Color wheel assembly and illumination device
By using a thermally conductive connection between the phosphor and the adapter, and utilizing heat dissipation through the coaxial rotation of the heat insulation component and the fan blade, the problem of performance degradation of the color wheel at high temperatures is solved, achieving miniaturization and efficient heat dissipation of the color wheel, and reducing the thermal impact and failure risk of the drive module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YLX INC
- Filing Date
- 2024-08-02
- Publication Date
- 2026-07-10
AI Technical Summary
In high-power lighting devices, the temperature of the color wheel rises, leading to a decrease in performance. Existing technologies cool the device by adding a fan and fan motor, but this results in an increase in the size of the device.
The phosphor and the adapter are thermally connected, and the heat transfer to the drive module is reduced by the heat insulation component. The fan blades and the adapter are driven by the same drive module to rotate, which promotes heat dissipation. The airflow circulation is optimized by the volute cover and the cover.
It effectively reduces phosphor temperature, minimizes the thermal impact of the drive module, promotes color wheel miniaturization, improves heat dissipation efficiency and reduces failure risk, and optimizes airflow circulation to reduce noise.
Smart Images

Figure CN224479607U_ABST
Abstract
Description
[0001] This application is a divisional application of application number 202421863830.2, filed on August 2, 2024, entitled "Color Wheel Assembly and Lighting Device". Technical Field
[0002] This application relates to the field of lighting technology, and more particularly to a color wheel assembly and a lighting device. Background Technology
[0003] Color wheels are crucial components in lighting devices such as photographic lights and stage lights. Currently, in high-power lighting systems, achieving higher brightness typically relies on increasing the luminous power of the light source. However, as the luminous power of the light source increases, the temperature of the color wheel as it processes the emitted light also increases, and high temperatures negatively impact the performance of the color wheel.
[0004] Related technologies include adding extra fans and fan motors to cool the color wheel, but this can easily lead to a larger overall device size. Utility Model Content
[0005] Embodiments of this application provide a color wheel assembly and a lighting device to improve the aforementioned technical problems.
[0006] The embodiments of this application improve the above-mentioned technical problems through the following technical solutions.
[0007] An embodiment of this application provides a color wheel assembly, which includes a phosphor; an adapter, the phosphor being thermally connected to the adapter; a heat insulation component, the heat insulation component being connected to the adapter, the heat insulation component having a lower thermal conductivity than the adapter; a drive module, the drive end of the drive module being connected to the heat insulation component and adapted to drive the adapter and the phosphor to rotate through the heat insulation component, the drive module being opposite to the inner ring space of the adapter; and a fan blade, the fan blade being connected to the adapter, the phosphor being disposed on the side of the adapter away from the fan blade, the rotation of the drive end of the drive module being adapted to drive the adapter to rotate, and the adapter driving the fan blade to rotate.
[0008] In some embodiments, the phosphor includes a thermally conductive substrate and a wavelength conversion layer. The thermally conductive substrate is thermally connected to the side of the adapter away from the fan blade, and the wavelength conversion layer is disposed on the side of the thermally conductive substrate away from the adapter. The thermal conductivity of the thermally conductive substrate is greater than that of the adapter.
[0009] In some embodiments, the thermally conductive substrate is a ceramic component, and / or the adapter is a metal component, and / or the thermal insulation component is a metal component.
[0010] In some embodiments, there are multiple fan blades, and the multiple fan blades and the drive module are located on the same side of the adapter, with the multiple fan blades surrounding the drive module.
[0011] In some embodiments, the adapter and the fan blade are integrally formed, or the fan blade is detachably connected to the adapter.
[0012] In some embodiments, the adapter is provided with a plurality of spaced ventilation holes, all of which are located on the inner ring side of the phosphor or the inner ring side of the fan blade. Each ventilation hole extends through the opposite sides of the adapter and avoids the heat insulation component.
[0013] In some embodiments, the adapter and the multiple fan blades are integrally formed, or the multiple fan blades are detachably connected to the adapter.
[0014] In some embodiments, the phosphor, the adapter, and the heat insulation component are all annular, and the inner annular space of the phosphor, the inner annular space of the adapter, and the inner annular space of the heat insulation component are sequentially connected, with the driving module and the inner annular space of the adapter being opposite each other.
