Laser projector

Abstract

The laser projector comprises a shell with a cavity, at least one air blowing piece, a heat dissipation set, an air exhaust set, a projector body and a support, the projector body and the support are arranged in the cavity, and the projector body comprises a projection part, an integration part, an optical machine and a laser light source which are sequentially connected; the integration part is arranged on the support, at least one air duct communicated with the cavity is formed in the support, a first partition plate and a second partition plate are arranged on the two sides of the projector respectively, and a power supply assembly is arranged in the second partition plate; the blast piece is arranged in the support and communicated with the air duct; the heat dissipation set is arranged in the first partition plate and connected with the laser light source. The air exhaust set comprises a first fan and a second fan which are arranged at one end of the first partition plate and one end of the second partition plate respectively, and a third fan corresponding to the light machine, air entering the cavity flows into the integration part, the first partition plate and the second partition plate to dissipate heat of the power source assembly and the heat dissipation set, and then the air is led out through the air exhaust set. Heat flow after heat dissipation is prevented from affecting work of other parts, and the service life of the projector can be prolonged.

Description

Technical Field

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

[0002] Since the projector requires extremely high brightness when working, in order to ensure the brightness output, a high-power laser light source must be used. During the operation of the projector, various heat-generating components (optical machine or laser light source, etc.) will generate a lot of heat. The projector and internal components are under high temperature, which will affect the brightness and reduce the service life. Therefore, heat dissipation is very important for the projector.

[0003] Publication number CN208188559U discloses a heat dissipation system and a laser projector. When the laser projector is working, air will pass through the radiator, the laser projector, and the main control circuit board in turn to dissipate heat and then be discharged from the projection housing. The air will form a heat flow when passing through the radiator, and dissipate heat to other heat-generating components. The heat dissipation effect is not good, which will affect the normal operation of other components during the process. Utility Model Content

[0004] The present application provides a laser projector to solve the problem of poor heat dissipation of the above laser projector, and adopts the following technical solutions:

[0005] A laser projector comprises a housing provided with a cavity, a projector and a support provided in the cavity, wherein the projector comprises a projection part, an integration part, an optical machine and a laser light source connected in sequence;

[0006] The integration part is arranged on the support, at least one air duct connected to the cavity is arranged in the support, a partition plate 1 and a partition plate 2 are arranged on both sides of the projection part, and a power supply component is arranged in the partition plate 2;

[0007] At least one blowing member, the blowing member is arranged in the support and connected to the air duct, and is used to send external air into the cavity;

[0008] A heat dissipation group, the heat dissipation group is arranged in the partition plate 1 and connected to the laser light source, and is used to dissipate heat from the laser light source;

[0009] The exhaust group includes fan 1 and fan 2 respectively arranged at one end of the partition 1 and the partition 2, and fan 3 corresponding to the optical machine. Air enters the cavity and flows to the integration part, the optical machine, the partition 1 and the partition 2 for heat dissipation.

[0010] Preferably, the heat dissipation group includes a radiator and at least one heat pipe, and a heat conducting plate connecting the laser light source and the radiator. One end of the heat pipe is arranged between the heat conducting plate and the radiator, and the other end is distributed on the radiator, which can improve the heat dissipation efficiency of the laser light source and reduce the overall volume.

[0011] Preferably, it also includes heat dissipation fins, which are arranged on the optical machine, and the fan three is arranged opposite to the heat dissipation fins to accelerate the heat dissipation efficiency of the optical machine.

[0012] Preferably, a support plate is further provided in the shell, a cavity is formed between the support plate and the bottom of the shell, and an air outlet corresponding to the partition plate 1 and the optical machine is provided on the support plate.

[0013] Preferably, the air duct includes at least one heat dissipation port connected to the cavity, some of the heat dissipation ports are located at the bottom of the integration portion, and the remaining heat dissipation ports correspond to the optical engine.

[0014] Preferably, it also includes a main control circuit board, which is located above the integration part and electrically connects the projector, the exhaust group, the blower and the power supply assembly.

