CN107608168B - Color wheel module - Google Patents
Color wheel module Download PDFInfo
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- CN107608168B CN107608168B CN201710973181.XA CN201710973181A CN107608168B CN 107608168 B CN107608168 B CN 107608168B CN 201710973181 A CN201710973181 A CN 201710973181A CN 107608168 B CN107608168 B CN 107608168B
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- 238000005192 partition Methods 0.000 claims abstract description 13
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
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- 239000012790 adhesive layer Substances 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 23
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- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 2
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
-
- 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
-
- 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Projection Apparatus (AREA)
Abstract
The embodiment of the invention relates to the technical field of digital projection, and discloses a color wheel module, which comprises: the cooling device comprises a shell, a cooling device and a cooling device, wherein the shell is provided with an accommodating space which is divided into a color wheel mounting space, a connecting space and a cooling space; the partition plate is arranged in the connecting space and divides the connecting space into a first air flow channel and a second air flow channel, wherein the first air flow channel is respectively communicated with the color wheel mounting space and the cooling space, the second air flow channel is respectively communicated with the color wheel mounting space and the cooling space, and the color wheel mounting space, the first air flow channel, the cooling space and the second air flow channel are closed to form an air flow loop; and the color wheel is arranged in the color wheel mounting space. The heat exchange between the color wheel and the outside air is realized in the fully closed state of the shell, and the heat dissipation effect of the color wheel is effectively improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of digital projection, in particular to a color wheel module.
Background
A color wheel is a laboratory instrument for studying additive color mixing, and for projection devices, a color wheel is an integral part of separating and processing colors. The light source module in the projection equipment comprises an excitation light source and a color wheel positioned on the light path of the excitation light source, the working principle of the color wheel of the projector is that the color of the transmitted white light is separated, and the white light is rotated by a high-speed motor, then different monochromatic lights are sequentially separated out to be arranged on a designated light path, and finally a full-color image is synthesized and projected by other optical mechanical elements, specifically when the laser emitted by the excitation light source irradiates on the color wheel, the wavelength conversion material (e.g. phosphor) on the color wheel absorbs the excitation light and generates stimulated light beams of different wavelengths, meanwhile, the driving device on the color wheel can drive the color wheel to rotate at a high speed, so that the exciting light irradiates the fluorescent powder in different areas of the color wheel to emit laser beams with different colors, such as a red laser beam, a green laser beam and a blue laser beam, these differently colored laser beams may be combined into a combined beam for image projection display.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the related art: during the absorption of the laser light by the wavelength conversion material, a portion of the energy of the laser light is converted into heat, and the heat is absorbed by the surface material of the color wheel, thereby causing the temperature of the wavelength conversion material to increase and the excitation efficiency to decrease. In addition, the color wheel may adsorb dust in the surrounding air when rotating at a high speed, and the adhesion of the dust may reduce the excitation efficiency of the wavelength conversion material. At present, the dustproof and heat dissipation solution of the color wheel is to seal the whole color wheel, perform heat exchange by using the disturbance of the internal air flow, and guide the heat out to the shell so as to achieve the purpose of cooling. If only the color wheel is relied on to dissipate heat of disturbance of the air flow, the color wheel can be overheated when the power is high. Therefore, how to improve the heat dissipation effect of the color wheel on the premise of ensuring the dustproof effect of the color wheel becomes a difficult problem which needs to be solved urgently by the technical personnel.
Disclosure of Invention
The embodiment of the invention provides a color wheel module, which can improve the heat dissipation effect of a color wheel on the premise of ensuring the dustproof effect of the color wheel.
In order to solve the technical problem, the embodiment of the invention discloses the following technical scheme: provide a color wheel module, include:
the cooling device comprises a shell, a cooling device and a cooling device, wherein the shell is provided with an accommodating space which is divided into a color wheel mounting space, a connecting space and a cooling space;
the partition plate is arranged in the connecting space and divides the connecting space into a first air flow channel and a second air flow channel, wherein the first air flow channel is respectively communicated with the color wheel mounting space and the cooling space, the second air flow channel is respectively communicated with the color wheel mounting space and the cooling space, and the color wheel mounting space, the first air flow channel, the cooling space and the second air flow channel are closed to form an air flow loop;
and the color wheel is arranged in the color wheel mounting space.
