Double-layer uniform-temperature liquid cooling plate

Abstract

The utility model provides a double-layer uniform-temperature liquid cooling plate which comprises a liquid cooling plate body, an upper cooling liquid inlet pipe nozzle, an upper cooling liquid outlet pipe nozzle, a lower cooling liquid inlet pipe nozzle and a lower cooling liquid outlet pipe nozzle. The cooling channels of the cooling liquid inlet in the upper surface of the middle part of the liquid cooling plate body and the cooling channels of the cooling liquid outlet in the lower surface of the middle part of the liquid cooling plate body are arranged in a staggered manner, so that the cooling liquid in the liquid cooling plate body flows from one side to the other side in a crossed flow direction, and counter-flow type convection heat exchange is carried out; the temperature difference between cooling liquid in the liquid cooling plate body is reduced, the cost of a battery pack is reduced, the heat dissipation efficiency is improved, the heat dissipation energy consumption is reduced, the structure is simple, machining and manufacturing are convenient, and design is ingenious.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, in particular to a double-layer temperature-averaging liquid cooling plate. Background Art

[0002] Currently, the main power source of all-terrain vehicles (ATVs) is still fuel engines. In order to solve the world's energy security and sustainable development issues, pure electric ATVs, as a new energy vehicle type that uses electricity as propulsion power, are gaining increasing attention.

[0003] New energy battery packs generate a lot of heat during operation. Liquid cooling plates can effectively dissipate the heat of the battery cells, but there are many deficiencies in the uniformity of heat dissipation, which ultimately increases the temperature difference between the battery cells and affects the performance and life of the battery. Secondly, traditional liquid cooling plates can only use single-sided heat dissipation. When dissipating heat for more battery cells, a corresponding number of liquid cooling plates are required, which increases the cost of the battery pack, and has low heat dissipation efficiency and high heat dissipation energy consumption. Summary of the invention

[0004] The utility model aims to solve the above-mentioned technical problems and provides a new type of double-layer temperature-averaging liquid cooling plate, and reasonably designs the flow layout of the liquid cooling channels on both sides of the liquid cooling plate body, that is, the cooling channels of the coolant inlet on the upper surface of the middle part of the liquid cooling plate body and the cooling channels of the coolant outlet on the lower surface of the middle part of the liquid cooling plate body are arranged in a staggered manner, so that the coolant inside the liquid cooling plate body flows from one side to the other side, and flows in a cross-flow direction, and performs countercurrent convection heat exchange, so that the temperature difference between the coolants inside the liquid cooling plate body is reduced, and finally the temperature difference between the battery cells is reduced to achieve the effect of uniform temperature heat dissipation; at the same time, both sides of the liquid cooling plate with double-layer flow channels can realize heat dissipation of the battery cell module, and one liquid cooling plate can dissipate heat for more battery cells, thereby reducing the cost of the battery pack, improving the heat dissipation efficiency, and reducing the heat dissipation energy consumption. The structure is simple, easy to process and manufacture, and the design is ingenious.

[0005] The utility model is realized by the following technical solutions:

[0006] A double-layer temperature-averaging liquid cooling plate, comprising a liquid cooling plate body, an upper cooling liquid inlet nozzle, an upper cooling liquid outlet nozzle, a lower cooling liquid inlet nozzle, and a lower cooling liquid outlet nozzle, wherein the upper surface of the middle portion of the liquid cooling plate body is provided with an upper cooling liquid inlet nozzle and an upper cooling liquid outlet nozzle which are parallel to each other, and the lower surface of the middle portion of the liquid cooling plate body is provided with a lower cooling liquid inlet nozzle and a lower cooling liquid outlet nozzle which are parallel to each other, wherein the upper cooling liquid inlet nozzle is connected to one end of a cooling channel on the upper surface of the middle portion of the liquid cooling plate body, and the upper cooling liquid outlet nozzle is connected to the other end of a cooling channel on the upper surface of the middle portion of the liquid cooling plate body, and the lower cooling liquid The inlet nozzle is connected to one end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body, and the lower coolant outlet nozzle is connected to the other end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body. The cooling channel of the coolant inlet on the upper surface of the middle part of the liquid-cooled plate body and the cooling channel of the coolant outlet on the lower surface of the middle part of the liquid-cooled plate body are arranged in a staggered manner. The coolant inside the liquid-cooled plate body flows from one side to the other side in a cross-flow direction, and countercurrent convection heat exchange is performed to reduce the temperature difference between the coolants inside the liquid-cooled plate body, and finally reduce the temperature difference between the battery cells to achieve the effect of uniform temperature heat dissipation.

