A micro-jet phase change cooling pump for laser crystals

Abstract

The present invention relates to the technical field of cooling pumps, and discloses a micro-jet phase change cooling pump for laser crystals, comprising a pump frame and a housing connected to the pump frame, a micro-jet pump group being mounted at the bottom of the pump frame, a drive system being mounted at the top of the pump frame, a cooling frame being connected to the drive system and being capable of synchronously moving up and down and left and right, and a multi-directional shaft being capable of alternating forward and reverse rotations, the reciprocating stroke and reciprocating frequency of the cooling frame being cyclically changed, an intercooler being rotatably mounted on the cooling frame, the intercooler being driven by the multi-directional shaft, an inner frame being provided on the inner side of the intercooler, the inner frame being fixedly connected to the pump frame, a water-cooling chamber being provided between the intercooler and the housing, the water-cooling chamber being filled with water-cooling liquid, a power shaft being rotatably mounted on the axis of the inner frame, and a rotor module being mounted on the power shaft. The present invention solves the problems of low heat dissipation efficiency and easy leakage of coolant in conventional cooling pump water-cooling structures, improves heat dissipation efficiency, ensures the sealing and stability of the water-cooling system, and extends the service life of the cooling pump.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling pumps, and more particularly to a micro-jet phase-change cooling pump for laser crystals. Background Art

[0002] In high-power laser applications, such as the generation and application of attosecond lasers, based on the interaction between high-intensity femtosecond laser pulses and gas targets, they can be used to study biological proteins, life phenomena, and atomic-scale dynamic processes. However, the ultra-high-power lasers used to generate attosecond laser light sources are still in the research and development stage. Thermal management technology for the crystals in ultra-high-power lasers is a major challenge in this research and development. Currently used impact jet cooling technology can achieve a heat dissipation index of 50-500w / cm² at room temperature. However, existing micro-jet phase change cooling pumps have the following technical issues when used:

[0003] The water-cooling structure of traditional cooling pumps has low heat dissipation efficiency, and the coolant is prone to leakage. The flow state of the water-cooling liquid is single, and the contact frequency and contact area with the intercooler shell, inner frame, and casing wall are limited, resulting in low heat exchange efficiency and inability to effectively prevent coolant leakage, affecting the normal operation of the water cooling system and the service life of the cooling pump. The heat dissipation structure of traditional cooling pumps cannot flexibly adjust the heat dissipation area according to the size and heating area of ​​the laser crystal, and cannot dissipate heat according to the actual situation of the laser crystal, resulting in insufficient targeted and effective heat dissipation.

[0004] Based on this, the present invention provides a micro-jet phase change cooling pump for laser crystals to solve the technical problems raised in the above background technology. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a micro-jet phase change cooling pump for laser crystals. The present invention solves the problems of low heat dissipation efficiency and easy leakage of coolant in the water-cooling structure of traditional cooling pumps, improves the heat dissipation efficiency, ensures the sealing and stability of the water cooling system, and extends the service life of the cooling pump.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a micro-jet phase change cooling pump for laser crystals, comprising a pump frame and a casing connected to the pump frame, a micro-jet pump group is installed at the bottom of the pump frame, a drive system is installed at the top of the pump frame, a cooling frame that can be synchronously moved up and down and left and right and a multi-directional shaft that can alternately reverse, the reciprocating stroke and reciprocating frequency of the cooling frame change cyclically, an intercooler shell is rotatably installed on the cooling frame, the intercooler shell is driven by the multi-directional shaft, an inner frame is provided on the inner side of the intercooler shell, the inner frame is fixedly connected to the pump frame, a water-cooling cavity is provided between the intercooler shell and the casing, and the inside of the water-cooling cavity It is filled with water-cooling liquid, and a power shaft is rotatably installed at the axis position of the inner frame, a rotor module is installed on the power shaft, the drive system is driven by the power shaft, a pitch adjustment module is installed on the pump frame, and the pitch adjustment module is transmission-connected to two symmetrically arranged and spacing-adjustable extension frames, and rollers are rotatably installed on the two extension frames, and energy storage torsion springs are provided at the rotating connection between the rollers and the extension frames, a heat dissipation belt is wound between the two rollers, a heat dissipation cavity is provided in the heat dissipation belt, and a water-cooling circulation component is provided between the heat dissipation cavity and the water-cooling cavity, and an air-cooling frame is installed on the pump frame and adjacent to the heat dissipation belt, and axial fans are evenly distributed on the air-cooling frame.

[0007] As a preferred technical solution of the present invention, the micro-jet pump group includes a pump casing installed at the bottom of the pump frame, a group of pump blades distributed in a circular array are installed on the power shaft and corresponding to the position on the inner side of the pump casing, and an inlet pipe and an outlet pipe are respectively installed on the pump casing, and the end of the outlet pipe is connected to the injector.

