CN215986867U

CN215986867U - Immersed heat dissipation system of laser projection equipment

Info

Publication number: CN215986867U
Application number: CN202122052415.1U
Authority: CN
Inventors: 殷为国
Original assignee: Suzhou Yuanze Iot Technology Co ltd
Current assignee: Suzhou Yuanze Iot Technology Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-03-08
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses an immersed heat dissipation system of laser projection equipment, which is applied to the field of the laser projection equipment and has the technical scheme that: the projector comprises a projector shell, a laser placing groove for placing a laser lamp and an imaging placing groove for placing an imaging chip, wherein the laser placing groove and the imaging placing groove are both arranged in the projector shell; cooling assemblies are arranged in the laser placing groove and the imaging placing groove; the cooling assembly comprises heat-conducting fluid, a cooling tank, a throwing pipe for throwing the heat-conducting fluid and a return pipe for recovering the heat-conducting fluid, and the throwing pipe and the return pipe are both communicated with the cooling tank; one end of the return pipe, which is far away from the cooling tank, is communicated with a return liquid pump, a water inlet of the return liquid pump is communicated with the return pipe, a water outlet of the return liquid pump is communicated with a throwing pipe, and a refrigeration assembly is connected to the throwing pipe; has the technical effects that: the heat dissipation of the heating components in the laser projection equipment can be more fully realized.

Description

Immersed heat dissipation system of laser projection equipment

Technical Field

The utility model relates to the field of laser projection equipment, in particular to an immersed heat dissipation system of the laser projection equipment.

Background

At present, chinese patent application with publication number CN112526810A discloses a laser projection apparatus, which comprises a laser source, an optical machine and a lens, which are sequentially connected along a light beam propagation direction, in a complete machine housing, wherein a red laser component is installed on one side surface of the laser source housing, and a blue laser component and a green laser component are installed on the other side surface perpendicular to the installation side surface of the red laser component; the back of the red laser component is attached with a cold head and radiates heat through a cold row; the back surfaces of the blue laser assembly and the green laser assembly are attached to one surface of the heat conduction cavity plate, the other surface of the heat conduction cavity plate is connected with a plurality of heat pipes, and the heat pipes extend into the heat dissipation fins; the cooling device comprises a cooling row, a first fan, a second fan and a cooling fin, wherein the first fan is arranged corresponding to the cooling row, airflow of the first fan flows through the cooling row and then sequentially blows to an optical machine and a circuit board, the second fan is arranged corresponding to the cooling fin, and airflow of the second fan flows through the cooling fin and then sequentially blows to a lens and the circuit board.

The existing laser projector generally adopts a heat radiating fin to be attached to a heating part, so that heat is conducted and radiated; however, the heat dissipation fins are difficult to be attached to heating parts sufficiently, and the heat dissipation efficiency is often difficult to meet the requirement of long-term operation of the laser projector.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an immersed heat dissipation system of laser projection equipment, which has the advantage that heat of a heating component in the laser projection equipment can be more fully dissipated.

The technical purpose of the utility model is realized by the following technical scheme: an immersed heat dissipation system of a laser projection device comprises a projector shell, a laser placing groove used for placing a laser lamp and an imaging placing groove used for placing an imaging chip, wherein the laser placing groove and the imaging placing groove are both arranged in the projector shell;

cooling assemblies are arranged in the laser placing groove and the imaging placing groove;

the cooling assembly comprises heat-conducting fluid, a cooling tank, a throwing pipe for throwing the heat-conducting fluid and a return pipe for recovering the heat-conducting fluid, and the throwing pipe and the return pipe are both communicated with the cooling tank;

the one end intercommunication that the cooling bath was kept away from to the back flow has the backward flow liquid pump, the water inlet and the back flow intercommunication of backward flow liquid pump, the delivery port and the input pipe intercommunication of backward flow liquid pump, be connected with the refrigeration subassembly on the input pipe.

Through the technical scheme, the cooling groove is used for storing the heat-conducting fluid so that the heat-conducting fluid is fully contacted with the laser lamp and the imaging chip, and heat generated by the laser lamp and the imaging chip can be conducted into the heat-conducting fluid; the feeding pipe is used for conveying the heat-conducting fluid into the cooling tank, the return pipe is used for guiding the heat-conducting fluid at the bottom of the cooling tank into the return liquid pump, and the return liquid pump is used for pumping and discharging the heat-conducting fluid so that the heat-conducting fluid can circulate in the projector shell; the refrigeration assembly is used for diffusing the heat absorbed by the heat-conducting fluid into the air, so that the heat-conducting fluid input into the cooling tank is always kept at a lower temperature, and the laser lamp and the imaging chip are cooled better.

The utility model is further configured to: the refrigeration assembly comprises a radiating pipe and radiating fins, and two ends of the radiating pipe are respectively communicated with the feeding pipe and a water outlet pipe of the reflux liquid pump;

the radiating fins are evenly arrayed in a plurality, and the radiating pipe penetrates through the radiating fins simultaneously.

