TW201805714A - Color wheel module, light source system and projection system - Google Patents

Abstract

The present invention discloses a color wheel module and a light source system and a projection system. The color wheel module comprising a color wheel and a color wheel shell and a heat dissipation module. The color wheel comprising a color wheel disc having a wavelength converting material. The heat dissipation module comprising a fan and a first heat dissipation assembly and a second heat dissipation assembly. The inside of the color wheel shell has an air flow cycle passage. The color wheel, the fan and the first heat dissipation assembly are both disposed inside the air flow cycle passage. The second heat dissipation assembly is disposed outside the color wheel shell, and thermally connected to the first heat dissipation assembly. The airflow is generated by the fan blows the color wheel, along the direction parallel to the direction of the color wheel disc, also blows the first heat dissipation along the air flow cycle passage, for passing through the first heat dissipation assembly and the second heat dissipation assembly to carry the heat is generated by the color wheel outside the color wheel shell. Thereby improving the transfer ratio of color wheel and prolong the using life of the color wheel and the light source system and the projection system.

Description

Color wheel module, light source system and projection system

The invention relates to the field of projection technology, in particular to a color wheel module, a light source system and a projection system.

For projection devices, the color wheel in the projection device is an integral part of separating colors and processing colors. After the excitation light emitted by the light source is incident on the color wheel, the different wavelength converting materials on the excitation color wheel generate laser light of different colors, such as red laser, green laser and blue laser, and the different colors of the laser. Combine a beam of light and display the image.

However, in the process of exciting the wavelength-converting material by the excitation light, a part of the energy of the excitation light is converted into heat by the wavelength conversion material, and the color wheel is sealed by the color wheel because of its high dustproof requirement. The inside of the housing, which will cause the heat to be effectively discharged. As the heat accumulated in the interior of the color wheel housing increases, the internal temperature of the color wheel housing becomes higher and higher, which affects the conversion efficiency of the color wheel. Service life.

In view of the above, the present invention provides a color wheel module, a light source system and a projection system to solve the problem that the conversion efficiency and the service life of the color wheel are affected by the inability of the internal heat of the conventional color wheel housing to be effectively discharged in the prior art. problem.

To achieve the above object, the present invention provides the following technical solutions:

A color wheel module includes a color wheel, a color wheel housing and a heat dissipation module, the color wheel includes a color wheel having a wavelength conversion material, the heat dissipation module includes a fan, a first heat dissipation component and a a second heat dissipating component; the interior of the color wheel housing has an air circulation circulation passage; the color wheel, the fan and the first heat dissipation component are disposed in the air circulation circulation passage, and the second heat dissipation component Provided on the outside of the color wheel housing, and the second heat dissipation assembly is thermally connected to the first heat dissipation assembly; wherein an air flow generated by the fan is blown toward the direction parallel to the color wheel Deriving a color wheel and blowing the first heat dissipating component along the air circulation passage to conduct heat generated by the color wheel to the color wheel housing through the first heat dissipating component and the second heat dissipating component The outside of the body.

Preferably, the first heat dissipating component is a heat dissipating fin including a first heat dissipating component substrate and a plurality of heat dissipating strips, wherein the plurality of heat dissipating strips are vertically fixed on the first heat dissipating component substrate; The first heat dissipating component is blown in a direction of the first heat dissipating component substrate; the first heat dissipating component may be a semiconductor refrigerator.

Preferably, the second heat dissipation component is a piece of heat dissipation fin.

Preferably, the fan is disposed in a cold airflow section of the airflow circulation passage, and the first heat dissipation component is disposed in a hot airflow section of the airflow circulation passage; the airflow generated by the fan is circulated along a letter-shaped airflow Channel loop.

Preferably, the fan is disposed in the cold airflow section of the airflow circulation passage, the first heat dissipation component is disposed in the hot airflow section of the airflow circulation passage, and the airflow generated by the fan is along a day shape The air circulation cycle loops.

Preferably, the fan is fixed on the first heat dissipating component, and the fan is a centrifugal fan.

Preferably, the fan is disposed in the cold airflow section of the airflow circulation passage, the first heat dissipation component is disposed in the hot airflow section of the airflow circulation passage, and the airflow generated by the fan is along a word Type air circulation cycle loop.

Preferably, the heat dissipation module further includes a third heat dissipation component, the third heat dissipation component is disposed inside the color wheel housing, and the third heat dissipation component and the first heat dissipation component form an L Shaped fins.

Preferably, the fan is an axial fan.

Preferably, the color wheel further comprises a color wheel axle and a filter wheel, wherein the color wheel disk and the filter wheel are respectively disposed on two sides of the color wheel shaft, and the air flow generated by the fan is parallel to the The direction of the color wheel is blown toward the color wheel shaft and the color wheel and the filter wheel on both sides of the color wheel shaft; wherein the first heat dissipation component portion extends to the color wheel disk and the filter Within the gap between the light wheels.

