CN220190117U - High-power ultra-narrow linewidth single-mode fiber laser with heat radiation structure - Google Patents

Abstract

The utility model provides a high-power ultra-narrow linewidth single-mode fiber laser with a heat radiation structure, which relates to the field of lasers and comprises an ultra-narrow linewidth single-mode fiber laser operation assembly, a laser head, a machine case and a cooling assembly, wherein the cooling assembly is fixedly arranged on the bottom wall of the machine case, a plurality of heat radiation through grooves are formed in one side of the machine case at equal intervals, the ultra-narrow linewidth single-mode fiber laser operation assembly is arranged on the top of the cooling assembly, one end of the ultra-narrow linewidth single-mode fiber laser operation assembly is connected with the laser head, cold air is blown into a main air duct by starting an air cooler, and is divided into multiple branches to flow to the ventilation grooves and the sub-channels respectively, so that the uniformity of heat radiation is improved by the diffusion of the cold air, meanwhile, the heat radiation fins have good heat conduction effect, and the heat on the heat radiation fins can be taken away by the cold air when passing through the ventilation grooves, and the whole heat radiation effect is improved to a certain extent.

Description

High-power ultra-narrow linewidth single-mode fiber laser with heat radiation structure

Technical Field

The utility model relates to the field of lasers, in particular to a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure.

Background

Along with the rapid development of the laser industry, the application field of the fiber laser is wider and wider, along with the higher and higher power requirements on the fiber laser, the ultra-narrow linewidth single-mode fiber laser becomes an important development direction of the current fiber laser by the characteristic of low phase noise, is widely applied to distributed fiber sensing and interference type fiber sensing systems to reduce noise and improve detection sensitivity,

the heat dissipation device is widely applied to the heat dissipation device for dissipating heat of the optical fiber and the pumping source in the high-power continuous, quasi-continuous and pulse optical fiber lasers, so that the optical fiber and the pumping source are prevented from being damaged due to high temperature, the existing lasers are internally provided with the exhaust fans for dissipating heat, but the expected heat dissipation effect still cannot be achieved, most of the reasons are that the air quantity entering the lasers cannot be matched with the air quantity of the exhaust fans, so that hot air stays in the lasers and cannot be dissipated, the lasers are overheated, and the lasers are easy to damage.

Therefore, it is necessary to provide a new high-power ultra-narrow linewidth single mode fiber laser with a heat dissipation structure to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure.

The high-power ultra-narrow linewidth single-mode fiber laser with the heat radiation structure comprises an ultra-narrow linewidth single-mode fiber laser operation component, a laser head, a machine case and a cooling component, wherein the cooling component is fixedly arranged on the bottom wall of the machine case, a plurality of heat radiation through slots are formed in one side of the machine case in an equidistant manner, the ultra-narrow linewidth single-mode fiber laser operation component is arranged on the top of the cooling component, and one end of the ultra-narrow linewidth single-mode fiber laser operation component is connected with the laser head;

the cooling assembly comprises an air cooler and two cooling plates which are arranged up and down relatively, wherein a main air duct and a plurality of sub-runners are arranged at two ends of the cooling plates, the inner cavities of the sub-runners are respectively communicated with the inner cavities of the main air duct, ventilation grooves are respectively formed in two sides of the cooling plates at equal intervals, the ventilation grooves are respectively communicated with the main air duct and the inner cavities of the sub-runners, a plurality of cooling fins are arranged between the ventilation grooves, the air cooler is fixed in the case, and the air inlet of the air cooler is right opposite to one end of the main air duct.

Further, one end of the case, which is far away from the air cooler, is provided with an arc-shaped backflow plate, and the arc-shaped backflow plate is right opposite to the air outlets of the plurality of diversion channels.

Further, the number of the sub-runners is four, and the four sub-runner inner cavities are respectively communicated with the ventilation groove and the main air duct inner cavity.

Further, the radiating fins and the cooling plate are of an integrated structure.

Further, the radiating fins are made of aluminum alloy materials.

Further, the turning angles of the main air duct and the sub-channels are rounded.

Compared with the related art, the high-power ultra-narrow linewidth single-mode fiber laser with the heat radiation structure has the following beneficial effects:

the cold air is blown into the main air duct by starting the air cooler, and the cold air can be divided into multiple branches to flow to the ventilation grooves and the sub-channels respectively, so that the cold air is diffused to improve the radiating uniformity, meanwhile, the radiating fins have better heat conducting effect, and the heat on the radiating fins can be taken away when the cold air passes through the ventilation grooves, so that the overall radiating effect is improved to a certain extent.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure;

FIG. 2 is a cross-sectional view of a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure provided by the utility model;

FIG. 3 is a schematic diagram of the operation components and cooling components of the ultra-narrow linewidth single mode fiber laser according to the present utility model;

FIG. 4 is a schematic diagram of an exploded structure of a cooling plate according to the present utility model;

fig. 5 is a schematic top view of the present utility model.

Reference numerals in the drawings: 1. an ultra-narrow linewidth single mode fiber laser operating assembly; 2. a laser head; 3. a chassis; 4. a heat dissipation through groove; 5. an air cooler; 6. a cooling plate; 7. a main air duct; 8. a sub-runner; 9. a ventilation groove; 10. a heat radiation fin; 11. an arc-shaped reflux plate.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5 in combination, fig. 1 is a schematic diagram of an overall structure of a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure according to the present utility model; FIG. 2 is a cross-sectional view of a high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure provided by the utility model; FIG. 3 is a schematic diagram of the operation components and cooling components of the ultra-narrow linewidth single mode fiber laser according to the present utility model; FIG. 4 is a schematic diagram of an exploded structure of a cooling plate according to the present utility model; fig. 5 is a schematic top view of the present utility model.

