CN211860818U

CN211860818U - Light source cabinet

Info

Publication number: CN211860818U
Application number: CN202020918391.6U
Authority: CN
Inventors: 叶冠中; 任明轩; 任家盈
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-11-03
Anticipated expiration: 2030-05-27

Abstract

The present application relates to a light source cabinet. The light source case comprises a case body and a heat dissipation assembly. The box body is sealed to form a first containing cavity. And a mounting area is arranged in the first accommodating cavity. The mounting area is used for mounting a plurality of laser modules and light path adjusting components corresponding to the laser modules one to one. The heat dissipation assembly is arranged in the box body and adjacent to the installation area. The heat dissipation assembly is used for dissipating heat of the laser modules in the installation area, so that the laser modules can be uniformly dissipated. The light source case that this application provided has guaranteed that whole laser module temperature is unanimous and temperature variation is little, has reduced the influence of temperature to the homogeneity of final output piece light.

Description

Light source cabinet

Technical Field

The application relates to the technical field of optics, in particular to a light source cabinet.

Background

Planar Laser Induced Fluorescence (PLIF) is an optical detection technology widely applied to scalar field measurement in fluid, and the principle is that certain components in fluid are excited by Laser to emit Fluorescence, and a characteristic scalar field (a concentration field, a temperature field or a pH value field) in a range to be detected is obtained by detecting the distribution of Fluorescence intensity.

The PLIF measurement needs to place a laser in a chassis, but no special multi-path laser synthesis chip light source chassis exists in the traditional technology, and a general laser chassis only meets the heat dissipation and dust prevention requirements of a single laser module.

SUMMERY OF THE UTILITY MODEL

Based on this, this application provides a light source machine case to ensure a plurality of laser module temperature uniformity.

A light source chassis, comprising:

the box body surrounds to form a first accommodating cavity, and an installation area is arranged in the first accommodating cavity and used for installing a plurality of laser modules and light path adjusting components corresponding to the laser modules one to one;

and the heat dissipation assembly is arranged in the box body, is adjacent to the mounting area and is used for dissipating heat of a plurality of laser modules in the mounting area.

In one embodiment, the heat dissipation assembly includes:

the cooling plate is fixedly arranged on the box body and provided with a third accommodating cavity; and

and the cooling pipeline is arranged in the third accommodating cavity, and the third accommodating cavity is adjacent to the mounting area.

In one embodiment, the material of the cooling plate is a metal heat conduction material or a non-metal heat conduction material.

In one embodiment, the case includes:

the surface of the bottom plate is provided with the mounting area, the bottom plate is provided with a second containing cavity, the heat dissipation assembly is arranged in the second containing cavity, and the second containing cavity is adjacent to the mounting area.

In one embodiment, the case further includes:

the plurality of side plates are fixedly connected with the bottom plate in a sealing mode, an optical through hole is formed in one of the side plates and used for installing an optical output window, laser emitted by the laser module passes through the light path adjusting assembly to form sub-fan-shaped light beams, and the sub-fan-shaped light beams are output through the optical output window.

In one embodiment, the optical through holes are single strip-shaped through holes or array circular through holes.

In one embodiment, the optical output window comprises:

the output mirror is hermetically arranged in the optical through hole through a sealing element; and

and the gland is in compression connection with the output mirror so as to isolate the exchange of air inside and outside the box body.

In one embodiment, the case further includes:

the cover plate is connected with the side plates in a sealing and pressing mode, and a drying box is arranged on the cover plate.

In one embodiment, the drying box is detachably arranged on the cover plate.

In one embodiment, one of the side plates has an electrical through-hole formed therein for mounting an electrical connector for use in a vacuum environment.

