Projector heat dissipation air duct structure

Abstract

The utility model relates to the technical field of projector heat dissipation, and particularly discloses a projector heat dissipation air duct structure, a projector comprises an optical machine body, a lens assembly is fixedly arranged on one side of the optical machine body, an air inlet and an air outlet are arranged in the optical machine body, a narrow opening is arranged on one side of the air outlet, and two arc-shaped side plates are fixedly arranged on the optical machine body. A first fan is fixedly arranged in the ray machine body, an air guide groove is fixedly formed in the air outlet end of the first fan, the air guide groove is communicated with an air outlet and a narrow opening, a light source is fixedly arranged at one end of the ray machine body, a radiator is fixedly connected below the light source, and a second fan is fixedly arranged on one side of the radiator. In the actual projection process, the inside and the outside of the projector are separated for heat dissipation and are matched with each other, internal circulation heat dissipation is driven by the first fan, airflow flows in the projector to take away heat on a screen, and then air flows in a heat dissipation air duct below the light machine body and in the air duct driven by the second fan, so that external heat dissipation is formed, and efficient heat dissipation is matched.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of projectors, in particular to a heat dissipation air duct structure of a projector. Background Art

[0002] Projectors are used in homes, offices, and entertainment venues to project pictures or videos. In actual use, both the screen and the light source will generate heat.

[0003] In the prior art, the application number is CN201720080856.3, and the name disclosed is: projector heat dissipation structure and projector, which includes at least two heat dissipation groups, the heat dissipation group includes a fan, a heat sink and at least one heat conductor, the heat conductor includes a first end and a second end opposite to each other along the length direction, the first end is used to connect the heat generating element of the projector optical machine, and the second end is fixedly connected to the heat sink, and the shell is provided with an air inlet and at least two air outlets.

[0004] However, in the heat dissipation structure mentioned in the prior art, air enters from the heat dissipation holes and is then discharged from the air outlet. The exchange of air with the outside world will cause dust to accumulate inside the optical machine, affecting the operation of the projection elements inside the projector and easily damaging the internal elements. Therefore, it is necessary to design a projector heat dissipation duct structure. Utility Model Content

[0005] The utility model aims to provide a heat dissipation air duct structure for a projector to solve the problems in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A heat dissipation air duct structure for a projector, the projector comprises an optical machine body, a lens assembly is fixedly provided on one side of the optical machine body, an air inlet and an air outlet are provided in the optical machine body, a narrow opening for heat dissipation is provided on one side of the air outlet, and two arc-shaped side panels for guiding air are fixedly provided on the optical machine body.

[0008] A fan 1 is fixedly arranged in the optical machine body, an air guide groove is fixedly arranged at the air outlet end of the fan 1, an air outlet and a narrow opening are connected on the air guide groove, a light source is fixedly arranged at one end of the optical machine body, a heat sink is fixedly connected below the light source, and a fan 2 is fixedly arranged on one side of the heat sink.

[0009] Furthermore, a light shield is fixedly provided on one side of the light source, and one end of the light shield is fixedly connected to the optical machine body.

[0010] Furthermore, a screen assembly is fixedly provided in the optical machine body, a reflector is fixedly provided in the optical machine body and on one side of the screen assembly, and two arc-shaped side panels are respectively located at two ends of the screen assembly.

[0011] Furthermore, a cushion block is fixedly provided in the optical machine body, an air inlet is provided in the optical machine body and below the reflector, and a narrow opening is provided on one side of the air outlet.

[0012] Furthermore, a profile heat sink is fixedly provided below the air guide groove, a plastic shell is fixedly provided below the profile heat sink, a power board is fixedly provided below the optical machine body, an air duct is provided between the optical machine body and the bottom cover of the projector, and the power board is located in the air duct.

[0013] Furthermore, the power board is located on one side of the second fan, and the second fan is used to dissipate heat from the power board.

[0014] Furthermore, a plurality of holes are provided below the light shield, and the holes are used to discharge the heat of the reflective cup inside the projector.