[0015] In some embodiments, the device further includes a housing, which has at least one heat dissipation structure, including a heat-conducting pillar, fins, a heat-conducting block, or a heat-conducting protrusion.
[0016] In some embodiments, the color wheel assembly further includes a volute housing and a cover located within the housing, the volute housing and the cover together forming an accommodating space, the adapter being rotatably located within the accommodating space, the cover having an air inlet communicating with the accommodating space located on one axial side of the adapter, and the volute housing having an air outlet communicating with the accommodating space located on one radial side of the adapter.
[0017] An embodiment of this application provides a lighting device, which includes a laser light source and a color wheel assembly as described in any of the above embodiments. A phosphor is located in the output light path of the laser light source and is used to receive the light emitted from the laser light source.
[0018] In any of the above embodiments of this application, the phosphor of the color wheel assembly is thermally connected to the adapter, and a heat insulation component is connected to the adapter. The thermal conductivity of the heat insulation component is lower than that of the adapter. The drive end of the drive module is connected to the heat insulation component and is adapted to drive the adapter and phosphor to rotate through the heat insulation component. A fan blade is connected to the adapter, and the phosphor is disposed on the side of the adapter opposite to the fan blade. The inner ring space of the drive module and the connector is opposite. The rotation of the drive end of the drive module is adapted to drive the adapter to rotate, and the adapter drives the fan blade to rotate. In this way, the heat generated by the phosphor is transferred to the adapter for heat dissipation, which helps to reduce the temperature of the phosphor. Furthermore, the fan blade can drive the surrounding air to flow during rotation, which helps to improve the convective heat transfer effect between the phosphor and the surrounding air, and also helps to improve the convective heat transfer effect between the adapter and the surrounding air, so that the heat of the phosphor and the adapter can be dissipated to the surrounding air more quickly. Since the phosphor and fan blades are driven by the same drive module, there is no need to configure separate drive structures for the phosphor and fan blades, which helps to reduce the number of parts and the space occupied within the housing, thereby facilitating the miniaturization of the color wheel assembly. Furthermore, the heat insulation component helps to reduce the heat generated by the phosphor from being transferred to the drive module via the adapter, thus reducing the thermal impact of the phosphor on the drive module and helping to reduce the likelihood of drive module failure due to overheating. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 Schematic diagrams illustrating the structure of lighting devices provided in some embodiments of this application are shown.
[0021] Figure 2 Example Figure 1 The embodiment provides a schematic diagram of the structure of the color wheel assembly of the lighting device.
[0022] Figure 3 Example Figure 2 An exploded view of the color wheel assembly provided in the embodiment.
[0023] Figure 4 The diagram illustrates the structure of the adapter and fan blades of the color wheel assembly provided in some embodiments of this application.
[0024] Figure 5 Schematic diagrams illustrating the structure of the adapter and fan blades of the color wheel assembly provided in other embodiments of this application are shown.
[0025] Figure 6 A schematic diagram illustrating the structure of the housing of a color wheel assembly provided in some embodiments of this application is shown.
[0026] Figure 7 Schematic diagrams illustrating the structure of color wheel assemblies provided in other embodiments of this application are shown.
[0027] Figure 8 Example Figure 7 An exploded view of the color wheel assembly provided in the embodiment. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.
[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0030] See Figure 1 The embodiments of this application provide a color wheel assembly 100, which can be applied to lighting devices such as photographic lights, stage lights, and searchlights.
[0031] See Figures 2 to 3 In some embodiments, the color wheel assembly 100 includes a housing 10, a phosphor 20, an adapter 31, a heat insulation component 40, a drive module 50, and a fan blade 32. The phosphor 20 is thermally connected to the adapter 31, so the heat generated by the phosphor 20 is transferred to the adapter 31 for heat dissipation, which helps to reduce heat accumulation in the phosphor 20 and lower the temperature of the phosphor 20.
