Air-cooled heat dissipation fiber laser

Abstract

The present application relates to the technical field of lasers, in particular to an air-cooled heat dissipation fiber laser, comprising first heat dissipation plates and second heat dissipation plates which are vertically arranged and connected end to end; a top cover and a base are respectively installed at upper and lower ends of the first heat dissipation plates and the second heat dissipation plates, and an air inlet cavity is formed by the first heat dissipation plates, the second heat dissipation plates, the top cover and the base; each first heat dissipation plate comprises a plurality of pump sources and first heat sinks fixed on the pump sources, each first heat sink comprising a plurality of heat dissipation fins, and air inlets leading to the inside of the cavity being formed between the heat dissipation fins; a fan is installed on the top cover, and is configured to extract air inside the cavity from bottom to top. The present application features a simple air duct, high heat dissipation efficiency and easy cleaning; in addition, using air-cooled heat dissipation reduces apparatus investment and risks such as liquid leakage.

Description

An air-cooled heat dissipation fiber laser

[0001] Cross-reference to related applications

[0002] The present application claims priority to the application No. 2024222875796 and entitled "An air-cooled heat dissipation fiber laser" filed on September 19, 2024 with the China Patent Office, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of laser, in particular to an air-cooled heat dissipation fiber laser. BACKGROUND

[0004] The fiber laser refers to a laser using a glass fiber doped with a rare earth element as a gain medium. The fiber laser can be developed on the basis of a fiber amplifier: under the action of pump light, high power density is easily formed in the fiber, causing "particle number inversion" of the laser energy level of the laser working substance. When a positive feedback loop (forming a resonant cavity) is appropriately added, laser oscillation output can be formed. The fiber laser has a very wide range of applications, including laser fiber communication, laser space long-distance communication, industrial shipbuilding, automobile manufacturing, laser engraving, laser marking, laser cutting, printing roller manufacturing, metal and non-metal drilling, cutting, welding (brazing, quenching, cladding, and deep welding), military and national defense security, medical instruments and equipment, large-scale infrastructure construction, etc.

[0005] The fiber laser generates a large amount of heat during operation. In order to ensure the stable operation of the laser, the heat needs to be dissipated to ensure that each device in the laser operates in a stable temperature environment. At present, water cooling is mostly used for heat dissipation of fiber lasers. Water cooling has a relatively fast cooling speed, but also brings many inconveniences. First, the fiber laser needs to be additionally configured with a water cooling machine, increasing the use cost and bringing risks such as liquid leakage.

[0006] SUMMARY

[0007] The present application aims to provide an air-cooled heat dissipation fiber laser to solve the problems in the background.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an air-cooled heat dissipation fiber laser, comprising a first heat dissipation plate and a second heat dissipation plate arranged vertically and connected end to end, and a top cover and a base are respectively installed at the upper and lower ends of the first heat dissipation plate and the second heat dissipation plate, an air inlet cavity is formed inside the first heat dissipation plate, the second heat dissipation plate, the top cover and the base, the first heat dissipation plate comprises a plurality of pump sources and a first heat sink fixed on the pump sources, and the first heat sink comprises a plurality of heat dissipation teeth, an air inlet communicating with the inside of the cavity is formed between the heat dissipation teeth, a fan is installed on the top cover, and the fan is configured to draw the gas inside the cavity from bottom to top.

[0009] Optionally, the number of the first heat dissipation plates and the second heat dissipation plates is two, two first heat dissipation plates are vertically parallel to each other, two second heat dissipation plates are vertically parallel to each other, and the first heat dissipation plates and the second heat dissipation plates are sequentially connected end to end to form a rectangular air inlet cavity.

[0010] Optionally, the first heat dissipators on the two first heat dissipation plates are arranged in a staggered manner along the length direction of the first heat dissipation plates.

[0011] Optionally, the first heat dissipation plate further comprises a baffle.

[0012] Optionally, the second heat dissipation plate comprises a vertically arranged mounting plate and a second heat dissipator fixed on the mounting plate.