In the specific implementation process, as shown in fig. 1-5, the high-power ultra-narrow linewidth single-mode fiber laser with a heat dissipation structure comprises an ultra-narrow linewidth single-mode fiber laser operation component 1, a laser head 2, a machine case 3 and a cooling component, wherein the cooling component is fixedly arranged on the bottom wall of the machine case 3, one side of the machine case 3 is equidistantly separated from the machine case 3 and provided with a plurality of heat dissipation through slots 4, the ultra-narrow linewidth single-mode fiber laser operation component 1 is arranged at the top of the cooling component, one end of the ultra-narrow linewidth single-mode fiber laser operation component 1 is connected with the laser head 2, the cooling component comprises an air cooler 5 and two cooling plates 6 which are arranged up and down oppositely, two ends of the cooling plates 6 are provided with a main air duct 7 and a plurality of sub-channels 8, and turning angles of the main air duct 7 and the sub-channels 8 are all provided with round angle treatment, the fillet is for better induced air, the inner chamber of a plurality of sub-runners 8 is linked together with main wind channel 7 inner chamber respectively, ventilation groove 9 has been offered to the both sides of cooling plate 6 equidistance respectively, a plurality of ventilation grooves 9 are linked together with main wind channel 7 and a plurality of sub-runner 8 inner chamber respectively, and be equipped with radiator fin 10 between a plurality of ventilation grooves 9, air-cooler 5 is fixed in quick-witted case 3 inside, the wind gap of air-cooler 5 is just to main wind channel 7 one end, radiator fin 10 and cooling plate 6 are integrated into one piece structure, radiator fin 10 is the aluminum alloy material, the quantity of sub-runner 8 is four, four sub-runner 8 inner chamber are linked together with ventilation groove 9 and main wind channel 7 inner chamber respectively, the one end that machine case 3 kept away from air-cooler 5 is equipped with arc backward flow board 11, arc backward flow board 11 just is just to the air outlet of a plurality of sub-runners 8.

The working principle provided by the utility model is as follows: through starting air-cooler 5 with cold wind blow into in the main wind channel 7, cold wind can divide into the multibranch and flow to ventilation groove 9 and reposition of redundant personnel way 8 respectively, make cold wind diffusion improve radiating homogeneity, radiator fin 10 has better heat conduction effect simultaneously, heat on the radiator fin 10 can be taken away when cold wind passes through ventilation groove 9, cold wind is strikeed to arc reflux plate 11 through runner 8 simultaneously and is produced the backward flow, remaining cold wind can be along the surperficial heat dissipation of arc reflux plate 11 impact ultra-narrow linewidth single mode fiber laser operation subassembly 1 surface, improve holistic radiating effect to a certain extent.

The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (6)

1. The high-power ultra-narrow linewidth single-mode fiber laser with the heat radiation structure is characterized by comprising an ultra-narrow linewidth single-mode fiber laser operation assembly (1), a laser head (2), a machine case (3) and a cooling assembly, wherein the cooling assembly is fixedly arranged on the bottom wall of the machine case (3), a plurality of heat radiation through grooves (4) are formed in one side of the machine case (3) in an equidistant manner, the ultra-narrow linewidth single-mode fiber laser operation assembly (1) is arranged on the top of the cooling assembly, and one end of the ultra-narrow linewidth single-mode fiber laser operation assembly (1) is connected with the laser head (2);

the cooling assembly comprises an air cooler (5) and two cooling plates (6) which are oppositely arranged up and down, a main air duct (7) and a plurality of sub-channels (8) are arranged at two ends of the cooling plates (6), the inner cavities of the sub-channels (8) are respectively communicated with the inner cavities of the main air duct (7), ventilation grooves (9) are respectively formed in two sides of the cooling plates (6) at equal intervals, the ventilation grooves (9) are respectively communicated with the inner cavities of the main air duct (7) and the sub-channels (8), heat dissipation fins (10) are arranged between the ventilation grooves (9), the air cooler (5) is fixed inside the case (3), and the air opening of the air cooler (5) is right opposite to one end of the main air duct (7).

2. The high-power ultra-narrow linewidth single mode fiber laser with the heat radiation structure according to claim 1, wherein one end of the chassis (3) far away from the air cooler (5) is provided with an arc-shaped reflux plate (11), and the arc-shaped reflux plate (11) is opposite to air outlets of the plurality of flow distribution channels (8).

3. The high-power ultra-narrow linewidth single mode fiber laser with the heat dissipation structure according to claim 1, wherein the number of the shunt channels (8) is four, and the inner cavities of the four shunt channels (8) are respectively communicated with the ventilation grooves (9) and the inner cavities of the main air duct (7).

4. The high-power ultra-narrow linewidth single mode fiber laser with heat dissipation structure according to claim 1, characterized in that the heat dissipation fins (10) and the cooling plate (6) are in an integrated structure.

5. The high-power ultra-narrow linewidth single mode fiber laser with heat dissipation structure according to claim 1, wherein the heat dissipation fins (10) are made of aluminum alloy.

6. The high-power ultra-narrow linewidth single mode fiber laser with the heat radiation structure according to claim 1, wherein turning angles of the main air duct (7) and the plurality of sub-runners (8) are rounded.