Preferably, the first heat dissipation component and the second heat dissipation component are connected by a heat conductive material; and/or the first heat dissipation component and the second heat dissipation component may be connected by a heat pipe.

A light source system comprising a light source and a color wheel module, wherein the color wheel module is the color wheel module according to any one of the preceding claims, wherein an excitation light emitted by the light source passes through the color wheel housing Incident on the color wheel to excite a laser that is image projected.

A projection system comprising a light source system as described above.

Compared with the prior art, the technical solution provided by the present invention has the following advantages:

The color wheel module, the light source system and the projection system provided by the present invention, the airflow generated by the fan inside the color wheel housing is blown toward the color wheel in a direction parallel to the color wheel disk, and the heat generated by the color wheel The first heat dissipating component is conducted to the inside of the color wheel housing by the flow of air inside the color wheel housing, wherein the first heat dissipating component is thermally connected to the second heat dissipating component, and the second heat dissipating component is located at the The exterior of the color wheel housing, so that the heat generated by the color wheel can be conducted to the outside of the color wheel housing through the first heat dissipation component and the second heat dissipation component, thereby enabling the color of the interior of the color wheel housing The heat generated by the wheel is effectively discharged, thereby improving the conversion efficiency of the color wheel, extending the service life of the color wheel, the light source system, and the projection system; and, because the air flow generated by the fan is parallel to the color wheel The direction is blown toward the color wheel, so that the color wheel can be reduced in obstruction of the air flow, so that the air flow can smoothly remove heat from the color wheel, and at the same time, the air flow and the color wheel can be ensured. Given relative velocity, in turn, can increase the cooling capacity of the air flow of the color wheel.

As described in the background art, the heat inside the existing one-color wheel housing cannot be effectively discharged, thereby accumulating inside the color wheel housing, so that the internal temperature of the color wheel housing is higher and higher, thereby affecting the color wheel. Conversion efficiency and service life.

Based on this, the present invention provides a color wheel module to overcome the above problems in the prior art, including a color wheel, a color wheel housing and a heat dissipation module, the color wheel comprising a color wheel having a wavelength conversion material, The heat dissipation module includes a fan, a first heat dissipation component and a second heat dissipation component; the interior of the color wheel housing has an air circulation circulation channel, the color wheel, the fan and the first heat dissipation component Provided in the air circulation circulation passage, the second heat dissipation component is disposed outside the color wheel housing, and the second heat dissipation component is thermally connected to the first heat dissipation component; wherein the fan generates Airflow is blown toward the color wheel in a direction parallel to the color wheel disc, and is blown toward the first heat dissipating component along the airflow circulation passage to pass through the first heat dissipating component and the second heat dissipating component The heat generated by the color wheel is conducted to the outside of the color wheel housing.

The invention also provides a light source system comprising the above color wheel module.

The present invention also provides a projection system comprising the above described light source system.

According to the present invention, the color wheel module, the light source system and the projection system, the airflow generated by the fan inside the color wheel housing is blown toward the color wheel in a direction parallel to the color wheel disk, and the heat generated by the color wheel The first heat dissipating component is conducted to the inside of the color wheel housing by the flow of air inside the color wheel housing, wherein the first heat dissipating component is thermally connected to the second heat dissipating component, and the second heat dissipating component is located in the color Externally of the wheel housing, the heat generated by the color wheel can be transmitted to the outside of the color wheel housing through the first heat dissipating component and the second heat dissipating component, so that the color wheel of the color wheel housing can be The generated heat is effectively discharged, thereby improving the conversion efficiency of the color wheel, extending the service life of the color wheel, the light source system, and the projection system; and, because the airflow generated by the fan is parallel to the color wheel Blowing toward the color wheel, therefore, the color wheel can be reduced in obstruction of the air flow, so that the air flow can smoothly remove heat from the color wheel, and at the same time, the air flow and the color wheel can be ensured Relative velocity, in turn, can improve the heat dissipation capacity of the gas stream of the color wheel.

The above-mentioned objects, features, and advantages of the present invention will be more apparent from the aspects of the invention.

In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention, but the invention may be practiced in other ways than those described herein, and those skilled in the art can do without departing from the scope of the invention. The invention is not limited by the specific embodiments disclosed below.

Embodiment 1

This embodiment provides a color wheel module. As shown in FIG. 1 and FIG. 2, the color wheel module includes a color wheel 1, a color wheel housing 2, and a heat dissipation module. The color wheel 1 includes a color wheel 10 having a wavelength converting material and a driving device for driving the color wheel 10 to rotate. The driving device includes a color wheel shaft 11 and a motor. The heat dissipation module includes a fan 30, a first heat dissipation component 31 and a second heat dissipation component 32.