[0007] As a further feature, the liquid cooling plate body comprises a substrate, an upper cover plate and a lower cover plate, an upper cover plate is arranged above the substrate, a lower cover plate is arranged below the substrate, a plurality of flow channel guide plates are arranged on the upper surface of the substrate, the plurality of flow channel guide plates are distributed at equal intervals, an upper cooling channel is arranged between two flow channel guide plates, a plurality of flow channel guide plates are arranged on the lower surface of the substrate, the plurality of flow channel guide plates are distributed at equal intervals, a lower cooling channel is arranged between two flow channel guide plates, the upper coolant inlet nozzle is connected to one end of the upper cooling channel, the upper coolant outlet nozzle is connected to the other end of the upper cooling channel, the lower coolant inlet nozzle is connected to one end of the lower cooling channel, the lower coolant outlet nozzle is connected to the other end of the lower cooling channel, the upper cover plate seamlessly connects and fastens the flow channel guide plate and the upper cooling channel to the upper surface of the substrate, and the lower cover plate seamlessly connects and fastens the flow channel guide plate and the lower cooling channel to the lower surface of the substrate.

[0008] As a further feature, the upper cooling channels on the upper surface of the substrate and the lower cooling channels on the lower surface of the substrate are arranged in a staggered manner.

[0009] As a further feature, the upper cooling channel and the lower cooling channel are S-shaped.

[0010] The beneficial effects of the utility model are:

[0011] (1) Reasonably design the layout of the liquid cooling channel flow on both sides of the liquid cooling plate body, that is, the cooling channel at the coolant inlet on the upper surface of the middle part of the liquid cooling plate body and the cooling channel at the coolant outlet on the lower surface of the middle part of the liquid cooling plate body are arranged in a staggered manner, so that the coolant inside the liquid cooling plate body flows from one side to the other side, and flows in a cross-flow direction, and countercurrent convection heat exchange is performed, so that the temperature difference between the coolants inside the liquid cooling plate body is reduced, and finally the temperature difference between the battery cells is reduced, so as to achieve the effect of uniform temperature heat dissipation;

[0012] (2) The double-layer temperature-averaging liquid cooling plate has a double-layer flow channel, and both sides of the liquid cooling plate body can dissipate heat for the battery cell module. One liquid cooling plate body can dissipate heat for more battery cells, reduce the cost of the battery pack, improve the heat dissipation efficiency, and reduce the heat dissipation energy consumption. It has a simple structure, is easy to process and manufacture, and has an ingenious design. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the double-layer temperature-averaging liquid cooling plate of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal top view of the double-layer temperature-averaging liquid cooling plate of the utility model without the upper cover and the lower cover;

[0015] Figure 3 This is a schematic diagram of the explosion structure of the double-layer temperature-equalizing liquid cooling plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the upper surface structure of the substrate of the utility model;

[0017] Figure 5 This is a schematic diagram of the lower surface structure of the substrate of the utility model;

