Heat dissipation structure of laser projector

Abstract

The utility model discloses a laser projector heat dissipation structure which comprises a shell with a containing cavity, a projector body, a power source assembly, a heat dissipation assembly, an air blowing assembly, a first laser light source and a second laser light source, and a first channel, a second channel and a third channel which surround the projector body are formed in the containing cavity. The second channel and the third channel are perpendicular to the first channel, the power source assembly is arranged in the first channel, the heat dissipation assemblies are arranged in the positions, away from one side of the air blowing assembly, of the second channel and the third channel respectively and used for dissipating heat of the first laser light source and the second laser light source, and the air blowing assembly feeds air into the first channel and conveys the air to the second channel and the third channel. The exhaust fan corresponds to the second channel and the third channel to form a heat dissipation loop, hot air subjected to heat dissipation can be rapidly exhausted out of the shell, heat dissipation of the first laser light source and the second laser light source can be achieved, meanwhile, heat dissipation can be conducted on other parts needing heat dissipation, the heat dissipation efficiency is high, and the heat dissipation efficiency is high. And the projector is compact in overall structure and convenient to reduce the overall size.

Description

Technical Field

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

[0002] Compared with traditional projectors, laser projectors use laser as the light source. When working, the laser light source will generate more heat than the traditional light source. Since the light source is the main heat-generating component in the projection system, once the heat dissipation effect of the projector is poor, the laser light source, light output component or circuit may be damaged or the life span may be shortened. Therefore, a good heat dissipation design is particularly important. The existing laser projector is equipped with a fan on one side of the shell exhaust port, and the heat sink is arranged at the air inlet and connected to the optical engine. The fan drives the air flow inside the projector to achieve the heat dissipation effect. This heat dissipation method cannot quickly discharge the cooled air, not only the heat dissipation effect is poor, but also the hot air cooled by the heat sink will affect the operation of other components when it is discharged. Utility Model Content

[0003] The present application provides a laser projector heat dissipation structure to solve the problem of poor heat dissipation effect of the above-mentioned laser projector, and adopts the following technical solutions:

[0004] A laser projector heat dissipation structure comprises a housing provided with a cavity, wherein a projector body and a power supply component for power supply are provided in the cavity;

[0005] The projector body includes an optical machine and a projection part, an integrated component is arranged in the optical machine, a laser light source 1 and a laser light source 2 are arranged on the optical machine housing, a channel 1 is arranged on one side of the projector body, and a channel 2 and a channel 3 are perpendicular to the channel 1, and the power supply component is arranged in the channel 1;

[0006] A blowing assembly, the blowing assembly comprising a fan 1 and a fan 2 arranged at both ends of the channel 1, the fan 2 being arranged obliquely between the channel 1 and the channel 2, and a splitter plate being arranged on the fan 2 for splitting the air and blowing it toward the channel 2 and the channel 3;

[0007] A heat dissipation component is arranged in the channel two and the channel three on the side away from the blowing component, and is used to dissipate heat from the laser light source one and the laser light source two; an exhaust fan is arranged on the outside of the heat dissipation component, and the exhaust fan is used to exhaust the air in the channel two and the channel three.

[0008] Preferably, the heat dissipation assembly includes a heat sink 1 disposed in the channel 2 and connected to the laser light source 1, and a heat sink 2 disposed in the channel 3 and connected to the laser light source 2.

[0009] Preferably, a bracket one is provided in the channel one, and the power supply component is provided in the bracket one; a bracket two is provided in the channel two, and a fan three and the heat dissipation component are provided at two ends of the bracket two respectively.

[0010] Further preferably, the heat dissipation component further includes a heat sink three and a plurality of heat sinks four, the heat sink three is arranged in the channel two to connect the integrated component, and the heat sinks four are respectively arranged on the outside of the optical machine housing.

[0011] Further preferably, the radiator 1, the radiator 2 and the radiator 3 all include a heat conducting plate, a plurality of heat pipes and a heat sink, the heat conducting plates are respectively arranged on the laser light source 1, the laser light source 2 and the integrated component, and are connected to the heat sink through the heat pipes, and the radiator 4 is a heat sink.