[0032] The adapter 31 is located inside the housing 10, and the heat insulation component 40 is connected to the adapter 31. The thermal conductivity of the heat insulation component 40 is lower than that of the adapter 31. The drive end of the drive module 50 is connected to the heat insulation component 40 and is adapted to drive the adapter 31 and the phosphor 20 to rotate via the heat insulation component 40. The fan blade 32 is connected to the adapter 31, and the phosphor 20 is disposed on the side of the adapter 31 opposite to the fan blade 32. The rotation of the drive end of the drive module 50 is adapted to drive the adapter 31 to rotate, and the adapter 31 drives the fan blade 32 to rotate. In this way, the fan blade 32 can push the surrounding air during rotation, and the air will in turn exert a reverse force on the fan blade 32, creating a flowing airflow around the fan blade 32. This allows the fan blade 32 to drive the surrounding airflow, which helps to improve the convective heat transfer effect between the phosphor 20 and the surrounding air, and also helps to improve the convective heat transfer effect between the adapter 31 and the surrounding air. This helps the heat of the phosphor 20 and the adapter 31 to be dissipated to the surrounding air more quickly. Since the phosphor 20 and the fan blade 32 are driven to rotate by the same drive module 50, it is not necessary to configure different drive structures for the phosphor 20 and the fan blade 32 separately. This helps to reduce the number of parts and the space occupied in the housing 10, thereby contributing to the miniaturization of the color wheel assembly 100.
[0033] In addition, the heat insulation component 40 helps to reduce the heat generated by the phosphor 20 from being transferred to the drive module 50 via the adapter 31, which helps to reduce the thermal impact of the phosphor 20 on the drive module 50, thereby helping to reduce the possibility of the drive module 50 failing due to overheating.
[0034] In some embodiments, the drive module 50 may be a drive motor, motor or other structure, or the drive module 50 may be a drive structure that includes a reducer.
[0035] In some embodiments, the thermal insulation element 40 can be a metal component. This helps the thermal insulation element 40 to have higher strength and toughness, and helps it to better withstand mechanical stress during rotation, while maintaining the integrity and stability of the structure.
[0036] In some embodiments, the heat insulation component 40 can be made of stainless steel, which helps the heat insulation component 40 to have a low thermal conductivity, so that the heat insulation component 40 can better reduce the heat transfer from the adapter 31 to the drive module 50, thereby helping to reduce the thermal impact of the phosphor 20 on the drive module 50.
[0037] In some embodiments, the phosphor 20 can be directly attached to the adapter 31 for thermally conductive connection. For example, if the adapter 31 is generally flat, the phosphor 20 can be directly attached to the plane of the adapter 31. In other embodiments, the phosphor 20 can also be indirectly connected to the adapter 31 through a thermally conductive medium such as thermal grease, thereby facilitating the transfer of heat from the phosphor 20 to the adapter 31 for heat dissipation.
[0038] In some embodiments, the phosphor 20 may be a reflective phosphor or a transmissive phosphor.
[0039] In some embodiments, the phosphor 20 may include a thermally conductive substrate 21 and a wavelength conversion layer 22. The thermally conductive substrate 21 is thermally connected to the side of the adapter 31 opposite to the fan blade 32, and the wavelength conversion layer 22 is disposed on the side of the thermally conductive substrate 21 opposite to the adapter 31. The thermal conductivity of the thermally conductive substrate 21 is greater than that of the adapter 31. In this way, the heat generated by the phosphor 20 is facilitated to be transferred to the thermally conductive substrate 21 for heat dissipation. The thermally conductive substrate 21 can both dissipate heat to the surrounding air and transfer heat to the adapter 31 and the fan blade 32 for heat dissipation, thereby helping to reduce heat accumulation in the phosphor 20 and helping to lower the temperature of the phosphor 20.
[0040] In some embodiments, the thermally conductive substrate 21 may be a ceramic component. Ceramic components have good thermal stability and a low coefficient of thermal expansion, which helps the thermally conductive substrate 21 to maintain stable physical properties and not easily deformed in high-temperature environments.
[0041] In some embodiments, the adapter 31 can be a metal part. This helps the adapter 31 to have higher strength and toughness, and helps the adapter 31 to better withstand mechanical stress during rotation, while maintaining the integrity and stability of the structure.
[0042] In some embodiments, the adapter 31 may be made of aluminum, copper, or other materials, which helps to improve the heat conduction of the adapter 31.
