Side-in and side-out micro-channel N-type flowing liquid cooling device

Abstract

The invention discloses a side-in side-out micro-channel N-type flowing liquid cooling device, which comprises a top cover and a bottom plate, a left flow guide plate, a right flow guide plate and a liquid inlet hole are arranged on one side in the top cover, a backflow plate and a liquid outlet hole are arranged on the other side of the top cover, the periphery of the top cover is connected with the periphery of the bottom plate, and a form relieved tooth set is arranged in the middle of the bottom plate and located among the left flow guide plate, the right flow guide plate and the backflow plate. A refrigerant working medium firstly flows into the left flow guide plate and the right flow guide plate along the liquid inlet hole, then flows into the central part of the form relieved tooth group, then flows reversely in the backflow plate, then flows into the two side parts of the form relieved tooth group, and then flows towards the liquid outlet hole; a refrigerant working medium flows through the relieving teeth twice, so that the contact time of the refrigerant working medium and the relieving teeth is long; the low-temperature refrigerant working medium can directly scour the shovel teeth at the central part with the highest temperature, so that the cooling effect is better. Therefore, according to the design, the contact time of the refrigerant working medium and the shovel teeth is long, and the cooling effect is good.

Description

Technical Field

[0001] The invention relates to a liquid cooling device, belonging to the technical field of chip cooling, and in particular to a side-inlet and side-outlet microchannel N-type flow liquid cooling device. Background Art

[0002] When the chip is working, the current flowing in the semiconductor will generate resistance, thereby generating a large amount of heat; as the chip computing power increases, the chip's power consumption and heat generation also increase. If this heat cannot be dissipated in time, it will easily cause the chip temperature to rise, thereby affecting the chip's performance and stability.

[0003] A Chinese patent application with application number 202410732601.5 and application date June 7, 2024 discloses a novel high-power liquid-cooled phase-change radiator and a manufacturing method thereof, wherein the novel high-power liquid-cooled phase-change radiator comprises an evaporation end and a condensation end, wherein the evaporation end comprises an evaporation condensation plate, a lower shell and a liquid injection port, wherein the lower side of the evaporation condensation plate is fixedly connected to the lower shell to form an evaporation chamber, wherein the condensation end comprises an upper shell and an evaporation condensation plate, wherein the upper side of the evaporation condensation plate is fixedly connected to the upper shell to form a condensation chamber, wherein the heat dissipation mechanism comprises at least one tooth plate heat dissipation area and at least one columnar heat dissipation area. Although the design diffuses the heat on the chip to the condensation end, the heat dissipation on the chip is achieved by combining the heat dissipation mechanism with liquid flow heat dissipation at the condensation end, but the following defects are still present: In this design, the refrigerant flows along the shovel teeth in the heat dissipation area of ​​the tooth plate to remove the heat from the shovel teeth, but the contact time between the refrigerant and the shovel teeth is short, so the refrigerant has a poor heat dissipation effect on the shovel teeth, which leads to a poor heat dissipation effect on the chip.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the contact time between the refrigerant and the shovel teeth is short and the cooling effect is poor, and to provide a side-inlet and side-outlet microchannel N-type flow liquid cooling device with a longer contact time between the refrigerant and the shovel teeth and a better cooling effect.

[0006] To achieve the above objectives, the technical solution of the present invention is: A side-inlet and side-outlet microchannel N-type flow liquid cooling device, the device comprising a top cover and a bottom plate; The middle part of the top cover is a guide cavity, a left guide plate and a right guide plate are arranged on one side of the guide cavity, the left guide plate and the right guide plate are arranged opposite to each other, a liquid inlet hole is arranged at a position of the guide cavity between the left guide plate and the right guide plate, one end of the liquid inlet hole is connected with the outside after passing through the top cover; a return plate is arranged on the other side of the guide cavity, the return plate includes a left return wall, a middle return wall and a right return wall, one end of the left return wall away from the liquid inlet hole is vertically connected with one end of the middle return wall, the other end of the middle return wall is vertically connected with one end of the right return wall away from the liquid inlet hole, a liquid outlet hole is arranged on one end of the guide cavity close to the middle return wall, one end of the liquid outlet hole is connected with the outside after passing through the top cover; The four sides of the top cover are connected to the four sides of the bottom plate, and a shovel tooth group is arranged in the middle of the bottom plate. One end of the shovel tooth group is connected to one end of the left guide plate, one end of the shovel tooth group is connected to one end of the right guide plate, and the other end of the shovel tooth group is connected to one end of the left return wall and the right return wall.