[0013] Optionally, the fan is an eddy fan, a centrifugal fan or an axial flow fan, and the air pressure of the fan is not less than 300 Pa.

[0014] Optionally, a flow guide groove with gradually increasing size from bottom to top is arranged in the middle of the top cover, the fan is installed at the center of the flow guide groove, and a filter screen is installed at the top end of the flow guide groove.

[0015] Optionally, a flow guide plate is vertically arranged below the fan, and the flow guide plate is a cylindrical structure penetrating from top to bottom, and a plurality of openings are arranged on the side wall of the flow guide plate.

[0016] Optionally, a maintenance opening is detachably installed on the base.

[0017] Optionally, a plurality of casters are installed at the bottom end of the base.

[0018] Compared with the prior art, the application has the following advantages:

[0019] (1) The air-cooled heat dissipation fiber laser is provided with a first heat dissipation plate, a second heat dissipation plate, a top cover and a base to form an air inlet cavity inside, install a fan at the top end of the cavity, horizontally intake air and vertically exhaust air, and the air duct is simple and the heat dissipation efficiency is high. At the same time, air cooling is adopted to reduce the investment of equipment and the risk of liquid leakage.

[0020] (2) The fiber laser application environment is responsible, and the teeth of the heat dissipator are easy to be contaminated by dust, etc. This air-cooled laser uses the first heat dissipator attached to the pump source as an air inlet, which can directly blow off the dirt and is easy to clean.

[0021] (3) The flow guide groove is arranged at the center of the top cover, the heat dissipation is fast, and the flow guide plate is arranged to make the heat dissipation uniform.

[0022] (4) The maintenance opening is detachably installed on the base, which is convenient for internal maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 is an exploded schematic diagram of the air-cooled heat dissipation fiber laser of the present application;

[0024] Fig. 2 is a schematic diagram of the three-dimensional structure of the air-cooled heat dissipation fiber laser of the present application;

[0025] Fig. 3 is a schematic diagram of the three-dimensional structure of the first heat dissipation plate of the present application;

[0026] Fig. 4 is a schematic diagram of the cross-sectional structure of the top cover of the present application.

[0027] In the figure: 1, first heat dissipation plate; 101, pump source; 102, first heat sink; 103, baffle; 2, second heat dissipation plate; 201, mounting plate; 202, second heat sink; 3, top cover; 301, flow guide groove; 302, filter screen; 303, handle; 4, base; 401, maintenance opening; 5, fan; 6, flow guide plate; 601, opening; 7, caster. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. In the description of the present application, it should be noted that the terms "first", "second", etc. are for the purpose of description only and do not mean to particularly indicate the order or sequence, nor to limit the present application. They are merely used to distinguish components or operations described by the same technical terms. They cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. The terms "include" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected or detachably connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0030] Referring to FIGS. 1-4, an embodiment provided by the present application is a wind-cooled heat dissipation optical fiber laser, comprising a first heat dissipation plate 1 and a second heat dissipation plate 2 arranged vertically and connected end to end, and a top cover 3 and a base 4 are respectively installed at the upper and lower ends of the first heat dissipation plate 1 and the second heat dissipation plate 2, and a wind inlet cavity is formed inside the first heat dissipation plate 1, the second heat dissipation plate 2, the top cover 3 and the base 4. In the present embodiment, the number of the first heat dissipation plate 1 and the second heat dissipation plate 2 is two, two first heat dissipation plates 1 are vertically and parallel to each other, and two second heat dissipation plates 2 are vertically and parallel to each other. The first heat dissipation plate 1 and the second heat dissipation plate 2 are sequentially connected end to end to form a rectangular wind inlet cavity. Alternatively, according to the use requirements, the two first heat dissipation plates 1 can be designed to be vertically connected end to end, and the two second heat dissipation plates 2 can be vertically connected end to end to splice into a cuboid structure. The first heat dissipation plate 1 and the second heat dissipation plate 2 can also be designed in other quantities, and a plurality of first heat dissipation plates 1 and second heat dissipation plates 2 can be spliced to form a closed wind inlet cavity.

