CN101464617A

CN101464617A - Projection apparatus with cooling structure

Info

Publication number: CN101464617A
Application number: CNA200710125264XA
Authority: CN
Inventors: 李旭; 邓根平; 陈俊吉
Original assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Current assignee: Hong Jun Precision Industry Co ltd; Fuzhun Precision Industry Shenzhen Co Ltd
Priority date: 2007-12-19
Filing date: 2007-12-19
Publication date: 2009-06-24
Anticipated expiration: 2027-12-19
Also published as: CN101464617B

Abstract

A projector provided with a radiating structure comprises a crate, a light source positioned in the crate, and a radiator combined with the light source; and the radiator comprises a heat pipe close to the light source and a fin group far away from the light source and connected with the heat pipe. Heat produced by the light source is transmitted to the fin group through the heat pipe and then dissipated out; and the heat dissipation is rapid.

Description

Projector with radiator structure

Technical field

The present invention relates to a kind of projector, outstanding reference and a kind of projector with radiator structure.

Background technology

Along with the progress of shadow casting technique, can export high resolving power and big picture digital projector application more and more widely.For making projector reach the requirement of high brightness and sharpness, usually use the light source of powerful bulb module as projector.Yet when working, high-power bulb module produces a large amount of heat.And, under the trend that projector weight constantly descends, profile is day by day small and exquisite, cause the projector temperature inside more and more higher along with the progressively expansion of portable, super portable projection instrument demand.Because projector belongs to high-grade, precision and advanced optical, mechanical and electronic integration product, its inner components and parts are very responsive to temperature, and as these heats of untimely discharge, the work efficiency of projector will reduce; And work under this environment for a long time, also can shorten greatly the serviceable life of projector.Therefore, projector need be provided with a radiator structure its internal components is dispelled the heat.Yet under the projector trend toward miniaturization, projector all has higher requirements to the aspects such as volume, layout and heat-sinking capability of radiator structure.

Summary of the invention

In view of this, be necessary to provide a kind of projector in fact with radiator structure with good heat radiating ability.

A kind of projector with radiator structure comprises a cabinet, is positioned at the light source of this cabinet and the heating radiator that combines with this light source, and this heating radiator comprises the fins group that a heat pipe that amplexiforms with described light source and combines with this heat pipe away from this light source.

Compared with prior art, the heat of above-mentioned light source generation is passed to fins group by heat pipe and distributes rapid heat dissipation.

With reference to the accompanying drawings, the invention will be further described in conjunction with concrete embodiment.

Description of drawings

Fig. 1 is the three-dimensional combination figure that the present invention has the projector of radiator structure.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 has first heating radiator of projector of radiator structure and the three-dimensional combination figure of light source among Fig. 1.

Fig. 4 is the three-dimensional exploded view of first heating radiator and light source among Fig. 3.

Have second heating radiator of projector of radiator structure and the three-dimensional combination figure of light source among Fig. 5 Fig. 1.

Embodiment

See also Fig. 1 and Fig. 2, the projector that the present invention has radiator structure comprises a cabinet 10, places two light sources 20 in this cabinet 10 and the radiator structure 30 that is positioned at this cabinet 10 and is connected with this two light source 20.

Please consult Fig. 3 simultaneously, above-mentioned cabinet 10 is a square casing, and above-mentioned two light sources 20 are positioned at a sidepiece of this cabinet 10.In the present embodiment, each light source 20 is a light emitting diode bulb, and it comprises a circuit board 211 and is installed on light emitting diode 210 on this circuit board 211.The circuit board 211 of this two light source 20 is vertical mutually in this cabinet 10, and the light direction of this two light emitting diode 210 is vertical.

Be provided with one first condenser 110 between above-mentioned two light sources 20, the light that this two light source 20 sends is arranged at the spectroscope 120 of these condenser 110 1 sides by these condenser 110 back directives.Arrive the camera lens 150 that is embedded on the cabinet 10 through the light behind the spectroscope 120 by a liquid crystal board 130 and one second condenser, 140 backs, thereby be projeced into the fluorescent screen imaging.One liquid crystal control circuit 131 is positioned at the other side of this cabinet 10, in order to control this liquid crystal board 130.

Above-mentioned radiator structure 30 comprises a fan 31, first heating radiator 32 that is connected with a light source 20 wherein and second heating radiator 35 (seeing also Fig. 5) that is connected with another light source 20.

One air port of said fans 31 corresponding above-mentioned cabinets 10 (figure do not show) is provided with and is positioned at the bottom of this cabinet 10.This two light source 20, first heating radiator 32 and second heating radiator 35 all are positioned at these fan 31 tops and air port that should fan 31 are provided with.

