CN111258161A - Temperature control structure of wavelength conversion device - Google Patents
Temperature control structure of wavelength conversion device Download PDFInfo
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- CN111258161A CN111258161A CN201811464297.1A CN201811464297A CN111258161A CN 111258161 A CN111258161 A CN 111258161A CN 201811464297 A CN201811464297 A CN 201811464297A CN 111258161 A CN111258161 A CN 111258161A
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- temperature control
- wavelength conversion
- thickness
- control structure
- driving device
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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Abstract
The present invention provides a temperature control structure of a wavelength conversion device, comprising: a wavelength conversion material for wavelength converting the excitation light; a substrate for carrying the wavelength converting material; a driving device for driving the substrate; and the temperature control part is positioned between the substrate and the driving device and is used for controlling the temperature of the driving device. The temperature control structure of the wavelength conversion device utilizes the heat conduction characteristic and uses the heat insulation structure to realize the temperature control of the wavelength conversion material substrate, thereby reducing the temperature of the driving motor; moreover, the temperature control structure of the invention can enhance the heat dissipation of the wavelength conversion device; and the falling danger of the photosensitive label can be reduced, and the reliability of the driving device is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a temperature control structure of a wavelength conversion device.
Background
In the current laser projection display products, most of laser light source systems adopt a laser excitation phosphor light-emitting mode to realize illumination of the projection system, wherein the light source system mainly obtains time-series light output through a fluorescent wheel and a light path structure thereof to obtain white light, obtains blue light by utilizing a notch on the fluorescent wheel, and combines the blue light with other yellow-green light excited on a disk body to form the white light for the projection system to use.
With the more mature laser technology, the laser fluorescent light source has gradually become one of the mainstream light source schemes in the display and illumination fields. One of the core components in the laser fluorescence light source is a wavelength conversion device, which is a heating element in the laser fluorescence light source, and the heating is larger as the laser power is increased. However, other components in the wavelength conversion device often have certain requirements on temperature, for example, the driving motor cannot withstand too high temperature, for example, when the driving motor is a 17S series or 28S series motor in Nidec of japan, the temperature resistance specification of the motor part is within 85 degrees, and if the temperature is too high, the reliability of the wavelength conversion device is affected, thereby affecting the reliability of the laser fluorescent light source.
In view of the above problems, the present invention provides a temperature control structure for a wavelength conversion device.
Disclosure of Invention
In order to solve the above technical problem, an aspect of the present invention provides a temperature control structure of a wavelength conversion device, including: a wavelength conversion material for wavelength converting the excitation light; a substrate for carrying the wavelength converting material; a driving device for driving the substrate; and the temperature control part is positioned between the substrate and the driving device and is used for controlling the temperature of the driving device.
Optionally, the temperature control part is a heat insulation structure.
Optionally, the thermal insulation structure is an adhesive glue.
Optionally, the thermal insulation structure has a thermal conductivity of less than 3W/(K · m).
Optionally, the insulating structure is an insulating panel.
Optionally, the thickness of the heat insulation plate is greater than or equal to that of the fixing piece.
Optionally, the insulating sheet material is selected from glass, plastic, ceramic, or metal.
Optionally, the heat insulation structure comprises an annular ring structure, the upper part of which is connected with the base plate, and the bottom part of which is connected with the driving device fixing structure.
Optionally, the thickness of the annular ring is greater than the thickness of the fastener.
Optionally, the annular ring body has a thickness greater than the sidewall thickness.
Optionally, the heat insulation structure is a heat dissipation structure.
Optionally, the thermal insulation structure can increase the heat dissipation area, including concentric circles, i-shaped or king-shaped structures.
Optionally, the insulating structure is capable of forming a turbulent flow, including a fan blade structure.
Optionally, the thickness of the insulation structure is greater than the thickness of the fixture.
Optionally, the insulating structure has a thickness greater than the sidewall thickness.