[0043] In some embodiments, the adapter 31 may be provided with a plurality of ventilation holes 311, which are spaced apart. Each ventilation hole 311 extends through the opposite sides of the adapter 31 and avoids the heat insulation member 40. The plurality of ventilation holes 311 may be located on the inner ring side of the phosphor 20 or the inner ring side of the fan blade 32.
[0044] Thus, the ventilation hole 311 helps increase the airflow path, enhances airflow inside the housing 10, and accelerates gas circulation, thereby improving the efficiency of convective heat dissipation. Furthermore, during the process of the phosphor 20 transferring heat to the adapter 31, the ventilation hole 311 avoids the connection area with the phosphor 20, resulting in less heat generation by the phosphor 20. Moreover, the structural absence of the adapter 31 at the ventilation hole 311, due to the lower heat transfer efficiency of air compared to the adapter 31, leads to lower heat transfer efficiency at the ventilation hole 311. This allows the ventilation hole 311 to act as a thermal resistance hole, further reducing the heat transfer from the phosphor 20 to the drive module 50.
[0045] In this application, the term "multiple" means two or more, for example, the number of ventilation holes 311 can be two, three, four, five, six or other numbers.
[0046] In some embodiments, the plurality of ventilation holes 311 may be arranged in a ring.
[0047] In some embodiments, the ventilation hole 311 may be generally round, elliptical, waist-shaped, elongated, polygonal, or other shapes.
[0048] In some embodiments, the fan blade 32 can be fixed to the adapter 31 in various ways, and the fan blade 32 can be directly or indirectly connected to the fixing surface of the adapter 31. For example, the fan blade 32 can be connected to the side of the adapter 31 opposite to the phosphor 20, so that the rotation of the adapter 31 can drive the fan blade 32 to rotate. In some embodiments, the fan blade 32 can be connected to the drive module 20, and the fan blade 32 can be fixed relative to the drive end of the drive module 50 in various ways, and the fan blade 32 can be directly or indirectly connected to the drive end of the drive module 50. For example, the fan blade 32 can be connected to the drive end of the drive module 50, so that the drive end of the drive module 50 can drive the fan blade 32 to rotate.
[0049] In some embodiments, the fan blade 32 is connected to the drive end of the drive module 50. For example, the fan blade 32 can be connected to the outer cylindrical surface of the drive end of the drive module 50. The fan blade 32 and the outer cylindrical surface of the drive end of the drive module 50 can be connected by fasteners such as screws and bolts.
[0050] In some embodiments, when the fan blade 32 is connected to the adapter 31 and the phosphor 20 is disposed on the side of the adapter 31 away from the fan blade 32, the phosphor 20 and the fan blade 32 are dispersed on both sides of the adapter 31. This not only helps to make full use of the space on both sides of the adapter 31, but also helps to avoid placing the phosphor 20 and the fan blade 32 on the same side of the adapter 31, which would prevent the heat around the phosphor 20 from being dissipated quickly, thus helping to better dissipate heat from the phosphor 20.
[0051] In some embodiments, the adapter 31 and the fan blade 32 can be a single-piece molded structure, which helps reduce the number of parts in the color wheel assembly 100, eliminates additional assembly steps, simplifies the production process, reduces assembly errors, and improves production efficiency and product quality consistency. Furthermore, the single-piece molded structure helps reduce the difference in thermal expansion between the adapter 31 and the fan blade 32, enhances their thermal stability, reduces deformation or cracking caused by temperature changes, and extends their service life.
[0052] In some embodiments, the adapter 31 and the fan blade 32 can be integrally formed by a mold.
[0053] In some embodiments, the fan blade 32 is detachably connected to the adapter 31. In this way, when the fan blade 32 is damaged or damaged due to abnormal force, the user can selectively replace only the damaged fan blade 32 without replacing the adapter 31, which helps to reduce maintenance costs.
[0054] In some embodiments, the fan blade 32 can be detachably connected to the adapter 31 via a snap-fit structure, fasteners, or the like. The fasteners can be screws, bolts, or the like.
[0055] In some embodiments, such as Figure 4 As shown, the fan blade 32 can be perpendicular to the adapter 31; or, as... Figure 5 As shown, the fan blades 32 and the adapter 31 can be tilted. This vertical or tilted arrangement of the fan blades 32 helps optimize the airflow path, reduces air resistance, and allows the adapter 31 to more effectively accelerate gas flow within the housing 10, improving convective heat dissipation performance. Furthermore, the tilted arrangement of the fan blades 32 can disperse the mechanical stress generated during rotation, helping to reduce the risk of breakage or deformation of the fan blades 32, and contributing to improved stability and durability of the color wheel assembly 100.
[0056] In some embodiments, the number of fan blades 32 can be multiple, and the multiple fan blades 32 and the drive module 50 can all be located on the same side of the adapter 31, and the multiple fan blades 32 can surround the drive module 50. In this way, the airflow formed by the fan blades 32 can flow through the circumference of the drive module 50, improving the airflow effect, helping to reduce the heat accumulation of the drive module 50, thereby better dissipating heat from the drive module 50 and improving the heat dissipation performance of the adapter 31.
[0057] In some embodiments, the height dimension of the fan blade 32 along the axial direction of the adapter 31 may be greater than, equal to or less than the height dimension of the drive module 50 along the axial direction of the adapter 31.
[0058] See Figures 2 to 3In some embodiments, the phosphor 20, the adapter 31, and the heat insulation component 40 can all be annular. The inner annular space 23 of the phosphor 20, the inner annular space 312 of the adapter 31, and the inner annular space 410 of the heat insulation component 40 are sequentially connected, and the driving module 50 is opposite to the inner annular space 312 of the adapter 31. In this way, the airflow that helps to form with the adapter 31 can sequentially pass through the inner annular space 23 of the phosphor 20, the inner annular space 312 of the adapter 31, and the inner annular space 410 of the heat insulation component 40 to exchange heat with the driving module 50. This helps to increase the contact area between the driving module 50 and the airflow, helps to reduce the heat accumulation in the driving module 50, and helps to lower the temperature of the driving module 50.
[0059] In some embodiments, the adapter 31 may be generally ring-shaped. For example, the adapter 31 may be generally ring-shaped, elliptical ring-shaped, square ring-shaped, pentagonal ring-shaped, hexagonal ring-shaped, or other shapes.
[0060] In some embodiments, the heat insulation element 40 may be generally annular. For example, the heat insulation element 40 may be generally annular, elliptical, square, pentagonal, hexagonal, or other shapes.
[0061] In some embodiments, the housing 10 may be provided with at least one heat dissipation structure 11, which may include heat-conducting pillars, fins, heat-conducting blocks or heat-conducting protrusions.
[0062] This helps increase the contact area between the housing 10 and the air, accelerating the dissipation of heat from the housing 10. In addition, the heat dissipation structure 11 can also strengthen the structure of the housing 10, helping to improve the mechanical strength and stability of the housing 10 and reduce deformation caused by thermal expansion and contraction.
[0063] In some embodiments, such as Figure 3 As shown, the heat dissipation structure 11 can be located inside the housing 10, which helps to increase the contact area between the housing 10 and the air inside the housing 10, and helps to transfer the heat generated by the phosphor 20 and the drive module 50 to the housing 10.
[0064] In some embodiments, such as Figure 6 As shown, the heat dissipation structure 11 can be located outside the housing 10, which helps to increase the contact area between the housing 10 and the outside air, and dissipate the heat of the housing 10 to the outside air.
[0065] See Figures 7 to 8In some embodiments, the color wheel assembly 100 may further include a volute cover 61 and a cover 62 located within the housing 10. The volute cover 61 and the cover 62 together form a receiving space 63. The adapter 31 is rotatably located within the receiving space 63. The cover 62 is provided with an air inlet 621 communicating with the receiving space 63. The air inlet 621 is located on the axial side of the adapter 31. The volute cover 61 is provided with an air outlet 611 communicating with the receiving space 63. The air outlet 611 is located on the radial side of the adapter 31.
[0066] Thus, the volute housing 61 and cover 62 help guide airflow along a predetermined path, for example, guiding airflow through the air inlet 621 into the receiving space 63, and accelerating it via the adapter 31 before it is discharged from the air outlet 611. This helps to form an effective airflow circulation, enhances the ability of convective heat dissipation, improves the heat exchange efficiency of the fan blades 32 within the receiving space 63, and improves heat dissipation efficiency. Furthermore, the volute housing 61 and cover 62 help reduce turbulence during airflow, reduce noise generation, and contribute to a quieter operating environment, making the color wheel assembly 100 suitable for noise-sensitive applications.
