Multi-dimensional adjusting device for constant temperature and temperature control of laser
By designing a multi-dimensional calibration device for constant temperature control of lasers, using temperature sensors and semiconductor refrigerators to achieve accurate constant temperature control of lasers, the problem of lasers being difficult to achieve accurate constant temperature control in high temperature environments in the prior art is solved, and the working stability and service life of the laser are improved.
Patent Information
- Application Number
- CN202420781295.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The prior art is difficult to achieve accurate constant temperature control in laser working for a long time or in high temperature environments. Conventional refrigeration methods are inefficient and unstable, and cannot meet the high-precision requirements of lasers for temperature.
A multi-dimensional calibration device for constant temperature control of lasers is designed, and the temperature change signal is received through the temperature sensor, and the control signal is output to the semiconductor refrigerator using the constant temperature control motherboard, and the refrigeration capacity is adjusted in real time to control the temperature of the laser temperature control copper seat to realize constant temperature control of the laser.
It realizes accurate constant temperature control of the laser, improves the working stability and service life of the laser, and is suitable for scenarios where the laser is harsh in the working environment and high temperature accuracy requirements.
Smart Images
Figure CN222996029U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to technical fields such as laser gas analysis, laser processing, and laser cutting, and specifically provides a multi-dimensional calibration device for constant temperature control of a laser. Background Technique
[0002] Based on continuous monitoring of gases, laser processing production, and calibration of optical devices, adjustment of light source beams and constant temperature control of lasers have become necessary conditions for various laser-dependent devices. All kinds of analysis and detection instruments, production and processing equipment can work and operate on their equipment and instruments only after being adjusted optically to a perfect state.
[0003] In practical applications, due to the long-term operation of the laser or the long-term operation at high temperatures, it is necessary to cool the laser or the working environment to prevent damage to the laser due to excessive temperature. The conventional method is to use a TEC refrigeration chip inside the laser to perform heat exchange on a local part of the laser itself. However, in this application, since the TEC refrigeration chip itself is placed in a high-temperature environment, the refrigeration efficiency is greatly reduced, and it is easily damaged due to poor heat dissipation. Or, the temperature of the laser is controlled by purging the fixing parts of the laser with air flow. However, here, due to the influence of the size and stability of the air flow, the refrigeration part can only refrigerate and cannot accurately control the temperature at a constant level. Or, the fixing parts of the laser are directly cooled by the TEC refrigeration chip to reduce the temperature of the laser through conduction. However, here, due to the influence of the conduction ability, the temperature cannot be accurately controlled at a constant level.
[0004] In summary, the utility model proposes a multi-dimensional calibration device for constant temperature control of a laser to solve the actual problems encountered in the above applications. This multi-dimensional calibration device for constant temperature control of a laser directly receives the signal of temperature change through a temperature sensor, outputs a control signal to a semiconductor refrigerator through the operation of a constant temperature control main board, and controls the refrigeration capacity of the semiconductor refrigerator in real time to control the temperature of the temperature control copper seat of the laser, locking the temperature of the laser at a fixed temperature point, thereby realizing the constant temperature control of the laser. This solution is mainly applicable to scenarios where the working environment of the laser is harsh and the temperature accuracy requirements are high. While achieving good refrigeration and heat dissipation functions, it greatly improves the working stability and service life of the laser. Content of the Utility Model
[0005] The purpose of the utility model is to propose a multi-dimensional calibration device for constant temperature control of a laser to solve the actual problems encountered in the above applications.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A multi-dimensional calibration device for laser constant temperature control, including an optical fixing module and an optical adjustment module. The optical fixing module is designed with a longitudinal adjustment screw pair, a transverse adjustment screw pair, an optical fixing seat, and a constant temperature control main board. The longitudinal adjustment screw pair and the transverse adjustment screw pair are installed on the optical fixing seat to control the direction and position of the light source. The constant temperature control main board is installed on the back of the optical fixing seat to control the temperature of the device.
[0008] The optical adjustment module includes a laser temperature control copper seat, which is tightly fixed together with a semiconductor cooler. The laser is welded on the laser PCB, and the gap between the laser and the laser temperature control copper seat is filled with thermal grease. The laser temperature control copper seat and the semiconductor cooler are fixed together in the optical adjustment seat.
[0009] Among them, the optical adjustment seat is internally designed with a refrigeration channel. The head and tail of the refrigeration channel are equipped with an adjustment seat refrigeration output joint and an adjustment seat refrigeration input joint. After introducing a refrigeration medium, it can take away the heat conducted to the optical adjustment seat during the operation of the semiconductor cooler, so as to better control the constant temperature.
[0010] Preferably, the head and tail of the refrigeration channel are equipped with an adjustment seat refrigeration output joint and an adjustment seat refrigeration input joint. The refrigeration medium enters through the adjustment seat refrigeration input joint and outputs through the adjustment seat refrigeration output joint, conducting the heat generated during the refrigeration of the semiconductor cooler to the optical adjustment seat for continuous cooling.