The inside of the color wheel housing 2 has an air circulation circulation passage, wherein the color wheel 1, the fan 30 and the first heat dissipation assembly 31 are disposed in the air circulation passage inside the color wheel housing 2. And the fan 30 is disposed in a cold airflow section of the airflow circulation passage, the first heat dissipation component 31 is disposed in a hot airflow section of the airflow circulation passage, wherein the cold airflow section refers to a flow of the cooled gas In the section, the hot gas flow section refers to a flow section of the gas after absorbing heat. Based on this, the fan 30 is disposed in the cold airflow section, so that the fan 30 can directly blow cold air to the color wheel 1, so that the heat dissipation capability of the heat dissipation module can be improved; The hot air flow segment can directly convert the hot air that absorbs the heat of the color wheel 1 into cold air, thereby further improving the heat dissipation capability of the heat dissipation module.

In addition, the second heat dissipating component 32 is disposed outside the color wheel housing 2, and the second heat dissipating component 32 is thermally connected to the first heat dissipating component 31. Here, the thermal connection refers to the second heat dissipating component 32 and The first heat dissipating component 31 is capable of achieving a thermally conductive connection. Optionally, the second heat dissipation component 32 and the first heat dissipation component 31 are connected by a heat conductive material, and the second heat dissipation component 32 and the first heat dissipation component 31 are connected by a heat pipe 33.

The heat conductive material includes, but is not limited to, a heat pipe, a heat conductive sheet, etc., wherein the heat pipe and the heat conductive sheet may be selected from a metal material having a high thermal conductivity such as copper, aluminum, etc.; the heat pipe is a heat conducting superconducting function; The thermal element has a thermal conductivity of 20 to 30 times that of pure copper, which achieves thermal superconductivity by phase change of the internal liquid. Moreover, the heat pipes are mostly copper pipes for production processing and shaping.

In the embodiment of the present invention, the heat of the first heat dissipating component 31 is recirculated to the second heat dissipating component 32 by using a heat conductive material such as a heat pipe, and heat can be discharged to the outer space of the color wheel housing 2 for heat dissipation. The internal space of the color wheel housing 2 can be saved. On the one hand, the design of the projection device can be facilitated, and on the other hand, the heat dissipation of the second heat dissipation component 32 can be realized by utilizing the rapid heat dissipation capability of the external space, thereby ensuring the heat dissipation module. The overall heat dissipation efficiency can increase the conversion efficiency of the color wheel 1, and extend the service life of the color wheel 1, the light source system, and the projection system.

In order to further enhance the heat dissipation effect of the heat dissipation module, the first heat dissipation component 31 and the second heat dissipation component 32 in this embodiment may be a heat dissipation fin, and the heat dissipation fin is made of metal, alloy or ceramic material, preferably heat conduction. Lightweight alloys with good performance, such as C1100/AL6061/AL6063.

As shown in FIG. 1 , the first heat dissipating component 31 in the embodiment is a heat dissipating fin formed by a first heat dissipating component substrate 310 and a plurality of heat dissipating strips 311 , and the heat dissipating strips 311 are vertically fixed to the first heat dissipating component. On the substrate 310. In the embodiment of the present invention, an airflow generated by the fan 30 is blown toward the first heat dissipating component 31 in a direction parallel to the first heat dissipating component substrate 310. Since the heat dissipating strips 311 have a high contact area with the airflow, The heat dissipation can be well transmitted, and the heat dissipation strips 311 have a relatively small obstructive effect on the airflow, so that the airflow can be quickly and smoothly circulated in the airflow circulation channel. Therefore, the first heat dissipation component 31 can achieve the Fast and efficient heat dissipation of the heat generating parts such as the color wheel 1 and the color wheel shaft 11. In addition, the first heat dissipating component 31 can prevent the airflow short circuit from occurring when the airflow is ensured to flow smoothly. The first heat dissipating component substrate 310 and the heat dissipating strips 311 can be fabricated by an integral molding process. Of course, the present invention is not limited thereto.

Optionally, the first heat dissipating component 31 is a semiconductor refrigerator (semiconductor refrigerator, which is made by utilizing a Peltier effect of a semiconductor material. The so-called Peltier effect refers to a DC current passing through two semiconductors. When a galvanic material is composed of materials, one end absorbs heat and one end radiates heat.).

Further, the second heat dissipating component 32 in this embodiment may be a piece of heat dissipating fin. Since the contact area of the fin fins and the air is large, the heat dissipating efficiency is high, and therefore, the second heat dissipating component 32 can better transfer heat to the air outside the color wheel housing 2.

In this embodiment, the color wheel disc 10 has a disk shape, and one surface thereof has at least two wavelength conversion materials, and the at least two wavelength conversion materials include a wavelength conversion material that is stimulated to generate yellow light and a a wavelength conversion material that is excited to generate blue light to form white light required for projection by mixing yellow light and blue light generated by excitation; or, the at least two wavelength conversion materials include a wavelength conversion material that is excited to generate red light, The wavelength conversion material that is excited to generate green light and the wavelength conversion material that is excited to generate blue light to form a white light required for projection by mixing red, green, and blue light generated by excitation.