[0012] Further preferably, the heat sinks are arranged parallel to the second channel.

[0013] Preferably, it also includes a circuit board, which is arranged on the second channel, and a bracket three is arranged between the circuit board and the third radiator to form a heat dissipation gap between the bracket three and the circuit board.

[0014] Preferably, the shell is provided with a plurality of air inlets corresponding to the fan one, the fan two and the channel three, and an air exhaust port corresponding to the exhaust fan.

[0015] Preferably, it also includes an audio component, and the audio component is arranged in the channel three.

[0016] The beneficial effects of this application are:

[0017] (1) Channel 1, Channel 2 and Channel 3 are provided in the cavity surrounding the projector body, and Channel 2 and Channel 3 are perpendicular to Channel 1. Fan 1 blows air through Channel 1 to Fan 2, and Fan 2 is obliquely arranged between Channel 1 and Channel 2 and blows air to Channel 2 and Channel 3, respectively and independently dissipating the heat sink in each channel to prevent the mixing of the dissipated air, thereby affecting the heat dissipation effect. The heat dissipation component is arranged close to the exhaust fan, which can quickly dissipate the hot air to improve the heat dissipation effect of the laser light source.

[0018] (2) Fan 3 is also provided in channel 2. Fan 3 can blow fan 1 toward channel 2 to speed up the heat dissipation of the radiator. Brackets 2 and 3 divide channel 2 into multiple independent air ducts to dissipate heat for different heat-generating components. While ensuring the heat dissipation effect for the laser light source, other heat-generating components can also be cooled, thereby increasing the overall service life of the laser projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a three-dimensional structural schematic diagram of the present application;

[0020] Figure 2 is a top view of the present application;

[0021] Figure 3 It is a schematic diagram of the first three-dimensional structure of the heat dissipation group of the present application;

[0022] Figure 4 It is a second three-dimensional structural schematic diagram of the heat dissipation group of the present application;

[0023] Figure 5 It is a schematic diagram of air flow in the heat dissipation circuit of the laser projector of the present application.

[0024] In the figure:

[0025] 1. Shell, 11. Cavity, 12. Air inlet, 13. Exhaust outlet, 2. Optical machine, 21. Integrated component, 3. Laser light source one, 3a. Radiator one, 4. Laser light source two, 4a. Radiator two, 5. Radiator three, 6. Power supply component, 61. Fan one, 62. Fan two, 63. Fan three, 64. Diverter plate, 7. Circuit board, 8. Exhaust fan, 9. Radiator four, 100. Channel one, 101. Bracket one, 200. Channel two, 201. Bracket two, 202. Bracket three, 300. Channel three. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figures 1 to 5 As shown, the present application is further described, a heat dissipation structure of a laser projector, comprising a housing 1 provided with a cavity 11, wherein a projector body and a power supply assembly 3 for power supply are provided in the cavity 11; a channel 1 100, a channel 2 200 and a channel 3 300 are provided in the cavity 11, the projector body is provided in the channel 2 200 and the channel 3 300, the channel 1 100 is located at one side of the projector body, the channel 2 200 and the channel 3 300 are perpendicular to the channel 1 100, and the power supply assembly 6 is provided in the channel 1 100;

[0028] The projector body includes an optical machine 2 and a projection part (not shown), an integration component 21 is provided inside the optical machine 2, and a laser light source 1 3 and a laser light source 2 4 are provided on the outer shell of the optical machine 2; wherein the laser light source 1 3 and the laser light source 2 4 are transmitted to the integration component 21 through the internal optical components of the optical machine 2 (not shown), and the processed projection light beam is transmitted to the projection part for projection through the integration component 21;

[0029] A blowing assembly, the blowing assembly includes a fan 1 61 and a fan 2 62 arranged at both ends of the channel 1 100, the fan 2 62 is obliquely arranged between the channel 1 100 and the channel 2 200, and a splitter plate 64 is provided on the fan 2 for splitting the air and blowing it toward the channel 2 200 and the channel 3 300;

[0030] A heat dissipation component is arranged in the channel two 200 and the channel three 300 on the side away from the blowing component, and is used to dissipate heat from the laser light source one 3 and the laser light source two 4; an exhaust fan 8 is provided on the outside of the heat dissipation component, and the exhaust fan 8 is used to exhaust the air in the channel two 200 and the channel three 300. In this embodiment, there are two exhaust fans 8.

