Jet spray cooling heat dissipation device

Abstract

The invention discloses a jet spray cooling heat dissipation device, and relates to the technical field of spray cooling, the jet spray cooling heat dissipation device comprises a liquid inlet plate, the middle of the liquid inlet plate is provided with a liquid inlet cavity, the side, close to the liquid inlet cavity, of the liquid inlet plate is detachably connected with a plate type nozzle, the side, away from the liquid inlet plate, of the plate type nozzle is detachably connected with a heat dissipation plate, and the middle of the heat dissipation plate is provided with an atomization cavity; through the arrangement of a reciprocating execution mechanism, when spraying is stopped every time, liquid drops at a heat dissipation plate and a spraying head can be synchronously collected and discharged through cooperation of a V-shaped groove and two guide plates, and due to the fact that the V-shaped groove is formed by fixedly communicating an arc-shaped groove plate and a straight groove in the inner wall of the heat dissipation plate, when a walking wheel moves anticlockwise along the track of the V-shaped groove, the liquid drops can be collected and discharged through the arc-shaped groove plate and the straight groove in the inner wall of the heat dissipation plate. The sliding box can be synchronously driven to slide in the sliding sleeve, so that the sliding box is adaptive to the cavity range of the atomization cavity, the comprehensiveness of liquid drop collection is improved, and the phenomenon that the temperature distribution of liquid and the temperature distribution of a heat dissipation plate are not uniform after chip heat is transferred to the surface of the heat dissipation plate is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of spray cooling, in particular to a jet spray cooling and heat dissipation device. Background Art

[0002] With the rapid development of electronic equipment integration technology, the power density of electronic components is increasing, and the heat dissipation requirements are becoming increasingly stringent. Therefore, the heat dissipation of high power consumption and high heat flux density bodies has been achieved by using jet spray cooling. The liquid working fluid is pressurized to form a high-pressure liquid that is ejected from the atomizing nozzle, atomized into uniform fine droplets in a low-pressure environment, and impacts the heating surface at a high speed to form a liquid film on the heating surface. The heating surface is cooled by the impact of droplets, scouring of the liquid film, evaporation, boiling, etc.

[0003] In the prior art, when spraying water mist, there is a force of mutual attraction between water molecules, namely, surface tension. At the nozzle mouth, when the water flow is dispersed into tiny droplets, the surface tension will try to keep these droplets spherical to minimize the surface area. When the droplets gather large enough, the gravity they are subjected to will overcome the restraint of the surface tension, causing the droplets to fall. That is, during operation, the spray will continuously gather into water droplets and remain at the nozzle mouth, and will drip when it gathers to a certain extent, so that the vertically arranged nozzles will intermittently drip downward after accumulating liquid, which may block the lower nozzles multiple times, affecting the overall uniformity of the spray. Secondly, after each spray is sprayed, the spray is easy to adhere to the surface of the heat sink to form water droplets. Due to the different media of the heat sink and the liquid, the temperature distribution of the liquid and the heat sink itself will be uneven when the chip heat is transferred to the surface of the heat sink when it is used next time. The above two aspects can affect the chip heat dissipation uniformity of high heat flux density electronic devices, reduce the heat dissipation efficiency, and long-term uneven heat dissipation will also affect the service life of the chip;

[0004] In addition, in the current research on spray cooling, researchers are more focused on the heat transfer mechanism of spray cooling. These experimental or theoretical results are obtained under relatively ideal conditions, such as larger and more empty spray cavities. The effect of fluid management on heat transfer in these cavities is relatively weak. In actual applications, fluid management and the use of nozzles are very critical. If the liquid cannot be discharged in time and is retained, the heat transfer performance will be significantly weakened. If droplets naturally gather at the nozzle mouth, the spray of the next injection may be dispersed, which will also affect the heat transfer effect.

