Heat dissipation structure for double-light-source lamp

Abstract

A heat dissipation structure for a double-light-source lamp comprises a first light source assembly provided with a first light source and a first lamp panel, a first heat dissipation structure tightly attached to the first lamp panel and used for heat dissipation of the first light source, a second light source assembly provided with a second light source and a second lamp panel, and a second heat dissipation structure tightly attached to the second lamp panel and used for heat dissipation of the second light source. The second heat dissipation structure comprises a heat insulation element, the second light source, the heat insulation element and the first light source are sequentially and coaxially distributed at intervals from top to bottom, and the projection of the heat insulation element in the direction of the second lamp panel completely covers the second lamp panel.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamps, and more specifically to a heat dissipation structure for a dual-light source lamp. Background Art

[0002] Existing stage lights typically have a single light source. Because a single light source generates relatively little heat, conventional heat dissipation structures can meet these requirements. However, with the development of stage lighting fixtures, dual-light source fixtures have emerged, and conventional heat dissipation structures are no longer sufficient. Dual-light source fixtures, operating simultaneously, generate significantly more heat than single-light source fixtures. Failure to implement effective measures to control the light source temperature can not only shorten the product's lifespan but also significantly impact the lighting performance. Summary of the Invention

[0003] The utility model provides a heat dissipation structure for a dual-light source lamp, so as to solve the heat dissipation problem of the dual-light source stage lamp proposed in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A heat dissipation structure for a dual-light source lamp comprises a light source assembly 1 having a first light source and a first light board, a first heat dissipation structure in close contact with the first light board for dissipating heat from the first light source, a light source assembly 2 having a second light source and a second light board, and a second heat dissipation structure in close contact with the second light board for dissipating heat from the second light source, characterized in that the second heat dissipation structure comprises a heat insulation element, the second light source, the heat insulation element, and the first light source are coaxially distributed in sequence from top to bottom, and the projection of the heat insulation element in the direction of the second light board completely covers the second light board.

[0006] As a further improvement of the present invention, the first heat dissipation structure includes a radiator shell, the upper portion of the radiator shell is provided with a cavity for accommodating the light source assembly 1, and the lower portion of the radiator shell is provided with a plurality of heat dissipation fins.

[0007] As a further improvement of the present invention, the second heat dissipation structure also includes a heat conducting plate and a plurality of heat pipes that are in close contact with the second lamp board. One end of the plurality of heat pipes is embedded in the heat conducting plate, and the other end is connected to the radiator housing.

[0008] As a further improvement of the present invention, the shape of the heat conducting plate is adapted to the second lamp board.

[0009] As a further improvement of the present invention, the upper surface of the heat conducting plate is in close contact with the second lamp board, and the lower surface is in close contact with the heat insulating element.

[0010] As a further improvement of the present invention, the second heat dissipation structure also includes a heat dissipation fixing member, which includes a cylindrical portion for constraining the light emitted by the second light source and a supporting portion for accommodating and fixing multiple heat pipes, and the supporting portion is located on one side of the cylindrical portion.

[0011] As a further improvement of the present invention, the second heat dissipation structure further includes a light shielding plate, which is adjacent to the heat pipe and located below the heat pipe.

[0012] As a further improvement of the present invention, the shape of the light shielding plate is adapted to the heat transfer path of the heat pipe, and the width of the light shielding plate is greater than the combined width of the plurality of heat pipes.

[0013] As a further improvement of the present invention, the heat insulation element is made of white heat insulation material.

[0014] As a further improvement of the present invention, the heat insulation element is also comprised of ceramics. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the present utility model.

[0016] Figure 2 This is a three-dimensional exploded view of the present invention.

[0017] Figure 3 It is a three-dimensional diagram of the present utility model.

[0018] Figure 4 3D is a perspective view of the second heat dissipation structure.

[0019] Figure 5 is a cross-sectional view of the second heat dissipation structure.