[0031] Combination Figure 1 and Figure 2 The shell 1 is provided with an exhaust port 13 and a plurality of air inlets 12, the air inlet 12 is correspondingly connected to the fan 1 61, the fan 2 62 and the channel 3 300, and the exhaust port 13 is correspondingly connected to the exhaust fan 8; the heat dissipation component includes a radiator 1 3a and a radiator 2 4a, the radiator 1 3a and the radiator 2 4a are respectively arranged in the channel 2 200 and the channel 3 300 on the side away from the blowing component, after the air in the channel 2 200 and the channel 3 300 dissipates the heat to the radiator 1 3a and the radiator 2 4a, it can be quickly discharged from the exhaust port 13, thereby avoiding the long-term accumulation of hot air in the cavity 11 to affect the operation of other components, thereby improving the heat dissipation effect.

[0032] Combination Figure 2 The air inlet 12 may include air inlet 1, air inlet 2 and air inlet 3, the fan 1 61 corresponds to the air inlet 12 1, the fan 2 62 corresponds to the air inlet 12 2, and the air inlet 12 3 is connected to the channel 3 300; the external air is blown toward the fan 2 62 through the fan 1 61, and the inclined fan 2 62 diverts the air, blowing it toward the channel 2 200 and the channel 3 300 respectively, and then discharged through the exhaust fan 8.

[0033] Combination Figure 1A bracket 101 is provided in the channel 100, and the power supply component 6 is provided in the bracket 101. The bracket 101 guides air to the fan 2 62, so as to dissipate heat and cool down the power supply component 6. The fan 2 62 blows air to the channel 2 200 and the channel 3 300 respectively; a bracket 202 is provided in the channel 2 200, and fans 3 63 and the radiator 1 3a are provided at both ends of the bracket 2 202 respectively. The cooling fan 3 63 accelerates the flow rate in the bracket 2 202, and guides part of the air blown out by the fan 2 62 to the radiator 1 3a to dissipate heat for the radiator 1 3a. The air entering the channel 3 300 will flow to the radiator 2 4a for dissipation, and at the same time can dissipate heat for the projection part, so as to ensure the working temperature of the laser light source 1 3 and the laser light source 2 4.

[0034] Combination Figure 3 and Figure 4 In the projector, the integrated component 21 affects the quality of projection, wherein the integrated component is a DMD chip; the heat dissipation component also includes a heat sink three 5 and a plurality of heat sinks four 9, the heat sink four 9 is distributed on the outer side of the optical machine 2 housing, the heat sink three 5 is located in the channel two 200, and is connected to the integrated component 21, and is used to dissipate heat for the integrated component 21, thereby further improving the heat dissipation effect and the projection quality.

[0035] Combination Figure 4 When the projector is working, the optical components (such as color wheel, lens, reflector and side prism, etc.) in the optical machine 2 will work, which will increase the overall temperature of the outer shell of the optical machine 2. In order to ensure that the optical machine 2 works within a safe temperature, the outer shell of the optical machine 2 is provided with a heat sink four 9 for heat dissipation. The heat sink four 9 is respectively arranged on the outer side of the outer shell of the optical machine 2. The air entering the channel two 200 and the channel three 300 flows through the heat sink four 9, which can dissipate heat for the entire outer shell of the optical machine 2, thereby reducing the overall temperature of the optical machine 2.

