Temperature control device and method for laser with dense wavelengths

Abstract

The invention relates to the technical field of lasers, and discloses a temperature control device and method for a laser with dense wavelengths. The power controller is mounted in the laser; the wavelength sensor is mounted in the laser; the fixed block is fixed on the back surface of the power controller; the power controller is arranged in the laser through the fixing structure, a mounting plate is arranged in the fixing structure, and the fixing block is assembled on the mounting plate. Through simple rotation and pushing actions, a worker can quickly complete disassembly or assembly of the power controller, complicated operation steps or tools are not needed, so that time and energy are saved, secondly, the mechanism ensures disassembly and assembly convenience, and the disassembly and assembly process is smoother due to the design of the fixing ring, the convex block, the through opening and the like.

Description

Technical Field

[0001] The present invention relates to the field of laser technology, and in particular to a temperature control device and method for a laser with a dense wavelength. Background Art

[0002] A laser is a device that can emit laser light. The laser needs to output a dense and stable wavelength to ensure accurate signal transmission. Temperature changes will affect the wavelength output of the laser. Therefore, temperature control devices are crucial to maintaining the wavelength stability of the laser. They can ensure that the laser outputs a stable and dense wavelength, thereby improving the transmission capacity and performance of the system.

[0003] In the prior art, a dense wave light source with different wavelengths but small wavelength intervals in a laser module is homogenized by an optical lens group, so that the far-field and near-field divergence angles of the three light beams with different wavelengths are close to the same. Then, the temperature of the three light beams is accurately controlled by a precision temperature control system to stabilize the wavelength of the light source. Then, the wavelength sensor is used to measure the initial power ratio of the three-wavelength light source of the module. The power balance control software compares the measured power ratio with the standard power ratio set by the system to obtain the power difference and feeds it back to the laser control module. The module automatically adjusts the optical power of light sources of different wavelengths according to the power difference, so that the laser power ratio is consistent with the standard power ratio, thereby realizing temperature control regulation of the laser. However, for the laser control module used to control the power, it is usually installed inside the laser by screws and does not have the function of quick disassembly and assembly. When the laser needs regular maintenance or troubleshooting, the laser control module installed with screws takes a long time to disassemble and reinstall, which not only increases maintenance costs, but may also cause the laser to malfunction during maintenance, affecting production efficiency. Secondly, with the continuous advancement of technology, the performance of laser control modules is also constantly improving. When the laser control module needs to be upgraded or replaced, the screw installation method will limit the upgrade speed, because each upgrade requires tedious disassembly and installation work, which may cause the laser to be unable to keep up with the pace of technological development in a timely manner, reducing its market competitiveness.

[0004] Therefore, it is necessary to design a laser temperature control device and method with dense wavelengths to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a laser temperature control device and method with dense wavelengths.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A temperature control device for a laser with dense wavelengths, comprising: Lasers; A power controller installed inside the laser; A wavelength sensor installed inside the laser; A fixing block, fixed on the back of the power controller; A fixing structure, wherein the power controller is arranged inside the laser through the fixing structure, a mounting plate is arranged in the fixing structure, and the fixing block is assembled on the mounting plate; A control structure, disposed on the mounting plate; The pushing structure is arranged on the outer surface of the laser.

[0007] As a preferred technical solution of the present invention, the fixing structure further includes: A mounting groove is provided on a side of the mounting plate; Two openings are respectively provided on two sides of the mounting plate, and both of the openings are connected to the mounting groove; Two clamping blocks are slidably disposed in the two openings respectively; Two card slots are both arranged on the side surface of the fixing block.

[0008] As a preferred technical solution of the present invention, the control structure includes: Two sliding blocks are both slidably arranged on the top surface of the mounting plate, and each of the sliding blocks is provided with an inclined surface; Two connecting rods, one end of each of the two connecting rods is fixedly connected to two sliding blocks, and the other end of each of the two connecting rods is fixedly connected to two clamping blocks; Two limit blocks 1 are respectively fixed on the two sliding blocks; Two limit rods 1 are fixed on the top surface of the mounting plate, and two limit blocks 1 are respectively slidably sleeved on the two limit rods 1; Two tension springs, one end of each of the tension springs is connected to the mounting plate, and the other end of each of the tension springs is connected to two limit blocks respectively; The control plate is placed between the two sliding blocks. The control plate is provided with two inclined surfaces, which are matched with the inclined surfaces on the sliding blocks.

