Efficient heat dissipation type projector

Abstract

The utility model discloses an efficient heat dissipation type projector, and relates to the field of projector heat dissipation. The efficient heat dissipation type projector comprises an outer shell and a projection lens, a projection light machine is arranged in the outer shell, and the projection light machine comprises a light source part fixed in the outer shell; a heat dissipation mechanism is arranged between the light source piece and the projection lens and comprises a heat dissipation fan, auxiliary heat dissipation fins, main heat dissipation fins and light source heat dissipation fins. According to the efficient heat dissipation type projector, heat exchange is directly conducted between the light source heat dissipation fins and the light source body, meanwhile, the heat dissipation contact area is increased through the heat dissipation grooves in the heat conduction cover, so that heat dissipation of the light source part is improved, meanwhile, the auxiliary heat dissipation fins, the main heat dissipation fins and the light source heat dissipation fins are arranged between the heat dissipation fan and the exhaust grating, and the heat dissipation efficiency is improved. One set of cooling fans can synchronously blow the multiple cooling fins, the design layout is reasonable, the structure is more compact, meanwhile, one-blowing-three is achieved, the design number of the fans is reduced, and the equipment and energy consumption cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of projector heat dissipation, in particular to a highly efficient heat dissipation type projector. Background Technique

[0002] A projector is an integrated projection device that projects an image by irradiating light onto an image display element through an optical system and then projects it through a lens. Currently, projectors mainly include a projection optical engine and a projection lens. The projection optical engine uses optical elements to project the content on the liquid crystal screen onto the projection lens and then displays it outward.

[0003] During actual use, a large amount of heat is generated when the projection optical engine inside the projector is in use, mainly manifested in the light source component and the liquid crystal screen. Traditional technical means use a fan to blow directly, but the surface of the light source component is usually covered with a light shield for concentrating the light source, and the fan cannot directly dissipate heat to it. Using independent heat dissipation driving components for the light source component and the liquid crystal screen respectively will increase the overall power consumption and equipment cost, and increase the burden of the internal structure design of the projector, resulting in an increase in the size of the projector. Therefore, a highly efficient heat dissipation type projector is provided to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a highly efficient heat dissipation type projector, which solves the problems that traditional technical means use a fan to blow directly, but the surface of the light source component is usually covered with a light shield for concentrating the light source, and the fan cannot directly dissipate heat to it. Using independent heat dissipation driving components for the light source component and the liquid crystal screen respectively will increase the overall power consumption and equipment cost, and increase the burden of the internal structure design of the projector, resulting in an increase in the size of the projector.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A highly efficient heat dissipation type projector includes a housing and a projection lens installed at the front end of the housing. A projection optical engine is arranged inside the housing;

[0006] The projection optical engine includes a light source component fixed in the housing;

[0007] The light source component includes a light source main body and a heat conduction cover installed on the outer surface of the light source main body. The heat conduction cover is used to increase the heat dissipation area;

[0008] A heat dissipation mechanism is arranged between the projection optical engine and the projection lens. The heat dissipation mechanism includes;

[0009] A heat dissipation fan, which is installed on one side of the light source component;

[0010] A sealed heat dissipation chamber, which is installed between the light source component and the projection lens. The sealed heat dissipation chamber is used for dust prevention;

[0011] A secondary heat dissipation fin and a primary heat dissipation fin, which are respectively installed on the side wall of the sealed heat dissipation chamber;

[0012] A light source heat dissipation fin, which is installed on the side of the light source body;

[0013] The output end of the heat dissipation fan faces the secondary heat dissipation fin, the primary heat dissipation fin and the light source heat dissipation fin.

[0014] Preferably, the projection optical machine further includes a liquid crystal screen disposed inside the sealed heat dissipation chamber. A front Fresnel lens and a rear Fresnel lens are respectively disposed on both sides of the liquid crystal screen, and a highly reflective mirror is installed between the rear Fresnel lens and the projection lens.

[0015] Preferably, an axial flow fan is installed below the highly reflective mirror. The secondary heat dissipation fin is disposed on the top of the axial flow fan, and the primary heat dissipation fin is fixedly installed on one side of the axial flow fan.

[0016] Preferably, the primary heat dissipation fin is of a split structure. The primary heat dissipation fin includes an inner fin and an outer fin. The inner fin is installed at the output end of the axial flow fan, and the outer fin is disposed between the light source heat dissipation fin and the projection lens.

[0017] Preferably, a reflective light cover is fixedly installed on the outer surface of the light source component. The heat conduction cover is installed on the outer surface of the reflective light cover, and heat dissipation grooves are formed on the outer surface of the heat conduction cover.

[0018] Preferably, a button switch is installed on the top of the outer housing, and an interface module is installed on the inner top of the outer housing. The button switch and the interface module are both electrically connected to the projection optical machine.

[0019] Preferably, an exhaust groove is provided on one side of the outer housing, and a detachable exhaust grille is installed inside the exhaust groove.

