Liquid cooling plate with efficient heat dissipation

Abstract

The utility model relates to the technical field of liquid cooling plates, in particular to a liquid cooling plate with efficient heat dissipation. The converter comprises a plate body and a cooling flow channel arranged on the plate body, two ends of the cooling flow channel are respectively communicated with a first communication port and a second communication port of a converter shell, a liquid inlet pipe and a liquid outlet pipe are arranged on the converter shell, a piston plate capable of doing piston motion in an inner cavity of the converter shell is arranged in the converter shell, and the liquid inlet pipe is communicated with the liquid outlet pipe. A first pipeline set and a second pipeline set which are distributed side by side in the moving direction of the piston plate are arranged on the piston plate, and when the piston plate conducts piston movement, the first pipeline set or the second pipeline set moves to a working area, so that switching of the communicating states between the liquid inlet pipe and the first communicating opening and between the liquid outlet pipe and the second communicating opening is achieved. According to the utility model, the overall flow channel of the liquid cooling plate is optimized, so as to ensure that the liquid cooling plate realizes a more uniform heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling plates, in particular to a liquid cooling plate with high-efficiency heat dissipation. Background Art

[0002] Liquid cold plates are a highly efficient thermal management tool, commonly used in electronic devices such as computer chips or high-performance electronic products. They absorb and transfer heat by circulating coolant inside the metal plate, thereby effectively controlling the operating temperature of the device, maintaining its performance and extending its service life.

[0003] Most existing liquid cooling plate designs, as described in Chinese Patent Publication No. CN217483324U, are titled "Liquid Cooling Plate." These designs include a liquid inlet and a liquid outlet. Cooling liquid flows from the inlet into the medium flow channel within the liquid cooling plate, absorbing heat and gradually heating up as it flows, before being discharged through the outlet. In practice, this problem arises from the continuous heat absorption of the cooling liquid during its flow, gradually increasing its temperature. This results in higher temperatures in areas farther from the inlet, leading to uneven heat dissipation in the liquid cooling plate and affecting overall thermal management efficiency. This is an urgent issue to address. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a liquid cooling plate with high heat dissipation efficiency, and optimizes the overall flow channel of the liquid cooling plate to ensure that the liquid cooling plate achieves a more uniform heat dissipation effect.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A liquid cooling plate with high-efficiency heat dissipation includes a plate body and a cooling channel arranged on the plate body, the two ends of the cooling channel are respectively connected to the first connecting port and the second connecting port of a converter housing, the converter housing is provided with a liquid inlet pipe and a liquid discharge pipe, the converter housing is provided with a piston plate that can perform piston movement in the inner cavity of the converter housing, the piston plate is provided with a first pipe group and a second pipe group distributed side by side along the movement direction of the piston plate, when the piston plate performs piston movement, the first pipe group or the second pipe group is moved to the working area respectively to realize the switching of the connection state between the liquid inlet pipe and the liquid discharge pipe and the first connecting port and the second connecting port.

[0007] As a further solution of the present invention: the liquid inlet pipe and the liquid discharge pipe are both located at the top of the converter housing, the first connecting port and the second connecting port are both located at the bottom of the converter housing, and the liquid inlet pipe and the first connecting port are located on the same plumb line, the liquid discharge pipe and the second connecting port are located on the same plumb line, and the piston plate performs horizontal piston movement; wherein, the first pipe group is composed of a first straight pipe and a second straight pipe distributed vertically, and when the first pipe group is located in the working area, the two ends of the first straight pipe are respectively connected to the liquid inlet pipe and the first connecting port, and the two ends of the second straight pipe are respectively connected to the liquid discharge pipe and the second connecting port; the second pipe group is composed of a first inclined pipe and a second inclined pipe distributed in an X shape and not connected to each other, and when the second pipe group is located in the working area, the two ends of the first inclined pipe are respectively connected to the liquid inlet pipe and the second connecting port, and the two ends of the second inclined pipe are respectively connected to the liquid discharge pipe and the first connecting port.

[0008] As a further solution of the present invention: an adjusting rod is fixed to the side wall of the piston plate, the axis of the adjusting rod is distributed along the movement direction of the piston plate, the adjusting rod passes through the side wall of the converter housing, and pressure relief holes are provided on the converter housing for the piston plate piston movement process chamber and return chamber.