In summary, the temperature control structure of the wavelength conversion device of the present invention utilizes the thermal conductivity, and uses the thermal insulation structure to control the temperature of the wavelength conversion material substrate, thereby reducing the temperature of the driving motor; moreover, the temperature control structure of the invention can enhance the heat dissipation of the wavelength conversion device; and the falling danger of the photosensitive label can be reduced, and the reliability of the driving device is improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.
In the drawings:
FIG. 1 shows a temperature control structure of a wavelength conversion device in a first embodiment of the present inventionSchematic diagram of；
FIG. 2 shows a temperature control structure of a wavelength conversion device in a second embodiment of the present inventionSchematic diagram of；
FIG. 3 shows a temperature control structure of a wavelength conversion device in a third embodiment of the present inventionSchematic diagram of；
FIG. 4 shows a temperature control structure of a wavelength conversion device in a fourth embodiment of the present inventionSchematic diagram of；
FIG. 5 is a schematic diagram of a conventional light source structure of a laser projector;
FIG. 6 is a schematic diagram of another conventional light source structure of a laser projector;
fig. 7A and 7B show side views of a wavelength conversion device in a present laser projector.
Description of the reference numerals
101 light source
102 convex lens
103 concave lens
104, 1041, 1042 diffusion sheet
105 dichroic mirror
106, 109 lens
107 substrate
108 wavelength converting material
111, 112, 113, 114, 115, 116, 117 rays
2 wavelength conversion device
215 connecting wire
216 drive device
300 heat insulation structure
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.
In order to thoroughly understand the present invention, a detailed description will be provided below in order to explain the technical solution of the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
As shown in fig. 5, a light source structure of a laser projector includes a laser light source 101, and a light path shaping element (e.g., a convex lens 102, a concave lens 103), a diffusion sheet, a dichroic mirror 105, and a fluorescent wheel sequentially disposed on a light path of the laser light source 101, wherein the fluorescent wheel includes a substrate 107 and a wavelength conversion material 108 disposed on a surface of the substrate 107, and the wavelength conversion material 108 is used for generating light of different colors, and the light source structure further includes a plurality of reflective components for guiding the light emitted from the laser light source 101 to pass through the fluorescent wheel and then to be projected to the dichroic mirror 105 again to form a part of emergent light.
In the following, the blue laser emitted by the laser light source is taken as an example to be described in detail with reference to fig. 5, and the solid line in fig. 5 shows the optical path of the blue laser. Blue laser emitted by the light source 101 passes through the convex lens 102 and the concave lens 103 in the light path shaping element, enters the diffusion sheet 1041, further enters the dichroic mirror 105 after passing through the diffusion sheet 1041, passes through the dichroic mirror 105, and then directly exits through a notch or a transparent part of the fluorescent wheel, and the blue laser is emitted through the dichroic mirror 105 after being wound by a circle through the plurality of reflection assemblies to form part of emergent light. The light path of the fluorescent part is shown by a dotted arrow in the figure, blue laser irradiates the wavelength conversion material 108 on the fluorescent wheel to generate received laser, light is formed after the received laser is reflected, emergent light is formed by the reflection of the dichroic mirror 105, and the emergent light of the received laser and the emergent light of the blue light are combined to obtain output white light.
Another light source structure of a laser projector is shown in fig. 6, the laser projector includes a laser light source 101, and a light path shaping element (e.g. a convex lens 102, a concave lens 103), a diffusion sheet, a dichroic mirror 105 and a fluorescent wheel sequentially arranged on the light path of the laser light source, wherein the fluorescent wheel includes a substrate 107 and a wavelength conversion material 108 arranged on the surface of the substrate 107, the wavelength conversion material 108 is used for generating light with different colors, and both the light emitted by the light source 101 and the excited fluorescence are reflected back to the dichroic mirror 105 and output by reflection through the dichroic mirror 105.
