Cooling mechanism of fiber laser

Abstract

The utility model relates to a cooling mechanism of an optical fiber laser, belongs to the field of lasers, and aims to solve the problems of high use cost and large occupied space due to the adoption of a water cooling mode in the conventional optical fiber laser. The cooling mechanism of the optical fiber laser comprises a shell, a radiator, a light-emitting assembly and a cooling fan, the shell is provided with a containing cavity with openings in the two ends, a first groove and a second groove, the first groove and the second groove are communicated with the containing cavity, and the first groove and the second groove are located in the two ends of the shell respectively; the radiator is located in the containing cavity and provided with a first side plate, a second side plate and a mounting plate, the first side plate and the second side plate are located on the two sides of the mounting plate respectively, and the first side plate and the second side plate are used for covering the two openings; the light-emitting assembly is fixed to the radiator. And the cooling fan is connected with the radiator. The optical fiber laser is cooled through the first groove, the second groove, the radiator and the cooling fan, the cooling efficiency is improved, the occupied space is reduced, and due to the fact that a water cooling machine is not adopted, the cost is saved.

Description

Technical Field

[0001] The present application relates to the field of lasers, and in particular, to a cooling mechanism for a fiber laser. Background Art

[0002] Fiber laser refers to a laser that uses glass optical fiber doped with rare earth elements as a gain medium. It is generally composed of a laser working medium, an excitation source, and a resonant cavity. Fiber lasers generate heat during operation because the gain medium absorbs the energy of the pump light. Since the conversion efficiency of the laser is not high, a considerable part of the energy is converted into heat. For solid-state lasers, a large amount of heat will cause uneven energy distribution inside the crystal, which will affect the output performance of the laser.

[0003] Existing fiber lasers mostly use water cooling to dissipate heat for the laser to ensure normal operation of the equipment. Although the water cooling method has fast heat dissipation, it requires the purchase of a water cooler, which increases the procurement cost. In addition, when in use, it consumes a lot of electricity, which increases the cost of use. The volume will become larger, occupying a large space, and it is not convenient to move and transport. Utility Model Content

[0004] The purpose of the present application is to provide a cooling mechanism for a fiber laser, so as to solve the problem that the existing water-cooled fiber laser has high cost and occupies a large space.

[0005] In order to solve the above problems, the present application adopts the following technical solutions:

[0006] The present application provides a cooling mechanism for a fiber laser, comprising:

[0007] A shell, comprising a receiving cavity with openings at both ends, a first groove and a second groove, wherein the first groove and the second groove are respectively connected to the receiving cavity, and the first groove and the second groove are respectively located at two ends of the shell;

[0008] A radiator is located in the accommodating cavity, and the radiator is provided with a first side plate, a second side plate and a mounting plate, the first side plate and the second side plate are respectively located on both sides of the mounting plate, and the first side plate and the second side plate are respectively used to cover the opening;

[0009] A light emitting component is fixed to the heat sink; and

[0010] A cooling fan is connected to the radiator.

[0011] Since the radiator is located in the accommodating cavity, the first side plate and the second side plate of the radiator are respectively covered with openings, so that the light-emitting component fixed on the radiator is in the accommodating cavity, making the fiber laser structure compact and reducing the occupied space. The first groove and the second groove of the shell and the radiator form a heat dissipation channel, and the heat dissipation fan dissipates heat from the fiber laser through the heat dissipation channel to improve the heat dissipation efficiency. Since no water cooler is used, but air cooling is used, the cost is effectively saved.

[0012] Furthermore, the radiator is provided with a plurality of heat dissipation fins, and the heat dissipation fins are fixed to the mounting plate.

[0013] By fixing a plurality of heat dissipation fins on the mounting plate, the heat dissipation cooling area is increased, thereby improving the heat dissipation effect of the fiber laser.

[0014] Furthermore, the plurality of heat dissipation fins are arranged at intervals to form a heat dissipation groove, and two ends of the heat dissipation groove are respectively connected to the first groove and the second groove.

