CN211123610U - Color wheel with balanced heat radiation structure - Google Patents
Color wheel with balanced heat radiation structure Download PDFInfo
- Publication number
- CN211123610U CN211123610U CN201922388975.7U CN201922388975U CN211123610U CN 211123610 U CN211123610 U CN 211123610U CN 201922388975 U CN201922388975 U CN 201922388975U CN 211123610 U CN211123610 U CN 211123610U
- Authority
- CN
- China
- Prior art keywords
- color wheel
- hub
- heat dissipation
- balanced heat
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The utility model discloses a color wheel with balanced heat radiation structure, including the base plate, set up wheel hub and wavelength conversion structure and the drive structure on the base plate, the wheel hub is provided with balanced heat radiation structure on keeping away from one side surface of base plate, balanced heat radiation structure includes a plurality of concave parts that form on the wheel hub surface and every two turbulent flow blocks that form between the concave part, the concave part radially link up to the wheel hub outer circumference by the wheel hub inner circumference; compared with the method of independently arranging the balance structure and the heat dissipation structure in the prior art, the method has the advantages that processing and manufacturing steps are simplified, and manufacturing cost is reduced; the hub is provided with a balanced heat dissipation structure, so that compared with the hub which is arranged on a substrate, the hub is easier to operate, and the operation difficulty is reduced; set up balanced heat radiation structure on wheel hub, simplified the structural design of base plate, can be with the miniaturized design of base plate, be fit for miniaturized color wheel's market demand.
Description
Technical Field
The utility model relates to a light source technical field that illumination and demonstration were used, concretely relates to colour wheel with balanced heat radiation structure.
Background
A color wheel is commonly used in a light source module for illumination and display, for example, in a light source module of a digital light source processing projection system (D L P), when a laser emitted from an excitation light source irradiates the color wheel, a wavelength conversion material (e.g., phosphor) on the color wheel absorbs the excitation light and generates excited light beams with different wavelengths, and the color wheel rotates at a high speed, so that the excitation light irradiates the phosphor in different areas of the color wheel to emit excited laser beams with different colors, and the excited light beams with different colors are synthesized by other optical elements and project a full-color image.
The wavelength conversion material on the color wheel can generate a large amount of heat when the exciting light emitted by the exciting light source is converted into excited light beams, and if the heat cannot be dissipated in time, the light conversion efficiency of the wavelength conversion material is influenced, and the color wheel can be seriously damaged. In the prior art, generally, an airflow disturbance structure such as fan blades is arranged on a substrate of a color wheel, and when a driving device drives the color wheel to rotate at a high speed, the fan blades also rotate at a high speed, so that the air convection on the surface of the substrate is greatly enhanced, and the heat dissipation capability of the color wheel is improved.
However, the color wheel still has a problem that, in the working process of the color wheel rotating at a high speed, the mass distribution of the whole color wheel is uneven due to the material or structure of the color wheel substrate and the hub itself, or the density or distribution position of the wavelength conversion material arranged on the color wheel substrate is uneven, and the arrangement of the light transmission area, etc., so that the mass center of the whole color wheel deviates from the rotation center of the color wheel, which causes a serious vibration problem of the color wheel in the rotating process, and therefore, the color wheel needs to be structurally balanced to minimize imbalance. The balance vibration reduction structure and the heat dissipation structure of the color wheel in the prior art are two separated parts which are completely different, so that the manufacturing and processing steps of products are increased, and the utilization rate of the surface of the color wheel is reduced.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a colour wheel with balanced heat radiation structure through set up balanced heat radiation structure on wheel hub, can guarantee that the balance of colour wheel can guarantee again that it has good heat dispersion, has reduced processing step, has improved the utilization ratio on colour wheel surface.
In order to solve the problem existing in the prior art, the utility model provides a technical scheme as follows: a color wheel with a balance heat dissipation structure comprises a substrate, a hub and a wavelength conversion structure which are arranged on the substrate, and a driving structure, wherein the balance heat dissipation structure is arranged on the surface of one side, away from the substrate, of the hub, the balance heat dissipation structure comprises a plurality of concave portions formed on the surface of the hub, and turbulent flow blocks formed between every two concave portions, and the concave portions penetrate through the outer circumference of the hub from the inner circumference of the hub in the radial direction.