In the following, the blue laser emitted by the laser light source is taken as an example to be described in detail with reference to fig. 6, and the solid line in fig. 6 shows the optical path of the blue laser. Blue laser emitted by a light source 101 passes through a convex lens 102 and a concave lens 103 in a light path shaping element, enters a diffusion sheet 104, further enters a dichroic mirror 105 after passing through the diffusion sheet 104, passes through the dichroic mirror 105, enters the surface of a fluorescence wheel and is reflected by the fluorescence wheel, the light path direction of the blue laser and reflected fluorescence is shown as a dotted line in the figure, the blue laser irradiates a wavelength conversion material 108 on the fluorescence wheel to generate a laser, light is formed after the laser is reflected and is reflected by the dichroic mirror 105 to form emergent light, and the emergent light of the laser and the emergent light obtained after the blue light is reflected are combined to obtain output white light.
A specific structure of the wavelength conversion device in the light source structure shown in fig. 5 and 6 is shown, and exemplarily, as shown in fig. 7A and 7B, the wavelength conversion device 2 is a rotary type wavelength conversion device that performs a periodic rotation around its rotation axis, and optionally, the wavelength conversion device includes one of a wheel type wavelength conversion device and a barrel type wavelength conversion device. In one example, as shown in fig. 7B, the wavelength conversion device further includes a driving device 216 for driving the wavelength conversion device 2 to rotate according to a predetermined period. Alternatively, the drive means 216 comprises a motor, the base plate being substantially disc-shaped, the central portion of which is fixed to the shaft portion of the motor.
In one example, as shown in fig. 7A and 7B, the wavelength conversion device further includes a connection line 215, the connection line 215 electrically connects the driving device 216 to an external power source to power the driving device 216 to rotate the wavelength conversion device.
Fig. 7B is a structural diagram of a conventional wavelength conversion device, in which a wavelength conversion material is fixed on a substrate below the wavelength conversion material, the substrate is generally made of a material with better heat conduction/dissipation performance, the wavelength conversion material 108 may be also made in the substrate 107, and the substrate 107 is fixed on a driving device 216 below the wavelength conversion material, and the fixing manner may be adhesive bonding or other mechanical fixing manners. When the excitation light irradiates on the wavelength conversion material, the wavelength conversion material can emit wavelength conversion light, and because the wavelength conversion material has the problem of conversion efficiency, the excitation light incident to the wavelength conversion material cannot be completely converted into stimulated light, therefore, part of the excitation light can be converted into heat at the same time, and the heat can be quickly transmitted to the driving device 216 through the substrate, so that the temperature of the driving device 216 is quickly increased, even exceeds the motor temperature specification value, and the reliability of the wavelength conversion device is influenced. Therefore, the prior art has the disadvantages that the substrate is directly connected with the driving motor, heat can be quickly transferred to the motor, and the temperature rise of the motor can be quick; moreover, after the temperature of the motor rises, the noise of the motor during working can be amplified, and the rotating speed can be unstable when the temperature reaches a certain degree; moreover, the motor reliability is reduced due to the temperature rise of the motor; further, the temperature of the motor is increased, so that the photosensitive label attached to the surface of the motor rotor is in a risk of falling off.
Therefore, the present invention provides a structure of a multi-primary wavelength conversion device, which can solve the problems of the prior art well, aiming at the disadvantages of the prior wavelength conversion device.
In order to solve the above problems, the present invention provides a temperature control structure of a wavelength conversion device, comprising: a wavelength conversion material for wavelength converting the excitation light; a substrate for carrying the wavelength converting material; a driving device for driving the substrate; and the temperature control part is positioned between the substrate and the driving device and is used for controlling the temperature of the driving device.
The temperature control structure of the wavelength conversion device utilizes the heat conduction characteristic and uses the heat insulation structure to realize the temperature control of the wavelength conversion material substrate, thereby reducing the temperature of the driving motor; moreover, the temperature control structure of the invention can enhance the heat dissipation of the wavelength conversion device; and the falling danger of the photosensitive label can be reduced, and the reliability of the driving device is improved.
Next, the temperature control structure of the wavelength conversion device of the present invention will be described in detail with reference to fig. 1 to 4. Wherein fig. 1 shows a schematic view of a temperature controlled junction of a wavelength conversion device in a first embodiment of the invention; fig. 1 shows a schematic diagram of a temperature control structure of a wavelength conversion device in a first embodiment of the present invention; FIG. 2 shows a schematic diagram of a temperature control structure of a wavelength conversion device in a second embodiment of the present invention; FIG. 3 shows a schematic diagram of a temperature control structure of a wavelength conversion device in a third embodiment of the present invention; fig. 4 shows a schematic diagram of a temperature control structure of a wavelength conversion device in a fourth embodiment of the present invention.