Preferably, the color wheel comprises:
a substrate, one surface of which is covered with a wavelength conversion layer;
the fan blade group is arranged on the substrate;
and the driving device is fixed with the inner surface of the shell, and a rotating shaft of the driving device is fixed with the substrate and is used for driving the substrate to rotate.
Preferably, the fan blade group is fixed on the other surface of the substrate far away from the surface provided with the wavelength conversion layer.
Preferably, the number of the substrates is two, namely a first substrate and a second substrate; the first substrate and the second substrate are both fixed with a rotating shaft of the driving device, wherein the first substrate and the second substrate are oppositely arranged, and a cavity is formed between the first substrate and the second substrate; the wavelength conversion layer is arranged on one surface of the first substrate, which is far away from the second substrate; the fan blade group is fixed on one surface of the second substrate, which faces the first substrate.
Preferably, a vent hole is formed in the first substrate, and the vent hole is communicated with the cavity.
Preferably, the first substrate and the second substrate are both circular substrates.
Preferably, the surface of the housing in the cooling space area is provided with heat dissipation fins.
Preferably, the heat dissipation fins are made of copper.
Preferably, the color wheel module further comprises an air blower; the blower is disposed in the first airflow passage or the second airflow passage.
Preferably, the color wheel module further comprises a transparent cover plate; the shell is provided with an opening, the transparent cover plate is covered at the opening and used for sealing the opening, and the wavelength conversion layer corresponds to the transparent cover plate.
The embodiment of the invention has the beneficial effects that: different from the situation in the prior art, the color wheel module provided in the embodiment of the present invention provides a color wheel module, including: the cooling device comprises a shell, a cooling device and a cooling device, wherein the shell is provided with an accommodating space which is divided into a color wheel mounting space, a connecting space and a cooling space; the partition plate is arranged in the connecting space and divides the connecting space into a first air flow channel and a second air flow channel, wherein the first air flow channel is respectively communicated with the color wheel mounting space and the cooling space, the second air flow channel is respectively communicated with the color wheel mounting space and the cooling space, and the color wheel mounting space, the first air flow channel, the cooling space and the second air flow channel are closed to form an air flow loop; and the color wheel is arranged in the color wheel mounting space. The heat exchange between the color wheel and the outside air is realized in the fully closed state of the shell, and the heat dissipation effect of the color wheel is effectively improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of a color wheel module according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a color wheel module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
It should be noted that the dotted lines marked in the drawings are only for illustrating the connection and division relationship between the structures of the product of the present invention, so as to facilitate those skilled in the art to better understand the technical solution of the present invention, and cannot be understood as indicating or implying that the product to which the technical solution of the present invention is applied contains dotted lines or other internal invisible structures.
Referring to fig. 1, the color wheel module 100 includes a housing 1, a partition 2 and a color wheel 3, wherein the housing 1 is provided with an accommodating space 10, and the accommodating space 10 divides a color wheel mounting space 101, a connecting space 102 and a cooling space 103.
The shell 1 plays a role in sealing, external dust and particulate matters are prevented from entering the color wheel 3, and the shell 1 is required to be completely sealed in an ideal state, in the embodiment, the shell 1 is made of a metal, ceramic or plastic material which is light, thin, waterproof, high-temperature resistant and high in strength, in order to facilitate that laser can penetrate through the shell to irradiate the wavelength conversion layer, and stimulated light generated by the wavelength conversion layer can penetrate through the shell to emit, a light path from an excitation light source to the color wheel 3 is kept smooth, at least one light-transmitting hole is arranged on the shell 1 and used for incident excitation light and/or emergent excitation light, so that the shell 1 is made of a transparent material at least in an area corresponding to the color wheel 3, and the shell 1 can also be made of a full-transparent material. In order to ensure a good dustproof effect, the housing 1 is usually formed integrally, and a combination mode of fixing by screws and sealing by adding a sealing ring can be adopted.