[0020] Preferably, the heat dissipation fan faces the exhaust grille, and the secondary heat dissipation fin, the primary heat dissipation fin and the light source heat dissipation fin are all located between the heat dissipation fan and the exhaust grille.

[0021] The present utility model discloses a highly efficient heat dissipation type projector, and the beneficial effects thereof are as follows: By installing a light source heat dissipation fin on the side of the light source body for direct heat exchange with the light source body, and at the same time, heat transfer is carried out through the contact between the heat conduction cover and the reflective light cover, and the heat dissipation contact area is increased by using the heat dissipation grooves, so as to improve the heat dissipation of the light source component. At the same time, the secondary heat dissipation fin, the primary heat dissipation fin and the light source heat dissipation fin are arranged between the heat dissipation fan and the exhaust grille, so that a group of heat dissipation fans blow air on multiple heat dissipation fins synchronously, the design layout is more reasonable and more compact. At the same time, one fan blows three, reducing the number of fan designs and reducing the equipment and energy consumption costs. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the overall outer surface structure of the present invention;

[0024] Figure 2 Schematic diagram of the overall back structure of the present invention;

[0025] Figure 3 Schematic diagram of the outer surface structure of the projection optical machine and the heat dissipation mechanism of the present invention;

[0026] Figure 4 Schematic diagram of the top structure of the projection optical machine and the heat dissipation mechanism of the present invention;

[0027] Figure 5 Schematic diagram of the internal structure of the heat dissipation mechanism of the present invention;

[0028] Figure 6 Exploded view of the internal structure of the light source component of the present invention.

[0029] In the figure: 1, outer housing; 2, projection lens; 3, button switch; 4, interface module; 5, exhaust slot; 6, exhaust grille; 7, projection optical machine; 71, light source component; 711, light source main body; 712, reflecting light cover; 713, heat conduction cover; 714, heat dissipation slot; 72, front Fresnel lens; 73, liquid crystal screen; 74, rear Fresnel lens; 75, 45-degree reflecting mirror; 8, heat dissipation mechanism; 81, heat dissipation fan; 82, sealed heat dissipation chamber; 83, secondary heat dissipation fins; 84, axial flow fan; 85, main heat dissipation fins; 86, light source heat dissipation fins. Specific embodiments

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] By providing an efficient heat dissipation type projector in the embodiments of the present application, the problem that in traditional technical means, a fan blows directly, and the surface of the light source component is usually covered with a light cover for concentrating the light source, so the fan cannot directly dissipate heat to it, and using independent heat dissipation driving components for the light source component and the liquid crystal screen respectively leads to an increase in the overall power consumption and equipment cost, and increases the burden of the internal structure design of the projector, resulting in an increase in the size of the projector is solved.

[0032] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0033] An embodiment of the utility model discloses an efficient heat dissipation type projector.

[0034] According to the attached Figure 1-6 As shown, it includes a housing 1 and a projection lens 2 installed at the front end of the housing 1, and a projection optical machine 7 is arranged inside the housing 1;

[0035] The projection optical machine 7 includes a light source component 71 fixed in the housing 1; the light source component 71 includes a light source main body 711 and a heat conduction cover 713 installed on the outer surface of the light source main body 711, and the heat conduction cover 713 is used to increase the heat dissipation area;

[0036] A heat dissipation mechanism 8 is arranged between the projection optical machine 7 and the projection lens 2, and the heat dissipation mechanism 8 includes a heat dissipation fan 81, a sealed heat dissipation chamber 82, auxiliary heat dissipation fins 83, main heat dissipation fins 85 and light source heat dissipation fins 86;

[0037] The heat dissipation fan 81 is installed on one side of the light source component 71; the sealed heat dissipation chamber 82 is installed between the light source component 71 and the projection lens 2, and the sealed heat dissipation chamber 82 is used for dust prevention; the auxiliary heat dissipation fins 83 and the main heat dissipation fins 85 are respectively installed on the side wall of the sealed heat dissipation chamber 82; the light source heat dissipation fins 86 are installed on the side of the light source main body 711; the output end of the heat dissipation fan 81 faces the auxiliary heat dissipation fins 83, the main heat dissipation fins 85 and the light source heat dissipation fins 86.

[0038] The projection optical machine 7 further includes a liquid crystal screen 73 arranged inside the sealed heat dissipation chamber 82, a front Fresnel lens 72 and a rear Fresnel lens 74 are respectively arranged on both sides of the liquid crystal screen 73, a 45-degree reflecting mirror 75 is installed between the rear Fresnel lens 74 and the projection lens 2, an axial flow fan 84 is installed below the 45-degree reflecting mirror 75, the auxiliary heat dissipation fins 83 are arranged on the top of the axial flow fan 84, and the main heat dissipation fins 85 are fixedly installed on one side of the axial flow fan 84.

