Projector with rapid heat dissipation function

Abstract

The utility model discloses a projector with a rapid heat dissipation function, which comprises a heat dissipation structure and an air draft assembly which are arranged on two sides in a shell, and a projection lens, an optical machine and a light source assembly which are arranged on the heat dissipation structure, and is characterized in that the projection lens and the light source assembly are respectively arranged on two sides of the optical machine; the heat dissipation structure comprises an isolation shell provided with a cavity, a forked air duct arranged in the cavity and at least one internal fan. The isolation shell is provided with a plurality of first air blowing openings communicated with the forked air channels, the internal draught fan is communicated with the first air blowing openings through the forked air channels and conducts heat dissipation on each three-color panel in the optical machine, the internal draught fan is close to the three-color panels and is arranged in the cavity, and a heat dissipation channel is formed between the isolation shell and the air draft assembly. The air draft assembly exhausts heat dissipation air blown out of the first air blowing opening through the heat dissipation channel. Air can be shunted through the forked air duct, so that a three-color panel in an optical machine is directly blown to quickly dissipate heat and cool down, the optical machine in a projector is protected from being damaged due to too high temperature, and the service life of the optical machine is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of projection equipment, and in particular to a projector with a rapid heat dissipation function. Background Art

[0002] When the projector is working, the internal core components, the optical machine and light source assembly, will generate heat. Failure to dissipate heat in time will cause damage (such as the red, green and blue panels in the optical machine). Existing projectors set heat conducting plates on the heating components to transfer heat to the cooling fins through heat pipes, and the cooling fins are cooled by fans. This cooling method has poor cooling effect, which will shorten the service life of the core components. Summary of the invention

[0003] The present application provides a projector with a rapid heat dissipation function to solve the problem of poor heat dissipation effect of existing projectors, and adopts the following technical solutions:

[0004] A projector with a rapid heat dissipation function comprises a heat dissipation structure and an exhaust assembly arranged on both sides of a shell, and a projection lens, an optical machine and a light source assembly arranged on the heat dissipation structure, wherein the projection lens and the light source assembly are respectively arranged on both sides of the optical machine; the heat dissipation structure comprises an isolation shell provided with a cavity, a forked air duct arranged in the cavity and at least one internal fan, the isolation shell is provided with a plurality of blowing ports one connected to the forked air duct, the forked air duct is arranged in the cavity, the internal fan is connected to the blowing port one through the forked air duct, directly blows a three-color panel in the optical machine to dissipate heat, the internal fan is arranged in the cavity close to the three-color panel, a heat dissipation channel is formed between the isolation shell and the exhaust assembly, and the exhaust assembly discharges the heat dissipating air blown out of the blowing port one through the heat dissipation channel.

[0005] Preferably, the internal fan comprises internal fan one and internal fan two, and the internal fan one and the internal fan two are connected to the blowing outlet one through the forked air duct, and the blowing outlet one is 3n in number, where n is the number of blowing outlets one for dissipating heat for any panel in the three-color panels, 1≤n≤4, and the blowing outlet one is correspondingly arranged at the bottom of the three-color panel.

[0006] Further preferably, it also includes an internal fan three, and the isolation shell is also provided with at least one blowing port two and an air duct connected to the blowing port two, and the internal fan three is connected to the air duct to dissipate heat from the light source assembly.

[0007] Further preferably, the internal fan one and the internal fan two are arranged opposite to each other, and the internal fan three is arranged on one side of the internal fan two.

[0008] Preferably, it also includes a partition and a control main board, the partition is arranged between the isolation shell and the exhaust assembly to divide the channel into a first heat dissipation channel and a second heat dissipation channel, and the control main board is arranged in the partition; the first heat dissipation channel can dissipate heat for other heat-generating components arranged in the shell, and the second heat dissipation channel can dissipate heat for the control main board, thereby ensuring that the internal components of the projector will not burn out and improving the working stability.

[0009] Further preferably, the first heat dissipation channel and the second heat dissipation channel correspond to the air exhaust component.

[0010] Preferably, an air inlet is provided on one side of the isolation shell, and a detachable dustproof component is provided at the air inlet, and the dustproof component and the shell seal the cavity.

[0011] Further preferably, noise reduction grilles are provided on the outer sides of the air inlet and the air exhaust assembly to reduce the noise at the air inlet and the air outlet.

[0012] Preferably, the shell is further provided with an air outlet, and the air outlet is arranged on the side opposite to the air inlet and opposite to the air exhaust component.