[0008] As a preferred technical solution of the present invention, the pitch adjustment module includes two clamping screws rotatably connected to the pump frame, the two clamping screws are linked by a first toothed belt, a clamping motor is installed on the pump frame, the output shaft end of the clamping motor is fixedly connected to one of the clamping screws, and the clamping screws are respectively provided with a positive thread segment and a negative thread segment, and the positive thread segment and the negative thread segment are respectively connected to the two extension frames for transmission.

[0009] As a preferred technical solution of the present invention, the drive system includes an axial vibration frame, an axial screw rotatably connected to the pump frame, a first flower shaft and a second flower shaft, the first flower shaft and the power shaft are both equipped with differential gears, the two differential gears are meshed with each other, a second toothed belt is connected between the second flower shaft and the axial screw, the axial screw is connected to the axial vibration frame, the axial vibration frame is respectively rotatably equipped with a longitudinal screw, a first through shaft driven by the first flower shaft and a second through shaft linked to the second flower shaft, the first through shaft is respectively equipped with a notched large gear and a notched large gear. The notched small gear, two symmetrically arranged non-meshing sections are provided on the first through shaft at positions corresponding to the notched large gear and the notched small gear, two external gears are installed on the second through shaft, and the two external gears are respectively adapted to be connected with the notched large gear and the notched small gear, the longitudinal screw is transmission-connected with the cooling rack, the multi-directional shaft is rotatably installed on the cooling rack, the longitudinal screw and the multi-directional shaft are both linked with the second through shaft, and the rotation connection between the multi-directional shaft and the cooling rack, the rotation connection between the longitudinal screw and the axial vibration frame, and the rotation connection between the axial screw and the pump frame are all provided with steering torsion springs.

[0010] As a preferred technical solution of the present invention, the interior of the first through shaft is fixed with a first through groove with openings at both ends and slidably connected to the first flower shaft, the interior of the second through shaft is fixed with a second through groove with openings at both ends and slidably connected to the second flower shaft, the cross-sections of the first through groove, the second through groove, the first flower shaft and the second flower shaft are all regular hexagons, a coupling gear shaft is rotatably installed on the axial vibration frame, the coupling gear shaft and the longitudinal screw are both installed with synchronous bevel gears, the two synchronous bevel gears are orthogonally meshed, the second through shaft is connected to the transmission with an elastic transmission belt, the elastic transmission belt is made of rubber and can elastically compensate for the displacement of the axial vibration frame and the cooling frame.

[0011] As a preferred technical solution of the present invention, the center angle corresponding to the tooth meshing section on the notched large gear is 170°, the center angle corresponding to the tooth meshing section on the notched small gear is 100°, and the center angles corresponding to the two non-meshing sections are both 45°. The radius of the notched large gear is the same as that of the notched small gear, and the radius of the two external gears is the same. The radius of the notched large gear is 14 to 16 times the radius of the external gear.

[0012] As a preferred technical solution of the present invention, a driving gear is installed on the multi-directional shaft, a driven gear ring meshing with the driving gear is installed on the intercooler shell, heat dissipation fin slots are evenly distributed on the intercooler shell, two symmetrically arranged corrugated sealing rings are installed between the intercooler shell and the inner frame and between the intercooler shell and the casing, and the casing and the inner frame are both rotatably connected to the corrugated sealing rings at corresponding positions.

[0013] As a preferred technical solution of the present invention, the heat dissipation belt includes a metal layer and an expansion layer arranged in sequence from the outside to the inside, the metal layer is made of aluminum, the expansion layer is made of memory alloy, and the heat dissipation cavity is arranged between the metal layer and the expansion layer.

[0014] As a preferred technical solution of the present invention, the water cooling circulation component includes a liquid outlet pump and a reflux pump installed on the casing, the liquid inlet end of the liquid outlet pump and the liquid outlet end of the reflux pump are both connected to the water cooling chamber, and the liquid outlet end of the liquid outlet pump and the liquid inlet end of the reflux pump are both connected to the heat dissipation chamber through a hose.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The driving system of the present invention drives the cooling frame to move synchronously up and down and left and right, and the reciprocating stroke and reciprocating frequency change cyclically. The intercooler shell on the cooling frame moves accordingly, causing the water-cooling liquid in the water-cooling chamber to produce a complex flow state, thereby increasing the contact frequency and contact area of ​​the water-cooling liquid with the intercooler shell, inner frame and casing wall. At the same time, the cyclic movement of the cooling frame enables the intercooler shell to be cooled at different positions and angles, and each part can fully contact with the water-cooling liquid at different temperatures, thereby reducing the temperature. In addition, the heat dissipation fins evenly distributed on the intercooler shell have more complex relative movement with the surrounding air and water-cooling liquid during the rotation and movement process, further increasing the contact area and contact time. This design solves the problems of low heat dissipation efficiency and easy leakage of coolant in the traditional cooling pump water-cooling structure, improves the heat dissipation efficiency, ensures the sealing and stability of the water-cooling system, and extends the service life of the cooling pump.