[0009] As a preferred technical solution of the present invention, the pushing structure includes: A push rod passes through the laser and is slidably connected to the laser, and one end of the push rod located inside the laser is fixedly connected to the control board; A rotating rod, rotatably mounted on one end of the push rod located outside the laser; A fixed ring, fixedly sleeved on the rotating rod; A projection, fixed on the outer peripheral surface of the fixing ring; A retaining ring is fixed on the outer surface of the laser, and the retaining ring is arranged opposite to the fixing ring; A through opening is provided on the retaining ring, and a shape of the through opening is matched with the protrusion.

[0010] As a preferred technical solution of the present invention, the side surface of the fixing block and the groove wall of the installation groove are in contact with each other.

[0011] As a preferred technical solution of the present invention, a cooling tube is provided on the surface of the power controller, a coolant is accumulated in the cooling tube, a cooling structure is provided on the laser, a water absorption structure is provided on one side of the power controller, and a driving structure and a pumping structure are also provided inside the laser; Wherein, the cooling structure comprises: A first assembly port is provided on the laser; A cooling box is fixed in the first assembly port, and the cooling box is connected to the cooling pipe through a return pipe; A second assembly opening is provided on the cooling box; The semiconductor refrigeration sheet is installed in the second assembly opening, and the semiconductor refrigeration sheet is arranged opposite to the first assembly opening.

[0012] As a preferred technical solution of the present invention, the water absorbing structure comprises: A movable plate, arranged on one side of the power controller; Water-absorbing cotton is bonded to the side of the movable plate, and the water-absorbing cotton is arranged toward the power controller; Two limit blocks 2 are respectively fixed at the upper and lower ends of the movable plate; The two limiting rods 2 are respectively fixed at the upper and lower ends of the power controller, and the two limiting blocks 2 are respectively slidably sleeved on the two limiting rods 2.

[0013] As a preferred technical solution of the present invention, the driving structure includes: A motor installed inside the laser; An eccentric wheel is fixedly sleeved on the output shaft of the motor, and the eccentric wheel is eccentrically arranged between the output shaft of the motor; The vertical rod is fixed on the second limiting block located below, and the vertical rod is arranged directly opposite to the eccentric wheel.

[0014] As a preferred technical solution of the present invention, the pumping structure includes: A fixed rod, one end of which is fixed inside the laser; A fixing cylinder, fixed to the other end of the fixing rod, and the fixing cylinder is located directly above the motor; A rotating block is fixed on the output shaft of the motor, and the rotating block is placed inside the fixed cylinder; A moving block is slidably arranged inside the fixed cylinder, and the moving block is located above the rotating block; A guide groove is provided on the inner surface of the fixing tube; A guide block is fixed on the moving block, and the guide block slides in the guide groove; A capsule body, one end of which is connected to the inner top surface of the fixed cylinder, and the other end of which is connected to the moving block; Two mounting tubes, one end of each of which is connected to the capsule, the other end of one of the mounting tubes is connected to the cooling tube, and the other end of the other mounting tube is connected to the cooling box; Two one-way valves are respectively installed on the two installation pipes.

[0015] A method for temperature control of a laser with dense wavelengths, comprising the following steps: Step 1: Initial temperature setting and calibration: Install temperature sensors near the three different wavelength light sources in the laser module. Set the initial operating temperature for each light source according to the working characteristics and material properties of the laser. Start the temperature control system to adjust the temperature of the three wavelength light sources to the preset standard temperature range. Use the wavelength sensor to measure the initial power ratio of the three wavelength light sources in the module. Step 2: Dynamic temperature monitoring and adjustment: Use temperature sensors to continuously monitor the operating temperature of the three-wavelength light source and identify deviations from the standard temperature range. Once a temperature deviation is found, the temperature control system immediately activates the adjustment mechanism, including adjusting the light source temperature back to the standard range through heating elements or cooling fans to maintain the stability of the light source wavelength. Step 3: Wavelength feedback and power ratio optimization: Based on dynamic temperature monitoring, use the wavelength sensor to re-measure the power ratio of the three-wavelength light source of the module and compare it with the standard power ratio preset by the system. The power balance control software receives the measurement data of the wavelength sensor and calculates the difference between the current power ratio and the standard power ratio, that is, the power difference. According to the calculated power difference, the laser control module automatically adjusts the optical power output of light sources of different wavelengths and achieves power balance of the laser module by fine-tuning the light source brightness or driving current.