[0005] In view of this, the present invention proposes a jet spray cooling and heat dissipation device to make up for and improve the deficiencies of the prior art. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a jet spray cooling and heat dissipation device which can improve the comprehensiveness of droplet collection; increase the service life of the chip; and ensure that the spray always maintains the initial uniformity, so as to solve the corresponding technical problems raised in the above background technology.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a jet spray cooling and heat dissipation device, including a liquid inlet plate, a liquid inlet cavity is opened in the middle of the liquid inlet plate, a plate-type nozzle is detachably connected to the side of the liquid inlet plate close to the liquid inlet cavity, a heat dissipation plate is detachably connected to the side of the plate-type nozzle away from the liquid inlet plate, an atomization cavity is opened in the middle of the heat dissipation plate, and also includes:

[0008] A reciprocating actuator is used to assist in gathering droplets to restore the state in the atomization chamber after each spraying is completed;

[0009] The guide mechanism is used to guide the droplets at the nozzle outward during the spraying process.

[0010] Preferably, the reciprocating actuator includes a servo motor fixedly connected to the inner wall of the middle part of the heat sink, the output end of the servo motor is fixedly connected to a sleeve, the side of the sleeve away from the servo motor is rotatably connected to a fixed plate, the outer wall of the fixed plate is fixedly connected to the inner wall of the heat sink, the inner wall of the sleeve is slidably connected to a slide box, the side of the slide box away from the sleeve is rotatably connected to a travel wheel, a V-shaped groove is provided on the inner wall of the heat sink away from the servo motor, and the outer wall of the travel wheel abuts against the V-shaped groove.

[0011] Preferably, the reciprocating actuator also includes a pair of first guide plates fixedly connected to both sides of the sliding sleeve, a pair of second guide plates fixedly connected to both sides of the outer wall of the sliding box, the two second guide plates are slidably connected to the top of the first guide plate, a pair of open grooves are provided on the side of the sliding sleeve close to the sliding box, the two first guide plates are slidably connected in the open grooves, a plurality of inclined grooves are provided on the sides of the first guide plate and the second guide plate away from each other, the edges of the first guide plate and the second guide plate on one side are fixedly connected to a silicone plate, and the edges of the first guide plate and the second guide plate on the other side are fixedly connected to bristles.

[0012] Preferably, the reciprocating actuator also includes a plurality of through holes, which are all opened on both sides of the middle of the sliding sleeve and the sliding box, and the through holes are arranged close to both sides of the first guide plate and the second guide plate, and drainage grooves are opened at the bottom of the sliding sleeve and the sliding box.

[0013] Preferably, the flow guide mechanism includes a plurality of nozzles detachably connected to the middle part of the plate-type nozzle, the outer walls of the plurality of nozzles are provided with two annular grooves, the inner walls of the two annular grooves are slidably connected with sliding columns, the two sliding columns are fixedly connected with an arc plate on the side away from the nozzles, the plurality of arc plates are provided with flow guide grooves on the side close to the nozzles, the bottom of the arc plate is provided with liquid outlet holes on the side close to the plate-type nozzle, and the bottom of the arc plate is fixedly connected with a tongue plate at the edge close to the liquid outlet hole.

[0014] Preferably, the arc-shaped plate is wider at the top and narrower at the bottom.

[0015] Preferably, the tongue plate is in an arc shape and the concave and convex positions of the arc surface are arranged opposite to those of the arc plate.

[0016] Preferably, a circular arc groove plate is provided in the middle of the V-shaped groove, and the V-shaped groove is formed by the circular arc groove plate and the straight groove on the inner wall of the heat dissipation plate being fixedly connected.

[0017] Preferably, the first guide plate and the second guide plate are both arranged to be inclined upward relative to the sliding sleeve.

[0018] Preferably, a liquid inlet is provided on a side of the middle of the liquid inlet plate away from the plate-type nozzle, and a liquid discharge port is provided at the bottom of the heat dissipation plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Compared with the prior art, where the spray gathers into water droplets and adheres to the heat sink or accumulates and remains on the nozzle, and the long-term uneven heat dissipation affects the service life of the chip, through the setting of the reciprocating actuator, each time the spraying is stopped, the V-shaped groove and the two guide plates are used to synchronously collect and discharge the droplets at the heat sink and the nozzle. Since the V-shaped groove is formed by the arc groove plate and the straight groove on the inner wall of the heat sink, when the walking wheel moves counterclockwise along the track of the V-shaped groove, it can synchronously drive the slide box to slide in the slide sleeve, so that the slide box adapts to the cavity range of the atomization cavity, improves the comprehensiveness of droplet collection, and avoids the phenomenon that the temperature distribution of the liquid and the heat sink itself is uneven after the heat of the chip is transferred to the surface of the heat sink;