[0015] The first groove and the second groove are connected through the heat dissipation groove to form an air-cooling channel, thereby improving the air-cooling heat dissipation efficiency of the fiber laser and enhancing the heat dissipation effect.

[0016] Furthermore, the heat sink is provided with a fixing plate, the fixing plate is located in the heat dissipation groove, and the fixing plate is used for mounting the light-emitting component.

[0017] The light-emitting component is installed through a fixing plate located in the heat dissipation groove, so that the light-emitting component and the heat sink are both located in the accommodating cavity, reducing the space occupied by the light-emitting component and the heat sink, thereby making the fiber laser structure compact.

[0018] Furthermore, the fixing plate is provided with a threaded hole, and the light-emitting component is threadedly connected to the fixing plate.

[0019] Since the fixing plate is provided with threaded holes, the fixing plate is threadedly connected to the light emitting component, thereby improving the installation and fixing effect of the light emitting component, thereby improving the reliability and stability of the optical fiber laser.

[0020] Furthermore, the mounting plate is provided with a mounting groove, the light-emitting assembly includes a Q-switching switch, and the mounting groove is used for positioning and mounting the Q-switching switch.

[0021] Since the mounting plate is provided with a mounting groove for mounting the Q-switching switch, the Q-switching switch of the light-emitting component is easier to install, thereby improving the assembly efficiency of the optical fiber laser.

[0022] Furthermore, the housing comprises:

[0023] A front plate, provided with the first groove;

[0024] A rear plate, provided with the second groove, wherein the rear plate is spaced apart from the front plate;

[0025] A cover plate, provided with a heat conduction hole, the heat conduction hole is arranged opposite to the cooling fan; and a bottom plate, spaced apart from the cover plate;

[0026] Wherein, the front plate, the rear plate, the cover plate and the bottom plate are connected in sequence to form the accommodating cavity.

[0027] Since the front plate, the rear plate, the cover plate and the bottom plate are connected in sequence, a receiving cavity with two ends opened is formed, and the receiving cavity accommodates the radiator, the cooling fan and the light-emitting component, so that the overall structure size of the fiber laser is reduced, the occupied space is reduced, and the cost of the fiber laser is reduced by using the cooling fan for air cooling. In addition, the heat conduction hole is arranged opposite to the cooling fan to improve the air cooling effect.

[0028] Furthermore, the first side plate and the second side plate are both provided with a first positioning portion, and the two first positioning portions are respectively used to position and install the cover plate and the bottom plate.

[0029] The first positioning portions of the first side plate and the second side plate facilitate installation of the housing and the radiator, thereby improving installation efficiency of the housing and the radiator and facilitating rapid assembly of the optical fiber laser.

[0030] Furthermore, the front plate and the rear plate are both provided with second positioning portions, and the second positioning portions are respectively used for positioning and installing the cover plate and the bottom plate.

[0031] The second positioning parts of the front plate and the rear plate facilitate rapid positioning of the cover plate, the bottom plate, the front plate and the rear plate during installation, thereby improving the assembly efficiency of the housing and facilitating rapid assembly of the fiber laser.

[0032] Furthermore, the cover plate is provided with two heat conduction holes, and the heat dissipation fan and the heat conduction holes are arranged in pairs.

[0033] Since the heat dissipation fan and the heat conduction hole are arranged in pairs, and there are two heat conduction holes, the heat dissipation effect of the fiber laser is improved.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The radiator is located in the accommodating cavity, and the cooling fan, the light-emitting vessel, and the light-emitting component fixed on the radiator are in the accommodating cavity, so that the fiber laser structure is compact and the occupied space is reduced. The fiber laser is cooled by the first groove, the second groove, the radiator and the cooling fan to improve the heat dissipation efficiency.