[0016] The present invention has the following beneficial effects: 1. The power controller has the function of quick disassembly and assembly. First, it greatly improves the efficiency of disassembly and assembly. Through simple rotation and pushing actions, the staff can quickly complete the disassembly or installation of the power controller without complicated operation steps or tools, thus saving time and energy. Secondly, the mechanism ensures the convenience of disassembly and assembly. The design of fixing ring, convex block, through-port and other designs makes the disassembly and assembly process smoother, reducing the difficulty of disassembly and assembly caused by improper operation or component jamming; 2. By setting up cooling pipes and pump-driven structures, efficient heat dissipation and cooling are achieved. The motor drives the rotating block to rotate, which in turn drives the moving block to move back and forth in the fixed cylinder. With the elastic force of the capsule and the flow limiting effect of the one-way valve, the coolant forms a circulation flow between the cooling pipe, the capsule and the cooling box. This circulation mechanism ensures that the coolant can continuously absorb heat from the surrounding of the power controller and cool it down through the semiconductor refrigeration sheet, thereby effectively reducing the temperature of the power controller; 3. By setting up a water absorption structure, the influence of water mist condensation on the operation of the laser is effectively prevented. The eccentric wheel is driven by a motor to rotate, which in turn drives the vertical rod and the movable plate to move, so that the absorbent cotton can wipe and absorb the water mist on the surface of the cooling tube, avoiding the condensation of water mist into water droplets, thereby preventing the water droplets from causing short circuits, corrosion and other adverse effects on the inside of the laser, ensuring the normal operation and stability of the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a laser temperature control device with dense wavelengths proposed by the present invention; Figure 2 This is a schematic diagram of a planar cross-sectional structure of a laser temperature control device with dense wavelengths proposed by the present invention; Figure 3 for Figure 2 A magnified view of the structure at A; Figure 4 It is a schematic diagram of the structure of the power controller; Figure 5 It is a schematic diagram of the structure of the power controller and the mounting structure; Figure 6 A schematic diagram of the structure of the power controller and the mounting structure from another perspective; Figure 7 It is a structural schematic diagram of the pumping structure; Figure 8 for Figure 6 Enlarged view of the structure at B.

[0018] In the figure: 1, laser; 2, power controller; 3, wavelength sensor; 4, fixed block; 51, mounting plate; 52, mounting slot; 53, opening; 54, clamping block; 55, clamping slot; 61, sliding block; 62, connecting rod; 63, limit block 1; 64, limit rod 1; 65, tension spring; 66, control board; 71, push rod; 72, rotating rod; 73, fixing ring; 74, bump; 75, retaining ring; 76, through port; 8, cooling Tube; 91, first assembly port; 92, cooling box; 93, second assembly port; 94, semiconductor refrigeration plate; 101, moving plate; 102, absorbent cotton; 103, limit block 2; 104, limit rod 2; 111, motor; 112, eccentric wheel; 113, vertical rod; 121, fixed rod; 122, fixed cylinder; 123, rotating block; 124, moving block; 125, capsule; 126, installation tube; 127, one-way valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0020] Reference Figure 1-8 , a laser temperature control device with dense wavelengths, including a laser 1; a power controller 2, installed inside the laser 1; a wavelength sensor 3, installed inside the laser 1; a fixing block 4, fixed on the back of the power controller 2, and homogenizing three different wavelength light sources through an optical lens group to ensure that the divergence angles of the three light beams in the far field and near field are close to the same, then, the temperature of the three-wavelength light source is accurately controlled by a precision temperature control system to stabilize the wavelength of the light source, and then, the initial power ratio of the three-wavelength light source of the module is measured by the wavelength sensor 3, and this measurement result is compared with the standard power ratio set by the system to calculate the power difference, and finally, the laser 1 control module automatically adjusts the optical power of the light sources of different wavelengths according to these power differences until the power ratio of the laser 1 is completely consistent with the standard power ratio, thereby achieving power balance of the laser module.

[0021] The laser temperature control device also includes a fixed structure, and the power controller 2 is arranged inside the laser 1 through the fixed structure. A mounting plate 51 is arranged in the fixed structure, and the fixed block 4 is assembled on the mounting plate 51. The fixed structure also includes: a mounting groove 52, which is opened on the side of the mounting plate 51, and the side of the fixed block 4 and the groove wall of the mounting groove 52 are mutually fitted; two openings 53 are respectively opened on both sides of the mounting plate 51, and the two openings 53 are both connected to the mounting groove 52; two clamping blocks 54 are respectively slidably set in the two openings 53; two clamping grooves 55 are both opened on the side of the fixed block 4.

