Fiber laser temperature control device, fiber laser and medical equipment

Abstract

The utility model provides an optical fiber laser temperature control device, an optical fiber laser and medical equipment. The optical fiber laser temperature control device comprises a semiconductor cooler, a thermistor, a heat conducting plate and a temperature control module, an optical fiber mounting groove is formed in one surface of the heat-conducting plate and is used for mounting an optical fiber; a semiconductor cooler is mounted on the other surface of the heat-conducting plate; the heat-conducting plate comprises a temperature measuring point, and the thermistor is installed at the temperature measuring point and conducts heat transfer with the heat-conducting plate. The semiconductor cooler and the thermistor are both in communication connection with the temperature control module, and the temperature control module is used for controlling the semiconductor cooler to operate based on the detection temperature output by the thermistor. According to the embodiment of the utility model, the conductor refrigerator is used for adjusting the working temperature of the optical fiber, the thermistor is used for real-time measurement, the temperature control device is simple and efficient, has few devices, is convenient for production and laser miniaturization, supports refrigeration and heating, can meet different temperature control requirements, and ensures stable laser output.

Description

Technical Field

[0001] This utility model relates to the field of laser temperature control and installation technology, and more specifically, to a fiber laser temperature control device, a fiber laser, and medical equipment. Background Technology

[0002] A fiber laser is a laser device composed of optical fibers and a laser medium. The resonant cavity is a crucial component in the laser's output power and beam quality.

[0003] In a fiber laser, the laser emitted from the pump source is fed back and oscillated by the resonant cavity, releasing energy to form a stable laser output. However, the fiber and grating, which are important components of the resonant cavity, are easily affected by the operating temperature, leading to unstable laser output. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a temperature control device for a fiber laser, comprising a semiconductor cooler, a thermistor, a heat-conducting plate, and a temperature control module. One side of the heat-conducting plate has a fiber optic mounting slot for mounting optical fibers. The semiconductor cooler is mounted on the other side of the heat-conducting plate. The heat-conducting plate includes a temperature measuring point, and the thermistor is mounted at the temperature measuring point and transfers heat with the heat-conducting plate. Both the semiconductor cooler and the thermistor are communicatively connected to the temperature control module, which controls the operation of the semiconductor cooler based on the detected temperature output by the thermistor.

[0005] The fiber laser temperature control device provided in this embodiment uses a conductor cooler to regulate the working temperature of the fiber and a thermistor for real-time measurement. The temperature control device is simple, efficient, and has few components, which facilitates production and laser miniaturization. The temperature control module can automatically adjust its operation, supports both cooling and heating, and can meet different temperature control requirements to ensure stable laser output.

[0006] Optionally, it further includes heat dissipation fins, which include a substrate and fins; the semiconductor cooler is connected to the substrate and performs heat transfer with the substrate.

[0007] In this embodiment of the invention, the fiber laser temperature control device may further include heat dissipation fins, which include a substrate and fins, thereby improving the heat dissipation effect.

[0008] Optionally, it also includes an interface board, which is mounted on the heat sink fins; the leads of the semiconductor cooler and the thermistor are installed in the sockets of the interface board, and the interface board is communicatively connected to the temperature control module.

[0009] In this embodiment of the utility model, the fiber laser temperature control device may further include an interface board, which is used to realize communication between the semiconductor cooler, the thermistor, and the temperature control module.

[0010] Optionally, the thermistor is fixed to the temperature measuring point by thermally conductive adhesive, and the probe of the thermistor is in contact with the heat-conducting plate around its perimeter by the thermally conductive adhesive.

[0011] In this embodiment of the invention, the thermistor is cured at the temperature measuring point using thermally conductive adhesive with good thermal conductivity, ensuring the accuracy of the thermistor's temperature measurement.

[0012] Optionally, the semiconductor cooler is coated with a thermally conductive material on both sides, with one side contacting the heat-conducting plate through the thermally conductive material and the other side contacting the substrate through the thermally conductive material.

[0013] In this embodiment of the invention, thermally conductive material is applied between the heat-conducting plate, the semiconductor cooler, and the heat sink fins to improve thermal conductivity.

[0014] Optionally, the heat-conducting plate includes fixing holes; fasteners fix the heat-conducting plate and the heat dissipation fins through the fixing holes.

[0015] In this embodiment of the utility model, the heat-conducting plate is provided with fixing holes, and the heat-conducting plate, the semiconductor cooler, and the heat sink fins are kept stably connected by the fixing holes and fasteners.

[0016] Optionally, the heat-conducting plate is a copper plate.

[0017] In this embodiment of the invention, the heat-conducting plate is a copper plate, which can ensure a high heat conduction speed.

[0018] Optionally, the interface board includes a serial interface.

[0019] In this embodiment of the invention, the temperature control device can automatically adjust its operation by setting and detecting the temperature via a serial port.

