CN212749507U

CN212749507U - Projector

Info

Publication number: CN212749507U
Application number: CN202022221750.5U
Authority: CN
Inventors: 王志军; 刘建平
Original assignee: Guangdong Night Sun Technology Group Co ltd
Current assignee: Guangdong Night Sun Technology Group Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-03-19
Anticipated expiration: 2030-09-30

Abstract

The projector of the utility model comprises a shell, a projection element and a heat dissipation component, wherein the projection element and the heat dissipation component are arranged in the shell; the heat dissipation assembly comprises a circulation unit for flowing of a cooling medium, and the circulation unit consists of a heat receiving exchange part, a connecting pipeline and a heat discharge exchange part which are sequentially connected and used for exchanging the heat of the projection element; the heat dissipation assembly also comprises a circulating power device connected with the circulating unit and a wind power device matched with the circulating unit for heat removal; wherein, the heat extraction exchange part and the wind power device are arranged in front and back along the air flow direction; during heat dissipation, the heat of the heat receiving and exchanging part is transferred to the heat exhaust and exchanging part through the connecting pipeline, and the heat exhaust and exchanging part is matched with the wind power device and used for exhausting the heat to the external environment. The utility model discloses avoided wind-force device's cold wind directly to blow heat extraction exchange portion, and then prevented the hot-blast recoil back cavity behind the heat transfer. The position of the wind power device is closer to the external space, which is beneficial to heat dissipation, the wind resistance of air exhaust is also reduced, and the energy-saving wind power energy consumption is facilitated.

Description

Projector

Technical Field

The utility model relates to a projector cooling system technical field, more specifically relates to a projector.

Background

At present, most of heat dissipation systems for projectors use air cooling systems, that is, air flows inside and outside the projector are accelerated by forced air flow, and air is used as a heat carrier to dissipate heat. However, the space of the projector is limited, and the heat transfer coefficient of air is small, so that it is difficult to achieve a good heat dissipation effect under the double limitation. In order to improve heat dispersion, the utility model patent of prior art china utility model "CN 210428064U an ultrashort burnt projector structure" is connected the passive heating element contact among water cooling system and the projection subassembly, derives the heat through the higher coolant of this kind of heat capacity of water earlier, and the rethread suction fan is to the hot water cooling of deriving, and the water after the cooling gets into the district that generates heat again, so the circulation is reciprocal, has realized high-efficient cooling.

Although the above technical solution improves the heat exchange efficiency, there is still room for further improvement in the spatial layout of the fan and the heat-exhaust and heat-exchange portion, the spatial positions of the heat-conducting duct and the fan, and the like. Moreover, the improvement on the space can also reduce the wind resistance, improve the energy utilization rate and realize the energy-saving effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first aim at to above-mentioned defect and not enough, aim at solving among the current projector that the cooling system is hot-blast backmixing, windage are big, and wind-force device keeps away from the air outlet and causes the technical problem that heat dispersion reduced, provides a projector.

Another object of the present invention is to provide a projector with increased heat dissipation area, which is more favorable for heat dissipation.

Another object of the present invention is to provide a projector with a wind power device separated from a circulating unit module, and convenient to disassemble, assemble and maintain.

Another object of the utility model is to provide a projection element, radiator unit are integrated to be installed in the installation mainboard, can directly cooperate the installation mainboard and the fuselage casing that assemble during the equipment, and then reach easy to assemble's projector.

In order to achieve the above object, the utility model discloses a specific technical scheme be:

the projector of the utility model comprises a shell, a projection element and a heat dissipation component, wherein the projection element and the heat dissipation component are arranged in the shell; the heat dissipation assembly comprises a circulation unit for flowing of a cooling medium, and the circulation unit consists of a heat receiving exchange part, a connecting pipeline and a heat discharge exchange part which are sequentially connected and used for exchanging the heat of the projection element; the heat dissipation assembly further comprises a circulating power device connected with the circulating unit and a wind power device matched with the circulating unit for heat removal; wherein the heat removal exchange part and the wind power device are arranged in front and back along the air flow direction; during heat dissipation, the heat of the heat receiving and exchanging part is transferred to the heat exhaust and exchanging part through the connecting pipeline, and the heat exhaust and exchanging part is matched with the wind power device and used for exhausting the heat to the external environment.

Multiplicable heat radiating area, more be favorable to in the radiating projector, heat extraction exchange portion includes porous heat extraction structure.

Preferably, the porous heat discharging structure includes a grid hole penetrating in an air flow direction.

Preferably, the grid holes are arranged in a staggered and spaced mode.