[0015] Beneficial effects of the utility model:

[0016] 1. The heat dissipation duct structure of the projector of the utility model adopts separate heat dissipation work inside and outside the projector during the actual projection process, and cooperates with each other. The internal circulation heat dissipation is driven by fan 1, so that the air flow flows inside the projector to take away the heat on the screen, and then the air flow in the heat dissipation duct under the optical machine body is driven by fan 2 to form external heat dissipation, which cooperates with efficient heat dissipation;

[0017] 2. The heat dissipation duct structure of the projector of the utility model has a simple structure and can efficiently dissipate heat for the screen inside the projector. The airflow in the external heat dissipation duct can also dissipate heat for multiple heat dissipation structures in parallel, thereby improving the heat dissipation efficiency and ensuring reliable heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the projector of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the optical machine body of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the optical machine body of the utility model;

[0022] Figure 4 It is a cross-sectional view of the optical machine body of the utility model;

[0023] Figure 5 This utility model Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 It is a cross-sectional view of the photomask of the utility model. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] A projector heat dissipation duct structure, such as Figure 1 , Figure 2 As shown, the projector includes an optical machine body 1, a lens assembly 6 is fixedly provided on one side of the optical machine body 1, a light source 2 is fixedly provided on one end of the optical machine body 1, a light cover 22 is fixedly provided on one side of the light source 2, one end of the light cover 22 is fixedly connected to the optical machine body 1, so that the light cover 22 is fixedly connected between the optical machine body 1 and the light source 2, and a radiator 21 is fixedly connected below the light source 2, and the radiator 21 is a copper tube radiator, and the radiator 21 mainly transfers the heat on the light source 2 to the fins.

[0027] As 3- Figure 5 As shown, a screen assembly 11 is fixedly provided in the optical machine body 1. When light passes through the screen assembly 11, heat is generated on the screen assembly 11. A reflector 12 is fixedly provided in the optical machine body 1 and located on one side of the screen assembly 11. The light cover 22 guides the light emitted by the light source 2 to the screen assembly 11. After passing through the screen assembly 11, the light is reflected at the reflector 12 and emitted from the lens assembly 6.

[0028] Two arc-shaped side panels 10 are fixedly provided on the optical machine body 1. The two arc-shaped side panels 10 are arranged opposite to each other and are located at both ends of the screen assembly 11. A pad 17 is fixedly provided in the optical machine body 1 for installing and fixing the screen assembly 11 and the reflector 12. An air inlet 13 is opened in the optical machine body 1 and below the reflector 12. An air outlet 15 is opened in the optical machine body 1 and below the screen assembly 11. A narrow opening 16 is opened on one side of the air outlet 15.

[0029] In this embodiment, the narrow opening 16 is located between the rear mirror and the insulating glass of the screen assembly 11. The narrow opening 16 has a small air intake and is used for heat dissipation. The air outlet 15 dissipates heat for other screens of the screen assembly 11. After the airflow passes through the screen assembly 11, it flows through the inner wall of the curved side panel 10, and then flows to both sides of the reflector 12, contacts the reflector 12 to dissipate heat for the reflector 12, and then flows downward from the air inlet 13 into the fan 3.

[0030] A fan 3 is fixedly installed in the optical machine body 1. The air inlet end of the fan 3 is connected to the air inlet 13. The air outlet end is fixedly provided with an air guide groove 14. The air guide groove 14 is connected to the air outlet 15 and the narrow opening 16. A profile heat sink 4 is fixedly installed below the air guide groove 14 for dissipating heat from the air guide groove 14.

[0031] In this embodiment, a plastic shell is fixedly provided below the profile heat sink 4 , and the plastic shell covers half of the profile heat sink 4 , which is beneficial to the heat dissipation of the power board 7 .

