Ultra-thin projector with split type heat dissipation layout

Abstract

The utility model discloses an ultra-thin projector with a split type heat dissipation layout, and relates to the field of heat dissipation of projectors. The ultra-thin projector with the split type heat dissipation layout comprises an outer shell, a projection lens is installed at the front end of the outer shell, a projection light machine is arranged in the outer shell, a heat dissipation mechanism is arranged between the projection light machine and the projection lens, and the heat dissipation mechanism comprises a sealed heat dissipation bin and main heat dissipation fins. The main heat dissipation fins are horizontal heat absorption fins and vertical external heat release fins. According to the ultra-thin projector with the split type heat dissipation layout, heat exchange is achieved through the sealed heat dissipation bin, dust influence is avoided, the main heat dissipation fins are installed in a split mode, the horizontal heat absorption fins are arranged at the bottom in the sealed heat dissipation bin, the vertical external heat dissipation fins are arranged on the side face of the projection lens, and the horizontal heat absorption fins and the vertical external heat dissipation fins are connected through the heat exchange connecting pipe. Therefore, the internal space layout of the outer shell is reasonably utilized while efficient internal and external heat dissipation is met, so that the whole projector is ultrathin in design and convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of projector heat dissipation, and specifically relates to an ultra-thin projector with a split heat dissipation layout. Background Art

[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 projecting 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 externally.

[0003] During actual use, a front Fresnel lens and a rear Fresnel lens are arranged on the front and rear sides of the internal liquid crystal screen. A large amount of heat energy will be generated on the surface of the liquid crystal screen during use, and it needs to be cooled. The current technical method is to install a fan to blow directly on it. In actual application, it is easy for external dust to adhere to the liquid crystal screen and the front and rear Fresnel lenses, resulting in a blurred projection image. When using an airtight cavity to wrap the key liquid crystal screen and the front and rear Fresnel lenses and then using heat dissipation fins for internal and external heat dissipation technology, the volume of the heat dissipation fins is relatively large, making the entire projector heavy and not convenient to carry. Therefore, an ultra-thin projector with a split heat dissipation layout is provided to solve the above problems. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an ultra-thin projector with a split heat dissipation layout, which solves the problems that when cooling by direct blowing of a fan, it is easy for external dust to adhere to the liquid crystal screen and the front and rear Fresnel lenses, and when using an airtight cavity to wrap the key liquid crystal screen and the front and rear Fresnel lenses and then using heat dissipation fins for internal and external heat dissipation technology, the volume of the heat dissipation fins is relatively large, making the entire projector heavy and not convenient to carry.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: An ultra-thin projector with a split heat dissipation layout, including a housing body, a projection lens is installed at the front end of the housing body, a projection optical engine is arranged inside the housing body, and a heat dissipation mechanism is arranged between the projection optical engine and the projection lens;

[0006] The heat dissipation mechanism includes;

[0007] A sealed heat dissipation chamber, which is connected between the projection optical engine and the projection lens;

[0008] An axial flow fan, which is fixedly installed at the inner bottom of the sealed heat dissipation chamber, and the axial flow fan is used to accelerate the air circulation inside the sealed heat dissipation chamber;

[0009] Main heat dissipation fins, which are used for heat exchange of the air accelerated inside the sealed heat dissipation chamber;

[0010] The main heat dissipation fins include horizontal heat absorption fins and vertical external heat dissipation fins;

[0011] The horizontal heat absorption fins and the vertical external heat dissipation fins are installed separately, and a heat exchange connecting pipe is installed between them;

[0012] The horizontal heat absorption fins are connected to the output end of the axial flow fan,

[0013] The vertical external heat dissipation fins are erected on one side of the projection lens.

[0014] Preferably, the projection optical machine includes a light source component fixed in the outer housing, a front Fresnel lens, a liquid crystal screen and a rear Fresnel lens are sequentially installed at the front end of the light source component, and a dichroic mirror is fixedly installed between the rear Fresnel lens and the projection lens.

[0015] Preferably, the front Fresnel lens, the liquid crystal screen, the rear Fresnel lens and the dichroic mirror are all placed inside the sealed heat dissipation chamber.

[0016] Preferably, the heat dissipation mechanism further includes;

[0017] A heat dissipation fan, which is fixedly arranged at the front end of the projection optical machine;

[0018] Auxiliary heat dissipation fins, which are fixedly installed on the side wall of the sealed heat dissipation chamber;

[0019] Light source heat dissipation fins, which are fixedly installed on the side of the light source component.

[0020] Preferably, a support base is fixedly installed on one side of the bottom of the sealed heat dissipation chamber, and the heat exchange connecting pipe passes through the inside of the support base.

[0021] Preferably, an exhaust groove is provided on one side of the outer housing, and a detachable exhaust grille is installed inside the exhaust groove.