The partition plate 2 is disposed in the connection space 102, and divides the connection space 102 into a first air flow channel 4 and a second air flow channel 5, wherein the first air flow channel 4 is respectively communicated with the color wheel mounting space 101 and the cooling space 103, the second air flow channel 5 is respectively communicated with the color wheel mounting space 101 and the cooling space 103, and the color wheel mounting space 101, the first air flow channel 4, the cooling space 103 and the second air flow channel 5 are closed to form an air flow loop. In the present embodiment, one end of the partition board 2 is close to the color wheel 3, the connecting space 102 is located between the mounting space 101 and the cooling space 103, the partition board 2 disposed in the connecting space 102 divides the connecting space 102 into a left part and a right part, which are the first air flow channel 4 and the second air flow channel 5, respectively, it can be understood that, in the extension of the space, the accommodating space 10 is also divided into a left area and a right area, the direction of the dashed line marked in the figure represents the direction of the air flow circulation, and the air flows along the dashed line on the two sides form a closed air flow loop.
The color wheel 3 is installed in the color wheel installation space 101, and the color wheel 3 includes: a substrate 31 having one surface S1 covered with a wavelength conversion layer (not shown); a fan blade group 32 provided on the base plate 31; and a driving device 33 fixed to an inner surface of the housing 1, and a rotation shaft of the driving device 33 is fixed to the base plate 31 for driving the base plate 31 to rotate. In this embodiment, the color wheel 3 is a reflective color wheel, and based on this, a light through hole is disposed on a side surface of the housing 1 parallel to the substrate 31, and at this time, laser light enters the interior of the housing through the light through hole, and the received laser light also exits from the light through hole, although the present invention is not limited thereto, in some embodiments, the color wheel 3 may also be a transmissive color wheel, and accordingly, two side surfaces of the housing 1 parallel to the substrate 31 are respectively disposed with one light through hole, that is, the housing 1 has light through holes symmetrical in the front and back, at this time, excitation light enters from one light through hole of the housing 1 (for example, the light through hole on the front side of the housing 1), and the received laser light exits from the other light through hole of the housing 1 (for example, the light through hole on.
The substrate 31 is a circular aluminum alloy disc, and in some embodiments, the shape and material of the substrate 31 may be set according to actual requirements. In this embodiment, the front surface of the substrate 31 is S1, the back surface corresponding to the front surface S1 is S2, the front surface S1 is parallel to the inner wall of the housing 1 and faces the side of the housing 1 where the light-passing hole is disposed, the front surface S1 is covered with a wavelength conversion layer, the wavelength conversion layer is used for generating stimulated light after being irradiated by the stimulated light, the wavelength conversion layer is a layer of wavelength conversion material with a certain thickness uniformly covered on the front surface S1, and the most commonly used wavelength conversion material is phosphor powder, such as Yttrium Aluminum Garnet (YAG) phosphor powder, which can absorb blue light and be stimulated to generate yellow stimulated light. The wavelength conversion material may also be a material having wavelength conversion ability, such as quantum dots, fluorescent dye, and the like, and is not limited to phosphor. In many cases, the wavelength converting material is often in a powder or granular form, and it is difficult to directly form the wavelength converting layer, and in this case, it is necessary to fix the respective wavelength converting material particles together using an adhesive and form the wavelength converting layer, such as a sheet-like layer. The wavelength conversion material contains light wavelength conversion materials on different color sections, laser irradiated on the wavelength conversion layer can be absorbed by the wavelength conversion materials, and initial laser generates laser receiving beams with different wavelengths through a series of changes. In some embodiments, in order to prevent the wavelength conversion layer from being thrown off during the rotation of the substrate, the wavelength conversion layer may include a ceramic substrate, a reflective layer and a phosphor layer, which are fixed in a stacked manner in sequence, and the wavelength conversion layer may sequentially surround the light transmissive layer, the adhesive layer and the outer glue layer.
The fan blade group 32 is fixed to the other surface S2 of the substrate 31 remote from the surface on which the wavelength conversion layer is provided. When the color wheel 3 rotates, the fan blade group 32 drives the airflow to flow, a closed airflow loop is formed on two sides of the partition plate 2, hot air from the wavelength conversion layer of the color wheel 3 is guided to a cold air area far away from the color wheel 3 in the shell 1 from a hot air area where the color wheel 3 is located, heat generated by the color wheel 3 is released to the air in the cold air area through heat conduction, and heat exchange between the color wheel 3 and outside air is realized in a fully closed state of the shell 1. It will be appreciated that during absorption of the laser light by the wavelength converting material, a portion of the energy of the laser light is converted into heat, and the heat is absorbed by the surface material of the color wheel, thereby causing the temperature of the wavelength converting material to rise, so that the vicinity of the wavelength converting layer of the color wheel mounting space 101 is a hot wind region, and correspondingly, the cooling space 103 away from the color wheel 1 is a cold wind region.
