CN217386120U

CN217386120U - High-efficient heat abstractor and projector

Info

Publication number: CN217386120U
Application number: CN202221401939.5U
Authority: CN
Inventors: 陈灵; 潘亚婷
Original assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Current assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-09-06
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a high-efficiency heat dissipation device, which comprises a fan, a metal plate, a heat pipe, a plurality of fins and a heat dissipation air duct arranged around an LCD light valve, wherein an LED light source is attached to the front surface of the metal plate, the plurality of fins are arranged side by side at equal intervals, and the plurality of fins are attached to the front surface of the metal plate; one end of the heat pipe is attached to the back face of the metal plate, and the other end of the heat pipe is attached to the plurality of fins. The utility model also provides a projector, include high-efficient heat abstractor. The utility model discloses an effective quick heat dissipation of LED light source and LCD light valve has realized high-efficient illumination simultaneously, for the higher luminance of projector output, has created positive condition, is showing the overall dimension who has dwindled the projector moreover, practices thrift the unnecessary structure space.

Description

High-efficient heat abstractor and projector

Technical Field

The utility model relates to a projection technology field especially relates to a high-efficient heat abstractor and projector.

Background

In the projector working process, a part of light can not be transmitted through the LCD light valve to be converted into heat, meanwhile, the LED light source emits light, and a large part of input electric energy is converted into heat. How to minimize the size of the projector under the condition of ensuring the heat dissipation condition is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough with regard to overcoming prior art, provides a high-efficient heat abstractor and projector, the utility model discloses an effective quick heat dissipation of LED light source and LCD light valve has realized high-efficient illumination simultaneously, for the higher luminance of projector output, has created positive condition, is showing the overall dimension who has dwindled the projector moreover, practices thrift unnecessary structure space.

In order to achieve the above object, the present invention provides a high efficiency heat dissipation device, which is applied to a projector, the projector has an LED light source and an LCD light valve, the high efficiency heat dissipation device includes a fan, a metal plate, a heat pipe, a plurality of fins, and a heat dissipation duct disposed around the LCD light valve, the LED light source is attached to the front surface of the metal plate, the plurality of fins are disposed side by side at equal intervals, and the plurality of fins are attached to the front surface of the metal plate; one end of the heat pipe is attached to the back surface of the metal plate, and the other end of the heat pipe is attached to the plurality of fins;

the air inlet of the heat dissipation air duct is opposite to the fan, and the air outlet of the heat dissipation air duct is opposite to the plurality of fins; the fan blows air to the air inlet of the heat dissipation air duct, and blows heat generated by the LCD light valve to the plurality of fins through the air outlet of the heat dissipation air duct.

Furthermore, an arc diversion section is arranged on the fin, the air flow blown out by the fan is blown to the fin by the air outlet of the heat dissipation air duct, and the air flow turns and is blown out in the direction deviating from the LED light source after passing through the arc diversion section.

Further, the fin comprises a sheet; one side of the sheet body close to the LED light source is a first side edge, one side of the sheet body connected with the metal plate is a second side edge, and air guide plates vertically connected with the sheet body are arranged on the first side edge and the second side edge;

the first side edge and the second side edge, and the air deflector on the first side edge and the air deflector on the second side edge are in arc transition connection to form an arc diversion section; the fins are stacked side by side.

Furthermore, a wind shield is arranged at the air inlet section of the third side edge parallel to the first side edge, the wind shield is parallel to the wind deflector on the first side edge, and a linear flow channel is formed between the wind deflector and the wind shield.

Preferably, the number of the heat pipes is one or more.

Preferably, a hole is formed in the middle of the metal plate, and the other end of the heat pipe penetrates through the hole and then is bent and attached to the side faces, close to the LED light sources, of the fins.

Preferably, the number of the fans is one or more, and the fans are arranged side by side.

