Refrigerant direct cooling plate with suspended wick

Abstract

The utility model discloses a refrigerant direct cooling plate with a suspended wick, the direct cooling plate comprises a plate body and the wick, one surface of the plate body is an outer heat exchange surface, a plurality of heat exchange runners which are opposite to the heat exchange surface and are used for conveying a refrigerant working medium are arranged in the plate body, and one surfaces of the heat exchange runners and the outer heat exchange surface are inner heat exchange surfaces; at least part of the liquid absorption core is in contact with the inner heat exchange surface and partially exchanges heat in the heat exchange runner, and the liquid absorption core is provided with a capillary liquid conveying structure and is used for being in contact with the inner heat exchange surface for heat exchange and conveying a refrigerant working medium in the heat exchange runner inwards for heat exchange. The liquid absorption core is hung in the liquid channel, so that the upper shell plate and the lower shell plate can make contact with the refrigerant working medium to absorb heat for phase change through the capillary action of the liquid absorption core, the utilization rate of the refrigerant working medium is increased, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery temperature control, and in particular to a refrigerant direct cooling plate with a suspended liquid absorption core. BACKGROUND

[0002] With the transformation of global energy structure and the improvement of environmental protection consciousness, the market demand for new energy vehicles, especially electric vehicles, is rapidly growing. In this context, the performance and safety of batteries, as the core components of electric vehicles, directly affect the performance of the whole vehicle and the driving experience of users. A large amount of heat is generated during the charging and discharging process of the battery. If this heat cannot be effectively dissipated, not only will the service life of the battery be significantly shortened, but also safety accidents such as thermal runaway may occur. Therefore, designing an efficient battery thermal management system becomes critical. This not only involves improving the life and performance of the battery, but also relates to the safety of the whole vehicle, as well as the trust and acceptance of new energy vehicles by users.

[0003] Currently, the refrigerant direct cooling plate widely used in the market is based on the principle of convective heat transfer for battery heat dissipation. This cooling method removes the heat generated by the battery through the flow of refrigerant, and is simple in design and low in cost, so it has been widely applied. However, with the increase in battery capacity and the development of fast charging technology, the heat dissipation capacity of traditional direct cooling plates gradually shows its limitations. In high load conditions, traditional direct cooling plates are prone to columnar gas plugs and local overheating due to poor temperature uniformity and low limit heat dissipation power, resulting in reduced heat dissipation efficiency and difficulty in meeting the needs of modern high-capacity batteries. These limitations not only affect the performance of the battery, but also have a negative impact on the continuous and efficient operation of the vehicle.

[0004] The main disadvantage of traditional direct cooling plates is that the flow path of the refrigerant is relatively fixed. When the battery is in a high load state, the flow resistance of the refrigerant increases, and the local cooling efficiency decreases. In addition, the unstable flow of the refrigerant in the flow channel is prone to form columnar gas plugs, which leads to poor medium flow and significantly weakens the heat dissipation effect. In the case of high charging or discharging power, the non-uniformity of the cooling medium is further aggravated, forming local hot spots, which affects the stability and safety of the battery. These problems limit the application of traditional direct cooling plates under high performance requirements, especially in high temperature environments, where their heat transfer performance decreases even more significantly, further limiting the performance of traditional cooling systems under complex working conditions. At the same time, the volatility of the refrigerant increases at high temperatures, further affecting the long-term stability of the system.

[0005] In addition, the structural design of traditional direct cooling plates has some limitations. Since it relies on the flow of refrigerant in the pipeline for heat transfer, the stability of the refrigerant flow is crucial to the cooling effect. In complex working environments, the refrigerant flow is easily affected by external factors such as vibration or inclination, resulting in reduced cooling efficiency. Although the manufacturing cost of traditional direct cooling plates is low, the cooling efficiency and reliability are difficult to meet the demand of the new energy vehicle industry for high-efficiency and reliable cooling systems. In order to solve these problems, the industry has begun to explore various new cooling solutions, including liquid cooling plates, phase change material cooling, and the application of other new cooling media.

