Radiating device of laser direct-cooling liquid-cooling unit

Abstract

The invention discloses a laser direct-cooling liquid-cooling unit heat dissipation device, which belongs to the technical field of laser heat dissipation, and comprises a heat dissipation shell provided with a laser heating element, the laser heating element is provided with a cooling circulation assembly, the cooling circulation assembly comprises a spiral condenser pipe, and the laser direct-cooling liquid-cooling unit heat dissipation device further comprises a cylinder fixedly arranged in the heat dissipation shell; according to the laser direct-cooling liquid-cooling unit heat dissipation device, when a spiral condensation pipe moves downwards along with a mounting plate, a gear is meshed with a vertical plate tooth groove to drive a driving disc to rotate, a sliding rod is driven to contract towards the center, and a locking block wraps the pipeline connecting position in the circumferential direction; the pre-tightening force generated by compression of the spring further strengthens the sealing pressure, is matched with the stress characteristic of a spiral flow channel of the spiral condenser pipe, thoroughly solves the problems of deviation, vibration loosening and the like of manual locking, structurally ensures that cooling liquid circulation is free of leakage, avoids the faults of laser short circuit, metal part corrosion, sudden cooling efficiency drop and the like caused by leakage, and improves the service life of the laser. And long-term stable operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser heat dissipation, and particularly relates to a laser direct cooling liquid cooling unit heat dissipation device. BACKGROUND

[0002] High-power lasers generate a large amount of heat during operation, and the temperature control of the core heat generating elements (such as laser crystals, pump sources, resonant cavities, etc.) is crucial. Excessive temperature can seriously affect the output power stability, beam quality, service life of the laser, and even cause permanent damage to the device. Therefore, an efficient and reliable heat dissipation system is one of the core technologies to ensure the stable operation of the laser.

[0003] At present, a typical laser direct cooling liquid cooling unit usually includes a cooling liquid circulating pump, a heat exchanger (such as a condenser), a liquid storage tank, a control unit, and a cooling liquid pipeline system connected to the heat generating elements of the laser. In order to flexibly adapt to heat generating elements of different shapes and positions, spiral condensing pipes (also known as flexible coils or serpentine pipes) are often used as end heat dissipation components close to or directly wrapped around heat generating elements (such as laser rods, semiconductor bar cooling blocks, etc.) due to their good flexibility and plasticity. The spiral condensing pipe needs to be connected to the rigid or semi-rigid inlet / return pipe for conveying cooling liquid of the liquid cooling unit main body through quick-change joints or flanges. In existing laser direct cooling liquid cooling units, the connection between the spiral condensing pipe and the cooling liquid main pipeline (inlet / return pipe) generally has key problems such as manual operation dependence, complicated steps, large influence of human factors and environment on sealing reliability, and risk of loosening and leakage during long-term operation. These problems directly affect the installation and maintenance efficiency, operation stability and safety of the laser heat dissipation system. SUMMARY

[0004] The purpose of the present application is to solve the problem of high risk of leakage of the spiral condensing pipe and the cooling liquid main pipeline during long-term bending use in the prior art, and to provide a laser direct cooling liquid cooling unit heat dissipation device.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: A laser direct cooling liquid cooling unit heat dissipation device, comprising a heat dissipation shell provided with a heat generating element of a laser, a cooling circulation assembly being arranged on the heat generating element of the laser, the cooling circulation assembly comprising a spiral condensing pipe, further comprising: a cylinder fixedly arranged in the heat dissipation shell, a plurality of slide rods being slidably connected in the cylinder, a locking block being slidably connected on each of the slide rods, a driving disc being rotatably connected in the cylinder, a plurality of arc-shaped holes being formed in the driving disc, and a driving rod corresponding to the arc-shaped hole being fixedly connected on each of the slide rods.

[0006] Preferably, the cooling circulating assembly comprises a cooling liquid storage tank fixedly installed outside a heat dissipation shell, a motor is fixedly installed on the top wall of the heat dissipation shell, and the output end of the motor is fixedly connected with a screw rod.

