A fluorescent wheel device

Abstract

The present invention discloses a fluorescent wheel device, belonging to the technical field of optical projection equipment, comprising a device body, a drive motor, a connecting shaft, a fluorescent wheel, and a heat dissipation assembly. The fluorescent wheel has a hollow cavity and a connecting port connected to the hollow cavity. The drive motor mounted on the device body is connected to the fluorescent wheel via the connecting shaft, and a fixed disk is fixedly sleeved on the output shaft. The heat dissipation assembly comprises a sleeve, a first rotary joint, a second rotary joint, a first connecting pipe, a second connecting pipe, a cooling box, and a circulating pump. The sleeve is sleeved outside the connecting shaft, with one end sealed to the fixed disk via the first rotary joint and the other end sealed to the connecting port via the second rotary joint. The cooling box stores a liquid heat-conducting medium and is connected to the sleeve via the first and second connecting pipes. The circulating pump is disposed on the second connecting pipe. The overall device has a good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of optical projection equipment, and more particularly to a fluorescent wheel device. Background Art

[0002] The laser projection display system may include a laser light source system, an optical machine lighting system, and a lens imaging system. The fluorescent wheel is one of the important components of the laser light source system: specifically, a fluorescent material is coated on a high-speed rotating device to form a fluorescent wheel structure. The high-speed rotation of the fluorescent wheel causes the excitation light to be incident on different positions of the fluorescent wheel at different times, generating one or more primary color fluorescence through the fluorescent material. Since the excitation light incident on the fluorescent wheel generates a certain amount of heat and accumulates on the fluorescent wheel, if the accumulated heat cannot be dissipated in time, it is easy to cause thermal saturation, thereby affecting the effectiveness of the fluorescent material on the fluorescent wheel. Although the existing laser light machine is equipped with a heat dissipation fan, the heat dissipation fan is aimed at regional heat dissipation inside the light machine, and cannot dissipate heat from the fluorescent wheel in a targeted manner. Therefore, the existing fluorescent wheel does not have a very good self-heating effect. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide a fluorescent wheel device with better heat dissipation effect.

[0004] To achieve this object, the present invention adopts the following technical solution: a fluorescent wheel device, comprising a device body, a driving motor, a connecting shaft, a fluorescent wheel, and a heat dissipation component;

[0005] A hollow cavity is provided in the fluorescent wheel, and a communication port communicating with the hollow cavity is provided on the fluorescent wheel;

[0006] The driving motor is fixed to the device body, and the output shaft of the driving motor is fixedly connected to one end of the connecting shaft;

[0007] The other end of the connecting shaft extends into the hollow cavity through the communicating port and is fixedly connected to the fluorescent wheel. A fixed disk is fixedly sleeved on the output shaft and rotates synchronously with the connecting shaft.

[0008] The heat dissipation assembly includes a sleeve, a first rotary joint, a second rotary joint, a first connecting pipe, a second connecting pipe, a cooling box and a circulating pump;

[0009] The sleeve is sleeved outside the connecting shaft, and one end is sealedly connected to the fixed disk through a first rotary joint, and the other end is sealedly connected to the fluorescent wheel at the communication port through a second rotary joint;

[0010] The cooling box stores a liquid heat-conducting medium, and the liquid inlet of the cooling box is connected to the sleeve through the first connecting pipe, and the liquid outlet of the cooling box is connected to the sleeve through the second connecting pipe;

[0011] The circulation pump is arranged on the second connecting pipe.

[0012] Furthermore, the fluorescent wheel includes a first wheel piece and a second wheel piece;

[0013] A first mounting flange is provided on one side of the first wheel sheet and is arranged around the circumference of the first wheel sheet, and the phosphor is coated on the other side thereof;

[0014] A first concave cavity is formed between the first mounting flange and the first wheel;

[0015] A second mounting flange is provided on one side of the second wheel and is distributed around the circumference of the second wheel and is sealed to the first mounting flange, and the communication port is provided on the other side.

[0016] A second concave cavity is formed between the second mounting flange and the second wheel;

[0017] The hollow cavity is formed between the first cavity and the second cavity.

[0018] Furthermore, a third mounting flange is provided on one end of the sleeve and is sealedly connected to the first rotary joint, and a fourth mounting flange is provided on the other end and is sealedly connected to the second rotary joint;

[0019] A fifth mounting flange is provided on the fluorescent wheel at the position of the communication port and is sealed to the second rotary joint.

[0020] Further, it also includes an extension tube;

[0021] One end of the extension tube is connected to the second communicating tube, and the other end extends into the hollow cavity through the communicating port.

[0022] Furthermore, a sixth mounting flange is provided on a side wall of the hollow cavity facing the communicating port;

[0023] The sixth mounting flange is provided with a mounting hole for the other end of the connecting shaft to be fixedly embedded.

[0024] Furthermore, the cooling box includes a box body and a cooler;

[0025] The cooler is installed on the box and is used to cool the liquid heat-conducting medium.

[0026] Furthermore, the cooler is specifically a heat exchange copper tube;

[0027] The heat exchange copper tube is fixed on the inner wall of the box body.

[0028] Furthermore, the liquid heat-conducting medium is specifically oil.

[0029] The beneficial effects of the present invention are as follows: the present invention arranges a hollow cavity in the fluorescent wheel, and opens a connecting port connected to the hollow cavity on the fluorescent wheel; a driving motor fixed on the device body drives the fluorescent wheel to rotate through a connecting shaft; a pipe sleeve is then sleeved on the connecting shaft and one end of the pipe sleeve is connected to the fixed disk through a first rotary joint, and the other end is connected to the connecting port through a second rotary joint, so that the pipe sleeve can be sealed and connected to the hollow cavity without affecting the rotation of the connecting shaft; and a cooling box that stores liquid heat-conducting medium circulates the liquid heat-conducting medium to the hollow cavity through a circulating pump, a water inlet pipe and a water outlet pipe, so that the heat on the fluorescent wheel is quickly replaced by the liquid heat-conducting medium, thereby achieving a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a fluorescent wheel device provided in a specific embodiment of the present invention.

[0031] Figure 2 yes Figure 1 A magnified schematic diagram of position A in FIG.

[0032] Figure 3 It is a structural schematic diagram of the first wheel piece of a fluorescent wheel device provided in a specific embodiment of the present invention.

[0033] Figure 4 It is a structural schematic diagram of the second wheel piece of a fluorescent wheel device provided in a specific embodiment of the present invention.

[0034] Figure 5 This is another structural schematic diagram of the first wheel piece of a fluorescent wheel device provided in a specific embodiment of the present invention.

[0035] Figure 6 This is another structural schematic diagram of the second wheel piece of a fluorescent wheel device provided in a specific embodiment of the present invention.

[0036] In the figure: 1. Device body; 2. Drive motor; 3. Connecting shaft; 31. Fixed disk; 4. Fluorescent wheel; 40. Hollow cavity; 41. First wheel piece; 410. Connecting port; 411. First mounting flange; 42. Second wheel piece; 420. Sixth mounting flange; 421. Second mounting flange; 422. Reinforcing rib; 423. Fifth mounting flange; 5. Sleeve; 51. Third mounting flange; 52. Fourth mounting flange; 61. First rotary joint; 62. Second rotary joint; 71. First connecting pipe; 72. Second connecting pipe; 73. Extension pipe; 8. Box body; 9. Circulation pump. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] like Figures 1 to 2 As shown, a fluorescent wheel 4 device includes a device body 1, a driving motor 2, a connecting shaft 3, a fluorescent wheel 4, and a heat dissipation component; a hollow cavity 40 is provided in the fluorescent wheel 4, and a connecting port 410 connected to the hollow cavity 40 is provided on the fluorescent wheel 4; the driving motor 2 is fixed on the device body 1, and the output shaft of the driving motor 2 is fixedly connected to one end of the connecting shaft 3; the other end of the connecting shaft 3 extends into the hollow cavity 40 through the connecting port 410 and is fixedly connected to the fluorescent wheel 4, and a fixed disk 31 is fixedly sleeved on the output shaft and rotates synchronously with the connecting shaft 3; the fixed disk can be fixed by welding to ensure better sealing connectivity. The heat dissipation assembly includes a sleeve 5, a first rotary joint 61, a second rotary joint 62, a first connecting pipe 71, a second connecting pipe 72, a cooling box and a circulation pump 9; the sleeve 5 is sleeved on the outside of the connecting shaft 3, and one end is sealedly connected to the fixed disk 31 through the first rotary joint 61, and the other end is sealedly connected to the fluorescent wheel 4 at the connecting port 410 through the second rotary joint 62; liquid heat-conducting medium is stored in the cooling box, and the liquid inlet end of the cooling box is connected to the sleeve 5 through the first connecting pipe 71, and the liquid outlet end is connected to the sleeve 5 through the second connecting pipe 72; the circulation pump 9 is arranged on the second connecting pipe 72.

[0039] Specifically, the device body 1 can be as follows Figure 1 The bracket rod structure shown is used to fix the drive motor 2. Those skilled in the art can make appropriate modifications based on this structure without any specific limitation. In this embodiment, a fixed plate 31 is fixed on the connecting shaft 3, which is conveniently connected to one end of the sleeve 5 through a first rotary joint 61 for sealing and rotation. The other end of the second rotary joint 62 can be connected to the fluorescent wheel 4 for sealing and rotation. In this way, when the drive motor 2 drives the connecting shaft 3 to rotate, the corresponding sleeve 5 can be unaffected and remain connected to the hollow cavity 40. Cooling process: The circulating pump 9 continuously circulates liquid heat-conducting medium through the sleeve 5 into the hollow cavity 40. After receiving heat in the hollow cavity 40, the heat-conducting medium flows back through the sleeve 5 into the cooling box. After cooling, it is transported to the hollow cavity 40. This cycle realizes uninterrupted heat dissipation of the fluorescent wheel 4, greatly improving the heat dissipation effect of the fluorescent wheel 4 and ensuring the effectiveness of the fluorescent materials such as the fluorescent powder on the fluorescent wheel 4.

[0040] In general, the present invention sets a hollow cavity 40 in the fluorescent wheel 4, and opens a connecting port 410 on the fluorescent wheel 4 to connect with the hollow cavity 40; the driving motor 2 fixed on the device body 1 drives the fluorescent wheel 4 to rotate through the connecting shaft 3; then a pipe sleeve is sleeved on the connecting shaft 3 and one end of the pipe sleeve is connected to the fixed disk 31 through the first rotary joint 61, and the other end is connected to the connecting port 410 through the second rotary joint 62, so that the pipe sleeve can be sealed and connected with the hollow cavity 40 without affecting the rotation of the connecting shaft 3; then, a cooling box storing liquid heat-conducting medium is used to circulate the liquid heat-conducting medium to the hollow cavity 40 through the circulating pump 9, the water inlet pipe and the water outlet pipe, so that the heat on the fluorescent wheel 4 is quickly replaced by the liquid heat-conducting medium, thereby achieving a better heat dissipation effect.

[0041] Furthermore, if Figure 3 and Figure 4 As shown, the fluorescent wheel 4 includes a first wheel plate 41 and a second wheel plate 42; a first mounting flange 411 arranged around the circumference of the first wheel plate 41 is provided on one side of the first wheel plate 41, and fluorescent powder is coated on the other side; a first concave cavity is formed between the first mounting flange 411 and the first wheel plate 41; a second mounting flange 421 distributed around the circumference of the second wheel plate 42 and sealed to the first mounting flange 411 is provided on one side of the second wheel plate 42, and a connecting port 410 is opened on the other side; a second concave cavity is formed between the second mounting flange 421 and the second wheel plate 42; a hollow cavity 40 is formed between the first concave cavity and the second concave cavity.

[0042] Specifically, the first wheel 41 and the first mounting flange 411 can be integrally formed, and the second wheel 42 and the second mounting flange 421 can also be integrally formed, which makes processing more convenient; wherein the first wheel 41 and the second wheel 42 can be made of the same material as the existing fluorescent wheel 4. The contact and matching portion of the first mounting flange 411 and the second mounting flange 421 can be set to a stepped structure, so that the first mounting flange 411 and the second mounting flange 421 can be embedded with each other, making installation more convenient. During installation, after the first mounting flange 411 and the second mounting flange 421 are aligned and embedded, they can be sealed and fixed with sealing glue. In this embodiment, Figure 3 as well as Figure 4 The other side of the first wheel 41 is coated with fluorescent materials such as fluorescent powder, and no light-transmitting area is required; the corresponding first mounting flange 411 can be directly distributed around the circumferential edge of the first wheel 41, and similarly, the second mounting flange 421 of the second wheel 42 is set corresponding to the first mounting flange 411; and when a part of the light-transmitting area is provided on the first wheel 41, Figure 5As shown in FIG6 , when designing the first mounting flange 411 , the light-transmitting area should be avoided, and the second mounting flange 421 on the corresponding second wheel 42 is arranged corresponding to the first mounting flange 411 .

[0043] Furthermore, a third mounting flange 51 is provided on one end of the sleeve, which is sealedly connected to the first rotary joint 61, and a fourth mounting flange 52 is provided on the other end, which is sealedly connected to the second rotary joint 62. A fifth mounting flange 423 is provided on the fluorescent wheel 4 at the communication opening 410, which is sealedly connected to the second rotary joint 62. In this embodiment, the first mounting flange 411 and the second mounting flange 421 are provided at each end of the sleeve, respectively, which facilitates secure connection with the first and second rotary joints 61, 62.

[0044] Furthermore, an extension pipe 73 is included; one end of the extension pipe 73 is connected to the second connecting pipe 72, and the other end extends into the hollow cavity 40 through the connecting port 410. Figure 2 As shown, an extension pipe 73 is added in the sleeve 5, so that the liquid heat exchange medium input through the second connecting pipe can be better introduced into the hollow cavity 40, thereby achieving a better heat exchange effect.

[0045] Furthermore, a sixth mounting flange 420 is provided on one side wall of the hollow cavity 40 facing the communication port 410; a mounting hole for fixing and embedding the other end of the connecting shaft 3 is provided in the sixth mounting flange 420. Figure 1 as well as Figure 2 As shown, the other end of the connecting shaft 3 can be interference fit with the mounting hole, thereby realizing a fixed connection between the connecting shaft 3 and the sixth mounting flange 420, and then a connecting key is correspondingly set on the connecting shaft 3, and a keyway corresponding thereto is opened in the mounting hole.

[0046] Furthermore, the cooling box includes a box body 8 and a cooler (not shown in the figure); the cooler is installed on the box body 8 and is used to cool the liquid heat-conducting medium. The cooler can be a heat-exchange copper tube, and the heat-exchange copper tube is set on the inner wall of the box body 8. This can accelerate the heat dissipation and cooling of the liquid heat-exchange medium in the reflux box body 8, and ensure that the liquid heat-exchange medium re-input into the hollow cavity 40 can be at a lower temperature, thereby ensuring the heat dissipation effect of the fluorescent wheel 4. Of course, the heat exchanger can also be a material with good heat dissipation performance such as graphene, which is coated or affixed to the inner wall of the box body 8. Those skilled in the art can make appropriate changes based on this, and there is no specific limitation. In addition, the liquid heat-conducting medium can specifically be a liquid heat-conducting medium with good heat conductivity such as oil and water.

[0047] Furthermore, a plurality of reinforcing ribs 422 are provided on the side wall of the hollow cavity 40; the provision of the reinforcing ribs 422 can enhance the overall structural strength of the fluorescent wheel 4, and can stir the liquid heat exchange medium in the hollow cavity 40, so that the heat exchange medium can better receive and transfer heat; Figure 1 As shown, taking the fluorescent wheel 4 including the first wheel piece 41 and the second wheel piece 42 as an example, the reinforcing rib 422 structure can be provided on the first wheel piece 41, or the reinforcing rib 422 can be provided on both the first wheel piece 41 and the second wheel piece 42. Those skilled in the art can make appropriate modifications based on this, and the specific embodiments are not limited thereto.

[0048] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A fluorescent wheel device, characterized in that: and a tube connecting the discharging opening of the second end of the driving motor and the discharge port of the second end of the driving motor; the tube connecting the discharging opening is connected with the tube connecting the discharging opening of the second end of the driving motor to the discharge port of the second end of the driving motor; the tube connecting the discharging opening is connected with the tube connecting the discharging opening of the second end of the driving motor to the discharge port of the second end of the driving motor; the tube connecting the discharging opening is connected with the tube connecting the discharging opening of the second end of the driving motor The fluorescent wheel includes a first wheel piece and a second wheel piece; a first mounting flange arranged around the circumference of the first wheel piece is provided on one side of the first wheel piece, and fluorescent powder is coated on the other side; a first concave cavity is formed between the first mounting flange and the first wheel piece; a second mounting flange distributed around the circumference of the second wheel piece and sealed to the first mounting flange is provided on one side of the second wheel piece, and the communicating port is opened on the other side; a second concave cavity is formed between the second mounting flange and the second wheel piece; and the hollow cavity is formed between the first concave cavity and the second concave cavity. A third mounting flange is provided on one end of the sleeve and is sealed with the first rotary joint, and a fourth mounting flange is provided on the other end and is sealed with the second rotary joint; a fifth mounting flange is provided on the fluorescent wheel and is sealed with the second rotary joint at the position of the connecting port.

2. A fluorescent wheel device according to claim 1, characterized in that: It also includes an extension pipe; one end of the extension pipe is connected to the second connecting pipe, and the other end extends into the hollow cavity through the connecting port.

3. The fluorescent wheel device according to claim 1, wherein: A sixth mounting flange is provided on a side wall of the hollow cavity facing the communicating port; a mounting hole for fixing and embedding the other end of the connecting shaft is provided in the sixth mounting flange.

4. The fluorescent wheel device according to claim 1, wherein: The cooling box includes a box body and a cooler; the cooler is installed on the box body and is used to cool the liquid heat-conducting medium.

5. A fluorescent wheel device according to claim 4, characterized in that: The cooler is specifically a heat exchange copper tube; the heat exchange copper tube is fixed on the inner wall of the box body.

6. The fluorescent wheel device according to claim 1, wherein: The liquid heat-conducting medium is specifically oil.

7. The fluorescent wheel device according to claim 1, wherein: A plurality of reinforcing ribs are provided on the side wall of the hollow cavity.

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