[0007] The shovel tooth group includes a plurality of shovel teeth, and a flow channel is formed between two adjacent shovel teeth, and the flow channel is parallel to the left guide plate.

[0008] The distance between the left return wall and the right return wall is greater than twice the distance between the left guide plate and the right guide plate.

[0009] The vertical distance between the left return wall and the left guide plate is greater than half of the distance between the left guide plate and the right guide plate; the vertical distance between the right return wall and the right guide plate is greater than half of the distance between the right guide plate and the left guide plate.

[0010] One end of the guide cavity close to the liquid outlet is an outlet guide cavity, and the outlet guide cavity includes an outlet guide left wall and an outlet guide right wall. The angle between the outlet guide left wall and the outlet guide right wall is less than one hundred and eighty degrees, and the liquid outlet is between the outlet guide left wall and the outlet guide right wall.

[0011] One end of the guide cavity close to the liquid inlet hole is a return guide cavity, and the return guide cavity includes a return guide left wall and a return guide right wall. The angle between the return guide left wall and the return guide right wall is less than one hundred and eighty degrees, and the liquid inlet hole is between the return guide left wall and the return guide right wall.

[0012] A positioning plate is arranged on the bottom plate, one end of the positioning plate is connected to the bottom of the outgoing guide left wall and the outgoing guide right wall, and the other end of the positioning plate is connected to the bottom of the return guide left wall and the return guide right wall.

[0013] The end of the left guide plate close to the shovel tooth group is triangular, the end of the right guide plate close to the shovel tooth group is triangular, the end of the left return wall close to the shovel tooth group is triangular, and the end of the right return wall close to the shovel tooth group is triangular.

[0014] The length of the shovel tooth group is 43.17 mm, the width of the shovel tooth group is 53.55 mm, and the height of the shovel tooth group is 3 to 6 mm.

[0015] The distance between the left guide plate and the right guide plate is 15.6 mm or 29.45 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a side-inlet and side-outlet microchannel N-type flow liquid cooling device of the present invention, the device comprises a top cover and a bottom plate, the middle part of the top cover is a guide cavity, one side of the guide cavity is provided with a left guide plate, a right guide plate and a liquid inlet hole, the other side of the guide cavity is provided with a return plate and a liquid outlet hole, a shovel tooth group is provided on the bottom plate, the shovel tooth group is located between the left guide plate, the right guide plate and the return plate, the shovel tooth group comprises a plurality of shovel teeth, when used, the chip is first fixed to the bottom of the bottom plate, and then the refrigerant enters the guide cavity along the liquid inlet hole, the refrigerant then flows into the shovel tooth group from between the left guide plate and the right guide plate, and then the refrigerant flows into the return plate, and then the return plate makes the refrigerant flow to the shovel tooth group, and then the refrigerant flows along the shovel tooth group to the outside of the left guide plate and the right guide plate, and then the refrigerant flows along the side wall of the guide cavity to the liquid outlet hole, and then the refrigerant flows out from the liquid outlet hole, the advantages of the present invention also include: First point: the refrigerant first flows toward the shovel tooth group under the action of the left guide plate and the right guide plate, and then the return plate makes the refrigerant flow toward the shovel tooth group, that is, the refrigerant flows along the shovel tooth group twice, so the contact time between the refrigerant and the shovel tooth group is longer, and the refrigerant can fully absorb the heat of the shovel tooth group, so the cooling effect on the shovel tooth group is better, thereby realizing the cooling of the bottom plate, and then the bottom plate cools the chip, so the cooling effect on the chip is better; Second point: The center of the bottom plate is connected to the chip, so the temperature at the center of the bottom plate is the highest. The refrigerant moves to the center of the bottom plate under the action of the left guide plate and the right guide plate, so the low-temperature refrigerant can directly flush the shovel teeth at the center of the bottom plate with a higher temperature. Therefore, the cooling effect on the shovel teeth at the center of the bottom plate is better, and the cooling effect on the chip is better; the refrigerant with a slightly increased temperature is then made to contact the shovel teeth on both sides by the return plate to achieve a uniform temperature effect on the shovel tooth group; Third point: The refrigerant flows twice along the shovel tooth group through the left guide plate, the right guide plate and the return plate, and no external power mechanism is required to make the refrigerant flow twice along the shovel tooth group, so the energy consumption of this device is low; Therefore, the contact time between the refrigerant and the shovel teeth of the present invention is longer, and the cooling effect is better.