[0006] Therefore, it is particularly necessary to develop a new type of refrigerant direct cooling plate with low cost, high heat dissipation efficiency, convenient use and easy to carry. Content of the utility model

[0007] The purpose of the present application is to at least overcome one of the deficiencies of the prior art, and to provide a refrigerant direct cooling plate with a suspended wick. The direct cooling plate uses the principle of phase change latent heat to dissipate heat. The refrigerant working fluid is in contact with the upper and lower shell plates to absorb heat and undergo phase change to carry away a large amount of heat. The refrigerant working fluid carrying heat is then discharged to achieve the effect of heat dissipation. The present application suspends the wick in the liquid channel, so that the upper and lower shell plates can contact the refrigerant working fluid through the capillary action of the wick to absorb heat and undergo phase change, thereby improving the utilization rate of the refrigerant working fluid and improving the heat dissipation efficiency.

[0008] To achieve the above-mentioned purpose, the present application discloses a refrigerant direct cooling plate with a suspended wick, which comprises a plate body and a wick. One side of the plate body is an outer heat exchange surface, and the plate body is provided with a plurality of heat exchange channels for conveying refrigerant working fluid opposite to the heat exchange surface. One side of the heat exchange channel is an inner heat exchange surface. The wick is at least partially in contact with the inner heat exchange surface and partially in the heat exchange channel. The wick has a capillary liquid transport structure for contacting and exchanging heat with the inner heat exchange surface and conveying the refrigerant working fluid in the heat exchange channel to the inner heat exchange surface.

[0009] In an optional solution, the plate body comprises a bottom plate and a panel opposite to the bottom plate. The bottom plate has a groove, and the cover plate seals the opening surface of the groove to form the heat exchange channel.

[0010] In an optional solution, the heat exchange channel is in a serpentine shape.

[0011] In an optional solution, each heat exchange channel is arranged in parallel.

[0012] In an optional solution, a plurality of flow guide openings are arranged between adjacent heat exchange channels to guide the flow of adjacent channels.

[0013] In an optional solution, the cross section of the heat exchange channel is in one of a rectangular shape, a trapezoidal shape, and an arc shape.

[0014] In an alternative, the wick is in the form of an integral plate, sandwiched between the base plate and the face plate.

[0015] In an alternative, the wick is in the form of a split structure, each split being in the form of an inverted cap cross-section, sandwiched between the base plate and the face plate.

[0016] In an alternative, at least part of the heat exchange channel is provided with a wick in the form of an inverted cap cross-section, the upper end face of the wick being in contact with the inner heat exchange surface, the rest being spaced from the other surfaces of the heat exchange channel. In a suitable arrangement, the heat exchange channel is provided with a boss or support for fixing the wick.

[0017] In an alternative, the wick is in the form of an integral wavy concave-convex plate, sandwiched between the base plate and the face plate, and is provided with a bent protrusion extending into the heat exchange channel.

[0018] In an alternative, the wick is in the form of an integral plate, sandwiched between the base plate and the face plate, and is provided with a bent protrusion extending into the heat exchange channel and a fin plate extending out of the heat exchange channel.

[0019] Compared with the prior art, the present application has at least one of the following beneficial effects:

[0020] 1. Improved heat dissipation efficiency: By suspending the wick in the liquid channel, the capillary action of the wick ensures that the upper and lower shell plates are in contact with the coolant working medium, effectively improving the utilization rate of the coolant, solving the problem of poor temperature uniformity and local overheating in traditional direct cooling plates, and greatly improving the heat dissipation efficiency.

[0021] 2. Prevention of columnar gas plug and local overheating: The capillary action of the wick ensures uniform distribution of the coolant working medium, avoiding the columnar gas plug phenomenon that is prone to occur in traditional direct cooling plates, thereby improving the stability of coolant flow and reducing the risk of local overheating.

[0022] 3. Adaptability to complex working conditions: Through optimization of structural design, such as the suspension method of the wick and the special shape of the heat exchange channel (such as serpentine, trapezoidal, etc.), the direct cooling plate can still maintain good cooling effect in high load or complex environment (such as vibration or inclination), improving adaptability and stability.

[0023] 4. Improved structural stability and cooling efficiency: The inverted cap cross-section design of the wick and the support design in the heat exchange channel ensure the fixation and stability of the wick, avoiding instability problems during the flow of the coolant, and improving the stability and cooling efficiency of the overall structure.

[0024] 5. Low-cost high-efficiency heat dissipation scheme: the application has simple design, through the use of phase change latent heat principle and liquid absorption core, the heat dissipation efficiency is improved under the premise of not significantly increasing the manufacturing cost, compared with the existing high-cost cooling system, the design has cost advantage and is more practical.

