CN214278607U

CN214278607U - Dustproof heat radiation structure of projector

Info

Publication number: CN214278607U
Application number: CN202120058641.8U
Authority: CN
Inventors: 李达明
Original assignee: Shenzhen Siying Technology Co ltd
Current assignee: Shenzhen Siying Technology Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-09-24
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a dustproof heat radiation structure of projector relates to projector technical field, comprising a main body, the fixed first mounting bracket that is provided with in inside one side of main part, the both sides of first mounting bracket one side are provided with rather than the matched with light section of thick bamboo, and are two sets of the fixed LED light source that is provided with in inside one side of light section of thick bamboo, inside back fresnel lens, TFT screen and the preceding fresnel lens of having set gradually from one side that is close to light section of thick bamboo of main part. The utility model discloses the inside back fresnel lens that has set gradually of main part, TFT screen and preceding fresnel lens, the radiator fan that is located back fresnel lens, TFT screen and preceding fresnel lens below is installed at the inside both ends of drain pan, and then radiator fan can blow into the heat dissipation air current to the clearance between back fresnel lens, TFT screen and the preceding fresnel lens, the heat can not gather at back fresnel lens like this, between TFT screen and the preceding fresnel lens, can keep the TFT screen to guarantee normal operating after long-time the use.

Description

Dustproof heat radiation structure of projector

Technical Field

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

Background

The projector is a display device for producing pictures at any time and any place, in particular to a small projector, which is a representative of equipment with high integration level and has the characteristics of small volume, high space integration level and high power consumption.

In the prior art, a projector only dissipates heat of an LED light source, although a TFT does not directly contact a light-emitting source, after the TFT is irradiated by a long-term light source, heat is gathered and cannot be effectively dissipated, a sensitive TFT board of an electronic component cannot normally operate easily, the requirement on the use environment of the projector is high, on one hand, high temperature is prevented, especially at the position of a TFT screen, and on the other hand, in the condition that air enters the projector, the display effect is greatly influenced by dust particles in the air, and the projector is required to have a good dustproof function under the condition of a good heat dissipation function.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that a projector in the prior art needs to have a good dustproof function while having high-efficiency heat dissipation capacity, a dustproof heat dissipation structure of the projector is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a dustproof heat dissipation structure of a projector comprises a main body, wherein a first mounting frame is fixedly arranged on one side inside the main body, light tubes matched with the first mounting frame are arranged on two sides of one side of the first mounting frame, an LED light source is fixedly arranged on one side inside two groups of the light tubes, a rear Fresnel lens, a TFT screen and a front Fresnel lens are sequentially arranged inside the main body from one side close to the light tubes, a reflector is obliquely arranged on one side of the front Fresnel lens inside the main body, a lens is fixedly arranged at one end of the reflector inside the main body, a bottom shell matched with the main body is arranged at the bottom of the main body, two groups of heat dissipation fans matched with the rear Fresnel lens, the TFT screen and the front Fresnel lens are arranged at two ends inside the bottom shell, a first dustproof mesh plate and a second dustproof mesh plate matched with the first dustproof mesh plate are respectively arranged at two sides and two ends of the bottom shell, the main part top is provided with rather than matched with top cap, the inside one side of top cap is provided with the third dirt otter board.

Preferably, one side of the inside both ends of main part that are located a light section of thick bamboo is fixed respectively be provided with back fresnel lens, TFT screen, preceding fresnel lens matched with second mounting bracket and third mounting bracket, and second mounting bracket and third mounting bracket inside be provided with back fresnel lens, TFT screen, preceding fresnel lens matched with mounting groove.

Preferably, a fixing frame matched with the two groups of light tubes is fixedly arranged on one side of the first mounting frame, and mounting holes matched with the two groups of light tubes are formed in the fixing frame.

Preferably, the position of the main body inside, which is located at one end of each of the two groups of light cylinders, is fixedly provided with a heat dissipation fin, and a rubber pad is fixedly arranged between the heat dissipation fin and the main body.

Preferably, the inside four corners department of main part all is fixed and is provided with the erection column, the four corners department of drain pan bottom all is provided with the first screw that runs through the drain pan and extend to the erection column inside, the four corners department at top cap top all is provided with the second screw that runs through the top cap and extend to the erection column inside.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses be provided with the drain pan in the bottom of main part, the inside back fresnel lens, TFT screen and preceding fresnel lens that have set gradually of main part, the inside both ends of drain pan are installed and are located the radiator fan of back fresnel lens, TFT screen and preceding fresnel lens below, and then radiator fan can blow the heat dissipation air current to the clearance between back fresnel lens, TFT screen and the preceding fresnel lens, and the heat can not gather between back fresnel lens, TFT screen and preceding fresnel lens like this, can keep the TFT screen to guarantee normal operating after long-time use;

2. the utility model discloses a can dismantle the first dustproof otter board and the dustproof otter board of second of connection respectively in the both sides and both ends of drain pan, the inside that external air can pass first dustproof otter board and the dustproof otter board of second and enter into the drain pan provides sufficient air supply to two sets of radiator fan, and the inside hot-air of main part can be discharged to the inside third dirt otter board that sets up of top cap, the installation can all be dismantled to first dustproof otter board, the dustproof otter board of second and third dirt otter board, convenient washing, the maintenance of being convenient for, and the extension practical life.

