Composite heat dissipation structure and method for laser projector

Abstract

The invention relates to a composite heat dissipation structure and method for a laser projector, and belongs to the field of heat management of electronic components, and the composite heat dissipation structure mainly comprises a heat pipe, a substrate, a phase change material, fins, a fan and a laser light source. The main effects are that a heat pipe type radiator and phase change material composite system is utilized to control the temperature of the projector to be maintained within a specified hot spot all the time on the premise of ensuring efficient, safe and stable work of the laser projector, and the problem of high heat in a short time in the use process of the laser projector is solved through the use of the phase change material. And the problems of low heat dissipation capability, unstable heat dissipation environment and the like caused by air-cooling heat dissipation are effectively avoided.

Description

Technical Field

[0001] The invention relates to a composite heat dissipation structure and method for a laser projector, and belongs to the field of thermal management of electronic components. Background Art

[0002] Strengthening the heat dissipation of laser projectors is the key to ensuring their performance, reliability and service life. Laser light sources and other electronic components generate a lot of heat when working. Excessive temperature will reduce the efficiency of the light source, affect the image quality, and cause system instability. At the same time, high temperature accelerates the aging of electronic components, shortens the life of laser light sources and other key components, and increases the failure rate. Effective heat dissipation can slow down the aging process and reduce damage and safety hazards caused by overheating, such as thermal damage and fire risks, thereby ensuring user safety. In addition, an efficient heat dissipation system reduces maintenance frequency and replacement costs, improves user experience, and ensures that the device provides high-brightness, high-quality images in long-term use. Therefore, strengthening heat dissipation not only ensures high performance and long life of the equipment, but also significantly improves the overall user satisfaction. Summary of the invention

[0003] The present invention provides a heat dissipation structure and method for coupling a phase change material and a heat pipe for a laser projector, comprising a first heat pipe (1), a second heat pipe (2), a third heat pipe (3), a fourth heat pipe (4), a fifth heat pipe (5), a sixth heat pipe (6), a seventh heat pipe (7), an eighth heat pipe (8), a ninth heat pipe (9), a laser light source (10), a phase change material (11), a fin (12), a fan (13), a laser channel (14), and a substrate (15).

[0004] The technical solution of the present invention is a composite heat dissipation structure of a laser projector, characterized in that the evaporation sections of the first heat pipe (1), the fourth heat pipe (4) and the sixth heat pipe (6) are embedded in a substrate (15), and the condensation sections are provided with fins (12); wherein the substrate is installed on the surface of a laser light source (10); wherein the evaporation sections of the second heat pipe (2), the third heat pipe (3) and the fifth heat pipe (5) are embedded in a substrate (15), and the condensation sections are embedded in a phase change material (11); wherein the evaporation sections of the seventh heat pipe (7), the eighth heat pipe (8) and the ninth heat pipe (9) are embedded in a phase change material (11), and the condensation sections are provided with fins (12); wherein the fan (13) is installed on the surface of the fins (12) to enhance forced convection.

[0005] The latent heat per unit mass (volume) of phase change material during phase change, and the heat storage capacity is very large. Since the laser projector is used intermittently, part of the heat during operation is stored in it through the phase change of the phase change material, and the other part is directly dissipated through fin-enhanced forced convection. When the laser projector is not in use, the other part of the heat stored in the phase change material continues to dissipate.

[0006] The beneficial effect of the present invention is that the phase change material and heat pipe coupled radiator system can control the temperature of the laser projector to be maintained within the specified hot spot at all times while ensuring the efficient, safe and stable operation of the laser projector, and effectively avoid the heat dissipation problem of short-term high heat during the use of the laser projector. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 and Figure 2 It is a system schematic diagram of the present invention.

[0008] Figure 1 The names of the numbers are: first heat pipe (1), second heat pipe (2), third heat pipe (3), fourth heat pipe (4), fifth heat pipe (5), sixth heat pipe (6), laser light source (10), phase change material (11), fin (12), fan (13), substrate (15).