[0017] 2. In a side-inlet and side-outlet microchannel N-type flow liquid cooling device of the present invention, the vertical distance between the left return wall and the left guide plate is greater than half of the distance between the left guide plate and the right guide plate, and the vertical distance between the right return wall and the right guide plate is greater than half of the distance between the right guide plate and the left guide plate. When used, under the action of the return plate, half of the refrigerant flows to the left shovel teeth, and the other half flows to the right shovel teeth. The vertical distances between the left return wall, the right return wall and the left guide plate and the right guide plate are greater than half of the distance between the right guide plate and the left guide plate, so that the refrigerant has enough space for movement in the return plate to ensure that the refrigerant can flow to the shovel teeth for the second time. Therefore, the flow effect of the refrigerant of the present invention is better.

[0018] 3. In a side-inlet and side-outlet microchannel N-type flow liquid cooling device of the present invention, one side of the guide cavity is an outlet guide cavity, and the cross section of the outlet guide cavity is triangular, and the other side of the guide cavity is a return guide cavity, and the return guide cavity is triangular. When used, after the refrigerant flows out of the shovel tooth group, it moves toward the direction of the outlet guide cavity under the action of the return guide cavity, and then the refrigerant moves toward the liquid outlet under the action of the outlet guide cavity, forming a guide for the refrigerant so that the refrigerant can flow out of the device smoothly. Therefore, the present invention has a better guiding effect on the refrigerant.

[0019] 4. In a side-inlet and side-outlet microchannel N-type flow liquid cooling device of the present invention, the left guide plate, the right guide plate, the left return wall, and the right return wall are triangular at one end close to the shovel tooth group. When used, the triangular shape can reduce the contact area between the left guide plate, the right guide plate, the left return wall, and the right return wall and the shovel teeth, and prevent the left guide plate, the right guide plate, the left return wall, and the right return wall from blocking the shovel teeth, so that the refrigerant can contact all the shovel teeth to cool down all the shovel teeth. Therefore, the parts of the present invention have good compatibility.

[0020] 5. In a side-inlet and side-outlet microchannel N-type flow liquid cooling device of the present invention, the length of the shovel tooth group is 43.17 mm, the width is 53.55 mm, the height is 3 to 6 mm, and the distance between the left guide plate and the right guide plate is 15.6 mm or 29.45 mm. When used, the cooling effect of the shovel tooth group of this size is better. When the distance between the left guide plate and the right guide plate is 15.6 mm, the refrigerant working medium that has just entered the guide cavity can be concentrated to flush the shovel teeth with the highest temperature to achieve the best cooling effect. Therefore, the cooling effect of the present invention is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 yes Figure 1 Left view of .

[0023] Figure 3 yes Figure 1 sectional view of .

[0024] Figure 4 It is a schematic diagram of the flow of refrigerant.

[0025] Figure 5 yes Figure 4 Top view of the .

[0026] Figure 6 yes Figure 1 Schematic diagram of the structure of the middle top cover.

[0027] Figure 7 yes Figure 6 Schematic diagram of the structure of the middle return plate.

[0028] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle left guide plate.

[0029] Fig. 9 yes Figure 1 Schematic diagram of the structure of the midsole plate.

[0030] Fig.10 yes Fig. 9 Left view of .

[0031] Fig.11 yes Fig. 9 Schematic diagram of the structure of the positioning plate.

[0032] Fig.12 yes Fig.11 Schematic diagram of the structure of the middle shovel teeth.

[0033] Fig.13 It is a temperature field cloud diagram in a top-down state when the present invention is applied.

[0034] Fig.14 It is a temperature field cloud diagram in an upward-looking state when the present invention is used.

[0035] Fig.15 It is a temperature field cloud diagram of the chip shell temperature of the present invention.

