Air-cooled semiconductor laser

Abstract

The utility model relates to the technical field of lasers, in particular to an air-cooled semiconductor laser, which comprises a shell, an electrode and an optical device arranged in the shell, the shell is made of aluminum, heat dissipation teeth are integrally arranged on the outer side wall of the shell, the heat dissipation teeth are high-density teeth, and the shell is made of aluminum, so that the heat dissipation performance of the shell is improved. The aluminum material is light and low in cost, the heat dissipation teeth are integrally arranged on the outer side of the shell, the heat dissipation area is increased, meanwhile, a middle transition layer between the heat dissipation teeth and the shell is omitted, the heat conduction efficiency is greatly improved, the performance of the laser is further improved, and the service life of the laser is prolonged.

Description

Technical Field

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

[0002] For the existing air-cooled semiconductor lasers, the outer shells are basically made of red copper, which are relatively heavy and have relatively high production costs. The heat dissipation structural parts are aluminum parts. The two are fixed together by screws, and thermal conductive silicone grease is applied in the middle. Due to the relatively low thermal conductivity of the thermal conductive silicone grease, and if the contact is not good or the silicone grease hardens, the heat conduction effect will become much worse. Content of the Utility Model

[0003] The purpose of the utility model is to provide an air-cooled semiconductor laser to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: an air-cooled semiconductor laser, including an outer shell, an electrode and an optical device arranged inside the outer shell. The material of the outer shell is aluminum, and heat dissipation teeth are integrally arranged on the outer side wall of the outer shell.

[0005] Further, the heat dissipation teeth are high-density teeth.

[0006] Further, the outer shell includes a main body and a sealing cover arranged at the top of the main body. The sealing cover covers the top of the main body to form a sealed cavity inside the main body.

[0007] Further, the heat dissipation teeth include a plurality of aluminum sheets vertically arranged on the side wall of the outer shell, and a plurality of ventilation holes are respectively arranged through the aluminum sheets.

[0008] Further, the ventilation holes on two adjacent aluminum sheets are not on the same height line.

[0009] Further, a fan is installed on the heat dissipation teeth.

[0010] Further, a plurality of plug-in parts are integrally arranged on the side surface of the heat dissipation teeth. Slots mutually matched with the plug-in parts are respectively arranged on both sides of one end of the fan. A positioning mechanism for restricting the fan from moving along the length direction of the plug-in parts is arranged on the fan.

[0011] Further, the positioning mechanism includes an outer tube fixed on the fan, two sliding plates slidably arranged inside the outer tube, two positioning rods respectively fixed on the opposite sides of the two sliding plates, and a spring arranged on the opposite sides of the two sliding plates. One ends of the two positioning rods far away from the sliding plates both extend to the outside of the outer tube. Through holes mutually matched with the positioning rods are respectively arranged through the plug-in parts. Shift rods are respectively fixed on the sliding plates and extend to the outside of the outer tube. A strip-shaped sliding hole for accommodating the two shift rods to move back and forth along the length direction of the outer tube is arranged through the outer tube.

[0012] Furthermore, the outer side of the plug-in portion is covered with an elastic rubber pad, and a gap is reserved between the fan and the heat dissipation teeth.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) By setting the material of the shell to aluminum, which is light and low in cost, the outer side of the shell is integrally provided with heat dissipation teeth, which increases the heat dissipation area. At the same time, the intermediate transition layer between the heat dissipation teeth and the shell is reduced, and the heat conduction efficiency is greatly improved, which further improves the performance of the laser and extends the service life of the laser;

[0015] (2) Ventilation holes are provided on the heat dissipation teeth to facilitate air flow between the aluminum sheets, making heat dissipation more uniform;

[0016] (3) By providing a fan, air flow is driven, and by providing a positioning mechanism, the fan can be easily disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the top-sectional structure of the condenser box of the utility model;

[0020] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 5 This is a front view structural schematic diagram of the utility model.