[0018] Figure numerals: 1, liquid cooling plate body; 11, base plate; 12, upper cover plate; 13, lower cover plate; 14, flow channel guide plate; 15, upper cooling channel; 16, lower cooling channel; 2, upper coolant inlet nozzle; 3, upper coolant outlet nozzle; 4, lower coolant inlet nozzle; 5, lower coolant outlet nozzle. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] Refer to Figure 1-5 As shown, a double-layer temperature-averaging liquid cooling plate comprises a liquid cooling plate body 1, an upper cooling liquid inlet nozzle 2, an upper cooling liquid outlet nozzle 3, a lower cooling liquid inlet nozzle 3, and a lower cooling liquid outlet nozzle 4. The upper surface of the middle part of the liquid cooling plate body 1 is provided with an upper cooling liquid inlet nozzle 2 and an upper cooling liquid outlet nozzle 3 which are parallel to each other. The lower surface of the middle part of the liquid cooling plate body 1 is provided with a lower cooling liquid inlet nozzle 4 and a lower cooling liquid outlet nozzle 5 which are parallel to each other. The upper cooling liquid inlet nozzle 2 is connected to one end of the cooling channel on the upper surface of the middle part of the liquid cooling plate body 1, and the upper cooling liquid outlet nozzle 3 is connected to the other end of the cooling channel on the upper surface of the middle part of the liquid cooling plate body 1. The lower coolant inlet nozzle 4 is connected to one end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body 1, and the lower coolant outlet nozzle 5 is connected to the other end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body 1. The cooling channel of the coolant inlet on the upper surface of the middle part of the liquid-cooled plate body 1 and the cooling channel of the coolant outlet on the lower surface of the middle part of the liquid-cooled plate body 1 are arranged in a staggered manner. The coolant inside the liquid-cooled plate body 1 flows from one side to the other side in a cross-flow direction, and countercurrent convection heat exchange is performed to reduce the temperature difference between the coolants inside the liquid-cooled plate body 1, and finally reduce the temperature difference between the battery cells to achieve the effect of uniform temperature heat dissipation.

[0023] Preferably, the liquid cooling plate body 1 includes a substrate 11, an upper cover plate 12, and a lower cover plate 13. The upper cover plate 12 is provided above the substrate 11, and the lower cover plate 13 is provided below the substrate 11. A plurality of flow channel guide plates 14 are provided on the upper surface of the substrate 11, and the plurality of flow channel guide plates 14 are distributed at equal intervals, and an upper cooling channel 15 is provided between two flow channel guide plates 14. A plurality of flow channel guide plates 14 are provided on the lower surface of the substrate 11, and the plurality of flow channel guide plates 14 are distributed at equal intervals, and a lower cooling channel 16 is provided between two flow channel guide plates 14. The upper coolant inlet nozzle 2 is connected to one end of the upper cooling channel 15, the upper coolant outlet nozzle 3 is connected to the other end of the upper cooling channel 15, the lower coolant inlet nozzle 4 is connected to one end of the lower cooling channel 16, and the lower coolant outlet nozzle 5 is connected to the other end of the lower cooling channel 16. The upper cover plate 12 seamlessly connects the flow channel guide plate 14 and the upper cooling channel 15 to the upper surface of the substrate 11, and the lower cover plate 13 seamlessly connects the flow channel guide plate 14 and the lower cooling channel 16 to the lower surface of the substrate 11.

[0024] Preferably, the upper cooling channels 15 on the upper surface of the substrate 11 and the lower cooling channels 16 on the lower surface of the substrate 11 are arranged in a staggered manner.

[0025] Preferably, the upper cooling channel 15 and the lower cooling channel 16 are S-shaped.

