Air-cooled heat dissipation fiber laser

Abstract

The utility model relates to the technical field of lasers, in particular to an air-cooled heat dissipation optical fiber laser which comprises a first heat dissipation plate and a second heat dissipation plate which are vertically arranged and connected end to end, and a top cover and a base are installed at the upper end and the lower end of the first heat dissipation plate and the upper end and the lower end of the second heat dissipation plate respectively. An air inlet cavity is formed in 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 pumping sources and first radiators fixed to the pumping sources, the first radiators comprise a plurality of heat dissipation teeth, air inlets communicated with the interior of the cavity are formed among the heat dissipation teeth, a fan is installed on the top cover, and the air inlets are communicated with the interior of the cavity. And the fan is used for extracting gas in the cavity from bottom to top, an air duct is simple, the heat dissipation efficiency is high, cleaning is easy, meanwhile, air cooling heat dissipation is adopted, and the risks of equipment investment, liquid leakage and the like are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lasers, in particular to an air-cooled fiber laser. Background Art

[0002] A fiber laser refers to a laser that uses rare-earth element-doped glass fiber as a gain medium. The fiber laser can be developed on the basis of a fiber amplifier: under the action of pump light, it is extremely easy to form a high power density in the optical fiber, causing "population inversion" of the laser energy levels of the laser working substance. When a positive feedback loop (constituting 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 making, metal and non-metal drilling, cutting, welding (copper welding, quenching, cladding, and deep welding), military national defense security, medical device instruments, large-scale infrastructure construction, and so on.

[0003] When the fiber laser is working, it will generate a large amount of heat. To ensure the stable operation of the laser, the heat needs to be dissipated to ensure that each device in the laser can operate in a stable temperature environment. At present, most fiber lasers use water-cooled heat dissipation. The water-cooled heat dissipation speed is relatively fast, but it also brings many inconveniences. First, an additional water chiller needs to be configured for the fiber laser, which increases the use cost and brings risks such as liquid leakage. Content of the Utility Model

[0004] The purpose of the utility model is to provide an air-cooled fiber laser to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An air-cooled fiber laser, including a first heat dissipation plate and a second heat dissipation plate that are vertically arranged 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 includes a plurality of pump sources and a first radiator fixed on the pump sources. The first radiator includes a plurality of heat dissipation teeth, and air inlets communicating with the inside of the cavity are formed between the heat dissipation teeth. A fan is installed on the top cover, and the fan is used to extract the gas inside the cavity from bottom to top.

[0006] Further, the number of the first heat dissipation plate and the second heat dissipation plate is both set to two. The two first heat dissipation plates are vertically parallel and opposite to each other, and the two second heat dissipation plates are vertically parallel and opposite to each other. The first heat dissipation plate and the second heat dissipation plate are sequentially connected end to end to form a rectangular air inlet cavity in the middle.

[0007] Further, the first radiators on the two first heat dissipation plates are arranged in a staggered manner along the length direction of the first heat dissipation plate.

[0008] Further, the first heat dissipation plate further includes a baffle.

[0009] Further, the second heat dissipation plate includes a vertically arranged mounting plate and a second radiator fixed on the mounting plate.

[0010] Further, the fan is a vortex fan, a centrifugal fan or an axial flow fan, and the air pressure of the fan is not less than 300 Pa.

[0011] Further, a diversion groove with gradually increasing dimensions from bottom to top is provided in the middle of the top cover. The fan is installed at the center of the diversion groove, and a filter screen is installed at the top end of the diversion groove.

[0012] Further, a diversion plate is vertically arranged below the fan, and the diversion plate is a cylindrical structure that penetrates up and down. A plurality of openings are provided on the side wall of the diversion plate.

[0013] Further, a maintenance port is detachably installed on the base.

[0014] Further, a plurality of casters are installed at the bottom end of the base.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] (1) By providing the first heat dissipation plate, the second heat dissipation plate, the top cover and the base, an air inlet cavity is formed inside. A fan is installed at the top end of the cavity, with horizontal air inlet and vertical air outlet. The air duct is simple, and the heat dissipation efficiency is high. At the same time, air cooling is adopted to reduce risks such as equipment investment and liquid leakage.

