Lens thermal induction device
The lens thermal sensing device monitors the reflective lens temperature in real time and controls heat dissipation, solving the problem of easy damage to the reflective lens and improving the stability and safety of the laser system.
Patent Information
- Application Number
- CN202422395443.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing technology lacks an effective temperature monitoring device, which causes the reflective lens to be easily damaged at high temperatures, affecting the performance and safety of the laser system.
A lens thermal sensing device is used, including a temperature sensor, a radiator and a control unit, to monitor the temperature of the reflective lens in real time and control the radiator to dissipate heat to prevent overheating.
Real-time temperature monitoring and timely heat dissipation of the reflective lens are achieved to prevent lens damage and improve the stability and safety of the laser system.
Smart Images
Figure CN223401092U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of laser tubes, and more particularly, to a lens thermal sensing device. Background Art
[0002] A laser tube is a device that can generate laser light and is widely used in industries such as industry, medicine, and scientific research. A laser tube typically includes a tube body and a light source. A gain medium is disposed within the tube body. The light source is injected into the glass tube to excite the gain medium, generating a highly coherent, monochromatic, and directional laser beam. This laser beam is then used to achieve industrial applications such as cutting, welding, engraving, and marking. In laser tube applications, the intensity of the laser beam is increased by connecting multiple laser tubes in series. A specific series-connected laser tube structure includes at least two laser tubes and a laser reflector assembly. The laser reflector assembly typically includes a mounting base and two reflective lenses. Both reflective lenses are mounted on the mounting base, with their reflective surfaces facing each other. A channel is provided through the mounting base to connect the two reflective lenses. Two laser tubes are connected to the mounting base and are respectively connected to the two reflective lenses. The laser beam generated by one laser tube is incident on one reflective lens, reflected by the reflective lens and redirected to the other reflective lens. Then, it is reflected by the second reflective lens and redirected to the other laser tube, exciting the gain medium within the laser tube, thereby enhancing the laser beam.
[0003] When the laser beam comes into contact with the lens, it will generate heat. The reflective lens is easily damaged at high temperature. Therefore, a radiator is needed to dissipate heat from the lens to protect the reflective lens, so that the series laser tube structure has a long service life and the laser is stable. In order to keep the reflective lens in good condition, the temperature of the reflective lens needs to be monitored so that the radiator can dissipate heat from the reflective lens in time. In the related technology, there is no corresponding temperature monitoring device to monitor the temperature of the reflective lens. Therefore, the development of a new technology that is efficient, accurate and can monitor the temperature of the reflective lens in real time will help improve the performance and safety of the laser system. Utility Model Content
[0004] In order to solve the problem in the related art that excessive temperature may cause the reflective lens in the laser tube to deteriorate or even be damaged, the present application provides a lens thermal sensing device to monitor the temperature of the reflective lens so that the radiator can dissipate heat from the reflective lens in a timely manner.
[0005] A lens thermal sensing device comprises a mounting seat and a lens mounting cover, wherein the number of the lens mounting covers is two, and the two lens mounting covers are fixed to the mounting seat, the two lens mounting covers are provided with mounting grooves, and the mounting grooves of the two lens mounting covers are provided with reflective lenses, the two lens mounting covers are provided with radiators, the radiators are connected to the mounting grooves for dissipating heat from the reflective lenses, the lens mounting covers are further provided with temperature sensors, the temperature sensors are connected to the mounting grooves, the mounting seat is provided with a channel, and the two reflective lenses are connected through the channel;
[0006] It also includes a data processing unit and a control unit. The data processing unit is connected to the temperature sensor for receiving and analyzing data. The data processing unit and the control unit exchange signals to receive the data processing unit signals and form instructions. The control unit is connected to the radiator to control the start and stop of the radiator.
[0007] Preferably, the temperature sensor is an infrared temperature sensor.
[0008] Preferably, each lens mounting cover is provided with two temperature sensors, and the two temperature sensors are arranged at intervals.
[0009] Preferably, the radiator is a semiconductor refrigeration plate.
[0010] Preferably, the mounting seat is further provided with a first connecting hole and a second connecting hole, one of the reflective lenses is connected to the outside of the mounting seat through the first connecting hole, and the other reflective lens is connected to the outside of the mounting seat through the second connecting hole.
[0011] Preferably, it further comprises an early warning module for issuing an alarm when the temperature reaches a preset threshold value, and the early warning module is signal-connected to the control unit.
[0012] This application has the following beneficial technical effects:
[0013] 1. The reflective lens is cooled by a radiator, and the temperature inside the reflective lens is sensed in real time by a temperature sensor. The data processing unit receives the temperature data sensed by the temperature sensor, analyzes the data, and transmits the analysis results to the control unit. When the temperature of the reflective lens reaches a preset value, the control unit controls the radiator to start cooling the reflective lens, so that the radiator can dissipate heat for the reflective lens in time, effectively preventing the reflective lens from being degraded or even damaged due to overheating. The two reflective lenses are connected through a channel to realize the laser beam being reflected and redirected from one reflective lens to the other reflective lens.
[0014] 2. An infrared temperature sensor is used to achieve non-contact high-precision measurement of the reflective lens. The temperature sensor does not contact the reflective lens, which is beneficial to reduce interference with the laser beam. A semiconductor refrigeration chip is used to cool the reflective lens. The semiconductor refrigeration chip is small in size and suitable for small reflective lenses, which is easy to install. The semiconductor refrigeration chip can accurately control the cooling effect by adjusting the current and flexibly adapt to different heat dissipation requirements.
[0015] 3. The early warning module is used to remind operators in time and reduce potential risks. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 Schematic diagram of the structure of a lens sensing device according to this embodiment.
[0017] Figure 2 4 is a cross-sectional view of a lens sensing device according to this embodiment.
[0018] Figure 3 This is a flow chart showing the connection relationship among the radiator, temperature sensor, data processing unit, control unit, and early warning module of this embodiment.
[0019] Figure numerals: 1. Mounting seat; 11. Channel; 12. First connecting hole; 13. Second connecting hole; 2. Lens mounting cover; 21. Mounting groove; 22. Reflective lens; 23. Radiator; 24. Temperature sensor; 3. Data processing unit; 4. Control unit; 5. Early warning module. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0021] Reference Figure 1 and Figure 2, a lens thermal sensing device includes a mounting seat 1, a lens mounting cover 2, a data processing unit 3, a control system and an early warning module 5. The mounting seat 1 has an isosceles trapezoidal seat structure, and the number of lens mounting covers 2 is two, and one side of the two lens mounting covers 2 is concavely provided with a mounting groove 21, and each lens mounting cover 2 is installed with a reflective lens 22 in the mounting groove 21. A channel 11 is provided on the mounting seat 1, and the channel 11 passes through the two inclined side walls of the mounting seat 1. The two lens mounting covers 1 are respectively fixed on the two inclined side walls of the mounting seat 1 and are connected to the mounting seat 1 by bolts, which is convenient for disassembly and maintenance. The reflective lenses 22 in the mounting grooves 21 of the two lens mounting covers 1 are aligned with the channels 11 and are connected through the channels 11. The two reflective lenses 22 are abutted against the inclined side walls of the mounting seat 1 to be limited to the mounting grooves 21 of the lens mounting cover 1. The reflective surfaces of the two reflective lenses 22 are opposite and inclined, so that the laser beam is reflected and redirected by one reflective lens 22 to the other reflective lens 22.
[0022] Reference Figure 2 and Figure 3 A radiator 23 is provided on each of the two lens mounting covers 2. The radiator 23 is a semiconductor refrigeration chip. The body of the semiconductor refrigeration chip is located between the bottom surface of the mounting groove 21 and the reflective lens 22, and is clamped and fixed by the bottom surface of the mounting groove 21 and the reflective lens 22. The wires of the semiconductor refrigeration chip pass through the bottom surface of the mounting groove 21 to connect to the external power supply and the control unit 4. By passing current through the semiconductor refrigeration chip, the semiconductor refrigeration chip is driven to operate and dissipate heat for the reflective lens 22, and the start and stop of the semiconductor refrigeration chip is controlled by the control unit 4.