As a first embodiment, as shown in fig. 1, the wavelength conversion device of the present invention includes a substrate 107, a wavelength conversion material 108, a temperature control section 300, and a driving device 216. A temperature control portion is used between the substrate 107 carrying the wavelength conversion material 108 and the driving device 216, and for example, the temperature control portion is made of adhesive glue, wherein the adhesive glue has poor thermal conductivity or increases the thickness of the adhesive glue, so as to increase the thermal resistance between the substrate and the motor and reduce the heat transfer to the motor. Illustratively, the thermal conductivity is preferably less than 3W/(K.m), and in a more preferred embodiment, the thermal conductivity is further preferably less than 2W/(K.m), although it may be still further preferably less than 0.8W/(K.m). When the thermal conductivity of the adhesive is small, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be reduced, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced; when the thickness of the adhesive is large, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be generated, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced; when the thermal conductivity of the adhesive is small and the thickness of the adhesive is thick, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be increased, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced.
Therefore, the temperature control unit 300 may select an adhesive with a poor thermal conductivity and/or a large thickness, so as to control the temperature of the driving device 216, thereby reducing the temperature of the driving device, enhancing the heat dissipation of the wavelength conversion device, reducing the falling risk of the photosensitive label, and ensuring the reliability of the wavelength conversion device.
As a second embodiment, as shown in fig. 2, the wavelength conversion device of the present invention includes a substrate 107, a wavelength converting material 108, a temperature control section 300, and a driving device 216. A temperature control portion 300 is added between the substrate 107 carrying the wavelength converting material 108 and the driving device 216, and is exemplarily selected to be a heat insulation structure having a large thermal resistance so as to minimize heat transfer to the motor.
Illustratively, the thermal insulation structure may be made of a material having poor thermal conductivity, such as glass, plastic, ceramic, etc. The heat insulation structure is designed to be equivalent in size and shape with the bearing part of the driving device. The thickness of the heat insulation structure can be selected and designed according to the load specification of the motor, wherein H & lth & gt is H, and the larger the thermal resistance is considered as much as possible in the design process. H is the thickness of the insulation structure and H is the thickness of the fixture on the drive 216 through which the insulation structure and the drive 216 are connected.
When the thermal conductivity of the thermal insulation structure is small, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be reduced, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced; when the thickness of the heat insulation structure is large, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be generated, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced; when the thermal conductivity of the thermal insulation structure is small and the thickness of the thermal insulation structure is thick, the heat generated on the wavelength conversion material 108 cannot be effectively conducted to the driving device 216, so that the temperature of the driving device 216 cannot be rapidly increased, the specification value of the temperature of the driving device cannot be increased, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced.
Therefore, the temperature control unit 300 may select a thermal insulation structure with a poor thermal conductivity and/or a large thickness, so as to control the temperature of the driving device 216, thereby reducing the temperature of the driving device, enhancing the heat dissipation of the wavelength conversion device, reducing the falling risk of the photosensitive label, and ensuring the reliability of the wavelength conversion device.
As a third embodiment, as shown in fig. 3, the wavelength conversion device of the present invention includes a substrate 107, a wavelength converting material 108, a temperature control section 300, and a driving device 216.
Compared to the first and second embodiments, the temperature control portion 300 may exemplarily select a thermal insulation structure, and the thermal insulation structure may also adopt a material with better thermal conductivity/thermal emissivity, and be designed to increase thermal resistance, for example, to increase the path of heat conduction to the driving device 216, or to decrease the path of heat conduction to the motor to increase thermal resistance, where H > H, preferably, H > d, and d may be designed to be smaller to increase thermal resistance. H is the thickness of the insulation structure, d is the thickness of the insulation structure side wall, and H is the thickness of the fixture on which the drive 216 is located, by which the insulation structure and the drive 216 are connected.