[0031] The first heat dissipation plate 1 comprises a plurality of pump sources 101 and a first heat sink 102 fixed on the pump source 101. The specific number of pump sources 101 is set according to the required laser power. In the present embodiment, the total number of pump sources 101 is six, and each first heat dissipation plate 1 is provided with three pump sources 101. Other quantities can also be set according to actual needs.

[0032] The first heat sink 102 comprises a plurality of heat dissipation teeth. In the present embodiment, the first heat sink 102 is integrally formed with the shell of the pump source 101 to dissipate heat for the pump source 101. The first heat sink 102 is arranged at equal intervals from top to bottom along one side of the outer side wall of the pump source 101. A plurality of pump sources 101 and first heat sinks 102 are arranged at intervals to avoid mutual influence between the pump sources 101. The heat dissipation teeth of the first heat sink 102 form an air inlet connected to the inside of the cavity. During operation, external gas enters the inside from between the first heat sinks 102. The gas flow can directly blow away dirt, making it easy to clean the first heat sink 102.

[0033] Alternatively, in the present embodiment, the first heat sinks 102 on the two first heat dissipation plates 1 are arranged in a staggered manner along the length direction of the first heat dissipation plate 1.

[0034] Alternatively, the first heat dissipation plate 1 further comprises a baffle 103. In the present embodiment, the baffle 103 is provided with one piece, which is arranged between the pump source 101 and the first heat sink 102, and the height thereof is equal to that of the pump source 101. Because the laser power is different, the number of pump sources 101 required is different, and the required heat dissipation area is also different. The baffle 103 is configured to shield the remaining gap after the pump source 101 is installed to prevent air leakage.

[0035] The second heat dissipation plate 2 comprises a vertically arranged mounting plate 201 and a second heat dissipation plate 202 fixed on the mounting plate 201, the second heat dissipation plate 202 is arranged inside the mounting plate 201, the mounting plate 201 can be configured to mount electrical appliances and optical heat dissipation plates, etc., the second heat dissipation plate 202 increases the heat exchange area, in the embodiment, the first heat dissipation plate 102 and the second heat dissipation plate 202 are both dense-tooth heat dissipation plates, the material includes but is not limited to red copper and aluminum, and comprises a plurality of parallel arranged heat dissipation teeth, the tooth gap between adjacent heat dissipation teeth is not greater than 2.2 mm, and the thickness of the heat dissipation teeth is not greater than 2 mm.

[0036] A fan 5 is mounted on the top cover 3, and the fan 5 is configured to draw out the gas inside the cavity from bottom to top, the fan 5 is a vortex fan, a centrifugal fan or an axial flow fan, the air pressure of the fan 5 is not less than 300 Pa, a guide groove 301 with gradually increasing size from bottom to top is arranged in the middle of the top cover 3, the fan 5 is mounted at the center of the guide groove 301 through a support, and a filter screen 302 is mounted at the top end of the guide groove 301, in operation, the fan 5 draws the external air into the internal cavity from between the heat dissipation teeth of the first heat dissipation plate 102, and then discharges in the vertical direction, the air duct is simple, the heat dissipation efficiency is high, and the air cooling heat dissipation is adopted, so that the equipment investment and the liquid leakage risk of using water cooling heat dissipation are reduced.

[0037] Optionally, a guide plate 6 is vertically arranged below the fan 5, and the guide plate 6 is a cylindrical structure penetrating through from top to bottom, a plurality of openings 601 are arranged on the side wall of the guide plate 6, and the plurality of openings 601 are respectively arranged on the two sides close to the two first heat dissipation plates 1, so that the heat dissipation is more uniform and rapid.

[0038] A maintenance opening 401 is detachably mounted on the base 4 through bolts, so that internal maintenance is facilitated, a plurality of casters 7 are mounted at the bottom end of the base 4, handles 303 are mounted at the top end of the top cover 3 on both sides, so that the use of the laser is facilitated.

