Projector with self-dust-cleaning function and good heat dissipation performance

Abstract

The utility model relates to the technical field of projectors, and discloses a projector with a self-cleaning function and good heat dissipation performance, which comprises an outer shell of the projector, an LED light source, a luminous flux cover, a first Fresnel lens, a display screen and a second Fresnel lens are sequentially arranged in the outer shell from back to front, a lens is fixedly installed on the front side of the outer shell, and an optical machine cavity is formed between the second Fresnel lens and the lens. The heat dissipation device further comprises a cross flow fan and a heat dissipation cover plate. A cross-flow fan is fixedly installed in the middle of the lower side of the outer shell, and a heat dissipation cover plate corresponding to the cross-flow fan is fixedly installed on the top of the outer shell. An air blower, an air outlet duct and a heat dissipation plate; an air blower is fixedly installed on the right side of the outer shell, an air outlet channel fixed to the outer shell is arranged on the rear side of the air blower, and a heat dissipation plate fixed to the rear side of the LED light source is arranged at the tail end of the air outlet channel. Compared with the prior art, the heat dissipation device has the advantages that when the heat dissipation device is used, the heat dissipation effect is better, the heat dissipation efficiency is higher, and the first Fresnel lens, the display screen and the second Fresnel lens in the heat dissipation device can be automatically dedusted.

Description

Technical Field

[0001] The utility model relates to the technical field of projectors, in particular to a projector with a self-cleaning function and good heat dissipation. Background Art

[0002] Projectors are a popular viewing device. Compared with TVs, projectors can provide users with a different viewing experience. At present, when using existing projectors, they generally only use a cross-flow fan to dissipate heat, resulting in poor heat dissipation effect and low heat dissipation efficiency; and existing projectors do not have a structure to automatically clean the dust on the internal mirror and display screen (dust on the mirror and display screen can easily cause black spots on the projected image), resulting in the need to regularly disassemble the projector and then clean the mirror and display screen, which is very troublesome.

[0003] Here, in order to solve the above problems, we propose a projector with a self-cleaning function and good heat dissipation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the above technical difficulties and provide a projector with a self-cleaning function and good heat dissipation. When in use, the projector has a better heat dissipation effect and higher heat dissipation efficiency, and can implement automatic cleaning function for the internal mirror 1, display screen and mirror 2.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] A projector with a self-cleaning function and good heat dissipation, comprising an outer shell of the projector, wherein an LED light source, a light channel cover, a first lens, a display screen and a second lens are sequentially arranged in the outer shell from back to front, a lens is fixedly mounted on the front side of the outer shell, and an optical machine cavity is formed between the second lens and the lens, and further comprising:

[0007] Cross-flow fan and heat dissipation cover plate; a cross-flow fan is fixedly installed in the middle of the lower side of the outer shell, and a heat dissipation cover plate corresponding to the cross-flow fan is fixedly installed on the top;

[0008] A blower, an air outlet and a heat sink; the blower is fixedly mounted on the right side of the outer shell, an air outlet fixed to the outer shell is arranged at the rear side of the blower, and a heat sink fixed to the rear side of the LED light source is arranged at the end of the air outlet.

[0009] The advantages of the utility model compared with the prior art are:

[0010] 1. When the present invention is in use, through the cooperation of the cross-flow fan, the heat dissipation cover, the blower and the heat dissipation plate, the projector can obtain more effective and efficient heat dissipation when working, and can better ensure the normal operation of the projector.

[0011] 2. When the present invention is in use, by increasing the power of the cross-flow fan, the automatic dust cleaning function of the first mirror, the display screen and the second mirror inside the projector can be realized, making the dust cleaning work of the projector easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0013] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0014] Figure 3 This is a schematic diagram of the structure of the internal air flow direction of the projector of the utility model. Figure 1 .

[0015] Figure 4 This is a schematic diagram of the structure of the internal air flow direction of the projector of the utility model. Figure 2 .

[0016] Figure 5 It is an exploded view of a part of the structure of the utility model.

[0017] Figure 6 It is a partial structural schematic diagram of the utility model.