[0022] 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.

[0023] The utility model discloses an ultra-thin projector with a split heat dissipation layout, and the beneficial effects thereof are as follows: The device is provided with a sealed heat dissipation chamber between the projection optical machine and the projection lens, and an axial flow fan is arranged inside the sealed heat dissipation chamber to accelerate the internal air circulation. Then, a main heat dissipation fin and a secondary heat dissipation fin are installed on the side wall of the sealed heat dissipation chamber for internal and external heat exchange, so as to avoid the influence of dust on internal components during cooling. At the same time, the main heat dissipation fin is installed in a split manner, a horizontal heat absorption fin is arranged at the bottom inside the sealed heat dissipation chamber, and a vertical external heat dissipation fin is arranged on the side of the projection lens. The two are connected by a heat exchange connecting pipe, so as to meet the requirements of efficient internal and external heat dissipation while rationally utilizing the internal space layout of the outer shell, making the whole projector ultra-thin in design and convenient to carry. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 Schematic diagram of the overall outer surface structure of the present utility model;

[0026] Figure 2 Schematic diagram of the overall back structure of the present utility model;

[0027] Figure 3 Schematic diagram of the outer surface structure of the sealed heat dissipation chamber of the present utility model;

[0028] Figure 4 Schematic diagram of the projection optical machine structure of the present utility model;

[0029] Figure 5 Schematic diagram of the internal structure of the heat dissipation mechanism of the present utility model;

[0030] Figure 6 Schematic diagram of the bottom structure of the heat dissipation mechanism of the present utility model.

[0031] In the figure: 1, outer shell; 2, projection lens; 3, button switch; 4, interface module; 5, exhaust groove; 6, exhaust grille; 7, projection optical machine; 71, light source component; 72, front Fresnel lens; 73, liquid crystal screen; 74, rear Fresnel lens; 75, 45-degree reflector; 8, heat dissipation mechanism; 81, heat dissipation fan; 82, sealed heat dissipation chamber; 83, secondary heat dissipation fin; 84, axial flow fan; 85, main heat dissipation fin; 851, horizontal heat absorption fin; 852, vertical external heat dissipation fin; 853, support base; 854, heat exchange connecting pipe; 86, light source heat dissipation fin. Detailed implementation mode

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] By providing a thin and ultra-thin projector with a split heat dissipation layout in the embodiments of the present application, the problem that when cooling by direct blowing of a fan, it is easy for external dust to adhere to the liquid crystal screen and the front and rear Fresnel lenses, and when using a sealed cavity to wrap the key liquid crystal screen and the front and rear Fresnel lenses and then using heat dissipation fins for internal and external heat dissipation technology, the volume of the heat dissipation fins is large, making the whole projector thick and heavy and not easy to carry is solved.

[0034] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the specification drawings and specific implementation modes.

[0035] The embodiments of the present utility model disclose a thin and ultra-thin projector with a split heat dissipation layout.

[0036] According to the attached Figures 1-6 As shown, it includes a housing 1 and a projection lens 2 installed at the front end of the housing 1. 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, an exhaust groove 5 is provided on one side of the housing 1, and a detachable exhaust grille 6 is installed inside the exhaust groove 5;

[0037] A projection optical machine 7 is arranged inside the housing 1. The projection optical machine 7 includes a light source component 71 fixed in the housing 1. The output end of the light source component 71 is sequentially facing and installed with a front Fresnel lens 72, a liquid crystal screen 73, a rear Fresnel lens 74 and a 45-degree reflecting mirror 75. The front Fresnel lens 72, the liquid crystal screen 73, the rear Fresnel lens 74 and the 45-degree reflecting mirror 75 are all placed inside a sealed heat dissipation chamber 82. During use, the light source component 71 emits light, projects the display content on the liquid crystal screen 73 onto the 45-degree reflecting mirror 75, and then reflects it onto the projection lens 2 for external projection;

[0038] A heat dissipation mechanism 8 is provided between the projection optical machine 7 and the projection lens 2. The heat dissipation mechanism 8 includes a heat dissipation fan 81 installed on one side of the light source component 71. A sealed heat dissipation chamber 82 is connected to wrap between the projection optical machine 7 and the projection lens 2. Auxiliary heat dissipation fins 83 are fixedly installed on the side wall of the sealed heat dissipation chamber 82. An axial flow fan 84 is fixedly installed at the inner bottom of the sealed heat dissipation chamber 82. The axial flow fan 84 is used to accelerate the air circulation inside the sealed heat dissipation chamber 82. The main heat dissipation fins 85 are used for heat exchange of the air accelerated inside the sealed heat dissipation chamber 82. The light source heat dissipation fins 86 are fixedly installed on the side of the light source component 71 for dissipating heat from the light source component 71. The auxiliary heat dissipation fins 83 are located above the axial flow fan 84. The main heat dissipation fins 85 are installed at the output end of the axial flow fan 84.