In the projector of wind-force device and circulation unit module separation, be convenient for dismouting and maintenance, the projection of connecting pipeline along the air flow direction is covered by wind-force generating face of wind-force device.

Preferably, the heat dissipation assembly further comprises an air cooling heat dissipation assembly and/or a fin heat dissipation assembly matched with the projection element.

Projection component, radiator unit are integrated to be installed in the installation mainboard, can directly cooperate the installation mainboard and the fuselage casing that assemble during the equipment, and then reach in easy to assemble's projector, still including the installation mainboard, projection component and radiator unit are integrated to be installed in the installation mainboard.

Preferably, the casing includes fuselage casing and the closing cap casing of being connected with the fuselage casing, the fuselage casing passes through the pre-installation structure with the installation mainboard and is connected, the pre-installation structure includes the pre-installation groove and the pre-assembly of mutually supporting.

Preferably, the pre-assembly groove is composed of a plurality of parallel arranged tooth grooves, and the pre-assembly comprises convex teeth matched with the tooth grooves.

Preferably, a sealing rubber ring is arranged at the joint of the shell and the cover shell.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses well heat extraction exchange portion sets gradually with wind power installation along the air flow direction, and heat extraction exchange portion sets up in front at wind power installation promptly, has avoided wind power installation's cold wind directly to blow heat extraction exchange portion, and then prevents the hot-blast recoil cavity behind the heat transfer, can realize better radiating effect like this. Moreover, the position of the wind power device is closer to the external space, which is beneficial to heat dissipation, the air exhaust does not need to overcome recoil force, the air exhaust wind resistance is also reduced, and the energy saving and wind power consumption are facilitated.

On the basis, the utility model discloses further set heat extraction exchange portion to the grid structure, can increase heat radiating area, more be favorable to the heat dissipation.

Furthermore, the utility model discloses well connecting pipe way is covered by wind power generation face of wind power device along the projection of air flow direction for heat extraction exchange portion, connecting pipe way are all established in front, are favorable to increasing the windward area, and the heat transfer is effectual. In the aspect of the installation, exhaust fan and heat conduction water pipe are crisscross among the prior art, the dismouting of being not convenient for, and wind-force device and water-cooling subassembly module separation are favorable to dismantling and installing in this application.

Furthermore, the utility model discloses well projection element, radiator unit are integrated to be installed in the installation mainboard, can directly cooperate the installation mainboard and the casing that assemble during the equipment, and then reach easy to assemble's projector.

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

Drawings

Fig. 1 is a schematic diagram of an explosion structure of a projector according to a preferred embodiment of the present invention.

Fig. 2 is an exploded schematic view of a water-cooled heat dissipation assembly and a laser chip according to a preferred embodiment of the present invention.

Fig. 3 is a schematic view of the structure of the water-cooling heat dissipation assembly and the laser chip according to the preferred embodiment of the present invention.

Fig. 4 is a schematic view of the structure of the fuselage shell in the preferred embodiment of the present invention.

Description of reference numerals:

10 casing, 11 fuselage casing, 12 closure casing, 13 pre-assembly structure, 131 pre-assembly groove, 132 pre-assembly, 1321 tooth groove, 1322 convex tooth, 14 sealing rubber ring,

20 projection element, 21 focusing unit, 211 lens, 212 focusing gear, 213 focusing motor, 22 laser chip, 23 driving PCB board,

30 heat dissipating modules, 31 circulation units, 311 heat collecting and exchanging units, 312 connecting pipes, 313 heat discharging and exchanging units, 3131 porous heat discharging structures, 3132 grid holes, 32 circulation power devices, 33 wind power devices, 34 air cooling heat dissipating modules, 35 fin heat dissipating modules,

40 a motherboard is installed.

Detailed Description

The present invention is further explained and illustrated by the following embodiments, it should be understood that the following embodiments are for the purpose of making the technical solution of the present invention clearer and easier to understand, and do not limit the scope of the claims.

As shown in fig. 1-2, the projector of the present invention includes a housing 10, wherein a projection element 20 capable of passively generating heat and a heat dissipation assembly 30 are disposed in the housing 10; the heat dissipation assembly 30 includes a circulation unit 31 for flowing a cooling medium, a circulation power device 32, and a wind power device 33, the circulation unit 31 includes a heat receiving and exchanging portion 311, a connecting pipeline 312, and a heat discharging and exchanging portion 313, which are connected in sequence, for exchanging heat of the projection element 20, wherein the heat discharging and exchanging portion 313 and the wind power device 33 are arranged in sequence along an air flowing direction; during heat dissipation, the heat of the heat receiving and exchanging portion 311 is transferred to the heat exhaust and exchanging portion 313 through the connection pipe 312, and the heat exhaust and exchanging portion 313 cooperates with the wind power device 33 to exhaust the heat to the external environment.