Drawings

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

fig. 2 is an exploded view of the interior of the present invention;

fig. 3 is a schematic structural view of a first viewing angle of the present invention;

fig. 4 is a schematic structural diagram of a second viewing angle of the present invention.

In the figure: 1. a main body; 2. a first mounting bracket; 3. a light cylinder; 4. an LED light source; 5. a second mounting bracket; 6. a third mounting bracket; 7. a rear Fresnel lens; 8. a TFT screen; 9. a front Fresnel lens; 10. a reflective mirror; 11. a lens; 12. a bottom case; 13. a heat radiation fan; 14. a first dust-proof screen plate; 15. a second dust-proof screen plate; 16. a top cover; 17. a third dust prevention screen plate; 18. a heat dissipating fin; 19. a fixed mount; 20. mounting a column; 21. a first screw; 22. a second screw.

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. 1-4, a dustproof heat dissipation structure of a projector comprises a main body 1, a first mounting frame 2 is fixedly arranged on one side inside the main body 1, optical tubes 3 matched with the first mounting frame 2 are arranged on two sides of one side of the first mounting frame 2, an LED light source 4 is fixedly arranged on one side inside two groups of optical tubes 3, a rear fresnel lens 7, a TFT screen 8 and a front fresnel lens 9 are sequentially arranged inside the main body 1 from one side close to the optical tubes 3, a reflective mirror 10 is obliquely arranged on one side of the front fresnel lens 9 inside the main body 1, a lens 11 is fixedly arranged at one end of the reflective mirror 10 inside the main body 1, a bottom shell 12 matched with the main body 1 is arranged at the bottom of the main body 1, two groups of heat dissipation fans 13 matched with the rear fresnel lens 7, the TFT screen 8 and the front fresnel lens 9 are arranged at two ends inside the bottom of the bottom shell 12, a first dustproof mesh plate 14 and a second dustproof mesh plate 15 matched with the bottom shell 12 are respectively arranged at two ends, the top of the main body 1 is provided with a top cover 16 matched with the main body, and one side inside the top cover 16 is provided with a third dust prevention screen plate 17.

The utility model is provided with a bottom shell 12 at the bottom of a main body 1, a rear Fresnel lens 7, a TFT screen 8 and a front Fresnel lens 9 are arranged in the main body 1 in sequence, two ends of the inner part of the bottom shell 12 are provided with a heat radiation fan 13 which is positioned below the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9, and then the heat radiation fan 13 can blow heat radiation air flow to the gap between the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9, so that heat can not be accumulated between the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9, the TFT screen 8 can be kept to be normally operated after long-time use, two sides and two ends of the bottom shell 12 are respectively provided with a first dustproof screen plate 14 and a second dustproof screen plate 15 which are detachably connected, and external air can pass through the first dustproof screen plate 14 and the second dustproof screen plate 15 to enter the inner part of the, and the inside hot-air of main part 1 can be discharged to the inside third dustproof otter board 17 that sets up of top cap 16, and first dustproof otter board 14, second dustproof otter board 15 and third dustproof otter board 17 all can be dismantled the installation, conveniently wash, the maintenance of being convenient for, extension practical life.

Please refer to fig. 1 and fig. 2 heavily, one side that main part 1 inside both ends are located light section of thick bamboo 3 is fixed respectively be provided with back fresnel lens 7, TFT screen 8, preceding fresnel lens 9 matched with second mounting bracket 5 and third mounting bracket 6, and second mounting bracket 5 and third mounting bracket 6 are inside be provided with back fresnel lens 7, TFT screen 8, preceding fresnel lens 9 matched with mounting groove, the utility model discloses a structure more than setting up is convenient for install the dismantlement to back fresnel lens 7, TFT screen 8, preceding fresnel lens 9, and it is comparatively convenient to use.

Please refer to fig. 1 and fig. 2, a fixing frame 19 matched with the two groups of light tubes 3 is fixedly arranged on one side of the first mounting frame 2, and mounting holes matched with the two groups of light tubes 3 are arranged inside the fixing frame 19, so that the fixing frame 19 is convenient for installing and fixing the two groups of light tubes 3.