[0007] Preferably, a mounting plate is threadedly connected to the screw rod, guide rods are fixedly and symmetrically connected to the mounting plate, a condenser is fixedly installed on the mounting plate, and a circulating pump is fixedly installed on the bottom wall of the heat dissipation shell.

[0008] Preferably, an extraction pipe is fixedly and communicatively connected between the output end of the circulating pump and the storage tank, an inlet pipe is fixedly and communicatively connected between the other end of the circulating pump and the condenser, and a corrugated sleeve is sleeved outside the inlet pipe.

[0009] Preferably, one end of the condenser is fixedly and communicatively connected with a mounting pipeline, the mounting pipeline is fixedly and communicatively connected with a spiral condensing pipe, one end of the spiral condensing pipe away from the mounting pipeline is in communication with the storage tank, and the mounting pipeline passes through the mounting plate and is arranged in the cylinder.

[0010] Preferably, a first spring is sleeved on each slide rod, the two ends of the first spring are fixedly connected with the cylinder and the slide rod respectively, a supporting ring is fixedly connected to the bottom of one side of the mounting plate, and the cylinder is fixedly connected in the supporting ring.

[0011] Preferably, an extension rod is fixedly connected to one side of the driving disc, a gear is fixedly connected to the extension rod, a vertical plate is fixedly connected to the bottom wall of the heat dissipation shell, and a tooth groove that is mutually engaged with the gear is formed in the upper section of the vertical plate.

[0012] Preferably, a flushing tank is fixedly installed on the top wall of the heat dissipation shell, a piston plate is fixedly connected in the flushing tank, a circular groove is formed in the piston plate, and a silica gel ball block is slidably connected in the circular groove.

[0013] Preferably, a hollow rod is fixedly connected to the bottom of the silica gel ball block, an inlet hole is formed in the side of the hollow rod close to the bottom of the piston plate, and a spiral hose is fixedly and communicatively connected between the bottom of the hollow rod and the spiral condensing pipe.

[0014] Preferably, one end of the hollow rod away from the piston plate penetrates through and is slidably connected with the flushing tank, a fixing block is fixedly connected to the hollow rod, a second spring is sleeved on the hollow rod, and the two ends of the second spring are fixedly connected with the fixing block and the flushing tank respectively.

[0015] Compared with the prior art, the present application provides a laser direct cooling liquid cooling unit heat dissipation device, which has the following beneficial effects: 1. The laser direct cooling liquid cooling unit heat dissipation device, when the spiral condenser pipe moves downward with the mounting plate, the gear is engaged with the vertical plate tooth slot to drive the driving disc to rotate, the sliding rod is retracted to the center, and the locking block is wrapped around the pipeline connection; the pre-tightening force generated by the spring compression further strengthens the sealing pressure, adapts to the stress characteristics of the spiral flow channel of the spiral condenser pipe, completely solves the problems of deviation and vibration loosening of manual locking, and the design ensures that the cooling liquid circulation is leak-free, avoids faults such as laser short circuit, metal part corrosion and sudden drop of heat dissipation efficiency caused by leakage, and guarantees long-term stable operation of the equipment.

[0016] 2. The laser direct cooling liquid cooling unit heat dissipation device, by starting the circulating pump to draw the cooling liquid from the storage tank through the suction pipe, the cooling liquid is transported into the condenser through the inlet pipe, then into the installation pipeline, then flows into the spiral condenser pipe, and finally returns to the storage tank, forming a closed loop for continuous heat dissipation operation of the laser heating element; it should be noted that the cooling circulation assembly can adopt the existing compressor, cold plate, control module, filter and other parts to dissipate heat from the laser heating element.

