CN220605200U - Optical module and laser - Google Patents

Abstract

The utility model provides an optical module and a laser, which relate to the field of optical modules, and adopts the following scheme: the LED lamp comprises a plurality of pumping light sources, wherein each pumping light source is provided with a radiating fin, and each radiating fin is provided with a fan assembly. The utility model can replace the water cooling part to pointedly dissipate heat of the pumping light source, improves the heat dissipation effect, satisfies the use of high-power lasers, and does not need to increase the sizes of the optical module and the lasers.

Description

Optical module and laser

Technical Field

The present utility model relates to the field of optical modules, and in particular, to an optical module and a laser.

Background

The optical module is an important component of the laser, is an element integrating the functions of a laser driving circuit, a receiving circuit, the laser, a light receiver and the like, and can convert an electric signal into an optical signal, transmit the optical signal through an optical fiber and then convert the optical signal back into an electric signal; the pumping light source is a main component of the optical module, and is used as an energy source to generate photons to excite the gain medium, most of the electric energy input into the pumping light source is converted into heat energy to be lost, and if proper cooling measures are not taken, the internal temperature of the pumping light source can be continuously increased, the working temperature allowed by the internal devices can be exceeded in a short time, and the pumping light source stops working.

In the prior art, an integral water cooling assembly is arranged on an optical module, and a plurality of pumping light sources are cooled simultaneously, so that the pumping light sources can work in an allowable working temperature range, the water cooling assembly comprises a water chiller with a compressor and used for providing circulating cold water and a cooling plate capable of radiating heat well, the processing technology of the water chiller is high in requirement, and the surface roughness, the flatness and the quality of the material of the cooling plate can directly influence the cooling effect.

However, as the power of the laser increases, the heat generated by the pump light source increases, the volume of the cold water and the size of the cooling plate need to be increased, otherwise, the heat dissipation requirement cannot be met, which leads to the increase of the volumes of the optical module and the laser, increases the cost, and limits the installation and use of the high-power laser.

Disclosure of Invention

In order to solve the problem that the pump light source in the optical module in the prior art is poor in heat dissipation, the utility model provides the optical module and the laser, which can be used for purposefully dissipating heat of the pump light source instead of a water cooling part, improving the heat dissipation effect, replacing water cooling heat dissipation, meeting the requirement of high-power laser use, and not increasing the sizes of the optical module and the laser.

The technical scheme adopted by the utility model for solving the technical problems is as follows: and each pumping light source is provided with a radiating fin, and each radiating fin is provided with a fan assembly. Through set up fin and fan subassembly on every pumping light source, can pertinently dispel the heat to the pumping light source, promote the radiating effect, satisfy high-power laser and use, need not to increase optical module and laser instrument size, replaced original integral water-cooling heat dissipation, guaranteed pumping light source and optical module's life, use the radiating maintenance cost of forced air cooling simultaneously low, no extra cooling water requirement, can not produce the condition such as leaking, change cooling water, additional cooling plate, reduced the potential safety hazard.

Further, the fan assembly comprises two fans, and the two fans are arranged in parallel and are respectively positioned at two ends of the radiating fin.

Further, the blowing directions of the two fans are opposite. Through setting up the fan direction of blowing at both ends opposite, can form the blowing and induced draft to the different ends of fin, strengthen the inside air flow of fin, further promote radiating efficiency.

Further, the radiating fin is detachably connected with the fan.

Further, the radiating fin is made of copper alloy materials.

Further, the radiating fin and the shell of the pumping light source are of an integrated structure. The radiating fin and the pumping light source are made into an integrated structure, so that the radiating fin and the pumping light source are made into a module by utilizing the conception of module design, and the optical module is convenient to assemble.

Further, the radiating fin comprises a plurality of radiating teeth, the tooth height of the radiating teeth is 20 mm-40 mm, the tooth thickness of the radiating teeth is 1 mm-2 mm, and the distance between two adjacent radiating teeth is 1 mm-2 mm.

Further, the pump light source comprises a beam combining unit, an optical fiber and a focusing lens, wherein the beam combining unit and the focusing lens are arranged in a shell of the pump light source, the optical fiber extends out of the shell, and the beam combining unit and the radiating fin are arranged oppositely.