[0036] Fig.16 It is a cloud diagram of the temperature field of the skiving teeth in a top view when the present invention is applied.

[0037] Fig.17 It is a cloud diagram of the temperature field of the skiving teeth when looking up when the present invention is used.

[0038] Fig.18 It is a cloud diagram of the temperature field of the refrigerant working medium when the present invention is applied in an upward-looking state.

[0039] Fig.19 It is a cloud diagram of the temperature field of the refrigerant working medium in a top-down state when the present invention is applied.

[0040] Fig. 20 It is a refrigerant working medium pressure cloud diagram when the present invention is applied.

[0041] Fig.21 It is a pressure cloud diagram of the liquid inlet when the present invention is applied.

[0042] Fig. 22 It is a pressure cloud diagram of the liquid outlet when the present invention is applied.

[0043] Fig.23 It is a cloud diagram of the velocity field of the refrigerant working medium when the present invention is applied.

[0044] Fig.24 It is a velocity field cloud diagram of the refrigerant medium with a velocity higher than the average flow velocity when the present invention is applied.

[0045] In the figure: top cover 1, guide cavity 11, liquid inlet hole 12, liquid outlet hole 13, outlet guide cavity 14, outlet guide left wall 141, outlet guide right wall 142, return guide cavity 15, return guide left wall 151, return guide right wall 152, bottom plate 2, positioning plate 21, left guide plate 3, right guide plate 31, return plate 4, left return wall 41, middle return wall 42, right return wall 43, shovel tooth group 5, shovel tooth 51, flow channel 52, thermal grease 6, and refrigerant medium 7. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] See also Figure 1 — Fig.24 , a side-inlet and side-outlet microchannel N-type flow liquid cooling device, the device comprises a top cover 1 and a bottom plate 2; The middle part of the top cover 1 is a guide chamber 11, and a left guide plate 3 and a right guide plate 31 are arranged on one side of the guide chamber 11, and the left guide plate 3 and the right guide plate 31 are arranged opposite to each other. The guide chamber 11 is provided with a liquid inlet hole 12 at a position between the left guide plate 3 and the right guide plate 31, and one end of the liquid inlet hole 12 is connected to the outside after passing through the top cover 1; a return plate 4 is arranged on the other side of the guide chamber 11, and the return plate 4 includes a left return wall 41, a middle return wall 42 and a right return wall 43, and the end of the left return wall 41 away from the liquid inlet hole 12 is vertically connected to one end of the middle return wall 42, and the other end of the middle return wall 42 is vertically connected to one end of the right return wall 43 away from the liquid inlet hole 12, and a liquid outlet hole 13 is arranged on the end of the guide chamber 11 close to the middle return wall 42, and one end of the liquid outlet hole 13 is connected to the outside after passing through the top cover 1; The four sides of the top cover 1 are connected to the four sides of the bottom plate 2, and a shovel tooth group 5 is provided in the middle of the bottom plate 2. One end of the shovel tooth group 5 is connected to one end of the left guide plate 3, one end of the shovel tooth group 5 is connected to one end of the right guide plate 31, and the other end of the shovel tooth group 5 is connected to one end of the left return wall 41 and the right return wall 43.

[0048] The shovel tooth group 5 includes a plurality of shovel teeth 51 , and a flow channel 52 is formed between two adjacent shovel teeth 51 . The flow channel 52 is parallel to the left guide plate 3 .

[0049] The distance between the left return wall 41 and the right return wall 43 is greater than twice the distance between the left guide plate 3 and the right guide plate 31 .

[0050] The vertical distance between the left return wall 41 and the left guide plate 3 is greater than half of the distance between the left guide plate 3 and the right guide plate 31; the vertical distance between the right return wall 43 and the right guide plate 31 is greater than half of the distance between the right guide plate 31 and the left guide plate 3.

[0051] One end of the guide cavity 11 close to the liquid outlet hole 13 is an outlet guide cavity 14, and the outlet guide cavity 14 includes an outlet guide left wall 141 and an outlet guide right wall 142. The angle between the outlet guide left wall 141 and the outlet guide right wall 142 is less than one hundred and eighty degrees, and the liquid outlet hole 13 is between the outlet guide left wall 141 and the outlet guide right wall 142.