[0021] In addition, the first guide plate and the second guide plate are both inclined upward relative to the sliding sleeve, so the droplets collected on the plate can be accelerated along the slope to flow to the through hole, thereby improving the drainage efficiency. Finally, each time the chip is turned on, each nozzle starts to spray water mist directly toward the heat sink, and will not be affected by the residual and gathered water droplets last time, thereby ensuring the initial uniformity of the spray. In short, by collecting and accelerating the discharge of droplets on the heat sink and the nozzle surface of the jet spray cooling device, the heat dissipation uniformity of the heat sink is ensured, while the uniform distribution of the spray is not affected, thereby improving the cooling uniformity and increasing the service life of the chip.

[0022] 2. During the spraying process, the guide mechanism is set up, and an arc plate with a wide top and a narrow bottom is used, in combination with a guide groove, so that the droplets continuously generated during operation are diagonally guided along the arc of the guide groove, and flow out along the tongue plate after reaching the liquid outlet. Since the tongue plate is in an arc shape and the concave and convex positions of the arc surface are set opposite to the arc plate, the liquid can be delayed from falling from the liquid outlet to avoid splashing of droplets, and part of the sprayed mist is driven and absorbed into the droplets, thereby affecting the spray concentration. Moreover, under the action of the annular groove, no matter how much the nozzle is rotated during installation, the arc plate is always facing downward, without the need for secondary adjustment, which is convenient for receiving droplets and avoiding the droplets above from falling directly into the nozzle below, thereby ensuring that the spray always maintains the initial uniformity and is not affected by the water droplets generated during the spraying process;

[0023] 3. Considering the integration and compactness of the design application in electronic equipment, the size of the cavity is set to be suitable for electronic chips with high heat flux density, which can not only avoid the excessive volume of the traditional spray cavity, but also facilitate the distribution and discharge of the liquid. The liquid inlet cavity and the atomization cavity are separated by a multi-nozzle array. In order to make the liquid distribution of the plate nozzle uniform, eight small nozzles are distributed in the central area of ​​the main body. The eight small nozzles are arranged crosswise to reduce the blind area of ​​spray distribution and increase the dense distribution between droplets, thereby improving the heat exchange performance. The liquid enters the liquid inlet cavity from the inlet of the liquid inlet plate, is atomized through the plate nozzle panel, and is evenly sprayed on the surface of the heating object. In addition, since the plate nozzle adopts a design that separates the panel and the nozzle, the nozzle part can be easily replaced, which reduces the serious wear of the nozzle during long-term use and the weakening of the atomization performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0025] Figure 2 A three-dimensional cross-sectional view of the present invention;

[0026] Figure 3 The present invention shows Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 4 It is a structural schematic diagram of the sliding sleeve connection shown in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the connection of the travel wheels shown in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the connection of the silicone plate shown in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the arc plate connection shown in the present invention;

[0031] Figure 8 It is a structural schematic diagram of the sliding column connection shown in the present invention;

[0032] Fig. 9 It is a side cross-sectional view of the atomizing chamber shown in the present invention;

[0033] Fig.10 It is a three-dimensional cross-sectional view of the nozzle shown in the present invention.

[0034] The numbers in the figure are:

[0035] 1. Heat sink; 2. Plate nozzle; 3. Liquid inlet plate; 4. Liquid inlet cavity; 5. Atomization cavity;

[0036] 6. reciprocating actuator; 61. V-shaped groove; 62. servo motor; 63. first guide plate; 64. sliding sleeve; 65. drainage groove; 66. through hole; 67. inclined groove; 68. silicone plate; 69. second guide plate; 610. sliding box; 611. brush hair; 612. fixed plate; 613. running wheel; 614. opening groove;

[0037] 7. flow guide mechanism; 71. nozzle; 72. arc plate; 73. sliding column; 74. annular groove; 75. flow guide groove; 76. liquid outlet hole; 77. tongue plate. DETAILED DESCRIPTION