Multiplicable heat radiating area, more be favorable to in the radiating projector, heat extraction exchange portion 313 includes porous heat extraction structure 3131.

In a preferred embodiment, the porous heat-extraction structure 3131 comprises grid holes 3132 running through in the direction of air flow.

In a preferred embodiment, the grating holes 3132 are arranged in a staggered and spaced manner.

In the projector of wind-force device and circulation unit module separation, the dismouting of being convenient for and maintenance, connecting line 312 is covered by wind-force generating face of wind-force device 33 along the projection of air flow direction.

In a preferred embodiment, the heat sink assembly 30 further comprises an air-cooled heat sink assembly 34 and/or a fin heat sink assembly 35 that cooperate with the projection element 20, as shown in fig. 3.

Projection component, radiator unit are integrated to be installed in the installation mainboard, can directly cooperate the installation mainboard and the fuselage casing that assemble during the equipment, and then reach in the projector easy to assemble, still including installation mainboard 40, projection component 20 and radiator unit 30 are integrated to be installed in installation mainboard 40.

In a preferred embodiment, the housing 10 includes a body housing 11, and a cover housing 12 connected to the body housing 11, the body housing 11 is connected to the mounting main board 40 by a pre-assembly structure 13, and the pre-assembly structure 13 includes a pre-assembly groove 131 and a pre-assembly 132 which are matched with each other.

In a preferred embodiment, as shown in fig. 4, the pre-assembly slot 131 is comprised of a plurality of parallel arranged splines 1321, and the pre-assembly 132 includes a protruding tooth 1322 that mates with the splines 1321.

In a preferred embodiment, the housing 10 and the closure housing 12 are provided with a sealing rubber ring 14 at the junction.

The present invention will be further described with reference to the following specific examples.

Example 1

The projector comprises a shell 10 and a main board 40, wherein the main board 40 is installed inside the shell 10 and used for installing a projection assembly 20 and a heat dissipation assembly 30. The housing 10 includes a front cover 12, a body 11, and a rear cover 12. The front cover and the rear cover are respectively connected with the body to form a projector main body. Toughened glass, an upper cover toughened glass waterproof rubber ring, an upper cover waterproof rubber ring pressing plate, a red outer plate and an upper cover waterproof rubber ring are sequentially arranged between the front cover and the machine body. Fuselage 11 and back lid are equipped with switching power supply, broadcast PCB board, glue fixed plate, the waterproof rubber ring of socket in proper order within a definite time, the socket fixed plate, waterproof three-core output cannon seat, waterproof usb seat, waterproof power input seat. Fuselage 11, including the gallows fixed slot that the outside set up, the gallows fixed slot is connected with the gallows fixed disk, and the gallows fixed disk has connected gradually calibrated scale and knob along fuselage width direction for the projection angle of adjustment projector. Fuselage 11, including the tooth's socket 1321 of inside setting, in the installation, assemble projection subassembly 20 and radiator unit 30 earlier on mainboard 40, then the mainboard passes through the tooth's socket cooperation with the fuselage, has convenient location, convenient to detach's characteristics. The main board 40 is provided with the projection assembly 20 and the heat dissipation assembly 30, the projection assembly is connected with the heat dissipation assembly, and the heat dissipation assembly is used for dissipating heat of the projection assembly. The projection assembly comprises a focusing unit 21, a laser chip 22, a driving PCB 23, a driving PCB, a laser chip and a focusing unit, wherein the driving PCB, the laser chip and the focusing unit are electrically connected in sequence, the driving PCB is used for driving the laser chip, the laser chip transmits an image signal to the focusing unit, and the image signal is projected to a clear projection area in a proper size after being focused. The focus unit 21 includes a lens 211, a lens focus gear 212 provided at a front end of the lens, and a focus motor 213 connected to the lens focus gear. The heat dissipation assembly comprises an air cooling heat dissipation assembly 34, a die casting heat dissipation assembly (fin cooling fin) 35, a water cooling