[0015] Further preferably, the support is also provided with an opening connected to the outside of the shell, the shell is provided with a first air inlet and a second air inlet, and an exhaust outlet corresponding to the heat dissipation group, the first air inlet and the second air inlet correspond to the opening and the cavity respectively.

[0016] Further preferably, a detachable dust-proof component is provided in the opening.

[0017] The beneficial effects of this application are:

[0018] (1) The heat-generating components of the projector are separated by partitions 1 and 2, and the air entering the shell is divided into multiple paths, which enter partitions 1 and 2 respectively to independently dissipate the heat of the power supply components and the laser light source, thereby preventing the diffusion to the outside and affecting the normal operation of other components, thereby ensuring the working stability of the laser projector. The air entering the shell is divided into multiple paths, which can dissipate the heat of the internal components of the laser projector and increase its service life.

[0019] (2) The heat dissipation group is connected to the laser light source, and the heat sink and the laser light source are respectively connected to the end surfaces on both sides of the heat conduction plate. This arrangement can reduce the overall volume of the projector.

[0020] (3) The support plate is provided with air outlets corresponding to the optical machine and the heat dissipation group. External air enters the cavity and blows toward the optical machine and the heat dissipation group, further improving the heat dissipation effect of the optical machine and the laser light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic internal structure diagram from the first perspective of the present application;

[0022] Figure 2 is a schematic internal structure diagram from the second perspective of the present application;

[0023] Figure 3 is a three-dimensional schematic diagram of the heat dissipation group of the present application;

[0024] Figure 4 is a schematic structure diagram of the support plate of the present application;

[0025] Figure 5 is a schematic internal structure diagram of the support of the present application;

[0026] Figure 6 is a schematic diagram of the air flow of the present application.

[0027] In the figure:

[0028] 1. Housing, 11. First air inlet, 12. Second air inlet, 13. Exhaust port, 2. Projector, 20. Blower, 21. Projection part, 22. Integration part, 23. Optical engine, 24. Laser light source, 3. Support, 31. Heat dissipation port, 32. Air duct, 4. First partition, 5. Second partition, 6. Heat dissipation group, 61. Radiator, 62. Heat pipe, 63. Heat conducting plate, 64. Heat dissipation fins, 7. Power supply component, 8. Support plate, 80. Cavity, 81. Air blowing port, 9. Main control circuit board, 10. Exhaust group, 100. Dust-proof component, 101. First fan, 102. Second fan, 103. Third fan. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings of the present application. Obviously, the described embodiments of the present application are only some of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Refer to Figures 1 to 6 , for further description of the present application, a laser projector includes a housing 1 provided with a cavity, and a projector 2 and a support 3 provided in the cavity. The projector 2 includes a projection part 21, an integration part 22, an optical engine 23 and a laser light source 24 connected in sequence. The projector 2 is generally in a "U" shape. An optical component (not shown) is provided in the optical engine 23. The laser light source 24 provides a light source for the optical engine 23. The light source enters the integration part 22 through the optical component, is processed and then projected through the projection part 21. Among them, the integration part 22 is a liquid crystal display.

[0031] The integration part 22 is arranged on the support 3, and at least one air duct 32 connected to the cavity is arranged in the support 3, so that the external air can enter the cavity through the air duct 32. The projection part 21 is provided with a partition 1 4 and a partition 2 5 on both sides, respectively. The partition 2 5 is provided with a power supply component 7, and the power supply component 7 is used to connect an external power supply to power the laser projector. The partition 1 4 and the partition 2 5 are both connected to the cavity.

[0032] At least one blowing member 20 is disposed in the support 3 and connected to the air duct 32 for sending external air into the cavity.

[0033] The heat dissipation group 6 is connected to the laser light source 24 and is used to dissipate heat for the laser light source 24. In this embodiment, the blowing member 20 is a blower.

