CN214278610U

CN214278610U - Light source heat radiation structure of projector

Info

Publication number: CN214278610U
Application number: CN202120047883.7U
Authority: CN
Inventors: 李达明
Original assignee: Shenzhen Siying Technology Co ltd
Current assignee: Shenzhen Siying Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-09-24
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a light source heat radiation structure of projector relates to projector equipment technical field, which comprises a housin, the inside bottom mounting of casing is provided with heat radiation fins, the inside fixed first fan that is provided with in one side that is located heat radiation fins of casing, heat radiation fins top one side is located the inside fixed second fan that is provided with of casing, the casing both sides are provided with the first ventilation hole with second fan matched with, the bottom of casing both sides is provided with the second ventilation hole with first fan and heat radiation fins matched with. The utility model discloses outside the LED light source passes through heat radiation fins conduction heat dissipation, there is the air-cooled heat dissipation of second fan in LED light source one side design in addition to and be provided with first fan in one side of heat radiation fins, and there are first ventilation hole and second ventilation hole in the both sides design of LED light source simultaneously, and the LED light source can be dispelled the heat through heat radiation fins conduction heat dissipation and air-cooled heat dissipation dual mode, and radiating effect obtains promoting.

Description

Light source heat radiation structure of projector

Technical Field

The utility model relates to a projector equipment technical field specifically is a light source heat radiation structure of projector.

Background

A projector is a display device for generating images anytime and anywhere. Particularly, a small projector, which is a representative of a device with high integration level, has the characteristics of small volume, high spatial integration level, and high power consumption, and meanwhile, with the improvement of technology, new requirements on the effect, volume, and the like of the projector are made. The high integration of devices such as chip sets and the like and the limitation of equipment volume pose high challenges to equipment heat dissipation.

At present, most of heat dissipation is that heat dissipation fins are designed at the lower part of an LED light source for heat dissipation, and then a fan is designed for blowing air to dissipate heat of the heat dissipation fins, so that the heat dissipation effect of the heat dissipation mode after long-time use is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem of poor heat dissipation effect of a light source of a projector in the prior art, a light source heat dissipation structure of the projector is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a light source heat radiation structure of projector, includes the casing, the inside bottom mounting of casing is provided with heat radiation fins, the inside fixed first fan that is provided with in one side that is located heat radiation fins of casing, heat radiation fins top one side is located the inside fixed second fan that is provided with of casing, the casing both sides are provided with the first ventilation hole with second fan matched with, the bottom of casing both sides is provided with the second ventilation hole with first fan and heat radiation fins matched with, the central point at heat radiation fins top puts the department and is provided with the LED light source, the inside LED light source top that is located of casing and the light section of thick bamboo with LED light source matched with.

Preferably, the inside top that is located a light section of thick bamboo of casing is provided with back fresnel lens, the inside back fresnel lens top that is located of casing is provided with the TFT screen, the inside front fresnel lens that is located TFT screen top fixed being provided with of casing, and the inside both sides of casing all be provided with back fresnel lens and TFT screen matched with mounting groove.

Preferably, a focusing lens is arranged in the middle of the top end inside the shell, and a light guide sheet matched with the focusing lens is obliquely arranged on the outer side of the shell.

Preferably, the middle positions of the two sides of the front Fresnel lens are fixedly provided with rotating shafts rotatably connected with the shell, and the two sides inside the shell are fixedly provided with limiting movable buckles matched with the front Fresnel lens.

Preferably, a light tube mounting rack matched with the light tube is fixedly arranged at one end of the interior of the shell above the heat dissipation fins, and the light tube mounting rack is connected with the light tube in a clamping manner.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses outside the LED light source passes through heat radiation fins conduction heat dissipation, there is the air-cooled heat dissipation of second fan in LED light source one side design in addition to and be provided with first fan in one side of heat radiation fins, and there are first ventilation hole and second ventilation hole in the both sides design of LED light source simultaneously, and the LED light source can be dispelled the heat through heat radiation fins conduction heat dissipation and air-cooled heat dissipation dual mode, and radiating effect obtains promoting.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a schematic structural view of a first viewing angle of the present invention;

fig. 3 is a schematic structural diagram of a second viewing angle of the present invention.

In the figure: 1. a housing; 2. heat dissipation fins; 3. a first fan; 4. a second fan; 5. an LED light source; 6. a light cylinder; 7. a rear Fresnel lens; 8. a TFT screen; 9. a front Fresnel lens; 10. a light guide sheet; 11. a light cylinder mounting rack; 12. a first vent hole; 13. limiting and moving the buckle; 14. a focus lens; 15. a second vent hole; 16. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate 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," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a light source heat dissipation structure of a projector includes a housing 1, a heat dissipation fin 2 is fixedly disposed at a bottom end inside the housing 1, a first fan 3 is fixedly disposed at one side of the heat dissipation fin 2 inside the housing 1, a second fan 4 is fixedly disposed at one side of a top of the heat dissipation fin 2 inside the housing 1, first ventilation holes 12 matched with the second fan 4 are disposed at two sides of the housing 1, second ventilation holes 15 matched with the first fan 3 and the heat dissipation fin 2 are disposed at bottoms of two sides of the housing 1, an LED light source 5 is disposed at a center position of the top of the heat dissipation fin 2, and a light tube 6 located above the LED light source 5 and matched with the LED light source 5 inside the housing 1.