[0020] In the figure: light source assembly 1; first light source 11; first lamp board 12; light source assembly 2; second light source 21; second lamp board 22; first heat dissipation structure 3; radiator housing 31; cavity 311; heat dissipation fins 312; second heat dissipation structure 4; heat insulation element 41; heat conducting plate 42; groove 421; heat pipe 43; light baffle 44; heat dissipation fixing member 45; cylinder 451; opening 2 4511; support portion 452; reflector cup 5; opening 1 51. DETAILED DESCRIPTION

[0021] Combined with attachment Figure 1 , Attachment Figure 2 and attached Figure 3A heat dissipation structure for a dual-light source lamp includes a light source assembly 1 having a first light source 11 and a first light panel 12, a first heat dissipation structure 3 in close contact with the first light panel 12 for dissipating heat from the first light source 11, a light source assembly 2 having a second light source 21 and a second light panel 22, and a second heat dissipation structure 4 in close contact with the second light panel 22 for dissipating heat from the second light source 21. The second heat dissipation structure 4 includes a heat insulation element 41. The second light source 21, the heat insulation element 41, and the first light source 11 are coaxially spaced from top to bottom. The projection of the heat insulation element 41 in the direction of the second light panel 22 completely covers the second light panel 22. The first light panel 12 is a rectangular flat plate. The first light panel 12 is mounted on the first heat dissipation structure 3. Therefore, the heat generated by the first light source 11 can be directly transferred to the first heat dissipation structure 3, ensuring that the temperature inside the lamp does not become too high. The second light source 21 is mounted on the second light panel 22. The heat generated by the second light source 21 can be quickly transferred to the second heat dissipation structure 4. The first and second heat dissipation structures 3 and 4 dissipate heat simultaneously, greatly improving heat dissipation efficiency. Heat generated by light source assembly 1 is directly discharged from the lamp through the first heat dissipation structure 3. Heat generated by light source assembly 2 is transferred to the lamp housing through the second heat dissipation structure 4 and then discharged outside the lamp through the lamp housing. The heat insulation element 41 is a circular flat plate located below the second light panel 22. The first and second light sources 11 and 21 are spaced coaxially and located between them. The heat insulation element 41 is slightly larger than the size of the second light panel 21. The beneficial effect of this embodiment is that the heat insulation element 41 can completely block the light emitted by the first light source 21. The heat insulation element 41 can block the light directly emitted by the first light source 11 from the second heat dissipation structure 4, thereby preventing the second heat dissipation structure 4 from being affected by the heat emitted by the light directly emitted by the first light source 11.

[0022] As a new implementation method, combined with the Figure 2 The first heat dissipation structure 3 includes a heat sink housing 31. The upper portion of the heat sink housing 31 is provided with a cavity 311 for accommodating the light source assembly 1, and the lower portion of the heat sink housing 31 is provided with a plurality of heat dissipation fins 312. The heat sink housing 31 is a coaxial cylindrical shell, with the plurality of heat dissipation fins 312 radially spaced along the circumference. A space is reserved between the heat dissipation fins 312 for installing a fan. A reflector cup 5 is also mounted on the first heat dissipation structure 3. The reflector cup 5 is a bowl-shaped structure and is coaxially nested with the light source assembly 1. The beneficial effect of this embodiment is that the heat generated by the light source assembly 1 can be directly transferred to the heat sink housing 31 and discharged from the lamp through the plurality of heat dissipation fins 312.

[0023] As a new implementation method, combined with the Figure 1The second heat dissipation structure 4 also includes a heat conducting plate 42 and a plurality of heat pipes 43 that are tightly attached to the second lamp board 22. One end of the plurality of heat pipes 43 is embedded in the heat conducting plate 42, and the other end is connected to the radiator housing 31. The heat conducting plate 42 is provided with a plurality of grooves 421 that are adapted to the heat pipes 43; the heat pipes 43 are bent into a "𡰣" shape, and one end of the heat pipes 43 embedded in the heat conducting plate 42 is provided with a flat surface that is in the same plane as the surface of the heat conducting plate 42; the other end of the heat pipes 43 is connected to the radiator housing 31 through a fixing part, and is installed on the same plane inside the cavity 311 as the first lamp board 12. The heat generated by the second light source 21 is first transferred to the heat conducting plate 42, and then transferred to the radiator housing 31 through the plurality of heat pipes 43 embedded in the heat conducting plate 42, and then discharged to the outside of the lamp through the radiator housing 31 and the heat dissipation fins 312 of the radiator housing 31. The beneficial effect of this embodiment is that the multiple heat pipes 43 can improve the heat dissipation efficiency of the second heat dissipation structure 4; the design of multiple heat pipes 43 embedded in the heat conducting plate 42 can enable the heat on the heat conducting plate 42 to be quickly transferred to the multiple heat pipes 43; and the heat generated by the second light source 21 can be transferred to the radiator housing 31 through the multiple heat pipes 43.