[0025] The above-listed benefits are not exhaustive of all advantages. Other potential benefits and detailed technical implementations will be further disclosed in the embodiments or other description parts of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Aspects of the present disclosure will become more fully understood from the detailed description and accompanying drawings, in which:

[0027] Figure 1 is a structural schematic diagram of embodiment 1 of the present application.

[0028] Figure 2 is an exploded view of the structure of embodiment 1 of the present application.

[0029] Figure 3 is a cross-sectional structural schematic diagram of embodiment 1 of the present application.

[0030] Figure 4 is a partial cross-sectional structural schematic diagram of embodiment 2 of the present application.

[0031] Figure 5 is a partial cross-sectional structural schematic diagram of embodiment 3 of the present application.

[0032] Figure 6 is an exploded view of the structure of embodiment 4 of the present application. DETAILED DESCRIPTION

[0033] The present disclosure will be described below with reference to the accompanying drawings, which show several embodiments of the present disclosure. It should be understood that the present disclosure can be presented in many different ways, and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete, and to fully inform those skilled in the art of the scope of protection of the present disclosure. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0034] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, the size of some features can be distorted for the sake of clarity.

[0035] It is to be understood that the phraseology or terminology herein is for the purpose of description and not of limitation. The use of terms "including" and / or "comprising" and / or "having" and / or "containing" and / or "encompassing" and / or "consisting of and / or "consisting essentially of in the specification encompasses the same disclosure as the terms "comprising" and / or "including" and / or "containing" and / or "encompassing" and / or "consisting of and / or "consisting essentially of.

[0036] As used in the specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. As used in the specification and the appended claims, the term "or" as used in the "either of... or" and "at least one of... or" language, means "and / or" unless the context clearly dictates otherwise. As used in the specification and the appended claims, the terms "including" "comprising" and "having" are meant to be Embodiment

[0037] As Figures 1-3 shown, this embodiment illustrates a specific implementation of a refrigerant direct cooling plate with a suspended wick 4, supporting the technical features in the claims, facilitating understanding and implementation by professionals in the field. This embodiment aims to improve heat exchange efficiency through innovative structural design, ensuring the overall stability and reliability of the cooling system, thus demonstrating excellent performance in various application scenarios.

[0038] The overall structure of the direct cooling plate includes a plate body 1 and a wick 4 arranged inside the plate body 1. The plate body 1 is composed of a bottom plate 101 and a face plate 102, with the bottom plate 101 and the face plate 102 arranged oppositely. The bottom plate 101 contains multiple grooves 3, and the face plate 102 covers the opening surface of these grooves 3. Through sealing connection, the grooves 3 form closed heat exchange flow channels 2. The heat exchange flow channels 2 are used to transport refrigerant working medium and contain multiple parallel arranged segmented flow channels. Adjacent flow channels are interconnected through several guide ports 8, thereby realizing uniform flow of refrigerant working medium and heat exchange. In addition, the cross section of the heat exchange flow channels 2 can be rectangular, trapezoidal or arc-shaped to improve its heat exchange efficiency and structural adaptability.

[0039] The liquid absorbing core 4 is a wavy concave-convex plate integrated, installed between the bottom plate 101 and the face plate 102 of the plate body 1, and in partial contact with the heat exchange flow channel 2 inside the plate body 1. The liquid absorbing core 4 realizes the heat transfer and transport function of the refrigerant working medium between the heat exchange flow channel 2 and the inner heat exchange surface 6 through its capillary transport structure. Specifically, the liquid absorbing core 4 contains a plurality of bent protrusions, which partially extend into the heat exchange flow channel 2, ensuring that the liquid absorbing core 4 is in full contact with the working medium in the heat exchange flow channel 2, thereby significantly improving the heat exchange efficiency. Through the design of the hanging liquid absorbing core 4, the refrigerant working medium can be uniformly distributed between the inner heat exchange surface 6 and the flow channel by the capillary action of the liquid absorbing core 4, avoiding the problem of local overheating caused by uneven distribution of the refrigerant, and greatly improving the overall heat dissipation efficiency. In addition, the design of the capillary transport structure also ensures the uniform flow of the refrigerant working medium in the flow channel, reducing the problem of air blockage caused by poor flow, and improving the stability of the flow.