The light source case comprises a case body and a heat dissipation assembly. The box body surrounds and forms a first containing cavity. And a mounting area is arranged in the first accommodating cavity. The mounting area is used for mounting a plurality of laser modules and light path adjusting components corresponding to the laser modules one to one. The heat dissipation assembly is arranged in the box body and adjacent to the installation area. The heat dissipation assembly is used for dissipating heat of the laser modules in the installation area, so that the laser modules can be uniformly dissipated. The light source case that this application provided has guaranteed that whole laser module temperature is unanimous and temperature variation is little, has reduced the influence of temperature to the homogeneity of final output piece light.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a light source chassis according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a light source chassis according to another embodiment of the present application;

fig. 3 is an exploded view of a light source housing according to an embodiment of the present application.

Description of the main element reference numerals

Box 10

First accommodation chamber 101

First sub-mount 102

Second sub-mount 103

Second accommodating cavity 104

The base plate 110

Side plate 120

Optical via 121

Optical output window 122

Output mirror 123

Sealing element 124

Gland 125

Electrical vias 126

Electrical connector 127

Cover plate 130

Box body 131

Box cover 132

Desiccant 133

Heat sink assembly 20

Cooling plate 210

Cooling duct 220

Third accommodation cavity 201

Laser module 30

Light path adjusting assembly 40

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The multi-path laser synthesis sheet light source is adopted, so that a plurality of laser modules are provided, a plurality of heating points are provided, all the sub-lasers are required to maintain the same temperature, and the design of the existing light source case shell can not meet the requirement.

The application provides a light source machine case. The light source cabinet includes a cabinet 10 and a heat dissipation assembly 20.

The case 10 encloses and forms a first receiving chamber 101. An installation area is arranged in the first accommodating cavity 101. The installation area is used for installing a plurality of laser modules 30 and light path adjusting members 40 corresponding to the plurality of laser modules 30 one to one. The heat dissipation assembly 20 is disposed on the box 10 and adjacent to the installation area. The heat dissipation assembly 20 is used for dissipating heat of the plurality of laser modules 30 in the mounting area, so as to ensure that the plurality of laser modules 30 dissipate heat uniformly.

Referring to fig. 1, it is understood that the shape and material of the case 10 are not particularly limited as long as a sealed accommodating cavity can be formed to accommodate the plurality of laser modules 30 and the optical path adjusting assemblies 40 corresponding to the plurality of laser modules 30 one to one. Alternatively, stainless steel is used as the material of the case 10 to maintain sufficient rigidity for resisting deformation. Optionally, the material of the box body 10 may also be a non-metal heat conduction material. The mounting area may be divided into a first sub-mounting area 102 and a second sub-mounting area 103. The first sub-mount section 102 is used to mount a plurality of laser modules 30. The second sub-mounting region 103 is used for mounting the optical path adjusting assembly 40.

It is to be understood that the specific structure of the heat dissipation assembly 20 is not particularly limited as long as the plurality of laser modules 30 can be uniformly dissipated. Alternatively, the heat dissipation assembly 20 may employ a water-cooled plate. The water-cooled plate is in good thermal contact with the bottom of the tank 10. A plurality of laser modules 30 and optical path adjusting assemblies 40 corresponding to the plurality of laser modules 30 one to one are installed at the bottom of the housing 10, and each laser module 30 is in good thermal contact with the bottom of the housing 10.

In this embodiment, the light source housing includes a housing 10 and a heat dissipation assembly 20. The case 10 is sealed to form a first receiving chamber 101. An installation area is arranged in the first accommodating cavity 101. The installation area is used for installing a plurality of laser modules 30 and light path adjusting members 40 corresponding to the plurality of laser modules 30 one to one. The heat sink assembly 20 is disposed on the case 10. The heat dissipation assembly 20 is disposed adjacent to the mounting region. The heat dissipation assembly 20 is used for dissipating heat of the plurality of laser modules 30 in the mounting area, so as to ensure that the plurality of laser modules 30 dissipate heat uniformly. The light source case provided by the application ensures that all the laser modules 30 are consistent in temperature and small in temperature change, and reduces the influence of temperature on the uniformity of the final output sheet light.

In one embodiment, the case 10 includes a bottom panel 110, a plurality of side panels 120, and a cover panel 130.

The surface of the bottom plate 110 has the mounting area, and the bottom plate 110 is provided with a second accommodating cavity 104. The heat sink assembly 20 is disposed in the second receiving cavity 104. The second receiving chamber 104 is disposed adjacent to the mounting area. The side plates 120 are fixedly connected with the bottom plate 110 in a sealing manner. The cover plate 130 is connected to the plurality of side plates 120 in a sealing and pressing manner.

Specifically, the side plates 120 are fixedly connected to the bottom plate 110 by sealing welding. The bottom plate 110 and the surrounding side plates 120 are integrated to form a housing having an opening. The cover plate 130 is connected with the side plates 120 by the sealing element 124 in a pressing manner, and can be detached while ensuring sealing. The sealing element 124 may be a sealing ring.

The heat dissipation assembly 20 includes a cooling duct 220. The cooling pipe 220 is laid in the second receiving chamber 104. The cooling pipe 220 is filled with cooling liquid. The cooling fluid may be water or other cooling fluid. The cooling pipe 220 output may be connected to a thermostatic water cooler. The second accommodating cavity 104 formed in the bottom plate 110 is disposed adjacent to the first sub-mounting region 102, the plurality of laser modules 30 are all mounted above the cooling duct 220, and the plurality of laser modules 30 and the cooling duct 220 have good thermal contact. The second receiving chamber 104 is isolated from the first receiving chamber 101 by a material of the bottom plate 110.

In this embodiment, the cooling duct 220 is installed in the base plate 110 to ensure uniform heat dissipation of the plurality of laser modules 30 installed on the base plate 110.

Referring to fig. 2, in one embodiment, the heat dissipation assembly 20 includes a cooling plate 210 and a cooling pipe 220.

The cooling plate 210 is fixedly installed in the case 10. The cooling plate 210 is opened with a third accommodating chamber 201. The cooling duct 220 is disposed in the third receiving cavity 201. The third accommodating cavity is arranged adjacent to the mounting area.

Optionally, the material of the cooling plate 210 is a metal heat conduction material or a non-metal heat conduction material. The cooling pipe 220 is filled with cooling liquid. The cooling fluid may be water or other cooling fluid. The cooling pipe 220 output may be connected to a thermostatic water cooler. The third accommodating cavity 201 formed in the cooling plate 210 is disposed adjacent to the first sub-mounting region 102, the plurality of laser modules 30 are all mounted above the cooling duct 220, and the plurality of laser modules 30 and the cooling duct 220 have good thermal contact through the bottom plate 110. The third receiving chamber 201 is isolated from the first receiving chamber 101 by the material of the bottom plate 110. At this time, the plurality of laser modules 30 are in good thermal contact with the base plate 110, and the base plate 110 is also in good thermal contact with the cooling plate 210.

In this embodiment, a whole cooling plate 210 is disposed at the bottom of the bottom plate 110, and a cooling duct 220 is installed in the cooling plate 210, so as to ensure uniform heat dissipation of the plurality of laser modules 30 installed on the bottom plate 110.

Referring to fig. 3, in one embodiment, one of the side plates 120 has an optical through hole 121 formed on the side plate 120. The optical through hole 121 is used for installing an optical output window 122, laser emitted by the laser module 30 passes through the light path adjusting assembly 40 to form sub-fan-shaped light beams, and the sub-fan-shaped light beams are output through the optical output window 122.

In one alternative embodiment, the optical through holes 121 are single stripe-shaped through holes or array circular through holes. Optionally, the optical output window 122 includes an output mirror 123 and a gland 125.

