CN218446348U

CN218446348U - Fan assembly of projector and projector thereof

Info

Publication number: CN218446348U
Application number: CN202222541909.0U
Authority: CN
Inventors: 严国华
Original assignee: Shenzhen Saijin Zhitou Electronics Co ltd
Current assignee: Shenzhen Saijin Zhitou Electronics Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-03
Anticipated expiration: 2032-09-26

Abstract

A fan assembly of a projector and the projector thereof are provided, wherein the fan assembly comprises an air blower, the air blower is arranged on the inner side of a bottom shell of the projector, which is close to an air inlet of the bottom shell, the air inlet of the air blower is adjacent to the air inlet of the bottom shell, and an air outlet of the air blower is used for dissipating heat of a light source of the projector; a black foam layer is arranged between the fan air inlet and the bottom shell air inlet, and the area of the black foam layer is larger than or equal to that of the fan air inlet. The utility model has the advantages of simple structure, low cost and capability of preventing light leakage of the air inlet.

Description

Fan assembly of projector and projector thereof

Technical Field

The utility model belongs to the technical field of the projecting apparatus technique and specifically relates to a fan subassembly of projecting apparatus and projecting apparatus thereof.

Background

The LCD projector is behind the LCD panel, uses powerful backlight to shine through the rear film mirror on the LCD panel, because the LCD panel is printing opacity, the picture will be shone out, beats the screen through front film mirror and camera lens and forms images. Powerful backlight can produce a large amount of heats when producing the highlight, consequently, must timely effectual heat dissipation, prevents simultaneously that the dust from getting into the quality that influences the image.

Patent document 1 is a configuration in which a screen blowing fan is provided on the rear side of a projector lens, and a lamp heat radiation unit is provided on the lower side of the projector lens; set up the cold wind entry on the lateral wall of casing, lamp source radiator unit includes lamp radiator and updraft fan. The blowing screen fan of the projector is arranged on the rear side of the projector lens and communicated with the air outlet light source channel to process heat radiation generated by the light source, the exhaust fan is arranged on the lower side of the projector lens to process heat generated on the light source and the radiator, and the two fans shunt wind currents, so that heat dissipation is solved, and dust is prevented from entering the projector.

This kind of structure needs two fans (one blows screen fan and an induced draft fan) joint operation, just can solve the heat and give off and prevent the problem that the dust got into, has that the structure is complicated, with high costs, and can not prevent the problem of air intake light leak.

Patent document 1 is a publication of chinese patent document No. CN 115047701A.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the utility model provides a simple structure, with low costs to and can prevent fan subassembly and the projecting apparatus of air intake light leak.

The technical scheme of the utility model is that: the fan assembly of the projector comprises a fan, wherein the fan is arranged on the inner side, close to an air inlet of a bottom shell, of the bottom shell of the projector, the fan air inlet of the fan is adjacent to the air inlet of the bottom shell, and the fan air outlet of the fan is used for radiating heat of a light source of the projector; a black foam layer is arranged between the air inlet of the fan and the air inlet of the bottom shell, and the area of the black foam layer is larger than or equal to that of the air inlet of the fan; the black foam layer and the air inlet of the fan are provided with plastic sheets, the plastic sheets are provided with a plurality of through holes, and the area of the plastic sheets is larger than or equal to that of the black foam layer.

As an improvement of the utility model, the plastic sheet is made of PVC plastic.

As an improvement to the present invention, the plastic sheet is black.

As an improvement of the utility model, the thickness of the plastic sheet is selected between 0.1-1.0 mm.

As right the utility model discloses an improve the inboard of drain pan air intake, both sides are equipped with a pair of location strip around the drain pan air intake, the cotton layer of black bubble is established in the location strip.

As an improvement of the utility model, the thickness of the black foam layer is selected between 1-3 mm.

As right the utility model discloses an improve the inboard of drain pan air intake, both sides are equipped with a pair of location strip around the drain pan air intake, black bubble cotton layer with the plastic sheet is established in proper order from outside to inside in the location strip.

The utility model also provides a projector, include the fan subassembly of foretell projector.

The utility model adopts the structure that the black foam layer is arranged between the fan air inlet and the bottom shell air inlet, the area of the black foam layer is larger than or equal to the area of the fan air inlet, and the black foam layer is used for blocking the fan air inlet, so that the structure is simple, the cost is low, and the black foam layer can block light rays in a light path from leaking out of the bottom shell air inlet, thereby achieving the purpose of preventing light leakage; the utility model discloses still adopt black bubble cotton layer with the fan air intake is equipped with the plastic sheet be equipped with a plurality of through-hole on the plastic sheet, the area of plastic sheet is greater than or equal to the structure of the area on black bubble cotton layer can effectually prevent that black bubble is cotton in by fan air intake suction fan.