[0017] (2) The application environment of fiber lasers is complex, and the teeth of the radiator are easily soiled by dust and the like. This air-cooled laser uses the first radiator attached to the pump source as the air inlet, and can directly blow off the dirt, which is easy to clean.

[0018] (3) By providing a diversion groove at the center of the top cover, the heat dissipation is fast, and by providing a diversion plate, the heat dissipation is uniform.

[0019] (4) By detachably installing a maintenance port on the base, it is convenient for internal maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an exploded schematic view of the present utility model;

[0021] Figure 2 is a three-dimensional structural schematic view of the present utility model;

[0022] Figure 3 is a three-dimensional structural schematic view of the first heat dissipation plate of the present utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the top cover of the present utility model.

[0024] In the figure: 1. First heat dissipation plate; 101. Pump source; 102. First radiator; 103. Baffle; 2. Second heat dissipation plate; 201. Mounting plate; 202. Second radiator; 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 implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. In the description of the present utility model, it should be noted that the descriptions of terms such as "first" and "second" are only for the purpose of description, and do not particularly refer to the meaning of order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. For the terms "including" and any of their deformations in the description, claims and above-mentioned drawings of the present utility model, the intention is to cover non-exclusive inclusion.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation to the present utility model.

[0027] Please refer to Figures 1-4, an embodiment provided by the present utility model: an air-cooled fiber laser, which includes a first heat dissipation plate 1 and a second heat dissipation plate 2 that are vertically arranged and connected end to end. The upper and lower ends of the first heat dissipation plate 1 and the second heat dissipation plate 2 are respectively installed with a top cover 3 and a base 4. An air 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 this embodiment, the number of the first heat dissipation plate 1 and the second heat dissipation plate 2 is both set to two. The two first heat dissipation plates 1 are vertically parallel to each other, and the two second heat dissipation plates 2 are vertically 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 air inlet cavity in the middle. Further, according to the usage requirements, the two first heat dissipation plates 1 can also be designed to be vertically connected end to end, and the two second heat dissipation plates 2 are vertically connected end to end to form a cuboid structure. The first heat dissipation plate 1 and the second heat dissipation plate 2 can also be designed with other numbers, as long as a sealed air inlet cavity is formed by splicing inside several first heat dissipation plates 1 and second heat dissipation plates 2.

[0028] The first heat dissipation plate 1 includes a plurality of pump sources 101 and a first radiator 102 fixed on the pump sources 101. The specific number of the pump sources 101 is set according to the required laser power. In this embodiment, the total number of the pump sources 101 is set to six, and each first heat dissipation plate 1 is provided with three. It can also be set to other numbers according to actual requirements.

[0029] The first radiator 102 includes a plurality of heat dissipation teeth. In this embodiment, the first radiator 102 is integrally formed with the outer shell of the pump source 101 and is used for dissipating heat of the pump source 101. The first radiator 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 the first radiator 102 are arranged at intervals to prevent mutual influence between the pump sources 101. An air inlet connected to the inside of the cavity is formed between the heat dissipation teeth of the first radiator 102. During operation, external gas enters the inside from between the first radiators 102, and the gas flow can directly blow off dirt, which is conducive to the cleaning of the first radiator 102.

[0030] Further, in this embodiment, the first 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 plate 1.

[0031] Further, the first heat dissipation plate 1 further includes a baffle 103. In this embodiment, one baffle 103 is provided and is arranged between the pump source 101 and the first radiator 102, and its height is equal to that of the pump source 101. Because the laser power is different, the number of required pump sources 101 is different, and the required heat dissipation area is also different. The baffle 103 is used to block the remaining gap after the pump source 101 is installed to prevent air leakage.