[0011] Preferably, the optical fixing module includes an optical fixing seat, a transverse adjustment screw pair, a longitudinal adjustment screw pair, and a constant temperature control main board; the longitudinal adjustment screw pair and the transverse adjustment screw pair are installed on the optical fixing seat to control the direction and position of the light source.
[0012] Preferably, for the laser constant temperature control, the constant temperature control main board calculates and outputs a control signal to the semiconductor cooler, and in real time controls the refrigeration capacity of the semiconductor cooler to control the temperature of the laser temperature control copper seat, locking the temperature of the laser at a fixed temperature point, so as to achieve the constant temperature control of the laser.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] In the present utility model, the temperature sensor in the optical adjustment module receives the signal of temperature change, and the constant temperature control main board calculates and outputs a control signal to the semiconductor cooler, and in real time controls the refrigeration capacity of the semiconductor cooler to control the temperature of the laser temperature control copper seat, locking the temperature of the laser at a fixed temperature point. The refrigeration fluid enters through the adjustment seat refrigeration input joint and outputs through the adjustment seat refrigeration output joint, continuously cooling the heat conducted from the back of the semiconductor cooler to the optical adjustment seat during refrigeration. Thus, the constant temperature control of the laser is realized, ensuring the measurement stability of the analytical instrument and extending the service life of the instrument. Brief Description of the Drawings
[0015] Figure 1 This is the structural diagram of the optical adjustment module of the present utility model;
[0016] Figure 2 This is the exploded view of the present utility model.
[0017] In the figures: 1. Longitudinal adjustment screw pair; 2. Transverse adjustment screw pair; 3. Optical fixing seat; 4. Constant temperature control main board; 5. Optical adjustment seat; 6. Laser PCB; 7. Laser; 8. Laser temperature control copper seat; 10. Temperature sensor; 11. Refrigeration input joint of the adjustment seat; 12. Refrigeration output joint of the adjustment seat Detailed Embodiment
[0018] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0019] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0022] Embodiment, please refer to Figure 1-2 , the present utility model provides a technical solution:
[0023] A multi-dimensional calibration device for laser constant temperature control, including an optical fixing module and an optical adjustment module. The optical fixing module includes an optical fixing base 3, a transverse adjustment screw pair 2, a longitudinal adjustment screw pair 1, and a constant temperature control main board 4. When the transverse adjustment screw pair 2 rotates, the light source moves left and right. When the longitudinal adjustment screw pair 1 rotates, the light source moves up and down. During simultaneous operation, the emission position of the light source of the laser 7 can be adjusted arbitrarily. The optical adjustment module includes an optical adjustment base 5, a laser 7, a laser temperature control copper seat 8, a temperature sensor 10, a semiconductor refrigerator 9, an adjustment seat refrigeration input joint 11, and an adjustment seat refrigeration output joint 12.
[0024] The longitudinal adjustment screw pair 1 and the transverse adjustment screw pair 2 are installed on the optical fixing base 3 to adjust the direction and position of the light source. The constant temperature control main board 4 is installed on the back of the optical fixing base 3 to control the temperature of the device.
[0025] The optical adjustment module includes a laser temperature control copper seat 8. The laser temperature control copper seat 8 is tightly fixed together with the semiconductor refrigerator 9. The gap between the laser 7 welded on the laser PCB 6 and the laser temperature control copper seat 8 is filled with heat-conducting grease. The laser temperature control copper seat 8 and the semiconductor refrigerator 9 are fixed together in the optical adjustment base 5.
[0026] Among them, the optical adjustment base 5 is internally designed with a refrigeration channel. The adjustment seat refrigeration output joint 12 and the adjustment seat refrigeration input joint 11 are installed at the head and tail of the refrigeration channel. After introducing a refrigeration medium, it can take away the heat conducted to the optical adjustment base 5 during the operation of the semiconductor refrigerator 9, so as to better control the constant temperature.
[0027] The temperature sensor 10 in the optical adjustment module receives the signal of temperature change, and outputs a control signal to the semiconductor refrigerator 9 through the operation of the constant temperature control main board 4, and controls the refrigeration capacity of the semiconductor refrigerator 9 in real time to control the temperature of the laser temperature control copper seat 8, locking the temperature of the laser 7 at a fixed temperature point. At the same time, the heat generated during the refrigeration on the other side of the semiconductor refrigerator 9 is taken away by the medium input through the adjustment seat refrigeration input joint 11 by the closely attached optical adjustment base 5, so as to realize the constant temperature control of the laser 7.
[0028] As a preferred solution of the present invention, the optical adjustment base 5 is designed with a heat-conducting flow channel. The adjustment seat refrigeration input joint 11 and the adjustment seat refrigeration output joint 12 are respectively installed at the inlet and outlet ends of the heat-conducting flow channel. The heat-conducting medium enters the optical adjustment base through the adjustment seat refrigeration input joint 11, flows through the flow channel, and flows out through the adjustment seat refrigeration output joint 12, taking away the heat of the optical adjustment base 5.
