Intelligent temperature control laser shell of special light transmission equipment

Abstract

The utility model provides an intelligent temperature control laser shell of special optical transmission equipment, which belongs to the crossing field of special optical fibers and lasers and comprises a shell, and a dustproof shell component and a temperature control component for cooling the lasers are mounted in the shell. According to the utility model, through the housing assembly, the laser is installed inside the housing, then the laser is started, the laser enters the resonant cavity, the laser is reflected for multiple times in the cavity through the holophote to be enhanced, the enhanced laser is stimulated by the gain medium to radiate and amplify an optical signal, and finally the laser is output through the partial reflector. And meanwhile, the residual light maintains resonance, the seam of the laser and the shell is sealed through a sealing ring, and the seams of the total reflection mirror, the partial reflection mirror, the gain medium and the resonant cavity are sealed through epoxy resin glue.

Description

Technical Field

[0001] This utility model relates to the intersection of special optical fibers and lasers, specifically to a smart temperature-controlled laser housing for special optical transmission equipment. Background Technology

[0002] The laser housing is a key component of the laser. It not only provides physical support and protection for the internal optical and electrical core modules, but also ensures the stable operation of the laser in complex environments through structural design, material selection and temperature control. Lasers typically generate a lot of heat during long-term use, which can cause thermal drift of optical components, affecting the quality and directivity of the laser beam. Furthermore, if the heat cannot be transferred in time, high temperatures may reduce the lifespan of the laser or even cause it to be damaged, resulting in significant economic losses.

[0003] A search revealed that Chinese patent CN221633080U discloses "a laser housing, comprising: a housing assembly and a fixing mechanism, wherein the fixing mechanism includes a pressure plate, the pressure plate has positioning cylinders and fixing plates at both ends, the positioning cylinders are connected to threaded rods and connecting plates, and the connecting plates have positioning posts at both ends; the beneficial effects are: this device helps to save housing material and reduce costs, and at the same time, the laser housing has no narrow edge for screw fixing on the side, effectively improving the flatness of the bottom of the housing, avoiding the problem of poor flatness of the bottom of the laser caused by the slight deformation of the narrow edge of the laser housing during processing, thus ensuring the quality of the laser." However, the following defects still exist:

[0004] (1) The equipment did not treat the seams of the laser housing. For a high-precision device like a laser, conductive particles in the dust may be deposited on the surface of the circuit board, causing short circuits or arc discharges. Furthermore, the unsealed seams may allow moisture to enter, combine with dust to form a conductive solution, and corrode the metal contact points.

[0005] (2) The device is not equipped with a cooling device. The increase in internal temperature of the laser will change the refractive index of the gain medium, resulting in a decrease in photon transmission efficiency. Furthermore, for high-power lasers used for a long time, it may directly cause damage to the laser. To address this, a special optical transmission device with intelligent temperature control laser housing is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problem that current devices lack proper treatment of the seams in the laser housing. For high-precision devices like lasers, conductive particles from dust can accumulate on the circuit board surface, causing short circuits or arcing. Furthermore, unsealed seams allow moisture to infiltrate, combining with dust to form a conductive solution that corrodes metal contacts. The lack of a cooling device also means that increased internal laser temperature alters the refractive index of the gain medium, leading to decreased photon transmission efficiency and potentially damaging high-power lasers used for extended periods. Therefore, this invention proposes a smart temperature-controlled laser housing for special optical transmission devices to solve the problems mentioned in the background.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a special optical transmission device intelligent temperature-controlled laser housing, including an outer shell, wherein a housing component for dust prevention and a temperature control component for cooling the laser are installed inside the outer shell;

[0009] The housing assembly includes a laser slidably mounted inside the housing. A protrusion is mounted on one side of the laser, and a sealing ring made of fluororubber is provided around the protrusion. A resonant cavity is welded inside the housing. A total reflection mirror, a partial reflection mirror, and a gain medium are installed inside the resonant cavity. The gain medium is made of Nd:YAG crystal. Epoxy resin is bonded to the joints between the total reflection mirror, the partial reflection mirror, the gain medium, and the resonant cavity. Four partitions are welded inside the housing.