[0039] The main heat dissipation fins 85 are of a split structure, and the main heat dissipation fins 85 include inner fins and outer fins. The inner fins are installed at the output end of the axial flow fan 84, and the outer fins are arranged between the light source heat dissipation fins 86 and the projection lens 2.

[0040] A reflective light cover 712 is fixedly installed on the outer surface of the light source component 71. A heat conduction cover 713 is installed on the outer surface of the reflective light cover 712. Heat dissipation grooves 714 are formed on the outer surface of the heat conduction cover 713. Heat transfer is carried out through the contact between the heat conduction cover 713 and the reflective light cover 712, and the heat dissipation contact area is increased by using the heat dissipation grooves 714 to improve the heat dissipation efficiency at the heat conduction cover 713.

[0041] A button switch 3 is installed on the top of the outer housing 1, and an interface module 4 is installed on the inner top of the outer housing 1. Both the button switch 3 and the interface module 4 are electrically connected to the projection optical machine 7. The projection optical machine 7 and the cooling fan 81 are started through the button switch 3.

[0042] An exhaust groove 5 is provided on one side of the outer housing 1. A detachable exhaust grille 6 is installed inside the exhaust groove 5. The cooling fan 81 is facing the exhaust grille 6. The secondary heat dissipation fins 83, the primary heat dissipation fins 85, and the light source heat dissipation fins 86 are all located between the cooling fan 81 and the exhaust grille 6, so as to realize a group of cooling fans 81 blowing air on multiple heat dissipation fins synchronously, with a more reasonable design layout, being more compact, and simultaneously realizing one blowing three, reducing the number of fan designs, and reducing the equipment and energy consumption costs.

[0043] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient heat dissipation type projector, comprising a housing (1) and a projection lens (2) installed at the front end of the housing (1), and a projection optical engine (7) is arranged inside the housing (1); It is characterized in that The projection optical engine (7) includes a light source component (71) fixed in the housing (1); The light source component (71) includes a light source main body (711) and a heat conduction cover (713) installed on the outer surface of the light source main body (711), and the heat conduction cover (713) is used to increase the heat dissipation area; A heat dissipation mechanism (8) is arranged between the projection optical engine (7) and the projection lens (2), and the heat dissipation mechanism (8) includes; A heat dissipation fan (81), which is installed on one side of the light source component (71); A sealed heat dissipation chamber (82), which is installed between the light source component (71) and the projection lens (2), and the sealed heat dissipation chamber (82) is used for dust prevention; Auxiliary heat dissipation fins (83) and main heat dissipation fins (85), which are respectively installed on the side walls of the sealed heat dissipation chamber (82); Light source heat dissipation fins (86), which are installed on the side of the light source main body (711); The output end of the heat dissipation fan (81) faces the auxiliary heat dissipation fins (83), the main heat dissipation fins (85) and the light source heat dissipation fins (86).

2. The highly efficient heat dissipation type projector according to claim 1, wherein: The projection optical engine (7) further includes a liquid crystal screen (73) arranged inside the sealed heat dissipation chamber (82), a front Fresnel lens (72) and a rear Fresnel lens (74) are respectively arranged on both sides of the liquid crystal screen (73), and a 45-degree reflecting mirror (75) is installed between the rear Fresnel lens (74) and the projection lens (2).

3. An efficient heat dissipation type projector according to claim 2, characterized in that: An axial flow fan (84) is installed below the 45-degree reflecting mirror (75), the auxiliary heat dissipation fins (83) are arranged on the top of the axial flow fan (84), and the main heat dissipation fins (85) are fixedly installed on one side of the axial flow fan (84).

4. The high-efficiency heat dissipation type projector according to claim 3, characterized in that: The main heat dissipation fins (85) are of a split structure, the main heat dissipation fins (85) include inner fins and outer fins, the inner fins are installed at the output end of the axial flow fan (84), and the outer fins are arranged between the light source heat dissipation fins (86) and the projection lens (2).

5. An efficient heat dissipation type projector according to claim 1, characterized in that: A reflecting light cover (712) is fixedly installed on the outer surface of the light source component (71), the heat conduction cover (713) is installed on the outer surface of the reflecting light cover (712), and heat dissipation grooves (714) are formed on the outer surface of the heat conduction cover (713).

6. The high-efficiency heat dissipation type projector according to claim 1, wherein: A button switch (3) is installed on the top of the housing (1), an interface module (4) is installed on the inner top of the housing (1), and both the button switch (3) and the interface module (4) are electrically connected to the projection optical engine (7).

7. An efficient heat dissipation type projector according to claim 1, characterized in that: An exhaust groove (5) is arranged on one side of the housing (1), and a detachable exhaust grille (6) is installed inside the exhaust groove (5).

8. The high-efficiency heat dissipation type projector according to claim 7, characterized in that: The heat dissipation fan (81) faces the exhaust grille (6), and the auxiliary heat dissipation fins (83), the main heat dissipation fins (85) and the light source heat dissipation fins (86) are all located between the heat dissipation fan (81) and the exhaust grille (6).

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