[0013] The beneficial effects of this application are:

[0014] (1) A forked air duct connecting multiple air outlets is provided in the cavity, and the air outlets correspond to the three-color panels in the optical machine. The internal fan is arranged in the cavity close to the three-color panels to shorten the length of the forked air duct so that cold air can quickly enter the shell to dissipate the heat of the three-color panels. The forked air duct is connected to at least one internal fan to supply air to the air outlet. The forked air duct can divert the cold air and blow directly to the three-color panels to quickly dissipate the heat, thereby improving the heat dissipation efficiency, ensuring that the optical machine will not be damaged due to excessive temperature, and increasing the service life.

[0015] (2) Air vents 1 and 2 extend to the bottom of the three-color panel and the bottom of the light source assembly in the optical machine, which can dissipate heat at the heat-generating parts. The exhaust assembly and the isolation shell are respectively arranged on both sides of the shell. When working, the hot air drawn out by the exhaust assembly will not be sucked back into the shell through the air inlet, thereby further improving the heat dissipation effect of the projector.

[0016] (3) A dustproof component is provided at the air inlet. When the light machine body and the light assembly are dissipating heat, dust or impurities in the external air will not be sucked into the shell through the dustproof component, thereby effectively preventing dust from falling on the light machine body and affecting its operation, thereby improving the brightness of the light machine.

[0017] (4) The shell and dustproof assembly seal the cavity, which can reduce the noise of the internal fan when it is working. Noise reduction grilles are provided on the outside of the air inlet and exhaust assembly to reduce the noise at the air inlet and outlet. The dustproof net has a wavy structure, which can further reduce the noise when the projector is working.

[0018] (5) While the light source and the light source assembly are dissipating heat, a partition is provided to divide the heat dissipation channel into a first heat dissipation channel outside the partition and a second heat dissipation channel inside the partition. The exhaust assembly is arranged opposite to the heat dissipation channel. The air passing through the second heat dissipation channel can dissipate heat for the control main board, thereby preventing the main board from being burned out due to excessive temperature and improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of this application;

[0020] Figure 2 It is a three-dimensional schematic diagram of the heat dissipation structure of the present application;

[0021] Figure 3 It is a schematic diagram of the internal structure of the heat dissipation structure of the present application;

[0022] Figure 4 It is a schematic diagram of air flow in this application;

[0023] Figure 5 It is a three-dimensional schematic diagram of the second heat dissipation channel of the present application;

[0024] Figure 6 It is a partial enlarged view of point A of this application.

[0025] In the figure:

[0026] 1. Shell, 11. Partition, 12. First heat dissipation channel, 13. Second heat dissipation channel, 2. Projection lens, 3. DMD chip, 4. Heat dissipation structure, 40. Isolation shell, 400. Air outlet one, 401. Air outlet two, 402. Main air duct, 403. Branch air duct, 41. Internal fan one, 410. Air duct, 42. Internal fan two, 43. Cavity, 44. Air inlet, 45. Internal fan three, 5. Exhaust assembly, 6. Dust-proof assembly, 60. Support frame, 61. Filter, 7. Control main board, 8. Noise reduction grille, 9. Air outlet. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0028] See also Figures 1 to 6 , the application is further described, a projector with a rapid heat dissipation function includes a heat dissipation structure 4 and an exhaust assembly 5 arranged on both sides of a shell 1, and a projection lens 2, an optical machine (not shown) and a light source assembly (not shown) arranged on the heat dissipation structure 4, the projection lens 2 and the light source assembly are respectively arranged on both sides of the optical machine, the optical machine includes an optical machine body (not shown) and a DMD chip 3, the DMD chip 3 is arranged between the optical machine body and the projection lens 2, and the light source assembly provides a light source for the optical machine.

[0029] Combination Figure 3 and Figure 6 The heat dissipation structure 4 includes an isolation shell 40 provided with a cavity 43, and a forked air duct and at least one internal fan arranged in the cavity 43. The isolation shell 40 is provided with a blowing port 400 connected to the forked air duct. The forked air duct is arranged in the cavity 43. The internal fan is connected to the forked air duct, and the three-color panel (not shown) in the optical machine is directly blown through the blowing port 400 for heat dissipation. The internal fan is arranged at the bottom of the optical machine close to the three-color panel, which can shorten the length of the forked air duct, and can quickly transport the external cold air to the shell 1 to dissipate the heat of the three-color panel, thereby improving the heat dissipation efficiency of the three-color panel; a heat dissipation channel is formed between the isolation shell 40 and the exhaust component 5, and the exhaust component 5 discharges the heat dissipation air blown out of the blowing port 400 through the heat dissipation channel; in this embodiment, the exhaust component 5 is a fan, and there are three fans.