[0017] 3. The laser direct cooling liquid cooling unit heat dissipation device, through the motor control process of the mounting plate moving upward, the gap between the spiral condenser pipes gradually increases, at the same time, when the mounting plate moves upward and touches the hollow rod, the hollow rod automatically drives the silica gel ball block to move upward, at the same time the inlet hole on the hollow rod enters the upper part of the piston plate, then the flushing liquid in the flushing tank enters the hollow rod through the inlet hole, then enters the spiral condenser pipe through the spiral hose, flushes the impurities deposited in the interior, makes the impurities flushed into the storage tank, and realizes flushing, which can directly eliminate the risk of blockage, restore the designed heat dissipation performance, prolong the service life of the pipeline, and avoid laser downtime or hardware damage caused by heat dissipation failure. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front structure diagram of a laser direct cooling liquid cooling unit heat dissipation device proposed by the application; Figure 2 It is a side structure diagram of a laser direct cooling liquid cooling unit heat dissipation device proposed by the application; Figure 3 It is a front structure diagram of a laser direct cooling liquid cooling unit heat dissipation device proposed by the application; Figure 4 It is a structure diagram of a cooling circulation assembly in a laser direct cooling liquid cooling unit heat dissipation device proposed by the application; Figure 5 It is a structure diagram of the inside of a flushing tank in a laser direct cooling liquid cooling unit heat dissipation device proposed by the application; Figure 6The present invention proposes Figure 5 Schematic diagram of the structure of part A; Figure 7 The present invention proposes Figure 5 Schematic diagram of the structure of part B; Figure 8 This is a structural diagram of the cylinder and installation pipeline in a heat dissipation device of a laser direct cooling liquid cooling unit proposed by the present invention; Figure 9 This is a structural schematic diagram of a drive disk and arc-shaped holes in a heat dissipation device of a laser direct-cooling liquid cooling unit proposed by the present invention.

[0019] In the figure: 1. heat dissipation shell; 2. laser heating element; 3. cooling circulation assembly; 301. storage box; 302. condenser; 303. circulation pump; 304. extraction pipe; 305. inlet pipe; 306. corrugated sleeve; 307. installation pipeline; 4. spiral condenser; 5. cylinder; 6. slide rod; 7. locking block; 8. drive disk; 9. arc hole; 10. drive rod; 11. motor; 12. screw; 13. mounting plate; 14. guide rod; 15. first spring; 16. support ring; 17. extension rod; 18. gear; 19. vertical plate; 20. tooth groove; 21. flushing tank; 22. piston plate; 23. circular groove; 24. silicone ball block; 25. hollow rod; 26. inlet hole; 27. spiral hose; 28. fixing block; 29. ​​second spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] Example 1: Reference Figures 1-9The application discloses a laser direct cooling liquid cooling unit heat dissipation device, which comprises a heat dissipation shell 1 provided with a laser heating element 2, and a cooling circulation assembly 3 arranged on the laser heating element 2, wherein the cooling circulation assembly 3 comprises a spiral condenser pipe 4, and further comprises a cylinder 5 fixedly arranged in the heat dissipation shell 1, a plurality of slide rods 6 slidably connected in the cylinder 5, a locking block 7 slidably connected on each slide rod 6, and a driving disc 8 rotatably connected in the cylinder 5, wherein a plurality of arc-shaped holes 9 are formed in the driving disc 8, and a driving rod 10 corresponding to each arc-shaped hole 9 is fixedly connected on each slide rod 6.

[0023] When the laser heating element 2 is cooled and radiated, the driving rod 10 is driven to slide along the arc-shaped hole 9 by rotating the driving disc 8, so that the plurality of slide rods 6 are simultaneously moved to the center of the cylinder 5, and the locking block 7 is moved until abutting against the spiral condenser pipe 4 to realize locking of the outer wall of the spiral condenser pipe 4, and then the laser heating element 2 can be continuously radiated by the cooling circulation assembly 3, and in the process, the cooling liquid in the spiral condenser pipe 4 can be stably circulated without leakage, the automatic locking design can ensure that the spiral condenser pipe 4 and the cooling liquid pipeline can be reliably sealed when the laser heating element 2 is sleeved, and the leakage risk in the cooling liquid circulation process is fundamentally eliminated, the long-term operation reliability and safety of the heat dissipation system are significantly improved, short circuit and corrosion are avoided, the installation and maintenance operation is simplified, the equipment failure, shutdown loss and maintenance cost caused by leakage are reduced, and the continuous and stable high-performance output of the laser is ensured.