[0017] 2. The heat dissipation structure of the traditional cooling pump cannot flexibly adjust the heat dissipation area according to the size of the laser crystal and the heating area, resulting in insufficient targetedness and effectiveness of heat dissipation. The pump frame of the present invention is equipped with a distance adjustment module, which drives the clamping screw to rotate through the clamping motor to make the two extension frames move toward or away from each other, thereby realizing the adjustment of the expansion area of ​​the heat dissipation belt. The heat dissipation belt includes a metal layer and an expansion layer arranged in sequence from the outside to the inside. The metal layer is made of aluminum and has good thermal conductivity, which can quickly transfer heat; the expansion layer is made of memory alloy and will expand when heated, further increasing the contact area between the heat dissipation belt and the surrounding air, thereby improving the heat dissipation effect. The rotating connection between the roller and the extension frame is provided with an energy storage torsion spring to ensure that the heat dissipation belt is always in a tensioned state. Compared with the existing technology, the design of the distance adjustment module and the heat dissipation belt can adjust the heat dissipation range according to the actual situation of the laser crystal, thereby improving the targetedness and effectiveness of heat dissipation.

[0018] 3. The water-cooling circulation component of the present invention includes a liquid outlet pump and a reflux pump. During the operation of the cooling pump, the water-cooling liquid in the water-cooling chamber absorbs heat and its temperature rises. The liquid outlet pump extracts the high-temperature coolant and transports it to the heat dissipation chamber in the heat dissipation belt. The axial flow fan on the air-cooling rack accelerates the air flow, takes away the heat of the coolant, and reduces the temperature of the coolant. The cooled coolant then flows back to the water-cooling chamber through the reflux pump, forming a complete water-cooling cycle. Compared with the existing technology, the present water-cooling circulation component can achieve efficient circulation and heat dissipation of the coolant, ensure that the coolant in the water-cooling chamber is always at a lower temperature, thereby continuously and effectively providing cooling for the laser crystal, and improving the working performance and stability of the laser crystal.

[0019] 4. The micro-jet pump group of the present invention includes a pump casing installed at the bottom of the pump frame. Pump blades distributed in a circular array are installed on the power shaft corresponding to the inner side of the pump casing. During operation, the power shaft rotates, and the pump blades rotate accordingly to generate centrifugal force, so that the liquid is sucked into the pump casing from the inlet pipe, and after acceleration, it is transported to the ejector through the outlet pipe and ejected. Compared with the existing technology, this micro-jet pump group can achieve efficient liquid injection, providing more accurate and powerful cooling medium injection for the laser crystal, thereby effectively taking away the heat generated by the laser crystal and improving the working stability and service life of the laser crystal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a micro-jet phase change cooling pump for laser crystals according to the present invention;

[0021] Figure 2 For the present invention Figure 1 Structural diagram from another angle;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the cross-section structure;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 5 It is a schematic structural diagram of the heat dissipation belt and the extension frame of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the multi-directional shaft and cooling rack of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the local enlarged structure at B in the middle;

[0027] Figure 8 It is a structural schematic diagram of the cooling shell and the driving gear in the present invention;

[0028] Figure 9 It is a structural schematic diagram of the first through shaft and the axial vibration frame of the present invention.

[0029] In the figure: 1, pump frame; 2, housing; 3, hose; 4, multi-directional shaft; 5, intercooler shell; 6, inner frame; 7, power shaft; 8, rotor module; 9, extension frame; 10, roller; 11, energy storage torsion spring; 12, heat dissipation belt; 13, air cooling frame; 14, axial flow fan; 15, pump housing; 16, outlet pipe; 17, ejector; 18, clamping screw; 19, clamping motor; 20, axial vibration frame; 21, cooling frame; 2 2. Axial screw; 23. First flower shaft; 24. Second flower shaft; 25. Differential gear; 26. First through shaft; 27. Second through shaft; 28. Notched large gear; 29. ​​Notched small gear; 30. External gear; 31. Longitudinal screw; 32. Steering torsion spring; 33. Coupling shaft; 34. Elastic transmission belt; 35. Driving gear; 36. Driven gear ring; 37. Corrugated seal ring; 38. Liquid discharge pump; 39. Reflux pump. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 9 As shown, the present invention provides a micro-jet phase change cooling pump for laser crystals, comprising a pump frame 1 and a housing 2 connected to the pump frame 1. A micro-jet pump group is mounted on the bottom of the pump frame 1, and a drive system is mounted on the top of the pump frame 1. The drive system is connected to a cooling frame 21 that can move synchronously up and down and left and right, and a multi-directional shaft 4 that can alternately rotate forward and reverse. The reciprocating stroke and reciprocating frequency of the cooling frame 21 change cyclically. An intercooler shell 5 is rotatably mounted on the cooling frame 21, and the intercooler shell 5 is driven by the multi-directional shaft 4.

