Intelligent temperature control device for medical laser frequency doubling crystal

Abstract

The utility model relates to medical laser technology field discloses a kind of medical laser frequency-doubling crystal intelligent temperature control device, comprising: heating box and temperature control box, heating box is fixedly installed in temperature control box top surface;Uniform heat dissipation component includes heat dissipation mainboard, heat dissipation mainboard is set in temperature control box, temperature control box is fixedly installed in heating box bottom surface, several heat dissipation sub-plates are fixedly installed with equidistance uniformity on heat dissipation mainboard bottom surface, a pair of heat dissipation air suction pipe is arranged below heat dissipation mainboard, several groups of suction holes are equidistantly and uniformly opened on heat dissipation air suction pipe.The medical laser frequency-doubling crystal intelligent temperature control device, gas from outside enters temperature control box through air hole, different aperture suction hole makes when heat dissipation air suction pipe works, the gas amount in suction hole is roughly consistent, unevenly arranged heat dissipation strip increases the heat dissipation effect to heat dissipation sub-plate center, avoid that temperature in heating box is too high or local overheating, maintain the dynamic balance of temperature control system.

Description

Technical Field

[0001] This utility model relates to the field of medical laser technology, and in particular to an intelligent temperature control device for a frequency doubling crystal in a medical laser. Background Technology

[0002] Lasers have excellent application value and broad application prospects in many fields such as scientific research, medicine, industrial processing, and military defense. Energy stability is crucial, directly affecting the accuracy of scientific data, the safety of medical procedures, and the precision of processing, among other properties. With the development of technology, the demand for lasers of specific wavelengths is increasing, leading to the widespread use of frequency-doubling crystals in this field. However, because these frequency-doubling crystals require accurate phase matching to achieve the highest laser frequency doubling conversion efficiency, phase matching mainly includes angle matching, temperature matching, and quasi-phase matching.

[0003] Announcement: CN117996549A discloses a temperature control device for a laser frequency doubling nonlinear crystal, belonging to the field of laser manufacturing. The device includes a temperature control furnace; the bottom of the furnace is a heat sink; a pair of parallel side plates are arranged around the furnace; the heat sink is positioned close to the base; each side plate has a threaded hole; a lens is installed within the threaded hole; the lens is threaded; the lens is threaded to the threaded hole; a heat-conducting seat is fixedly installed inside the furnace; the heat-conducting seat has a groove; the frequency doubling nonlinear crystal is placed in the groove; a semiconductor cooler is installed at the bottom of the heat-conducting seat. Compared with existing technologies, the temperature control furnace of this application adopts an insulated box structure, which has good sealing performance, reduces heat exchange with the outside environment, and also reduces the entry of external dust into the furnace, thus minimizing its impact on the frequency doubling nonlinear crystal and enhancing its stability.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the designed heat sink can adjust its length according to its temperature to achieve the ideal heat dissipation effect; the heat dissipation effect of the heat sink is not uniform; and the uneven heat dissipation of the heat sink makes it difficult for the temperature control system to accurately control the temperature. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the uneven heat dissipation of the heat sink in the existing technology makes it difficult for the temperature control system to accurately control the temperature. To this end, we propose an intelligent temperature control device for frequency doubling crystals of medical lasers.

[0006] To achieve the above objectives, this application adopts the following technical solution: a smart temperature control device for a medical laser frequency doubling crystal, comprising: a heating box and a temperature control box, wherein the heating box is fixedly installed on the top surface of the temperature control box, a heat dissipation cylinder is fixedly installed on the outer wall of the temperature control box, and a uniform heat dissipation component is provided inside the temperature control box;

[0007] The uniform heat dissipation component includes a heat dissipation main board, which is set inside the temperature control box. The temperature control box is fixedly installed on the bottom surface of the heating box. Several heat dissipation sub-plates are fixedly installed at equal intervals on the bottom surface of the heat dissipation main board. A pair of heat dissipation exhaust pipes are set below the heat dissipation main board. Both heat dissipation exhaust pipes are fixedly inserted through several heat dissipation sub-plates. Several sets of suction holes are evenly opened at equal intervals on the heat dissipation exhaust pipes. The inner diameter of the several sets of suction holes gradually decreases from the distance away from the heat dissipation cylinder to the distance closer to the heat dissipation cylinder. Several suction secondary holes are opened in the center of the heat dissipation exhaust pipes. The several suction secondary holes are set between several sets of adjacent suction holes.