[0039] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved. Industrial applicability

[0040] The air-cooled heat dissipation optical fiber laser of the application is provided with a first heat dissipation plate, a second heat dissipation plate, a top cover and a base, so that an air inlet cavity is formed inside, a fan is installed at the top end of the cavity, air is horizontally inhaled and vertically exhausted, the air duct is simple, the heat dissipation efficiency is high, air cooling is adopted at the same time, and the risks of equipment investment and liquid leakage are reduced.

Claims

1. A wind-cooled fiber laser, characterized in that: The application relates to a heat dissipation device, which comprises first and second heat dissipation plates (1 and 2) arranged vertically and connected end to end, and a top cover (3) and a base (4) respectively arranged at the upper and lower ends of the first and second heat dissipation plates (1 and 2); the first and second heat dissipation plates (1 and 2), the top cover (3) and the base (4) form an air inlet cavity inside; the first heat dissipation plate (1) comprises a plurality of pump sources (101) and a first heat radiator (102) fixed on the pump sources (101), and the first heat radiator (102) comprises a plurality of heat dissipation teeth, air inlets communicated with the air inlet cavity are formed between the heat dissipation teeth; a fan (5) is arranged on the top cover (3) and is configured to draw air in the air inlet cavity from bottom to top.

2. The air-cooled, heat-sinked fiber laser of claim 1, wherein: The first and second heat dissipation plates (1 and 2) are arranged in two numbers, the two first heat dissipation plates (1) are arranged vertically and in parallel, the two second heat dissipation plates (2) are arranged vertically and in parallel, and the first and second heat dissipation plates (1 and 2) are sequentially connected end to end to form a rectangular air inlet cavity.

3. The air-cooled, heat-sinked fiber laser of claim 2, wherein: The first heat radiators (102) on the two first heat dissipation plates (1) are arranged in a staggered manner along the length direction of the first heat dissipation plates (1).

4. The air-cooled, heat-sinked fiber laser of claim 1, wherein: The first heat dissipation plate (1) further comprises a baffle (103).

5. The air-cooled, heat-sinked fiber laser of claim 1, wherein: The second heat dissipation plate (2) comprises a mounting plate (201) arranged vertically and a second heat radiator (202) fixed on the mounting plate (201).

6. The air-cooled, heat-sinked fiber laser of claim 1, wherein: The fan (5) is a vortex fan, a centrifugal fan or an axial flow fan, and the air pressure of the fan (5) is not less than 300 Pa.

7. The air-cooled, heat-sinked fiber laser of claim 1, wherein: A flow guide groove (301) gradually increasing in size from bottom to top is arranged in the middle of the top cover (3), the fan (5) is arranged at the center of the flow guide groove (301), and a filter screen (302) is arranged at the top end of the flow guide groove (301).

8. The air-cooled, heat-sinked fiber laser of claim 1, wherein: A flow guide plate (6) is arranged vertically below the fan (5), the flow guide plate (6) is in a cylindrical structure penetrating from top to bottom, and a plurality of openings (601) are arranged on the side wall of the flow guide plate (6).

9. The air-cooled, heat-sinked fiber laser of claim 1, wherein: A maintenance opening (401) is detachably arranged on the base (4).

10. The air-cooled, heat-sinked fiber laser of claim 1, wherein: A plurality of casters (7) are arranged at the bottom end of the base (4).

11. The air-cooled, heat-sinked fiber laser of claim 4, wherein: The baffle (103) is arranged between the pump source (101) and the first heat radiator (102).

12. The air-cooled, heat-sinked fiber laser of claim 5, wherein: The second heat radiator (202) is arranged inside the mounting plate (201).

13. The air-cooled, heat-sinked fiber laser of claim 8, wherein: The plurality of openings (601) are respectively arranged on the two sides of the flow guide plate (6) close to the two first heat dissipation plates (1).

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