[0024] As a new implementation method, combined with the Figure 2 The shape of the heat conducting plate 42 is adapted to the second light board 22. In this embodiment, the heat conducting plate 42 is a circular flat plate; it is understood that the shape of the heat conducting plate 42 can vary with the shape of the second light board 22. The heat conducting plate 42 is slightly larger than the second light board 22 and is located below the second light board 22, closely adhering to the second light board 22. The beneficial effect of this embodiment is that the second light board 22 can completely adhere to the heat conducting plate 42, maximizing the heat transfer area and more quickly transferring the heat generated by the second light source 21 to the heat conducting plate 42.

[0025] As a new implementation method, combined with the Figure 2 , Attachment Figure 4 and attached Figure 5 The upper surface of the heat conducting plate 42 is in close contact with the second lamp board 22, and the lower surface is in close contact with the heat insulating element 41. The heat insulating element 41 is a circular flat plate, and the heat insulating element 41 is located between the first light source 11 and the heat conducting plate 42. The beneficial effect of this embodiment is that the heat generated by the second light source 21 can be quickly transferred to the heat conducting plate 42, and the heat is quickly transferred to the multiple heat pipes 43 through the heat conducting plate 42; the heat insulating element 41 can effectively prevent the light emitted by the first light source 11 from irradiating the heat conducting plate 42, preventing the heat generated by the light from affecting the heat dissipation efficiency of the second heat dissipation structure 4, thereby ensuring the overall heat dissipation performance of the dual-light source lamp.

[0026] As a new implementation method, combined with the Figure 2 , Attachment Figure 4 and attached Figure 5The second heat dissipation structure 4 further includes a heat dissipation fixture 45, which includes a cylindrical portion 451 for confining the light emitted by the second light source 21 and a support portion 452 for accommodating and securing the plurality of heat pipes 43. The support portion 452 is located on one side of the cylindrical portion 451. The cylindrical portion 451 is provided with a second opening 4511 for shielding the plurality of heat pipes 43 from air, connecting the cylindrical portion 451 with the support portion 452. The support portion 452 is a "7"-shaped structure. The reflective cup 5 is provided with an opening 51 shielding the support portion 452 from air, connecting the support portion 452 with the cavity 311. The support portion 452 can be mounted in the opening 51 provided on the reflective cup 5. The plurality of heat pipes 43 pass through the second opening 4511 to connect to the heat conducting plate 42 located within the cylindrical portion 451, and are connected to the heat sink housing 31 through the opening 51. The second light source 21 is located within the cylindrical portion 451. The beneficial effect of this embodiment is that the cylindrical portion 451 allows the light emitted by the second light source 21 to form an independent lighting effect and is not confused with the light emitted by the first light source 11; the supporting portion 452 is installed on the reflective cup 5 to provide support force for the multiple heat pipes 43 to prevent them from bending and deformation.

[0027] As a new implementation method, combined with the Figure 2 The second heat dissipation structure 4 further includes a light shield 44, which is adjacent to and below the heat pipe 43. The light shield 44 has multiple mounting holes and is mounted below the support portion 452 using fasteners. One end of the light shield 44 abuts the heat conducting plate 42 and is located between the heat pipe 43 and the thermal insulation element 41. This embodiment advantageously prevents light emitted by the first light source 11 from irradiating the heat pipe 43, potentially heating it and affecting its heat dissipation efficiency.

[0028] As a new implementation method, combined with the Figure 2 and attached Figure 5 The shape of the light shield 44 matches the heat transfer path of the heat pipe 43, and the width of the light shield 44 is greater than the combined width of the multiple heat pipes 43. The light shield 44 is formed by connecting multiple flat plates into a curved structure. One end of the light shield 44 passes through the opening 51 of the reflective cup 5, and the other end abuts the heat conducting plate 42. The shape of the light shield 44 matches the existing structure of the heat pipe, so the second heat dissipation structure 4 is compact, and the opening 51 of the reflective cup 5 is not deep, which will not cause deformation of the reflective cup 5. The beneficial effect of this embodiment is that the projection of the light shield 44 in the direction of the heat pipe 43 can completely cover the multiple heat pipes 43. The light emitted by the first light source 11 is completely blocked by the light shield 44, and the heat pipe 43 will not be heated due to the exposure to light, which greatly improves the heat dissipation efficiency of the second heat dissipation structure 4.