[0032] An inner frame 6 is provided on the inner side of the intercooler shell 5, and the inner frame 6 is fixedly connected to the pump frame 1. A water-cooling cavity is provided between the intercooler shell 5 and the casing 2, and the water-cooling cavity is filled with water-cooling liquid. A power shaft 7 is rotatably installed on the axis of the inner frame 6, and a rotor module 8 is installed on the power shaft 7. The drive system is driven by the power shaft 7;

[0033] The rotor module 8 is a common component in existing motors and will not be described in detail here. The rotor module 8 is used to drive the power shaft 7 to rotate;

[0034] In actual production, the power shaft 7 is equipped with an encoder and connected to a PID controller to adjust the speed of the axial screw 22 in real time to control the reciprocating frequency and stroke;

[0035] The micro-jet pump assembly includes a pump housing 15 mounted on the bottom of the pump frame 1, a group of pump blades distributed in a circumferential array are mounted on the power shaft 7 and corresponding to the inner side of the pump housing 15, an inlet pipe and an outlet pipe 16 are mounted on the pump housing 15, and the end of the outlet pipe 16 is connected to the ejector 17;

[0036] When the micro-jet phase change cooling pump for laser crystal is in operation, the driving system drives the power shaft 7 to rotate, and the pump blades on the power shaft 7 corresponding to the inner side of the pump housing 15 rotate accordingly. The pump blades are distributed in a circular array. During the rotation, centrifugal force is generated, causing the liquid to be sucked into the pump housing 15 from the inlet pipe. After the liquid is accelerated by the pump blades in the pump housing 15, it is transported to the ejector 17 through the outlet pipe 16 and finally ejected by the ejector 17. This design solves the problems of low injection efficiency and insufficient injection force of traditional cooling pumps. Compared with the existing technology, the present micro-jet pump group can achieve efficient liquid injection, provide more accurate and powerful cooling medium injection for the laser crystal, thereby effectively taking away the heat generated by the laser crystal and improving the working stability and service life of the laser crystal.

[0037] The driving system includes an axial vibration frame 20, an axial screw 22 rotatably connected to the pump frame 1, a first flower shaft 23 and a second flower shaft 24;

[0038] Differential gears 25 are installed on the first flower shaft 23 and the power shaft 7. The two differential gears 25 are meshed with each other. A second toothed belt is connected between the second flower shaft 24 and the axial screw 22.

[0039] The axial screw 22 is in transmission connection with the axial vibration frame 20, on which the longitudinal screw 31, the first through shaft 26 driven by the first flower shaft 23, and the second through shaft 27 linked to the second flower shaft 24 are rotatably mounted.

[0040] The first through-shaft 26 is internally provided with a first through-slot with openings at both ends and slidably connected to the first flower shaft 23. The second through-shaft 27 is internally provided with a second through-slot with openings at both ends and slidably connected to the second flower shaft 24. The cross-sections of the first through-slot, the second through-slot, the first flower shaft 23, and the second flower shaft 24 are all regular hexagons.

[0041] A notched large gear 28 and a notched small gear 29 are mounted on the first through shaft 26 , and two symmetrically arranged non-meshing sections are provided on the first through shaft 26 at positions corresponding to the notched large gear 28 and the notched small gear 29 ;

[0042] The center angle corresponding to the tooth meshing section on the notched large gear 28 is 170°, the center angle corresponding to the tooth meshing section on the notched small gear 29 is 100°, and the center angles corresponding to the two non-meshing sections are both 45°;

[0043] Two external gears 30 are mounted on the second through shaft 27, and the two external gears 30 are respectively adapted to be connected with the notched large gear 28 and the notched small gear 29;

[0044] The radius of the notched large gear 28 and the notched small gear 29 are the same, and the radius of the two external gears 30 are the same, and the radius of the notched large gear 28 is 15 times the radius of the external gear 30;

[0045] The longitudinal screw 31 is in transmission connection with the cooling rack 21, and the multi-directional shaft 4 is rotatably mounted on the cooling rack 21. The longitudinal screw 31 and the multi-directional shaft 4 are both linked with the second through shaft 27;

[0046] A gear shaft 33 is rotatably mounted on the axial vibration frame 20. Synchronous bevel gears are mounted on the gear shaft 33 and the longitudinal screw 31. The two synchronous bevel gears are orthogonally meshed. An elastic transmission belt 34 is connected to the second through shaft 27. The elastic transmission belt 34 is made of rubber and can elastically compensate for the displacement of the axial vibration frame 20 and the cooling frame 21.