Although the thermal conductivity/emissivity of the thermal insulating structural material itself is good, as shown in figure 3, the heat insulation structure comprises an annular ring body structure, the upper part of the annular ring body structure is connected with a substrate, the bottom of the annular ring body structure is connected with a driving device fixing structure, the heat insulation structure has larger heat resistance, the thickness H of the annular ring body structure is larger, the larger the thermal resistance is, the smaller the side wall d of the annular ring body structure is, the larger the thermal resistance is, when the thickness H is larger, the longer the heat conduction path is, thereby causing the thermal resistance of the heat insulating structure to become large, and when the side wall d thereof becomes small, the heat conduction path becomes narrow, resulting in an increase in the thermal resistance of the insulating structure, when the thermal resistance of the insulating structure is increased, the heat generated on the wavelength converting material 108 is not efficiently conducted to the driving device 216, thus, the temperature of the drive 216 does not rise rapidly, nor does it reach the specification value of the drive temperature, and simultaneously, the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced.
Therefore, the temperature control unit 300 may select a thermal insulation structure with good thermal conductivity but large thermal resistance, and the physical structure of the thermal insulation structure is designed to have a larger thickness and/or a narrower side wall, so as to realize temperature control of the driving device 216, further realize temperature reduction of the driving device, enhance heat dissipation of the wavelength conversion device, reduce the falling risk of the photosensitive label, and ensure reliability of the wavelength conversion device.
For example, the thermal insulation structure may also be made of a material with poor thermal conductivity, and the physical structure shown in fig. 3 is adopted, so that the thermal resistance of the thermal insulation structure is further increased, and thus a better thermal insulation effect is obtained, and the temperature control effect of the temperature control portion 300 is more significant.
As a fourth embodiment, as shown in fig. 4, the wavelength conversion device of the present invention includes a substrate 107, a wavelength converting material 108, a temperature control section 300, and a driving device 216.
Between the driver 216 and the substrate 107 carrying the wavelength converting material 108, a heat sink structure with good heat dissipation effect can be designed with a material with good thermal conductivity/thermal emissivity, so that most of the heat is dissipated to the environment while conducting the driver 216. The heat dissipation structure can be designed to have a structure with a larger heat dissipation area, such as a concentric circle/I-shaped structure and the like, which increases the heat dissipation area. The structure can also be designed to strengthen the air convection, such as the structure of fan blades and the like which can strengthen the air flow movement. H > H, D can be designed to be smaller to increase thermal resistance, and D can be designed to be larger as long as load is met and product use is not affected. H is the thickness of the insulation structure, D is the horizontal dimension of the insulation structure, D is the thickness of the insulation structure side wall, H is the thickness of the fixture on which the drive 216 is located, by which the insulation structure and the drive 216 are connected.
As shown in fig. 4, the thermal insulation structure has a fin-shaped structure, the shape of the fin-shaped structure can increase the heat dissipation area, the larger the thickness H of the thermal insulation structure is, the larger the heat dissipation area is, the smaller the sidewall D of the thermal insulation structure is, the larger the thermal resistance is, when the thickness H is larger, the longer the conduction path of heat is, the number of fin-shaped structures per unit length is increased, thereby greatly increasing the heat dissipation area, the heat is sufficiently dissipated in the environment during the conduction process, the larger the horizontal dimension D of the thermal insulation structure is, the larger the area of the fin-shaped structure is, the contact area with air is also sufficiently increased, the heat is sufficiently dissipated in the environment during the conduction process, when the sidewall D is smaller, the heat conduction path is narrowed, thereby causing the thermal resistance of the thermal insulation structure to be larger, when the thermal resistance of the thermal insulation structure is larger, the heat generated on the wavelength conversion material 108 cannot be effectively conducted, therefore, the temperature of the driving device 216 does not rise rapidly, the specification value of the temperature of the driving device is not generated, and the risk that the photosensitive label attached to the driving device 216 falls off due to high temperature is reduced.
