UVB ultraviolet fluorescent powder narrowing wavelength conversion device

Abstract

The utility model discloses a UVB ultraviolet fluorescent powder narrowing wavelength conversion device which comprises a liquid storage box, and the inner wall of the bottom end of the liquid storage box is fixedly connected with a protective shell. According to the UVB ultraviolet fluorescent powder narrowing wavelength conversion device disclosed by the utility model, by arranging the motor and the bearing piece, the excitation light source can irradiate different fluorescent layers according to actual requirements so as to generate different excited light; according to the device, the mode that each wavelength conversion assembly is produced and then bonded to the bearing piece after production is completed is adopted, the production period of the wavelength conversion assemblies can be obviously shortened, and it is guaranteed that all the wavelength conversion assemblies can obtain the optimal performance; and when a certain wavelength conversion assembly has a quality problem, only the corresponding wavelength conversion assembly needs to be replaced, so that the production cost is effectively reduced, the bearing part can be cooled by arranging the liquid storage box and the cooling fins, the light conversion efficiency of the device is guaranteed, and the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wavelength conversion devices, in particular to a UVB ultraviolet phosphor narrowing wavelength conversion device. Background Art

[0002] The main principle of wavelength conversion technology is that when the excitation light is irradiated on the wavelength conversion material such as phosphor, it is stimulated to produce a stimulated light with a wavelength different from the excitation light. This technology is widely used in the field of laser projection and laser lighting, and the wavelength conversion device is the key device to realize this technology.

[0003] The patent document with application number CN202222702728.1 discloses a wavelength conversion element and a light-emitting device, including a stacked fluorescent layer and a substrate, the substrate is arranged on a surface of the fluorescent layer, and the fluorescent layer can emit stimulated light under the excitation of the excitation light; the fluorescent layer includes a spacer, the spacer is arranged in the fluorescent layer, and the thickness of the fluorescent layer is equal to the diameter of the spacer. Therefore, when the fluorescent layer is packaged and manufactured, the thickness of the fluorescent layer can be effectively controlled by the spacer, the thickness consistency of the fluorescent layer is improved, and the luminous efficiency of the wavelength conversion element is effectively improved.

[0004] While generating stimulated light, the wavelength conversion element will generate a large amount of heat. However, the wavelength conversion element in the above application only relies on the substrate for heat dissipation, resulting in that the heat generated by the stimulated light cannot be dissipated in time. As the use time increases, the wavelength conversion element is prone to problems such as aging and breakage, thereby reducing the light conversion efficiency and service life of the wavelength conversion element, and it is not convenient to generate different stimulated light according to actual conditions. In response to the above problems, we have launched a UVB ultraviolet phosphor narrowed wavelength conversion device. Utility Model Content

[0005] The utility model discloses a UVB ultraviolet phosphor narrowed wavelength conversion device, which aims to solve the problem that the heat dissipation of the wavelength conversion element depends solely on the substrate, resulting in the heat generated by the stimulated light not being able to be dissipated in time, and the wavelength conversion element is prone to aging and breaking as the use time increases, thereby reducing the light conversion efficiency and service life of the wavelength conversion element, and it is not convenient to produce different stimulated light according to different actual conditions.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A UVB ultraviolet phosphor narrowing wavelength conversion device, comprising a liquid storage box, a protective shell is fixedly connected to the inner wall of the bottom end of the liquid storage box, a motor is arranged in the protective shell, an output end of the motor is connected to a bearing member, the vertical section of the bearing member is T-shaped, a plurality of heat dissipation fins are fixedly connected to the side of the bearing member, a plurality of wavelength conversion components are arranged around the motor at the top of the bearing member, and further comprising:

[0008] Wavelength conversion component: the wavelength conversion component comprises a substrate fixedly connected to the top of the carrier, a fluorescent layer is fixedly connected to the top of the substrate, and the cross-sections of the substrate and the fluorescent layer are both fan-shaped;

[0009] Fluid replacement component: The fluid replacement component is arranged on the right inner wall of the fluid storage box, and the fluid replacement component is used to replace the coolant in the fluid storage box.