[0009] As a further solution of the present invention: the adjusting rod is reciprocatingly driven along the axis of the adjusting rod by a linear drive mechanism.

[0010] As a further solution of the present invention: the cooling channels are arranged into several groups distributed side by side, and the two ends of the several groups of cooling channels respectively converge at one end of the first end converging channel and the second end converging channel, and the other ends of the first end converging channel and the second end converging channel are respectively connected to the first connecting port and the second connecting port.

[0011] As a further solution of the present invention: the cooling channel is a linear structure.

[0012] As a further solution of the present invention: the first end converging flow channel and the second end converging flow channel, as well as the first connecting port and the second connecting port are symmetrically distributed along the middle cross section of the cooling flow channel.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The piston plate performs piston movement to move the first pipe group or the second pipe group to the working area respectively, that is, the connection state between the liquid inlet pipe and the liquid discharge pipe and the first connecting port and the second connecting port is switched, so that the liquid inlet end and the liquid discharge end of the cooling channel are alternately switched; it prevents the cooling medium from always entering the cooling channel from one end of the cooling channel, which causes the heat dissipation effect at both ends of the cooling channel to be uneven, and effectively improves the uniformity of the heat dissipation effect of the liquid cold plate.

[0015] 2. Both the inlet and outlet pipes are located at the top of the converter housing, while the first and second communication ports are located at the bottom of the converter housing, facilitating pipe routing. In practice, by minimizing the distance between the top and bottom of the converter housing, the coolant flow path during connection between the inlet and outlet pipes and the first or second communication ports, as well as between the inlet and outlet pipes, can be reduced. This reduces the amount of coolant remaining in the first and second pipe groups during the sliding and switching of the piston plate, thereby minimizing the impact on the cooling effect of the liquid cold plate.

[0016] 3. The adjusting rod is driven to move back and forth by the linear drive mechanism, thereby realizing the reciprocating drive of the piston plate and realizing the automatic switching of the sliding position of the piston plate.

[0017] 4. The cooling channels are arranged into several groups distributed side by side, thereby ensuring the cooling coverage area of the cooling channels; in addition, the two ends of the several groups of cooling channels converge at one end of the first end converging channel and the second end converging channel, and the other ends of the first end converging channel and the second end converging channel are respectively connected to the first connecting port and the second connecting port; thus, under the premise of ensuring the cooling coverage area, the flow path of the cooling medium in the cooling channel is relatively short, so that the cooling medium can pass through the cooling channel quickly, further improving the uniformity of the overall cooling of the liquid cold plate.

[0018] 5. The first end converging flow channel and the second end converging flow channel, as well as the first connecting port and the second connecting port, are symmetrically distributed along the middle cross-section of the cooling flow channel. Therefore, in actual use, when the first connecting port or the second connecting port is used as the liquid inlet, the cooling medium flows into the cooling flow channel with the same stroke, ensuring that the temperature of the cooling medium entering the two ends of the cooling flow channel is consistent, and further ensuring the uniformity of the cooling at both ends of the cooling flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 This is a schematic structural diagram of the converter housing in the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the converter housing in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the piston plate in the utility model.

[0023] In the figure: 10, plate body; 11, cooling flow channel; 111, first end converging flow channel; 112, second end converging flow channel; 20, converter housing; 21, liquid inlet pipe; 22, liquid discharge pipe; 23, adjusting rod; 24, first connecting port; 25, second connecting port; 26, piston plate; 261, first pipe group; 261a, first straight pipe; 261b, second straight pipe; 262, second pipe group; 262a, first oblique pipe; 262b, second oblique pipe; 27, pressure relief hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] For ease of understanding, the specific structure and working mode of the present invention are further described below with reference to the accompanying drawings:

[0026] The specific structure of the utility model refers to Figure 1-4As shown, its main structure includes a plate body 10, a cooling channel 11 disposed on the plate body 10, and a converter structure for switching the flow direction of the medium within the cooling channel 11. The converter structure includes a converter housing 20. The cooling channel 11 is connected to a first communication port 24 and a second communication port 25 of the converter housing 20 at both ends. The converter housing 20 is provided with a liquid inlet pipe 21 and a liquid outlet pipe 22. Furthermore, a switching assembly is disposed within the converter housing 20. This switching assembly has two modes: reverse flow and forward flow. When the switching assembly is in the reverse flow mode, the liquid inlet pipe 21 and the liquid outlet pipe 22 are connected to the first communication port 24 and the second communication port 25, respectively. The liquid inlet pipe 21 delivers the cooling medium to the first communication port 24. The cooling medium enters the cooling channel 11 from the first communication port 24, flows in the opposite direction within the cooling channel 11 to the second communication port 25, and is then delivered to the liquid outlet pipe 22 through the second communication port 25 before being discharged. When the switching assembly is in the medium forward flow state, the liquid inlet pipe 21 and the liquid outlet pipe 22 are connected to the second connecting port 25 and the first connecting port 24 respectively. The cooling medium is transported to the second connecting port 25 by the liquid inlet pipe 21. The cooling medium enters the cooling channel 11 through the second connecting port 25 and flows forward in the cooling channel 11 to the first connecting port 24. The cooling medium is then transported to the liquid outlet pipe 22 through the first connecting port 24 and then discharged outward. During use, by alternately switching the switching assembly to the medium reverse flow state and the medium forward flow state, the medium can enter the cooling channel 11 from both ends of the cooling channel 11, thereby changing the flow direction of the medium in the cooling channel 11 and preventing the cooling medium from always entering the cooling channel 11 from one end of the cooling channel 11, which would cause uneven heat dissipation at both ends of the cooling channel 11. This effectively improves the uniformity of the heat dissipation effect of the liquid cold plate.

[0027] Specifically, such as Figure 3 and Figure 4As shown, the switching assembly includes a piston plate 26 that can perform piston motion within the inner cavity of the converter housing 20. The piston plate 26 is provided with a first pipe group 261 and a second pipe group 262, which are arranged side by side along the direction of movement of the piston plate 26. When the piston plate 26 performs piston motion, the first pipe group 261 or the second pipe group 262 is moved to the working area, respectively, to achieve switching of the switching assembly between a medium counterflow state and a medium forward flow state, that is, to achieve switching of the communication state between the liquid inlet pipe 21 and the liquid discharge pipe 22 and the first communication port 24 and the second communication port 25. By adopting the arrangement of two pipe groups, the first pipe group 261 and the second pipe group 262, and by sliding the piston plate 26, the first pipe group 261 and the second pipe group 262 can be moved to the working area, respectively, to achieve switching between the medium counterflow state and the medium forward flow state, and the switching process is convenient and quick. Of course, in specific implementation, the switching component can also be controlled by a pipeline in conjunction with a valve, such as: the liquid inlet pipe 21 is connected to the first connecting port 24 and the second connecting port 25 respectively through two groups of branch pipes, and a control valve is installed on the liquid inlet pipe 21, and the control valve controls the liquid inlet pipe 21 to connect the first connecting port 24 and the second connecting port 25 respectively; the discharge pipe 22 is the same as the liquid inlet pipe 21; by synchronous switching of the control valves on the liquid inlet pipe 21 and the discharge pipe 22, the switching between the medium counterflow state and the medium forward flow state of the switching component is realized; but obviously, this embodiment requires the coordination between the two control valves, which is not only inconvenient to operate, but also prone to coordination errors of the two control valves, resulting in unstable operation of the liquid cooling plate.