[0022] The laser temperature control device also includes a control structure, which is arranged on the mounting plate 51, and the control structure includes: two sliding blocks 61, both of which are slidably arranged on the top surface of the mounting plate 51, and each sliding block 61 is provided with an inclined surface; two connecting rods 62, one end of the two connecting rods 62 is fixedly connected to the two sliding blocks 61 respectively, and the other end of the two connecting rods 62 is fixedly connected to the two clamping blocks 54 respectively; two limit blocks 63 are respectively fixed on the two sliding blocks 61; two limit rods 64 are both fixed on the top surface of the mounting plate 51, and the two limit blocks 63 are respectively slidably sleeved on the two limit rods 64; two tension springs 65, one end of the two tension springs 65 is connected to the mounting plate 51, and the other end of the two tension springs 65 is respectively connected to the two limit blocks 63; a control plate 66 is placed between the two sliding blocks 61, and the control plate 66 is provided with two inclined surfaces, which are adapted to the inclined surfaces on the sliding blocks 61.

[0023] The laser temperature control device also includes a pushing structure, which is arranged on the outer surface of the laser 1, and the pushing structure includes: a push rod 71, which passes through the laser 1 and is slidably connected to the laser 1, and the end of the push rod 71 located inside the laser 1 is fixedly connected to the control board 66; a rotating rod 72, which is rotatably mounted on the end of the push rod 71 located outside the laser 1; a fixing ring 73, which is fixedly sleeved on the fixing ring 72; a convex block 74, which is fixed on the outer peripheral surface of the fixing ring 73; a retaining ring 75, which is fixed on the outer surface of the laser 1, and the retaining ring 75 is arranged opposite to the fixing ring 73; a through opening 76, which is opened on the retaining ring 75, and the shape of the through opening 76 is adapted to the convex block 74.

[0024] When the power controller 2 needs to be disassembled, the staff first rotates the rotating rod 72. When the rotating rod 72 rotates, the fixed ring 73 on it will rotate accordingly. When the fixed ring 73 rotates, it can drive the protrusion 74 to rotate until the protrusion 74 is aligned with the through-hole 76. Then the staff pushes the rotating rod 72 to make the protrusion 74 pass through the through-hole 76. At this time, the retaining ring 75 will not hinder the fixed ring 73, so that the rotating rod 72 can drive the push rod 71 to move. When the push rod 71 moves, it can drive the control board 66 to move. In this process, the control board 66 will squeeze the inclined surfaces of the two sliding blocks 61. When the two sliding blocks 61 are squeezed, they can move and move away from each other. When the two sliding blocks 61 move away from each other, they can drive the two card blocks 54 to move through the two connecting rods 62, so that the two card blocks 54 are respectively separated from the two card slots 55. Without the restriction of the two card blocks 54, the fixed block 4 can be separated from the mounting slot 52, and the power controller 2 can be disassembled.

[0025] The surface of the power controller 2 is provided with a cooling tube 8, in which a cooling liquid is accumulated, a cooling structure is provided on the laser 1, a water absorption structure is provided on one side of the power controller 2, and a driving structure and a pumping structure are also provided inside the laser 1; wherein the cooling structure comprises: a first assembly port 91, which is provided on the laser 1; a cooling box 92, which is fixed in the first assembly port 91, and the cooling box 92 is connected with the cooling tube 8 through a return pipe; a second assembly port 93, which is provided on the cooling box 92; a semiconductor cooling sheet 94, which is installed in the second assembly port 93, and the semiconductor cooling sheet 94 is arranged opposite to the first assembly port 91, and the semiconductor cooling sheet 94 is installed on the cooling box 92. When the cooling liquid enters the cooling box 92, the energized semiconductor cooling sheet 94 will cool the cooling liquid, so that the cooling liquid in the cooling tube 8 is always in a low temperature state, and the low temperature cooling liquid can cool the power controller 2 in the process of flowing in the cooling tube 8, so as to avoid overheating of the power controller 2 and ensure the normal operation of the power controller 2. In addition, for the semiconductor cooling sheet 94 , the second assembly opening 93 opened on the cooling box 92 and the first assembly opening 91 opened on the laser 1 are used for heat dissipation of the heating surface of the semiconductor cooling sheet 94 .