[0038] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0039] Embodiments of the present invention

[0040] Please refer to Figures 1 to 10 As shown, a jet spray cooling and heat dissipation device comprises a liquid inlet plate 3, a liquid inlet cavity 4 is provided in the middle of the liquid inlet plate 3, a plate-type nozzle 2 is detachably connected to a side of the liquid inlet plate 3 close to the liquid inlet cavity 4, a heat dissipation plate 1 is detachably connected to a side of the plate-type nozzle 2 away from the liquid inlet plate 3, an atomizing cavity 5 is provided in the middle of the heat dissipation plate 1, and further comprises:

[0041] A reciprocating actuator 6 is used to assist in gathering droplets to restore the state in the atomizing chamber 5 after each spraying is completed;

[0042] The flow guide mechanism 7 is used to guide the droplets at the nozzle to the desired direction during the spraying process;

[0043] The reciprocating actuator 6 includes a servo motor 62 fixedly connected to the inner wall of the middle part of the heat sink 1, a sleeve 64 fixedly connected to the output end of the servo motor 62, a fixed plate 612 rotatably connected to the side of the sleeve 64 away from the servo motor 62, an outer wall of the fixed plate 612 fixedly connected to the inner wall of the heat sink 1, a slide box 610 slidably connected to the inner wall of the sleeve 64, a travel wheel 613 rotatably connected to the side of the slide box 610 away from the sleeve 64, a V-shaped groove 61 is provided on the inner wall of the heat sink 1 away from the servo motor 62, and the outer wall of the travel wheel 613 abuts against the V-shaped groove 61;

[0044] The reciprocating actuator 6 also includes a pair of first guide plates 63 fixedly connected to both sides of the sliding sleeve 64, a pair of second guide plates 69 fixedly connected to both sides of the outer wall of the sliding box 610, the two second guide plates 69 are slidably connected to the top of the first guide plate 63, a pair of opening grooves 614 are provided on the side of the sliding sleeve 64 close to the sliding box 610, the two first guide plates 63 are slidably connected in the opening grooves 614, a plurality of inclined grooves 67 are provided on the side away from each other of the first guide plate 63 and the second guide plate 69, a silicone plate 68 is fixedly connected to the edges of the first guide plate 63 and the second guide plate 69 on one side, and bristles 611 are fixedly connected to the edges of the first guide plate 63 and the second guide plate 69 on the other side;

[0045] The reciprocating actuator 6 further includes a plurality of through holes 66, which are all provided on both sides of the middle of the sliding sleeve 64 and the sliding box 610, and the through holes 66 are all provided close to both sides of the first guide plate 63 and the second guide plate 69, and the bottom of the sliding sleeve 64 and the sliding box 610 are provided with drainage grooves 65;

[0046] A circular arc groove plate is provided in the middle of the V-shaped groove 61, and the V-shaped groove 61 is formed by the circular arc groove plate and the straight groove on the inner wall of the heat sink 1 being fixedly connected;

[0047] The first guide plate 63 and the second guide plate 69 are both arranged to be inclined upward relative to the sliding sleeve 64;

[0048] A liquid inlet is provided at a side of the middle of the liquid inlet plate 3 away from the plate-type nozzle 2, and a liquid discharge port is provided at the bottom of the heat dissipation plate 1;

[0049] The servo motor 62 is provided with a steering gear for changing direction of rotation, and the inclined groove 67 is respectively arranged close to the silicone plate 68 and the bristles 611 to make the liquid droplets flow to the sliding sleeve 64 and the sliding box 610 at the first time.