[0036] 2. The fiber laser forms a heat dissipation channel through the first groove and the second groove of the shell and the radiator. The heat dissipation fan cools the fiber laser through the heat dissipation channel. Since air cooling is adopted instead of a water cooler, the cost is effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 An exploded diagram of a cooling mechanism of a fiber laser provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of a cooling mechanism for a fiber laser provided in an embodiment of the present application;

[0039] Figure 3 for Figure 2 A schematic diagram of the structure of a cooling mechanism of a fiber laser from another perspective, wherein the cover plate is hidden;

[0040] Figure 4 for Figure 2 An exploded view of the cooling mechanism of the fiber laser;

[0041] Figure 5 A schematic diagram of the structure of a radiator provided in an embodiment of the present application;

[0042] Figure 6 for Figure 5 a bottom view of the middle radiator; and

[0043] Figure 7 for Figure 5 Left side view of the radiator.

[0044] Description of reference numerals:

[0045] 1. Shell; 11. Front plate; 111. First groove; 12. Rear plate; 121. Second groove; 13. Cover plate; 131. Heat conducting hole; 14. Bottom plate; 15. Accommodating cavity; 16. Second positioning portion;

[0046] 2. Radiator; 21. First side plate; 22. Second side plate; 23. Mounting plate; 231. Mounting groove; 24. Heat dissipation fins; 241. Heat dissipation groove; 25. Fixing plate; 251. Threaded hole; 26. First positioning portion;

[0047] 3. Light-emitting component; 31. Q-switching switch driver; 32. Main control board; 4. Cooling fan;

[0048] P. Open your mouth. DETAILED DESCRIPTION

[0049] The specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.

[0050] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0051] It should be understood that the orientation or position relationship is based on the orientation or position relationship shown in the drawings. These orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0052] Fiber lasers generate a lot of heat when working, and they need to be constantly cooled to ensure continuous operation, otherwise they will be damaged. Currently, most fiber lasers on the market use water cooling to dissipate heat to ensure normal operation of the equipment. Although water cooling has fast heat dissipation, it also has many problems.

[0053] If an external water cooler is used for circulating cooling, it is necessary to purchase a water cooler, which increases the purchase cost. In addition, it consumes a lot of power during use, which increases the cost of use, occupies a large area, and is inconvenient to move and transport. If a built-in water cooler is used for circulating cooling, the size of the equipment will undoubtedly become larger and heavier, and the power consumption will also be relatively large, and it will be inconvenient to move and transport.

[0054] Fiber lasers with water cooling structures are prone to water leakage accidents, which can damage optical devices and electrical components and affect the service life of fiber lasers. On the other hand, fiber lasers with water cooling structures are prone to condensation in high humidity environments and require the installation of dehumidifiers, which further increases the size of the fiber lasers and requires regular maintenance and dehumidification, increasing the cost of use. Therefore, it is necessary to improve the heat dissipation mechanism of fiber lasers.

[0055] Figure 1 An exploded diagram of a cooling mechanism of a fiber laser provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a cooling mechanism for a fiber laser provided in an embodiment of the present application; Figure 3 for Figure 2 A schematic diagram of a schematic diagram of a structure of a cooling mechanism of a fiber laser from another perspective, wherein the cover plate is hidden; Figure 4 for Figure 2 Exploded view of the cooling mechanism of the fiber laser.

[0056] like Figure 1 to Figure 4As shown, the embodiment of the present application provides a cooling mechanism for a fiber laser, including a housing 1, a heat sink 2, a light-emitting component 3 and a cooling fan 4. The housing 1 is provided with a receiving cavity 15 with openings P at both ends, a first groove 111 and a second groove 121, the first groove 111 and the second groove 121 are respectively connected to the receiving cavity 15, and the first groove 111 and the second groove 121 are respectively located at the two ends of the housing 1; the heat sink 2 is located in the receiving cavity 15, and the heat sink 2 is provided with a first side plate 21, a second side plate 22 and a mounting plate 23, the first side plate 21 and the second side plate 22 are respectively located on both sides of the mounting plate 23, and the first side plate 21 and the second side plate 22 are used to cover the two openings P; the light-emitting component 3 is fixed to the heat sink 2; and the cooling fan 4 is connected to the heat sink 2.