[0010] As a preferred technical solution of this utility model, the temperature control component includes a first heat-conducting plate installed on the top of the inner shell, and there are two first heat-conducting plates. A second heat-conducting plate is installed on the bottom of the inner shell, and there are two second heat-conducting plates. A first temperature sensor is installed on one side of the laser, and a second temperature sensor is installed on one side of the resonant cavity. The first and second temperature sensors are PT1000 sensors. A signal processing module, a calibration module, a control module, and a frequency converter are installed inside the shell. The signal processing module is an ADS1248, the calibration module is an STM32F407, the control module is an LM393, and the frequency converter is an FR-S500E.

[0011] As a preferred technical solution of this utility model, a thermoelectric cooler is installed on the top of the first heat-conducting plate. The thermoelectric cooler is model PT4-12-F2-3030-TA-W6. The top of the thermoelectric cooler is coated with thermal grease, and a thermally conductive sheet is bonded to the top of the thermal grease. Fins are provided on the top of the thermally conductive sheet.

[0012] As a preferred technical solution of this utility model, the top and bottom of the outer shell are threadedly connected with bolts, and the number of bolts is four, with spring washers provided on the periphery of each of the four bolts.

[0013] As a preferred technical solution of this utility model, a cover is hinged to one side of the outer shell. The cover is made of aluminum alloy, and a pad is bonded to the seam between the cover and the outer shell. The pad is made of fluororubber.

[0014] As a preferred technical solution of this utility model, a support plate is welded to the bottom of the outer shell, and there are two support plates. The bottom of each of the two support plates is provided with an anti-slip pad, and the anti-slip pad is made of rubber.

[0015] As a preferred embodiment of this invention, a solar panel and a battery are installed on the top of the outer casing, with the battery located inside the casing.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. With the housing assembly in place, the laser is first installed inside the housing, then the laser is turned on. The laser enters the resonant cavity, and then the total reflection mirror amplifies the laser by reflecting it multiple times within the cavity. The amplified laser then amplifies the optical signal through stimulated emission of the gain medium. Finally, the laser is output through the partial reflection mirror, while the remaining light maintains resonance. The joint between the laser and the housing is sealed with a sealing ring, and the joints between the total reflection mirror, the partial reflection mirror, the gain medium, and the resonant cavity are sealed with epoxy resin.

[0018] 2. Through the set temperature control component, the temperature of the laser and the resonant cavity are detected by the first temperature sensor and the second temperature sensor respectively during use. Then, the temperature signal is processed by the signal processing module to extract the effective temperature information. Then, the temperature information is compensated for by the calibration module. Then, the temperature is detected by the control module. If the temperature is too high, the frequency converter is controlled to reduce the power of the laser to ensure safety. At the same time, heat can be quickly transferred through the first heat conduction plate and the second heat conduction plate. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a smart temperature-controlled laser housing for a special optical transmission device provided by this utility model;

[0020] Figure 2 Rear view of a special optical transmission device housing with intelligent temperature control laser provided by this utility model;

[0021] Figure 3 This utility model provides a special optical transmission device housing with intelligent temperature control for lasers. Figure 2 A schematic diagram of the planar cross-sectional structure at point AA;

[0022] Figure 4 This utility model provides a special optical transmission device housing with intelligent temperature control for lasers. Figure 2 One of the three-dimensional cross-sectional structural diagrams at point AA;

[0023] Figure 5 This utility model provides a special optical transmission device housing with intelligent temperature control for lasers. Figure 2 The second schematic diagram of the three-dimensional cross-sectional structure at point AA.

[0024] The diagram shows: 1. Outer shell; 2. Shell assembly; 3. Temperature control assembly; 201. Laser; 202. Protrusion; 203. Sealing ring; 204. Resonant cavity; 205. Total reflection mirror; 206. Partial reflection mirror; 207. Gain medium; 208. Epoxy resin adhesive; 209. Partition plate; 301. First heat-conducting plate; 302. Second heat-conducting plate; 303. First temperature sensor; 304. Second temperature sensor; 305. Signal processing module; 306. Calibration module; 307. Control module; 308. Frequency converter; 4. Thermoelectric cooler; 5. Thermal grease; 6. Thermal pad; 7. Fin; 8. Bolt; 9. Spring washer; 10. Cover; 11. Pad layer; 12. Support plate; 13. Anti-slip pad; 14. Solar panel; 15. Battery. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1 and Figure 4 As shown, this embodiment proposes a special optical transmission device intelligent temperature-controlled laser housing, including an outer shell 1, and an outer shell assembly 2 for dust prevention and a temperature control assembly 3 for cooling the laser 201 installed inside the outer shell 1.