[0050] The effects achieved by this embodiment are as follows: In the prior art, during operation, the spray will continuously gather into water droplets and remain at the nozzle mouth, and will drip when it gathers to a certain extent, so that the vertically arranged nozzles will intermittently drip downward after accumulating liquid, which may block the lower nozzles multiple times, affecting the overall uniformity of the spray. Secondly, after each spray spray is completed, the spray is easy to adhere to the surface of the heat sink 1 to form water droplets, which will cause the temperature distribution of the liquid and the heat sink 1 itself to be uneven when used next time. Compared with the prior art, through the implementation of this embodiment, the reciprocating actuator 6 can adopt the cooperation of the V-shaped groove 61 and the two guide plates, and can synchronously collect and discharge the droplets at the heat sink 1 and the nozzle 71, so that the slide box 610 adapts to the cavity range of the atomization chamber 5, improves the comprehensiveness of the droplet collection, and cooperates with the first guide plate 63 and the second guide plate 69 to be inclined upward relative to the sliding sleeve 64. Finally, when the chip is turned on each time, the direction of each nozzle spraying water mist is directly toward the heat sink 1 to ensure the initial uniformity of the spray.

[0051] Further examples:

[0052] Please refer to Figure 2 , Figures 7 to 10 As shown, the flow guide mechanism 7 includes a plurality of nozzles 71 detachably connected to the middle of the plate-type nozzle 2, the outer walls of the plurality of nozzles 71 are provided with two annular grooves 74, the inner walls of the two annular grooves 74 are slidably connected with sliding posts 73, the two sliding posts 73 are fixedly connected with an arc plate 72 on one side away from the nozzle 71, the plurality of arc plates 72 are provided with a flow guide groove 75 on one side close to the nozzle 71, the bottom of the arc plate 72 is provided with a liquid outlet 76 on one side close to the plate-type nozzle 2, and the bottom of the arc plate 72 is fixedly connected with a tongue plate 77 at the edge close to the liquid outlet 76;

[0053] The arc-shaped plate 72 is arranged to be wide at the top and narrow at the bottom;

[0054] The tongue plate 77 is in an arc shape and the concave and convex positions of the arc surface are arranged opposite to the arc plate 72;

[0055] Wherein: the outer wall of each nozzle 71 is provided with a flow guide mechanism 7, and the outer wall size of the arc plate 72 is consistent with the nozzle 71 in equal proportion.

[0056] The effects achieved by this embodiment are as follows: In the prior art, fluid management and the use of nozzles are very critical. If the liquid cannot be discharged in time and is retained, the heat exchange performance will be significantly weakened. If the nozzle mouth naturally gathers droplets, the spray of the next injection may be dispersed, which also affects the heat exchange effect. Compared with the prior art, through the implementation of this embodiment, the guide mechanism 7 can adopt an arc plate 72 with a wide top and a narrow bottom, and cooperate with the guide groove 75, so that the droplets continuously generated during operation are diagonally guided along the curvature of the guide groove 75, and after reaching the liquid outlet 76, they flow out along the tongue plate 77, avoiding droplet splashing and affecting the spray concentration. Under the action of the annular groove 74, the arc plate 72 is always facing downward, thereby ensuring that the spray always maintains the initial uniformity and is not affected by the water droplets generated during the spraying process.

[0057] The complete usage steps and working principle of the above embodiment are as follows:

[0058] In the initial state: the sliding sleeve 64 naturally falls to the bottom of the heat sink 1 , and the silicone plate 68 and the first guide plate 63 are not in contact with the heat sink 1 and the nozzle 71 .

[0059] When in use, the cooling liquid flows into the liquid inlet plate 3 under pressure, and is atomized and sprayed by the plate nozzle 2. The atomization chamber 5 forms a cooling chamber, and its outer wall can be close to the surface to be cooled to achieve heat exchange. Then the cooling liquid flows back to the condensation end through the pipeline after atomization and spraying, realizing liquid circulation. When the high heat flux density electronic device stops working, the plate nozzle 2 stops spraying. At this time, the servo motor 62 is started through the external control system. Figure 4 From the perspective, the servo motor 62 drives the sleeve 64 to rotate counterclockwise, and drives the slide box 610 and the running wheel 613 to move accordingly through the sleeve 64. Since the V-shaped groove 61 is formed by the arc groove plate and the straight groove on the inner wall of the heat dissipation plate 1 being fixedly connected, and the outer wall of the running wheel 613 is in contact with the V-shaped groove 61, when the running wheel 613 moves counterclockwise along the track of the V-shaped groove 61, it can synchronously drive the slide box 610 to slide in the sleeve 64, and adapt to the size of the atomization chamber 5, so that the sleeve 64 can cover the entire range of the atomization chamber 5 when rotating, and can reduce the resistance of the V-shaped groove 61 under the action of the running wheel 613, thereby increasing the stability and durability of the device;