[0057] Specifically, the first side plate 21 and the second side plate 22 of the radiator 2 are respectively located on both sides of the mounting plate 23, and the mounting plate 23 is located in the middle of the first side plate 21 and the second side plate 22, and is divided into two spaces by the mounting plate 23. The light-emitting assembly 3 includes a pump source, a Q-switching switch, a Q-switching switch driver 31 and a main control board 32. The Q-switching switch driver 31 and the main control board 32 are located on the upper side of the mounting plate 23 (see Figure 3 ), the pump source and the Q-switching switch are located at the lower side of the mounting plate 23. The pump source, the Q-switching switch, the Q-switching switch driver 31 and the main control board 32 are all mounted on the radiator 2.

[0058] The housing 1 is provided with a receiving cavity 15, and both ends of the receiving cavity 15 have openings P. The heat sink 2 is located in the receiving cavity 15. The first groove 111 and the second groove 121 of the housing 1 are respectively connected to the receiving cavity 15, and the first groove 111 and the second groove 121 are respectively located at both ends of the housing 1. The first groove 111 is located on the front plate 11 of the housing 1, and the second groove 121 is located on the rear plate 12 of the housing 1. For example, the first groove 111 and the second groove 121 are both long strip-shaped waist holes, and the two long strip-shaped waist holes are connected to the receiving cavity 15. A partition is provided on the heat sink 2, and the partition separates the cooling fan 4, so that the Q-switching switch driver 31 and the main control board 32 are in one cavity, and the cooling fan 4 is located in another cavity (see Figure 3 ).

[0059] It should be noted that see Figure 2 When the radiator 2 is installed in the accommodating cavity 15 of the shell 1, the first side plate 21 and the second side plate 22 of the radiator 2 respectively cover the openings P at both ends of the shell 1. At this time, the first groove 111 and the second groove 121 form a channel through the accommodating cavity 15.

[0060] Since the radiator 2 is located in the accommodating cavity 15, the first side plate 21 and the second side plate 22 of the radiator 2 are respectively covered with openings P, so that the light-emitting assembly 3 fixed on the radiator 2 is located in the accommodating cavity 15, so that the fiber laser structure is compact and the occupied space is reduced. The first groove 111 and the second groove 121 of the housing 1 and the radiator 2 form a heat dissipation channel, and the heat dissipation fan 4 dissipates heat from the fiber laser through the heat dissipation channel to improve the heat dissipation efficiency. Since no water cooler is used, but air cooling is used, the cost is effectively saved.

[0061] Figure 5 A schematic diagram of the structure of a radiator provided in an embodiment of the present application; Figure 6 for Figure 5 Bottom view of the middle radiator; Figure 7 for Figure 5 The left side view of the radiator. Figures 5 to 7 As shown, in some embodiments, the heat sink 2 is provided with a plurality of heat dissipation fins 24 , and the heat dissipation fins 24 are fixed to the mounting plate 23 .

[0062] Specifically, the plurality of heat dissipation fins 24 are located on the upper side of the mounting plate 23, and the plurality of heat dissipation fins 24 are fixedly connected to the mounting plate 23. For example, the plurality of heat dissipation fins 24 and the mounting plate 23 are integrally formed by die casting, or the heat dissipation fins 24 are welded to the mounting plate 23 (see Figure 5 ). By fixing a plurality of heat dissipation fins 24 on the mounting plate 23, the heat dissipation cooling area is increased, thereby improving the heat dissipation effect of the fiber laser.

[0063] like Figure 7 As shown, in some embodiments, a plurality of heat dissipation fins 24 are arranged at intervals to form a heat dissipation slot 241 , and two ends of the heat dissipation slot 241 are respectively connected to the first groove 111 and the second groove 121 .