[0026] The water absorption structure includes: a moving plate 101, which is arranged on one side of the power controller 2; a water-absorbing cotton 102, which is bonded to the side of the moving plate 101 and arranged toward the power controller 2; two stopper blocks 103, which are respectively fixed at the upper and lower ends of the moving plate 101; two stopper rods 104, which are respectively fixed at the upper and lower ends of the power controller 2, and the two stopper blocks 103 are respectively slidably sleeved on the two stopper rods 104. The driving structure includes: a motor 111, which is installed inside the laser 1; an eccentric wheel 112, which is fixedly sleeved on the output shaft of the motor 111, and the eccentric wheel 112 is eccentrically arranged between the output shaft of the motor 111; and a vertical rod 113, which is fixed on the stopper block 103 located below, and the vertical rod 113 is arranged directly opposite to the eccentric wheel 112. When the low-temperature coolant flows in the cooling tube 8, the temperature of the surface of the cooling tube 8 will decrease. When the high-temperature air inside the laser 1 contacts the low-temperature cooling tube 8, the gas will be cooled and liquefied, and a layer of water mist will be formed on the surface of the cooling tube 8. The water absorption structure set on the power controller 2 can clean the water mist, prevent the water mist from condensing into water droplets, and then prevent the water droplets from affecting the operation of the laser 1. Specifically, when the motor 111 is running, it can drive the eccentric wheel 112 to rotate. When the eccentric wheel 112 rotates, it will continuously squeeze the vertical rod 113. When the eccentric wheel 112 squeezes the vertical rod 113, the vertical rod 113 can move and drive the corresponding limit block 2 103 to move, so that the moving plate 101 and the absorbent cotton 102 move. During the movement, the absorbent cotton 102 can wipe the surface of the cooling tube 8 and absorb the water mist on the surface of the cooling tube 8, thereby absorbing the water mist.

[0027] The pumping structure includes: a fixed rod 121, one end of which is fixed inside the laser 1; a fixed cylinder 122, fixed to the other end of the fixed rod 121, and the fixed cylinder 122 is located directly above the motor 111; a rotating block 123, fixed to the output shaft of the motor 111, and the rotating block 123 is placed inside the fixed cylinder 122; a moving block 124, which is slidably arranged inside the fixed cylinder 122, and the moving block 124 is located above the rotating block 123; a guide groove, which is provided on the inner surface of the fixed cylinder 122; a guide block, which is fixed on the moving block 124, and the guide block slides in the guide groove; a capsule 125, one end of which is connected to the fixed cylinder 122 The inner top surface is connected to one end, and the other end is connected to the moving block 124; two mounting tubes 126, one end of each of which is connected to the capsule 125, the other end of one of the mounting tubes 126 is connected to the cooling tube 8, and the other end of the other mounting tube 126 is connected to the cooling box 92; two one-way valves 127 are respectively installed on the two mounting tubes 126, and the motor 111 runs and drives the rotating block 123 to rotate. Since the rotating block 123 and the moving block 124 form a cylindrical structure together, the rotating block 123 and the moving block 124 are the same size, and the rotating block 123 and the moving block 124 are provided with an inclined surface at the opposite end. The outer edges of the rotating block 123 and the moving block 124 are both in contact with the inner surface of the chamber, so during the rotation of the rotating block 123, the inclined surface portion of the rotating block 123 can squeeze the inclined surface portion of the moving block 124. Under the limiting action of the guide groove and the guide block, the moving block 124 cannot rotate with the rotating block 123, so the moving block 124 will move under the squeezing action of the rotating block 123. Therefore, during the operation of the motor 111, the moving block 124 will move under the rotation action of the rotating block 123, and cooperate with the elastic force of the capsule 125 to make the moving block 124 reciprocate in the fixed tube 122.

[0028] The specific working principle of the present invention is as follows: When the laser temperature control device with dense wavelengths proposed in the present invention is used, first, three different wavelength light sources are homogenized through an optical lens group to ensure that the divergence angles of the three light beams in the far field and near field are close to the same. Then, the temperature of the three-wavelength light source is accurately controlled by a precision temperature control system to stabilize the wavelength of the light source. Then, the initial power ratio of the three-wavelength light source of the module is measured by the wavelength sensor 3, and this measurement result is compared with the standard power ratio set by the system to calculate the power difference. Finally, the laser 1 control module automatically adjusts the optical power of light sources of different wavelengths according to these power differences until the power ratio of the laser 1 is completely consistent with the standard power ratio, thereby achieving power balance of the laser module.