[0030] Combination Figure 3 The internal fan includes an internal fan 41 and an internal fan 42 connected to the bifurcated air duct, and the internal fan 41 and the internal fan 42 are connected to the blowing port 400 through the bifurcated air duct. The blowing port 400 corresponds to the three-color panels (red, green and blue liquid crystal panels) respectively. The blowing port 400 is 3n in number and blows directly to the three-color panels, wherein n is the number of the blowing ports 1 for dissipating heat for any of the three-color panels, 1≤n≤4, and the blowing port 1 is correspondingly arranged at the bottom of the three-color panel; in this embodiment, n is 2.

[0031] Combination Figure 6, if the three-color panel is not cooled in time during operation, the optical machine may be easily damaged; the internal fan includes an internal fan 41 and an internal fan 42 connected to the forked air duct, and the internal fan 41 and the internal fan 42 are respectively connected to a main air duct 402 and a branch air duct 403 in the forked air duct. In this embodiment, there are two main air ducts 402 and two branch air ducts 403; the two main air ducts 403 are respectively connected to the blowing port 1 400 corresponding to one of the liquid crystal panels, and the two branch air ducts 403 are connected to the blowing port 1 400 corresponding to the remaining liquid crystal panel, so as to directly blow and dissipate heat for the red liquid crystal panel, the green liquid crystal panel and the blue liquid crystal panel in the optical machine, wherein the forked air duct can be sealed by a sealing shell or / and sealed by fitting with the bottom of the shell 1.

[0032] It also includes an internal fan three 45. The isolation shell 40 is provided with at least one blowing port two. The blowing port two is connected to the internal fan three 45 through an air duct. In this embodiment, there is one blowing port two, and the internal fan three 45 independently blows air to dissipate heat from the light source assembly.

[0033] External cold air is transported into the shell 1 through the blowing port 1 400 and the blowing port 2 401, and the blowing port 1 400 and the blowing port 2 401 extend to the bottom of the optical machine and the light source assembly, and blow directly to the heat-generating parts to achieve a rapid heat dissipation effect, greatly reduce the temperature of the three-color panel inside the optical machine, avoid thermal defocusing and the occurrence of plastic lens burns, and at the same time reduce the dirt of the optical lens and improve the brightness of the optical machine. After the heat dissipation is completed, the exhaust assembly 5 discharges the hot air from the shell 1 through the channel to achieve rapid cooling.

[0034] Combination Figure 2 , in order to ensure that impurities in the air do not enter the shell 1 and affect the projection effect of the projector; a detachable dustproof component 6 is provided at the air inlet 44, and the dustproof component 6 and the shell 1 seal the cavity 43, and a card slot (not shown) for fixing the dustproof component 6 is provided at the air inlet 44; when working, since the heat dissipation structure 4 is arranged inside the cavity 43, the noise of the heat dissipation structure 4 can be effectively reduced.

[0035] The dustproof component 6 includes a support frame 60 and a filter 61, the filter 61 is arranged in the support frame 60, the support frame 60 is provided with a protrusion (not shown), the protrusion is arranged in the card slot to fix the dustproof component 6, the filter 61 has a wavy structure, the wavy structure can reflect and absorb sound waves, further reduce noise, and at the same time can increase the area of ​​the filter 61, enhance the filtering effect, and prevent external dust from entering the shell 1, affecting the optical machine and causing unclear projection.

[0036] Combination Figure 1 and Figure 2 The air inlet 44 and the air exhaust component 5 are both provided with noise reduction grilles 8 on the outside, and the shell 1 is provided with an air outlet 9 corresponding to the air exhaust component 5. The noise reduction grilles 8 can rectify and guide the airflow at the air inlet 44 and the air outlet 9, reduce the impact and turbulence of the airflow, and thus further reduce the noise.