Wherein, during the operation of the color wheel module, not only the wavelength converting material on the color wheel disc 10 generates heat, but also the driving device (such as a motor) that drives the color wheel disc 10 to generate heat, based on Therefore, the airflow generated by the fan 30 in this embodiment is blown toward the color wheel 1 in a direction parallel to the color wheel disc 10, which can not only dissipate heat from the color wheel disc 10, but also can be perpendicular to the color. The driving device such as the color wheel shaft 11 provided on the wheel 10 dissipates heat.

Generally, the highest normal operating temperature required by the driving device such as the color wheel shaft 11 is lower than that of the color wheel disc 10, that is, the driving device of the color wheel shaft 11 and the like have higher heat dissipation capability for the heat dissipation module. High, based on this, in the embodiment of the present invention, the airflow generated by the fan 30 is blown toward the color wheel 1 in a direction parallel to the color wheel disc 10, taking into account the color wheel disc 10 and the color wheel shaft 11 While dissipating heat, the heat dissipation capability of the heat dissipation module is improved.

Further, the airflow absorbing the heat of the color wheel 1 is blown along the air circulation passage to the first heat dissipating component 31, and transfers heat to the first heat dissipating component 31, so that the first heat dissipating component 31 can pass through The second heat dissipating component 32 conducts heat generated by the color wheel 1 to the outside of the color wheel housing 2.

In this embodiment, the color wheel 1 further includes a filter wheel corresponding to the color wheel disc 10, and the filter wheel and the color wheel disc 10 are oppositely disposed on opposite sides of the color wheel shaft 11. Based on this, as shown in FIG. 2 and FIG. 3, a portion of the first heat dissipating component 31 adjacent to the color wheel 1 in the embodiment extends into a gap between the filter wheel and the color wheel 10, so that The color wheel 10 and the driving device can be better dissipated, but it should be noted that the first heat dissipating component 31 and the color wheel shaft 11 need a certain amount between the color wheel 10 and the filter wheel. The distance is such that the first heat dissipating component 31 does not affect the rotation of the color wheel 1.

In this embodiment, as shown in FIG. 1 , the first side surface of the color wheel housing 2 has a first opening 20 and a cover 21 sealing the first opening 20 , and the first heat dissipation component 31 passes through the first An opening 20 enters the interior of the color wheel housing 2 and is fixed to one side of the color wheel 1; the second side of the color wheel housing 2 has the second opening 22 and a seal sealing the second opening 22 The cover 23 is a side surface adjacent to the first side.

The sealing cover 23 is a sealing cover that opens toward the second opening 22, and seals the fan 30 inside the color wheel housing 2 by sealing the second opening 22. The second opening 22 of the color wheel housing 2 has a fitting portion 220 that fits the fan 30, and the fitting portion 220 fixes the fan 30 to the top of the color wheel 1, and the fitting portion One side of the 220 has an air inlet 221, and the other side has an air outlet 222, so that the airflow generated by the fan 30 is blown to the color wheel 1 through the air outlet 222, and the heat is dissipated through the first heat dissipation component 31. The airflow flows through the air inlet 221 to the fan 30.

Based on the structure shown in FIG. 1 , as shown in FIG. 2 and FIG. 3 , the airflow generated by the fan 30 in this embodiment is circulated along a mouth-shaped airflow circulation channel, wherein the directions indicated by the arrows in FIG. 2 and FIG. 3 indicate The flow direction of the air inside the color wheel housing 2. The airflow generated by the fan 30 is blown toward the color wheel 1 in a direction parallel to the color wheel 10 through the air outlet 222, and the color of the airflow on the side of the color wheel 10 after absorbing the heat of the color wheel 1 Under the blocking action of the wheel housing 2, the first heat dissipating component 31 is blown in a direction parallel to the first heat dissipating component substrate 310, and heat is transferred to the first heat dissipating component 31, after which the first heat dissipating component 31 is Under the blocking action of the color wheel housing 2 on one side, the air flow flows through the air inlet 221 to the fan 30 to circulate the air flow.

It should be noted that the fan 30 in this embodiment is an axial fan, and the axial fan refers to a fan in which the fan blade pushes air to flow in the same direction as the fan axis. Based on this, the airflow can circulate in one direction in the mouth-shaped air circulation circulation channel, thereby avoiding the phenomenon that the airflow is short-circuited, and improving the heat dissipation capability and the heat dissipation stability. The airflow short-circuit phenomenon refers to a phenomenon in which the airflow blown by the fan 30 passes through a heat generating member such as the color wheel disc 10, the color wheel shaft 11, and the like, and is directly blown out by the fan 30 without being cooled. The air flow short-circuit phenomenon in the present embodiment refers to a phenomenon in which the hot air flow is blown by the fan 30 without being cooled by the first heat radiation assembly 31.