The balance heat dissipation structure ensures the overall balance of the color wheel by changing the mass distribution density of the hub. Preferably, the mass distribution density of the hub is varied by one or more of: 1) making the arrangement density of at least two of the recesses different from the arrangement density of the other recesses; 2) the depth and/or width of at least one of the recesses is made different from the depth and/or width of the other recesses.
The recess may be obtained by milling the hub surface or by injection moulding.
Furthermore, the wavelength converting structure of the present invention comprises at least one wavelength converting region, wherein the at least one wavelength converting region is annularly arranged on the substrate.
Further, the wavelength conversion structure is a sheet layer made of mixed fluorescent powder and glue.
And a diffuse reflection layer is arranged on the substrate below the wavelength conversion structure.
In consideration of the fact that the color wheel needs to have multiple functions, the substrate can be provided with a light-transmitting area besides the wavelength conversion area.
In order to obtain a better heat dissipation effect, the substrate of the color wheel can be further provided with a fan blade structure so as to further improve the overall heat dissipation performance of the color wheel.
The utility model has the advantages that the mass distribution of the whole color wheel is balanced by arranging the balance heat dissipation structure on the wheel hub, and the heat dissipation problem of the color wheel is solved, so that compared with the method of independently arranging the balance structure and the heat dissipation structure in the prior art, the processing and manufacturing steps are simplified, and the manufacturing cost is reduced; the hub is provided with a balanced heat dissipation structure, so that compared with the hub which is arranged on a substrate, the hub is easier to operate, and the operation difficulty is reduced; in addition, set up balanced heat radiation structure on wheel hub, simplified the structural design of base plate, can be with the miniaturized design of base plate, be fit for miniaturized color wheel's market demand.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic front structural diagram of a color wheel with a balanced heat dissipation structure according to a first embodiment of the present invention.
Fig. 2 is a schematic front structural diagram of a color wheel with a balanced heat dissipation structure according to a second embodiment of the present invention.
Fig. 3 is a schematic front structural view of a color wheel with a balanced heat dissipation structure according to a third embodiment of the present invention.
Fig. 4 is a schematic front structural diagram of a color wheel with a balanced heat dissipation structure according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The present embodiment provides a color wheel with a balanced heat dissipation structure, as shown in fig. 1, including a substrate 1, a hub 2 and a wavelength conversion structure 3 disposed on the substrate 1, and a driving structure (not shown in the figure), the hub 2 is provided with a balanced heat dissipation structure on a side surface away from the substrate 1, the balanced heat dissipation structure provided by the present embodiment is a plurality of recesses 4 formed on a surface of the hub 2 by milling, and a spoiler 5 formed between every two recesses 4, the recesses 4 are in a fan shape and radially penetrate from an inner circumference of the hub 2 to an outer circumference of the hub 2.
In addition, in the present embodiment, two wavelength conversion regions 31, 32 and a light-transmitting region 33 are disposed on the substrate 1, and the wavelength conversion structure 3 is a sheet layer made of a mixture of phosphors with different colors and glue, and is bonded on the substrate 1, and is disposed at the outer edge of the substrate 1 in a ring shape together with the light-transmitting region 33. A diffuse reflection layer is arranged on the corresponding substrate 1 below the wavelength conversion structure 3.
Because the base plate 1 is provided with the light-transmitting area 33, the mass of the base plate 1 on the side of the light-transmitting area 33 is smaller than that of the base plate 1 on the other side, and in order to ensure the overall balance, the arrangement density of the concave parts 4 on the hub 2 on one side of the light-transmitting area 33 is distributed over the arrangement density of the concave parts 4 on the other side, namely the arrangement density of the concave parts 4 is changed to realize the balance in the embodiment; in addition, because the concave parts 4 have a certain depth in the axial direction, the turbulent flow block 5 can be formed between every two concave parts 4, and the turbulent flow block 5 can achieve the effect of stirring air in the rotating process of the color wheel, so that the heat dissipation effect is achieved, and the balance heat dissipation mechanism can achieve two functions of balance and heat dissipation at the same time.