[0039] An axial flow fan 84 is arranged inside the sealed heat dissipation chamber 82 to accelerate the internal air circulation, and then the main heat dissipation fins 85 and the auxiliary heat dissipation fins 83 are installed on the side wall of the sealed heat dissipation chamber 82 for internal and external heat exchange, so as to avoid the influence of dust on internal components during cooling.

[0040] The main heat dissipation fins 85 include a horizontal heat absorption fin 851 installed inside the sealed heat dissipation chamber 82 and a vertical external heat dissipation fin 852 installed outside the sealed heat dissipation chamber 82. The horizontal heat absorption fin 851 faces the output end of the axial flow fan 84. The horizontal heat absorption fin 851 and the vertical external heat dissipation fin 852 are connected by a heat exchange connecting pipe 854. A support base 853 is arranged on the outer surface of the heat exchange connecting pipe 854. The horizontal heat absorption fin 851 is horizontally arranged at the inner bottom of the sealed heat dissipation chamber 82. The vertical external heat dissipation fin 852 is vertically placed on one side of the projection lens 2. The heat dissipation fan 81 faces the exhaust grille 6.

[0041] The main heat dissipation fins 85 are installed in a split manner. The horizontal heat absorption fin 851 is arranged at the inner bottom of the sealed heat dissipation chamber 82, and the vertical external heat dissipation fin 852 is arranged on the side of the projection lens 2. The two are connected by a heat exchange connecting pipe 854. In this way, while meeting the requirements of efficient internal and external heat dissipation, the internal space layout of the outer shell 1 is rationally utilized, making the whole projector have an ultra-thin design and being convenient to carry.

[0042] 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. What is described in the above embodiments and the specification only illustrates 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 ultra-thin projector with a split heat dissipation layout, comprising a housing (1), a projection lens (2) is installed at the front end of the housing (1), and a projection optical machine (7) is arranged inside the housing (1), characterized in that, A heat dissipation mechanism (8) is provided between the projection optical machine (7) and the projection lens (2); The heat dissipation mechanism (8) includes; A sealed heat dissipation chamber (82), which is connected between the projection optical machine (7) and the projection lens (2); An axial flow fan (84), which is fixedly installed at the inner bottom of the sealed heat dissipation chamber (82), and the axial flow fan (84) is used to accelerate the air circulation inside the sealed heat dissipation chamber (82); Main heat dissipation fins (85), which are used for heat exchange of the air accelerated inside the sealed heat dissipation chamber (82); The main heat dissipation fins (85) include a horizontal heat absorption fin (851) and a vertical external heat dissipation fin (852); The horizontal heat absorption fin (851) and the vertical external heat dissipation fin (852) are installed in a split manner, and a heat exchange connection pipe (854) is installed between them; The horizontal heat absorption fin (851) is connected to the output end of the axial flow fan (84), The vertical external heat dissipation fin (852) is erected on one side of the projection lens (2).

2. The ultra-thin projector with a split heat dissipation layout according to claim 1, wherein: The projection optical machine (7) includes a light source component (71) fixed in the outer housing (1), and a front Fresnel lens (72), a liquid crystal screen (73) and a rear Fresnel lens (74) are sequentially installed at the front end of the light source component (71), and a 45-degree reflecting mirror (75) is fixedly installed between the rear Fresnel lens (74) and the projection lens (2).

3. The ultra-thin projector with a split heat dissipation layout according to claim 2, wherein: The front Fresnel lens (72), the liquid crystal screen (73), the rear Fresnel lens (74) and the 45-degree reflecting mirror (75) are all placed inside the sealed heat dissipation chamber (82).

4. The ultra-thin projector with a split heat dissipation layout according to claim 3, wherein: The heat dissipation mechanism (8) further includes; A heat dissipation fan (81), which is fixedly arranged at the front end of the projection optical machine (7); Auxiliary heat dissipation fins (83), which are fixedly installed on the side wall of the sealed heat dissipation chamber (82); Light source heat dissipation fins (86), which are fixedly installed on the side of the light source component (71).

5. The ultra-thin projector with a split heat dissipation layout according to claim 1, characterized in that: A support base (853) is fixedly installed on one side of the bottom of the sealed heat dissipation chamber (82), and the heat exchange connection pipe (854) passes through the inside of the support base (853).

6. The ultra-thin projector with a split heat dissipation layout according to claim 1, characterized in that: An exhaust groove (5) is provided on one side of the outer housing (1), and a detachable exhaust grille (6) is installed inside the exhaust groove (5).

7. The ultra-thin projector with a split heat dissipation layout according to claim 1, characterized in that: 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), and the button switch (3) and the interface module (4) are both electrically connected to the projection optical machine (7).

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