of the second cooling medium, and another third metal joint 27B serves as the output port of the second cooling medium.

[0036] In addition, the multi-working medium and multi-directional flow composite liquid cooling plate in this embodiment can also realize cooling and heat exchange of the cooling medium of the power battery and other systems by one medium, thereby realizing the integration of the cooling system.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present technical content. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of this patent.

Claims

1. A multi-media multi-directional flow composite liquid cooling plate, characterized in that: include A lower plate, one side surface of which has a groove; An upper plate, which is closed and covers the surface of the lower plate on one side having the groove; The embedded module is arranged in the groove enclosed by the lower plate and the lower plate. The embedded module has a fluid channel inside, which runs through the main extension direction of the embedded module. The space between the embedded module and the inner wall of the groove is the flow channel.

2. The multi-media multi-directional flow composite liquid cooling plate according to claim 1, characterized in that: Two first metal joints are also installed on the upper plate, and the two first metal joints are respectively connected to the flow channel, and the two first metal joints are respectively used to input and output cooling liquid to the flow channel.

3. The multi-media multi-directional flow composite liquid cooling plate according to claim 2, characterized in that: An opening communicating with the fluid channel is formed at the end of the embedded module, and the openings at both ends of the embedded module are respectively communicated with the two first metal joints.

4. The multi-media multi-directional flow composite liquid cooling plate according to claim 2, characterized in that: Two second metal joints are also installed on the upper plate, and the two second metal joints are respectively connected to the fluid channels inside the embedded module.

5. The multi-media multi-directional flow composite liquid cooling plate according to claim 1, characterized in that: The groove has a certain extension length, the embedded module is arranged along the extension direction of the flow channel, and the shape of the embedded module matches the shape of the groove.

6. The multi-media multi-directional flow composite liquid cooling plate according to claim 5, characterized in that: The cross-sectional areas of the flow channels may be the same or different.

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