[0036] The radiator 1 3a, the radiator 2 4a and the radiator 3 5 all include a heat conducting plate, a plurality of heat pipes and a heat dissipation group. The heat conducting plate is arranged on the laser light source 1 3, the laser light source 2 4 and the integrated component 21, and is connected to the heat dissipation group through the heat pipe. The radiator 4 9 and the heat dissipation group are both composed of heat sinks, and the heat sinks are arranged parallel to the channel 2 200 and the channel 3 300 to reduce the air flow resistance between the heat sinks and quickly take away the heat from the heat sinks. The heat pipes can be solid or hollow.

[0037] Combination Figure 1, and also includes a circuit board 7, which is arranged on the channel two 200. A bracket three 202 is provided between the circuit board 7 and the radiator three 5 to separate them. A heat dissipation gap is formed between the bracket three 202 and the circuit board 7. The air entering the channel two 200 can flow into the heat dissipation gap to dissipate the heat of the circuit board 7. The bracket three 202 can prevent the air dissipated by the radiator three 5 from mixing with the air dissipated in the heat dissipation gap, thereby affecting the heat dissipation effect.

[0038] In order to improve the playback quality of the laser projector, an audio component (not shown) is also provided. The audio component is arranged in the channel three 300. When the projector is working, the air in the channel three 300 can dissipate the heat of the audio component.

Claims

1. The heat dissipation structure of the laser projector is characterized by: It comprises a housing provided with a cavity, wherein a projector body and a power supply assembly for power supply are provided in the cavity; The projector body includes an optical machine and a projection part, an integrated component is arranged in the optical machine, a laser light source 1 and a laser light source 2 are arranged on the optical machine housing, a channel 1 is arranged on one side of the projector body, and a channel 2 and a channel 3 are perpendicular to the channel 1, and the power supply component is arranged in the channel 1; A blowing assembly, the blowing assembly comprising a fan 1 and a fan 2 arranged at both ends of the channel 1, the fan 2 being arranged obliquely between the channel 1 and the channel 2, and a splitter plate being arranged on the fan 2 for splitting the air and blowing it toward the channel 2 and the channel 3; A heat dissipation component is arranged in the channel two and the channel three on the side away from the blowing component, and is used to dissipate heat from the laser light source one and the laser light source two; an exhaust fan is arranged on the outside of the heat dissipation component, and the exhaust fan is used to exhaust the air in the channel two and the channel three.

2. The heat dissipation structure of a laser projector according to claim 1, characterized in that: The heat dissipation component includes a heat sink 1 which is arranged in the channel 2 and connected to the laser light source 1, and a heat sink 2 which is arranged in the channel 3 and connected to the laser light source 2.

3. The heat dissipation structure of a laser projector according to claim 1, characterized in that: A bracket one is arranged in the channel one, and the power supply component is arranged in the bracket one; a bracket two is arranged in the channel two, and a fan three and the heat dissipation component are arranged at two ends of the bracket two respectively.

4. The heat dissipation structure of a laser projector according to claim 2, characterized in that: The heat dissipation component also includes a heat sink three and a plurality of heat sinks four. The heat sink three is arranged in the channel two to connect the integrated component, and the heat sinks four are respectively arranged on the outside of the optical machine housing.

5. The heat dissipation structure of a laser projector according to claim 4, characterized in that: The radiator 1, the radiator 2 and the radiator 3 all include a heat conducting plate, a plurality of heat pipes and a heat sink. The heat conducting plates are respectively arranged on the laser light source 1, the laser light source 2 and the integrated component, and are connected to the heat sink through the heat pipe. The radiator 4 is a heat sink.

6. The heat dissipation structure of a laser projector according to claim 5, characterized in that: The heat sinks are arranged parallel to the second channel.

7. The heat dissipation structure of a laser projector according to claim 4, characterized in that: It also includes a circuit board, which is arranged on the second channel. A bracket three is provided between the circuit board and the third radiator to form a heat dissipation gap between the bracket three and the circuit board.

8. The heat dissipation structure of a laser projector according to claim 1, characterized in that: The shell is provided with a plurality of air inlets corresponding to the fan 1, the fan 2 and the channel 3, and an air exhaust port corresponding to the exhaust fan.

9. The heat dissipation structure of a laser projector according to claim 1, characterized in that: It also includes an audio component, which is arranged in the channel three.

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