[0010] By setting up a motor and a carrier, the excitation light source can be irradiated onto different fluorescent layers to generate different stimulated light according to actual needs. The device adopts a method of producing each wavelength conversion component separately and bonding it to the carrier after production. This can not only significantly shorten the production cycle of the wavelength conversion component and ensure that each wavelength conversion component can obtain the best performance, but also when a wavelength conversion component has quality problems, only the corresponding wavelength conversion component needs to be replaced, thereby effectively reducing the production cost. By setting up a liquid storage box and heat dissipation fins, the carrier can be cooled, thereby ensuring the light conversion efficiency of the device and effectively extending the service life of the device.

[0011] In a preferred embodiment, a plurality of limit grooves are provided on the top of the carrier, the size of the limit grooves is consistent with the size of the wavelength conversion component, the carrier is made of aluminum, the fluorescent layer is sintered by fluorescent powder and glass powder, the substrate is made of ceramic material with a thermal conductivity higher than 80W / mK, and a reflective layer is arranged between the substrate and the fluorescent layer, and the reflective layer is a silver film or an aluminum film.

[0012] The material of the carrier is aluminum, which makes the carrier have good thermal conductivity. The fluorescent layer is sintered by fluorescent powder and glass powder, which makes the fluorescent layer have good heat resistance and thermal conductivity. The substrate adopts ceramic material with a thermal conductivity coefficient higher than 80W / mK, which makes the substrate have good thermal conductivity and heat resistance, and at the same time can enhance the tightness of the connection between the fluorescent layer and the substrate. By setting the limit groove, the wavelength conversion device can be positioned when the wavelength conversion component is installed. By setting the reflective layer, the waste of the converted light can be reduced. The reflective layer is a silver film or an aluminum film, which makes the reflective layer not only have a higher reflectivity, but also has good thermal conductivity, thereby further improving the heat dissipation efficiency of the device.

[0013] In a preferred embodiment, the fluid exchange component includes a slide groove opened on the right inner wall of the liquid storage box, the inner wall of the slide groove is slidably connected with a block, a liquid adding tube is provided on the right side of the liquid storage box above the block, and a liquid drain tube is provided on the right side of the liquid storage box below the block.

[0014] The coolant in the liquid storage box can be discharged by arranging a drain pipe, and the coolant can be added to the liquid storage box by arranging a liquid adding pipe, a blocking block and a slide groove, thereby completing the replacement of the coolant.

[0015] The utility model provides a UVB ultraviolet phosphor narrow wavelength conversion device through improvement, which has the following improvements and advantages compared with the prior art:

[0016] Firstly, the utility model can make the excitation light source shine on different fluorescent layers to generate different stimulated light according to actual needs by setting the motor and the carrier. The device produces each wavelength conversion component separately and then bonds it to the carrier after production. This can not only significantly shorten the production cycle of the wavelength conversion component and ensure that each wavelength conversion component can obtain the best performance, but also when a certain wavelength conversion component has quality problems, only the corresponding wavelength conversion component needs to be replaced, thereby effectively reducing the production cost. By setting the liquid storage box and the heat dissipation fins, the carrier can be cooled, thereby ensuring the light conversion efficiency of the device and effectively extending the service life of the device.

[0017] Second: In the utility model, the material of the carrier is aluminum, so that the carrier has good thermal conductivity, the fluorescent layer is formed by sintering fluorescent powder and glass powder, so that the fluorescent layer has good heat resistance and thermal conductivity, the substrate adopts a ceramic material with a thermal conductivity coefficient higher than 80W / mK, so that the substrate has good thermal conductivity and heat resistance, and at the same time can enhance the tightness of the connection between the fluorescent layer and the substrate, by setting a limit groove, the wavelength conversion device can be positioned when the wavelength conversion component is installed, and the waste of the converted light can be reduced by setting a reflective layer, and the reflective layer is a silver film or an aluminum film, so that the reflective layer not only has a higher reflectivity, but also has good thermal conductivity, thereby further improving the heat dissipation efficiency of the device.

[0018] Thirdly, the utility model can discharge the coolant in the liquid storage box by arranging a drain pipe, and can add coolant into the liquid storage box by arranging a liquid adding pipe, a blocking block and a slide groove, thereby completing the replacement of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model provides a schematic diagram of the overall structure of a UVB ultraviolet phosphor narrowing wavelength conversion device.