[0029] The power controller 2 has the function of quick disassembly and assembly. When the power controller 2 needs to be disassembled, the staff first rotates the rotating rod 72. When the rotating rod 72 rotates, the fixed ring 73 on it will rotate accordingly. When the fixed ring 73 rotates, it can drive the protrusion 74 to rotate until the protrusion 74 is aligned with the through-hole 76. Then the staff pushes the rotating rod 72 to make the protrusion 74 pass through the through-hole 76. At this time, the retaining ring 75 will not hinder the fixed ring 73, so that the rotating rod 72 drives the push rod 71 to move. When the push rod 71 moves, it can drive the control board 66 to move. In this process, the control board 66 will squeeze the inclined surfaces of the two sliding blocks 61. When the two sliding blocks 61 are squeezed, they can move and move away from each other. When the two sliding blocks 61 move away from each other, they can drive the two card blocks 54 to move through the two connecting rods 62, so that the two card blocks 54 are respectively separated from the two card slots 55. Without the restriction of the two card blocks 54, the fixed block 4 can be separated from the mounting slot 52, and the disassembly of the power controller 2 can be realized.

[0030] When installing the power controller 2, the staff also first rotates and pushes the rotating rod 72 to make the two blocks 54 move away from each other until the two blocks 54 are respectively retracted into the two openings 53, and then the staff inserts the fixed block 4 into the installation groove 52. When the power controller 2 is fitted together with the mounting plate 51, the two grooves 55 just move to the position opposite the two blocks 54. At this time, the staff releases the rotating rod 72, and the control board 66 no longer applies thrust to the two sliding blocks 61. At this time, the two sliding blocks 61 will reset under the elastic force of the two tension springs 65, which makes the two blocks 54 approach each other and respectively snap into the two grooves 55. In this case, the two blocks 54 and the two grooves 55 jointly fix the fixed block 4, and the power controller 2 can be quickly installed.

[0031] A cooling tube 8 is provided on the side of the power controller 2. When the internal temperature of the laser 1 is too high, the motor 111 runs and drives the rotating block 123 to rotate. Since the rotating block 123 and the moving block 124 form a cylindrical structure together, the rotating block 123 and the moving block 124 are of the same size, and the opposite ends of the rotating block 123 and the moving block 124 are provided with inclined surfaces. The outer edges of the rotating block 123 and the moving block 124 are in contact with the inner surface of the chamber. Therefore, during the rotation of the rotating block 123, the inclined surface part thereof can squeeze the inclined surface part of the moving block 124. Under the limiting action of the guide groove and the guide block, the moving block 124 cannot rotate with the rotating block 123, so the moving block 124 will move under the squeezing action of the rotating block 123. Therefore, during the operation of the motor 111, the moving block 124 will move under the rotation action of the rotating block 123, and cooperate with the elastic force of the capsule 125 to make the moving block 124 reciprocate in the fixed cylinder 122. Furthermore, the sac 125 will be continuously squeezed and restored. Two mounting tubes 126 are connected to the sac 125. Both mounting tubes 126 are installed with one-way valves 127, and the flow limiting directions of the two one-way valves 127 are opposite. Specifically, one of the one-way valves 127 limits the liquid to only enter the sac 125, and the other one-way valve 127 limits the liquid to only flow out through the sac 125. When the sac 125 is compressed, the sac 125 can discharge liquid, and when the sac 125 is restored, the sac 125 can pump liquid. Based on the above process, during the periodic expansion and contraction process of the sac 125, the sac 125 can continuously extract the coolant in the cooling pipe 8 and pump the coolant into the cooling box 92. Furthermore, the coolant will flow back into the cooling pipe 8 through the reflux pipe, which allows the coolant to circulate in the cooling pipe 8, the sac 125 and the cooling box 92.

[0032] A semiconductor refrigeration sheet 94 is installed on the cooling box 92. When the coolant enters the cooling box 92, the energized semiconductor refrigeration sheet 94 will cool the coolant, so that the coolant in the cooling tube 8 is always in a low temperature state. The low-temperature coolant can cool the power controller 2 during the flow in the cooling tube 8, thereby avoiding overheating of the power controller 2 and ensuring the normal operation of the power controller 2. In addition, for the semiconductor refrigeration sheet 94, the second assembly port 93 provided on the cooling box 92 and the first assembly port 91 provided on the laser 1 are used for heat dissipation of the heating surface of the semiconductor refrigeration sheet 94.