[0040] In this embodiment, the bottom plate 101 and the face plate 102 of the plate body 1 are made of materials with high thermal conductivity, such as aluminum alloy or copper. These materials can ensure efficient heat transfer and diffusion in the plate body 1. Aluminum alloy has the advantages of light weight, low cost and good thermal conductivity, and is widely used in related fields; copper is preferred for use in situations requiring higher heat transfer efficiency due to its higher thermal conductivity. The liquid absorbing core 4 is made of porous materials with good capillary action, such as metal fiber sintered materials or ceramic fibers, whose capillary structure helps to guide the refrigerant from the heat exchange flow channel 2 to the inner heat exchange surface 6, realizing continuous heat transfer. The selection of these materials ensures the efficiency and durability of the entire heat exchange system, allowing it to maintain stable heat exchange performance under long-term working conditions.

[0041] In order to further improve the cooling effect, the material of the liquid absorbing core 4 can be improved according to the specific application scenario, such as selecting composite materials to improve the capillary action and heat conduction ability. In actual operation, when the refrigerant working medium passes through the flow channel, the liquid absorbing core 4 can quickly absorb the refrigerant and distribute it evenly on the inner heat exchange surface 6 under the capillary action, thereby ensuring the uniformity of the temperature of the plate body 1 and reducing local overheating and air blockage. In addition, the presence of the liquid absorbing core 4 allows the refrigerant working medium to be absorbed and provided to the inner heat exchange surface 6 even if air blockage occurs, maintaining stable heat exchange operation. The thickness of the bottom plate and the face plate 102 of the plate body 1 is carefully designed to ensure that sufficient structural strength is provided while maximizing the heat conduction efficiency. These design improvements enable the refrigerant direct cooling plate to maintain stable performance in actual application for a long time.

[0042] In actual operation, when the refrigerant working fluid flows through the flow channel, the wick 4 is in close contact with the inner heat exchange surface 6. Through the capillary transport structure, the refrigerant can be quickly guided to the heat source location for heat exchange, achieving high-efficiency cooling. The bending protrusions on the wick 4 penetrate into the heat exchange flow channel 2, allowing the refrigerant to flow freely within the flow channel while fully contacting the surface of the wick 4, thereby accelerating heat transfer. The design of the flow guide openings in the heat exchange flow channel 2 ensures uniform refrigerant flow between adjacent flow channels, further enhancing the stability and efficiency of the heat exchange process. The number and position of the flow guide openings are carefully designed to ensure that the refrigerant maintains sufficient flow rate and consistency in flow direction within the flow channel, reducing dead zones and flow resistance in the flow channel, and further improving heat exchange efficiency.

[0043] To enhance the adaptability and stability of the system, the wick 4 in this embodiment adopts a suspension installation method, allowing it to adapt to the deformation of the plate body 1 under high load or vibration environment. This suspension design is achieved by setting a flexible support structure between the plate body 1 and the wick 4. When the plate body 1 is slightly deformed by external factors, the wick 4 can still maintain good contact with the inner heat exchange surface 6, ensuring uniform flow of the refrigerant and heat exchange efficiency. In addition, the flexible support structure can absorb part of the vibration energy, reducing the impact on the overall structure, further improving the stability of the system.

[0044] In actual application, especially in battery cooling systems, the direct cooling plate is used to efficiently cool the battery pack, ensuring that the battery maintains an appropriate operating temperature under high load conditions. By contacting the battery with the outer heat exchange surface 5 of the direct cooling plate, the direct cooling plate can quickly absorb and conduct the heat generated by the battery, effectively transferring the heat to the heat exchange flow channel 2 using the wick 4 and internal refrigerant, and removing the heat by the refrigerant. This efficient cooling design can significantly prolong the service life of the battery and improve the safety and reliability of the system. The capillary structure of the wick 4 enables efficient heat transfer between the heat exchange flow channel 2 and the inner heat exchange surface 6, reducing the temperature difference during cooling and improving the overall cooling efficiency of the battery pack.