See also Fig. 3 and Fig. 4, above-mentioned first heating radiator 32 comprises one first heat pipe 320 and the fins group 330 that is connected with this first heat pipe 320.This first heat pipe 320 is roughly L-shaped, and it comprises one first endotherm section 321, roughly with vertical first heat release section 322 of this first endotherm section 321 and be connected this first endotherm section 321 and the arc linkage section 323 of first heat release section 322.This first endotherm section 321 is flat, and it has the first relative plane (not indicating) and second plane (not indicating).This first heat release section 322 roughly is cylindric.This linkage section 323 is flat.This first heating radiator 32 comprises that also a fixture 340 connects the circuit board 211 of this first endotherm section 321 and above-mentioned light source 20.This fixture 340 comprises two extensions 342 that a flat part 341 adheres on first plane of this first endotherm section 321, extends to light source 20 directions from these flat part 341 relative two edges.Each extension 342 is L-shaped, and a platform (not indicating) is formed on its top.This flat part 341 is suitable with these endotherm section 321 first and second interplanar distances to the distance of this platform.This two platform is positioned at the both sides of this endotherm section 321, and its end face flushes with second plane of this endotherm section 321.Fins group 330 comprises some fins 331 of mutual butt.This fins group 330 is provided with an open-work 333 that penetrates each fin 331.First heat release section 322 of this first heat pipe 320 is contained in the open-work 333 of this fins group 330.

The circuit board 211 in an above-mentioned wherein lamp source 20 is combined closely to second plane of the platform of above-mentioned fixture 340 extensions 342 and first heat pipe, 320 first endotherm sections 321.

See also Fig. 5, the structure of the structure of above-mentioned second heating radiator 35 and above-mentioned first heating radiator 32 is basic identical, the fins group 330 that it comprises one second heat pipe 350 and is bonded to these second heat pipe, 350 second heat release section 352, wherein the circuit board 211 of another light source 20 is combined closely to second endotherm section 351 and the fixture 340 of this second heat pipe 350.This second heat pipe 35 comprises that a linkage section 353 connects this second endotherm section 351 and second heat release section 352.This second heating radiator 35 and first heating radiator, 32 differences are that the linkage section 353 of this second heat pipe 35 is the cylindric of arc.

In the above-mentioned heat spreader structures 30, first heating radiator 32 is roughly L-shaped, and second heating radiator 35 is roughly L-shaped.This first heating radiator 32 and second heating radiator 35 staggered layout in above-mentioned cabinet 10, wherein, first heat release section 322 of these first heating radiator, 32 first heat pipes 320 and fins group 330 extend to second endotherm section 351 of second heating radiator, 35 second heat pipes 350 and the rear of the light source 20 that joins with this second heating radiator 35.The heat release section 351 of these second heating radiator, 35 second heat pipes 350 and fins group 330 extend to the rear that first heating radiator, 32 first endotherm sections 321 reach the light source 20 that joins with this first heating radiator 32.The turning of linkage section 323, the 353 corresponding above-mentioned cabinets 10 of first heat pipe 320, second heat pipe 350 is the arc of L shape and is positioned at this corner.

During work, above-mentioned light source 20 work are luminous, produce heat simultaneously, this heat absorbs by circuit board 211 first and second endotherm section 321,351 by first and second heat pipe 320,350, and then being passed to fins group 330 via linkage section 323,353 and first and second heat release section 322,352, this heat distributes under the effect of fan 31.

Compared with prior art, above-mentioned two light sources 20 are bonded to first heating radiator 32 and second heating radiator 35 of above-mentioned radiator structure 30 respectively, and the heat of its generation is passed to fins group 330 by first heat pipe 320 and second heat pipe 350 and distributes rapid heat dissipation.In addition, this first and

second heating radiator

32,35 is staggered layout and all L-shaped to corner that should cabinet 10 in cabinet 10, is convenient to layout, saves the space.

Claims

1. projector with radiator structure, comprise a cabinet, be positioned at the light source of this cabinet and the heating radiator that combines with this light source, it is characterized in that: described heating radiator comprises the fins group that a heat pipe that amplexiforms with described light source and combines with this heat pipe away from this light source.

2. the projector with radiator structure as claimed in claim 1 is characterized in that: also comprise another heating radiator, this heating radiator comprises the fins group that a heat pipe that amplexiforms with another light source and combines with this heat pipe away from this light source.

3. the projector with radiator structure as claimed in claim 2 is characterized in that: described second radiator is staggered layout in described cabinet.

4. the projector with radiator structure as claimed in claim 3 is characterized in that: wherein the fins group of a heating radiator is near the light source that amplexiforms with another heating radiator.

5. as each described projector in the claim 1 to 4 with radiator structure, it is characterized in that: described heat pipe comprises an endotherm section and the heat release section that combines with described fins group away from this endotherm section, this endotherm section have one with plane that should described light source applying.

6. the projector with radiator structure as claimed in claim 5 is characterized in that: described heat pipe comprises that one connects the linkage section of described endotherm section and heat release section.

7. the projector with radiator structure as claimed in claim 6 is characterized in that: described linkage section is curved, and this linkage section is positioned at the corner of described cabinet.

8. the projector with radiator structure as claimed in claim 6 is characterized in that: described heat pipe is L-shaped.

9. the projector with radiator structure as claimed in claim 6 is characterized in that: described radiator structure also comprises a fixture, and described heat pipe heat-absorbing section is folded between this fixture and the light source.

10. the projector with radiator structure as claimed in claim 9 is characterized in that: described fixture comprises a flat part of fitting with described endotherm section and extends and the extension of the described light source of fitting from this flat part.

11. the projector with radiator structure as claimed in claim 10 is characterized in that: described extension is L-shaped.

12. as each described projector with radiator structure in the claim 1 to 4, it is characterized in that: described radiator structure comprises that one provides the fan of convection current to described heat pipe, fins group and light source.

13. the projector with radiator structure as claimed in claim 12 is characterized in that: described fan is positioned at the same side of described heat pipe, fins group and light source.