In the embodiment of the present invention, the color wheel 1 is located inside the color wheel housing 2, and a surface of the color wheel housing 2 parallel to the color wheel 1 is provided with a light passing hole for the light source to be emitted. An excitation light is irradiated onto the color wheel 1 through the color wheel housing 2 to excite a laser beam, wherein the laser light can be emitted to the outside of the color wheel housing 2 through an optical path such as the light transmission hole.

It should be noted that the light-passing hole on the color wheel housing 2 is sealingly connected with the light source module or other modules in a projection system, so that the color wheel module and the light source module or the projection system are The other modules together form a sealed cavity to achieve sealing and dustproofing of the color wheel module. Alternatively, the color wheel module is directly disposed on the light-passing hole to separately seal the color wheel module, thereby achieving sealing and dustproofing of the color wheel module.

The color wheel 1 in this embodiment is a reflective color wheel. Based on this, a light-passing hole is disposed on a front surface of the color wheel housing 2 that is parallel to the color wheel 1. The excitation light enters the color wheel housing 2 from the light passing hole, and the laser light is also emitted from the light passing hole. Of course, the present invention is not limited thereto.

In other embodiments, the color wheel 1 can also be a transmissive color wheel. Correspondingly, the two sides of the color wheel housing 2 and the color wheel 1 are respectively disposed with the light-passing holes, that is, the front housing is disposed. The light-passing hole is also disposed at a corresponding position on the rear casing. At this time, the excitation light enters from the light-passing hole on the front casing, and the laser is received from the rear casing. The light passing hole is emitted. The front housing and the rear housing are fixed by screws or the like to form the color wheel housing, and the front housing and the rear housing are sealed by a sealing ring.

In this embodiment, the color wheel housing 2 is made of a heat dissipating material, so that the color wheel housing 2 can dissipate heat. Alternatively, the color wheel housing 2 is made of metal, alloy or ceramic, preferably light. The alloy, of course, the invention is not limited thereto. In addition, the outer side surface of the color wheel housing 2 in this embodiment may have heat dissipating means such as fins to improve the heat dissipation performance of the color wheel housing 2 itself. Of course, the present invention is not limited thereto.

It can be seen from the above structure that the color wheel module provided by the embodiment drives the air flowing inside the color wheel housing 2 through the airflow generated by the fan 30 inside the color wheel housing 2, in the air. The heat generated by the color wheel 1 is transmitted to the first heat dissipating component 31 inside the color wheel housing 2, and the first heat dissipating component 31 is thermally connected to the second heat dissipating component 32, and the second The heat dissipating component 32 is located outside the color wheel housing 2, so that heat in the first heat dissipating component 31 can be conducted to the outside of the color wheel housing 2 through the second heat dissipating component 32, so that the color wheel housing 2 can be The heat generated by the inner color wheel 1 is effectively discharged, thereby improving the conversion efficiency of the color wheel 1, and prolonging the service life of the color wheel 1, the light source system and the projection system.

Embodiment 2

The embodiment of the present invention provides a color wheel module. The color wheel module of the embodiment has substantially the same structure as the color wheel module of the first embodiment, and includes a color wheel 1, a color wheel housing 2 and a heat dissipation. The heat dissipation module includes a fan 30, a first heat dissipation component 31 and a second heat dissipation component 32, which are different in FIG. 4 and FIG. 5: the fan 30 in this embodiment. The generated airflow is circulated along the one-day airflow circulation passage, the fan 30 is fixed on the first heat dissipation assembly 31, and the fan 30 and the first heat dissipation assembly 31 are fixed on the same side of the color wheel 1.

As shown in FIG. 4, one side of the color wheel housing 2 in this embodiment has a first opening 24 and a cover plate 25 sealing the first opening 24; the fan 30 and the first heat dissipating component 31 pass the first An opening 24 enters the interior of the color wheel housing 2.

Optionally, the first heat dissipation component 31 of the embodiment includes a first heat dissipation component substrate 310 and a plurality of heat dissipation fins 311 , and the heat dissipation strips 311 are vertically fixed to the first heat dissipation component substrate 310 . on. The fan 30 is fixed to the first heat dissipating component substrate 310 by a fixing hole or the like, and an air flow generated by the fan 30 is blown toward the color wheel 1 in a direction parallel to the first heat dissipating component substrate 310; Preferably, the center of the airflow blown by the fan 30 directly faces the color wheel axle 11, that is, the fan 30 directly blows against the color wheel axle 11, so that efficient heat dissipation of the color wheel axle 11 can be preferentially ensured. Specifically, the heat dissipation strips 311 are not disposed in the middle portion of the first heat dissipation assembly substrate 310 to mount the fan 30 in an intermediate portion of the first heat dissipation assembly substrate 310.