[0064] Specifically, the heat sink 2 is provided with a plurality of heat dissipation fins 24, and the plurality of heat dissipation fins 24 are arranged in rows and spaced apart, and heat dissipation grooves 241 are formed between adjacent heat dissipation fins 24. It should be noted that the plurality of heat dissipation fins 24 can be arranged at equal intervals, or the intervals between adjacent heat dissipation fins 24 can be inconsistent, so as to facilitate the installation of other components. The first groove 111 and the second groove 121 are connected through the heat dissipation groove 241 to form an air-cooling channel, thereby improving the air-cooling heat dissipation efficiency of the fiber laser and enhancing the heat dissipation effect.

[0065] In some embodiments, the heat sink 2 is provided with a fixing plate 25 , the fixing plate 25 is located in the heat dissipation slot 241 , and the fixing plate 25 is used to install the light emitting component 3 .

[0066] Specifically, the radiator 2 is provided with a plurality of fixing plates 25, the plurality of fixing plates 25 are arranged at intervals, and are all located in the heat dissipation slot 241, and the light-emitting assembly 3 is mounted on the fixing plates 25. For example, the light-emitting assembly 3 includes a Q-switching switch driver 31, a main control board 32, a pump source, and a Q-switching switch, the Q-switching switch driver 31 and the main control board 32 are fixed on the fixing plate 25, the fixing plate 25 is located on one side of the radiator 2, and the pump source and the Q-switching switch are mounted on the other side of the radiator 2. At this time, the pump source and the Q-switching switch can be fixed on the radiator 2, or the pump source and the Q-switching switch are fixed on the fixing plate 25.

[0067] The light emitting assembly 3 is installed through the fixing plate 25 located in the heat dissipation groove 241, so that the light emitting assembly 3 and the heat dissipation fan 4 are both located in the accommodating cavity 15, reducing the space occupied by the light emitting assembly 3 and the heat sink 2, thereby making the fiber laser structure compact.

[0068] It should be noted that the fixing plate 25 is used to install the light emitting assembly 3 , which means that at least some components of the light emitting assembly 3 are installed on the fixing plate 25 , and it should not be limitedly understood that all components of the light emitting assembly 3 are fixed by the fixing plate 25 .

[0069] In some embodiments, the fixing plate 25 is provided with a threaded hole 251, and the light emitting assembly 3 is threadedly connected to the fixing plate 25. Specifically, the fixing plate 25 is in an elongated shape, and a plurality of threaded holes 251 are provided on the elongated fixing plate 25, and the light emitting assembly 3 is fixed to the fixing plate 25 by screws, bolts or studs, so that the light emitting assembly 3 is fixed to the fixing plate 25. For example, the Q-switching switch driver 31 and the main control board 32 are both provided with through holes, and the Q-switching switch driver 31 and the main control board 32 are fixed to the fixing plate 25 by hexagon socket head bolts.

[0070] Since the fixing plate 25 is provided with a threaded hole 251 , the fixing plate 25 is threadedly connected to the light emitting component 3 , thereby improving the installation and fixing effect of the light emitting component 3 , thereby improving the reliability and stability of the optical fiber laser.

[0071] like Figure 6 As shown, in some embodiments, the mounting plate 23 is provided with a mounting groove 231, and the light-emitting assembly 3 includes a Q-switching switch, and the mounting groove 231 is used to position and install the Q-switching switch. Specifically, the mounting plate 23 is provided with a mounting groove 231 on the side away from the cooling fan 4. When installing the Q-switching switch, the Q-switching switch is placed in the mounting groove 231, so as to quickly position and install the Q-switching switch. Since the mounting plate 23 is provided with a mounting groove 231 for installing the Q-switching switch, the Q-switching switch of the light-emitting assembly 3 is more convenient to install, thereby improving the assembly efficiency of the fiber laser.

[0072] like Figure 1 and Figure 4As shown, in some embodiments, the shell 1 includes a front plate 11, a rear plate 12, a cover plate 13 and a bottom plate 14, wherein the front plate 11 is provided with a first groove 111, the rear plate 12 is provided with a second groove 121, the rear plate 12 is spaced apart from the front plate 11, the cover plate 13 is provided with a heat conducting hole 131, the heat conducting hole 131 is arranged opposite to the cooling fan 4, the bottom plate 14 is spaced apart from the cover plate 13, and the front plate 11, the rear plate 12, the cover plate 13 and the bottom plate 14 are connected in sequence to form a accommodating cavity 15.