[0032] The second heat dissipation plate 2 includes a vertically arranged mounting plate 201 and a second radiator 202 fixed on the mounting plate 201. The second radiator 202 is arranged inside the mounting plate 201. The mounting plate 201 can be used to mount electrical appliances, optical radiators, etc. The second radiator 202 increases the heat exchange area. In this embodiment, both the first radiator 102 and the second radiator 202 are finned radiators, and the materials include but are not limited to red copper and aluminum, including a number of parallel arranged heat dissipation fins. The gap between adjacent heat dissipation fins is not greater than 2.2 mm, and the thickness of the heat dissipation fins is not greater than 2 mm;

[0033] A fan 5 is installed on the top cover 3, and the fan 5 is used to extract 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 flow guide groove 301 with an increasing size from bottom to top is arranged in the middle of the top cover 3. The fan 5 is installed at the center of the flow guide groove 301 through a bracket, and a filter screen 302 is installed at the top end of the flow guide groove 301. During operation, the fan 5 sucks the outside air into the internal cavity from between the heat dissipation fins of the first radiator 102 and then discharges it in the vertical direction. The air duct is simple and the heat dissipation efficiency is high. At the same time, air cooling is adopted to reduce the risks such as equipment investment and liquid leakage of using water cooling.

[0034] Furthermore, a flow guide plate 6 is vertically arranged below the fan 5, and the flow guide plate 6 is a cylindrical structure that is penetrated up and down. A number of openings 601 are arranged on the side wall of the flow guide plate 6, and the number of openings 601 are respectively arranged on both sides close to the two first heat dissipation plates 1, so that the heat dissipation is more uniform and rapid.

[0035] A maintenance port 401 is detachably installed on the base 4 through bolts, which is convenient for internal maintenance. A number of casters 7 are installed at the bottom end of the base 4, and handles 303 are installed on both sides of the top end of the top cover 3, which further facilitates the use of the laser.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An air-cooled fiber laser, characterized in that: It includes a first heat dissipation plate (1) and a second heat dissipation plate (2) which are vertically arranged 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). An air 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). The first heat dissipation plate (1) includes a number of pump sources (101) and a first radiator (102) fixed on the pump sources (101), and the first radiator (102) includes a number of heat dissipation teeth, and air inlets communicating with the inside of the cavity are formed between the heat dissipation teeth. A blower (5) is installed on the top cover (3), and the blower (5) is used to extract the gas inside the cavity from bottom to top.

2. The air-cooled fiber laser according to claim 1, wherein: The number of the first heat dissipation plates (1) and the second heat dissipation plates (2) is both set to two. The two first heat dissipation plates (1) are vertically parallel and opposite to each other, and the two second heat dissipation plates (2) are vertically parallel and opposite to each other. The first heat dissipation plates (1) and the second heat dissipation plates (2) are sequentially connected end to end to form a rectangular air inlet cavity in the middle.

3. The air-cooled fiber laser according to claim 2, wherein: The first 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 plate (1).

4. The air-cooled fiber laser according to claim 1, characterized in that: The first heat dissipation plate (1) further includes a baffle (103).

5. The air-cooled fiber laser according to claim 1, characterized in that: The second heat dissipation plate (2) includes a vertically arranged mounting plate (201) and a second radiator (202) fixed on the mounting plate (201).

6. The air-cooled fiber laser according to claim 1, wherein: The blower (5) is an eddy current blower, a centrifugal blower or an axial flow blower, and the air pressure of the blower (5) is not less than 300 Pa.

7. The air-cooled fiber laser according to claim 1, characterized in that: A diversion groove (301) with a gradually increasing size from bottom to top is arranged in the middle of the top cover (3). The blower (5) is installed at the center of the diversion groove (301), and a filter screen (302) is installed at the top end of the diversion groove (301).

8. The air-cooled fiber laser according to claim 1, characterized in that: A diversion plate (6) is vertically arranged below the blower (5), and the diversion plate (6) is a cylindrical structure with upper and lower through holes. A number of openings (601) are arranged on the side wall of the diversion plate (6).

9. The air-cooled fiber laser according to claim 1, wherein: A maintenance port (401) is detachably installed on the base (4).

10. An air-cooled fiber laser according to claim 1, characterized in that: A number of casters (7) are installed at the bottom end of the base (4).

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