[0020] Figure 2This is a front view structural schematic diagram of a UVB ultraviolet phosphor narrow wavelength conversion device proposed by the utility model.

[0021] Figure 3 The utility model provides a schematic diagram of the structure of a wavelength conversion component of a UVB ultraviolet phosphor narrowing wavelength conversion device.

[0022] In the attached figure: 1. liquid storage box; 2. protective shell; 3. motor; 4. bearing member; 5. heat dissipation fins; 6. substrate; 7. fluorescent layer; 8. limit groove; 9. reflective layer; 10. slide groove; 11. blocking block; 12. liquid adding pipe; 13. liquid drain pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The utility model discloses a UVB ultraviolet phosphor narrowed wavelength conversion device which is mainly used for wavelength conversion element heat dissipation which only relies on the substrate, resulting in that the heat generated by the stimulated light cannot be dissipated in time. As the use time increases, the wavelength conversion element is prone to problems such as aging and breakage, thereby reducing the light conversion efficiency and service life of the wavelength conversion element, and it is not convenient to generate different stimulated light scenes according to different actual conditions.

[0026] Reference Figure 1 , Figure 2 and Figure 3 A UVB ultraviolet phosphor narrowing wavelength conversion device comprises a liquid storage box 1, a protective shell 2 is fixedly connected to the inner wall of the bottom end of the liquid storage box 1, a motor 3 is arranged in the protective shell 2, a bearing member 4 is connected to the output end of the motor 3, the vertical section of the bearing member 4 is T-shaped, a plurality of heat dissipation fins 5 are fixedly connected to the side of the bearing member 4, a plurality of wavelength conversion components are arranged around the motor 3 at the top of the bearing member 4, and further comprises:

[0027] Wavelength conversion component: The wavelength conversion component includes a substrate 6 fixedly connected to the top of the carrier 4, a fluorescent layer 7 is fixedly connected to the top of the substrate 6, and the cross-sections of the substrate 6 and the fluorescent layer 7 are both fan-shaped;

[0028] Liquid replacement component: The liquid replacement component is arranged on the right inner wall of the liquid storage box 1, and the liquid replacement component is used to replace the coolant in the liquid storage box 1.

[0029] In this solution, different fluorescent layers 7 are arranged on different substrates 6. The starting motor 3 drives the carrier 4 to rotate so that the excitation light source can irradiate different fluorescent layers 7 according to actual needs, thereby generating different stimulated light. Since the production conditions of different fluorescent layers 7 are different, different ceramic materials are used according to different substrates 6 of the fluorescent layers 7, and each wavelength conversion component is produced separately and bonded to the carrier 4 after production. This can not only significantly shorten the production cycle of the wavelength conversion component, but also ensure that each wavelength conversion component is not restricted by other wavelength conversion components, thereby obtaining the best performance. In addition, when a certain wavelength conversion component has a quality problem, only the corresponding wavelength conversion component needs to be repaired. The wavelength conversion component can be replaced, thereby effectively reducing the production cost. When the excitation light source is irradiated on the fluorescent layer 7, the fluorescent layer 7 will be stimulated to produce an excited light with a wavelength different from that of the excitation light source. In this process, part of the energy of the laser light source will be converted into heat to increase the temperature of the fluorescent layer 7. The heat of the fluorescent layer 7 will be transferred to the substrate 6, and the substrate 6 will transfer the heat to the carrier 4. The coolant will cool the carrier 4, thereby effectively improving the heat dissipation performance of the device, ensuring the light conversion efficiency of the device, and extending the service life of the device. By connecting a number of heat dissipation fins 5 to the side of the carrier 4, the contact area between the carrier 4 and the coolant can be increased, thereby further improving the heat dissipation effect and efficiency of the device.

[0030] Among them, the material of the carrier 4 is aluminum, so that the carrier 4 has good thermal conductivity, the fluorescent layer 7 is sintered by fluorescent powder and glass powder, so that the fluorescent layer 7 has good heat resistance and thermal conductivity, so that the device can operate under a high-power excitation light source, and the substrate 6 adopts a ceramic material with a thermal conductivity coefficient higher than 80W / mK, so that the substrate 6 not only has good thermal conductivity, but also has good heat resistance, so that the substrate 6 is not easy to soften, deform, oxidize or have excessive thermal expansion at high temperature, and at the same time can enhance the tightness of the connection between the fluorescent layer 7 and the substrate 6.

[0031] Furthermore, since the stimulated light generated by the fluorescent layer 7 will be emitted in any direction, a reflective layer 9 is provided between the substrate 6 and the fluorescent layer 7 to reduce the waste of the stimulated light. The reflective layer 9 is a silver film or an aluminum film, which makes the reflective layer 9 not only have a high reflectivity, but also have good thermal conductivity, thereby further improving the heat dissipation efficiency.

[0032] Furthermore, a plurality of limit grooves 8 are provided at the top of the carrier 4, and the size of the limit grooves 8 is consistent with the size of the wavelength conversion component. The wavelength conversion component is fixed to the carrier 4 by bonding or welding. By providing the limit grooves 8, the wavelength conversion device can be positioned when the wavelength conversion component is installed.

[0033] Reference Figure 1 In a preferred embodiment, the liquid exchange component includes a slide groove 10 opened on the inner wall of the right side of the liquid storage box 1, and a block 11 is slidably connected to the inner wall of the slide groove 10. A liquid adding pipe 12 is arranged above the block 11 on the right side of the liquid storage box 1, and a liquid drain pipe 13 is arranged below the block 11 on the right side of the liquid storage box 1.

[0034] First, the coolant inside the liquid storage box 1 can be discharged through the drain pipe 13, and then the coolant can be added into the liquid storage box 1 through the filling pipe 12. As the amount of coolant added increases, the height of the coolant will continue to rise and push the blocking block 11 to move along the slide groove 10 toward the filling pipe 12 until it blocks the filling pipe 12, thereby completing the replacement of the coolant.

[0035] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited to them. The replacement can be a replacement of part of the structure, device, method steps, or a complete technical solution. Equivalent replacement or changes based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A UVB ultraviolet phosphor narrow wavelength conversion device, characterized in that: The invention comprises a liquid storage box (1), wherein a protective shell (2) is fixedly connected to the inner wall of the bottom end of the liquid storage box (1), a motor (3) is arranged in the protective shell (2), an output end of the motor (3) is connected to a bearing member (4), the vertical cross section of the bearing member (4) is T-shaped, a plurality of heat dissipation fins (5) are fixedly connected to the side of the bearing member (4), a plurality of wavelength conversion components are arranged around the motor (3) at the top end of the bearing member (4), and further comprises: Wavelength conversion component: the wavelength conversion component comprises a substrate (6) fixedly connected to the top of the carrier (4), a fluorescent layer (7) fixedly connected to the top of the substrate (6), and the cross-sections of the substrate (6) and the fluorescent layer (7) are both fan-shaped; Fluid replacement component: The fluid replacement component is arranged on the right inner wall of the fluid storage box (1), and is used to replace the coolant in the fluid storage box (1).

2. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: A plurality of limiting grooves (8) are provided at the top end of the carrier (4), and the size of the limiting grooves (8) is consistent with the size of the wavelength conversion component.

3. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: The material of the carrier (4) is aluminum.

4. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: The fluorescent layer (7) is formed by sintering fluorescent powder and glass powder, and the substrate (6) is made of a ceramic material with a thermal conductivity coefficient higher than 80 W / mK.

5. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: The wavelength conversion component and the carrier (4) are fixed by bonding or welding.

6. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: A reflective layer (9) is provided between the substrate (6) and the fluorescent layer (7), and the reflective layer (9) is a silver film or an aluminum film.

7. The UVB ultraviolet phosphor narrow wavelength conversion device according to claim 1, characterized in that: The liquid replacement assembly comprises a slide groove (10) provided on the right inner wall of the liquid storage box (1); a block (11) is slidably connected to the inner wall of the slide groove (10); a liquid adding pipe (12) is provided on the right side of the liquid storage box (1) above the block (11); and a liquid drain pipe (13) is provided on the right side of the liquid storage box (1) below the block (11).

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