[0018] As shown in the figure: 1. Outer shell; 2. LED light source; 3. Light channel cover; 4. Mirror 1; 5. Display screen; 6. Mirror 2; 7. Lens; 8. Optical machine cavity; 9. Cross-flow fan; 10. Heat dissipation cover; 11. Blower; 12. Air outlet; 13. Heat dissipation plate; 14. Air guide plate; 15. Plastic cover. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] A projector with a self-cleaning function and good heat dissipation, comprising:

[0022] The outer shell 1 of the projector has an LED light source 2, a light shield 3, a lens 1 4, a display screen 5 and a lens 2 6 arranged in sequence from the back to the front in the outer shell 1, a lens 7 is fixedly mounted on the front side of the outer shell 1, and an optical machine cavity 8 is formed between the lens 2 6 and the lens 7. The above is the prior art known to those skilled in the art;

[0023] Cross flow fan 9 and heat dissipation cover 10; Figure 5 and 6 As shown, a cross-flow fan 9 is fixedly mounted in the middle of the lower side of the outer shell 1, and a heat dissipation cover plate 10 corresponding to the cross-flow fan 9 is fixedly mounted on the top, and the heat dissipation cover plate 10 is fixed to the front side of the plastic cover plate 15 of the outer shell 1;

[0024] Blower 11, air outlet 12 and heat sink 13; Figure 1 , 2 As shown in FIG. 6 , a blower 11 is fixedly mounted on the right side of the outer shell 1, and an air outlet 12 fixed to the outer shell 1 is provided at the rear side of the blower 11, and a heat sink 13 fixed to the rear side of the LED light source 2 is provided at the end of the air outlet 12. Specifically, the air guide plate 14 is an L-shaped plate in a top view, and after the two ends are respectively fixed to the blower 11 and the heat sink 13, the air outlet 12 is formed between the outer shell 1.

[0025] It is easy to understand that the heat dissipation cover plate 10 and the heat dissipation plate 13 are both metal aluminum structures, which have better thermal conductivity.

[0026] In the specific implementation of this embodiment:

[0027] Heat dissipation function principle: Figure 3 and 4 As shown, the cross-flow fan 9 is working, providing a constant flow wind with a rotation speed of 2000 rpm from bottom to top on the front and back sides of the display screen 5 for heat dissipation, and blowing the heat of the mirror 1 4, the display screen 5 and the mirror 2 6 to the heat dissipation cover 10 of the aluminum profile. The heat dissipation cover 10 replaces a part of the heat from the optical machine cavity 8 to the outside of the projector to achieve heat dissipation; the remaining heat in the optical machine cavity 8 is extracted by the blower 11 and blown along the air outlet duct 3 to the heat dissipation plate 13 of the aluminum profile, further improving the heat dissipation effect and causing the temperature of the LED light source 2 to drop.

[0028] Principle of the dust cleaning function: when the rotation speed of the cross-flow fan 9 is doubled to 6000 rpm, it will provide high wind speed for the flow channel between the mirror 1 4, the display screen 5 and the mirror 2 6, thereby blowing the dust accumulated on the mirror 1 4, the display screen 5 and the mirror 2 6 to the back glue of the heat dissipation cover 10, thereby realizing automatic dust cleaning of the projector.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A projector with a self-cleaning function and good heat dissipation, comprising an outer shell (1) of the projector, wherein an LED light source (2), a light channel cover (3), a first lens (4), a display screen (5) and a second lens (6) are arranged in sequence from back to front in the outer shell (1), a lens (7) is fixedly mounted on the front side of the outer shell (1), and an optical machine cavity (8) is formed between the second lens (6) and the lens (7), characterized in that: Also includes: A cross-flow fan (9) and a heat dissipation cover plate (10); the cross-flow fan (9) is fixedly mounted in the middle of the lower side of the outer shell (1), and a heat dissipation cover plate (10) corresponding to the cross-flow fan (9) is fixedly mounted on the top; A blower (11), an air outlet duct (12) and a heat sink (13); the blower (11) is fixedly mounted on the right side of the outer shell (1), the rear side of the blower (11) is provided with an air outlet duct (12) fixed on the outer shell (1), and the end of the air outlet duct (12) is provided with a heat sink (13) fixed on the rear side of the LED light source (2).

2. A projector with self-cleaning function and good heat dissipation according to claim 1, characterized in that: It also includes an air guide plate (14); the air guide plate (14) is an L-shaped plate in a top view, and its two ends are respectively fixed to the blower (11) and the heat sink (13), so as to form an air outlet duct (12) between the air guide plate and the outer shell (1).

3. The projector with self-cleaning function and good heat dissipation according to claim 1, characterized in that: The heat dissipation cover plate (10) and the heat dissipation plate (13) are both metal aluminum structures.

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