[0026] In summary, a double-layer temperature-averaging liquid cooling plate is provided, in which the flow directions of the liquid cooling channels on both sides of the liquid cooling plate body 1 are arranged, and the cooling channels at the coolant inlet on the middle upper surface of the liquid cooling plate body 1 and the cooling channels at the coolant outlet on the middle lower surface of the liquid cooling plate body 1 are arranged in a staggered manner. The coolant inside the liquid cooling plate body 1 flows from one side to the other side in a cross-flow direction, and performs countercurrent convection heat exchange, so that the temperature difference between the coolants inside the liquid cooling plate body is reduced, and finally the temperature difference between the battery cells is reduced to achieve the effect of uniform temperature heat dissipation. At the same time, both side surfaces of the liquid cooling plate with double-layer flow channels can realize heat dissipation of the battery cell module. One liquid cooling plate can dissipate heat for more battery cells, thereby reducing the cost of the battery pack, improving the heat dissipation efficiency, and reducing the heat dissipation energy consumption. The structure is simple, easy to process and manufacture, and the design is ingenious.

[0027] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also make appropriate changes and modifications to the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A double-layer temperature-averaging liquid cold plate, characterized in that: The cooling plate body comprises a cooling plate body, an upper cooling liquid inlet nozzle, an upper cooling liquid outlet nozzle, a lower cooling liquid inlet nozzle and a lower cooling liquid outlet nozzle. The upper surface of the middle part of the cooling plate body is provided with an upper cooling liquid inlet nozzle and an upper cooling liquid outlet nozzle which are parallel to each other. The lower surface of the middle part of the cooling plate body is provided with a lower cooling liquid inlet nozzle and a lower cooling liquid outlet nozzle which are parallel to each other. The upper cooling liquid inlet nozzle is connected to one end of the cooling channel on the upper surface of the middle part of the cooling plate body, the upper cooling liquid outlet nozzle is connected to the other end of the cooling channel on the upper surface of the middle part of the cooling plate body, and the lower cooling liquid inlet nozzle is connected to the cooling plate body. One end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body is connected, and the lower coolant outlet nozzle is connected to the other end of the cooling channel on the lower surface of the middle part of the liquid-cooled plate body. The cooling channel of the coolant inlet on the upper surface of the middle part of the liquid-cooled plate body and the cooling channel of the coolant outlet on the lower surface of the middle part of the liquid-cooled plate body are arranged in a staggered manner. The coolant inside the liquid-cooled plate body flows from one side to the other side in a cross-flow direction, and countercurrent convection heat exchange is performed to reduce the temperature difference between the coolants inside the liquid-cooled plate body, and finally reduce the temperature difference between the battery cells, thereby achieving the effect of uniform temperature heat dissipation.

2. The double-layer temperature-averaging liquid cold plate according to claim 1, characterized in that: The liquid cooling plate body comprises a substrate, an upper cover plate and a lower cover plate, an upper cover plate is arranged above the substrate, a lower cover plate is arranged below the substrate, a plurality of flow channel guide plates are arranged on the upper surface of the substrate, the plurality of flow channel guide plates are distributed at equal intervals, an upper cooling channel is arranged between two flow channel guide plates, a plurality of flow channel guide plates are arranged on the lower surface of the substrate, the plurality of flow channel guide plates are distributed at equal intervals, a lower cooling channel is arranged between two flow channel guide plates, the upper coolant inlet nozzle is communicated with one end of the upper cooling channel, the upper coolant outlet nozzle is communicated with the other end of the upper cooling channel, the lower coolant inlet nozzle is communicated with one end of the lower cooling channel, the lower coolant outlet nozzle is communicated with the other end of the lower cooling channel, the upper cover plate seamlessly connects the flow channel guide plate and the upper cooling channel to the upper surface of the substrate, and the lower cover plate seamlessly connects the flow channel guide plate and the lower cooling channel to the lower surface of the substrate.

3. The double-layer temperature-averaging liquid cold plate according to claim 2, characterized in that: The upper cooling channels on the upper surface of the substrate and the lower cooling channels on the lower surface of the substrate are arranged in a staggered manner.

4. The double-layer temperature-averaging liquid cooling plate according to claim 3, characterized in that: The upper cooling channel and the lower cooling channel are in an S-shape.

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