[0047] The inner wall of the elastic transmission belt 34 is evenly distributed with transmission friction lines;

[0048] The drive system drives the cooling rack 21 to move synchronously up and down and left and right, and the reciprocating stroke and reciprocating frequency change cyclically. The intercooler shell 5 rotatably mounted on the cooling rack 21 moves accordingly, and the water-cooling liquid filling the water-cooling cavity between the intercooler shell 5 and the casing 2 is also disturbed. When the cooling rack 21 moves up and down, the water-cooling liquid will generate a vertical flow in the water-cooling cavity. When it moves left and right, the water-cooling liquid will generate a horizontal flow. This complex flow state increases the contact frequency and contact area between the water-cooling liquid and the intercooler shell 5, inner rack 6, and the wall surface of the casing 2.

[0049] The cyclical motion of the cooling rack 21 allows the intercooler shell 5 to be cooled at different positions and angles. During the up, down, left, and right movement, all parts of the intercooler shell 5 can fully contact the water-cooling liquid at different temperatures. For example, when the temperature of a certain part of the intercooler shell 5 is high, as the cooling rack 21 moves, this part will quickly contact the water-cooling liquid at a lower temperature, thereby reducing the temperature.

[0050] The intercooler shell 5 is evenly distributed with heat dissipation fin slots. The movement of the cooling rack 21 drives the intercooler shell 5 to rotate and move. During this process, the relative movement of the heat dissipation fin slots and the surrounding air and water-cooling liquid becomes more complicated. When the intercooler shell 5 rotates, the heat dissipation fin slots can continuously cut the air and water-cooling liquid, increasing the contact area and contact time between the air and water-cooling liquid and the heat dissipation fin slots.

[0051] The movement of the cooling rack 21 makes the temperature distribution of the intercooler shell 5 more uniform, reduces thermal stress, and improves heat exchange efficiency. The operating temperature of the intercooler shell 5 is effectively controlled. The low and uniform temperature environment reduces damage to the intercooler shell 5 and related components due to factors such as thermal expansion and thermal fatigue.

[0052] Steering torsion springs 32 are provided at the rotational connection between the multidirectional shaft 4 and the cooling frame 21, the rotational connection between the longitudinal screw 31 and the axial vibration frame 20, and the rotational connection between the axial screw 22 and the pump frame 1.

[0053] A driving gear 35 is mounted on the multidirectional shaft 4, and a driven ring gear 36 meshing with the driving gear 35 is mounted on the intercooler housing 5. Heat dissipation fin slots are evenly distributed on the intercooler housing 5. Two symmetrically arranged corrugated sealing rings 37 are installed between the intercooler housing 5 and the inner frame 6, and between the intercooler housing 5 and the casing 2. The casing 2 and the inner frame 6 are both rotatably connected to the corrugated sealing rings 37 at corresponding positions.

[0054] When the driving system drives the multidirectional shaft 4 to rotate, the driving gear 35 on the multidirectional shaft 4 rotates accordingly, and the driving gear 35 meshes with the driven ring gear 36 on the intercooler shell 5, thereby driving the intercooler shell 5 to rotate. The intercooler shell 5 is evenly distributed with heat dissipation fin grooves. During the rotation process, the heat dissipation fin grooves can increase the contact area with the air and accelerate the heat dissipation speed. At the same time, two symmetrically arranged corrugated sealing rings 37 are installed between the intercooler shell 5 and the inner frame 6 and between the intercooler shell 5 and the casing 2. The casing 2 and the inner frame 6 are rotatably connected to the corrugated sealing rings 37 at corresponding positions. These sealing rings can effectively prevent the water-cooling liquid in the water-cooling chamber from leaking, thereby ensuring the normal operation of the water cooling system. This design solves the problems of low heat dissipation efficiency and easy leakage of coolant in the traditional cooling pump water-cooling structure. Compared with the existing technology, this design improves the heat dissipation efficiency through the rotation of the intercooler shell 5 and the setting of the heat dissipation fin grooves. At the same time, the use of the corrugated sealing ring 37 ensures the sealing and stability of the water cooling system, thereby extending the service life of the cooling pump.