[0029] As a new implementation method, combined with the Figure 4 and attached Figure 5, the thermal insulation element 41 is a white thermal insulation material. The white thermal insulation element 41 can reflect almost all colors of light in the spectrum, rather than only reflecting or absorbing light of a specific wavelength like the colored thermal insulation element 41. When the light emitted by the first light source 11 shines on the white thermal insulation element 41, the light is evenly reflected by the surface of the white thermal insulation element 41. The beneficial effect of this embodiment is that the light emitted by the first light source 11 is reflected, and the heat absorption capacity of white is poor, so the heat emitted by the light emitted by the first light source 11 will not cause the temperature of the thermal insulation element 41 to rise rapidly.

[0030] As a new implementation method, combined with the Figure 4 and attached Figure 5 , the heat insulation element 41 is ceramic. The heat insulation element 41 is located above the first light source 11, is directly exposed to the light emitted by the first light source 11, and is in a high-temperature working environment. Therefore, the material of the heat insulation element 41 must have good heat insulation performance and good high-temperature stability. Ceramic materials can maintain their performance unchanged for a long time in a high-temperature environment, and the pores and gaps in the ceramic material can effectively reduce heat transfer. The beneficial effect of this embodiment is that ceramics as the heat insulation element 41 can not only adapt well to high-temperature environments, but also play a good heat insulation role, so that the heat conducting plate 42 is not affected by the heat generated by the first light source 11.

Claims

1. A heat dissipation structure for a dual-light source lamp, comprising a light source assembly having a first light source and a first light board, a first heat dissipation structure in close contact with the first light board for dissipating heat from the first light source, a light source assembly having a second light source and a second light board, and a second heat dissipation structure in close contact with the second light board for dissipating heat from the second light source, characterized in that: The second heat dissipation structure includes a heat insulation element. The second light source, the heat insulation element, and the first light source are coaxially distributed in sequence from top to bottom. The projection of the heat insulation element in the direction of the second light board completely covers the second light board.

2. The heat dissipation structure for a dual-light source lamp according to claim 1, characterized in that: The first heat dissipation structure includes a radiator shell, the upper portion of the radiator shell is provided with a cavity for accommodating the first light source assembly, and the lower portion of the radiator shell is provided with a plurality of heat dissipation fins.

3. The heat dissipation structure for a dual-light source lamp according to claim 2, characterized in that: The second heat dissipation structure further includes a heat conducting plate and a plurality of heat pipes that are in close contact with the second lamp board. One end of the plurality of heat pipes is embedded in the heat conducting plate, and the other end is connected to the radiator housing.

4. The heat dissipation structure for a dual-light source lamp according to claim 3, characterized in that: The shape of the heat conducting plate is adapted to the second lamp board.

5. The heat dissipation structure for a dual-light source lamp according to claim 3, characterized in that: The upper surface of the heat conducting plate is in close contact with the second lamp board, and the lower surface is in close contact with the heat insulating element.

6. The heat dissipation structure for a dual-light source lamp according to claim 3, characterized in that: The second heat dissipation structure further includes a heat dissipation fixing member, which includes a cylindrical portion for constraining the light emitted by the second light source and a supporting portion for accommodating and fixing a plurality of heat pipes, wherein the supporting portion is located on one side of the cylindrical portion.

7. The heat dissipation structure for a dual-light source lamp according to claim 3, characterized in that: The second heat dissipation structure further includes a light shielding plate, which is adjacent to the heat pipe and located below the heat pipe.

8. The heat dissipation structure for a dual-light source lamp according to claim 7, characterized in that: The shape of the light shielding plate is adapted to the heat transfer path of the heat pipe, and the width of the light shielding plate is greater than the combined width of the plurality of heat pipes.

9. The heat dissipation structure for a dual-light source lamp according to claim 1, characterized in that: The heat insulation element is made of white heat insulation material.

10. The heat dissipation structure for a dual-light source lamp according to claim 1, characterized in that: It also includes that the thermal insulation element is ceramic.

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