heat dissipation assembly

31, 32 and 33, the die casting heat dissipation assembly is connected with a main board, the air cooling heat dissipation assembly is arranged above a driving PCB, the water cooling heat dissipation assembly is connected with a laser chip, the die casting heat dissipation assembly is used for enabling the main board to be in contact with and dissipate heat to a space, the air cooling heat dissipation assembly is used for blowing cold to drive the PCB, and the water cooling heat dissipation assembly is used for dissipating heat of the laser chip. Air cooling radiator unit 34, including fan fixed plate, pillar, fan backup pad, flywheel radiator fan, install the drive PCB board on the fan fixed plate, and be equipped with the pillar, flywheel radiator fan passes through the fan backup pad and is installed in the fan fixed plate with the pillar connection, and the fan fixed plate is used for installing PCB board and pillar, and the pillar is used for supporting fan backup pad and flywheel radiator fan. The die-cast heat dissipating component (fin heat sink) 35 includes a fin heat dissipating plate connected to the main board. The water-cooling heat dissipation assembly comprises a water-cooling suction fan 33, a water discharge heat exchange box 313, a support column, a water discharge fixing plate, a machine body heat dissipation cover, a water-cooling water pipe 312, a water pump 32, a heat dissipation coil pipe 311, wherein the water discharge heat exchange box is arranged in front of the water-cooling suction fan and is connected with the machine body heat dissipation cover through the support column and the water discharge fixing plate, the machine body heat dissipation cover is connected with the machine body, a waterproof rubber ring is further arranged between the machine body heat dissipation cover and the machine body heat dissipation cover for enhancing sealing, the heat dissipation coil pipe is in contact with a laser chip and transfers heat to water through the water-. Water drainage heat exchange box, including water inlet portion, water conservancy diversion portion, the portion of returning the water, water inlet portion, water conservancy diversion portion, the portion of returning the water connect gradually, and

grid structure

3131, 3132 are set to the water conservancy diversion portion, and grid water conservancy diversion portion is favorable to increasing heat transfer area, heat dissipation that can be better.

The present invention has been described in terms of embodiments, but not limitations, and other variations of the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be included within the scope of the present invention as defined in the following claims, in view of the description of the present invention.

Claims

1. A projector, characterized in that: comprises a shell (10), a projection element (20) and a heat dissipation component (30), wherein the projection element (20) is arranged in the shell (10);

the heat dissipation assembly (30) comprises a circulation unit (31) for flowing of a cooling medium, and the circulation unit consists of a heat receiving and exchanging part (311), a connecting pipeline (312) and a heat discharging and exchanging part (313) which are connected in sequence and used for exchanging heat of the projection element (20);

the heat dissipation assembly (30) further comprises a circulating power device (32) connected with the circulating unit and a wind power device (33) matched with the circulating unit for heat dissipation;

the heat removal and exchange part (313) and the wind power device (33) are arranged in the front and back along the air flow direction;

during heat dissipation, the heat of the heat receiving and exchanging part (311) is transferred to the heat exhaust and exchanging part (313) through the connecting pipeline (312), and the heat of the heat exhaust and exchanging part (313) can be directly and efficiently exhausted to the external environment through the air exhaust and wind power device (33).

2. The projector according to claim 1, wherein: the heat exhaust exchange portion (313) includes a porous heat exhaust structure (3131) for increasing a heat exchange area.

3. The projector according to claim 2, wherein: the porous heat-removal structure (3131) includes a grill hole (3132) penetrating in an air flow direction.

4. The projector according to claim 3, wherein: the grating holes (3132) are arranged in a staggered and spaced mode.

5. The projector according to claim 1, wherein: the projection of the connecting pipe (312) along the air flow direction is covered by the wind generating surface of the wind power device (33).

6. The projector according to claim 1, wherein: the heat dissipation assembly (30) further comprises an air cooling heat dissipation assembly (34) and/or a fin heat dissipation assembly (35) matched with the projection element (20).

7. The projector according to claim 1, wherein: the projector further comprises a mounting main board (40), and the projection element (20) and the heat dissipation component (30) are integrally mounted on the mounting main board (40).

8. The projector according to claim 1, wherein: the shell (10) comprises a body shell (11) and a cover shell (12) connected with the body shell (11), the body shell (11) is connected with an installation main board (40) through a pre-installation structure (13), and the pre-installation structure (13) comprises a pre-installation groove (131) and a pre-assembly (132) which are matched with each other.

9. The projector according to claim 8, wherein: the pre-assembly slot (131) is composed of a plurality of parallel arranged tooth slots (1321), and the pre-assembly (132) comprises convex teeth (1322) matched with the tooth slots (1321).

10. The projector according to claim 8, wherein: and a sealing rubber ring (14) is arranged at the joint of the shell (10) and the cover sealing shell (12).