[0020] This utility model provides a fiber laser, including any of the above-mentioned fiber laser temperature control devices and controllers; the temperature control module is communicatively connected to the controller.

[0021] This utility model provides a medical device including the aforementioned fiber laser.

[0022] The laser and medical equipment provided in this embodiment of the present invention can achieve the same technical effect as the above-mentioned fiber laser temperature control device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 A top view of the fiber laser temperature control device provided in an embodiment of this utility model;

[0025] Figure 2 A side view of the fiber laser temperature control device provided in an embodiment of this utility model;

[0026] Figure 3 A front view of the fiber laser temperature control device provided in an embodiment of this utility model;

[0027] Figure 4 A logic structure diagram of the fiber laser temperature control device provided in this embodiment of the utility model. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0029] This utility model provides a fiber laser temperature control device that uses a semiconductor cooler to regulate the operating temperature of the fiber, which can effectively generate and output laser light while improving the stability of the device.

[0030] The fiber laser temperature control device described in this embodiment includes a semiconductor cooler, a thermistor, a heat-conducting plate, and a temperature control module. The semiconductor cooler supports both cooling and heating, thereby flexibly adjusting the operating temperature of the fiber optic cable to ensure stable laser output. The thermistor measures the temperature and provides real-time temperature readings to the temperature control module, enabling the module to adjust the input current of the semiconductor cooler in a timely manner, maintaining the cooler at a preset operating temperature. The heat-conducting plate serves both to fix the fiber optic cable and to conduct heat between the fiber optic cable and the semiconductor cooler, acting as a heat-conducting medium.

[0031] Specifically, one side of the heat-conducting plate is provided with an optical fiber mounting slot for mounting optical fibers and / or gratings; the other side of the heat-conducting plate is equipped with the aforementioned semiconductor cooler.

[0032] The heat-conducting plate has temperature measuring points, and a thermistor is installed at these measuring points and transfers heat with the heat-conducting plate. Optionally, the thermistor is fixed to the measuring point with thermally conductive adhesive, and the thermistor probe is in contact with the heat-conducting plate from all sides by the thermally conductive adhesive. The thermistor is cured at the measuring point with thermally conductive adhesive, and its probe must be in contact with the object being measured from all sides.

[0033] Specifically, the aforementioned semiconductor cooler and thermistor are both connected in communication with the temperature control module, which is used to control the operation of the semiconductor cooler based on the temperature detected by the thermistor output.

[0034] The temperature control module can determine whether the actual operating temperature measured by the thermistor is within the preset operating temperature range. If the temperature is too high or too low, the temperature control module adjusts the input current of the thermoelectric cooler to restore the thermoelectric cooler temperature to the preset operating temperature range. Simultaneously, the temperature control module can also transmit the temperature measurement results to the laser controller.

[0035] The fiber laser temperature control device provided in this embodiment uses a conductor cooler to regulate the working temperature of the fiber and a thermistor for real-time measurement. The temperature control device is simple, efficient, and has few components, which facilitates production and laser miniaturization. The temperature control module can automatically adjust its operation, supports both cooling and heating, and can meet different temperature control requirements to ensure stable laser output.

[0036] Furthermore, to improve heat dissipation, the aforementioned fiber laser temperature control device may also include heat dissipation fins, which consist of a substrate and fins. The aforementioned semiconductor cooler can be connected to the substrate and conduct heat transfer between them. The substrate of the heat dissipation fins primarily supports the installation and fixation of the heat source, playing a role in temperature equalization and ensuring that heat is evenly distributed.

[0037] The aforementioned fiber laser temperature control device may further include an interface board for communication between the thermoelectric cooler, the thermistor, and the temperature control module. Specifically, the leads of the thermoelectric cooler and the thermistor are installed in sockets on the interface board, and the interface board is communicatively connected to the temperature control module. For example, the interface board is mounted on the aforementioned heat sink fins, and the interface board is connected to the temperature control module via a cable.

[0038] Optionally, the heat-conducting plate, the thermoelectric cooler, and the heat sink fins are arranged sequentially, and a thermally conductive material is applied between the components to improve thermal conductivity. For example, thermally conductive material is applied to both sides of the thermoelectric cooler, with one side contacting the heat-conducting plate through the thermally conductive material and the other side contacting the substrate through the thermally conductive material.

[0039] To maintain a stable connection between the heat-conducting plate, the thermoelectric cooler, and the heat sink fins, fixing holes are provided in the heat-conducting plate, and fasteners are used to fix the heat-conducting plate and the heat sink fins through these fixing holes.

[0040] Optionally, the heat-conducting plate is made of copper, which can ensure a high heat conduction speed.

[0041] Optionally, the interface board includes a serial interface. The temperature control device can set and detect the temperature via the serial port and automatically adjust its operation.