[0008] Preferably, several air intake holes are respectively arranged between adjacent heat dissipation sub-plates, and several heat dissipation strips are fixedly installed at the bottom of the heat dissipation sub-plates. The spacing between adjacent heat dissipation strips gradually increases from the center of the heat dissipation sub-plate to both ends of the heat dissipation sub-plate.

[0009] Preferably, a number of air passage holes are evenly spaced at the bottom of the temperature control box, and a filter screen plate is fixedly installed at the bottom of the temperature control box. The inner diameter of the filter holes on the filter screen plate is smaller than the inner diameter of the air passage holes.

[0010] Preferably, both ends of the heat dissipation exhaust pipe are fixedly inserted through the outer wall of the temperature control box, one end of the heat dissipation exhaust pipe is fixedly inserted into the heat dissipation cylinder, the other end of the heat dissipation exhaust pipe is fixedly installed with a filter plate, and an electric exhaust fan is fixedly installed inside the heat dissipation cylinder.

[0011] Preferably, a semiconductor cooler is fixedly installed at the bottom of the heating box, a heat-conducting seat is fixedly installed on the top surface of the semiconductor cooler, a mounting groove is opened at the top of the heat-conducting seat, a frequency doubling crystal is fixedly installed in the mounting groove, and a pair of movable side plates are symmetrically fixedly installed at both ends of the heating box. A mounting hole is opened on the pair of movable side plates, and a fixed lens is fixedly installed in the mounting hole.

[0012] Preferably, the frequency doubling crystal and the fixed lens are at the same height, and a number of mounting holes are evenly spaced from top to bottom on the heat-conducting base, and thermistors are fixedly installed in the mounting holes.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, external gas enters the temperature control chamber through the vent. The different diameters of the vent holes ensure that the amount of gas passing through the vent holes is roughly the same when the heat dissipation exhaust pipe is working. The secondary vent holes allow more gas to enter the heat dissipation exhaust pipe through the center of the main heat dissipation plate. This allows the flowing gas to dissipate heat from the main heat dissipation plate, the secondary heat dissipation plate, and the heat sink. The unevenly arranged heat sink increases the heat dissipation effect on the center of the secondary heat dissipation plate, preventing the temperature inside the heating chamber from becoming too high or localized overheating. This ensures that the semiconductor cooler and the frequency doubling crystal are in a stable temperature environment and maintains the dynamic balance of the temperature control system. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the uniform heat dissipation component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the heat dissipation exhaust pipe structure of this utility model;

[0020] Figure 5 This is a side view of the uniform heat dissipation component of this utility model.

[0021] Figure 6 This is a schematic diagram of the front structure of the uniform heat dissipation component of this utility model.

[0022] Figure 7 This is a schematic diagram of the internal structure of the heating box of this utility model.

[0023] Legend: 1. Heating box; 11. Movable side plate; 12. Mounting hole; 13. Fixed lens; 2. Temperature control box; 21. Vent hole; 22. Filter plate; 3. Heat sink; 31. Electric exhaust fan; 4. Uniform heat dissipation assembly; 41. Main heat dissipation plate; 42. Sub-heat dissipation plate; 421. Heat dissipation strip; 43. Heat dissipation exhaust pipe; 431. Filter plate; 44. Suction hole; 45. Sub-suction hole; 5. Semiconductor cooler; 6. Heat-conducting base; 61. Mounting slot; 62. Placement hole; 63. Thermistor; 7. Frequency doubling crystal. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figures 1-6As shown, this utility model provides a technical solution: a smart temperature control device for a medical laser frequency doubling crystal, comprising: a heating box 1 and a temperature control box 2, wherein the heating box 1 is fixedly installed on the top surface of the temperature control box 2, a heat dissipation cylinder 3 is fixedly installed on the outer side wall of the temperature control box 2, and a uniform heat dissipation component 4 is provided inside the temperature control box 2;

[0026] The uniform heat dissipation component 4 includes a heat dissipation main board 41, which is disposed inside a temperature control box 2. The temperature control box 2 is fixedly installed on the bottom surface of the heating box 1. Several heat dissipation sub-plates 42 are uniformly and evenly fixedly installed on the bottom surface of the heat dissipation main board 41. A pair of heat dissipation exhaust pipes 43 are disposed below the heat dissipation main board 41. Both heat dissipation exhaust pipes 43 are fixedly installed through the several heat dissipation sub-plates 42. Several heat dissipation strips 421 are fixedly installed at the bottom end of the heat dissipation sub-plates 42. The spacing between adjacent heat dissipation strips 421 gradually increases from the center of the heat dissipation sub-plates 42 to both ends of the heat dissipation sub-plates 42. Several sets of suction holes 44 are uniformly and evenly opened on the heat dissipation exhaust pipes 43. The several sets of suction holes 44 are respectively disposed between adjacent heat dissipation sub-plates 42. The inner diameter of the several sets of suction holes 44 gradually decreases from away from the heat dissipation cylinder 3 to close to the heat dissipation cylinder 3. Several suction secondary holes 45 are opened in the center of the heat dissipation exhaust pipes 43. The several sets of suction secondary holes 45 are disposed between adjacent sets of suction holes 44.