Therefore, the temperature control unit 300 can select a thermal insulation structure with good thermal conductivity and sufficient heat dissipation, and the physical structure of the thermal insulation structure is designed to fully conduct and dissipate heat, so as to control the temperature of the driving device 216, reduce the temperature of the driving device, enhance the heat dissipation of the wavelength conversion device, reduce the falling risk of the photosensitive label, and ensure the reliability of the wavelength conversion device.
For example, the heat insulation structure may also be selected from other shapes, such as concentric circles, a Chinese character 'wang' shape or an i-shape, etc., to increase the heat dissipation area. Certainly, the structure that can strengthen the air convection can also be designed into, the structure that can strengthen the air current motion like flabellum structure to thereby can form the vortex and obtain better thermal-insulated effect, make the temperature control effect of temperature control portion 300 more showing.
From the above explanation of the first to fourth embodiments, it can be determined that the present invention has at least the following advantages: reducing the temperature of the motor; enhancing heat dissipation of the wavelength conversion device; and the falling risk of the photosensitive label is reduced. The technical purpose of the invention is further achieved, and the temperature of the motor during working and the temperature difference between the stator and the rotor are reduced; the risk that the photosensitive label attached to the motor falls off due to high temperature is reduced.
The explanation and description of the light source system of the present invention are completed so far, and the complete wavelength conversion device may further include other elements, which are not described herein again.
The light source system of the present invention can be applied in any application scenario where synthesized light is required, including but not limited to application in laser projectors, such as monolithic laser projectors. The temperature control structure of the wavelength conversion device of the present invention utilizes the heat conduction characteristic and uses the heat insulation structure to realize the temperature control of the wavelength conversion material substrate, thereby reducing the temperature of the driving motor; moreover, the temperature control structure of the invention can enhance the heat dissipation of the wavelength conversion device; and the falling danger of the photosensitive label can be reduced, and the reliability of the driving device is improved.
The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. It will also be appreciated by persons skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (15)
1. A temperature control structure of a wavelength conversion device, comprising:
a wavelength conversion material for wavelength converting the excitation light;
a substrate for carrying the wavelength converting material;
a driving device for driving the substrate;
and the temperature control part is positioned between the substrate and the driving device and is used for controlling the temperature of the driving device.
2. The temperature control structure according to claim 1, wherein the temperature control portion is a heat insulating structure.
3. The temperature control structure of claim 2, wherein the thermal insulation structure is an adhesive glue.
4. The temperature control structure of claim 2, wherein the insulating structure is a heat insulating panel.
5. The temperature control structure according to any one of claims 2 to 4, wherein the thermal conductivity of the temperature control portion is less than 3W/(K-m).
6. The temperature control structure of claim 4, wherein the thickness of the heat insulating plate is equal to or greater than the thickness of the fixing member.
7. The temperature control structure of claim 4 or 6, wherein the thermal insulation plate material is selected from glass, plastic, ceramic, or metal.
8. The temperature control structure of claim 2, wherein the heat shield structure comprises an annular ring structure having an upper portion connected to the base plate and a lower portion connected to the drive mechanism mounting structure.
9. The temperature control structure of claim 8, wherein the thickness of the annular ring is greater than the thickness of the fastener.
10. The temperature control structure of claim 8 or 9, wherein the thickness of the annular ring is greater than the sidewall thickness.
11. The temperature control structure of claim 2, wherein the thermal insulation structure is a heat dissipation structure.
12. The temperature control structure of claim 11, wherein the thermal insulation structure is capable of increasing a heat dissipation area and comprises a concentric circle, i-shaped, or king-shaped structure.
13. The temperature control structure of claim 11, wherein the thermal insulation structure is capable of creating turbulence, including a fan blade structure.
14. The temperature control structure of claim 12 or 13, wherein the thickness of the insulation structure is greater than the thickness of the fixing member.
15. The temperature control structure of claim 12 or 13, wherein the insulating structure has a thickness greater than the sidewall thickness.