The fan 30 in this embodiment is a centrifugal fan based on the above-mentioned fixing manner, wherein the centrifugal fan refers to a fan in which the blades of the fan push air to flow in a direction perpendicular to the fan shaft. As shown in FIG. 5, the fan 30 blows an air in a direction perpendicular to the fan shaft, wherein the direction of the fan shaft is in a direction indicated by a broken line in FIG. 5, and the air is in a direction parallel to the color wheel 10 Blowing toward the color wheel 1, absorbing the heat on the color wheel 1, the airflow flowing from the upper side of the color wheel 1 to the first heat dissipation under the blocking action of the color wheel housing 2 on the side of the color wheel 1 The component 31 is circulated from the upper side of the fan 30 to the fan 30 after being radiated by the first heat dissipating component 31; and the color wheel housing of the airflow on the side of the color wheel 1 after absorbing the heat on the color wheel 1 Under the blocking action of the body 2, the lower side of the color wheel 1 flows to the first heat dissipating component 31, and after the heat is dissipated through the first heat dissipating component 31, it is circulated from the lower side to the fan 30, based on which the upper side of the color wheel 1 is The gas stream that circulates and circulates the gas stream from the lower side of the color wheel 1 constitutes a day-shaped gas flow circulation passage.

The first heat dissipating component 31 and the second heat dissipating component 32 are thermally connected through a heat pipe 33. Of course, the present invention is not limited thereto. For example, the first heat dissipating component 31 and the second heat dissipating component 32 may also be The first heat dissipation component 31 extends through the cover plate 25 and is directly connected to the second heat dissipation component 32.

In this embodiment, as shown in FIG. 5, a side portion of the first heat dissipating component 31 adjacent to the color wheel 1 may extend into a gap between the filter wheel and the color wheel disc 10 so as to be better able to The color wheel 1 performs heat dissipation. Based on this, the color wheel 1 in the embodiment further includes a filter wheel corresponding to the color wheel 10 , and the filter wheel and the color wheel 10 are oppositely disposed on opposite sides of the color wheel shaft 11 . It should be noted that a certain gap is required between the first heat dissipating component 31 and the color wheel shaft 11 and the color wheel 10 and the filter wheel to prevent the first heat dissipating component 31 from affecting the rotation of the color wheel 1.

The color wheel module provided in this embodiment drives the air flowing inside the color wheel housing 2 through the airflow generated by the fan 30 inside the color wheel housing. Under the action of the air flow, The heat generated by the color wheel 1 is transmitted to the first heat dissipating component 31 inside the color wheel housing 2, since the first heat dissipating component 31 is thermally connected to the second heat dissipating component 32, and the second heat dissipating component 32 is located The color wheel housing 2 is externally disposed, so that heat in the first heat dissipation assembly 31 can be conducted to the outside of the color wheel housing 2 through the second heat dissipation assembly 32, so that the interior of the color wheel housing 2 can be The heat generated by the color wheel 1 is effectively discharged, thereby improving the conversion efficiency of the color wheel 1, and prolonging the service life of the color wheel 1, the light source system, and the projection system.

Embodiment 3

The color wheel module of the present embodiment is substantially the same as the color wheel module of the second embodiment, and includes a color wheel 1, a color wheel housing 2, and a color wheel module. The heat dissipation module includes a fan 30, a first heat dissipation component 31 and a second heat dissipation component 32. The difference is that, as shown in FIG. 6 and FIG. 7, the fan 30 is located at the first Between the heat dissipating component 31 and the color wheel 1, and an air flow generated by the fan 30 circulates along a returning type air circulation circulation path or a letter-shaped air circulation circulation path.

As shown in FIG. 6 , a first opening 26 is formed on one side of the color wheel housing 2 in the embodiment, and a cover plate 27 sealing the first opening 26 ; the first heat dissipation component 31 enters through the first opening 26 . The inside of the color wheel housing 2; the fan 30 is fixed between the first heat dissipation assembly 31 and the color wheel 1.

Specifically, the first heat dissipating component 31 of the present embodiment includes a first heat dissipating component substrate 310 and a plurality of heat dissipating strips 311 vertically disposed on the first heat dissipating component substrate 310. The heat dissipating strips 311 are in a sheet structure. . In addition, the heat dissipation module of the embodiment further includes a third heat dissipation component 34 thermally connected to the first heat dissipation component 31. The third heat dissipation component 34 is disposed inside the color wheel housing 2, and the first The heat dissipation component 31 and the third heat dissipation component 34 form an L-shaped heat dissipation fin, wherein the first heat dissipation component 31 and the third heat dissipation component 34 respectively correspond to two adjacent sides of the color wheel housing 2 The airflow generated by the fan 30 is blown toward the first heat dissipation component 31 in a direction parallel to the first heat dissipation component substrate 310.