[0033] When the low-temperature coolant flows in the cooling tube 8, the temperature of the surface of the cooling tube 8 will decrease. When the high-temperature air inside the laser 1 contacts the low-temperature cooling tube 8, the gas will be cooled and liquefied, and a layer of water mist will be formed on the surface of the cooling tube 8. The water absorption structure arranged on the power controller 2 can clean the water mist, prevent the water mist from condensing into water droplets, and thus prevent the water droplets from affecting the operation of the laser 1. Specifically, when the motor 111 is running, it can drive the eccentric wheel 112 to rotate. The eccentric wheel 112 will continuously squeeze the vertical rod 113 when rotating. When the eccentric wheel 112 squeezes the vertical rod 113, the vertical rod 113 can move and drive the corresponding limit block 103 to move, so that the movable plate 101 and the absorbent cotton 102 move. During the movement, the absorbent cotton 102 can wipe the surface of the cooling tube 8 and absorb the water mist on the surface of the cooling tube 8 to absorb the water mist. The reset spring arranged between the movable plate 101 and the power controller 2 is used for automatic reset of the movable plate 101. When the eccentric wheel 112 is separated from the vertical rod 113, the movable plate 101 will automatically reset under the action of the reset spring.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A temperature control device for a laser with a dense wavelength, characterized in that: include: Laser (1); A power controller (2) installed inside the laser (1); A wavelength sensor (3) installed inside the laser (1); A fixing block (4) fixed on the back of the power controller (2); A fixing structure, wherein the power controller (2) is arranged inside the laser (1) via the fixing structure, a mounting plate (51) is arranged in the fixing structure, and the fixing block (4) is assembled on the mounting plate (51); A control structure, arranged on the mounting plate (51); A pushing structure is arranged on the outer surface of the laser (1).

2. The laser temperature control device with dense wavelength according to claim 1, characterized in that: The fixed structure also includes: A mounting groove (52) is provided on a side surface of the mounting plate (51); Two openings (53) are respectively provided on two sides of the mounting plate (51), and the two openings (53) are both connected to the mounting groove (52); Two clamping blocks (54) are slidably disposed in the two openings (53) respectively; The two slots (55) are both provided on the side surface of the fixing block (4).

3. The laser temperature control device with dense wavelength according to claim 2, characterized in that: The control structure includes: Two sliding blocks (61) are both slidably arranged on the top surface of the mounting plate (51), and each of the sliding blocks (61) is provided with an inclined surface; Two connecting rods (62), one end of the two connecting rods (62) being fixedly connected to the two sliding blocks (61) respectively, and the other end of the two connecting rods (62) being fixedly connected to the two clamping blocks (54) respectively; Two limit blocks (63) are respectively fixed on the two sliding blocks (61); Two limiting rods (64) are fixed on the top surface of the mounting plate (51), and the two limiting blocks (63) are respectively slidably mounted on the two limiting rods (64); Two tension springs (65), one end of each of the two tension springs (65) being connected to the mounting plate (51), and the other ends of each of the two tension springs (65) being connected to two limit blocks (63) respectively; The control plate (66) is placed between the two sliding blocks (61), and two inclined surfaces are provided on the control plate (66), and the inclined surfaces are matched with the inclined surfaces on the sliding blocks (61).

4. The laser temperature control device with dense wavelength according to claim 3, characterized in that: The propulsion structure comprises: A push rod (71) passes through the laser (1) and is slidably connected to the laser (1); one end of the push rod (71) located inside the laser (1) is fixedly connected to the control board (66); A rotating rod (72) rotatably mounted on one end of the push rod (71) located outside the laser (1); A fixing ring (73) fixedly sleeved on the rotating rod (72); A convex block (74) fixed on the outer peripheral surface of the fixing ring (73); A retaining ring (75) is fixed on the outer surface of the laser (1), and the retaining ring (75) is arranged opposite to the fixing ring (73); A through opening (76) is provided on the retaining ring (75), and a shape of the through opening (76) is matched with the protrusion (74).

5. The laser temperature control device with dense wavelength according to claim 2, characterized in that: The side surface of the fixing block (4) and the groove wall of the installation groove (52) are in contact with each other.