[0024] Embodiment two: refer to Figures 2-7 The cooling circulation assembly 3 further comprises a cooling liquid storage tank 301 fixedly installed outside the heat dissipation shell 1, a motor 11 fixedly installed on the top wall of the heat dissipation shell 1, and a screw rod 12 fixedly connected to the output end of the motor 11.

[0025] A mounting plate 13 is threadedly connected to the screw rod 12, symmetrical guide rods 14 are fixedly connected to the mounting plate 13, a condenser 302 is fixedly installed on the mounting plate 13, and a circulating pump 303 is fixedly installed on the bottom wall of the heat dissipation shell 1. When the spiral condenser pipe 4 needs to be sleeved on the laser heating element 2 for heat dissipation, the motor 11 is started to control the rotation of the screw rod 12, the mounting plate 13 is stably moved downward on the screw rod 12 under the guidance of the two guide rods 14, and then the spiral condenser pipe 4 is sleeved on the laser heating element 2, and then the heat dissipation operation can be realized by the cooling circulation assembly 3.

[0026] An extraction pipe 304 is fixedly communicated between the output end of the circulating pump 303 and the storage tank 301, an inlet pipe 305 is fixedly communicated between the other end of the circulating pump 303 and the condenser 302, and a corrugated sleeve 306 is sleeved outside the inlet pipe 305 to prevent the inlet pipe 305 from winding when moving up and down.

[0027] One end of the condenser 302 is fixedly communicated with the installation pipeline 307, the installation pipeline 307 is fixedly communicated with the spiral condensing pipe 4, the end of the spiral condensing pipe 4 away from the installation pipeline 307 is communicated with the storage tank 301, and the installation pipeline 307 passes through the mounting plate 13 and is arranged in the cylinder 5. In the application, the circulating pump 303 is started to draw the cooling liquid from the storage tank 301 through the suction pipe 304, the cooling liquid is transported into the condenser 302 through the inlet pipe 305, then into the installation pipeline 307, then flows into the spiral condensing pipe 4, and finally flows back to the storage tank 301, so that a closed loop is formed, and the laser heater element 2 is continuously cooled; it should be noted that the cooling circulating assembly 3 can adopt the compressor, the cold plate, the control module, the filter and other parts in the prior art to cool the laser heater element 2. The multiple locking blocks 7 simultaneously move to tightly wrap the connection between the installation pipeline 307 and the spiral condensing pipe 4, locking is realized, cooling liquid leakage is prevented, stable circulation of the cooling liquid is ensured, and continuous and stable cooling of the laser heater element 2 is ensured.

[0028] Embodiment three: refer to Figures 3-9 The embodiment is basically the same as the first embodiment, and further, the first spring 15 is sleeved on each slide rod 6, the two ends of the first spring 15 are fixedly connected with the cylinder 5 and the slide rod 6 respectively, and the supporting ring 16 is fixedly connected to the bottom of one side of the mounting plate 13.

[0029] The extension rod 17 is fixedly connected to one side of the driving disc 8, the gear 18 is fixedly connected to the extension rod 17, the vertical plate 19 is fixedly connected to the bottom wall of the heat dissipation shell 1, and the tooth groove 20 that is meshed with the gear 18 is formed in the upper section of the vertical plate 19.