In the present embodiment, the fan blade group 32 and the substrate 31 are integrally formed, and other specific and feasible connection or fixing relationships, such as screw fixation, welding, and adhesion, may also be adopted, and the fan blade and the substrate surface may be fixedly connected, and may be attached or not attached. The fan blade assembly 12 has two or more fan blades, and the fan blade assembly 32 is annularly disposed about the surface, which effectively increases the heat transfer area. It should be noted that, in this embodiment, the shape and number of the fan blades are not limited to the mode shown in the embodiment drawings, the number of the fan blades is preferably odd, and is preferably 3 or 5, and the fan blades are uniformly arranged on the surface of the substrate 31, the shape of the fan blades may be a bird wing shape or a right trapezoid shape, and the like, and the fan blades may be made of a material with low density and fast heat dissipation, such as plastic or metal.
The driving device 33 is fixed to the inner surface of the housing, and the rotating shaft of the driving device 33 is fixed to the base plate 31 for driving the base plate 31 to rotate. Further, the driving device 33 is fixed to the inner surface of the housing, and the rotating shaft of the driving device 33 is fixed to the base plate 31, the fixing manner may be integral molding, welding, thread engagement, etc., when the driving device 33 (e.g., a motor) is powered on, the rotating shaft rotates along with the driving device 33, the rotating shaft rotates the base plate 31, then the fan blade set 32 fixed to the base plate 31 rotates synchronously, the synchronous rotation speed of the fan blade set 32 depends on the speed set by the driving device 33, and the speed set by the driving device 33 may be set to be constant or variable.
The surface of the housing 1 in the region of the cooling space 103 is provided with heat sink fins 7. In this embodiment, the heat dissipation fins 7 are made of copper, because copper is a high thermal conductivity material, other metals with better thermal conductivity can be selected instead, such as silver, gold, aluminum, iron, and the like, and ceramic materials, such as aluminum nitride, silicon carbide, aluminum oxide, and the like, can also be used. The end of the interior of the housing 1, which is far away from the color wheel 3, is provided with a plurality of columnar heat dissipation fins 7, which are certainly not limited to be columnar, and any shape that the heat dissipation fins 7 and the housing 1 have as large a contact area as possible can be satisfied. The heat dissipation fins 7 can absorb heat in the airflow loop, and then release the heat to the air through heat conduction of the shell 1; the columnar heat dissipation fins 7 can be arranged on the inner surface and/or the outer surface of the shell, in this embodiment, the columnar heat dissipation fins 7 are arranged on the outer surface of the shell, and heat dissipation devices such as a radiator, a heat pipe and water cooling can be additionally arranged on the surface of the cooling space 103 region to enhance the cooling effect of the cooling space 103 (namely a cold air region).
The color wheel module 100 further includes a blower 8, and the blower 8 is disposed in the first air flow channel 4 or the second air flow channel 5 and located on one side of the partition plate 2. In the present embodiment, the blower 8 is disposed in the second air flow path 5 corresponding to the right side of the partition 2, and the principle of disposing the blower 8 in the first air flow path 4 is consistent with it except that the direction of the air inlet of the blower 8 is not consistent. When the driving device 33 rotates at a high speed, the color wheel 3 is equivalent to a centrifugal fan, air enters from an air inlet of the blower 8, is pressurized under the action of the color wheel 3, namely, air flow on the air inlet side is attached to the partition plate 2 and directly blows to the rotating direction of the color wheel 3, the air reaches the installation space 101 along the second air flow channel 5 to exchange heat with the substrate 31 and the fan blade group 32, the air is heated and then pressurized under the action of the color wheel 3, the air reaches a cold air area along the first air flow channel 4, heat is diluted into the air through the heat conduction action of the shell 1 and the radiating fins 7, the air is cooled, and a strong turbulent flow is formed in the whole process. In some embodiments, the blower 8 may be replaced by a machine having an air inlet and outlet function, such as an axial fan or a centrifugal fan.