The utility model also provides a projector, include high-efficient heat abstractor, still include the ray apparatus casing to and LED light source, condensing lens, spotlight collimating lens, insulating glass, LCD light valve, field lens, formation of image speculum and the projecting lens that sets gradually according to light advancing direction, be equipped with light source installing port and camera lens installing port on the ray apparatus casing, LED light source and projecting lens install respectively in light source installing port and camera lens installing port department, LCD light valve, condensing lens, spotlight collimating lens, insulating glass, field lens, formation of image speculum and fan install in the ray apparatus casing; the fins, the metal plate and the heat pipe are positioned outside the optical machine shell;

and heat dissipation air ducts are formed between the condensing collimating lens and the heat insulation glass, between the heat insulation glass and the LCD light valve and between the LCD light valve and the field lens.

The utility model has the advantages that:

1. the utility model discloses the heat that the LED light source produced transmits to the heat pipe fast through the metal sheet on, on the fin to many through the heat pipe transmission, the air intake of fan to the heat dissipation wind channel is bloied simultaneously, blow to the multi-disc fin through the air outlet in heat dissipation wind channel with the heat that the LCD light valve produced, so that the heat on the multi-disc fin spreads to in the air fast, the effective quick heat dissipation of LCD light valve and LED light source has been realized, the normal work of LCD light valve and LED light source has effectively been guaranteed, the life of extension LCD light valve and LED light source, for the higher luminance of projector output, positive conditions have been created.

2. The utility model discloses multi-disc fin and LED light source are installed in the front of metal sheet side by side, and multi-disc fin and LED light source have adopted a brand-new mounting means, compare in the current mounting means of laminating radiator axial stack ground on the LED light source, can show the overall dimension who reduces the projector, practice thrift unnecessary structure space.

3. The utility model discloses establish circular arc water conservancy diversion section on the fin for change the flow direction of distinguished and admirable, so that distinguished and admirable towards the direction that deviates from the LED light source blows off, is favorable to hot-blast diffusion to the middle of the air fast.

4. The utility model discloses between spotlight collimating lens and the insulating glass, between insulating glass and the LCD light valve, form the heat dissipation wind channel between LCD light valve and the field lens, heat dissipation wind channel area is big, has effectively improved the radiating efficiency of LCD light valve.

5. The utility model discloses under condenser and spotlight collimating lens's effect, realized high-efficient illumination, for the higher luminance of projector output, created positive condition.

Drawings

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

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the present invention, partially exploded;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a perspective view of the assembly of the heat multi-piece fin, heat pipe and metal plate of the present invention;

FIG. 5 is a perspective view of the assembly of the heat multi-piece fin, heat pipe and metal plate of the present invention;

fig. 6 is a perspective view of the fin of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

as shown in fig. 1-3, the high-efficiency heat dissipation device provided in this embodiment is applied to a projector, the projector has an LED light source 6 and an LCD light valve 10, the high-efficiency heat dissipation device includes a fan 1, a metal plate 4, a heat pipe 5, a plurality of fins 3, and a heat dissipation air duct 2 disposed around the LCD light valve 10, the LED light source 6 is attached to the front surface of the metal plate 4, the plurality of fins 3 are disposed side by side at equal intervals, and the plurality of fins 3 are attached to the front surface of the metal plate 4; one end of the heat pipe 5 is attached to the back surface of the metal plate 4, and the other end of the heat pipe 5 is attached to the plurality of fins 3; the air inlet of the heat dissipation air duct 2 is opposite to the fan 1, and the air outlet of the heat dissipation air duct 2 is opposite to the plurality of fins 3; the fan 1 blows air to the air inlet of the heat dissipation air duct 2, and blows heat generated by the LCD light valve 10 to the plurality of fins 3 through the air outlet of the heat dissipation air duct 2.

In this embodiment, heat generated by the LED light source 6 is quickly transferred to the heat pipe 5 through the metal plate 4, and is transferred to the multiple fins 3 through the heat pipe 5, and meanwhile, the fan 1 blows air to the air inlet of the heat dissipation air duct 2, and the heat generated by the LCD light valve 10 is blown to the multiple fins 3 through the air outlet of the heat dissipation air duct 2, so that the heat on the multiple fins 3 is quickly diffused into the air (the direction shown by the arrow in fig. 3 is the flow direction of the wind), thereby realizing effective and quick heat dissipation of the LCD light valve 10 and the LED light source 6, effectively ensuring the normal operation of the LCD light valve 10 and the LED light source 6, prolonging the service lives of the LCD light valve 10 and the LED light source 6, and creating a positive condition for outputting higher brightness by the projector.