[0055] A pitch-adjusting module is installed on the pump frame 1, and the pitch-adjusting module is transmission-connected to two symmetrically arranged and spacing-adjustable extension frames 9. Rollers 10 are rotatably installed on the two extension frames 9, and energy storage torsion springs 11 are provided at the rotating connection between the rollers 10 and the extension frames 9. A heat dissipation belt 12 is wound between the two rollers 10, and a heat dissipation cavity is provided in the heat dissipation belt 12. A water-cooling circulation component is provided between the heat dissipation cavity and the water-cooling cavity. An air-cooling frame 13 is installed on the pump frame 1 and adjacent to the heat dissipation belt 12, and axial fans 14 are evenly distributed on the air-cooling frame 13.

[0056] The pitch adjustment module includes two clamping screws 18 rotatably connected to the pump frame 1. The two clamping screws 18 are linked by a first toothed belt. A clamping motor 19 is installed on the pump frame 1. The output shaft end of the clamping motor 19 is fixedly connected to a clamping screw 18. The clamping screw 18 is respectively provided with a positive thread segment and a negative thread segment. The positive thread segment and the negative thread segment are respectively connected to the two extension frames 9 for transmission.

[0057] The heat dissipation belt 12 includes a metal layer and an expansion layer arranged in sequence from the outside to the inside. The metal layer is made of aluminum, the expansion layer is made of memory alloy, and the heat dissipation cavity is arranged between the metal layer and the expansion layer.

[0058] When the spacing of the heat dissipation belt 12 needs to be adjusted, the clamping motor 19 is started, and the clamping motor 19 drives the clamping screw 18 fixedly connected thereto to rotate. Since the two clamping screws 18 are linked by the first toothed belt, the two clamping screws 18 will rotate synchronously. The clamping screws 18 are respectively provided with a positive thread segment and a negative thread segment, and the positive thread segment and the negative thread segment are respectively connected to the two extension frames 9 in transmission. Therefore, when the clamping screw 18 rotates, the two extension frames 9 will move toward or away from each other, thereby adjusting the expansion area of ​​the heat dissipation belt 12. The heat dissipation belt 12 includes a metal layer and an expansion layer arranged in sequence from the outside to the inside. The metal layer is made of aluminum and has good thermal conductivity, which can quickly transfer heat out.

[0059] The expansion layer is made of memory alloy. When the heat dissipation belt 12 is heated, the expansion layer actively deforms to increase the heat dissipation area, further increasing the contact area between the heat dissipation belt 12 and the surrounding air, thereby improving the heat dissipation effect. An energy storage torsion spring 11 is provided at the rotational connection between the roller 10 and the stent 9. During the adjustment of the spacing of the heat dissipation belt 12, the energy storage torsion spring 11 will store or release energy to ensure that the heat dissipation belt 12 is always in a tensioned state. This design solves the problem that the traditional cooling pump heat dissipation structure cannot flexibly adjust the heat dissipation area according to the size and heating area of ​​the laser crystal. Compared with the existing technology, the design of the adjustable distance module and the heat dissipation belt 12 can adjust the heat dissipation range according to the actual situation of the laser crystal, thereby improving the pertinence and effectiveness of heat dissipation. At the same time, the special structure of the heat dissipation belt 12 further enhances the heat dissipation effect.

[0060] The water cooling circulation component includes a liquid outlet pump 38 and a reflux pump 39 installed on the casing 2. The liquid inlet end of the liquid outlet pump 38 and the liquid outlet end of the reflux pump 39 are both connected to the water cooling chamber, and the liquid outlet end of the liquid outlet pump 38 and the liquid inlet end of the reflux pump 39 are both connected to the heat dissipation chamber through a hose 3.

[0061] During the operation of the cooling pump, the water-cooling liquid in the water-cooling chamber absorbs the heat generated by the laser crystal and its temperature rises. At this time, the liquid outlet pump 38 is started to extract the high-temperature coolant in the water-cooling chamber and transport it to the heat dissipation chamber in the heat dissipation belt 12 through the hose 3. The heat dissipation chamber in the heat dissipation belt 12 cooperates with the axial flow fan 14 on the air-cooling frame 13. The axial flow fan 14 accelerates the air flow, takes away the heat of the coolant in the heat dissipation belt 12, and reduces the temperature of the coolant. The cooled coolant then passes through the reflux pump 39 and flows back to the water-cooling chamber through the hose 3, forming a complete water-cooling cycle. This design solves the problem of untimely coolant heat dissipation and poor cooling effect in the traditional cooling pump water cooling system. Compared with the existing technology, the water-cooling circulation component can realize efficient circulation and heat dissipation of the coolant, ensure that the coolant in the water-cooling chamber is always at a lower temperature, thereby continuously and effectively providing cooling for the laser crystal, and improving the working performance and stability of the laser crystal;

[0062] The working principle and use process of the present invention:

[0063] When the micro-jet phase change cooling pump for laser crystals of the present invention is working, the drive system drives the power shaft 7 to rotate, and the pump blades inside the pump housing 15 on the power shaft 7 rotate accordingly to generate centrifugal force, so that liquid is sucked into the pump housing 15 from the inlet pipe, and after being accelerated by the pump blades, it is ejected by the ejector 17 through the outlet pipe 16 to provide cooling medium for the laser crystal; the power shaft 7 rotates to drive the first flower shaft 23 through the differential gear 25, and the second flower shaft 24 and the axial screw 22 are driven by the second toothed belt to move the axial vibration frame 20, and the first flower shaft 23 drives the first through shaft 26, The second flower shaft 24 is linked to the second through shaft 27, thereby driving the cooling rack 21 to synchronously move up and down and left and right. The reciprocating stroke and frequency change cyclically, and the intercooler shell 5 on the cooling rack 21 moves accordingly, causing the water-cooling liquid in the water-cooling chamber to produce a complex flow, increasing contact with the wall surface of the intercooler shell 5. Various parts of the intercooler shell 5 can fully contact the water-cooling liquid at different temperatures to reduce the temperature. When the multi-directional shaft 4 rotates, the intercooler shell 5 is driven to rotate through the driving gear 35 and the driven ring gear 36. The heat dissipation fin groove accelerates heat dissipation, and the corrugated seal ring 37 prevents water-cooling liquid leakage.

[0064] When the heat dissipation area or heat dissipation efficiency of the heat dissipation belt 12 needs to be adjusted, the clamping motor 19 is started to drive the clamping screw 18 to rotate. The two clamping screws 18 are synchronously rotated through the first toothed belt. The positive and negative threaded sections on them make the two extension frames 9 move towards or away from each other to adjust the expansion area of ​​the heat dissipation belt 12. The metal layer of the heat dissipation belt 12 conducts heat, and the expansion layer expands due to heat to increase the heat dissipation area. The energy storage torsion spring 11 ensures that the heat dissipation belt 12 is tensioned.

[0065] During operation, when the water-cooling liquid in the water-cooling chamber heats up, the outlet pump 38 pumps the high-temperature coolant into the heat dissipation chamber of the heat dissipation belt 12. The axial flow fan 14 accelerates the air flow to take away the heat. The cooled coolant flows back to the water-cooling chamber through the reflux pump 39, forming a complete water-cooling cycle to continuously cool the laser crystal.

[0066] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0067] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A micro-jet phase change cooling pump for laser crystals, comprising a pump frame (1) and a housing (2) connected to the pump frame (1), characterized in that: A micro-jet pump group is installed at the bottom of the pump frame (1), and a driving system is installed at the top of the pump frame (1). The driving system is connected to a cooling frame (21) that can move synchronously up and down and left and right and a multi-directional shaft (4) that can alternately rotate forward and reverse. The reciprocating stroke and reciprocating frequency of the cooling frame (21) change cyclically. An intercooler (5) is rotatably installed on the cooling frame (21). The intercooler (5) is driven by the multi-directional shaft (4). An inner frame (6) is provided on the inner side of the intercooler (5). The inner frame (6) is fixedly connected to the pump frame (1). A water-cooling cavity is provided between the intercooler (5) and the casing (2), and the interior of the water-cooling cavity is filled with water-cooling liquid. A power shaft (7) is rotatably installed at the axis position of the inner frame (6). The power shaft (7 ) is provided with a rotor module (8), the driving system is driven by a power shaft (7), a pitch adjustment module is provided on the pump frame (1), and the pitch adjustment module is connected to two symmetrically arranged and adjustable-pitch extension frames (9) in a transmission connection, and a roller (10) is rotatably provided on the two extension frames (9), and an energy storage torsion spring (11) is provided at the rotation connection between the roller (10) and the extension frame (9), a heat dissipation belt (12) is wound between the two rollers (10), a heat dissipation cavity is provided in the heat dissipation belt (12), and a water cooling circulation component is provided between the heat dissipation cavity and the water cooling cavity, and an air cooling frame (13) is provided on the pump frame (1) and adjacent to the heat dissipation belt (12), and axial flow fans (14) are evenly distributed on the air cooling frame (13).

2. The microjet phase change cooling pump for laser crystals according to claim 1, characterized in that: The micro-jet pump assembly comprises a pump housing (15) mounted on the bottom of a pump frame (1), a group of pump blades distributed in a circumferential array mounted on a power shaft (7) and corresponding to the inner side of the pump housing (15), an inlet pipe and an outlet pipe (16) are respectively mounted on the pump housing (15), and an ejector (17) is connected to the end of the outlet pipe (16).