Through above-mentioned technical scheme, the cooling tube is arranged in guiding out the heat conduction fluid that has absorbed heat in the cooling bath, and radiating fin is used for contacting with the cooling tube, and radiating fin has great contact surface with the air to the heat diffusion that produces the heat conduction fluid.

The utility model is further configured to: the radiating fin outer cover is provided with a protective shell, radiating holes are formed in the protective shell, and radiating fans are arranged at the radiating holes.

Through the technical scheme, the protective shell can prevent external dust from being accumulated on the radiating fins so as to keep the contact area between the radiating fins and air and prevent people from mistakenly touching the radiating fins; the heat radiation fan is used for promoting the air circulation in the protective shell so as to accelerate the heat radiation efficiency of the heat radiation fins.

The utility model is further configured to: the radiating pipe is arranged in a serpentine bending mode.

Through above-mentioned technical scheme, the cooling tube that snakelike crooked set up has increased cooling tube and radiating fin's area of contact, improvement radiating efficiency that can be better.

The utility model is further configured to: all be fixed with transparent waterproof division board in laser standing groove and the formation of image standing groove, the cooling bath is enclosed by waterproof division board and laser standing groove or the lateral wall of formation of image standing groove and establishes and form.

Through above-mentioned technical scheme, waterproof division board is arranged in restricting the heat-conducting fluid in the cooling bath, better avoid the heat-conducting fluid to leak other places outside the cooling bath for laser projection equipment can more stable operation.

The utility model is further configured to: the waterproof partition plate is made of high-light-transmission optical glass.

Through the technical scheme, the optical glass has better light transmittance, so that the influence of the waterproof partition plate on laser propagation is avoided, and the stable image quality of the laser projection equipment is ensured under the condition that the cooling liquid is stably stored in the cooling tank.

The utility model is further configured to: the cooling assembly is disposed outside the projector housing.

Through the technical scheme, the refrigeration assembly and the projector shell can be arranged independently, so that the projector shell can be made into a totally enclosed type, dust, dirt and the like can be better prevented from entering the projector, and stable operation of internal components can be better ensured; meanwhile, the surface of the projector can also be made into a smooth surface, so that the projector is convenient to manage, and the integral cleanliness of the projector is improved.

The utility model is further configured to: the heat transfer fluid is an optical coolant.

Through above-mentioned technical scheme, the optics coolant liquid has higher boiling point, and heat conduction efficiency is high moreover to the absorption laser lamp that can be faster and the heat that imaging chip produced.

In conclusion, the utility model has the following beneficial effects:

1. the cooling tank is used for storing heat-conducting fluid, the heat-conducting fluid can absorb heat generated by laser and the like and the imaging chip, the reflux pump promotes the circulation speed of the heat-conducting fluid, and meanwhile, the refrigeration assembly can quickly dissipate the heat absorbed by the heat-conducting fluid, so that the heat dissipation efficiency of the laser projection equipment is better improved;

2. the refrigeration assembly and the laser projection equipment are arranged in a split mode, and heat dissipation holes are better prevented from being formed in the laser projection equipment.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of the refrigeration unit of the present embodiment.

Reference numerals: 1. a projector housing; 2. a laser placing groove; 3. an imaging placement slot; 4. a cooling assembly; 6. a cooling tank; 7. a casting pipe; 8. a return pipe; 9. a reflux pump; 10. a refrigeration assembly; 11. a radiating pipe; 12. a heat dissipating fin; 13. a protective shell; 14. heat dissipation holes; 15. a heat radiation fan; 16. a waterproof partition plate; 17. a laser light; 18. an imaging chip.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, an immersion type heat dissipation system of a laser projection apparatus includes a projector housing 1, a laser placement tank 2, and an imaging placement tank 3; the laser placing grooves 2 are used for placing the laser lamps 17, and the number of the laser placing grooves 2 is set according to the specific situation of the laser lamps 17; the imaging placing groove 3 is used for placing an imaging chip 18, and the imaging chip 18 is preferably a DMD chip; the laser lamp 17 and the imaging chip 18 are the main heating components of the laser projection device.

Referring to fig. 1 and 2, cooling assemblies 4 are arranged in the laser placement groove 2 and the imaging placement groove 3, and each cooling assembly 4 comprises a heat-conducting fluid, a cooling groove 6, a feeding pipe 7 and a return pipe 8; all be fixed with transparent waterproof division board 16 in laser standing groove 2 and the formation of image standing groove 3, cooling tank 6 is enclosed by waterproof division board 16 and laser standing groove 2 or the lateral wall of formation of image standing groove 3 and establishes and form, and waterproof division board 16 is preferably made for high printing opacity's optical glass.

Referring to fig. 1 and 2, the heat transfer fluid is optical cooling liquid, an outlet of the feeding pipe 7 is arranged at the upper side of the cooling tank 6, and an inlet of the return pipe 8 is arranged at the bottom of the cooling tank 6; the heat-conducting fluid flows into the lower part from the upper part of the cooling groove 6, and the heat-conducting fluid is fully contacted with the laser lamp 17 and the imaging chip 18 during circulation, so that the heat generated by the laser lamp 17 and the imaging chip 18 can be quickly taken away.