[0042] Figure 1 A top view of the fiber laser temperature control device provided in an embodiment of the present invention is shown. Figure 2 A side view of the fiber laser temperature control device is shown. Figure 3 A front view of the temperature control device for a fiber laser is shown.

[0043] like Figure 1-3 As shown, an exemplary fiber laser temperature control device includes a semiconductor cooler 10, a thermistor 20, a copper block (i.e., a heat-conducting plate) 30, an interface board 70, and heat dissipation fins 80.

[0044] The thermistor 20 probe is embedded in the temperature measuring point of the copper block 30 and cured with thermally conductive adhesive. The probe must be in contact with the object on all four sides. Thermally conductive material (such as thermal grease) is evenly applied to both sides of the thermoelectric cooler 10 and installed in the mounting slots on the heat sink fins. The copper block 30 is mounted on the thermoelectric cooler 10.

[0045] T-shaped washers 40 are inserted into the fixing holes of copper blocks 30, and screws 50 are then inserted and tightened with a torque wrench. Thermal conductive material is applied to the fiber optic mounting slot 60, and the grating is then installed into the fiber optic mounting slot 60, secured on both sides with fiber optic tape. Interface board 70 is mounted on heat sink fins 80, and the leads of the thermoelectric cooler 10 and thermistor 20 are then connected to the interface board socket.

[0046] Interface board 70 is connected to the temperature control module via a cable. Interface board 70 is connected to the temperature control module, which communicates with the microcontroller unit (MCU) and is also electrically connected to the power supply.

[0047] Figure 4 The diagram shows the logic structure of the fiber laser temperature control device provided in this embodiment of the invention. The temperature control module is connected to the MCU, thermistor, and semiconductor cooler respectively, and the power supply provides power to the above devices.

[0048] The thermistor can detect the temperature of the thermoelectric cooler in real time and feed the detection results back to the temperature control module. The temperature control module then processes the data and transmits the results to the MCU. Simultaneously, the temperature control module determines whether the actual operating temperature is within the preset range. If it is too high or too low, the temperature control module adjusts the input current of the thermoelectric cooler to restore its temperature to the preset operating temperature.

[0049] The fiber laser temperature control device provided in this embodiment is simple, efficient, and requires few components, making it easy to manufacture and miniaturize lasers. The temperature can be set and detected via a serial port, and the temperature control device can automatically adjust its operation. The temperature control device supports both cooling and heating, and can meet different temperature control requirements.

[0050] This utility model provides a fiber laser, including the above-mentioned fiber laser temperature control device and controller; the temperature control module is communicatively connected to the controller.

[0051] This utility model provides a medical device, characterized in that it includes the aforementioned fiber laser.

[0052] The laser and medical equipment provided in this embodiment of the present invention can achieve the same technical effect as the above-mentioned fiber laser temperature control device, and will not be described again here to avoid repetition.

[0053] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0054] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature control device for a fiber laser, characterized in that, The semiconductor refrigerator, the thermistor, the heat-conducting plate and the temperature control module are included. One side of the heat-conducting plate is provided with a fiber installation groove for installing optical fiber. The thermistor is installed at the temperature measuring point and in thermal transmission with the heat-conducting plate. The semiconductor refrigerator and the thermistor are in communication connection with the temperature control module.

2. The fiber laser temperature control device of claim 1, wherein, The heat-dissipating fin includes a base plate and a fin. The semiconductor refrigerator is connected with the base plate and in thermal transmission with the base plate.

3. The fiber laser temperature control device of claim 2, wherein, An interface plate is installed on the heat-dissipating fin. The lead wires of the semiconductor refrigerator and the thermistor are installed in the sockets of the interface plate.

4. The fiber laser temperature control device of claim 1, wherein, The thermistor is fixed on the temperature measuring point by heat-conducting glue.

5. The fiber laser temperature control device of claim 2, wherein, The probe of the thermistor is contacted with the heat-conducting plate by the heat-conducting glue.

6. The fiber laser temperature control device of claim 2, wherein, The semiconductor refrigerator is coated with heat-conducting material on both sides.

7. The fiber laser temperature control device of claim 3, wherein, One side of the semiconductor refrigerator is contacted with the heat-conducting plate by the heat-conducting material and the other side is contacted with the base plate by the heat-conducting material.

8. The fiber laser temperature control device of claim 3, wherein, The heat-conducting plate includes a fixing hole.

9. A fiber laser, characterized by, The fastener is used to fix the heat-conducting plate and the heat-dissipating fin.

10. A medical device, characterized by The heat-conducting plate is a copper plate. The interface plate includes a serial interface. The temperature control module is in communication connection with the controller. The fiber laser includes the temperature control device and the controller. The fiber laser includes the temperature control device.

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