The color wheel module 100 further comprises a transparent cover plate 9, the housing 1 is provided with an opening, the transparent cover plate 9 is covered at the opening and used for sealing the opening, and the wavelength conversion layer corresponds to the transparent cover plate 9. In the present embodiment, the height of the transparent cover 9 is D1, the diameter of the optical wavelength conversion layer is the same as that of the substrate 31, in order to facilitate the laser to penetrate through the housing 1 to irradiate onto the wavelength conversion layer, and the excited light generated by the wavelength conversion layer to penetrate through the housing 1 to emit, the light path from the excitation light source to the substrate 31 should be kept open, at least one light-passing hole is provided on the housing 1 for the incident excitation light and/or the emitted excited light, so that the transparent material adopted by at least the region of the housing 1 corresponding to the color wheel 3, i.e. D1, is larger than the diameter or width of the optical wavelength conversion layer, and in some embodiments, the housing 1 may be made of a completely transparent material.
Referring to fig. 2, different from fig. 1, the number of the substrates 31 is two, which are a first substrate 311 and a second substrate 312, and the first substrate 311 and the second substrate 312 are both fixed to the rotating shaft 331 of the driving device 33, wherein the first substrate 311 and the second substrate 312 are disposed opposite to each other, and a cavity is formed between the first substrate 311 and the second substrate 312. The wavelength conversion layer is disposed on a surface S3 of the first substrate away from the second substrate, and the fan blade set 32 is fixed on a surface S5 of the second substrate 312 facing the first substrate. The first substrate 311 and the second substrate 312 are both circular substrates, in this embodiment, the substrate 31 is a circular aluminum alloy disc, and in some embodiments, the shape and material of the substrate 31 may be set according to actual requirements.
The first substrate 311 is provided with a vent hole 6, and the vent hole 6 is communicated with the cavity. In the present embodiment, the vent holes 6 provided on the first substrate 101 are a first vent hole and a second vent hole, respectively, which are symmetrical with respect to the rotation axis 331, and are connected to the cylindrical cavity formed between the first substrate 311 and the second substrate 312. It should be noted that the number of the vent holes is not limited to the number described in the embodiment, and the shape of the vent holes may be a circular hole or a square hole.
The surface of the housing 1 in the region of the cooling space 103 is provided with heat sink fins 7. In this embodiment, the heat dissipation fins 7 are made of copper, because copper is a high thermal conductivity material, other metals with better thermal conductivity may be selected instead, such as silver, gold, aluminum, iron, and the like, and ceramic materials, such as aluminum nitride, silicon carbide, aluminum oxide, and the like, may also be used. The end of the interior of the housing 1, which is far away from the color wheel 3, is provided with a plurality of columnar heat dissipation fins 7, which are certainly not limited to be columnar, and any shape that the heat dissipation fins 7 and the housing 1 have as large a contact area as possible can be satisfied. The heat dissipation fins 7 can absorb heat in the airflow loop, and then release the heat to the air through heat conduction of the shell 1; the columnar heat dissipation fins 7 may be disposed on the inner surface of the housing and/or the outer surface of the housing, in this embodiment, the columnar heat dissipation fins 7 are disposed on the inner surface of the housing, and on the surface of the cooling space 103 region, heat dissipation devices such as a heat sink, a heat pipe, and a water cooling device may be further disposed to enhance the cooling effect of the cooling space 103.