In addition, in the embodiment, the third heat dissipating component 34 may include a third heat dissipating component substrate and the heat dissipating strips vertically disposed on the third heat dissipating component substrate, and the airflow generated by the fan 30 is perpendicular to the The direction of the third heat dissipating component substrate is blown toward the third heat dissipating component 34. As shown in FIG. 6 and FIG. 7 , the fan 30 located in the air circulation passage is an axial fan, and after the cold air is taken in from the side of the first heat dissipation component 31 in the air circulation passage, the air inlet 300 passes through the air inlet 300. The cold air is blown toward the color wheel 1 in a direction parallel to the color wheel 10, and the cold air absorbs the heat of the color wheel 1 and is converted into hot air. The hot air is separated from the first heat dissipating component 31 by the color wheel 1. The color wheel housing 2 of the side is returned to the side of the first heat dissipating component 31, and is blown to the first heat dissipating component 31 and the third heat dissipating component 34 in the air circulation passage through the air outlet 301 to dissipate heat The cool air delivered to the first heat dissipating component 31 and the third heat dissipating component 34 is circulated to the fan 30 under the blocking action of the third heat dissipating component 34. Based on this, as shown by the arrow in FIG. 7, the airflow inside the color wheel housing 2 in this embodiment circulates along the return type air circulation circulation passage or the mouth-shaped air circulation circulation passage.

In the structure shown in FIG. 7, the air inlet 300 has the windshield 28 extending along the circumferential direction of the color wheel disc 10, and the windshield 28 is for preventing the airflow of the air inlet 300 and the air outlet 301. Short circuit. In addition, the first heat dissipating component 31 is directly connected to the second heat dissipating component 32 through the cover plate 27, of course, the invention is not limited thereto. In other embodiments, the first heat dissipating component 31 and the second heat dissipating component 32 can also be connected through the heat pipe.

The color wheel module provided in this embodiment drives the air flowing inside the color wheel housing 2 through the airflow generated by the fan 30 inside the color wheel housing. Under the action of the air flow, The heat generated by the color wheel 1 is transmitted to the first heat dissipating component 31 inside the color wheel housing 2, since the first heat dissipating component 31 is thermally connected to the second heat dissipating component 32, and the second heat dissipating component 32 is located The color wheel housing 2 is externally disposed, so that heat of the first heat dissipating component 31 can be conducted to the outside of the color wheel housing 2 through the second heat dissipating component 32, so that the color of the interior of the color wheel housing 2 can be The heat generated by the wheel 1 is effectively discharged, thereby improving the conversion efficiency of the color wheel 1, prolonging the service life of the color wheel 1, the light source system and the projection system.

Embodiment 4

The embodiment further provides a light source system, the light source system includes a light source and a color wheel module, wherein the color wheel module is the color wheel module provided by any of the above embodiments, and an excitation light emitted by the light source After passing through the color wheel housing, it is incident on the color wheel to excite a laser beam for image projection.

The light source system drives an air flow inside the color wheel housing through an air flow generated by the fan inside the color wheel housing, and the heat generated by the color wheel is transmitted to the color under the action of the air flow. The first heat dissipating component inside the wheel housing is thermally connected to the second heat dissipating component, and the second heat dissipating component is located outside the color wheel housing, so that the first heat dissipating component is The heat can be transmitted to the outside of the color wheel housing through the second heat dissipating component, so that the heat generated by the color wheel inside the color wheel housing can be effectively discharged, thereby improving the conversion efficiency of the color wheel and prolonging the The life of the color wheel, the light source system, and the projection system.

Embodiment 5

The embodiment provides a projection system, which includes the light source system provided in Embodiment 4. The projection system drives an air inside the color wheel housing through an air flow generated by a fan inside the color wheel housing. Flowing, the heat generated by the color wheel is transmitted to a first heat dissipating component inside the color wheel housing by the air flow, wherein the first heat dissipating component is thermally connected to a second heat dissipating component, and the second The heat dissipating component is located outside the color wheel housing, so that heat in the first heat dissipating component can be conducted to the outside of the color wheel housing through the second heat dissipating component, so that the color wheel of the inner color wheel housing can be generated The heat is effectively discharged, thereby improving the conversion efficiency of the color wheel, and prolonging the service life of the color wheel, the light source system, and the projection system.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

<present invention>
1‧‧‧ color wheel
10‧‧‧Color wheel
11‧‧‧Color wheel axle
2‧‧‧Color wheel housing
20‧‧‧ first opening
21‧‧‧ Cover
22‧‧‧second opening
220‧‧‧Mate
221‧‧‧ air inlet
222‧‧‧air outlet
23‧‧‧ Sealing cover
24‧‧‧ first opening
25‧‧‧ Cover
26‧‧‧First opening
27‧‧‧ Cover
28‧‧‧wind strip
30‧‧‧Fan
300‧‧‧air inlet
301‧‧‧air outlet
31‧‧‧First heat sink assembly
310‧‧‧First heat sink assembly substrate
311‧‧‧heat strip
32‧‧‧Second heat sink
33‧‧‧heat pipe
34‧‧‧ Third heat dissipating component

1 is a schematic sectional view showing a first embodiment of a color wheel module of the present invention; FIG. 2 is a cross-sectional structural view showing a first embodiment of the color wheel module of the present invention; 1 is a front cross-sectional view showing a second embodiment of the color wheel module of the present invention; and FIG. 5 is a front cross-sectional view showing a second embodiment of the color wheel housing of the present invention. 6 is a schematic view showing a separate structure of a third embodiment of the color wheel module of the present invention; and FIG. 7 is a front cross-sectional view showing a third embodiment of the color wheel housing of the present invention.

1‧‧‧ color wheel

10‧‧‧Color wheel

11‧‧‧Color wheel axle

2‧‧‧Color wheel housing

20‧‧‧ first opening

21‧‧‧ Cover

22‧‧‧second opening

220‧‧‧Mate

221‧‧‧ air inlet

222‧‧‧air outlet

23‧‧‧ Sealing cover

30‧‧‧Fan

31‧‧‧First heat sink assembly

310‧‧‧First heat sink assembly substrate

311‧‧‧heat strip

32‧‧‧Second heat sink

33‧‧‧heat pipe

Claims (13)

A color wheel module includes: a color wheel comprising a color wheel having a wavelength conversion material; a color wheel housing having an air circulation passage therein; and a heat dissipation module including a fan and a first a heat dissipating component and a second heat dissipating component; wherein the color wheel, the fan and the first heat dissipating component are disposed in the air circulation passage, and the second heat dissipating component is disposed outside the color wheel housing, and the The second heat dissipating component is thermally coupled to the first heat dissipating component; wherein an airflow generated by the fan is blown toward the color wheel in a direction parallel to the color wheel disk, and is blown toward the first heat dissipating component along the airflow circulation channel, The heat generated by the color wheel is transmitted to the outside of the color wheel housing through the first heat dissipating component and the second heat dissipating component. The color wheel module of claim 1, wherein the first heat dissipating component is a heat dissipating fin comprising a first heat dissipating component substrate and a plurality of heat dissipating strips, wherein the heat dissipating strips are vertically fixed The first heat dissipation component is mounted on the substrate; and the airflow is blown toward the first heat dissipation component in a direction parallel to the first heat dissipation component substrate; further, the first heat dissipation component is a semiconductor refrigerator. The color wheel module of claim 1, wherein the second heat dissipating component is a piece of fin. The color wheel module of claim 1, wherein the fan is disposed in a cold airflow section of the airflow circulation passage, and the first heat dissipation component is disposed in a hot airflow section of the airflow circulation passage; The airflow generated by the fan circulates along a mouth-shaped airflow circulation passage. The color wheel module of claim 1, wherein the fan is disposed in a cold airflow section of the airflow circulation passage, and the first heat dissipation component is disposed in a hot airflow section of the airflow circulation passage, and The airflow generated by the fan circulates along the day-shaped airflow circulation passage. The color wheel module of claim 5, wherein the fan is fixed to the first heat dissipating component, and the fan is a centrifugal fan. The color wheel module of claim 1, wherein the fan is disposed in a cold airflow section of the airflow circulation passage; and the first heat dissipation component is disposed in a hot airflow section of the airflow circulation passage. And the airflow generated by the fan circulates along a return airflow circulation channel. The color wheel module of claim 7, wherein the heat dissipation module further comprises a third heat dissipation component disposed inside the color wheel housing, and the third heat dissipation component is The first heat dissipation component constitutes an L-shaped heat dissipation fin. The color wheel module of claim 4, wherein the fan is an axial fan. The color wheel module of claim 1, wherein the color wheel further comprises a color wheel axle and a filter wheel, and the color wheel disk and the filter wheel are respectively disposed on two sides of the color wheel axis, and The airflow generated by the fan is blown toward the color wheel shaft and the color wheel disk and the filter wheel on both sides of the color wheel axis in a direction parallel to the color wheel disk; and the first heat dissipation component portion extends to the Within the gap between the color wheel and the filter wheel. The color wheel module of claim 1, wherein the first heat dissipating component and the second heat dissipating component are connected by a heat conductive material; and/or the first heat dissipating component and the second heat dissipating component The components are connected by a heat pipe. A light source system, comprising: a light source and a color wheel module, wherein the color wheel module is a color wheel module according to any one of claims 1 to 11, and an excitation of the light source is emitted Light passes through the color wheel housing and is incident on the wavelength conversion material of the color wheel to excite a laser beam for image projection. A projection system comprising the light source system of claim 12 of the patent application.