[0067] In one embodiment, the color wheel assembly 100 may not have a volute cover, but only a cover 62, which can also improve the heat exchange efficiency of the fan blades 32 and further improve heat dissipation.
[0068] Furthermore, the volute cover 61 is also provided with a first screw hole for fixing to the housing 10 and a second screw hole 613 for fixing to the cover 62. The volute cover 61 is fixed to the housing 10 by screw locking, and the cover 62 is fixed to the volute cover 61 by screw locking.
[0069] See Figure 1 This application provides an illumination device 1000, which can be a photographic light, stage light, searchlight, etc. The illumination device 1000 includes a laser light source 200 and a color wheel assembly 100 as described in any of the above embodiments. The phosphor 20 is located in the output light path of the laser light source 200 and is used to receive the light emitted from the laser light source 200.
[0070] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection; they can be a direct connection or an indirect connection via an intermediate medium; they can refer to the internal communication of two components; they can refer to mere surface contact; or they can refer to surface contact connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0071] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this application, as well as the features of different embodiments or examples.
[0072] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.
Claims
1. A color wheel assembly, characterized in that, include: case; Fluorescent particles; An adapter is located inside the housing, and the phosphor is thermally connected to the adapter; A thermal insulation component, which is connected to the adapter, wherein the thermal conductivity of the thermal insulation component is less than that of the adapter; A driving module, wherein the driving end of the driving module is connected to the heat insulation component and is adapted to drive the adapter and the phosphor to rotate through the heat insulation component; as well as The fan blade is connected to the adapter. The phosphor is disposed on the side of the adapter opposite to the fan blade. The rotation of the drive end of the drive module is adapted to drive the adapter to rotate, and the adapter drives the fan blade to rotate. The phosphor, the adapter, and the heat insulation component are all annular. The inner annular space of the phosphor, the inner annular space of the adapter, and the inner annular space of the heat insulation component are sequentially connected. The driving module is opposite to the inner annular space of the adapter. The airflow generated by the rotation of the fan blades passes sequentially through the inner annular space of the phosphor, the inner annular space of the adapter, and the inner annular space of the heat insulation component.
2. The color wheel assembly according to claim 1, characterized in that, The phosphor includes a thermally conductive substrate and a wavelength conversion layer. The thermally conductive substrate is thermally connected to the side of the adapter away from the fan blade. The wavelength conversion layer is disposed on the side of the thermally conductive substrate away from the adapter. The thermal conductivity of the thermally conductive substrate is greater than that of the adapter.
3. The color wheel assembly according to claim 2, characterized in that, The thermally conductive substrate is a ceramic component, and / or the adapter is a metal component, and / or the thermal insulation component is a metal component.
4. The color wheel assembly according to claim 1, characterized in that, The number of fan blades is multiple, and the multiple fan blades and the drive module are all located on the same side of the adapter, with the multiple fan blades surrounding the drive module.
5. The color wheel assembly according to claim 1, characterized in that, The adapter and the fan blade are integrally formed, or the fan blade is detachably connected to the adapter.
6. The color wheel assembly according to claim 1, characterized in that, The adapter is provided with a plurality of spaced ventilation holes, all of which are located on the inner ring side of the phosphor or the inner ring side of the fan blade. Each ventilation hole extends through the opposite sides of the adapter and avoids the heat insulation component.
7. The color wheel assembly according to claim 1, characterized in that, The housing is provided with at least one heat dissipation structure, which includes heat-conducting pillars, fins, heat-conducting blocks, or heat-conducting protrusions.
8. The color wheel assembly according to claim 7, characterized in that, The color wheel assembly also includes a volute cover and a cover located within the housing. The volute cover and the cover together form an accommodating space. The adapter is rotatably located within the accommodating space. The cover has an air inlet communicating with the accommodating space, and the air inlet is located on the axial side of the adapter. The volute cover has an air outlet communicating with the accommodating space, and the air outlet is located on the radial side of the adapter.
9. A lighting device, characterized in that, include: Laser source; as well as According to any one of claims 1 to 8, the phosphor is located in the outgoing light path of the laser light source and is used to receive the light emitted from the laser light source.