[0027] The temperature control box 2 has a plurality of air passage holes 21 evenly spaced at the bottom. A filter screen plate 22 is fixedly installed at the bottom of the temperature control box 2. The inner diameter of the filter holes on the filter screen plate 22 is smaller than the inner diameter of the air passage holes 21. The filter screen plate 22 filters the air entering the temperature control box 2.

[0028] Both ends of the heat dissipation exhaust pipe 43 are fixedly inserted through the outer wall of the temperature control box 2. One end of the heat dissipation exhaust pipe 43 is fixedly inserted into the heat dissipation cylinder 3. A filter plate 431 is fixedly installed at the other end of the heat dissipation exhaust pipe 43. An electric exhaust fan 31 is fixedly installed inside the heat dissipation cylinder 3.

[0029] Reference Figures 1-6 As shown in this embodiment: when heat dissipation is required, the electric exhaust fan 31 is started, and the outside air enters the temperature control box 2 through the air vent 21. The filter plate 22 filters the incoming air. The air intake holes 44 with different diameters ensure that the amount of air passing through the air intake holes 44 is approximately the same when the heat dissipation exhaust pipe 43 is working. The secondary air intake hole 45 allows more air to enter the heat dissipation exhaust pipe 43 through the center of the heat dissipation main plate 41, so that the flowing air can dissipate heat for the heat dissipation main plate 41, the heat dissipation sub-plate 42 and the heat dissipation strips 421. The unevenly arranged heat dissipation strips 421 increase the heat dissipation effect on the center of the heat dissipation sub-plate 42, making the heat dissipation effect more uniform.

[0030] Reference Figure 7As shown, a semiconductor cooler 5 is fixedly installed at the bottom of the heating box 1. The semiconductor cooler 5 is a device that generates cooling by utilizing the thermoelectric effect of semiconductors. The semiconductor cooler 5 uses a conductor to connect two different metals. When a direct current is applied, the temperature at one junction decreases and the temperature at the other junction increases. The semiconductor cooler 5 can both cool and heat, ensuring the stability of the overall temperature, thereby ensuring the stability of the frequency doubling crystal 7. A heat-conducting seat 6 is fixedly installed on the top surface of the semiconductor cooler 5. The heat-conducting seat 6 has good thermal conductivity. The top of the heat-conducting seat 6 has a mounting groove 61, and the frequency doubling crystal 7 is fixedly installed in the mounting groove 61. A pair of movable side plates 11 are symmetrically fixed at both ends of the heating box 1 by screws. The pair of movable side plates 11 have mounting holes 12, and fixed lenses 13 are fixedly installed in the mounting holes 12.

[0031] The frequency doubling crystal 7 and the fixed lens 13 are at the same height. The heat-conducting base 6 has a plurality of mounting holes 62 evenly spaced from top to bottom. Thermistors 63 are fixedly installed in the mounting holes 62. The heat-conducting base 6 can transfer the temperature of the frequency doubling crystal 7 to the thermistors 63. The resistance value of the thermistor 63 changes with the temperature. That is, the temperature of the linear crystal 7 can be monitored in real time by the resistance change of the thermistor 63. The multiple thermistors 63 make the monitoring of the temperature of the linear crystal 7 more uniform.

[0032] In this implementation scheme: When in use, the laser beam is driven into the fixed lens 13, and the waist of the Gaussian beam is controlled in the frequency doubling crystal 7 by the fixed lens 13. Then, the laser beam of the required wavelength is output through another fixed lens 13. Finally, the required laser spot can be detected by a detector. When the frequency doubling needs to be adjusted, it can be adjusted by changing the cooling capacity of the semiconductor cooler 5.

[0033] It should be noted that the use of electric exhaust fan 31, semiconductor cooler 5 and thermistor 63 are common technical means in the field, and are not the key technical points of this utility model. The power supply equipment, control equipment and terminal equipment related to their use will not be described in detail here.