[0030] like Figure 5 As shown, the housing assembly 2 includes a laser 201 slidably mounted inside the housing 1. A protrusion 202 is mounted on one side of the laser 201, and a sealing ring 203 is provided around the protrusion 202. The sealing ring 203 is made of fluororubber. A resonant cavity 204 is welded inside the housing 1. A total reflection mirror 205, a partial reflection mirror 206, and a gain medium 207 are installed inside the resonant cavity 204. The gain medium 207 is made of Nd:YAG crystal. Epoxy resin adhesive 208 is bonded to the joints between the total reflection mirror 205, the partial reflection mirror 206, and the gain medium 207 and the resonant cavity 204 to seal and prevent dust from entering. A partition 209 is welded inside the housing 1. There are four partitions 209, which are used to separate and fix the cavity. In use, the laser 201 is first installed inside the housing 1, and then the laser 201 is turned on. The laser enters the resonant cavity 204, and then the laser is enhanced by multiple reflections in the cavity through the total reflection mirror 205. The enhanced laser is amplified by stimulated emission through the gain medium 207. Finally, the laser is output through the partial reflection mirror 206, while the remaining light maintains resonance. The joint between the laser 201 and the housing 1 is sealed by the sealing ring 203, and the joint between the total reflection mirror 205, the partial reflection mirror 206 and the gain medium 207 and the resonant cavity 204 is sealed by epoxy resin glue 208.

[0031] like Figure 3 and Figure 5As shown, the temperature control assembly 3 includes two first heat-conducting plates 301 installed at the top inside the housing 1, and two second heat-conducting plates 302 installed at the bottom inside the housing 1. These plates are used to transfer heat generated by the device and prevent the laser 201 from overheating. A first temperature sensor 303 is installed on one side of the laser 201 to detect its temperature, and a second temperature sensor 304 is installed on one side of the resonant cavity 204 to detect its temperature. Both the first and second temperature sensors 303 and 304 are PT1000 sensors. The housing 1 contains a signal processing module 305, a calibration module 306, a control module 307, and a frequency converter 308. Block 305 is model ADS1248, calibration module 306 is model STM32F407, control module 307 is model LM393, and inverter 308 is model FR-S500E. In use, the temperature of laser 201 and resonant cavity 204 are detected by the first temperature sensor 303 and the second temperature sensor 304 respectively. Then, the temperature signal is processed by the signal processing module 305 to extract the effective temperature information. Then, the temperature information is compensated for by the calibration module 306. Then, the temperature is detected by the control module 307. If the temperature is too high, the inverter 308 is controlled to reduce the power of laser 201 to ensure safety. At the same time, heat can be quickly transferred through the first heat conduction plate 301 and the second heat conduction plate 302.

[0032] like Figure 3 As shown, a thermoelectric cooler 4 is installed on the top of the first heat-conducting plate 301. The thermoelectric cooler 4 is model PT4-12-F2-3030-TA-W6. The top of the thermoelectric cooler 4 is coated with thermal grease 5. A thermally conductive sheet 6 is bonded to the top of the thermal grease 5. Fins 7 are provided on the top of the thermally conductive sheet 6. In use, the thermoelectric cooler 4 cools the first heat-conducting plate 301. Then, the thermal grease 5 transfers the heat from the heat dissipation surface of the thermoelectric cooler 4 to the thermally conductive sheet 6. The fins 7 can expand the heat dissipation area and accelerate heat dissipation.

[0033] like Figure 4 As shown, the top and bottom of the outer casing 1 are threaded with bolts 8, and there are four bolts 8. Each of the four bolts 8 is provided with a spring washer 9 on its periphery. In use, the laser 201 is fixed by the bolts 8, which can install the laser 201. The spring washer 9 can prevent the bolts 8 from loosening due to vibration.

[0034] like Figure 5As shown, a cover 10 is hinged to one side of the outer shell 1. The cover 10 is made of aluminum alloy. A pad 11 is bonded to the seam between the cover 10 and the outer shell 1. The pad 11 is made of fluororubber. When in use, the cover 10 can prevent dust from entering the resonant cavity 204 when the laser 201 is not in use, and the pad 11 further seals the cavity.

[0035] like Figure 1 As shown, a support plate 12 is welded to the bottom of the outer casing 1. There are two support plates 12, and anti-slip pads 13 are provided on the bottom of both support plates 12. The anti-slip pads 13 are made of rubber and can prevent the equipment from shifting to the side when it is in use.

