CN214278605U

CN214278605U - Novel heat radiation structure of projector

Info

Publication number: CN214278605U
Application number: CN202120041418.2U
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 novel 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 fixed LED light source that is provided with of intermediate position department at heat radiation fins top, the inside LED light source top that is located of casing is provided with the light section of thick bamboo with LED light source matched with, the inside top that is located the 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 board. The utility model discloses a first fan is all installed in the both sides of casing one end, and the both sides of casing one end all are provided with first fan matched with through-hole, and then two sets of first fans can ventilate the gap between inside back fresnel lens of casing, TFT board, the preceding fresnel lens, and effectual messenger TFT board can be fine the distributing away of heat under the condition of long-term heat gathering, great improvement the life of TFT board.

Description

Novel heat radiation structure of projector

Technical Field

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

Background

The projector is a display device for generating pictures anytime and anywhere, particularly a small projector, which is a representative of equipment with high integration level, and has the characteristics of small volume, high spatial integration level and high power consumption.

In the prior art, the projector only radiates the LED light source, although the TFT plate does not directly contact with the light-emitting light source, after the TFT plate is irradiated by a long-term light source, heat is gathered and cannot be effectively radiated, and the sensitive TFT plate of the electronic component cannot normally operate easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the TFT plate cannot effectively dissipate heat in the prior art, a novel 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 novel heat radiation structure of projector, includes the casing, the inside bottom mounting of casing is provided with heat radiation fins, the fixed LED light source that is provided with of intermediate position department at heat radiation fins top, the inside LED light source top that is located of casing is provided with the light section of thick bamboo with LED light source matched with, the inside top that is located the 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 board, the inside top that is located the TFT board of casing is provided with preceding fresnel lens, the both sides of the position department of casing one end and TFT board parallel and level all are provided with the through-hole, the both sides of casing one end all are fixed be provided with the first fan with through-hole matched with.

Preferably, a second fan is fixedly arranged at one side of the bottom end of the interior of the shell, which is located at the heat dissipation fins, and a third fan is fixedly arranged at one side of the top of the heat dissipation fins, which is located at the light tube.

Preferably, the top of the housing is obliquely provided with a light guide plate above the front fresnel lens, and a focusing lens matched with the light guide plate is arranged in the middle of one end of the top of the housing.

Preferably, the bottom ends of the two sides of the shell are provided with first ventilation holes matched with the heat dissipation fins and the second fan, and the second ventilation holes matched with the third fan are arranged above the first ventilation holes on the two sides of the shell.

Preferably, the middle positions of the two sides of the front fresnel lens are fixedly provided with rotating shafts which extend into the shell and are rotatably connected with the shell, and the two sides of the shell are provided with matching holes matched with the rotating shafts.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a first fan is all installed in the both sides of casing one end, and the both sides of casing one end all are provided with first fan matched with through-hole, and then two sets of first fans can ventilate the gap between inside back fresnel lens of casing, TFT board, the preceding fresnel lens, effectual messenger TFT board can be fine the distributing away of heat under the condition of long-term heat gathering, very high protection the TFT board, great improvement the life of TFT board.

Drawings

Fig. 1 is a schematic structural view of a first viewing angle of the present invention;

fig. 2 is an exploded view 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. an LED light source; 4. a light cylinder; 5. a rear Fresnel lens; 6. a TFT plate; 7. a front Fresnel lens; 8. a through hole; 9. a first fan; 10. a light guide plate; 11. a focus lens; 12. a second fan; 13. a third fan; 14. a first vent hole; 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 novel 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, an LED light source 3 is fixedly disposed at a middle position of a top of the heat dissipation fin 2, a light tube 4 matched with the LED light source 3 is disposed at a top of the LED light source 3 inside the housing 1, a rear fresnel lens 5 is disposed above the light tube 4 inside the housing 1, a TFT plate 6 is disposed above the rear fresnel lens 5 inside the housing 1, a front fresnel lens 7 is disposed above the TFT plate 6 inside the housing 1, through holes 8 are disposed at two sides of a position where one end of the housing 1 is flush with the TFT plate 6, and first fans 9 matched with the through holes 8 are fixedly disposed at two sides of one end of the housing 1.

The utility model discloses a first fan 9 is all installed in the both sides of 1 one end of casing, and the both sides of 1 one end of casing all be provided with first fan 9 matched with through-hole 8, and then two sets of first fans 9 can be to 1 inside back fresnel lens 5 of casing, TFT board 6, the gap between the preceding fresnel lens 7 ventilates, effectual messenger TFT board 6 can be fine the distributing away of heat under the condition of long-term heat gathering, very high protection TFT board 6, great improvement TFT board 6's life.