[0030] In the application, the first spring 15 is compressed while the multiple slide rods 6 slide, the locking effect of the locking block 7 on the connection between the installation pipeline 307 and the spiral condensing pipe 4 is increased, the supporting ring 16 can stably support the cylinder 5, and the driving disc 8 can stably rotate in the cylinder 5; during the process that the mounting plate 13 is driven downward by the rotation of the screw rod 12, that is, the process that the spiral condensing pipe 4 is driven downward, the connection between the spiral condensing pipe 4 and the installation pipeline 307 is bent, the mounting plate 13 drives the cylinder 5 downward, the gear 18 is continuously meshed at the tooth groove 20 in the upper section of the vertical plate 19, the gear 18 rotates, the extension rod 17 rotates, the driving disc 8 rotates, and the multiple locking blocks 7 realize locking and wrapping of the connection, so that the cooling liquid leakage is prevented.

[0031] Embodiment four: refer to Figures 2-6Further, a flushing tank 21 is fixedly installed on the top wall of the heat dissipation shell 1, a piston plate 22 is fixedly connected in the flushing tank 21, a circular groove 23 is formed in the piston plate 22, and a silica gel ball block 24 is slidably connected in the circular groove 23.

[0032] The bottom of the silica gel ball block 24 is fixedly connected with a hollow rod 25, one side of the hollow rod 25 close to the bottom of the piston plate 22 is provided with an entering hole 26, and the bottom of the hollow rod 25 is fixedly communicated with a spiral hose 27 between the spiral condenser pipe 4.

[0033] The end of the hollow rod 25 away from the piston plate 22 penetrates through the flushing tank 21 and is slidably connected with the flushing tank 21, a fixed block 28 is fixedly connected on the hollow rod 25, and a second spring 29 is sleeved on the hollow rod 25 and fixedly connected at both ends with the fixed block 28 and the flushing tank 21.

[0034] In the present application, since the cooling liquid circulates for a long time, mineral substances, metal oxide particles or chemical additive precipitates are separated out. In addition, due to the dense bending structure of the spiral condenser pipe 4, deposition is easily formed on the inner wall of the pipe, which leads to flow reduction and finally causes blockage and leakage, affecting the heat dissipation of the laser heating element 2. When the spiral condenser pipe 4 needs to be flushed, the gap between the spiral condenser pipes 4 gradually increases during the upward movement of the mounting plate 13 controlled by the motor 11, at the same time, when the mounting plate 13 moves upward and touches the hollow rod 25, the hollow rod 25 is automatically driven to move upward with the silica gel ball block 24, at the same time, the entering hole 26 on the hollow rod 25 enters the upper part of the piston plate 22, then the flushing liquid in the flushing tank 21 enters the hollow rod 25 through the entering hole 26, and then enters the spiral condenser pipe 4 through the spiral hose 27, so that the impurities deposited in the spiral condenser pipe 4 are flushed and discharged into the storage tank 301, so that the flushing is realized, the risk of blockage is directly eliminated, the designed heat dissipation performance is restored, the service life of the pipeline is prolonged, and the laser machine downtime or hardware damage caused by heat dissipation failure is avoided. After the flushing is completed, the mounting plate 13 is controlled to move downward by the motor 11 and is separated from the hollow rod 25, the hollow rod 25 is automatically reset downward under the action of the second spring 29, the silica gel ball block 24 is driven to re-enter the circular groove 23, the circular groove 23 on the piston plate 22 is blocked, at the same time, the entering hole 26 moves to the bottom of the piston plate 22, then the flushing liquid is added into the flushing tank 21 again for subsequent flushing. It should be noted that a one-way valve is installed on the spiral hose 27 to prevent the cooling liquid from entering the flushing tank 21, and a drain port is provided on the storage tank 301 to discharge the impurities and the flushing liquid and the cooling liquid.

[0035] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A heat dissipation device for a laser direct-cooling liquid cooling unit, comprising a heat dissipation housing (1) equipped with a laser heating element (2), a cooling circulation assembly (3) provided on the laser heating element (2), the cooling circulation assembly (3) comprising a spiral condenser tube (4), characterized in that: Also includes: A cylinder (5) is fixedly arranged in the heat dissipation housing (1), and a plurality of slide rods (6) are slidably connected in the cylinder (5), and a locking block (7) is slidably connected to each of the slide rods (6). A drive disk (8) is rotatably connected in the cylinder (5), and a plurality of arc-shaped holes (9) are opened on the drive disk (8), and a drive rod (10) corresponding to the arc-shaped hole (9) is fixedly connected to each of the slide rods (6).