[0022] In the figure: 1. shell; 101. main body; 102. sealing cover; 2. heat dissipation teeth; 201. ventilation holes; 202. plug-in part; 3. electrode; 4. optical device; 5. fan; 501. slot; 6. positioning mechanism; 601. outer tube; 6011. strip sliding hole; 602. slide plate; 603. positioning rod; 604. spring; 605. lever. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" 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 the terms "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 component 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.

[0024] Example 1, please refer to Figure 1 , an embodiment provided by the present utility model: an air-cooled semiconductor laser, including a housing 1, an electrode 3, and an optical device 4 disposed inside the housing 1. The housing 1 includes a main body 101 and a sealing cover 102 disposed at the top of the main body 101. The sealing cover 102 covers the top of the main body 101 to form a sealed cavity inside the main body 101. The optical device 4 is a prior art, mainly including a semiconductor chip, an optical lens, an end cap, etc. disposed inside the main body 101, and will not be described in detail here. The material of the housing 1 is aluminum, and heat dissipation teeth 2 are integrally disposed on the outer side wall of the housing 1. Specifically, the main body 101 is a rectangular parallelepiped structure with an open top, and the heat dissipation teeth 2 are disposed at the bottom of the main body 101. Further, the heat dissipation teeth 2 can also be integrally disposed on the outer peripheral wall of the housing 1 according to needs, or heat dissipation teeth 2 are simultaneously disposed on the outer peripheral wall. In the prior art, the housing is basically made of red copper, with a relatively heavy weight and a relatively high production cost. The heat dissipation structure is an aluminum part, and the two are fixed together by screws, with thermal conductive silicone grease applied in the middle. Since the thermal conductivity of the thermal conductive silicone grease is relatively low, and if the contact is not good or the silicone grease hardens, the heat conduction effect will become much worse. In this embodiment, by setting the material of the housing 1 as aluminum, the weight can be effectively reduced, which is very important for a portable laser, and the production cost can also be reduced. At the same time, the integral structure of the housing 1 and the heat dissipation teeth 2 reduces the intermediate transition layer, greatly improves the heat conduction efficiency, further improves the performance of the laser, and increases the service life of the laser;

[0025] In this embodiment, the heat dissipation teeth 2 are high-density teeth, and the high-density teeth greatly increase the heat dissipation area, improving the heat dissipation effect.

[0026] Example 2. Please refer to Figure 2 , on the basis of Example 1, the heat dissipation teeth 2 include a plurality of aluminum sheets vertically arranged on the side wall of the housing 1, and a plurality of ventilation holes 201 are penetrated through the aluminum sheets, so that air can flow between the aluminum sheets, and the heat dissipation is more uniform. Further, the ventilation holes 201 on two adjacent aluminum sheets are not on the same height line, which extends the air flow path and has a better heat exchange effect.

[0027] Example 3. Please refer to Figure 2-4 , on the basis of Example 1, a fan 5 is installed on the heat dissipation teeth 2, which can drive air flow and improve the heat dissipation effect. In this embodiment, the fan 5 is installed on the side of the heat dissipation teeth 2, and the number is set to three. The specific number is not limited and can be set according to the length of the laser. Further, the fan 5 can also be installed at the bottom of the heat dissipation teeth 2 according to needs. Specifically, a plurality of insertion parts 202 are integrally arranged on the side of the heat dissipation teeth 2. Slots 501 that match the insertion parts 202 are respectively arranged on both sides of one end of the fan 5. A positioning mechanism 6 for restricting the movement of the fan 5 along the length direction of the insertion part 202 is arranged on the fan 5. Specifically, the cross section of the insertion part 202 is a T-shaped structure, which is integrally formed with two aluminum sheets. After inserting the insertion parts 202 on both sides into the slots 501, the horizontal position of the fan 5 can be limited, and then the positioning of the fan 5 can be realized through the positioning mechanism 6;