[0052] One end of the guide cavity 11 close to the liquid inlet hole 12 is a return guide cavity 15, and the return guide cavity 15 includes a return guide left wall 151 and a return guide right wall 152. The angle between the return guide left wall 151 and the return guide right wall 152 is less than one hundred and eighty degrees, and the liquid inlet hole 12 is between the return guide left wall 151 and the return guide right wall 152.

[0053] A positioning plate 21 is provided on the bottom plate 2 , one end of the positioning plate 21 is connected to the bottom of the outgoing guide left wall 141 and the outgoing guide right wall 142 , and the other end of the positioning plate 21 is connected to the bottom of the return guide left wall 151 and the return guide right wall 152 .

[0054] The end of the left guide plate 3 close to the shovel tooth group 5 is triangular, the end of the right guide plate 31 close to the shovel tooth group 5 is triangular, the end of the left return wall 41 close to the shovel tooth group 5 is triangular, and the end of the right return wall 43 close to the shovel tooth group 5 is triangular.

[0055] The length of the shovel tooth group 5 is 43.17 mm, the width of the shovel tooth group 5 is 53.55 mm, and the height of the shovel tooth group 5 is 3 to 6 mm.

[0056] The distance between the left guide plate 3 and the right guide plate 31 is 15.6 mm or 29.45 mm.

[0057] The supplementary description of the present invention is as follows: The actual use requirement of the present invention is to stabilize the shell temperature of a power chip of less than or equal to 800 watts at 70 to 86 degrees Celsius.

[0058] The refrigerant medium 7 of the present invention is 25% propylene glycol or 25% ethylene glycol, and its flow rate is 0.5 to 2.5 liters per minute.

[0059] Embodiment 1: See also Figure 1 — Fig.24 A side-inlet and side-outlet microchannel N-type flow liquid cooling device, the device includes a top cover 1 and a bottom plate 2; the middle part of the top cover 1 is a guide cavity 11, one side of the guide cavity 11 is provided with a left guide plate 3 and a right guide plate 31, the left guide plate 3 and the right guide plate 31 are arranged opposite to each other, the guide cavity 11 is provided with a liquid inlet hole 12 at a position between the left guide plate 3 and the right guide plate 31, one end of the liquid inlet hole 12 passes through the top cover 1 and communicates with the outside; the other side of the guide cavity 11 is provided with a return plate 4, the return plate 4 includes a left return wall 41, a middle return wall 42 and a right return wall 43, the left return wall 41 is away from the liquid inlet hole One end of the guide cavity 11 is vertically connected to one end of the middle reflux wall 42, and the other end of the middle reflux wall 42 is vertically connected to one end of the right reflux wall 43 away from the liquid inlet hole 12. A liquid outlet 13 is provided on one end of the guide cavity 11 close to the middle reflux wall 42, and one end of the liquid outlet 13 is connected to the outside after passing through the top cover 1; the surroundings of the top cover 1 are connected to the surroundings of the bottom plate 2, and a shovel tooth group 5 is provided in the middle of the bottom plate 2, one end of the shovel tooth group 5 is connected to one end of the left guide plate 3, one end of the shovel tooth group 5 is connected to one end of the right guide plate 31, and the other end of the shovel tooth group 5 is connected to one end of the left reflux wall 41 and the right reflux wall 43. The shovel tooth group 5 includes a plurality of shovel teeth 51, and a flow channel 52 is between two adjacent shovel teeth 51, and the flow channel 52 is parallel to the left guide plate 3. Preferably, a thermal conductive silicone grease 6 is fixed to the bottom of the bottom plate 2, and one side of the thermal conductive silicone grease 6 is connected to the chip.