Example two
The present embodiment is different from the first embodiment in that, as shown in fig. 2, the present embodiment changes the distribution density of the hub 2 by changing the depth of the concave portions 4, instead of changing the mass distribution density of the hub 2 by changing the arrangement density of the concave portions 4. Wherein, in order to guarantee the whole balance of colour wheel, be located light zone 33 one side the degree of depth of recess 41 on the wheel hub 2 will be less than the degree of depth of opposite side recess 42 for the quality that is located the wheel hub 2 of light zone 33 one side is greater than the quality of opposite side, thereby realizes the holistic balance of colour wheel, and because recess 4 has certain degree of depth in the axial direction, the vortex block 5 that forms between per two recesses 4 can also play the effect of vortex when the colour wheel is high-speed rotatory, thereby reach radiating effect.
Detailed description of the preferred embodiment
The difference between this embodiment and the second embodiment is that, as shown in fig. 3, the distribution density of the hub 2 is changed by changing the width distribution of the concave portions 4, so as to achieve the overall balance of the color wheel. Since the mass of the substrate on the light transmission region 33 side is smaller than that of the substrate in the other region, in the present embodiment, the opening width of the concave portion 43 on the hub 2 on the light transmission region side is smaller than that of the concave portion 44 on the hub 2 on the other side, so that the mass of the hub 2 on the light transmission region 33 side is larger than that of the other region, thereby ensuring the balance of the color wheel as a whole.
Example four
The present embodiment is different from the second embodiment in that, as shown in fig. 4, in order to further improve the heat dissipation effect in the present embodiment, a heat dissipation blade 6 is further disposed on the substrate 1, and the heat dissipation blade 6 is disposed between the wavelength conversion structure 3 and the hub 2.
In addition, in addition to the milling processing method mentioned in the above embodiment, the hub having the concave portion may be obtained by injection molding, so as to ensure the balance and heat dissipation performance of the entire color wheel.
It can be understood, because the uneven distribution of phosphor powder and/or glue in the wavelength conversion district lamella on the base plate to and the setting in printing opacity district, lead to the base plate mass distribution uneven, the utility model discloses a distribution density through changing wheel hub offsets the unbalance of base plate, thereby reaches the holistic equilibrium of colour wheel. The manner of changing the distribution density of the hub is not limited to the manner exemplified in the specific embodiment, but may also be achieved by other ways, including changing the arrangement density of the recesses and/or changing the depth and/or width of the recesses.
It is understood that the concave portion is not limited to the sector shape described in the embodiments, and is not limited to a specific shape, and the side surface of the concave portion may be vertical, inclined, or irregular, such as stepped, cambered, etc.; the bottom surface of the concave part can be horizontal, inclined or irregular, such as a step, a spiral, a cambered surface and the like.
It is understood that the wavelength converting region on the substrate may be provided with one or more wavelength converting regions, not limited to the two described in the embodiments.
It is understood that the heat dissipation blade of the fourth embodiment can be formed on the substrate by a stamping or milling or injection molding process, or can be formed by bonding or welding the blade structure on the substrate.
The utility model discloses a main idea makes the mass distribution of colour wheel even through the balanced heat radiation structure on the wheel hub, and balanced structure does not only confine to and changes its weight, arrangement or shape etc. as long as relate to and change so that the mass distribution of colour wheel all includes the utility model discloses a protection within range.
It is right above the utility model provides a colour wheel with balanced heat radiation structure introduces in detail, and it is right to have used specific individual example herein the utility model discloses a mechanism and theory of operation have explained, and the explanation of above embodiment is only used for helping understanding the utility model discloses a method and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.
Claims (9)
1. The color wheel with the balanced heat dissipation structure comprises a substrate, a hub and a wavelength conversion structure which are arranged on the substrate, and a driving structure, and is characterized in that the balanced heat dissipation structure is arranged on the surface of one side, away from the substrate, of the hub, and comprises a plurality of concave parts formed on the surface of the hub and turbulent flow blocks formed between every two concave parts, and the concave parts radially penetrate from the inner circumference of the hub to the outer circumference of the hub.