The output mirror 123 is sealingly disposed in the optical through-hole 121 by a sealing member 124. The gland 125 is connected to the output mirror 123 in a pressing manner to isolate the exchange of air between the inside and the outside of the chamber 10. The sealing element 124 may be a sealing ring. The optical output window 122 serves as an output window for the sub-sheet light and also as an isolation window, and prevents moisture and dust from entering the housing 10 due to the sealing ring and the gland 125.

In one embodiment, one of the side plates 120 defines an electrical through-hole 126 formed in the side plate 120, and the electrical through-hole 126 is used for mounting an electrical connector 127 used in a vacuum environment. It is understood that the electrical vias 126 can be provided on any one of the side plates 120, as long as the laser module 30 can be connected to a rear power supply line. In an alternative embodiment, the electrical through-hole 126 and the optical through-hole 121 are respectively opened on two opposite side plates 120. The power supply line behind the laser module 30 is connected with the electrical connector 127, and the electrical connector passes through the electrical through hole 126 on the rear side plate 120 and compresses tightly the inside and outside air exchange of the isolation box through a sealing gasket.

The front end of the laser module 30 emits laser, and forms a small-opening-angle fan-shaped laser after passing through the light path adjusting assembly 40, and the laser is output after passing through the output mirror 123. The output mirror 123 is mounted on the optical through hole 121 of the front side plate 120 in combination with the sealing ring, and isolates air exchange between the inside and the outside of the box.

In one embodiment, the light source cabinet further comprises a drying box. The drying box is disposed on the cover plate 130. The drying agent 133 may be placed in the drying box and the drying box may be sealed, and the drying agent 133 may adsorb moisture remaining in the cabinet 10 to maintain the inside of the cabinet 10 dry. The desiccant reduces the erosion of water vapor to the optical devices, and is the main protection function of the box body. In addition, an oxygen absorbent and a drying agent 133 can be put into the drying box at the same time to absorb oxygen in the box body 10, so that the aging of the electronic components caused by oxidation is slowed down.

In an alternative embodiment, the drying box is detachably disposed on the cover plate 130. Specifically, the drying box may include a box body 131 and a box cover 132. The cartridge body 131 may be formed of a perforated plate. The orifice plate is sealingly mounted to the cover plate 130. The box body 131 is connected to the box cover 132 through a sealing ring to isolate the air inside and outside the box body 10. The replacement of the desiccant 133 may be performed after the removal of the cassette cover 132.

In this embodiment, by providing the drying box, a drying space in the case 10 is ensured, and the service life of the laser module 30 is prolonged. And the erosion of the surface of the optical lens caused by water vapor can be removed by arranging the drying box.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A light source housing, comprising:

the laser module accommodating device comprises a box body, a first accommodating cavity and a second accommodating cavity, wherein the first accommodating cavity is enclosed by the box body, and the first accommodating cavity is internally provided with an installation area which is used for installing a plurality of laser modules and light path adjusting components which correspond to the laser modules one to one;

2. The light source cabinet of claim 1, wherein the heat sink assembly comprises:

3. The light source cabinet of claim 2, wherein the material of the cooling plate is a metal heat conducting material or a non-metal heat conducting material.

4. The light source cabinet of claim 1, wherein the cabinet comprises:

5. The light source cabinet of claim 4, wherein the cabinet further comprises:

the optical output window is used for installing an optical output window, laser emitted by the laser module passes through the light path adjusting assembly to form sub-fan-shaped light beams, and the sub-fan-shaped light beams are output through the optical output window.

6. The light source cabinet of claim 5, wherein the optical through hole is a single strip through hole or an array circular through hole.

7. The light source cabinet of claim 6, wherein the optical output window comprises:

8. The light source cabinet of claim 7, wherein the cabinet further comprises:

9. The light source cabinet of claim 8, wherein the drying box is detachably disposed on the cover plate.

10. The light source cabinet of claim 9, wherein one of the side panels has an electrical through hole formed therein for mounting an electrical connector for use in a vacuum environment.