[0034] Combination Figure 2 and Figure 3 The exhaust group 10 includes a fan 101 and a fan 2 102 respectively arranged at one end of the partition 1 4 and the partition 2 5, and a fan 3 103 corresponding to the optical engine 23. The air entering the cavity flows toward the integration part 22, the optical engine, the partition 1 4 and the partition 2 5 respectively, and is discharged after dissipating the heat of the power supply component 7 and the heat dissipation group 6.

[0035] When the laser projector is working, the laser light source 24, the optical engine 23 and the light source assembly will generate a large amount of heat. The components are respectively arranged close to the exhaust group 10, and the air after the heat is dissipated will be directly discharged by the exhaust group 10 to prevent the heat flow after the heat is dissipated from dissipating to other components; the air entering the cavity will be guided by the heat dissipation group 6 and divided into multiple paths, and the partition 1 4 and the partition 2 5 can guide the direction of air flow; the hot air after the heat is dissipated by the laser light source 24, the optical engine 23 and the power supply assembly 7 will be directly discharged by the heat dissipation group 6 to prevent their own heat or heat flow after heat dissipation from affecting other components. The multi-path air is discharged after independently dissipating the heat of each component, and the heat dissipation efficiency is high, ensuring that the components will not be damaged due to excessive temperature.

[0036] Combination Figure 3In order to improve the heat dissipation effect of the laser light source 24, the heat dissipation group 6 includes a radiator 61 and at least one heat pipe 62, and a heat conducting plate 63 connecting the laser light source 24 and the radiator 61, that is, the laser light source 24 and the radiator 61 are respectively connected to the opposite side end surfaces of the heat conducting plate 63. This arrangement can reduce the volume of the laser projector; the heat conducting plate 63 is used to transfer the heat from the laser light source 24 to the radiator 61, one end of the heat pipe 62 is arranged between the heat conducting plate 63 and the radiator 61, and the other end is distributed at different positions of the radiator 61, which can quickly guide the heat to each position of the radiator 61 to improve the overall heat dissipation effect of the radiator 61.

[0037] In some embodiments, a heat sink 64 is further included. The heat sink fin 64 is disposed on the optical engine 23 to accelerate the heat dissipation effect of the optical engine 23. Specifically, the fan three 103 is arranged opposite to the heat sink fin 64. The fan three 103 guides part of the air in the cavity to the heat sink fin 64, and discharges the air after dissipating the heat of the optical engine 23.

[0038] Combination Figure 4 A support plate 8 is also provided in the shell 1, and the support 3 and the projector 2 are both provided on the support plate 8. A cavity 80 is formed between the support plate 8 and the bottom of the shell 1, and an air outlet 81 corresponding to the partition 4 and the optical engine 23 is opened on the support plate 8. External air enters the cavity 80 and blows from the air outlet 81 to the partition 4 and the optical engine 23, further dissipating heat and cooling the heat dissipation group 6 and the optical engine 23, wherein the air outlet 81 is close to one side of the fan 1 101 and the fan 2 102. Therefore, after the air sent in through the air outlet 81 dissipates heat to the optical engine 23 and the heat dissipation group 6, the fan 1 101 and the fan 2 102 are directly discharged.

[0039] Combination Figure 6 The shell 1 is provided with a first air inlet 11 and a second air inlet 12, as well as an exhaust port 13 corresponding to the exhaust group 10. The first air inlet 11 and the second air inlet 12 are respectively connected to the support 3 and the cavity 80. Specifically, the support 3 is also provided with an opening connected to the outside of the shell 1, and the first air inlet 11 is connected to the opening.

[0040] When in use, external air can enter the shell 1 through the first air inlet 11 and the second air inlet 12. Under the action of the blowing member 20, the external air is sucked into the support 3 from the first air inlet 11, and the air is sent into the cavity through the air duct 32; the other end of the partition 1 4 is arranged on the side away from the support 3, and the other end of the partition 2 5 is arranged on the side close to the support 3, so the fan 1 101 will guide part of the air to pass through the projection part 21, enter the partition 1 4 to dissipate the heat of the heat dissipation group 6 and then discharge it directly; the fan 2 102 guides part of the air to pass through the optical machine 23 to dissipate the heat and then discharge it directly, and the fan 3 103 guides the remaining air to the partition 2 5 to dissipate the heat of the power supply component 7 and then discharge it directly, so as to prevent the hot air after the heat dissipation affects other components.