2. The color wheel with balanced heat dissipation structure of claim 1, wherein the arrangement density of at least two of the recesses is different from the arrangement density of other recesses.
3. The color wheel with balanced heat dissipation structure of claim 1 or 2, wherein the depth and/or width of at least one of the recesses is different from the depth and/or width of the other recesses.
4. The color wheel with balanced heat dissipation structure of claim 1, wherein the balanced heat dissipation structure is obtained by milling the surface of the hub or by injection molding.
5. The color wheel with balanced heat dissipation structure of claim 1 wherein the wavelength converting structure comprises at least one wavelength converting region arranged in a ring shape on the substrate.
6. The color wheel with balanced heat dissipation structure of claim 5, wherein the wavelength conversion structure is a sheet made of a mixture of phosphor and glue.
7. The color wheel with balanced heat dissipation structure according to claim 1 or 5, wherein a diffuse reflection layer is disposed on the substrate under the wavelength conversion structure.
8. The color wheel with balanced heat dissipation structure as claimed in claim 1 or 5, wherein the substrate is further provided with a light-transmitting region.
9. The color wheel with balanced heat dissipation structure of claim 1, wherein the color wheel further comprises a fan structure disposed on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388975.7U CN211123610U (en) | 2019-12-26 | 2019-12-26 | Color wheel with balanced heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388975.7U CN211123610U (en) | 2019-12-26 | 2019-12-26 | Color wheel with balanced heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211123610U true CN211123610U (en) | 2020-07-28 |
Family
ID=71693973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388975.7U Active CN211123610U (en) | 2019-12-26 | 2019-12-26 | Color wheel with balanced heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211123610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167669A (en) * | 2020-09-10 | 2022-03-11 | 中强光电股份有限公司 | Wavelength conversion module and projector |
-
2019
- 2019-12-26 CN CN201922388975.7U patent/CN211123610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167669A (en) * | 2020-09-10 | 2022-03-11 | 中强光电股份有限公司 | Wavelength conversion module and projector |
| US11709414B2 (en) | 2020-09-10 | 2023-07-25 | Coretronic Corporation | Wavelength conversion module and projector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI502270B (en) | Wavelength conversion device and projector | |
| CN104834169B (en) | Fluorescent wheel and projector with fluorescent wheel | |
| CN105511213B (en) | A kind of Wavelength converter and light source | |
| CN210605321U (en) | Color wheel with vibration reduction and heat dissipation structure | |
| CN211123610U (en) | Color wheel with balanced heat radiation structure | |
| JP2012008177A (en) | Fluorescent substance wheel and projector | |
| JP2016114787A (en) | Light source device and projector including light source device | |
| CN205091534U (en) | Colour wheel subassembly and projection arrangement | |
| JP2016051072A (en) | Light source device and projector having light source device | |
| CN205374967U (en) | Colour wheel subassembly, light source device and projecting system | |
| CN104516177A (en) | Color wheel and projector | |
| CN209624967U (en) | Wavelength converter and projector | |
| JP2019061235A (en) | Phosphor wheel, phosphor wheel device including the same, optical conversion device, and projection type display device | |
| CN211293572U (en) | Wavelength conversion device with double-layer fan blade structure | |
| JP2018105941A (en) | Light emitting wheel | |
| CN109752904B (en) | Fluorescent powder rotary wheel and projection device using fluorescent powder rotary wheel | |
| CN210323746U (en) | Fluorescent wheel | |
| CN210465979U (en) | Integrated fluorescent wheel | |
| JP6133214B2 (en) | Method for manufacturing part of coloring and part of coloring | |
| CN211289978U (en) | Color wheel | |
| CN210605332U (en) | Fluorescent wheel heat radiation structure | |
| CN1693968A (en) | LED backlight system for packaging LED using six-color element | |
| CN105444110A (en) | Stage lamp with colour light beam effect | |
| US10816881B2 (en) | Wavelength conversion module | |
| JP6187612B2 (en) | Light source device and projector provided with the light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |