Heat dissipation device of closed ray machine
By installing a cooling fan and air guide on the outside of the optical engine and optimizing the airflow direction, the problem of poor heat dissipation in enclosed optical engines was solved, achieving a more efficient heat dissipation effect and extending the service life of the optical engine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2026-03-20
AI Technical Summary
The existing heat dissipation system of enclosed optical engines cannot effectively and timely dissipate internal heat, which may lead to high temperature and burn out the optical engine.
Cooling fan one and cooling fan two are installed outside the optical engine. The airflow direction is optimized by the air guide and heat dissipation fins to assist in heat dissipation and improve heat dissipation efficiency.
To improve the heat dissipation efficiency of the optical engine within a limited space and extend its service life.
Smart Images
Figure CN224020135U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of projector heat dissipation technology, in particular to a heat dissipation device of a closed light machine. BACKGROUND
[0002] The light machine, as the core component of the projector, integrates the display chip, light source, heat dissipation system and optical path, etc. key components in a shell; the light machine is mainly divided into LCD liquid crystal, DLP and LCOS according to different display technologies.
[0003] The closed light machine in the prior art is usually cooled by the internal closed loop flow channel (also known as internal circulation air duct) arranged inside, but the light cup or light source in the light machine is easy to cause the heat in the light machine to be unable to be discharged in time after multiple refractions, thereby causing internal high temperature, and even the light machine may be burned out. CONTENT OF THE UTILITY MODEL
[0004] In view of this, the present application provides a heat dissipation device of a closed light machine, which takes away the heat outside the light machine by a heat dissipation fan two arranged outside the light machine, and specifically adopts the following technical solutions:
[0005] The heat dissipation device of the closed light machine comprises a closed light machine body, at least one heat dissipation fan one is arranged on one side of the light machine for taking away the heat at the light source of the light machine, and a heat dissipation fan two is arranged on the other side of the light machine for taking away the heat outside the light machine; the final air outlet direction of the heat dissipation fan two is consistent with the air outlet direction of the heat dissipation fan one, and the air blown by the heat dissipation fan two is changed in flow direction when flowing through the air inlet of the heat dissipation fan one.
[0006] Preferably, the heat at the light source of the light machine is guided and transmitted to the heat dissipation fin through the copper plate, mainly dissipated by the heat dissipation fan one, and assisted by the heat dissipation fan two.
[0007] In order to reduce the loss of air volume of the heat dissipation fan two, a wind guide cover is arranged outside the light machine for shunting at the air outlet of the heat dissipation fan two, and the shunting is respectively to the upper surface and the lower surface of the light machine.
[0008] Further preferably, the gas flowing through the upper surface of the light machine can be sucked into the heat dissipation fan one, so as to accelerate the air speed flowing through the outer surface of the light source and increase the air volume of the heat dissipation fan one, so as to increase the heat dissipation efficiency.
[0009] Further preferably, the gas flowing through the lower surface of the light machine is consistent with the air outlet direction of the heat dissipation fan one, so as to accelerate the flow rate of the gas flow at the air outlet of the heat dissipation fan one.
[0010] In order to better guide the air outlet direction of the heat dissipation fan two, the wind guide cover and the left and right contact sides of the light machine are both provided with baffles.
[0011] Preferably, the light machine is provided with heat dissipation fins for increasing the heat dissipation area, and the setting direction is parallel to the air outlet direction of the second heat dissipation fan.
[0012] Preferably, two first heat dissipation fans are provided.
[0013] Preferably, the first heat dissipation fan is a blower, and the second heat dissipation fan is an exhaust fan.
[0014] The beneficial effects of the present application are:
[0015] The light source is mainly cooled by the first heat dissipation fan, and the second heat dissipation fan assists the first heat dissipation fan, and the second heat dissipation fan can also carry away the heat of the light machine periphery; in the limited installation space, such heat dissipation configuration can improve the heat dissipation efficiency of the light machine, thereby prolonging its service life. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 is a schematic diagram of the heat dissipation device described in the present application;
[0017] Fig. 2 is a schematic diagram of the airflow direction of the heat dissipation device described in the present application;
[0018] Fig. 3 is a schematic diagram of the light machine described in the present application.
[0019] In the figure: 1, light machine, 11, heat dissipation fin, 2, first heat dissipation fan, 3, second heat dissipation fan, 4, copper plate, 5, heat dissipation fin, 6, air guide cover, 61, baffle. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings of the present application. Obviously, the embodiments described in the present application are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] In combination with Figs. 1 to 3 Further description is made to the heat dissipation device of the closed light machine described in the present application, which comprises a closed light machine 1 body, at least one first heat dissipation fan 2 is arranged on one side of the light machine 1 for carrying away the heat at the light source of the light machine 1, and a second heat dissipation fan 3 is arranged on the other side of the light machine 1 for carrying away the heat of the periphery of the light machine 1; the final air outlet direction of the second heat dissipation fan 3 is consistent with the air outlet direction of the first heat dissipation fan 2, and the air blown by the second heat dissipation fan 3 is changed in flow direction when flowing through the air inlet of the first heat dissipation fan 2.
[0022] The heat at the light source of the light machine 1 is guided to the heat dissipation fin 5 through the copper plate 4, mainly dissipated by the first heat dissipation fan 2, and assisted by the second heat dissipation fan 3.
[0023] In order to reduce the air volume loss of the second heat dissipation fan 3, the light machine 1 is provided with a wind deflector 6 on the periphery for air shunting at the air outlet of the second heat dissipation fan 3, and the shunted air flows to the upper surface and the lower surface of the light machine 1 respectively. Among them, the gas flowing through the upper surface of the light machine 1 can be sucked into the first heat dissipation fan 2, which can increase the air volume of the first heat dissipation fan 2 and the air speed flowing through the outer surface of the light source, so as to increase the heat dissipation efficiency; the gas flowing through the lower surface of the light machine 1 is consistent with the air outlet direction of the first heat dissipation fan 2, so as to accelerate the flow rate of the airflow at the air outlet of the first heat dissipation fan 2, thereby improving the heat dissipation efficiency.
[0024] In order to better guide the air outlet direction of the second heat dissipation fan 3, the wind deflector 6 is provided with a baffle 61 on the left and right contact sides of the light machine 1; prevent the airflow from escaping during the flow process, and ensure that the airflow can flow in the predetermined direction, thereby further improving the heat dissipation efficiency.
[0025] As shown in Fig. 3 The light machine 1 is provided with a heat dissipation fin 11 on the periphery for increasing the heat dissipation area, and the setting direction is parallel to the air outlet direction of the second heat dissipation fan 3, so as to maximize the use of the airflow generated by the second heat dissipation fan 3, and the heat on the heat dissipation fin 11 is more effectively taken away.
[0026] In this embodiment, two first heat dissipation fans 2 are provided; the first heat dissipation fan 2 is a blower, and the second heat dissipation fan 3 is an exhaust fan.
[0027] Specific heat dissipation process: the airflow blown by the second heat dissipation fan 3 is guided by the wind deflector 6, and flows through the upper surface and the lower surface of the light machine 1 respectively; among them, the airflow flowing through the upper surface is affected by the suction force of the first heat dissipation fan 2 when passing through the suction port of the first heat dissipation fan 2, and is sucked into the first heat dissipation fan 2, and then flows to the light source heat dissipation fin 5 together with the airflow flowing through the lower surface.
Claims
1. A heat dissipation device for a closed optical engine, characterized in that: The optical engine includes a sealed optical engine body. One side of the optical engine is provided with at least one cooling fan to remove heat from the light source of the optical engine. The other side of the optical engine is provided with a cooling fan to remove heat from the periphery of the optical engine. The final air outlet direction of the cooling fan is the same as that of the cooling fan. The air blown out by the cooling fan is changed by the cooling fan when it flows through the air inlet of the cooling fan. The heat from the optical engine light source is transferred to the heat sink via a copper plate, and is mainly dissipated by the first cooling fan, with the second cooling fan providing auxiliary heat dissipation. The optical engine is surrounded by a wind deflector, which is used to split the airflow at the two outlets of the cooling fan, directing it to the upper and lower surfaces of the optical engine respectively.
2. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: The gas flowing over the upper surface of the optical engine can be drawn in by the cooling fan, which increases the airflow of the cooling fan while accelerating the wind speed flowing over the outer surface of the light source.
3. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: The gas flowing over the lower surface of the optical engine is aligned with the exhaust direction of the first cooling fan to accelerate the airflow velocity at the exhaust port of the first cooling fan.
4. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: The air guide cover and the left and right contact sides of the optical engine are both equipped with baffles.
5. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: The optical engine is surrounded by heat dissipation fins to increase the heat dissipation area, and the fins are arranged in a direction parallel to the air outlet direction of the second cooling fan.
6. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: Two cooling fans are provided.
7. The heat dissipation device for a closed optical engine according to claim 1, characterized in that: The first cooling fan is a blower, and the second cooling fan is an exhaust fan.