[0029] As a preferred embodiment of the present utility model, the laser temperature control copper seat 8 is made of pure copper, enabling it to have good heat conduction performance. The laser temperature control copper seat 8 is fixed to the cold side of the semiconductor refrigerator 9. When the semiconductor refrigerator 9 refrigerates, the laser temperature control copper seat 8 can accurately adjust the temperature. The hot side of the semiconductor refrigerator 9 is fixed to the optical adjustment seat 5, and the heat generated during refrigeration is directly dissipated by the medium flowing through the flow channel.
[0030] As a preferred embodiment of the present utility model, the mounting holes on the laser temperature control copper seat 8 are closely fitted with the laser 7, and the laser 7 is welded to the laser PCB 6. The gaps between the laser 7, the laser PCB 6, and the laser upper temperature control copper seat 8 are filled with thermal grease to ensure good temperature control between the laser 7 and the laser temperature control copper seat 8.
[0031] As a preferred embodiment of the present utility model, the constant temperature control main board 4 is fixed to the optical fixing seat 3, and is powered and communicates with the laser PCB 6 fixed to the optical adjustment seat 5 through wires.
[0032] As a preferred embodiment of the present utility model, when the heat dissipation requirements can be met, the horizontal adjustment screw pair 2 and the vertical adjustment screw pair 1 are fixed to the optical fixing seat 3. When the horizontal adjustment screw pair 2 rotates, the light source moves left and right, and when the vertical adjustment screw pair 1 rotates, the light source moves up and down. When operating simultaneously, the emission position of the laser 7 light source can be adjusted arbitrarily.
[0033] The working process of the present utility model: The temperature sensor in the optical adjustment module receives the signal of temperature change, outputs a control signal to the semiconductor refrigerator through the operation of the constant temperature control main board, and controls the refrigeration capacity of the semiconductor refrigerator in real time to control the temperature of the laser temperature control copper seat, locking the temperature of the laser at a fixed temperature point. At the same time, the heat generated when the other side of the semiconductor refrigerator refrigerates is taken away by the medium input through the adjustment seat refrigeration input joint by the closely attached optical adjustment seat, thereby realizing the constant temperature control of the laser. This solution is mainly applicable to scenarios where the working environment temperature of the laser is relatively high. In such scenarios, the laser itself has a large heat dissipation requirement, and at the same time, the laser is extremely sensitive to changes in the ambient temperature. Fluctuations in the ambient temperature will cause fluctuations in the absorption spectral lines of the laser gas, resulting in measurement drift. This solution achieves the purpose of controlling the laser environment at a constant temperature while dissipating heat, thereby providing a stable and suitable working environment temperature for the laser and ensuring the measurement stability of the analytical instrument.
[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-dimensional calibration device for constant temperature control of a laser, comprising an optical fixing module and an optical adjustment module, characterized in that: The optical fixing module is designed with a longitudinal adjustment thread pair (1), a transverse adjustment thread pair (2), an optical fixing seat (3) and a constant temperature control main board (4); the longitudinal adjustment thread pair (1) and the transverse adjustment thread pair (2) are installed on the optical fixing seat (3) to adjust the direction and position of the light source; the constant temperature control main board (4) is installed on the back of the optical fixing seat (3) to control the temperature of the device; The optical adjustment module comprises a laser temperature control copper seat (8), the laser temperature control copper seat (8) and the semiconductor refrigerator (9) are tightly fixed together, the laser (7) is welded on the laser PCB (6), the gap between the laser temperature control copper seat (8) and the laser is filled with thermal grease, and the laser temperature control copper seat (8) and the semiconductor refrigerator (9) are fixed together in the optical adjustment seat (5); The optical adjustment seat (5) is internally designed with a cooling channel, and the cooling channel is provided with an adjustment seat cooling output connector (12) and an adjustment seat cooling input connector (11) at the head and tail. After the cooling medium is introduced, the heat transferred from the semiconductor refrigerator (9) to the optical adjustment seat (5) during operation can be taken away, thereby achieving better constant temperature control.
2. A laser constant temperature control multi-dimensional calibration device according to claim 1, characterized in that: The refrigeration channel is provided with an adjustment seat refrigeration output joint (12) and an adjustment seat refrigeration input joint (11) at the head and tail, and the refrigeration medium enters through the adjustment seat refrigeration input joint (11) and is output through the adjustment seat refrigeration output joint (12), so that the heat generated by the semiconductor refrigerator during refrigeration is transferred to the optical adjustment seat for continuous cooling.
3. A laser constant temperature control multi-dimensional calibration device according to claim 2, characterized in that: The optical fixing module comprises an optical fixing seat, a transverse adjustment thread pair, a longitudinal adjustment thread pair, and a constant temperature control mainboard; the longitudinal adjustment thread pair (1) and the transverse adjustment thread pair (2) are mounted on the optical fixing seat (3) to adjust the direction and position of the light source.
4. A laser constant temperature control multi-dimensional calibration device according to claim 3, characterized in that: The laser constant temperature control is that the constant temperature control mainboard calculates and outputs a control signal to the semiconductor refrigerator, controls the cooling capacity of the semiconductor refrigerator in real time, thereby controlling the temperature of the laser temperature control copper seat, and locks the temperature of the laser at a fixed temperature point, thereby realizing constant temperature control of the laser.