In this embodiment, the LCD light valve 10 and the LED light source 6 are cooled by the same fan 1, so as to save energy consumption.

In this embodiment, the plurality of fins 3 and the LED light sources 6 are mounted on the front surface of the metal plate 4 side by side, and the plurality of fins 3 and the LED light sources 6 adopt a brand new mounting method, so that the overall size of the projector can be significantly reduced and unnecessary structural space can be saved compared with the existing mounting method in which the heat sink is attached to the LED light sources 6 in an axially superposed manner.

In this embodiment, the number of the heat pipes 5 is preferably one or more. In fig. 2, the number of the heat pipes 5 is two, which is not particularly limited.

In this embodiment, preferably, a hole is formed in the middle of the metal plate 4, and the other end of the heat pipe 5 passes through the hole and then is bent and attached to the side surfaces of the fins 3 close to the LED light source 6. The structure design is compact, and the volume of the projector is effectively reduced.

In this embodiment, preferably, the number of the fans 1 is one or more, wherein a plurality of fans 1 are arranged side by side. Fig. 1 shows two fans 1. Can blow out radiating channel 2 with the heat that LCD light valve 10 produced fast through two fans 1, realize the quick heat dissipation of LCD light valve 10, can blow off the heat of multi-disc fin 3 to the air in the middle of fast simultaneously, improve the radiating efficiency.

As shown in fig. 1, an arc flow guide section 30 is arranged on the fin 3, the air flow blown out by the fan 1 is blown to the fin 3 from the air outlet of the heat dissipation air duct 2, and the air flow turns and is blown out in a direction departing from the LED light source 6 after passing through the arc flow guide section 30. Under the action of the arc diversion section 30, the flow direction of the wind flow is changed, so that the wind flow is blown out in the direction away from the LED light source 6, and the hot wind is favorably and rapidly diffused into the air.

As shown in fig. 4 to 6, the fin 3 of the present embodiment includes a sheet body 301; one side of the sheet body 301 close to the LED light source 6 is a first side, the other side connected with the metal plate 4 is a second side, and air guide plates 302 vertically connected with the sheet body 301 are arranged on the first side and the second side;

the first side edge and the second side edge, and the air deflector 302 on the first side edge and the air deflector 302 on the second side edge are in arc transition connection to form an arc flow guide section 30; the fins 3 are stacked side by side, that is, a sheet body 301 of one fin 3 between two adjacent fins 3 is attached to an air deflector 302 of the other fin 3, an air duct is formed between two adjacent fins 3, and air flow guiding is realized under the action of the air deflector 302.

Preferably, a wind deflector 303 is arranged at the air inlet section on the third side parallel to the first side, the wind deflector 303 is parallel to the wind deflector 302 on the first side, and a linear flow channel is formed between the wind deflector 302 and the wind deflector 303. The hot air blown out from the heat dissipation air duct 2 is intensively blown into the air duct formed by the plurality of fins 3 and then is intensively blown out, so that the heat dissipation efficiency is improved.

Example two:

as shown in fig. 1-3, the projector provided in this embodiment includes the first embodiment of the efficient heat dissipation device, and further includes an optical housing 14, and an LED light source 6, a condenser 7, a condensing collimating lens 8, heat-insulating glass, an LCD light valve 10, a field lens 11, an imaging mirror 12, and a projection lens 13, which are sequentially arranged in the light traveling direction, where the optical housing 14 is provided with a light source mounting opening and a lens mounting opening, the LED light source 6 and the projection lens 13 are respectively mounted at the light source mounting opening and the lens mounting opening, and the LCD light valve 10, the condenser 7, the condensing collimating lens 8, the heat-insulating glass 9, the field lens 11, the imaging mirror 12, and the fan 1 are mounted in the optical housing 14.

And a heat dissipation air duct 2 is formed between the condensing collimating lens 8 and the heat insulation glass 9, between the heat insulation glass 9 and the LCD light valve 10, and between the LCD light valve 10 and the field lens 11. The area of the heat dissipation air duct 2 is large, and the heat dissipation efficiency of the LCD light valve 10 is effectively improved.