[0023] Reference Figure 1 、 Figure 2 and Figure 3, the outer bottom surfaces of the two lens mounting covers 2 are fixed with temperature sensors 24, which are infrared temperature sensors 24. The infrared temperature sensors 24 are connected to the mounting groove 21, and the number of infrared temperature sensors 24 is two and they are arranged at intervals. The temperature of the reflective lens 22 is sensed non-contactly by the infrared temperature sensors 24. The sensing accuracy of the two infrared temperature sensors 24 is higher. The infrared temperature sensor 24 is connected to the data processing unit 3. The data processing unit 3 is used to receive and analyze the temperature data sensed by the infrared temperature sensor 24. The data processing unit 3 interacts with the control unit 4. The control unit 4 receives the data analysis results of the data unit and forms an instruction. When the temperature value of the reflective lens 22 reaches a preset value, the control unit 4 controls the operation of the semiconductor refrigeration chip to reflect the mirror 22. The reflective lens 22 is cooled down, and the preset value is set to a temperature value above the normal temperature value of the reflective lens 22 and the temperature value is much lower than the critical value of overheating of the reflective lens 22. By monitoring the temperature of the reflective lens 22 and controlling the radiator 23 pneumatically to dissipate heat for the lens through the temperature value, it is effectively prevented that the reflective lens 22 is actually damaged due to overheating. An infrared temperature sensor 24 is used to realize non-contact high-precision measurement of the reflective lens 22. The temperature sensor does not contact the reflective lens 22, which is conducive to reducing interference with the laser beam and has a fast response speed. A semiconductor refrigeration chip is used to cool the reflective lens 22. The semiconductor refrigeration chip is small in size and suitable for the small reflective lens 22, which is easy to install. The semiconductor refrigeration chip can accurately control the cooling effect by adjusting the current and flexibly adapt to different heat dissipation requirements.
[0024] Reference Figure 3 The early warning module 5 is used to issue an alarm when the preset threshold is stable. The early warning module 5 is connected to the control unit 4 by signal. When the temperature of the reflective lens 22 reaches the preset threshold, the control unit 4 controls the early warning module 5 to operate and issue an alarm. The preset threshold of the early warning module 5 is the critical value of overheating of the reflective lens 22. The use of the early warning module 5 to issue an alarm facilitates timely reminding of the operator and reduces potential risks.
[0025] An Reference Figure 1 and Figure 2The bottom surface of the mounting seat is further provided with a first connecting hole 12 and a second connecting hole 13. The first connecting hole 12 is connected to a reflective lens 22, and the second connecting hole 13 is connected to another reflective lens 22. The laser tube is connected to the reflective lens 22 by connecting the input port of one laser tube to the first connecting hole 12, and the laser tube is connected to the reflective lens 22 by connecting the output port of the other laser tube to the second connecting hole 13, thereby realizing the series connection of the two laser tubes. The laser beam formed by the laser tube is incident on the reflective lens 22 connected to the second connecting hole 13, and is reflected and deflected by the reflective lens 22 so that the laser beam passes through the channel 11 and is incident on the other reflective lens 22. The laser beam is then reflected and deflected by the reflective lens 22 so that the laser beam passes through the first connecting hole 12 and is incident on the other laser tube. The laser beam excites the gain medium in the laser tube to enhance the intensity of the laser beam.
[0026] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A lens thermal sensing device, characterized in that: The invention comprises a mounting seat and a lens mounting cover, wherein the number of the lens mounting covers is two, and the two lens mounting covers are fixed to the mounting seat, the two lens mounting covers are provided with a mounting groove, and the mounting grooves of the two lens mounting covers are both installed with a reflective lens, the two lens mounting covers are provided with a radiator, the radiator is connected to the mounting groove for dissipating heat for the reflective lens, the lens mounting cover is further provided with a temperature sensor, the temperature sensor is connected to the mounting groove, the mounting seat is provided with a channel, and the two reflective lenses are connected according to the channel; It also includes a data processing unit and a control unit. The data processing unit is connected to the temperature sensor for receiving and analyzing data. The data processing unit and the control unit exchange signals to receive the data processing unit signals and form instructions. The control unit is connected to the radiator to control the start and stop of the radiator.
2. The lens thermal sensing device according to claim 1, characterized in that: The temperature sensor is an infrared temperature sensor.
3. The lens thermal sensing device according to claim 2, characterized in that: Each lens mounting cover is provided with two temperature sensors, and the two temperature sensors are arranged at intervals.
4. The lens thermal sensing device according to claim 1, characterized in that: The radiator is a semiconductor refrigeration plate.
5. The lens thermal sensing device according to claim 1, characterized in that: The mounting seat is further provided with a first connecting hole and a second connecting hole. One of the reflective lenses is connected to the outside of the mounting seat through the first connecting hole, and the other reflective lens is connected to the outside of the mounting seat through the second connecting hole.
6. The lens thermal sensing device according to claim 1, characterized in that: It also includes an early warning module for issuing an alarm when the temperature reaches a preset threshold value, and the early warning module is connected to the control unit by signal.