[0009] Figure 2 The names of the numbers are: the seventh heat pipe (7), the eighth heat pipe (8), the ninth heat pipe (9), and the laser channel (14). Specific implementation plan

[0010] The composite heat dissipation structure and method for a laser projector according to the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0011] As shown in the figure, a composite heat dissipation structure and method for a laser projector described in the present invention mainly comprises: a first heat pipe (1), a second heat pipe (2), a third heat pipe (3), a fourth heat pipe (4), a fifth heat pipe (5), a sixth heat pipe (6), a seventh heat pipe (7), an eighth heat pipe (8), a ninth heat pipe (9), a laser light source (10), a phase change material (11), a fin (12), a fan (13), a laser channel (14), and a substrate (15).

[0012] A specific implementation scheme of the present invention: a composite heat dissipation structure and method for a laser projector, characterized in that the evaporation sections of the first heat pipe (1), the fourth heat pipe (4), and the sixth heat pipe (6) are embedded in a substrate (15), and the condensation sections are equipped with fins (12); wherein the substrate is installed on the surface of a laser light source (10); wherein the evaporation sections of the second heat pipe (2), the third heat pipe (3), and the fifth heat pipe (5) are embedded in a substrate (15), and the condensation sections are embedded in a phase change material (11); wherein the evaporation sections of the seventh heat pipe (7), the eighth heat pipe (8), and the ninth heat pipe (9) are embedded in a phase change material (11), and the condensation sections are equipped with fins (12); wherein the fan (13) is installed on the surface of the fins (12) to enhance forced convection.

[0013] The latent heat per unit mass (volume) of phase change material during phase change, and the heat storage capacity is very large. Since the laser projector is used intermittently, part of the heat during operation is stored in it through the phase change of the phase change material, and the other part is directly dissipated through fin-enhanced forced convection. When the laser projector is not in use, the other part of the heat stored in the phase change material continues to dissipate.

[0014] The beneficial effect of the present invention is that the phase change material and heat pipe coupled radiator system can control the temperature of the laser projector to be maintained within the specified hot spot at all times while ensuring the efficient, safe and stable operation of the laser projector. The problem of short-term high heat dissipation during the use of the laser projector is effectively avoided. In addition, the installation of a fan can strengthen the forced convection and enhance the heat dissipation effect.

[0015] The present invention adopts air as a cold source, realizes heat exchange with a laser light source by installing a heat pipe, relies on fins to strengthen the heat exchange of air, realizes efficient and stable heat dissipation, solves the heat dissipation problem of high heat in a short time by installing phase change materials, and adds a fan to enhance the heat dissipation effect by enhancing the forced force.

Claims

1. A composite heat dissipation structure and method for a laser projector, characterized in that: The heat pipe comprises a first heat pipe (1), a second heat pipe (2), a third heat pipe (3), a fourth heat pipe (4), a fifth heat pipe (5), a sixth heat pipe (6), a seventh heat pipe (7), an eighth heat pipe (8), a ninth heat pipe (9), a laser light source (10), a phase change material (11), fins (12), a fan (13), a laser channel (14), and a substrate (15); wherein the evaporation sections of the first heat pipe (1), the fourth heat pipe (4), and the sixth heat pipe (6) are embedded in the substrate (15), and the condensation sections are provided with fins. The invention relates to a heat dissipation device comprising a heat dissipation device and a heat dissipation device, wherein the heat dissipation device comprises a heat dissipation device and a heat dissipation device. The ...

2. The composite heat dissipation structure for a laser projector according to claim 1, characterized in that: The first heat pipe (1), the second heat pipe (2), the third heat pipe (3), the fourth heat pipe (4), the fifth heat pipe (5), the sixth heat pipe (6), the seventh heat pipe (7), the eighth heat pipe (8) and the ninth heat pipe (9) have a liquid wick with capillary suction pressure inside the insulation section to enhance the flow of the working medium in the pipe.

3. The silent heat dissipation structure for a laser projector according to claim 1, characterized in that: The fins (12) are connected to the projector bottom plate.

Images