[0034] Working principle: The laser beam is directed into a fixed lens 13, which controls the waist of the Gaussian beam within the frequency doubling crystal 7. Then, another fixed lens 13 outputs the laser beam of the desired wavelength. Finally, a detector can be used to detect the desired laser spot. Frequency doubling can be adjusted by changing the cooling capacity of the semiconductor cooler 5. The electric exhaust fan 31 is activated, and outside gas enters the temperature control chamber 2 through the vent 21. The filter plate 22 filters the incoming gas. The intake holes 44 with different apertures allow the gas to pass through the heat dissipation exhaust pipe 43 while it is operating. The amount of gas in the suction port 44 is roughly the same. The suction port 45 allows more gas to enter the heat dissipation exhaust pipe 43 through the center of the heat dissipation main plate 41. This allows the flowing gas to dissipate heat from the heat dissipation main plate 41, the heat dissipation sub-plate 42, and the heat dissipation strips 421. The unevenly arranged heat dissipation strips 421 increase the heat dissipation effect on the center of the heat dissipation sub-plate 42, making the heat dissipation effect more uniform. This ensures the uniformity of the temperature inside the heating chamber 1, avoids excessively high temperatures or local overheating inside the heating chamber 1, and ensures that the semiconductor cooler 5 and the frequency doubling crystal 7 are in a stable temperature environment, maintaining the dynamic balance of the temperature control system.

[0035] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A smart temperature control device for a frequency doubling crystal in a medical laser, characterized in that, include: A heating box and a temperature control box are provided. The heating box is fixedly installed on the top surface of the temperature control box. A heat dissipation cylinder is fixedly installed on the outer wall of the temperature control box. A uniform heat dissipation component is provided inside the temperature control box. The uniform heat dissipation assembly includes a heat dissipation main board, which is disposed inside a temperature control box. The temperature control box is fixedly installed on the bottom surface of the heating box. Several heat dissipation sub-plates are fixedly installed at equal intervals on the bottom surface of the heat dissipation main board. A pair of heat dissipation exhaust pipes are disposed below the heat dissipation main board. Each pair of heat dissipation exhaust pipes is fixedly inserted through several heat dissipation sub-plates. Several sets of suction holes are evenly opened at equal intervals on the heat dissipation exhaust pipes. The inner diameter of the several sets of suction holes gradually decreases from the distance from the heat dissipation cylinder to the distance from the heat dissipation cylinder. Several suction secondary holes are opened in the center of the heat dissipation exhaust pipes. The several suction secondary holes are disposed between several adjacent sets of suction holes.

2. The intelligent temperature control device for frequency doubling crystals of medical lasers according to claim 1, characterized in that: Several air intake holes are respectively arranged between adjacent heat dissipation sub-plates. Several heat dissipation strips are fixedly installed at the bottom of the heat dissipation sub-plates, and the spacing between adjacent heat dissipation strips gradually increases from the center of the heat dissipation sub-plate to both ends of the heat dissipation sub-plate.

3. The intelligent temperature control device for frequency doubling crystals of medical lasers according to claim 1, characterized in that: The temperature control box has several air passage holes evenly spaced at the bottom. A filter screen plate is fixedly installed at the bottom of the temperature control box. The inner diameter of the filter holes on the filter screen plate is smaller than the inner diameter of the air passage holes.

4. The intelligent temperature control device for frequency doubling crystals of medical lasers according to claim 1, characterized in that: Both ends of the heat dissipation exhaust pipe are fixedly inserted through the outer wall of the temperature control box. One end of the heat dissipation exhaust pipe is fixedly inserted into the heat dissipation cylinder. A filter plate is fixedly installed at the other end of the heat dissipation exhaust pipe. An electric exhaust fan is fixedly installed inside the heat dissipation cylinder.

5. The intelligent temperature control device for frequency doubling crystals of medical lasers according to claim 1, characterized in that: A semiconductor cooler is fixedly installed at the bottom of the heating box. A heat-conducting seat is fixedly installed on the top surface of the semiconductor cooler. A mounting groove is opened at the top of the heat-conducting seat. A frequency doubling crystal is fixedly installed in the mounting groove. A pair of movable side plates are symmetrically fixedly installed at both ends of the heating box. A mounting hole is opened on the pair of movable side plates. A fixed lens is fixedly installed in the mounting hole.

6. The intelligent temperature control device for frequency doubling crystals of medical lasers according to claim 5, characterized in that: The frequency doubling crystal and the fixed lens are at the same height. The heat-conducting base has a number of mounting holes evenly spaced from top to bottom, and the thermistors are fixedly installed in the mounting holes.

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