[0045] The direct cooling plate described in this embodiment can effectively improve heat exchange efficiency, simplify cooling structure, and has good stability and durability. The serpentine heat exchange flow channel 2 in the plate body 1 ensures uniform flow of the refrigerant working fluid in the plate body 1, reducing the possibility of local overheating; the cooperation of the capillary structure of the wick 4 and the heat exchange flow channel 2 enables the refrigerant to achieve efficient transfer between the inner heat exchange surface 6 and the flow channel, ensuring the consistency and uniformity of the cooling effect. Compared with traditional structures, the wick 4 design in this refrigerant direct cooling plate can better adapt to the shape changes of the inner heat exchange surface 6, thereby improving the overall heat exchange performance and meeting the high-efficiency cooling demand. In long-term use, this structure exhibits excellent durability and is suitable for various working environments, including stable operation under complex conditions such as high temperature and high humidity.

[0046] In long-term applications, especially in high-strength and long-time working conditions of battery cooling systems, the refrigerant cold plate can ensure uniform flow of refrigerant and continuity of heat transfer through its unique wick 4 structure, thereby effectively reducing temperature fluctuations inside the battery and preventing battery aging problems caused by excessive local temperature. In addition, the structure of the cold plate can be customized according to different application requirements, such as by changing the cross-sectional shape of the flow channel or increasing the number of flow guide ports to adapt to different cooling capacity requirements. This flexible design makes the refrigerant cold plate have superior adaptability in cooling requirements in different fields.

[0047] In summary, those skilled in the art can understand and implement the cold plate structure and its working principle described above. The cooperation between the components enables the refrigerant working medium to fully utilize the synergy of the internal heat exchange surface 6 and the wick 4 during flow, achieving improved overall cooling effect and excellent performance in different actual application scenarios. In the battery cooling system, the cold plate not only maintains excellent cooling effect in high load and complex environment, but also has the advantages of simplifying system structure and reducing manufacturing cost, greatly improving the overall reliability and economy of the system. Embodiment

[0048] As shown in Figure 4 the difference between this embodiment and embodiment 1 is that the wick 4 is a split body structure, each split body is a reverse cap-shaped cross-section structure, and is clamped between the bottom plate 101 and the panel 102. The reverse cap-shaped cross-section design of each split body helps to enhance the stability of the wick, ensuring that it maintains a good fixed state between the bottom plate and the panel. Through this cross-sectional shape, the wick can adapt to the shape change of the plate body during installation, thereby achieving more uniform contact and stable heat exchange performance. The reverse cap-shaped cross-section design not only provides flexibility during installation, but also enhances the overall performance of the system during operation, enabling the wick to effectively respond to temperature and pressure changes and maintain sustained high-efficiency heat exchange capacity.

[0049] The reverse cap-shaped cross-section design enables the wick 4 to better contact the refrigerant working medium. Even if air locking occurs, the wick 4 can rely on the reverse cap-shaped cross-section structure to maintain contact with the refrigerant working medium, thereby achieving sustained heat exchange effect. Specifically, the reverse cap-shaped cross-section provides multiple contact points, enabling the heat exchange area between the wick and the working medium to be increased, thereby significantly improving heat exchange efficiency. Regardless of the flow state of the refrigerant, the wick 4 can always maintain close contact with the working medium through its cross-sectional shape, and this design feature enables it to achieve reliable heat transfer even when air locking or working medium flow is not smooth.

[0050] Each wick sub also provides good mechanical support through its inverted cap structure, ensuring stable structural strength under different working conditions. The clamping design between the wick sub and the bottom plate 101 and the face plate 102 ensures that the wick remains in place when the system is affected by external forces, preventing displacement due to vibration or pressure fluctuations. This mechanical support function is particularly important in high-load or complex working environments, ensuring long-term stable operation of the refrigerant direct cooling plate. Embodiment

[0051] As shown in Figure 5 , the difference between this embodiment and embodiment 1 is that at least part of the heat exchange channel 2 is provided with an inverted cap-shaped cross-section structure wick 4, the upper end surface of the wick 4 is in contact with the inner heat exchange surface 6, and the rest is kept a certain distance from the other surfaces of the heat exchange channel 2 to ensure the best realization of the heat exchange effect. The heat exchange channel 2 is also provided with protruding bosses 7 for fixing the wick 4. These fixing structures can effectively and stably keep the wick 4 in the predetermined position, preventing displacement or falling during flow.