[0060] Furthermore, when the sliding sleeve 64 and the sliding box 610 rotate, the first guide plate 63 and the second guide plate 69 on both sides of the two rotate accordingly, and the water droplets adhering to the inner wall of the heat sink 1 are collected from bottom to top through the silicone plate 68 on one side, and then drained to the first guide plate 63 or the second guide plate 69 through the inclined groove 67, while the bristles 611 on the other side continuously squeeze the spray port of the contact nozzle 71, and the water droplets remaining there are also introduced into the first guide plate 63 or the second guide plate 69 through the bristles 611. Since the first guide plate 63 and the second guide plate 69 are both inclined upward relative to the sliding sleeve 64, the droplets on the first guide plate 63 or the second guide plate 69 flow along the slope to the through hole 66, enter the sliding sleeve 64 and the sliding box 610, and are collected. , and finally discharged through the drainage groove 65 at the bottom. When the sliding sleeve 64 rotates to the maximum position, the servo motor 62 rotates in the opposite direction under the action of the steering gear, so that the sliding sleeve 64 passes through the V-shaped groove 61 and the core area of ​​the nozzle 71 again clockwise, and passes in the opposite direction. The silicone plate 68 and the bristles 611 are bent in the opposite direction, and the resulting arc causes the droplets to enter the reverse side, and the remaining droplets are drained along the bottom of the first guide plate 63 and the second guide plate 69 on the reverse side into the bottom through hole 66, and finally discharged at the drainage port, so that there is no droplet aggregation on the inner surface of the heat sink 1 and the spray port of the nozzle 71, ensuring the heat dissipation uniformity of the heat sink 1, and avoiding the accumulated water droplets affecting the deflection when the nozzle 71 is turned on for use next time, ensuring the initial uniformity of the spray;

[0061] Please refer to the above working process Figures 1 to 6 .

[0062] Furthermore, when the nozzle 71 is installed, no matter the nozzle 71 is rotated at any angle due to the installation, under the action of the annular groove 74, the arc plate 72 is always located below the nozzle 71 under the cooperation of the slide column 73 and its own gravity, so as to receive the droplets dripping from the spray port of the nozzle 71 during operation, without adjusting the position of the arc plate 72. During operation, the continuously generated droplets can be diagonally guided along the curvature of the guide groove 75, and flow out along the tongue plate 77 after reaching the liquid outlet hole 76. The liquid outlet hole 76 is arranged close to the plate nozzle 2, which can avoid In order to prevent the droplets from falling directly into the spray port of the nozzle 71 below, the droplets gather at the lower position of the nozzle 71 and keep dripping, and the arc plate 72 is arranged to be wide at the top and narrow at the bottom. The wider receiving portion at the top can collect most of the droplets generated by the spray port, and then drain them along the guide groove 75 to the narrower part below the arc plate 72 for centralized discharge, so that the droplets flow to the surface of the plate nozzle 2, thereby ensuring that the initial uniformity after the reciprocating actuator 6 is always maintained during the spraying process of the nozzle 71, and increasing the continuous uniformity of the spray;

[0063] Please refer to the above working process Figure 2 , Figures 7 to 10 .

[0064] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jet spray cooling and heat dissipation device, comprising a liquid inlet plate (3), characterized in that: A liquid inlet cavity (4) is provided in the middle of the liquid inlet plate (3), a plate-type nozzle (2) is detachably connected to a side of the liquid inlet plate (3) close to the liquid inlet cavity (4), a heat sink (1) is detachably connected to a side of the plate-type nozzle (2) away from the liquid inlet plate (3), an atomizing cavity (5) is provided in the middle of the heat sink (1), and further comprises: A reciprocating actuator (6) is used to assist in gathering droplets after each spraying is completed to restore the state in the atomizing chamber (5); The flow guiding mechanism (7) is used to guide the liquid droplets at the nozzle outlet in a deflected direction during the spraying process.