Please refer to fig. 1, fig. 2 and fig. 3, the bottom of the casing 1 is located on one side of the heat sink 2 and is fixedly provided with the second fan 12, and the top of the heat sink 2 is located on one side of the light tube 4 and is fixedly provided with the third fan 13.

Please refer to fig. 1, fig. 2 and fig. 3, the top of the housing 1 is obliquely provided with a light guide plate 10 above the front fresnel lens 7, and the middle position of one end of the top of the housing 1 is provided with a focusing lens 11 matched with the light guide plate 10.

Please refer to fig. 1, fig. 2 and fig. 3, the bottom of the two sides of the casing 1 is provided with the first ventilation hole 14 matching with the heat dissipation fin 2 and the second fan 12, the top of the first ventilation hole 14 on the two sides of the casing 1 is provided with the second ventilation hole 15 matching with the third fan 13, the utility model discloses a structure above the setting, the heat dissipation effect of the utility model is better.

Please refer to fig. 1, fig. 2 and fig. 3, the middle positions of the two sides of the front fresnel lens 7 are all fixedly provided with a rotating shaft 16 extending to the inside of the casing 1 and rotatably connected with the casing 1, and the two sides of the casing 1 are all provided with matching holes matched with the rotating shaft 16.

The working principle is as follows: when in use, the power is switched on, the LED light source 3 generates light, the light is converged by the rear Fresnel lens 5, the light passes through the TFT plate 6, the graphic and text information generated by the TFT plate 6 is imaged by the front Fresnel lens 7, and then the light is guided into the focusing lens 11 by the light guide plate 10 and then projected on the screen, the utility model discloses a first fan 9 is arranged on both sides of one end of the shell 1, and both sides of one end of the shell 1 are provided with through holes 8 matched with the first fan 9, so that the gaps among the rear Fresnel lens 5, the TFT plate 6 and the front Fresnel lens 7 inside the shell 1 can be ventilated by the two groups of first fans 9, the TFT plate 6 can effectively radiate heat well under the condition of long-term heat accumulation, the TFT plate 6 is protected highly, the service life of the TFT plate 6 is greatly prolonged, the bottom inside the shell 1 is provided with the heat radiating fins 2, the intermediate position department at 2 tops of heat radiation fin is provided with LED light source 3, and is located the fixed third fan 13 that is provided with in one side of LED light source 3 at 2 tops of heat radiation fin, is located 2 one sides of heat radiation fin and is provided with second fan 12, and then second fan 12 and third fan 13 can dispel the heat to the LED light source, the utility model discloses whole radiating effect is better.

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 novel heat radiation structure of projector, includes casing (1), its characterized in that: the bottom end in the shell (1) is fixedly provided with a heat radiation fin (2), the middle position of the top of the heat radiation fin (2) is fixedly provided with an LED light source (3), a light tube (4) matched with the LED light source (3) is arranged at the top of the LED light source (3) in the shell (1), a rear Fresnel lens (5) is arranged above the light tube (4) in the shell (1), a TFT plate (6) is arranged in the shell (1) and above the rear Fresnel lens (5), a front Fresnel lens (7) is arranged above the TFT plate (6) in the shell (1), through holes (8) are arranged on both sides of the position where one end of the shell (1) is flush with the TFT plate (6), and the two sides of one end of the shell (1) are fixedly provided with first fans (9) matched with the through holes (8).

2. The novel heat dissipation structure of a projector according to claim 1, wherein: the light tube is characterized in that a second fan (12) is fixedly arranged at one side, located on the heat dissipation fins (2), of the bottom end in the shell (1), and a third fan (13) is fixedly arranged at one side, located on the light tube (4), of the tops of the heat dissipation fins (2).

3. The novel heat dissipation structure of a projector according to claim 1, wherein: the top of the shell (1) is obliquely provided with a light guide plate (10) above the front Fresnel lens (7), and the middle position of one end of the top of the shell (1) is provided with a focusing lens (11) matched with the light guide plate (10).

4. The novel heat dissipation structure of a projector according to claim 1, wherein: the bottom ends of the two sides of the shell (1) are provided with first ventilation holes (14) matched with the heat dissipation fins (2) and the second fan (12), and second ventilation holes (15) matched with the third fan (13) are formed in the positions, located above the first ventilation holes (14), of the two sides of the shell (1).

5. The novel heat dissipation structure of a projector according to claim 1, wherein: the middle positions of the two sides of the front Fresnel lens (7) are fixedly provided with rotating shafts (16) which extend to the inside of the shell (1) and are rotatably connected with the shell (1), and the two sides of the shell (1) are provided with matching holes matched with the rotating shafts (16).