[0052] The inverted cap-shaped cross-section structure of the wick 4 allows the upper end surface to be in close contact with the inner heat exchange surface 6, thereby achieving efficient heat transfer. The spacing design between the wick 4 and the other surfaces of the heat exchange channel 2 ensures that the refrigerant working medium can flow uniformly around the wick 4, thereby avoiding local flow obstruction or air blockage. At the same time, the setting of the bosses 7 not only provides mechanical support, but also plays a role in stabilizing the position of the wick 4, ensuring that it is always in the best heat exchange position during the flow of the refrigerant. Embodiment

[0053] As shown in Figure 6 , the difference between this embodiment and embodiment 1 is that the wick 4 is a flat plate structure, sandwiched between the bottom plate 101 and the face plate 102. The flat plate design of the wick 4 allows it to form a tight contact between the bottom plate 101 and the face plate 102, thereby achieving efficient heat transfer. This clamping structure ensures the stability of the wick 4 in the entire cooling system, effectively avoiding displacement or deviation caused by fluid pressure fluctuations or external forces.

[0054] The flat plate shape of the wick 4 has a large surface area, which can increase the contact area with the refrigerant working medium, thereby significantly improving the heat exchange efficiency. In addition, the tight clamping of the wick 4 between the bottom plate 101 and the face plate 102 allows it to fully utilize the capillary action to evenly distribute the refrigerant to the entire inner heat exchange surface, achieving continuous and stable heat transfer. Through this flat plate design, the wick 4 can better adapt to the structural changes of the system during heat exchange, ensuring the uniformity and stability of the heat exchange effect.

[0055] Another advantage of this structure is that the flat plate-like wick 4 is easy to install, which can improve efficiency and reduce production cost during manufacturing and assembly. The close clamping manner makes the wick 4 keep the position unchanged even if it is disturbed externally during operation, further enhancing the reliability and durability of the system.

[0056] While exemplary embodiments of the present disclosure have been described, it is to be understood that the exemplary embodiments of the present disclosure are susceptible to various modifications and alternative forms, and specific examples thereof are provided as terms of disclosure without limiting the present disclosure in spirit and scope. Accordingly, all modifications and alterations are included within the scope of the present disclosure as defined by the appended claims and equivalents thereof. The present disclosure is defined by the appended claims and equivalents thereof.

Claims

1. A refrigerant direct cooling plate with a suspended liquid wick, characterized in that: The direct cooling plate includes: a plate body and a liquid wick, wherein one side of the plate body is an external heat exchange surface, and a plurality of heat exchange channels for transporting refrigerant are provided in the plate body opposite to the heat exchange surface, and the side of the heat exchange channel facing the external heat exchange surface is an internal heat exchange surface; the liquid wick is at least partially in contact with the internal heat exchange surface and partially in the heat exchange channel, and the liquid wick has a capillary infusion structure for contacting with the internal heat exchange surface for heat exchange and transporting the refrigerant in the heat exchange channel inward for heat exchange.

2. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The plate body includes a bottom plate and a panel opposite to the bottom plate, wherein the bottom plate has a groove, and the cover plate seals the opening surface of the groove to form a heat exchange flow channel.

3. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The heat exchange channel is serpentine.

4. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The heat exchange channels are arranged in parallel.

5. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: Several guide ports are provided between adjacent heat exchange channels to connect the adjacent channels.

6. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The liquid absorbing core is in the shape of an integral plate and is sandwiched between the bottom plate and the top plate.

7. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The liquid absorbent core is a split structure, each split has an inverted hat-shaped cross-section structure and is sandwiched between the bottom plate and the panel.

8. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: At least part of the heat exchange channel is provided with a liquid absorbent core with an inverted hat-shaped cross-section structure, the upper end surface of the liquid absorbent core is connected to the inner heat exchange surface, and the rest is spaced from other surfaces of the heat exchange channel. Suitably, a boss or bracket for fixing the liquid absorbent core is provided in the heat exchange channel.

9. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The liquid absorbent core is an integrated wavy concave-convex plate and is arranged between the bottom plate and the top plate. The liquid absorbent core is provided with a bent protrusion extending into the heat exchange flow channel.

10. A refrigerant direct cooling plate with a suspended liquid wick as claimed in claim 1, characterized in that: The liquid absorbent core is an integral plate and is arranged between the bottom plate and the panel. The liquid absorbent core is provided with a bent protrusion extending into the heat exchange flow channel and a fin plate extending out of the heat exchange flow channel.

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