[0037] Combination Figure 5 , also includes a partition 11 and a control mainboard 7, the partition 11 is arranged between the isolation shell 40 and the exhaust component 5, and the heat dissipation channel is divided into a first heat dissipation channel 12 outside the partition 11 and a second heat dissipation channel 13 inside the partition 11, the control mainboard 7 is arranged in the partition 11, and the air entering the shell 1 from the air outlet 20 is cooled to the inside of the shell 1 and the control mainboard 7 through the first heat dissipation channel 12 and the second heat dissipation channel 13, and the air with heat is led out of the shell 1 through the exhaust component 5, wherein the first heat dissipation channel 12 and the second heat dissipation channel 13 correspond to the exhaust component 5, and the fan corresponding to the second heat dissipation channel 13 can accelerate the flow rate of air in the partition 11, so that the exhaust component 5 can better lead the air in the shell 1 out, and while dissipating the heat to the optical machine and the light source assembly, the control mainboard 7 in the shell 1 and other heat-generating components can be cooled, so that the projector has good stability during operation and extends its service life.

[0038] Combination Figure 4 When in use, the heat dissipation structure 4 sucks in cold air outside the shell 1 and blows out the cold air from the air outlet 20 to dissipate heat from the heating parts (such as the three-color panel and light source components in the optical machine, etc.). The exhaust component 5 draws the air after the heat dissipation of the heating parts out of the shell 1 from the first heat dissipation channel 12 and the second heat dissipation channel 13, and at the same time cools the control mainboard 7 and other components.

[0039] The air inlet 44 and the air outlet 9 are respectively arranged on opposite sides of the shell 1. When the projector is working, the air inhaled by the air inlet 44 will not interfere with the air discharged from the air outlet 9, which can effectively prevent the hot air discharged from the air outlet 9 from being sucked into the shell 1 from the air inlet 44 to dissipate the heat at the heat-generating parts, thereby improving the heat dissipation effect.

Claims

1. A projector with rapid heat dissipation function, characterized in that: It includes a heat dissipation structure and an exhaust assembly arranged on both sides of the shell, and a projection lens, an optical machine and a light source assembly arranged on the heat dissipation structure, the projection lens and the light source assembly are respectively arranged on both sides of the optical machine; the heat dissipation structure includes an isolation shell provided with a cavity, a forked air duct arranged in the cavity, and at least one internal fan; the isolation shell is provided with a plurality of blowing ports one connected to the forked air duct, the forked air duct is arranged in the cavity, the internal fan is connected to the blowing port one through the forked air duct, directly blows the three-color panel in the optical machine to dissipate heat, the internal fan is arranged in the cavity close to the three-color panel, a heat dissipation channel is formed between the isolation shell and the exhaust assembly, and the exhaust assembly discharges the heat dissipating air blown out of the blowing port one through the heat dissipation channel.

2. The projector with rapid heat dissipation function according to claim 1, characterized in that: The internal fan includes internal fan 1 and internal fan 2, and the internal fan 1 and the internal fan 2 are connected to the blowing port 1 through the forked air duct. The blowing port 1 is 3n in number, where n is the number of the blowing ports 1 for dissipating heat for any panel in the three-color panel, 1≤n≤4, and the blowing port 1 is correspondingly arranged at the bottom of the three-color panel.

3. The projector with rapid heat dissipation function according to claim 1, characterized in that: It also includes an internal fan three. The isolation shell is also provided with at least one blowing port two and an air duct connected to the blowing port two. The internal fan three is connected to the air duct to dissipate heat for the light source assembly.

4. The projector with rapid heat dissipation function according to claim 3, characterized in that: The internal fan 1 and the internal fan 2 are arranged opposite to each other, and the internal fan 3 is arranged on one side of the internal fan 2.

5. The projector with rapid heat dissipation function according to claim 1, characterized in that: It also includes a partition and a control mainboard. The partition is arranged between the isolation shell and the exhaust assembly to divide the channel into a first heat dissipation channel and a second heat dissipation channel. The control mainboard is arranged in the partition.

6. The projector with rapid heat dissipation function according to claim 5, characterized in that: The first heat dissipation channel and the second heat dissipation channel correspond to the air exhaust component.

7. The projector with rapid heat dissipation function according to claim 1, characterized in that: An air inlet is arranged on one side of the isolation shell, and a detachable dustproof component is arranged at the air inlet. The dustproof component and the shell seal the cavity.

8. The projector with rapid heat dissipation function according to claim 7, characterized in that: Noise reduction grilles are provided on the outsides of the air inlet and the air exhaust assembly.

9. The projector with rapid heat dissipation function according to claim 7, characterized in that: The shell is also provided with an air outlet, and the air outlet is arranged on a side opposite to the air inlet and opposite to the air exhaust component.

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