[0060] When in use, the refrigerant 7 first flows along the liquid inlet 12, and then flows between the left guide plate 3 and the right guide plate 31. At this time, the left guide plate 3 and the right guide plate 31 guide the refrigerant 7 to make the refrigerant 7 flush the central part of the shovel tooth group 5. At this time, the refrigerant 7 contacts the outer surfaces of the multiple shovel teeth 51, and then the refrigerant 7 absorbs the heat of the shovel teeth 51 to cool the shovel teeth 51, and then the shovel teeth 51 cool the bottom plate 2, and then the bottom plate 2 cools the thermal grease 6, and then the thermal grease 6 cools the chip; the chip is located in the central part of the bottom plate 2, so the temperature of the central part of the bottom plate 2 is the highest, and the temperature of the shovel teeth 51 located in the central part is the highest. The low-temperature refrigerant 7 directly flushes the hot and cold parts under the guidance of the left guide plate 3 and the right guide plate 31. The shovel teeth 51 with the highest temperature have a better cooling effect on the shovel teeth 51; then the refrigerant 7 continues to move along the shovel teeth 51, and the refrigerant 7 enters the return plate 4 again, and then a part of the refrigerant 7 moves to the left return wall 41, and the other part of the refrigerant 7 moves to the right return wall 43, and the refrigerant 7 flows to the shovel teeth 51 on both sides of the center part. At this time, the refrigerant 7 contacts the outer surface of the shovel teeth 51, and then the refrigerant 7 absorbs the heat of the shovel teeth 51 to cool the shovel teeth 51, and then the shovel teeth 51 cool the bottom plate 2, thereby making the temperature on the bottom plate 2 uniform; then the refrigerant 7 flows to the outside of the left guide plate 3 and the right guide plate 31, and then the refrigerant 7 flows along the side wall of the guide cavity 11 to the liquid outlet 13, and then the refrigerant 7 flows out from the liquid outlet 13; please refer to Fig.13 — Fig.15 It can be seen that the temperature at the chip is the highest, and the refrigerant 7 with the lowest temperature will directly flush the scraper teeth 51 above the temperature point; see Fig.16 — Fig.17 By comparing the two figures, we can see the cooling effect of the refrigerant 7 on the scraper teeth 51, that is, the temperature of the scraper teeth 51 at the chip is effectively reduced; see Fig.18 — Fig.19 It can be seen that the temperature of the refrigerant 7 near the chip increases, that is, the refrigerant 7 absorbs the heat of the scraper teeth 51 near the chip and heats up; see Fig. 20 — Fig. 22 , we can see the pressure of the refrigerant 7 when it flows, which can ensure that the refrigerant 7 does not flow back; please refer to Fig.23 — Fig.24 , it can be seen that the flow rate of the refrigerant 7, that is, the low-temperature refrigerant 7 will quickly flush the scraper teeth 51 with the highest temperature in the center, so the cooling effect is better.

[0061] Embodiment 2: The basic content is the same as that of Example 1, except that: See also Figure 1 — Figure 8, the distance between the left return wall 41 and the right return wall 43 is greater than twice the distance between the left guide plate 3 and the right guide plate 31. The vertical distance between the left return wall 41 and the left guide plate 3 is greater than half the distance between the left guide plate 3 and the right guide plate 31; the vertical distance between the right return wall 43 and the right guide plate 31 is greater than half the distance between the right guide plate 31 and the left guide plate 3.

[0062] When in use, the refrigerant 7 flows along the shovel teeth 51 at the center to the middle return wall 42, and then the refrigerant 7 is divided into two parts, one part of the refrigerant 7 moves to the left return wall 41, and the other part of the refrigerant 7 moves to the right return wall 43. These two parts of the refrigerant 7 leave the middle of the middle return wall 42 to leave space for the refrigerant 7 that subsequently flows to the middle of the middle return wall 42; if the vertical distance between the left return wall 41 and the left guide plate 3 is greater than half of the distance between the left guide plate 3 and the right guide plate 31, the vertical distance between the right return wall 43 and the right guide plate 31 If it is greater than half of the distance between the right guide plate 31 and the left guide plate 3, sufficient space can be left for the refrigerant 7 flowing to the middle return wall 42. If the vertical distance between the left return wall 41 and the left guide plate 3 is less than half of the distance between the left guide plate 3 and the right guide plate 31, and the vertical distance between the right return wall 43 and the right guide plate 31 is less than half of the distance between the right guide plate 31 and the left guide plate 3, insufficient space will cause the refrigerant 7 leaving the middle return wall 42 and the refrigerant 7 entering the middle return wall 42 to interfere with each other, thereby affecting the cooling effect.