[0073] Specifically, the first groove 111 of the front plate 11 is connected to the heat dissipation groove 241 of the radiator 2, and the second groove 121 of the rear plate 12 is connected to the heat dissipation groove 241 of the radiator 2. The first groove 111 of the front plate 11 and the second groove 121 of the rear plate 12 are respectively located at the two ends of the heat dissipation groove 241. When the heat dissipation fan 4 performs air cooling, the heat dissipation effect can be effectively improved through the first groove 111, the second groove 121 and the heat dissipation groove 241. The heat conduction hole 131 of the cover plate 13 is arranged opposite to the heat dissipation fan 4, and the air cooling effect is further improved through the heat conduction hole 131. The front plate 11, the rear plate 12, the cover plate 13 and the bottom plate 14 are connected in sequence, and the bottom plate 14 and the cover plate 13 are arranged at intervals, and the rear plate 12 and the front plate 11 are arranged at intervals, so as to form a receiving cavity 15 with openings P on both sides. The receiving cavity 15 accommodates the radiator 2 and the light-emitting component 3, and the first side plate 21 and the second side plate 22 of the radiator 2 are respectively covered with two openings P.

[0074] Since the front plate 11, the rear plate 12, the cover plate 13 and the bottom plate 14 are connected in sequence, a receiving cavity 15 with openings P at both ends is formed. The receiving cavity 15 accommodates the radiator 2, the cooling fan 4 and the light-emitting component 3, so that the overall structure size of the fiber laser is reduced and the occupied space is reduced. In addition, since the cooling fan 4 is used for air cooling, the cost of the fiber laser is reduced.

[0075] like Figure 4 and Figure 7 As shown, in some embodiments, the first side plate 21 and the second side plate 22 are both provided with a first positioning portion 26 , and the first positioning portion 26 is used to position and install the cover plate 13 and the bottom plate 14 , respectively.

[0076] Specifically, the upper and lower ends of the first side plate 21 are provided with a first positioning portion 26. Similarly, the upper and lower ends of the second side plate 22 are provided with a first positioning portion 26. When the housing 1 and the radiator 2 are assembled, due to the provision of the first positioning portion 26, the cover plate 13 and the bottom plate 14 of the housing 1 abut against the first positioning portion 26, which is convenient for improving the assembly efficiency of the fiber laser. For example, the first positioning portion 26 is stepped, and the stepped first positioning portions 26 at the upper ends of the first side plate 21 and the second side plate 22 are arranged relative to each other to position and install the cover plate 13. Similarly, the stepped first positioning portions 26 at the lower ends of the first side plate 21 and the second side plate 22 are arranged relative to each other to position and install the bottom plate 14. Through the first positioning portions 26 of the first side plate 21 and the second side plate 22, it is convenient to install the housing 1 and the radiator 2, improve the installation efficiency of the housing 1 and the radiator 2, and facilitate the rapid assembly of the fiber laser.

[0077] like Figure 4 As shown, in some embodiments, the front plate 11 and the rear plate 12 are both provided with a second positioning portion 16, and the second positioning portion 16 is used to position and install the cover plate 13 and the bottom plate 14 respectively.

[0078] The upper and lower ends of the front plate 11 are both provided with a second positioning portion 16. Similarly, the upper and lower ends of the rear plate 12 are both provided with a second positioning portion 16. When the cover plate 13 and the bottom plate 14 are assembled, the cover plate 13 and the bottom plate 14 of the housing 1 abut against the second positioning portion 16 due to the second positioning portion 16, which is convenient for improving the assembly efficiency of the housing 1, and further improving the assembly efficiency of the fiber laser. In particular, the second positioning portion 16 and the first positioning portion 26 are in the same plane, so that the cover plate 13 and the bottom plate 14 are covered on the same plane.