[0041] The air duct 32 includes at least one heat dissipation port 31 connected to the cavity, and the heat dissipation port 31 is arranged on the support 3. Some of the heat dissipation ports 31 are located at the bottom of the integration part 22, and the remaining heat dissipation ports 31 correspond to the optical engine 23. When the blowing member 20 sends air into the cavity, the air is blown toward the integration part 22 and the optical engine 23, thereby dissipating the heat of the integration part 22 and the optical engine 23.

[0042] Combination Figure 1 , and also includes a main control circuit board 9, which is located above the integration part 22. The main control circuit board 9 is electrically connected to the projector 2, the exhaust group 10, the blowing member 20 and the power supply assembly 7. When air blows toward the integration part 22 through the heat dissipation port 31, the main control circuit board 9 above it can be cooled at the same time to ensure that the integration part 22 and the main circuit board 9 work at a normal temperature.

[0043] The opening is provided with a detachable dustproof component 100 to ensure that dust or flying insects and other impurities in the external air enter the housing 1 and are blown toward the integration part, thereby preventing the image quality of the laser projector from being affected and ensuring the cleanliness of the interior.

Claims

1. Laser projector, characterized in that: It includes a shell with a cavity, and a projector and a support arranged in the cavity, wherein the projector includes a projection part, an integration part, an optical machine and a laser light source connected in sequence; The integration part is arranged on the support, at least one air duct connected to the cavity is arranged in the support, a partition plate 1 and a partition plate 2 are arranged on both sides of the projection part, and a power supply component is arranged in the partition plate 2; At least one blowing member, the blowing member is arranged in the support and connected to the air duct, and is used to send external air into the cavity; A heat dissipation group, the heat dissipation group is arranged in the partition plate 1 and connected to the laser light source, and is used to dissipate heat from the laser light source; The exhaust group includes fan 1 and fan 2 respectively arranged at one end of the partition 1 and the partition 2, and fan 3 corresponding to the optical machine. Air enters the cavity and flows to the integration part, the optical machine, the partition 1 and the partition 2 for heat dissipation.

2. The laser projector according to claim 1, characterized in that: The heat dissipation group includes a heat sink and at least one heat pipe, and a heat conducting plate connecting the laser light source and the heat sink. One end of the heat pipe is arranged between the heat conducting plate and the heat sink, and the other end is distributed on the heat sink.

3. The laser projector according to claim 1, characterized in that: It also includes heat dissipation fins, which are arranged on the optical machine, and the fan three is arranged opposite to the heat dissipation fins.

4. The laser projector according to claim 1, characterized in that: A support plate is also provided in the shell, a cavity is formed between the support plate and the bottom of the shell, and an air outlet corresponding to the partition plate 1 and the optical machine is provided on the support plate.

5. The laser projector according to claim 1, characterized in that: The air duct includes at least one heat dissipation port connected to the cavity, some of the heat dissipation ports are located at the bottom of the integration portion, and the remaining heat dissipation ports correspond to the optical engine.

6. The laser projector according to claim 1, characterized in that: It also includes a main control circuit board, which is located above the integration part and is electrically connected to the projector, the exhaust group, the blower and the power supply component.

7. The laser projector according to claim 4, characterized in that: The support is also provided with an opening connected to the outside of the shell, and the shell is provided with a first air inlet and a second air inlet, as well as an exhaust port corresponding to the heat dissipation group, and the first air inlet and the second air inlet correspond to the opening and the cavity respectively.

8. The laser projector according to claim 7, characterized in that: A detachable dust-proof component is arranged in the opening.

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