[0028] Please refer to Figure 5 , the positioning mechanism 6 includes an outer tube 601 fixed on the fan 5, two sliding plates 602 slidably arranged inside the outer tube 601, two positioning rods 603 respectively fixed on the opposite sides of the two sliding plates 602, and a spring 604 arranged on the opposite sides of the two sliding plates 602. One ends of the two positioning rods 603 far away from the sliding plates 602 both extend to the outside of the outer tube 601. Through holes that match the positioning rods 603 are penetrated through the insertion part 202. Shift rods 605 are respectively fixed on the sliding plates 602, and the shift rods 605 extend to the outside of the outer tube 601. A strip-shaped sliding hole 6011 for accommodating the two shift rods 605 to move back and forth along the length direction of the outer tube 601 is penetrated through the outer tube 601. In the normal assembly state, under the elastic support of the spring 604, the two positioning rods 603 are inserted into the through holes on the insertion part 202. When the fan 5 needs to be disassembled, pinch the two shift rods 605 towards the middle, so that the two sliding plates 602 compress the spring 604 towards the middle, and the positioning rods 603 slide towards the middle and separate from the insertion part 202, and the disassembly and assembly of the fan 5 can be quickly realized, and then it is convenient to clean and maintain the heat dissipation teeth 2, avoiding more dust adhering to the surface and affecting its heat dissipation effect. In this embodiment, two positioning mechanisms 6 are arranged, which are respectively arranged at both ends of the length direction of the insertion part 202;

[0029] Furthermore, the outer side of the insertion part 202 is covered with an elastic rubber pad, and a gap is reserved between the fan 5 and the heat dissipation teeth 2. The elastic rubber pad can absorb part of the vibration during the operation of the fan 5, improving the stability of the laser during operation.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, 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, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An air-cooled semiconductor laser, comprising a housing (1), an electrode (3), and an optical device (4) disposed inside the housing (1), characterized in that: The material of the outer shell (1) is aluminum, and heat dissipation teeth (2) are integrally arranged on the outer side wall of the outer shell (1).

2. The air-cooled semiconductor laser according to claim 1, characterized in that: The heat dissipation teeth (2) are high-density teeth.

3. The air-cooled semiconductor laser according to claim 1, characterized in that: The outer shell (1) includes a main body (101) and a sealing cover (102) arranged at the top of the main body (101). The sealing cover (102) covers the top of the main body (101) to form a sealed cavity inside the main body (101).

4. The air-cooled semiconductor laser according to claim 1, characterized in that: The heat dissipation teeth (2) include a plurality of aluminum sheets vertically arranged on the side wall of the outer shell (1), and a plurality of ventilation holes (201) are penetrated through the aluminum sheets.

5. The air-cooled semiconductor laser according to claim 4, wherein: The ventilation holes (201) on two adjacent aluminum sheets are not on the same height line.

6. The air-cooled semiconductor laser according to claim 1, wherein: A fan (5) is installed on the heat dissipation teeth (2).

7. The air-cooled semiconductor laser according to claim 6, characterized in that: A plurality of insertion parts (202) are integrally arranged on the side surface of the heat dissipation teeth (2). Slots (501) that are mutually matched with the insertion parts (202) are respectively arranged on both sides of one end of the fan (5). A positioning mechanism (6) for restricting the fan (5) from moving along the length direction of the insertion parts (202) is arranged on the fan (5).

8. The air-cooled semiconductor laser according to claim 7, characterized in that: The positioning mechanism (6) includes an outer tube (601) fixed on the fan (5), two sliding plates (602) slidably arranged inside the outer tube (601), two positioning rods (603) respectively fixed on the opposite sides of the two sliding plates (602), and a spring (604) arranged on the opposite sides of the two sliding plates (602). One ends of the two positioning rods (603) far away from the sliding plates (602) both extend to the outside of the outer tube (601). Through holes that are mutually matched with the positioning rods (603) are penetrated through the insertion parts (202). Shift rods (605) are respectively fixed on the sliding plates (602), and the shift rods (605) extend to the outside of the outer tube (601). A strip-shaped sliding hole (6011) for accommodating the two shift rods (605) to move back and forth along the length direction of the outer tube (601) is penetrated through the outer tube (601).

9. The air-cooled semiconductor laser according to claim 7, characterized in that: The outer side of the insertion part (202) is coated with an elastic rubber pad, and a gap is reserved between the fan (5) and the heat dissipation teeth (2).

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