The utility model discloses outside LED light source 5 through heat radiation fins 2 conduction heat dissipation, there is the 4 air-cooled heat dissipations of second fan in the design of LED light source 5 one side in addition to and be provided with first fan 3 in one side of heat radiation fins 2, and design has first ventilation hole 12 and second ventilation hole 15 in LED light source 5's both sides simultaneously, and LED light source 5 can be dispelled the heat through heat radiation fins 2 conduction heat dissipation and air-cooled heat dissipation dual mode, and radiating effect is promoted.

Please refer to fig. 1, fig. 2 and fig. 3 heavily, the inside top that is located light section of thick bamboo 6 of casing 1 is provided with back fresnel lens 7, and the inside back fresnel lens 7 that is located of casing 1 is provided with TFT screen 8, and the inside TFT screen 8 top that is located of casing 1 is fixed and is provided with preceding fresnel lens 9, and the inside both sides of casing 1 all are provided with the mounting groove with back fresnel lens 7 and TFT screen 8 matched with, the utility model discloses LED light source 5 produces light, and light passes through back fresnel lens 7 and converges, sees through TFT screen 8, and the picture and text information that produces TFT screen 8 forms images through preceding fresnel lens 9, is guided into focusing lens 14 by light guide 10 again, and then the projection is on the screen.

Please refer to fig. 1, fig. 2 and fig. 3, the middle position of the top end inside the housing 1 is provided with a focusing lens 14, the outer side of the housing 1 is inclined and provided with a light guide sheet 10 matched with the focusing lens 14, the utility model discloses the LED light source 5 generates light, the light converges through the rear fresnel lens 7, penetrates the TFT screen 8, images the graphic and text information generated by the TFT screen 8 through the front fresnel lens 9, and then the light is guided into the focusing lens 14 by the light guide sheet 10, and then projected on the screen.

Please refer to fig. 1, fig. 2 and fig. 3, the middle position of the two sides of the front fresnel lens 9 is provided with a rotating shaft 16 connected with the rotation of the housing 1, and the two sides of the inside of the housing 1 are provided with a front fresnel lens 9 matched limit moving buckle 13, the utility model discloses a setting the front fresnel lens 9 can rotate through the rotating shaft 16, more convenient imaging, setting the limit moving buckle 13, conveniently carrying out limit fixing on the front fresnel lens 9.

Please refer to fig. 1, one end of the inside of the casing 1 is located above the heat dissipation fins 2 and is fixedly provided with a light tube mounting bracket 11 matched with the light tube 6, and the light tube mounting bracket 11 is connected with the light tube 6 by a snap fit.

The working principle is as follows: when in use, the power supply is switched on, the LED light source 5 generates light rays, the light rays are converged by the rear Fresnel lens 7, the image information generated by the TFT screen 8 is imaged by the front Fresnel lens 9 through the TFT screen 8, and then the light is guided into the focusing lens 14 by the light guide sheet 10, further projected on the screen, the utility model can not only radiate heat by the LED light source 5 through the heat radiation fins 2, in addition, a second fan 4 is designed on one side of the LED light source 5 for air cooling and heat dissipation, a first fan 3 is arranged on one side of the heat dissipation fins 2, the first fan conducts heat and dissipates heat through the heat dissipation fins 2, the second fan directly blows air to dissipate heat through air, the heat dissipation efficiency of the LED light source 5 is improved, meanwhile, the first ventilation hole 12 and the second ventilation hole 15 are designed on the two sides of the LED light source 5, the LED light source 5 can radiate heat in two modes of heat conduction and air cooling through the heat radiating fins 2, and the heat radiating effect is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a light source heat radiation structure of projector, includes casing (1), its characterized in that: the LED lamp is characterized in that the bottom end inside the shell (1) is fixedly provided with heat dissipation fins (2), one side, located on the heat dissipation fins (2), inside the shell (1) is fixedly provided with first fans (3), one side of the top of the heat dissipation fins (2) is located on the inside of the shell (1) and fixedly provided with second fans (4), two sides of the shell (1) are provided with first ventilation holes (12) matched with the second fans (4), the bottom of two sides of the shell (1) is provided with second ventilation holes (15) matched with the first fans (3) and the heat dissipation fins (2), the central position of the top of the heat dissipation fins (2) is provided with an LED light source (5), and the inside of the shell (1) is located above the LED light source (5) and is provided with a light tube (6) matched with the LED light source (5).

2. The heat dissipation structure for a light source of a projector according to claim 1, wherein: casing (1) inside top that is located light section of thick bamboo (6) is provided with back fresnel lens (7), casing (1) inside is located back fresnel lens (7) top and is provided with TFT screen (8), casing (1) inside is located fixed preceding fresnel lens (9) that are provided with in TFT screen (8) top, and casing (1) inside both sides all be provided with back fresnel lens (7) and TFT screen (8) matched with mounting groove.

3. The heat dissipation structure for a light source of a projector according to claim 1, wherein: the focusing device is characterized in that a focusing lens (14) is arranged in the middle of the top end in the shell (1), and a light guide sheet (10) matched with the focusing lens (14) is obliquely arranged on the outer side of the shell (1).

4. The heat dissipation structure for a light source of a projector according to claim 2, wherein: the middle positions of the two sides of the front Fresnel lens (9) are fixedly provided with rotating shafts (16) which are rotatably connected with the shell (1), and the two sides inside the shell (1) are fixedly provided with limiting moving buckles (13) matched with the front Fresnel lens (9).

5. The heat dissipation structure for a light source of a projector according to claim 1, wherein: the light tube mounting rack (11) matched with the light tube (6) is fixedly arranged at one end of the inner portion of the shell (1) above the heat dissipation fins (2), and the light tube mounting rack (11) is connected with the light tube (6) in a clamping mode.