[0063] Embodiment 3: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig. 9 The end of the flow guiding cavity 11 close to the liquid outlet hole 13 is the outlet guiding cavity 14, and the outlet guiding cavity 14 includes an outlet guiding left wall 141 and an outlet guiding right wall 142, and the angle between the outlet guiding left wall 141 and the outlet guiding right wall 142 is less than 180 degrees, and the outlet hole 13 is between the outlet guiding left wall 141 and the outlet guiding right wall 142. The end of the flow guiding cavity 11 close to the liquid inlet hole 12 is the return guiding cavity 15, and the return guiding cavity 15 includes a return guiding left wall 151 and a return guiding right wall 152, and the angle between the return guiding left wall 151 and the return guiding right wall 152 is less than 180 degrees, and the liquid inlet hole 12 is between the return guiding left wall 151 and the return guiding right wall 152. A positioning plate 21 is provided on the bottom plate 2 , one end of the positioning plate 21 is connected to the bottom of the outgoing guide left wall 141 and the outgoing guide right wall 142 , and the other end of the positioning plate 21 is connected to the bottom of the return guide left wall 151 and the return guide right wall 152 .

[0064] When in use, when the refrigerant 7 flows out along the shovel teeth 51, the refrigerant 7 is guided by the return guide left wall 151 and the return guide right wall 142, so that the refrigerant 7 moves along the side wall of the guide cavity 11 toward the outlet guide left wall 141 and the outlet guide right wall 142, and then the refrigerant 7 is guided by the outlet guide left wall 141 and the outlet guide right wall 142, so that the refrigerant 7 moves toward the liquid outlet hole 13; the angle between the return guide left wall 151 and the return guide right wall 152 is less than one hundred and eighty Ten degrees, that is, the end of the return guide left wall 151 and the return guide right wall 152 away from the liquid inlet hole 12 is close to the liquid outlet hole 13, so the guiding effect on the refrigerant 7 is achieved, and one end of the outlet guide left wall 141 and the outlet guide right wall 142 is close to the liquid outlet hole 13, so the guiding effect on the refrigerant 7 is achieved; the positioning plate 21 is connected to the bottom of the outlet guide left wall 141 and the outlet guide right wall 142, and is connected to the bottom of the return guide left wall 151 and the return guide right wall 152, so as to facilitate positioning during welding assembly.

[0065] Embodiment 4: The basic content is the same as that of Example 1, except that: See also Figure 1 — Figure 8 The end of the left guide plate 3 close to the shovel tooth group 5 is triangular, the end of the right guide plate 31 close to the shovel tooth group 5 is triangular, the end of the left return wall 41 close to the shovel tooth group 5 is triangular, and the end of the right return wall 43 close to the shovel tooth group 5 is triangular.

[0066] When in use, one end of the left guide plate 3 and the right guide plate 31 connected to the shovel tooth group 5 is triangular, so the contact area between the left guide plate 3 and the right guide plate 31 and the shovel teeth 51 is small, so the left guide plate 3 and the right guide plate 31 will not block the shovel teeth 51, that is, the refrigerant 7 can smoothly flow into the flow channel 52 between all the shovel teeth 51; one end of the left return wall 41 and the right return wall 43 connected to the shovel tooth group 5 is triangular, so the contact area between the left return wall 41 and the right return wall 43 and the shovel teeth 51 is small, so the left return wall 41 and the right return wall 43 will not block the shovel teeth 51, that is, the refrigerant 7 can smoothly flow into the flow channel 52 between all the shovel teeth 51.

[0067] Embodiment 5: The basic content is the same as that of Example 1, except that: See also Figure 1 — Fig.12 The length of the shovel tooth set 5 is 43.17 mm, the width of the shovel tooth set 5 is 53.55 mm, and the height of the shovel tooth set 5 is 3 to 6 mm. The distance between the left guide plate 3 and the right guide plate 31 is 15.6 mm or 29.45 mm.

[0068] When in use, the length of the shovel tooth group 5 is 43.17 mm, the width is 53.55 mm, and the height is preferably 5.5 mm. At this time, the size of the shovel tooth group 5 is more appropriate, and the shovel tooth group 5 can have a better heat dissipation effect. The distance between the left guide plate 3 and the right guide plate 31 controls the width of the shovel teeth 5 in the center part flushed by the refrigerant 7. The cooling effect is best when the width is 15.6 mm, and the cooling effect is second to the width of 29.45 mm. It can be selected according to the required cooling number.

[0069] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A side-inlet and side-outlet microchannel N-type flow liquid cooling device, characterized in that: The device comprises a top cover (1) and a bottom plate (2); The middle part of the top cover (1) is a guide cavity (11), and a left guide plate (3) and a right guide plate (31) are arranged on one side of the guide cavity (11). The left guide plate (3) and the right guide plate (31) are arranged opposite to each other. The guide cavity (11) is provided with a liquid inlet hole (12) at a position between the left guide plate (3) and the right guide plate (31), and one end of the liquid inlet hole (12) passes through the top cover (1) and communicates with the outside. A return plate (4) is arranged on the other side of the guide cavity (11), and the return plate (4) comprising a left reflux wall (41), a middle reflux wall (42) and a right reflux wall (43), wherein one end of the left reflux wall (41) away from the liquid inlet hole (12) is vertically connected to one end of the middle reflux wall (42), and the other end of the middle reflux wall (42) is vertically connected to one end of the right reflux wall (43) away from the liquid inlet hole (12), and a liquid outlet hole (13) is provided on one end of the guide cavity (11) close to the middle reflux wall (42), and one end of the liquid outlet hole (13) passes through the top cover (1) and communicates with the outside; The four sides of the top cover (1) are connected to the four sides of the bottom plate (2); a shovel tooth group (5) is provided in the middle of the bottom plate (2); one end of the shovel tooth group (5) is connected to one end of the left guide plate (3); one end of the shovel tooth group (5) is connected to one end of the right guide plate (31); and the other end of the shovel tooth group (5) is connected to one end of the left return wall (41) and one end of the right return wall (43).

2. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1, characterized in that: The shovel tooth group (5) comprises a plurality of shovel teeth (51), a flow channel (52) is provided between two adjacent shovel teeth (51), and the flow channel (52) is parallel to the left guide plate (3).

3. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1 or 2, characterized in that: The distance between the left return wall (41) and the right return wall (43) is greater than twice the distance between the left guide plate (3) and the right guide plate (31).

4. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 3, characterized in that: The vertical distance between the left return wall (41) and the left guide plate (3) is greater than half the distance between the left guide plate (3) and the right guide plate (31); the vertical distance between the right return wall (43) and the right guide plate (31) is greater than half the distance between the right guide plate (31) and the left guide plate (3).

5. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1 or 2, characterized in that: One end of the guide cavity (11) close to the liquid outlet hole (13) is an outlet guide cavity (14), and the outlet guide cavity (14) comprises an outlet guide left wall (141) and an outlet guide right wall (142), the angle between the outlet guide left wall (141) and the outlet guide right wall (142) is less than one hundred and eighty degrees, and the liquid outlet hole (13) is between the outlet guide left wall (141) and the outlet guide right wall (142).

6. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 5, characterized in that: One end of the guide cavity (11) close to the liquid inlet hole (12) is a return guide cavity (15), the return guide cavity (15) comprises a return guide left wall (151) and a return guide right wall (152), the included angle between the return guide left wall (151) and the return guide right wall (152) is less than one hundred and eighty degrees, and the liquid inlet hole (12) is between the return guide left wall (151) and the return guide right wall (152).

7. The side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 6, characterized in that: A positioning plate (21) is provided on the bottom plate (2), one end of the positioning plate (21) is connected to the bottom of the outgoing guide left wall (141) and the outgoing guide right wall (142), and the other end of the positioning plate (21) is connected to the bottom of the return guide left wall (151) and the return guide right wall (152).

8. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1 or 2, characterized in that: One end of the left guide plate (3) close to the shovel tooth group (5) is triangular, one end of the right guide plate (31) close to the shovel tooth group (5) is triangular, one end of the left return wall (41) close to the shovel tooth group (5) is triangular, and one end of the right return wall (43) close to the shovel tooth group (5) is triangular.

9. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1 or 2, characterized in that: The length of the shovel tooth group (5) is 43.17 millimeters, the width of the shovel tooth group (5) is 53.55 millimeters, and the height of the shovel tooth group (5) is 3 to 6 millimeters.

10. A side-inlet and side-outlet microchannel N-type flow liquid cooling device according to claim 1 or 2, characterized in that: The distance between the left guide plate (3) and the right guide plate (31) is 15.6 millimeters or 29.45 millimeters.

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