2. A jet spray cooling and heat dissipation device according to claim 1, characterized in that: The reciprocating actuator (6) comprises a servo motor (62) fixedly connected to the inner wall of the middle part of the heat sink (1); the output end of the servo motor (62) is fixedly connected to a sleeve (64); the side of the sleeve (64) away from the servo motor (62) is rotatably connected to a fixed plate (612); the outer wall of the fixed plate (612) is fixedly connected to the inner wall of the heat sink (1); the inner wall of the sleeve (64) is slidably connected to a slide box (610); the side of the slide box (610) away from the sleeve (64) is rotatably connected to a travel wheel (613); a V-shaped groove (61) is provided on the inner wall of the heat sink (1) away from the servo motor (62); the outer wall of the travel wheel (613) abuts against the V-shaped groove (61).

3. A jet spray cooling and heat dissipation device according to claim 2, characterized in that: The reciprocating actuator (6) also includes a pair of first guide plates (63) fixedly connected to both sides of the sliding sleeve (64), a pair of second guide plates (69) fixedly connected to both sides of the outer wall of the sliding box (610), the two second guide plates (69) are slidably connected to the top of the first guide plate (63), a pair of opening grooves (614) are provided on the side of the sliding sleeve (64) close to the sliding box (610), the two first guide plates (63) are slidably connected in the opening grooves (614), a plurality of inclined grooves (67) are provided on the side away from each other of the first guide plate (63) and the second guide plate (69), a silicone plate (68) is fixedly connected to the edges of the first guide plate (63) and the second guide plate (69) on one side, and bristles (611) are fixedly connected to the edges of the first guide plate (63) and the second guide plate (69) on the other side.

4. The jet spray cooling and heat dissipation device according to claim 3, characterized in that: The reciprocating actuator (6) further comprises a plurality of through holes (66), wherein the plurality of through holes (66) are arranged on both sides of the middle of the sliding sleeve (64) and the sliding box (610), and the through holes (66) are arranged close to both sides of the first guide plate (63) and the second guide plate (69), and drainage grooves (65) are arranged at the bottom of the sliding sleeve (64) and the sliding box (610).

5. The jet spray cooling and heat dissipation device according to claim 1, characterized in that: The flow guiding mechanism (7) comprises a plurality of nozzles (71) detachably connected to the middle part of the plate-type nozzle (2); the outer walls of the plurality of nozzles (71) are each provided with two annular grooves (74); the inner walls of the two annular grooves (74) are each slidably connected with a sliding column (73); the two sliding columns (73) are fixedly connected to an arc-shaped plate (72) on one side away from the nozzle (71); the plurality of arc-shaped plates (72) are each provided with a flow guiding groove (75) on one side close to the nozzle (71); the bottom of the arc-shaped plate (72) is each provided with a liquid outlet hole (76) on one side close to the plate-type nozzle (2); and the bottom of the arc-shaped plate (72) is each fixedly connected to an edge close to the liquid outlet hole (76) with a tongue plate (77).

6. The jet spray cooling and heat dissipation device according to claim 5, characterized in that: The arc-shaped plate (72) is arranged to be wider at the top and narrower at the bottom.

7. The jet spray cooling and heat dissipation device according to claim 5, characterized in that: The tongue plate (77) is in the shape of an arc surface, and the concave and convex positions of the arc surface are arranged opposite to those of the arc plate (72).

8. The jet spray cooling and heat dissipation device according to claim 2, characterized in that: A circular arc groove plate is arranged in the middle of the V-shaped groove (61), and the V-shaped groove (61) is formed by the circular arc groove plate and the straight groove on the inner wall of the heat dissipation plate (1) being fixedly connected.

9. The jet spray cooling and heat dissipation device according to claim 3, characterized in that: The first guide plate (63) and the second guide plate (69) are both arranged to be inclined upward relative to the sliding sleeve (64).

10. The jet spray cooling and heat dissipation device according to claim 1, characterized in that: A liquid inlet is provided at a side of the middle of the liquid inlet plate (3) away from the plate-type nozzle (2), and a liquid discharge port is provided at the bottom of the heat dissipation plate (1).

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