CN110609433A - Projection device - Google Patents
Projection device Download PDFInfo
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- CN110609433A CN110609433A CN201910926905.4A CN201910926905A CN110609433A CN 110609433 A CN110609433 A CN 110609433A CN 201910926905 A CN201910926905 A CN 201910926905A CN 110609433 A CN110609433 A CN 110609433A
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- China
- Prior art keywords
- noise reduction
- side wall
- fluorescent wheel
- noise
- projection device
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The application discloses projection equipment belongs to projection technical field. The projection device includes: luminescent device, fluorescence wheel and fixed bolster, luminescent device are used for the outgoing excitation beam, and the fluorescence wheel sets up on luminescent device's light path for receive excitation beam and produce and receive the laser beam, and the fixed bolster includes: the noise reduction device comprises a shell, a cover plate, a noise reduction element and a plurality of locking elements; a plurality of first through holes are formed in the first side wall of the shell, and the cover plate is connected with the shell in a sealing mode; the first side wall and the second side wall opposite to the first side wall are provided with light through holes. In this application, can cover the fluorescence wheel in the inner chamber of casing through the apron to the mode through stopping noise propagation shields off some noises, in addition, can absorb and weaken some noises through the noise reduction component that can be elastic deformation under the exogenic action, thereby can effectively reduce whole projection equipment's noise, and then improve projection equipment's whole quality.
Description
Technical Field
The application relates to the technical field of projection, in particular to projection equipment.
Background
The projection apparatus generally includes a light emitting device, a fluorescent wheel, a fixed support, an optical-mechanical system, and a lens, where the light emitting device is configured to emit an excitation light beam, the fluorescent wheel is fixed on the fixed support and configured to perform color change processing on the excitation light beam to emit three primary color light beams to the optical-mechanical system, the optical-mechanical system is configured to perform modulation processing on the three primary color light beams and emit the modulated light beams to the lens, and the lens is configured to receive the light beams processed by the optical-mechanical system to obtain a projection picture. Wherein the fluorescent wheel can be rotated in order to emit the tricolor light beam. And during the rotation of the fluorescent wheel, noise is inevitably generated, so that the noise of the whole projection device is relatively large.
Disclosure of Invention
The application provides a projection equipment, can solve projection equipment's the great problem of noise. The technical scheme is as follows:
a projection device, comprising:
a light emitting device for emitting an excitation light beam;
the fluorescent wheel is arranged on the light path of the light-emitting device and used for receiving the excitation light beam to generate a received laser beam;
still include the fixed bolster, the fixed bolster includes: the noise reduction device comprises a shell, a cover plate, a noise reduction element and a plurality of locking elements;
a plurality of first through holes are formed in the first side wall of the shell and correspond to the plurality of locking elements in a one-to-one mode, the plurality of locking elements are used for fixedly connecting the fluorescent wheel to the inner surface of the first side wall through the plurality of first through holes, and the cover plate is connected with the shell in a sealing mode;
the noise reduction element can be clamped between the inner surface of the first side wall of the shell and the fluorescent wheel and can be elastically deformed under the action of external force;
the first side wall and the second side wall opposite to the first side wall are provided with light through holes, and the light through holes are used for transmitting the excitation light beams emitted by the light emitting devices and the received laser beams generated by the fluorescent wheel.
Optionally, the noise reduction element comprises: a noise reduction spacer;
set up a plurality of second through-holes on the gasket of making an uproar, a plurality of second through-holes with a plurality of locking component one-to-ones, every locking component's first end pass corresponding first through-hole and the second through-hole that corresponds in proper order, and be used for with fluorescence wheel fixed connection, every locking component's second end can be spacing on the surface of first lateral wall, just the gasket of making an uproar can produce elastic deformation under the exogenic action.
Optionally, the material of the noise reduction gasket is heat-conducting silicone rubber or heat-conducting fluororubber.
Optionally, the noise reduction element comprises: a plurality of noise reduction washers in one-to-one correspondence with the plurality of locking elements;
each noise reduction washer of the plurality of noise reduction washers is sleeved on the corresponding locking element, each noise reduction washer can be clamped between the inner surface of the first side wall and the fluorescent wheel, and each noise reduction washer can be elastically deformed under the action of external force.
Optionally, the noise reduction element comprises: a plurality of springs, the plurality of springs and the plurality of locking elements in one-to-one correspondence;
each spring of the plurality of springs is sleeved over a corresponding locking element and each spring is clampable between the inner surface of the first sidewall and the fluorescent wheel.
Optionally, the noise reduction element further comprises: a plurality of noise reduction washers in one-to-one correspondence with the plurality of locking elements;
each of the plurality of noise reduction washers is fitted over a corresponding locking element, each of the plurality of springs is fitted over a corresponding noise reduction washer, each noise reduction washer is clampable between the inner surface of the first sidewall and the fluorescent wheel, and each noise reduction washer is elastically deformable under an external force.
Optionally, the material of the noise reduction gasket is silicon rubber or fluorine rubber.
Optionally, the fixing bracket further comprises: the radiator is fixedly connected with the outer surface of the first side wall of the shell.
Optionally, the heat sink comprises: a mounting plate and a plurality of heat dissipating fins;
the mounting panel with the surface fixed connection of the first lateral wall of casing, just the plane at mounting panel place with the plane at first lateral wall place is parallel, a plurality of heat radiation fins are fixed on the mounting panel.
Optionally, an avoidance hole is formed in the first side wall, and one end, facing the noise reduction element, of the fluorescence wheel can penetrate through the noise reduction element and extend into the avoidance hole.
The beneficial effects that technical scheme that this application provided brought can include at least:
in this application, because a plurality of locking component with fluorescence wheel fixed connection on the internal surface of the first lateral wall of casing, consequently, can cover the fluorescence wheel in the inner chamber of casing through the apron to can block the propagation of the noise that the fluorescence wheel produced, and then realize the shielding to some noise. In addition, the noise reduction element can be clamped between the inner surface of the first side wall of the shell and the fluorescent wheel and can be elastically deformed under the action of external force, so that the fluorescent wheel is flexibly connected with the inner surface of the first side wall, and noise generated by vibration of the fluorescent wheel can be absorbed and weakened by elastic deformation of the noise reduction element when the noise is transmitted to the first side wall through the noise reduction element. In summary, since a part of the noise can be shielded by covering the fluorescent wheel in the inner cavity of the housing, and in addition, a part of the noise can be absorbed and weakened by the noise reduction element, the noise of the whole projection device can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a projection apparatus according to an embodiment of the present disclosure;
FIG. 2 is a front view of a mounting bracket according to an embodiment of the present disclosure;
fig. 3 is a rear view structural diagram of a fixing bracket according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a noise reduction gasket according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of another fixing bracket provided in the embodiments of the present application;
FIG. 6 is a schematic structural diagram of another fixing bracket provided in the embodiments of the present application;
FIG. 7 is a diagram illustrating the positional relationship between a noise reduction washer, a locking element, and a spring according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of another fixing bracket provided in an embodiment of the present application.
Reference numerals:
01: a fluorescent wheel;
1: a housing; 2: a cover plate; 3: a noise reduction element; 4: a locking element; 5: a heat sink;
11: a first side wall; 12: a second side wall; 31: a noise reduction spacer; 32: a noise reduction washer; 33: a spring; 51: mounting a plate; 52: heat dissipation fins;
111: a first through hole; 112: avoiding holes; 121: a light through hole; 311: a second via.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Before explaining the embodiments of the present application in detail, the operation principle of the projection apparatus in the embodiments of the present application will be briefly described.
Referring to fig. 1, a projection apparatus generally includes a light emitting device, a fluorescent wheel, a fixing bracket, an optical system, a light source driver, and a lens, where the light emitting device is configured to emit an excitation light beam under the driving of the light source driver, the fluorescent wheel is fixed on the fixing bracket and is configured to perform a color change process on the excitation light beam to emit three primary color light beams to the optical system, the optical system is configured to modulate the three primary color light beams and emit the modulated light beams to the lens, and the lens is configured to receive the light beams processed by the optical system to obtain a projection picture.
Wherein, the fluorescent wheel is usually a rotating device, and it can be understood that the rotating device usually generates noise in the rotating process, so that the noise of the whole projection equipment is relatively large, and the whole quality of the projection equipment is further influenced. Based on the scene, the embodiment of the application provides the fixing support capable of weakening the noise of the projection equipment.
Fig. 1 is a schematic diagram of an operating principle of a projection apparatus according to an embodiment of the present disclosure, fig. 2 is a schematic diagram of a front view angle structure of a fixing bracket according to an embodiment of the present disclosure, and fig. 3 is a schematic diagram of a rear view angle structure of a fixing bracket according to an embodiment of the present disclosure. Referring to fig. 1, 2 and 3, the projection apparatus may include: the light-emitting device is used for emitting an excitation beam, the fluorescent wheel is arranged on a light path of the light-emitting device and used for receiving the excitation beam and generating a received laser beam, and the fixing support can comprise: a housing 1, a cover plate 2, a noise reducing element 3 and a plurality of locking elements 4. The first sidewall 11 of the housing 1 is provided with a plurality of first through holes 111 (not shown), the plurality of first through holes 111 correspond to the plurality of locking elements 4 one-to-one, the plurality of locking elements 4 are used for fixedly connecting the fluorescent wheel 01 to the inner surface of the first sidewall 11 through the plurality of first through holes 111, and the cover plate 2 is hermetically connected with the housing 1. The noise reducing element 3 can be clamped between the inner surface of the first side wall 11 of the housing 1 and the luminescent wheel 01, and the noise reducing element 3 can be elastically deformed under the action of an external force. The first side wall 11 and the second side wall 12 opposite to the first side wall 11 are provided with light-passing holes 121, and the light-passing holes 121 are used for transmitting the excitation light beams emitted by the light-emitting device and the received laser beams generated by the fluorescent wheel 01.
Since the plurality of locking members 4 are used to fixedly couple the fluorescent wheel 01 to the inner surface of the first sidewall 11 through the plurality of first through holes 111, the fluorescent wheel 01 can be covered in the inner cavity of the housing 1 by the cover plate 2, so that the transmission of noise generated from the fluorescent wheel 01 can be blocked, thereby achieving shielding of a part of the noise.
In addition, since the noise reduction element 3 can be clamped between the inner surface of the first side wall 11 of the housing 1 and the fluorescent wheel 01, and the noise reduction element 3 can be elastically deformed under the action of an external force, the fluorescent wheel 01 is flexibly connected with the inner surface of the first side wall 11, so that noise generated by vibration of the fluorescent wheel 01 can be absorbed and weakened by the elastic deformation of the noise reduction element when the noise is transmitted to the first side wall through the noise reduction element 3.
In summary, a part of the noise can be shielded by covering the fluorescent wheel 01 in the inner cavity of the housing 1, and in addition, a part of the noise can be absorbed and weakened by the noise reduction element 3, so that the noise of the whole projection device can be effectively reduced.
The plurality of locking elements 4 may be a plurality of screws, and accordingly, the fluorescent wheel 01 may be provided with a plurality of threaded holes corresponding to the plurality of screws, so that each screw may sequentially pass through the corresponding first through hole 111 to be screwed on the corresponding threaded hole, thereby fixedly connecting the fluorescent wheel 01 to the inner surface of the first sidewall 11.
Wherein, the shape of the shell 1 can be a cuboid, and correspondingly, the cover plate 2 can be a rectangle. Of course, the housing 1 and the cover plate 2 may also be in other shapes that can be matched, and the shape of the housing 1 and the shape of the cover plate 2 are not specifically limited in the embodiment of the present application.
In addition, in consideration of the problem of heat dissipation, the material of the casing 1 and the cover plate 2 may be metal, for example, the material of the casing 1 and the cover plate 2 may be aluminum, and of course, the material of the casing 1 and the cover plate 2 may also be other materials, which is not specifically limited in the embodiment of the present application. In addition, it should be noted that the materials of the case 1 and the cover plate 2 may be the same or different, for example, the material of the case 1 is aluminum, the material of the cover plate 2 is iron, and the embodiment of the present application does not specifically limit whether the materials of the case 1 and the cover plate 2 are the same.
It should be noted that the cover plate 2 and the housing 1 can be connected in a sealing manner by a sealing ring, and certainly, the cover plate 2 and the housing 1 can also be connected in a sealing manner by other manners, that is, only the cover plate 2 and the housing 1 need to be connected in a sealing manner, and the embodiment of the present application does not specifically limit the sealing connection manner between the cover plate 2 and the housing 1.
It should also be noted that in some embodiments, a plurality of locking elements 4 may pass through noise reduction element 3 when noise reduction element 3 is clamped between the inner surface of first sidewall 11 and fluorescent wheel 01 by a plurality of locking elements 4. Of course, in other embodiments, the plurality of locking elements 4 may not penetrate through the noise reduction element 3, that is, the noise reduction element 3 may be clamped between the inner surface of the first sidewall 11 and the fluorescent wheel 01 by the plurality of locking elements 4, and the embodiment of the present application is not particularly limited to whether the plurality of locking elements 4 penetrate through the noise reduction element 3.
In some embodiments, referring to fig. 4, the noise reduction element 3 may comprise: a noise reduction spacer 31. The noise reduction gasket 31 can be provided with a plurality of second through holes 311, the plurality of second through holes 311 correspond to the plurality of locking elements 4 one by one, the first end of each locking element 4 sequentially penetrates through the corresponding first through hole 111 and the corresponding second through hole 311 and is used for being fixedly connected with the fluorescent wheel 01, the second end of each locking element 4 can be limited on the outer surface of the first side wall 11, and the noise reduction gasket 31 can be elastically deformed under the action of external force.
The shape of the noise reduction spacer 31 may be a circle, and certainly, the shape of the noise reduction spacer 31 may also be a rectangle or other shapes, which is not specifically limited in this embodiment of the application. In addition, the material of the noise reduction gasket 31 may be silicone rubber or other materials capable of generating elastic deformation under the action of an external force, which is not specifically limited in the embodiment of the present application.
It should be noted that, in the working process of the fluorescent wheel 01, besides noise may be generated, a large amount of heat may be generated, and when the heat generated by the fluorescent wheel 01 cannot be timely transmitted out of the fixing bracket, the performance of the fluorescent wheel 01 may be affected, based on this, in some embodiments, the material of the noise reduction gasket 31 may be silicon rubber or fluorine rubber having a heat conduction function, that is, the material of the noise reduction gasket 31 may be heat conduction silicon rubber or heat conduction fluorine rubber.
It can be understood that, because the thermal conductivity K of the heat-conducting silicone rubber and the heat-conducting fluororubber is generally 1-5W/mK, and has good thermal conductivity, the noise reduction gasket 31 made of the heat-conducting silicone rubber or the heat-conducting fluororubber can have good thermal conductivity, so that when the fluorescent wheel 01 generates heat, the heat can be well transferred to the first side wall 11 through the noise reduction gasket 31, and then the heat is dissipated through the outer surface of the first side wall 11.
In other embodiments, referring to fig. 5, the noise reduction element 3 may comprise: a plurality of noise reduction washers 32, and a plurality of locking elements 4 are in one-to-one correspondence. Each noise reduction washer 32 of the plurality of noise reduction washers 32 is fitted over the corresponding locking element 4, each noise reduction washer 32 can be clamped between the inner surface of the first sidewall 11 and the fluorescent wheel 01, and each noise reduction washer 32 can be elastically deformed by an external force.
The material of the noise reduction gasket 32 may be silicon rubber or fluororubber, and certainly, the material of the noise reduction gasket 32 may also be heat-conducting rubber, such as heat-conducting silicon rubber or heat-conducting fluororubber, and the material of the noise reduction gasket 32 is not specifically limited in the embodiment of the present application.
In addition, the shape of the noise reduction washer 32 may be a circular ring shape, and of course, the noise reduction washer 32 may also be other shapes, so long as each noise reduction washer 32 can be sleeved on the corresponding locking element 4, and each noise reduction washer 32 can be clamped between the inner surface of the first side wall 11 and the fluorescent wheel 01.
In still other embodiments, the noise reduction element 3 may include: the plurality of springs 33, the plurality of springs 33 and the plurality of locking members 4 correspond one to one. Each spring 33 of the plurality of springs 33 is fitted over a corresponding locking element 4, and each spring 33 can be clamped between the inner surface of the first side wall 11 and the fluorescent wheel 01.
It can be understood that the spring 33 is usually made of metal, and therefore can elastically deform under the action of an external force and has a good thermal conductivity, so that when each spring 33 of the plurality of springs 33 is sleeved on the corresponding locking element 4, and each spring 33 can be clamped between the inner surface of the first sidewall 11 and the fluorescent wheel 01, a part of noise generated by the fluorescent wheel 01 due to vibration can be weakened and absorbed based on the elastic deformation of each spring 33, and at the same time, heat generated by the fluorescent wheel 01 can be transmitted to the first sidewall 11 through the plurality of springs 33 and then transmitted out of the fixing bracket, so that not only the overall quality of the projection apparatus can be improved in terms of noise, but also the overall quality of the projection apparatus can be improved in terms of heat dissipation.
It should be noted that, in order to provide the plurality of springs 33 with good heat conduction performance, the end surface of the first end and the end surface of the second end of each spring 33 in the plurality of springs 33 may be of a flat structure, so that the end surface of the first end of each spring 33 may be in sufficient contact with the fluorescent wheel 01, and the end surface of the second end of each spring 33 may be in sufficient contact with the inner surface of the first side wall 11, thereby improving the heat conduction performance of each spring 33.
Further, in some embodiments, a first end of each spring 33 may be provided with a first metal plate, a second end of each spring 33 may be provided with a second metal plate, the first metal plate and the second metal plate are respectively sleeved on the corresponding locking element 4, the first metal plate is in contact with the fluorescent wheel 01, and the second metal plate is in contact with the inner surface of the first sidewall 11, so that the contact area between each spring 33 and the fluorescent wheel 01 can be increased through the first metal plate, and the heat conduction efficiency between the spring 33 and the fluorescent wheel 01 can be further increased. Similarly, the second metal sheet may increase a contact area of each spring 33 with the inner surface of the first sidewall 11, thereby increasing a heat transfer efficiency between the spring 33 and the first sidewall 11.
However, in an actual usage scenario, the strength of the spring 33 is often insufficient, so that when the fluorescent wheel 01 starts to rotate, the fluorescent wheel 01 may shake relatively to the inner surface of the first sidewall 11 to a large extent under the inertia effect of the fluorescent wheel 01, and then the fluorescent wheel 01 may collide with other parts of the housing 1, so as to generate a larger noise, or even the fluorescent wheel 01 may be damaged.
Based on this, in some embodiments, referring to fig. 6 and 7, the noise reduction element 3 may further include: a plurality of noise reduction washers 32, and a plurality of locking elements 4 are in one-to-one correspondence. Each noise reduction washer 32 of the plurality of noise reduction washers 32 is fitted over the corresponding locking element 4, each spring 33 of the plurality of springs 33 is fitted over the corresponding noise reduction washer 32, each noise reduction washer 32 can be clamped between the inner surface of the first sidewall 11 and the fluorescent wheel 01, and each noise reduction washer 32 can be elastically deformed by an external force.
It should be noted that, in order to fit each spring 33 on the corresponding noise reduction washer 32, the inner diameter of each spring 33 needs to be larger than the outer diameter of the corresponding noise reduction washer 32. In addition, it should be understood that in order for the first end of each spring 33 to contact the fluorescent wheel 01 and the second end of each spring 33 to contact the inner surface of the first sidewall 11, the natural length of each spring 33 needs to be greater than the thickness of the corresponding noise reduction washer 32.
Based on the above description, after the heat generated by the fluorescent wheel 01 is transferred to the first sidewall 11, in order to facilitate timely heat dissipation of the first sidewall 11, in some embodiments, referring to fig. 8, the fixing bracket may further include: and the radiator 5 is fixedly connected with the outer surface of the first side wall 11 of the shell 1. In this way, the heat on the first side wall 11 can be absorbed by the heat sink 5, and then the heat can be rapidly dissipated by the heat sink 5, so as to reduce the temperature of the environment around the fluorescent wheel 01, and avoid the influence on the performance of the fluorescent wheel 01.
In some embodiments, referring to fig. 8, the heat sink 5 may include: a mounting plate 51 and a plurality of cooling fins 52. The mounting plate 51 is fixedly connected to the outer surface of the first side wall 11 of the housing 1, the plane of the mounting plate 51 is parallel to the plane of the first side wall 11, and the plurality of heat dissipation fins 52 are fixed to the mounting plate 51. Thus, the heat dissipation area of the heat sink 5 can be increased by the heat dissipation fins 52, and the temperature of the environment around the fluorescent wheel 01 can be rapidly reduced.
In some embodiments, referring to fig. 3, the first sidewall 11 may be provided with an avoiding hole 112, and an end of the fluorescent wheel 01 facing the noise reduction element can pass through the noise reduction element 3 and extend into the avoiding hole 112. In this way, interference with the first side wall 11 at the end of the luminescent wheel 01 facing the noise reducing element 3 is avoided.
When the heat sink 5 is fixedly connected to the outer surface of the first sidewall 11 of the housing 1, further, in some embodiments, an end of the fluorescent wheel 01 facing the noise reduction element 3 may pass through the noise reduction element 3, extend into the avoiding hole 112, and contact with the heat sink 5, so that heat on the fluorescent wheel 01 can be directly transferred to the heat sink 5 through the end of the fluorescent wheel 01 close to the first sidewall 11, and the temperature of the fluorescent wheel 01 can be reduced more quickly.
Furthermore, in some embodiments, a damping cotton may be sandwiched between the end of the fluorescent wheel 01 facing the noise reduction element 3 and the heat sink 5, so that when noise generated by vibration of the fluorescent wheel 01 is transmitted to the heat sink, the noise can be weakened and absorbed by elastic deformation of the damping cotton to reduce transmission of noise along the fluorescent wheel 01 facing the end of the heat sink.
It should be noted that the shape of the avoidance hole 112 may be a circle, and of course, the shape of the avoidance hole 112 may also be other shapes, which is not specifically limited in the embodiment of the present application.
In the embodiment of the present application, since the plurality of locking elements 4 are used to fixedly connect the fluorescent wheel 01 to the inner surface of the first sidewall 11 through the plurality of first through holes 111, the fluorescent wheel 01 can be covered in the inner cavity of the housing 1 by the cover plate 2, so that the transmission path of noise generated by the fluorescent wheel 01 can be blocked, and thus, a part of the noise can be shielded.
In addition, since the noise reduction element 3 can be clamped between the inner surface of the first side wall 11 of the housing 1 and the fluorescent wheel 01, and the noise reduction element 3 can be elastically deformed under the action of an external force, the fluorescent wheel 01 is flexibly connected with the inner surface of the first side wall 11, so that noise generated by vibration of the fluorescent wheel 01 can be absorbed and weakened by the elastic deformation of the noise reduction element when the noise is transmitted to the first side wall through the noise reduction element 3.
In addition, since the noise reduction element 3 may include a plurality of noise reduction washers 32 and a plurality of springs 33, heat may be rapidly transferred to the first sidewall 11 through the plurality of springs 33, and then rapidly dissipated through the heat sink 5 fixedly connected to the outer surface of the first sidewall 11, so as to reduce the ambient temperature around the fluorescent wheel 01, and avoid the influence of high temperature on the performance of the fluorescent wheel 01.
In summary, because a part of noise can be shielded by covering the fluorescent wheel 01 in the inner cavity of the housing 1, in addition, the noise reduction element 3 can absorb and weaken a part of noise, and in addition, the fluorescent wheel 01 can be rapidly cooled by the heat sink 5, so that the noise and temperature of the whole projection device can be effectively reduced, and the overall quality of the projection device can be further improved.
Fig. 2 is a front view structural schematic diagram of a fixing bracket according to an embodiment of the present application. Referring to fig. 2, the fixing bracket may include: a housing 1, a cover plate 2, a noise reducing element 3 and a plurality of locking elements 4. The first side wall 11 of the housing 1 is provided with a plurality of first through holes 111, the plurality of first through holes 111 correspond to the plurality of locking elements 4 one-to-one, the plurality of locking elements 4 are used for fixedly connecting the fluorescent wheel 01 to the inner surface of the first side wall 11 through the plurality of first through holes 111, and the cover plate 2 is connected with the housing 1 in a sealing manner. The noise reducing element 3 can be clamped between the inner surface of the first side wall 11 of the housing 1 and the luminescent wheel 01, and the noise reducing element 3 can be elastically deformed under the action of an external force. The first side wall 11 and the second side wall 12 opposite to the first side wall 11 are both provided with a light through hole 121, and the light through hole 121 is used for transmitting the excitation light beam emitted by the light emitting device and the received laser beam emitted by the fluorescent wheel 01.
It should be noted that, the housing 1, the cover plate 2, the noise reduction element 3 and the plurality of locking elements 4 referred to in the embodiments of the present application may be as described in the foregoing embodiments, and the embodiments of the present application are not described herein again.
In the embodiment of the present application, since the plurality of locking elements 4 are used to fixedly connect the fluorescent wheel 01 to the inner surface of the first sidewall 11 through the plurality of first through holes 111, the fluorescent wheel 01 can be covered in the inner cavity of the housing 1 by the cover plate 2, so that the transmission of noise generated by the fluorescent wheel 01 can be blocked, and a part of the noise can be shielded.
In addition, since the noise reduction element 3 can be clamped between the inner surface of the first side wall 11 of the housing 1 and the fluorescent wheel 01, and the noise reduction element 3 can be elastically deformed under the action of an external force, the fluorescent wheel 01 is flexibly connected with the inner surface of the first side wall 11, so that noise generated by vibration of the fluorescent wheel 01 can be absorbed and weakened by the elastic deformation of the noise reduction element when the noise is transmitted to the first side wall through the noise reduction element 3.
In summary, a part of noise can be shielded by covering the fluorescent wheel 01 in the inner cavity of the housing 1, and in addition, a part of noise can be absorbed and weakened by the noise reduction element 3, so that the noise of the whole projection device can be effectively reduced, and the overall quality of the projection device can be improved.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A projection device, comprising:
a light emitting device for emitting an excitation light beam;
the fluorescent wheel is arranged on the light path of the light-emitting device and used for receiving the excitation light beam to generate a received laser beam;
still include the fixed bolster, its characterized in that, the fixed bolster includes: the noise reduction device comprises a shell (1), a cover plate (2), a noise reduction element (3) and a plurality of locking elements (4);
a plurality of first through holes (111) are formed in a first side wall (11) of the shell (1), the plurality of first through holes (111) correspond to the plurality of locking elements (4) in a one-to-one manner, the plurality of locking elements (4) are used for fixedly connecting the fluorescent wheel (01) to the inner surface of the first side wall (11) through the plurality of first through holes (111), and the cover plate (2) is connected with the shell (1) in a sealing manner;
the noise reduction element (3) can be clamped between the inner surface of the first side wall (11) of the housing (1) and the fluorescent wheel (01), and the noise reduction element (3) can be elastically deformed under the action of external force;
the first side wall (11) and the second side wall (12) opposite to the first side wall (11) are provided with light through holes (121), and the light through holes (121) are used for transmitting an excitation light beam emitted by the light emitting device and a received laser beam generated by the fluorescent wheel (01).
2. The projection device according to claim 1, wherein the noise reduction element (3) comprises: a noise reduction spacer (31);
the noise reduction gasket (31) is provided with a plurality of second through holes (311), the second through holes (311) are in one-to-one correspondence with the locking elements (4), the first end of each locking element (4) sequentially penetrates through the corresponding first through hole (111) and the corresponding second through hole (311), the first end of each locking element (4) is used for being fixedly connected with the fluorescent wheel (01), the second end of each locking element (4) can be limited on the outer surface of the first side wall (11), and the noise reduction gasket (31) can be elastically deformed under the action of external force.
3. The projection device of claim 2, wherein the noise reduction gasket (31) is made of a thermally conductive silicone rubber or a thermally conductive fluoro rubber.
4. The projection device according to claim 1, wherein the noise reduction element (3) comprises: a plurality of noise reduction washers (32), the plurality of noise reduction washers (32) and the plurality of locking elements (4) in a one-to-one correspondence;
each noise reduction washer (32) of the plurality of noise reduction washers (32) is fitted over the corresponding locking element (4), each noise reduction washer (32) is clampable between the inner surface of the first side wall (11) and the luminescent wheel (01), and each noise reduction washer (32) is elastically deformable under the action of an external force.
5. The projection device according to claim 1, wherein the noise reduction element (3) comprises: a plurality of springs (33), the plurality of springs (33) and the plurality of locking elements (4) corresponding one to one;
each spring (33) of the plurality of springs (33) is sleeved on the corresponding locking element (4), and each spring (33) can be clamped between the inner surface of the first side wall (11) and the fluorescent wheel (01).
6. The projection device according to claim 5, wherein the noise reduction element (3) further comprises: a plurality of noise reduction washers (32), the plurality of noise reduction washers (32) and the plurality of locking elements (4) in a one-to-one correspondence;
each noise reduction washer (32) of the plurality of noise reduction washers (32) is fitted over a corresponding locking element (4), each spring (33) of the plurality of springs (33) is fitted over a corresponding noise reduction washer (32), each noise reduction washer (32) is clampable between the inner surface of the first sidewall (11) and the fluorescent wheel (01), and each noise reduction washer (32) is elastically deformable by an external force.
7. The projection device of claim 6, wherein the noise reduction gasket (32) is made of silicone rubber or fluoro-rubber.
8. The projection device of claim 1, wherein the projection device further comprises: the radiator (5), radiator (5) with the surface fixed connection of first lateral wall (11) of casing (1).
9. The projection device according to claim 8, wherein the heat sink (5) comprises: a mounting plate (51) and a plurality of heat dissipating fins (52);
the mounting plate (51) is fixedly connected with the outer surface of the first side wall (11) of the shell (1), the plane where the mounting plate (51) is located is parallel to the plane where the first side wall (11) is located, and the plurality of radiating fins (52) are fixed on the mounting plate (51).
10. A projection device as claimed in claim 1, characterized in that an avoiding hole (112) is provided in the first side wall (11), through which noise reducing element (3) the end of the luminescent wheel (01) facing the noise reducing element (3) can pass, and which protrudes into the avoiding hole (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910926905.4A CN110609433A (en) | 2019-09-27 | 2019-09-27 | Projection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910926905.4A CN110609433A (en) | 2019-09-27 | 2019-09-27 | Projection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110609433A true CN110609433A (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910926905.4A Pending CN110609433A (en) | 2019-09-27 | 2019-09-27 | Projection device |
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| Country | Link |
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| CN (1) | CN110609433A (en) |
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| US20020003704A1 (en) * | 2000-05-25 | 2002-01-10 | Hideki Ohmae | Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device |
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Application publication date: 20191224 |