In the embodiment, under the action of the condenser lens 7 and the condenser collimating lens 8, high-efficiency illumination is realized, and positive conditions are created for outputting higher brightness by the projector.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high-efficiency heat dissipation device is applied to a projector, the projector is provided with an LED light source (6) and an LCD light valve (10), and the high-efficiency heat dissipation device is characterized by comprising a fan (1), a metal plate (4), a heat pipe (5), a plurality of fins (3) and a heat dissipation air duct (2) arranged around the LCD light valve (10), wherein the LED light source (6) is attached to the front surface of the metal plate (4), the plurality of fins (3) are arranged side by side at equal intervals, and the plurality of fins (3) are attached to the front surface of the metal plate (4); one end of the heat pipe (5) is attached to the back surface of the metal plate (4), and the other end of the heat pipe (5) is attached to the plurality of fins (3);

the air inlet of the heat dissipation air duct (2) is opposite to the fan (1), and the air outlet of the heat dissipation air duct (2) is opposite to the plurality of fins (3); the fan (1) blows air to the air inlet of the heat dissipation air duct (2), and blows heat generated by the LCD light valve (10) to the plurality of fins (3) through the air outlet of the heat dissipation air duct (2).

2. The efficient heat dissipation device as claimed in claim 1, wherein an arc diversion section (30) is provided on the fin (3), and the air flow blown out by the fan (1) is blown to the fin (3) from the air outlet of the heat dissipation air duct (2), and the air flow turns and is blown out in a direction away from the LED light source (6) after passing through the arc diversion section (30).

3. A high efficiency heat sink according to claim 2, wherein the fins (3) comprise a sheet (301); one side of the sheet body (301), which is close to the LED light source (6), is a first side, the other side of the sheet body, which is connected with the metal plate (4), is a second side, and air guide plates (302) which are vertically connected with the sheet body (301) are arranged on the first side and the second side;

the first side edge and the second side edge, and the air deflector (302) on the first side edge and the air deflector (302) on the second side edge are in arc transition connection to form an arc diversion section (30); the fins (3) are arranged in a side-by-side stacked manner.

4. The efficient heat dissipation device according to claim 3, wherein a wind shielding plate (303) is disposed at the wind inlet section on the third side parallel to the first side, the wind shielding plate (303) is parallel to the wind guiding plate (302) on the first side, and a linear flow channel is formed between the wind guiding plate (302) and the wind shielding plate (303).

5. The efficient heat dissipation device as claimed in claim 1, wherein the number of the heat pipes (5) is one or more.

6. The efficient heat dissipation device as claimed in claim 1, wherein a hole is formed in the middle of the metal plate (4), and the other end of the heat pipe (5) passes through the hole and then is bent to fit the side of the fins (3) close to the LED light source (6).

7. The efficient heat dissipation device as claimed in claim 1, wherein the number of the fans (1) is one or more, and a plurality of fans (1) are arranged side by side.

8. A projector, which is characterized by comprising the efficient heat dissipation device according to any one of claims 1 to 7, and further comprising an optical machine housing (14), and an LED light source (6), a condenser (7), a condensing collimating lens (8), a heat insulation glass (9), an LCD light valve (10), a field lens (11), an imaging reflector (12), and a projection lens (13) which are sequentially arranged in a light traveling direction, wherein the optical machine housing (14) is provided with a light source mounting port and a lens mounting port, the LED light source (6) and the projection lens (13) are respectively mounted at the light source mounting port and the lens mounting port, and the condenser (7), the condensing collimating lens (8), the heat insulation glass (9), the LCD light valve (10), the field lens (11), the imaging reflector (12), and a fan (1) are mounted in the optical machine housing (14); the fins (3), the metal plate (4) and the heat pipe (5) are positioned outside the optical machine shell (14);

and a heat dissipation air duct (2) is formed between the condensing collimating lens (8) and the heat insulation glass (9), between the heat insulation glass (9) and the LCD light valve (10), and between the LCD light valve (10) and the field lens (11).