6. The laser temperature control device with dense wavelength according to claim 1, characterized in that: A cooling tube (8) is provided on the surface of the power controller (2), a cooling liquid is stored in the cooling tube (8), a cooling structure is provided on the laser (1), a water absorption structure is provided on one side of the power controller (2), and a driving structure and a pumping structure are also provided inside the laser (1); Wherein, the cooling structure comprises: A first assembly opening (91) is provided on the laser (1); A cooling box (92) is fixed in the first assembly opening (91), and the cooling box (92) is connected to the cooling pipe (8) via a return pipe; A second assembly opening (93) is provided on the cooling box (92); The semiconductor cooling sheet (94) is installed in the second assembly opening (93), and the semiconductor cooling sheet (94) is arranged opposite to the first assembly opening (91).

7. The laser temperature control device with dense wavelength according to claim 6, characterized in that: The water absorbing structure comprises: A movable plate (101) is arranged on one side of the power controller (2), and the movable plate (101) and the power controller (2) are connected via a return spring; Water-absorbing cotton (102) is bonded to the side surface of the movable plate (101), and the water-absorbing cotton (102) is arranged toward the power controller (2); Two second limit blocks (103) are respectively fixed at the upper and lower ends of the movable plate (101); The two second limiting rods (104) are respectively fixed at the upper and lower ends of the power controller (2), and the two second limiting blocks (103) are respectively slidably mounted on the two second limiting rods (104).

8. The laser temperature control device with dense wavelength according to claim 7, characterized in that: The driving structure comprises: A motor (111) installed inside the laser (1); An eccentric wheel (112) is fixedly sleeved on the output shaft of the motor (111), and the eccentric wheel (112) is eccentrically arranged between the output shaft of the motor (111); The vertical rod (113) is fixed on the second limiting block (103) located below, and the vertical rod (113) is arranged directly opposite to the eccentric wheel (112).

9. The laser temperature control device with dense wavelength according to claim 8, characterized in that: The pumping structure comprises: A fixing rod (121), one end of which is fixed inside the laser (1); A fixing cylinder (122) fixed to the other end of the fixing rod (121), the fixing cylinder (122) being located directly above the motor (111); A rotating block (123) is fixed on the output shaft of the motor (111), and the rotating block (123) is placed inside the fixed cylinder (122); A moving block (124) is slidably disposed inside the fixed cylinder (122), and the moving block (124) is located above the rotating block (123); A guide groove, formed on the inner surface of the fixing cylinder (122); A guide block, fixed on the moving block (124), the guide block sliding in the guide groove; A capsule (125), one end of which is connected to the inner top surface of the fixed cylinder (122), and the other end of which is connected to the moving block (124); Two mounting tubes (126), one end of each of which is connected to the capsule (125), the other end of one of the mounting tubes (126) is connected to the cooling tube (8), and the other end of the other mounting tube (126) is connected to the cooling box (92); Two one-way valves (127) are respectively installed on the two installation pipes (126).

10. A temperature control method for a laser with dense wavelengths, applied to a temperature control device for a laser with dense wavelengths as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Initial temperature setting and calibration: temperature sensors are installed near the three different wavelength light sources in the laser module, and the initial operating temperature of each light source is set according to the operating characteristics and material properties of the laser (1). The temperature control system is started to adjust the temperature of the three wavelength light sources to within a preset standard temperature range, and the wavelength sensor (3) is used to measure the initial power ratio of the three wavelength light sources of the module at this time; Step 2: Dynamic temperature monitoring and adjustment: Use temperature sensors to continuously monitor the operating temperature of the three-wavelength light source and identify deviations from the standard temperature range. Once a temperature deviation is found, the temperature control system immediately activates the adjustment mechanism, including adjusting the light source temperature back to the standard range through heating elements or cooling fans to maintain the stability of the light source wavelength. Step 3: Wavelength feedback and power ratio optimization: Based on dynamic temperature monitoring, the wavelength sensor (3) is used to re-measure the power ratio of the three-wavelength light sources of the module and compare it with the standard power ratio preset by the system. The power balance control software receives the measurement data of the wavelength sensor (3) and calculates the difference between the current power ratio and the standard power ratio, i.e., the power difference. Based on the calculated power difference, the laser (1) control module automatically adjusts the optical power output of the light sources of different wavelengths and realizes the power balance of the laser module by fine-tuning the light source brightness or the driving current.

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