The utility model also provides a laser device comprising the optical module.

Further, at least two optical modules are arranged.

From the above technical scheme, the utility model has the following advantages:

the utility model provides an optical module and a laser, which can pertinently radiate heat of a pump light source by arranging radiating fins and a fan assembly on each pump light source, improve the radiating effect, eliminate the need of increasing the sizes of the optical module and the laser, replace the original integral water cooling radiation, ensure the service lives of the pump light source and the optical module, simultaneously use the air cooling radiation to have low maintenance cost, have no additional cooling water requirement, avoid the conditions of water leakage, cooling water replacement, additional cooling plates and the like, and reduce the potential safety hazard; by arranging the fans at the two ends in opposite directions, the air blowing and the air suction at different ends of the radiating fin can be formed, the air flow in the radiating fin is enhanced, and the radiating efficiency is further improved; the radiating fin and the pumping light source are made into an integrated structure, so that the radiating fin and the pumping light source are made into a module by utilizing the conception of module design, and the optical module is convenient to assemble.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram illustrating an assembly structure of a pump light source, a heat sink and a fan assembly according to a first embodiment of the present utility model.

Fig. 2 is a schematic diagram of an assembly structure of a pump light source, a heat sink and a fan assembly according to a first embodiment of the present utility model.

Fig. 3 is a schematic diagram of an assembly structure of a pump light source, a heat sink and a fan assembly according to a first embodiment of the present utility model.

In the figure, 1, a pump light source, 2, a cooling fin, 3, a fan assembly, 301 and a fan.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.

Detailed description of the preferred embodiments

As shown in fig. 1 to 3, the present embodiment provides an optical module including a plurality of pump light sources 1, a heat sink 2 and a fan assembly 3; each pumping light source 1 is provided with a radiating fin 2, and each radiating fin 2 is provided with a fan assembly 3; through set up fin 2 and fan module 3 on every pumping light source 1, can pertinently dispel the heat to pumping light source 1, promote the radiating effect, need not to increase optical module and laser instrument size, replaced original integral water-cooling heat dissipation in the optical module, guaranteed pumping light source 1 and optical module's life, use the radiating maintenance cost of forced air cooling simultaneously low, no extra cooling water requirement, can not produce the condition such as leaking, change cooling water, additional cooling plate, reduced the potential safety hazard.

As shown in fig. 3, in order to further enhance the heat dissipation effect, the fan assembly 3 includes two fans 301, the two fans 301 are respectively located at two ends of the heat dissipation plate 2, and the blowing directions of the two fans 301 are opposite, in this embodiment, the fans 301 are detachably connected with the heat dissipation plate 2 through screws, the two fans 301 are arranged in parallel, and the mounting directions are opposite, and by arranging the blowing directions of the fans 301 at the two ends opposite, blowing and suction of different ends of the heat dissipation plate 2 can be formed, so that the air flow in the heat dissipation plate 2 is enhanced, and the heat dissipation efficiency is further enhanced; the heat dissipation fin 2 comprises a plurality of heat dissipation teeth, the tooth heights of the heat dissipation teeth are 20 mm-40 mm, the tooth thicknesses of the heat dissipation teeth are 1 mm-2 mm, the distance between two adjacent heat dissipation teeth is 1 mm-2 mm, in the specific embodiment, the tooth heights of the heat dissipation teeth are 30mm, the tooth thicknesses of the heat dissipation teeth are 1.5mm, and the distance between the heat dissipation teeth is 1.5mm; the heat sink 2 is made of copper alloy material.

In order to facilitate assembly, the radiating fin 2 and the shell of the pumping light source 1 are of an integrated structure, and the shell of the pumping light source 1 is also made of copper alloy; the radiating fin 2 and the pump light source 1 are made into an integrated structure, so that the radiating fin 2 and the pump light source 1 are made into a module by utilizing the conception of module design, and the optical module is convenient to assemble; in this embodiment, the pump light source 1 includes a beam combining unit, an optical fiber, and a focusing lens, where the beam combining unit and the focusing lens are disposed in a housing of the pump light source 1, the optical fiber extends out of the housing, the beam combining unit is a main heat source, the beam combining unit includes a reflecting portion, a beam combining portion, a half-wave plate, and a slow axis collimating portion, the focusing lens couples a light beam emitted from the slow axis collimating portion into the optical fiber, and the beam combining unit is disposed opposite to the heat sink 2.

Detailed description of the preferred embodiments

The present embodiment provides a laser, including the optical module in the first embodiment, where one or at least two optical modules may be provided, and when one optical module is provided, a single-mode laser, and when a plurality of optical modules are provided, a multimode laser, and in the present embodiment, the lasers are multimode lasers, and the optical module is provided with three optical modules.

Because the optical module of the higher power laser adopts integral water cooling more, but along with the increase of power, the heat radiation capability also needs to be improved, the corresponding water cooling part is increased in size, the optical module is increased in size, thereby the overall size of the laser is increased, the use of the water-cooled high power laser is limited, in addition, the introduction of the water cooling machine and the cooling plate causes the increase of cost, volume and maintenance difficulty, the application of the water-cooled high power laser on economic portable processing equipment is limited, in this specific embodiment, the fan assembly 3 and the cooling fin 2 are adopted to conduct targeted heat radiation on the pumping light source 1, the heat radiation effect is improved, thereby the integrally arranged water cooling part is replaced, the heat radiation effect is good, the volume of the optical module is not required to be increased, and the water-cooled high power laser is more suitable for use.

From the above detailed description, it can be seen that the present utility model has the following advantages:

1. the radiating fins 2 and the fan assembly 3 are arranged on each pump light source 1, so that the pump light source 1 can be radiated in a targeted manner, the radiating effect is improved, the sizes of the optical module and the laser are not required to be increased, the original integral water-cooling radiating is replaced, the service lives of the pump light source 1 and the optical module are ensured, meanwhile, the maintenance cost of air-cooling radiating is low, the requirement of extra cooling water is avoided, the conditions of water leakage, cooling water replacement, an additional cooling plate and the like are avoided, and the potential safety hazard is reduced;

2. by arranging the fans 301 at the two ends in opposite blowing directions, blowing and suction to different ends of the radiating fin 2 can be formed, so that air flow in the radiating fin 2 is enhanced, and radiating efficiency is further improved;

3. by making the radiating fin 2 and the pump light source 1 into an integrated structure, the radiating fin 2 and the pump light source 1 become a module by utilizing the conception of module design, thereby facilitating the assembly of the optical module.

The terms "upper," "lower," "outboard," "inboard," and the like in the description and in the claims of the utility model and in the above figures, if any, are used for distinguishing between relative relationships in position and not necessarily for giving qualitative sense. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. An optical module comprising a plurality of pump light sources (1), characterized in that: all be provided with fin (2) on every pumping light source (1), all be provided with fan unit spare (3) on every fin (2), fan unit spare (3) are including two fans (301), and two fans (301) set up side by side and are located the both ends of fin (2) respectively, and the direction of blowing of two fans (301) is opposite.

2. A light module as claimed in claim 1, characterized in that the heat sink (2) is detachably connected to the fan (301).

3. An optical module as claimed in any one of claims 1-2, characterized in that the heat sink (2) is of copper alloy material.

4. An optical module as claimed in claim 3, characterized in that the heat sink (2) is of integral construction with the housing of the pump light source (1).

5. A light module as claimed in claim 3, characterized in that the heat sink (2) comprises a plurality of heat dissipating teeth, the tooth height of the heat dissipating teeth being 20 mm-40 mm, the tooth thickness of the heat dissipating teeth being 1 mm-2 mm, the spacing between two adjacent heat dissipating teeth being 1 mm-2 mm.

6. An optical module as claimed in claim 4, characterized in that the pump light source (1) comprises a beam combining unit, an optical fiber and a focusing mirror, the beam combining unit and the focusing mirror being arranged in a housing of the pump light source (1), the optical fiber extending out of the housing, the beam combining unit being arranged opposite the heat sink (2).

7. A laser comprising the optical module of claim 6.

8. The laser of claim 7, wherein at least two optical modules are provided.