2. The laser direct cooling liquid cooling unit heat dissipation device according to claim 1, characterized in that: The cooling circulation assembly (3) comprises a coolant storage tank (301) fixedly mounted on the outside of the heat dissipation housing (1); a motor (11) is fixedly mounted on the top wall of the heat dissipation housing (1); and a screw (12) is fixedly connected to the output end of the motor (11).

3. The laser direct cooling liquid cooling unit heat dissipation device according to claim 2, characterized in that: A mounting plate (13) is threadedly connected to the screw rod (12), a guide rod (14) is symmetrically fixedly connected to the mounting plate (13), a condenser (302) is fixedly mounted on the mounting plate (13), and a circulating pump (303) is fixedly mounted on the bottom wall of the heat dissipation housing (1).

4. The laser direct cooling liquid cooling unit heat dissipation device according to claim 3, characterized in that: An extraction pipe (304) is fixedly connected between the output end of the circulation pump (303) and the storage tank (301), and an inlet pipe (305) is fixedly connected between the other end of the circulation pump (303) and the condenser (302). The inlet pipe (305) is sheathed with a corrugated sleeve (306).

5. The laser direct cooling liquid cooling unit heat dissipation device according to claim 4, characterized in that: One end of the condenser (302) is fixedly connected to a mounting pipe (307), the mounting pipe (307) is fixedly connected to the spiral condenser tube (4), and one end of the spiral condenser tube (4) away from the mounting pipe (307) is connected to the storage box (301), and the mounting pipe (307) passes through the mounting plate (13) and is arranged in the cylinder (5).

6. The laser direct cooling liquid cooling unit heat dissipation device according to claim 5, characterized in that: A first spring (15) is sleeved on each of the slide rods (6), and the two ends of the first spring (15) are fixedly connected to the cylinder (5) and the slide rod (6), respectively. A support ring (16) is fixedly connected to the bottom of one side of the mounting plate (13), and the cylinder (5) is fixedly connected inside the support ring (16).

7. The laser direct cooling liquid cooling unit heat dissipation device according to claim 6, characterized in that: An extension rod (17) is fixedly connected to one side of the driving disk (8), a gear (18) is fixedly connected to the extension rod (17), a vertical plate (19) is fixedly connected to the bottom wall of the heat dissipation housing (1), and an upper portion of the vertical plate (19) is provided with a tooth groove (20) that meshes with the gear (18).

8. The laser direct cooling liquid cooling unit heat dissipation device according to claim 1, characterized in that: A flushing tank (21) is fixedly mounted on the top wall of the heat dissipation housing (1), a piston plate (22) is fixedly connected inside the flushing tank (21), a circular groove (23) is formed on the piston plate (22), and a silicone ball (24) is slidably connected inside the circular groove (23).

9. The laser direct cooling liquid cooling unit heat dissipation device according to claim 8, characterized in that: A hollow rod (25) is fixedly connected to the bottom of the silica gel ball (24), an entry hole (26) is provided on one side of the hollow rod (25) near the bottom of the piston plate (22), and a spiral hose (27) is fixedly connected between the bottom of the hollow rod (25) and the spiral condenser (4).

10. The laser direct cooling liquid cooling unit heat dissipation device according to claim 9, characterized in that: One end of the hollow rod (25) away from the piston plate (22) passes through the flushing tank (21) and is slidably connected to the flushing tank (21). A fixed block (28) is fixedly connected to the hollow rod (25). A second spring (29) is sleeved on the hollow rod (25). Two ends of the second spring (29) are fixedly connected to the fixed block (28) and the flushing tank (21), respectively.

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