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| CN201811464297.1A CN111258161A (en) | 2018-11-30 | 2018-11-30 | Temperature control structure of wavelength conversion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815477A (en) * | 2021-01-20 | 2022-07-29 | 中强光电股份有限公司 | Wavelength conversion module and projector |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202546620U (en) * | 2011-12-30 | 2012-11-21 | 深圳市光峰光电技术有限公司 | Wavelength conversion device and light emitting device |
| CN203549686U (en) * | 2013-10-16 | 2014-04-16 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device and relevant light source system and projection system |
| CN203733843U (en) * | 2013-12-31 | 2014-07-23 | 吴震 | Wavelength conversion device and light-emitting device |
| CN204176561U (en) * | 2014-08-04 | 2015-02-25 | 深圳市绎立锐光科技开发有限公司 | Fluorescence colour wheel and comprise the light source of this fluorescence colour wheel |
| CN204420882U (en) * | 2015-02-09 | 2015-06-24 | 深圳市绎立锐光科技开发有限公司 | Heat radiating type repaiies look colour wheel |
| CN105353578A (en) * | 2015-12-07 | 2016-02-24 | 杨阳 | Light source system and application thereof |
| CN205787550U (en) * | 2016-06-07 | 2016-12-07 | 深圳市光峰光电技术有限公司 | A kind of color block component and projection arrangement |
| CN206020915U (en) * | 2016-06-30 | 2017-03-15 | 扬州红新光电有限公司 | A kind of wavelength-conversion sheet of employing transmission substrate and light-emitting device |
| CN208903064U (en) * | 2018-08-21 | 2019-05-24 | 中强光电股份有限公司 | Projection arrangement and its fluorescence wheel apparatus |
| CN110737085A (en) * | 2018-07-18 | 2020-01-31 | 深圳光峰科技股份有限公司 | Wavelength conversion device |
| CN111123630A (en) * | 2018-11-01 | 2020-05-08 | 深圳光峰科技股份有限公司 | Wavelength conversion device, manufacturing method thereof, light emitting device and projection device |
-
2018
- 2018-11-30 CN CN201811464297.1A patent/CN111258161A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202546620U (en) * | 2011-12-30 | 2012-11-21 | 深圳市光峰光电技术有限公司 | Wavelength conversion device and light emitting device |
| CN203549686U (en) * | 2013-10-16 | 2014-04-16 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device and relevant light source system and projection system |
| CN203733843U (en) * | 2013-12-31 | 2014-07-23 | 吴震 | Wavelength conversion device and light-emitting device |
| CN204176561U (en) * | 2014-08-04 | 2015-02-25 | 深圳市绎立锐光科技开发有限公司 | Fluorescence colour wheel and comprise the light source of this fluorescence colour wheel |
| CN204420882U (en) * | 2015-02-09 | 2015-06-24 | 深圳市绎立锐光科技开发有限公司 | Heat radiating type repaiies look colour wheel |
| CN105353578A (en) * | 2015-12-07 | 2016-02-24 | 杨阳 | Light source system and application thereof |
| CN205787550U (en) * | 2016-06-07 | 2016-12-07 | 深圳市光峰光电技术有限公司 | A kind of color block component and projection arrangement |
| CN206020915U (en) * | 2016-06-30 | 2017-03-15 | 扬州红新光电有限公司 | A kind of wavelength-conversion sheet of employing transmission substrate and light-emitting device |
| CN110737085A (en) * | 2018-07-18 | 2020-01-31 | 深圳光峰科技股份有限公司 | Wavelength conversion device |
| CN208903064U (en) * | 2018-08-21 | 2019-05-24 | 中强光电股份有限公司 | Projection arrangement and its fluorescence wheel apparatus |
| CN111123630A (en) * | 2018-11-01 | 2020-05-08 | 深圳光峰科技股份有限公司 | Wavelength conversion device, manufacturing method thereof, light emitting device and projection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815477A (en) * | 2021-01-20 | 2022-07-29 | 中强光电股份有限公司 | Wavelength conversion module and projector |
| US11899350B2 (en) | 2021-01-20 | 2024-02-13 | Coretronic Corporation | Wavelength conversion module with heat insulation layers and projector including thereof |
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