The color wheel module provided by the embodiment of the invention provides a color wheel module, which comprises: the cooling device comprises a shell, a cooling device and a cooling device, wherein the shell is provided with an accommodating space which is divided into a color wheel mounting space, a connecting space and a cooling space; the partition plate is arranged in the connecting space and divides the connecting space into a first air flow channel and a second air flow channel, wherein the first air flow channel is respectively communicated with the color wheel mounting space and the cooling space, the second air flow channel is respectively communicated with the color wheel mounting space and the cooling space, and the color wheel mounting space, the first air flow channel, the cooling space and the second air flow channel are closed to form an air flow loop; and the color wheel is arranged in the color wheel mounting space. The heat exchange between the color wheel and the outside air is realized in the fully closed state of the shell, and the heat dissipation effect of the color wheel is effectively improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A color wheel module, comprising:
the color wheel cooling device comprises a shell (1) provided with an accommodating space (10), wherein the accommodating space is divided into a color wheel mounting space (101), a connecting space (102) and a cooling space (103);
a partition plate (2) disposed in the connection space (102) and dividing the connection space (102) into a first air flow channel (4) and a second air flow channel (5), wherein the first air flow channel (4) is respectively communicated with the color wheel mounting space (101) and the cooling space (103), the second air flow channel (5) is respectively communicated with the color wheel mounting space (101) and the cooling space (103), and the color wheel mounting space (101), the first air flow channel (4), the cooling space (103) and the second air flow channel (5) are closed to form an air flow loop; the surface of the shell (1) in the area of the cooling space (103) is provided with radiating fins (7);
a color wheel (3) mounted to the color wheel mounting space (101), the color wheel (3) comprising: a substrate (31) having a surface covered with a wavelength conversion layer; a fan blade group (32) provided on the base plate (31); a driving device (33) fixed with the inner surface of the shell (1), and the rotating shaft of the driving device (33) is fixed with the base plate (31) and used for driving the base plate (31) to rotate;
the number of the substrates (31) is two, namely a first substrate (311) and a second substrate (312); the first substrate (311) and the second substrate (312) are both fixed with a rotating shaft (331) of the driving device (33), wherein the first substrate (311) and the second substrate (312) are oppositely arranged, and a cavity is arranged between the first substrate (311) and the second substrate (312); the wavelength conversion layer is arranged on one surface, far away from the second substrate (312), of the first substrate (311), and sequentially surrounds the light transmitting layer, the bonding layer and the outer adhesive layer; the fan blade group (32) is fixed on one surface of the second substrate (312) facing the first substrate (311); a vent hole (6) is formed in the first substrate (311), and the vent hole (6) is communicated with the cavity;
the color wheel module (100) further comprises a transparent cover plate (9);
the shell (1) is provided with an opening, the transparent cover plate (9) is arranged at the opening in a covering mode and used for sealing the opening, and the wavelength conversion layer corresponds to the transparent cover plate (9).
2. The color wheel module as claimed in claim 1,
the first substrate (311) and the second substrate (312) are both circular substrates.
3. The color wheel module as claimed in claim 1,
the radiating fins (7) are made of metal copper.
4. The color wheel module according to any of the claims 1 to 2,
the color wheel module (100) further comprises a blower (8);
the blower (8) is disposed in the first airflow passage (4) or the second airflow passage (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710973181.XA CN107608168B (en) | 2017-10-18 | 2017-10-18 | Color wheel module |
| PCT/CN2018/081148 WO2019075993A1 (en) | 2017-10-18 | 2018-03-29 | Color wheel module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710973181.XA CN107608168B (en) | 2017-10-18 | 2017-10-18 | Color wheel module |
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| Publication Number | Publication Date |
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| CN107608168A CN107608168A (en) | 2018-01-19 |
| CN107608168B true CN107608168B (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710973181.XA Active CN107608168B (en) | 2017-10-18 | 2017-10-18 | Color wheel module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107608168B (en) |
| WO (1) | WO2019075993A1 (en) |
Families Citing this family (5)
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| CN111208695A (en) * | 2018-11-22 | 2020-05-29 | 无锡视美乐激光显示科技有限公司 | Light source assembly and laser projection display equipment with same |
| EP4006414A4 (en) * | 2019-07-26 | 2022-08-24 | Panasonic Intellectual Property Management Co., Ltd. | Fluorescent wheel |
| CN112782843A (en) | 2019-11-07 | 2021-05-11 | 台达电子工业股份有限公司 | Wavelength conversion unit and lighting device |
| CN111445731A (en) * | 2020-05-18 | 2020-07-24 | 衡阳师范学院 | Computer projection arrangement for high education of long-range height |
| CN111736414B (en) * | 2020-07-09 | 2022-02-15 | 无锡视美乐激光显示科技有限公司 | Fluorescent wheel heat radiation structure and laser projector |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107608168A (en) | 2018-01-19 |
| WO2019075993A1 (en) | 2019-04-25 |
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