[0028] Further, such as Figure 3 and Figure 4As shown, the arrangement of the first pipe group 261 and the second pipe group 262 is further described here. Specifically, the liquid inlet pipe 21 and the liquid outlet pipe 22 are both located at the top of the converter housing 20, and the first communication port 24 and the second communication port 25 are both located at the bottom of the converter housing 20. The liquid inlet pipe 21 and the first communication port 24 are located on the same vertical line, and the liquid outlet pipe 22 and the second communication port 25 are located on the same vertical line. The piston plate 26 performs horizontal piston motion. Among them, the first pipe group 261 is composed of a first straight pipe 261a and a second straight pipe 261b distributed vertically. When the first pipe group 261 is located in the working area, the two ends of the first straight pipe 261a are respectively connected to the liquid inlet pipe 21 and the first connecting port 24, and the two ends of the second straight pipe 261b are respectively connected to the discharge pipe 22 and the second connecting port 25; the second pipe group 262 is composed of a first inclined pipe 262a and a second inclined pipe 262b distributed in an X shape and not connected to each other. When the second pipe group 262 is located in the working area, the two ends of the first inclined pipe 262a are respectively connected to the liquid inlet pipe 21 and the second connecting port 25, and the two ends of the second inclined pipe 262b are respectively connected to the discharge pipe 22 and the first connecting port 24. Since both the inlet pipe 21 and the outlet pipe 22 are located at the top of the converter housing 20, and the first communication port 24 and the second communication port 25 are located at the bottom of the converter housing 20, not only does this facilitate pipe routing, but in practice, by minimizing the distance between the top and bottom of the converter housing 20, the flow distance of the cooling medium during communication between the inlet pipe 21 and the first or second communication port 24, 25, and between the outlet pipe 22 and the first or second communication port 24, 25, can be reduced. This reduces the amount of cooling medium remaining in the first and second pipe groups 261, 262 during switching of the switching assembly, thereby minimizing the impact on the cooling effect of the liquid cooling plate. In this embodiment, the top and bottom of the converter housing 20 are described to facilitate understanding of the technical solution. In practice, the inlet pipe 21 and the outlet pipe 22 can be fixed to one surface of the converter housing 20, and the first and second communication ports 24, 25 can be fixed to the opposite surface. Of course, the above-mentioned arrangement of the first pipe group 261 and the second pipe group 262 is a preferred embodiment. In actual implementation, the liquid inlet pipe 21, the liquid discharge pipe 22, the first connecting port 24 and the second connecting port 25 can be distributed simultaneously on any plate surface of the converter housing 20. The first pipe group 261 and the second pipe group 262 are both set as two U-shaped connecting branches, which can also achieve the technical effect required by this application. However, it is obvious that in this embodiment, the cooling medium is larger in the first pipe group 261 and the second pipe group 262.

[0029] To achieve the piston movement of the piston plate 26, as Figure 3As shown, an adjusting rod 23 is fixed to the side wall of the piston plate 26. The axis of the adjusting rod 23 is distributed along the movement direction of the piston plate 26. The adjusting rod 23 passes through the side wall of the converter housing 20, and pressure relief holes 27 are provided in the process chamber and return chamber of the converter housing 20 for the piston plate 26 piston movement. Preferably, pressure relief holes 27 are provided on both side walls of the converter housing 20 located on the extension line of the piston plate 26 piston movement trajectory. By manipulating the adjusting rod 23 along the axial direction of the adjusting rod 23, the adjusting rod 23 can be caused to perform piston movement within the converter housing 20. During the movement of the piston plate 26, the pressure in the inner cavity of the converter housing 20 is relieved through the pressure relief holes 27 to ensure that the piston plate 26 achieves stable piston movement. In this embodiment, the piston plate 26 can be manually driven or driven to reciprocate by a linear drive mechanism such as a cylinder, a screw-slider mechanism, etc., which has high flexibility. Of course, in actual implementation, the two side walls of the converter housing 20 located on the extension of the piston plate 26's piston motion trajectory can utilize an elastic sealing structure, such as an airbag, to completely seal the piston plate 26 within the converter housing 20. The linear drive mechanism can then be installed within the converter housing 20, thereby enhancing the sealing within the converter housing 20. In this embodiment, there is no need to provide a pressure relief hole 27. During the forward and return strokes of the piston plate 26, the deformation of the airbag provides gas-receiving space for the forward and return stroke cavities of the piston plate 26 within the converter housing 20.

[0030] On the basis of the above, if Figure 1 As shown, the cooling channels 11 are arranged in a plurality of groups arranged side by side, thereby ensuring the cooling coverage area of the cooling channels 11. In actual implementation, the cooling channels 11 may adopt a wavy structure, an M-shaped structure, etc., but in order to facilitate the rapid passage of the cooling medium through the cooling channels 11, it is preferred that the cooling channels 11 be a linear structure. In addition, the two ends of the plurality of groups of cooling channels 11 converge at one end of the first end converging channel 111 and the second end converging channel 112, respectively, and the other ends of the first end converging channel 111 and the second end converging channel 112 are respectively connected to the first connecting port 24 and the second connecting port 25. Thus, while ensuring the cooling coverage area, the flow path of the cooling medium in the cooling channels 11 is relatively short, so that the cooling medium can quickly pass through the cooling channels 11, further improving the uniformity of the overall cooling of the liquid cold plate.