[0079] The second positioning parts 16 of the front plate 11 and the rear plate 12 facilitate quick positioning of the cover plate 13 and the bottom plate 14 when they are installed with the front plate 11 and the rear plate 12, thereby improving the assembly efficiency of the housing 1 and facilitating quick assembly of the fiber laser.

[0080] like Figure 1 As shown, in some embodiments, the cover plate 13 is provided with two heat conducting holes 131 , and the heat dissipation fan 4 and the heat conducting holes 131 are arranged in pairs.

[0081] Specifically, the heat conducting hole 131 is a through hole, and two heat conducting holes 131 are provided on the cover plate 13, and each heat conducting hole 131 corresponds to a heat dissipation fan 4. For example, the heat conducting hole 131 is in a pattern, and the number of the heat dissipation fans 4 is two, and the cover plate 13 has two patterned heat conducting holes 131, and each heat conducting hole 131 corresponds to a heat dissipation fan 4, and the heat dissipation efficiency is improved through the heat conducting holes 131.

[0082] Since the heat dissipation fan 4 and the heat conducting hole 131 are arranged in pairs, and there are two heat conducting holes 131, the heat dissipation effect of the fiber laser is improved.

[0083] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the same. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present application.

Claims

1. A cooling mechanism for a fiber laser, characterized in that: include: A shell, comprising a receiving cavity with openings at both ends, a first groove and a second groove, wherein the first groove and the second groove are respectively connected to the receiving cavity, and the first groove and the second groove are respectively located at two ends of the shell; A radiator is located in the accommodating cavity, and the radiator is provided with a first side plate, a second side plate and a mounting plate, the first side plate and the second side plate are respectively located on both sides of the mounting plate, and the first side plate and the second side plate are respectively used to cover the opening; A light emitting component, fixed to the heat sink; as well as A cooling fan is connected to the radiator.

2. The cooling mechanism of a fiber laser according to claim 1, characterized in that: The radiator is provided with a plurality of radiating fins, and the radiating fins are fixed to the mounting plate.

3. The cooling mechanism of a fiber laser according to claim 2, characterized in that: The plurality of heat dissipation fins are arranged at intervals to form a heat dissipation groove, and two ends of the heat dissipation groove are respectively connected to the first groove and the second groove.

4. The cooling mechanism of a fiber laser according to claim 3, characterized in that: The heat sink is provided with a fixing plate, the fixing plate is located in the heat dissipation slot, and the fixing plate is used for installing the light-emitting component.

5. The cooling mechanism of a fiber laser according to claim 4, characterized in that: The fixing plate is provided with a threaded hole, and the light emitting component is threadedly connected to the fixing plate.

6. The cooling mechanism of a fiber laser according to claim 1, characterized in that: The mounting plate is provided with a mounting groove, the light emitting assembly comprises a Q-switching switch, and the mounting groove is used for positioning and mounting the Q-switching switch.

7. The cooling mechanism of a fiber laser according to claim 1, characterized in that: The housing comprises: A front plate, provided with the first groove; A rear plate, provided with the second groove, wherein the rear plate is spaced apart from the front plate; A cover plate is provided with a heat conduction hole, wherein the heat conduction hole is arranged opposite to the heat dissipation fan; and A bottom plate, spaced apart from the cover plate; Wherein, the front plate, the rear plate, the cover plate and the bottom plate are connected in sequence to form the accommodating cavity.

8. The cooling mechanism of a fiber laser according to claim 7, characterized in that: The first side plate and the second side plate are both provided with a first positioning portion, and the first positioning portion is used for positioning and installing the cover plate and the bottom plate respectively.

9. The cooling mechanism of a fiber laser according to claim 7, characterized in that: The front plate and the rear plate are both provided with second positioning parts, and the second positioning parts are respectively used for positioning and installing the cover plate and the bottom plate.

10. The cooling mechanism of a fiber laser according to claim 7, characterized in that: The cover plate is provided with two heat conduction holes, and the heat dissipation fan and the heat conduction holes are arranged in pairs.

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