Please refer to fig. 1, the position inside the main body 1 located at one end of the two groups of light cylinders 3 is fixedly provided with the heat dissipation fins 18, and the rubber pad is fixedly arranged between the heat dissipation fins 18 and the main body 1, the utility model discloses a set up the heat dissipation fins 18, play the auxiliary heat dissipation function to the inside of the main body 1.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, the four corners inside the main body 1 are all fixedly provided with the mounting posts 20, the four corners at the bottom of the bottom shell 12 are all provided with the first screws 21 penetrating through the bottom shell 12 and extending to the inside of the mounting posts 20, and the four corners at the top of the top cover 16 are all provided with the second screws 22 penetrating through the top cover 16 and extending to the inside of the mounting posts 20.

The working principle is as follows: when the LED light source is used, a power supply is switched on, the two groups of LED light sources generate light rays, the light rays are converged through the rear Fresnel lens 7 and penetrate through the TFT screen 8, image information generated by the TFT screen 8 is imaged through the front Fresnel lens 9, then the light is guided into the lens 11 through the reflector 10 and projected on the screen, the bottom shell 12 is arranged at the bottom of the main body 1, the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9 are sequentially arranged in the main body 1, the heat dissipation fans 13 positioned below the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9 are arranged at two ends in the bottom shell 12, and then the heat dissipation fans 13 can blow heat dissipation air flow into gaps among the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9, so that heat cannot be gathered among the rear Fresnel lens 7, the TFT screen 8 and the front Fresnel lens 9, and the normal operation of the TFT screen 8 can be ensured after long-time use, the fixed radiating fin 18 that is provided with of one end that is located two sets of smooth tubes 3 inside main part 1, radiating fin 18 can play certain supplementary radiating effect, makes the utility model discloses holistic radiating effect is better, and the both sides of drain pan 12 and both ends can dismantle the first dustproof otter board 14 and the dustproof otter board 15 of second of connection respectively, external air can pass first dustproof otter board 14 and the dustproof otter board 15 of second and enter into the inside of drain pan 12 and provide sufficient air supply to two sets of radiator fan 13, and the inside hot-air that can discharge main part 1 of the inside third dirt otter board 17 that sets up of top cap 16, first dustproof otter board 14, the dustproof otter board 15 of second and third dirt otter board 17 all can be dismantled the installation, convenient washing, the maintenance of being convenient for, extension practical life.

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 dustproof heat radiation structure of projector, includes main part (1), its characterized in that: the LED lamp is characterized in that a first mounting frame (2) is fixedly arranged on one side inside the main body (1), light cylinders (3) matched with the first mounting frame are arranged on two sides of one side of the first mounting frame (2), LED light sources (4) are fixedly arranged on one sides of the two groups of light cylinders (3), a rear Fresnel lens (7), a TFT screen (8) and a front Fresnel lens (9) are sequentially arranged inside the main body (1) from one side close to the light cylinders (3), a reflector (10) is obliquely arranged on one side of the front Fresnel lens (9) inside the main body (1), a lens (11) is fixedly arranged at one end, located on the reflector (10), inside the main body (1), a bottom shell (12) matched with the main body is arranged at the bottom of the main body (1), two groups of heat dissipation fans (13) matched with the rear Fresnel lens (7), the TFT screen (8) and the front lens (9) are arranged at two ends inside the bottom of the bottom shell (12), the dustproof screen plate is characterized in that a first dustproof screen plate (14) and a second dustproof screen plate (15) matched with the two sides and two ends of the bottom shell (12) are respectively arranged at the two sides and the two ends of the bottom shell, a top cover (16) matched with the top cover is arranged at the top of the main body (1), and a third dustproof screen plate (17) is arranged on one side inside the top cover (16).

2. The dustproof heat dissipation structure of a projector according to claim 1, wherein: the light tube is characterized in that one side, located at the light tube (3), of the inner two ends of the main body (1), is fixedly provided with a rear Fresnel lens (7), a TFT screen (8) and a front Fresnel lens (9) matched second mounting frame (5) and a third mounting frame (6) respectively, and mounting grooves matched with the rear Fresnel lens (7), the TFT screen (8) and the front Fresnel lens (9) are formed in the second mounting frame (5) and the third mounting frame (6).

3. The dustproof heat dissipation structure of a projector according to claim 1, wherein: the fixing frame (19) matched with the two groups of light cylinders (3) is fixedly arranged on one side of the first mounting frame (2), and mounting holes matched with the two groups of light cylinders (3) are formed in the fixing frame (19).

4. The dustproof heat dissipation structure of a projector according to claim 1, wherein: the LED lamp is characterized in that radiating fins (18) are fixedly arranged at the positions, located at one ends of the two groups of light cylinders (3), in the main body (1), and rubber pads are fixedly arranged between the radiating fins (18) and the main body (1).

5. The dustproof heat dissipation structure of a projector according to claim 1, wherein: the mounting column (20) is fixedly arranged at the four corners inside the main body (1), first screws (21) penetrating through the bottom shell (12) and extending to the inside of the mounting column (20) are arranged at the four corners at the bottom of the bottom shell (12), and second screws (22) penetrating through the top cover (16) and extending to the inside of the mounting column (20) are arranged at the four corners at the top of the top cover (16).