[0032] A power board 7 is fixedly provided at the bottom of the optical machine body 1, and an air duct 18 is arranged between the optical machine body 1 and the bottom cover of the projector. The bottom cover is not shown in the figure. The air duct 18 is located below the fan 3, and the power board 7 is located in the air duct 18, which is beneficial to the heat dissipation of the power board 7. The wind flows into the air duct 18 from above and below the power board 7. The power board 7 is located on one side of the fan 2 5, and the air inlet end of the fan 2 5 faces the air duct 18. Under the action of the fan 2 5, the wind passes through the air duct 18 from left to right, and takes away the heat from the power board 7, the bottom of the fan 3 and the profile radiator 4 in turn. The air outlet end of the fan 2 5 faces the radiator 21. When the fan 2 5 exhausts air, the radiator 21 will be cooled.

[0033] like Figure 6 As shown, a plurality of holes 20 are provided below the light shield 22 , and the heat of the reflective cup inside the light shield 22 is discharged from the arranged holes 20 , and then the heat is taken away by the heat dissipation airflow.

[0034] Working principle:

[0035] During actual use, the light source 2 and the various screens in the projection optical machine generate heat, and it is necessary to drive the internal wind to flow through the air guide groove 14, the air outlet 15, the curved side panel 10, and the air inlet 13 through the optical machine body 1 to dissipate the heat inside the optical machine body 1.

[0036] The heat is concentrated between the lower part of the optical machine body 1 and the bottom cover of the projector, and then the fan 2 5 is started to promote the flow of gas in the air duct 18 to dissipate the heat in the lower part of the optical machine body 1, reduce the heat of the internal optical path of the optical machine body 1, and will not interfere with the internal projection work. The heat dissipation effect is obvious, the heat dissipation is reliable and efficient.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A heat dissipation duct structure for a projector, the projector comprising an optical machine body (1), characterized in that: A lens assembly (6) is fixedly provided on one side of the optical machine body (1); an air inlet (13) and an air outlet (15) are provided inside the optical machine body (1); a narrow opening (16) for heat dissipation is provided on one side of the air outlet (15); and two arc-shaped side panels (10) for guiding air are fixedly provided on the optical machine body (1); A fan 1 (3) is fixedly arranged inside the optical machine body (1); an air guide groove (14) is fixedly arranged at the air outlet end of the fan 1 (3); an air outlet (15) and a narrow opening (16) are connected to the air guide groove (14); a light source (2) is fixedly arranged at one end of the optical machine body (1); a heat sink (21) is fixedly connected below the light source (2); and a fan 2 (5) is fixedly arranged on one side of the heat sink (21).

2. A projector heat dissipation duct structure according to claim 1, characterized in that: A light shield (22) is fixedly provided on one side of the light source (2), and one end of the light shield (22) is fixedly connected to the optical machine body (1).

3. The heat dissipation duct structure of a projector according to claim 1, characterized in that: A screen assembly (11) is fixedly arranged in the optical machine body (1), a reflector (12) is fixedly arranged in the optical machine body (1) and located on one side of the screen assembly (11), and two arc-shaped side panels (10) are respectively located at two ends of the screen assembly (11).

4. A projector heat dissipation duct structure according to claim 3, characterized in that: A cushion block (17) is fixedly provided in the optical machine body (1), an air inlet (13) is provided in the optical machine body (1) and below the reflector (12), and a narrow opening (16) is provided on one side of the air outlet (15).

5. The heat dissipation duct structure of a projector according to claim 1, characterized in that: A profile heat sink (4) is fixedly provided below the air guide groove (14), a plastic shell is fixedly provided below the profile heat sink (4), a power board (7) is fixedly provided below the optical machine body (1), an air duct (18) is provided between the optical machine body (1) and the bottom cover of the projector, and the power board (7) is located in the air duct (18).

6. A projector heat dissipation duct structure according to claim 5, characterized in that: The power board (7) is located on one side of the second fan (5), and the second fan (5) is used to dissipate heat from the power board (7).

7. The heat dissipation duct structure of a projector according to claim 2, characterized in that: A plurality of holes (20) are provided below the light cover (22), and the holes (20) are used to discharge heat from a reflective cup inside the projector.

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