Referring to fig. 1 and 3, one end of the return pipe 8, which is far away from the cooling tank 6, is communicated with a return liquid pump 9, an inlet of the return liquid pump 9 is communicated with the return pipe 8, and a refrigeration assembly 10 is arranged between the return liquid pump 9 and the feeding pipe 7; the cooling module 10 includes a radiating pipe 11 and radiating fins 12, the radiating pipe 7 is communicated with the outlet of the radiating pipe 11, the inlet of the radiating pipe 11 is communicated with the outlet of the reflux pump 9, and the outlet of the radiating pipe 11 is higher than the inlet thereof.

Referring to fig. 3, the heat dissipation pipe 11 is serpentine-shaped and curved, the heat dissipation fins 12 are uniformly arrayed along the length direction of the heat dissipation pipe 11, the heat dissipation pipe 11 runs through the heat dissipation fins 12, the outer cover of the heat dissipation fins 12 is provided with a protective shell 13, one side of the protective shell 13 is provided with an opening, a ventilation channel is arranged between the protective shell 13 and the heat dissipation fins 12, a heat dissipation hole 14 communicated with the inside of the protective shell 13 is formed in the protective shell 13, the protective shell 13 is positioned at the heat dissipation hole 14 and is connected with a heat dissipation fan 15 through a bolt, the heat dissipation fan 15 can accelerate the circulation of air inside and outside the protective shell 13, so that the heat absorbed by the heat conduction fluid is dissipated, and the purpose of cooling is realized.

When the reflux pump 9 operates, the heat dissipation fan 15 also operates synchronously, external gas enters the protective shell 13 from one side of the protective shell 13, and the gas is discharged from the heat dissipation holes 14 after contacting the heat dissipation fins 12, namely, heat on the heat dissipation fins 12 can be dissipated into the air.

The working process is briefly described as follows: when the laser projection equipment operates, the laser lamp 17 and the imaging chip 18 work and generate heat; the heat is absorbed by the heat transfer fluid stored in the cooling bath 6, and the heat transfer fluid is delivered to the radiating pipe 11 by the return fluid pump 9; the heat in the heat-conducting fluid is diffused into the air by the heat-radiating fan 15 and the heat-radiating fins 12, so that the heat-conducting fluid is cooled; the heat transfer fluid flows back to the cooling tank 6, and the circulation is repeated, so that the stability in the laser projection device is kept.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An immersed heat dissipation system of a laser projection device comprises a projector shell (1), a laser placing groove (2) used for placing a laser lamp (17) and an imaging placing groove (3) used for placing an imaging chip (18), wherein the laser placing groove (2) and the imaging placing groove (3) are both arranged in the projector shell (1);

the device is characterized in that cooling assemblies (4) are arranged in the laser placing groove (2) and the imaging placing groove (3);

the cooling assembly (4) comprises heat-conducting fluid, a cooling tank (6), a throwing pipe (7) for throwing the heat-conducting fluid and a return pipe (8) for recovering the heat-conducting fluid, the throwing pipe (7) and the return pipe (8) are both communicated with the cooling tank (6), and the cooling tank (6) is obtained by dividing a laser placing tank (2) and an imaging placing tank (3);

one end of the return pipe (8) far away from the cooling tank (6) is communicated with a return liquid pump (9), a water inlet of the return liquid pump (9) is communicated with the return pipe (8), a water outlet of the return liquid pump (9) is communicated with a feeding pipe (7), and a refrigerating assembly (10) is connected onto the feeding pipe (7).

2. An immersion cooling system of a laser projection apparatus as claimed in claim 1, wherein the cooling module (10) comprises a heat dissipation pipe (11) and a heat dissipation fin (12), and both ends of the heat dissipation pipe (11) are respectively communicated with the discharge pipe (7) and the outlet pipe of the reflux liquid pump (9);

the radiating fins (12) are uniformly arrayed in a plurality, and the radiating pipe (11) penetrates through the radiating fins (12) simultaneously.

3. The immersed heat dissipation system of the laser projection apparatus as claimed in claim 2, wherein the heat dissipation fins (12) are covered by a protective shell (13), the protective shell (13) is provided with heat dissipation holes (14), and the heat dissipation holes (14) are provided with heat dissipation fans (15).

4. An immersion heat dissipation system of a laser projection apparatus as claimed in claim 2, wherein the heat dissipation pipe (11) is disposed in a serpentine shape.

5. An immersion heat dissipation system of a laser projection apparatus as claimed in claim 1, wherein a transparent waterproof partition plate (16) is fixed in each of the laser placement tank (2) and the imaging placement tank (3), and the cooling tank (6) is surrounded by the waterproof partition plate (16) and the side wall of the laser placement tank (2) or the imaging placement tank (3).

6. An immersion heat removal system for a laser projection apparatus as claimed in claim 5, wherein the waterproof partition plate (16) is a high-light-transmission optical glass.

7. An immersion heat dissipation system for a laser projection apparatus as claimed in claim 1, characterized in that the cooling assembly (10) is arranged outside the projector housing (1).

8. An immersion cooling system for a laser projection apparatus as claimed in claim 1, wherein the heat transfer fluid is an optical coolant.