[0036] like Figure 1 and Figure 4 As shown, a solar panel 14 and a battery 15 are installed on the top of the outer casing 1. The battery 15 is located inside the outer casing 1. When in use, the solar panel 14 can generate a certain amount of electricity, reducing power consumption.

[0037] Specifically, in use, the intelligent temperature-controlled laser housing of this special optical transmission device works as follows: First, the laser 201 is installed inside the housing 1. Then, the laser 201 is activated, and the laser light enters the resonant cavity 204. The laser light is then amplified through multiple reflections within the cavity by the total reflection mirror 205. The amplified laser light is then amplified by stimulated emission through the gain medium 207. Finally, the laser light is output through the partial reflection mirror 206, while the remaining light maintains resonance. The joint between the laser 201 and the housing 1 is sealed by the sealing ring 203, and the joints between the total reflection mirror 205, the partial reflection mirror 206, the gain medium 207, and the resonant cavity 204 are sealed by epoxy resin adhesive 208 (e.g., ...). Figure 5 As shown), the temperatures of the laser 201 and the resonant cavity 204 are detected by the first temperature sensor 303 and the second temperature sensor 304, respectively. The temperature signals are then processed by the signal processing module 305 to extract valid temperature information. The temperature information is then compensated for errors by the calibration module 306. Finally, the temperature is monitored by the control module 307. If the temperature is too high, the inverter 308 is controlled to reduce the power of the laser 201 to ensure safety. Simultaneously, heat can be quickly transferred through the first heat-conducting plate 301 and the second heat-conducting plate 302 (e.g., ...). Figure 3 and Figure 5 (As shown).

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A special optical transmission equipment intelligent temperature control laser shell, comprising a shell (1), characterized in that, The housing (1) is equipped with a dustproof housing assembly (2) and a temperature control assembly (3) for cooling the laser (201); The housing assembly (2) includes a laser (201) slidably mounted inside the housing (1). A protrusion (202) is mounted on one side of the laser (201), and a sealing ring (203) is provided on the periphery of the protrusion (202). The sealing ring (203) is made of fluororubber. A resonant cavity (204) is welded inside the housing (1). A total reflection mirror (205), a partial reflection mirror (206), and a gain medium (207) are installed inside the resonant cavity (204). The gain medium (207) is made of Nd:YAG crystal. Epoxy resin adhesive (208) is bonded to the joints between the total reflection mirror (205), the partial reflection mirror (206), the gain medium (207), and the resonant cavity (204). Four partitions (209) are welded inside the housing (1).

2. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 1, characterized in that, The temperature control assembly (3) includes two first heat-conducting plates (301) installed on the top of the inner shell (1) and two second heat-conducting plates (302) installed on the bottom inner shell (1). A first temperature sensor (303) is installed on one side of the laser (201) and a second temperature sensor (304) is installed on one side of the resonant cavity (204). The temperature sensor (304) is a PT1000 sensor. The housing (1) contains a signal processing module (305), a calibration module (306), a control module (307), and a frequency converter (308). The signal processing module (305) is an ADS1248, the calibration module (306) is an STM32F407, the control module (307) is an LM393, and the frequency converter (308) is an FR-S500E.

3. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 2, characterized in that, A thermoelectric cooler (4) is installed on the top of the first heat-conducting plate (301). The thermoelectric cooler (4) is model PT4-12-F2-3030-TA-W6. Thermal grease (5) is applied to the top of the thermoelectric cooler (4). A thermally conductive sheet (6) is bonded to the top of the thermally conductive grease (5). Fins (7) are provided on the top of the thermally conductive sheet (6).

4. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 1, characterized in that, The top and bottom of the outer casing (1) are threaded with bolts (8), and there are four bolts (8). Each of the four bolts (8) is provided with a spring washer (9) on its periphery.

5. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 1, characterized in that, A cover (10) is hinged to one side of the outer shell (1). The cover (10) is made of aluminum alloy. A pad (11) is bonded to the seam between the cover (10) and the outer shell (1). The pad (11) is made of fluororubber.

6. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 1, characterized in that, The bottom of the outer shell (1) is welded with a support plate (12), and there are two support plates (12). The bottom of each of the two support plates (12) is provided with an anti-slip pad (13), and the anti-slip pad (13) is made of rubber.

7. The intelligent temperature-controlled laser housing for a special optical transmission device according to claim 1, characterized in that, A solar panel (14) and a battery (15) are mounted on the top of the outer casing (1), with the battery (15) located inside the outer casing (1).

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