[0031] In addition, if Figure 1As shown, the first end converging channel 111 and the second end converging channel 112, as well as the first connecting port 24 and the second connecting port 25 are symmetrically distributed with each other along the middle cross-section of the cooling channel 11. Therefore, in actual use, when the first connecting port 24 or the second connecting port 25 is used as the liquid inlet, the cooling medium flows into the cooling channel 11 with the same stroke, ensuring that the temperature of the cooling medium entering the two ends of the cooling channel 11 is consistent, and further ensuring the uniformity of the cooling at both ends of the cooling channel 11.

[0032] Of course, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but also encompasses the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that fall within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0034] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. A liquid cooling plate with high heat dissipation efficiency, characterized in that: The invention comprises a plate body (10) and a cooling channel (11) arranged on the plate body (10), wherein two ends of the cooling channel (11) are respectively connected to a first communication port (24) and a second communication port (25) of a converter housing (20), wherein the converter housing (20) is provided with a liquid inlet pipe (21) and a liquid outlet pipe (22), wherein a piston plate (26) capable of performing piston movement in the inner cavity of the converter housing (20) is provided in the converter housing (20), wherein a first pipe group (261) and a second pipe group (262) are arranged on the piston plate (26) and are distributed side by side along the movement direction of the piston plate (26), and wherein when the piston plate (26) performs piston movement, the first pipe group (261) or the second pipe group (262) is respectively moved to the working area to realize the switching of the communication state between the liquid inlet pipe (21) and the liquid outlet pipe (22) and the first communication port (24) and the second communication port (25).

2. The liquid cooling plate with high heat dissipation efficiency according to claim 1, characterized in that: The liquid inlet pipe (21) and the liquid discharge pipe (22) are both located at the top of the converter housing (20), the first communication port (24) and the second communication port (25) are both located at the bottom of the converter housing (20), and the liquid inlet pipe (21) and the first communication port (24) are located on the same vertical line, the liquid discharge pipe (22) and the second communication port (25) are located on the same vertical line, and the piston plate (26) performs horizontal piston movement; wherein, the first pipe group (261) is composed of a first straight pipe (261a) and a second straight pipe (261b) distributed vertically, and when the first pipe group (261) is located in the working area, the first The two ends of the straight tube (261a) are respectively connected to the liquid inlet tube (21) and the first communication port (24), and the two ends of the second straight tube (261b) are respectively connected to the liquid discharge tube (22) and the second communication port (25); the second pipe group (262) is composed of a first oblique tube (262a) and a second oblique tube (262b) that are distributed in an X shape and are not connected to each other. When the second pipe group (262) is located in the working area, the two ends of the first oblique tube (262a) are respectively connected to the liquid inlet tube (21) and the second communication port (25), and the two ends of the second oblique tube (262b) are respectively connected to the liquid discharge tube (22) and the first communication port (24).

3. The liquid cooling plate with high heat dissipation efficiency according to claim 2, characterized in that: An adjusting rod (23) is fixed to the side wall of the piston plate (26), and the axis of the adjusting rod (23) is distributed along the movement direction of the piston plate (26). The adjusting rod (23) passes through the side wall of the converter housing (20), and pressure relief holes (27) are provided on the converter housing (20) for the piston plate (26) piston movement process cavity and return cavity.

4. The liquid cooling plate with high heat dissipation efficiency according to claim 3, characterized in that: The regulating rod (23) is driven reciprocatingly along the axis of the regulating rod (23) by a linear driving mechanism.

5. The liquid cooling plate with high heat dissipation efficiency according to any one of claims 1 to 4, characterized in that: The cooling channels (11) are arranged into a plurality of groups distributed side by side, and the two ends of the plurality of groups of cooling channels (11) converge at one end of the first end converging channel (111) and the second end converging channel (112), respectively, and the other ends of the first end converging channel (111) and the second end converging channel (112) are respectively communicated with the first communication port (24) and the second communication port (25).

6. The liquid cooling plate with high heat dissipation efficiency according to claim 5, characterized in that: The cooling channel (11) is a linear structure.

7. The liquid cooling plate with high heat dissipation efficiency according to claim 6, characterized in that: The first end converging flow channel (111) and the second end converging flow channel (112), as well as the first connecting port (24) and the second connecting port (25), are symmetrically distributed along the middle cross section of the cooling flow channel (11).

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