3. The micro-jet phase change cooling pump for laser crystals according to claim 1, characterized in that: The pitch adjustment module includes two clamping screws (18) rotatably connected to the pump frame (1), the two clamping screws (18) are linked by a first toothed belt, a clamping motor (19) is installed on the pump frame (1), the output shaft end of the clamping motor (19) is fixedly connected to one of the clamping screws (18), and the clamping screw (18) is respectively provided with a positive thread segment and a negative thread segment, and the positive thread segment and the negative thread segment are respectively connected to the two extension frames (9) in a transmission manner.

4. The micro-jet phase change cooling pump for laser crystals according to claim 1, characterized in that: The driving system comprises an axial vibration frame (20), an axial screw (22) rotatably connected to the pump frame (1), a first flower shaft (23) and a second flower shaft (24), the first flower shaft (23) and the power shaft (7) are both equipped with differential gears (25), the two differential gears (25) are meshed with each other, a second toothed belt is connected between the second flower shaft (24) and the axial screw (22), the axial screw (22) is connected to the axial vibration frame (20), the longitudinal screw (31), a first through shaft (26) driven by the first flower shaft (23) and a second through shaft (27) linked to the second flower shaft (24) are rotatably installed on the axial vibration frame (20), a notched large gear (28) and a notched small gear (29) are respectively installed on the first through shaft (26), the Two symmetrically arranged non-meshing sections are provided on the first through shaft (26) at positions corresponding to the notched large gear (28) and the notched small gear (29). Two external gears (30) are installed on the second through shaft (27). The two external gears (30) are respectively adapted to be connected to the notched large gear (28) and the notched small gear (29). The longitudinal screw (31) is transmission-connected to the cooling rack (21). The multidirectional shaft (4) is rotationally mounted on the cooling rack (21). The longitudinal screw (31) and the multidirectional shaft (4) are both linked to the second through shaft (27). Steering torsion springs (32) are provided at the rotational connection between the multidirectional shaft (4) and the cooling rack (21), the rotational connection between the longitudinal screw (31) and the axial vibration frame (20), and the rotational connection between the axial screw (22) and the pump frame (1).

5. The micro-jet phase change cooling pump for laser crystals according to claim 4, characterized in that: The first through-shaft (26) is fixedly provided with a first through-slot with openings at both ends and slidably connected to the first flower shaft (23). The second through-shaft (27) is fixedly provided with a second through-slot with openings at both ends and slidably connected to the second flower shaft (24). The cross-sections of the first through-slot, the second through-slot, the first flower shaft (23) and the second flower shaft (24) are all regular hexagons. A coupling gear shaft (33) is rotatably mounted on the axial vibration frame (20). Synchronous bevel gears are mounted on the coupling gear shaft (33) and the longitudinal screw (31). The two synchronous bevel gears are orthogonally meshed. An elastic transmission belt (34) is connected to the second through-shaft (27) for transmission. The elastic transmission belt (34) is made of rubber and can elastically compensate for the displacement of the axial vibration frame (20) and the cooling frame (21).

6. The micro-jet phase change cooling pump for laser crystals according to claim 4, characterized in that: The center angle corresponding to the tooth meshing section on the notched large gear (28) is 170°, the center angle corresponding to the tooth meshing section on the notched small gear (29) is 100°, and the center angles corresponding to the two non-meshing sections are both 45°. The radius of the notched large gear (28) and the notched small gear (29) are the same, and the radius of the two external gears (30) are the same. The radius of the notched large gear (28) is 14 to 16 times the radius of the external gear (30).

7. The micro-jet phase change cooling pump for laser crystals according to claim 1, characterized in that: A driving gear (35) is mounted on the multidirectional shaft (4), a driven gear ring (36) meshing with the driving gear (35) is mounted on the intercooler shell (5), heat dissipation fin grooves are uniformly distributed on the intercooler shell (5), two symmetrically arranged corrugated sealing rings (37) are mounted between the intercooler shell (5) and the inner frame (6) and between the intercooler shell (5) and the casing (2), and the casing (2) and the inner frame (6) are both rotatably connected to the corrugated sealing rings (37) at corresponding positions.

8. The microjet phase change cooling pump for laser crystals according to claim 1, characterized in that: The heat dissipation belt (12) comprises a metal layer and an expansion layer arranged in sequence from the outside to the inside, the metal layer is made of aluminum, the expansion layer is made of memory alloy, and the heat dissipation cavity is arranged between the metal layer and the expansion layer.

9. The micro-jet phase change cooling pump for laser crystals according to claim 1, characterized in that: The water cooling circulation assembly comprises a liquid outlet pump (38) and a reflux pump (39) mounted on the housing (2); the liquid inlet end of the liquid outlet pump (38) and the liquid outlet end of the reflux pump (39) are both connected to the water cooling chamber; and the liquid outlet end of the liquid outlet pump (38) and the liquid inlet end of the reflux pump (39) are both connected to the heat dissipation chamber via a hose (3).

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