Drawings

Fig. 1 is a schematic perspective exploded view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of the assembled structure of fig. 1.

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.

Referring to fig. 1 and 2, fig. 1 and 2 disclose a blower assembly of a projector, including a blower 1, the blower 1 being disposed on an inner side of a bottom chassis 2 of the projector near a bottom chassis inlet 21, a blower inlet 11 (not directly visible in the drawing) of the blower 1 being adjacent to the bottom chassis inlet 21, and a blower outlet 12 of the blower 1 being used for dissipating heat from a light source of the projector; a black foam layer 13 (namely, an EVA foam layer) is arranged between the fan air inlet 11 and the bottom case air inlet 21, and the area of the black foam layer 13 is greater than or equal to the area of the fan air inlet 11; the black foam layer 13 and the fan air inlet 11 are provided with a plastic sheet 14, the plastic sheet 14 is provided with a plurality of through holes 141, and the area of the plastic sheet 14 is larger than or equal to that of the black foam layer 13.

The utility model discloses owing to adopted fan air intake 11 with be equipped with the cotton layer of black bubble 13 between the drain pan air intake 21, the cotton layer 13's of black bubble area is greater than or equal to the structure of the area of fan air intake 11 blocks fan air intake 11 with the cotton layer 13 of black bubble, and not only simple structure, low cost, black bubble cotton layer 13 can also block the light in the light path and leak away from drain pan air intake 21 in addition, has played the purpose that prevents the light leak.

Adopt black bubble cotton layer 13 with be equipped with plastic sheet 14 between fan air intake 11 be equipped with a plurality of through-hole 141 on the plastic sheet 14, just the area of plastic sheet 14 is more than or equal to the structure of black bubble cotton layer 13's area can effectually prevent that black bubble cotton layer 13 from being inhaled in the fan 1 from fan air intake 11.

Preferably, the plastic sheet 14 is made of PVC plastic.

Preferably, the plastic sheet 14 is black.

Preferably, the thickness of the plastic sheet 14 is selected between 0.1-1.0 mm.

Preferably, a pair of positioning strips 22 is arranged on the inner side of the bottom shell air inlet 21 and on the front and rear sides of the bottom shell air inlet 21, and the black foam layer 13 is arranged in the positioning strips 22.

Preferably, the thickness of the black foam layer 13 is selected between 1 and 3 mm.

Preferably, a pair of positioning strips 22 is arranged on the inner side of the bottom shell air inlet 21 and on the front and rear sides of the bottom shell air inlet 21, and the black foam layer 13 and the plastic sheet 14 are sequentially arranged in the positioning strips 22 from outside to inside.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A fan assembly of a projector includes a blower (1), characterized in that: the air blower (1) is arranged on the inner side, close to the bottom shell air inlet (21), of the projector bottom shell (2), the air blower air inlet (11) of the air blower (1) is adjacent to the bottom shell air inlet (21), and the air blower air outlet (12) of the air blower (1) is used for dissipating heat of a light source of the projector; a black foam layer (13) is arranged between the fan air inlet (11) and the bottom shell air inlet (21), and the area of the black foam layer (13) is larger than or equal to that of the fan air inlet (11); cotton layer (13) of black bubble with fan air intake (11) is equipped with plastic sheet (14) be equipped with a plurality of through-hole (141) on plastic sheet (14), the area of plastic sheet (14) is more than or equal to the area of cotton layer (13) of black bubble.

2. The blower assembly of a projector according to claim 1, wherein: the plastic sheet (14) is made of PVC plastic.

3. The blower assembly of a projector according to claim 1 or 2, wherein: the plastic sheet (14) is black.

4. The blower assembly of a projector according to claim 1 or 2, wherein: the thickness of the plastic sheet (14) is selected between 0.1-1.0 mm.

5. The blower assembly for a projector according to claim 1, wherein: the inner side of the bottom shell air inlet (21), the front side and the rear side of the bottom shell air inlet (21) are provided with a pair of positioning strips (22), and the black foam layer (13) is arranged in the positioning strips (22).

6. The blower assembly for a projector according to claim 1, 2 or 5, wherein: the thickness of the black foam layer (13) is selected between 1 mm and 3 mm.

7. The blower assembly for a projector according to claim 1 or 2, wherein: the utility model discloses a black bubble cotton layer, including drain pan air intake (21), both sides are equipped with a pair of location strip (22) around drain pan air intake (21), black bubble cotton layer (13) with plastic sheet (14) are established in proper order from outside to inside in location strip (22).

8. A projector characterized by: a fan assembly incorporating a projector according to any one of claims 1 to 7.