CN106827509B - Light source assembly and 3D printer - Google Patents
Light source assembly and 3D printer Download PDFInfo
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- CN106827509B CN106827509B CN201710059535.XA CN201710059535A CN106827509B CN 106827509 B CN106827509 B CN 106827509B CN 201710059535 A CN201710059535 A CN 201710059535A CN 106827509 B CN106827509 B CN 106827509B
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- 239000012530 fluid Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 230000017525 heat dissipation Effects 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 30
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 241000270295 Serpentes Species 0.000 claims description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 15
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a light source assembly and a 3D printer, and relates to the field of light source assemblies. The light source assembly comprises a light source substrate, a bottom plate and a light reflecting assembly. The light source substrate is connected with the bottom plate, the reflecting component comprises a plurality of light-transmitting pipes, the light-transmitting pipes are connected and connected with the light source substrate, and fluid channels are arranged between the pipe walls of the light-transmitting pipes and the bottom plate for heat dissipation fluid to pass through. The fluid channel is formed by the tube wall and the bottom plate of the light pipe, or the reflecting component is also provided with a radiating tube which is used as the fluid channel. The light source component provided by the invention has the heat dissipation and cooling functions, and meanwhile, the whole module volume can be reduced. The invention provides a 3D printer which adopts the light source component, has small volume, has the heat dissipation and cooling functions and has long service life.
Description
Technical Field
The invention relates to the field of light source assemblies, in particular to a light source assembly and a 3D printer.
Background
SLA is the earliest practical rapid prototyping technology, which uses liquid photosensitive resin raw materials. Firstly, designing a three-dimensional solid model through CAD, slicing the model by utilizing a discrete program, designing a scanning path or developing an image required by exposure, and accurately controlling the movement of a laser scanner (or LCD/DLP through image display exposure) and a lifting platform by the generated data; the light beam irradiates the surface of the liquid photosensitive resin according to a designed scanning path through a scanner controlled by a numerical control device, so that a layer of resin in a specific area of the surface is solidified, and when the processing of the layer is finished, a section of the part is generated; then the lifting table descends for a certain distance, another layer of liquid resin is covered on the solidified layer, a second layer of scanning is carried out, the second solidified layer is firmly bonded on the previous solidified layer, and the three-dimensional workpiece prototype is formed by overlapping the solidified layer by layer.
LCD projection technology is often used in SLA to realize rapid high-precision printing and forming, and a light source assembly with high uniformity and high parallelism is required. The existing light source components of the type are large in size and large in heating value, and the LCD is not resistant to high temperature, so that the service lives of the LCD and the LED are affected by the high temperature.
Therefore, designing a light source assembly which can achieve the effect of light condensation and light homogenization, has the function of heat dissipation and cooling, and can reduce the volume of the whole module is an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a light source assembly which has the heat dissipation and cooling functions and can reduce the whole module volume.
The invention further aims to provide a 3D printer which adopts the light source assembly, is small in size, has a heat dissipation and cooling function and is long in service life.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a light source component, which comprises a light source substrate, a bottom plate and a reflecting component; the light source substrate is connected with the bottom plate, the light reflecting component comprises a plurality of light-transmitting pipes, the light-transmitting pipes are connected and connected with the light source substrate, and a fluid channel is arranged between the pipe walls of the light-transmitting pipes and the bottom plate for heat dissipation fluid to pass through.
Further, the light reflecting assembly further comprises a frame, the light passing pipes comprise a first pipe opening and a second pipe opening, the first pipe openings are connected and connected with the frame, and the bottom plate is connected with the second pipe openings and connected with the frame; the frame, the tube walls of the light pipes and the bottom plate form the fluid channel; the frame is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively communicated with the fluid channel.
Further, the light reflecting component further comprises a plurality of drainage baffles, and the plurality of drainage baffles are respectively arranged between two adjacent light-passing pipes so as to form the snake-shaped fluid channel.
Further, the bottom plate is provided with a plurality of through holes, and a plurality of second nozzles penetrate through the through holes and are connected with the light source substrate.
Further, the light reflecting component further comprises a radiating pipe, and the radiating pipe is the fluid channel.
Further, the light reflecting assembly further comprises a frame, a plurality of light passing pipes comprise first pipe orifices and second pipe orifices, the first pipe orifices are connected and connected with the frame, the radiating pipes comprise liquid inlets and liquid outlets, and the liquid inlets and the liquid outlets penetrate through the frame.
Further, the light source substrate is connected with the bottom plate, the bottom plate is connected with the radiating pipe, the radiating pipe and the bottom plate are both in a snake shape, and a plurality of second pipe orifices penetrate through the bottom plate and are connected with the substrate.
Further, the bottom plate is a heat dissipation bottom plate made of heat conducting metal or heat conducting plastic.
Further, the light source assembly further comprises a heat dissipation top plate, and the heat dissipation top plate is connected with one side, far away from the bottom plate, of the light reflection assembly.
The invention provides a 3D printer which comprises a printer body, a screen, a radiator and a light source assembly. The light source component comprises a light source substrate, a bottom plate and a reflecting component; the light source substrate is connected with the bottom plate, the light reflecting component comprises a plurality of light-transmitting pipes, the light-transmitting pipes are connected and connected with the light source substrate, and a fluid channel is arranged between the pipe walls of the light-transmitting pipes and the bottom plate for heat dissipation fluid to pass through. The screen, the radiator and the light source assembly are all arranged in the printer body, the radiator is connected with the fluid channel, and the screen is arranged on one side, far away from the light source substrate, of the light source assembly.
The embodiment of the invention has the beneficial effects that:
the light source component provided by the invention is connected with the light source substrate by adopting the light-transmitting pipes, the gaps among the light-transmitting pipes are provided with the fluid channels for the heat dissipation fluid to pass through, the heat is taken away by the heat conduction effect between the fluid and the reflecting component to achieve the cooling function, the light-transmitting pipe space is effectively utilized, and the volume of the whole light source component module is reduced.
According to the 3D printer, due to the adoption of the light source assembly provided by the embodiment, the arrangement is compact, the whole volume is small, the circulation of fluid in the light source assembly is ensured through the radiator, the heat dissipation and cooling effects are good, and the service life is long.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate a certain embodiment of the present invention and therefore should not be considered as limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first view angle of a 3D printer according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second view angle of the 3D printer according to the first embodiment of the present invention.
Fig. 3 is an exploded view of a light source module according to a first embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a light source assembly according to a first embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a view angle of a reflector of a light source module according to a first embodiment of the present invention.
Fig. 6 is an exploded view of a light source module according to a second embodiment of the present invention.
Fig. 7 is a schematic cross-sectional view of a light source assembly according to a second embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a view angle of a reflector of a light source module according to a second embodiment of the present invention.
Icon: 100-a light source assembly; 110-a light source substrate; 112-LED lamp; 114-a first threaded hole; 120-a bottom plate; 122-through holes; 124-a first positioning post; 126-a second threaded hole; 130-a light reflecting component; 132-light pipe; 1321-first nozzle; 1323-a second nozzle; 134-fluid passage; 136-a frame; 1361-liquid inlet; 1363-outlet; 138-drainage baffles; 139-a second positioning post; a 200-3D printer; 210-a printer body; 220-LCD screen; 230-a heat sink; 300-a light source assembly; 310-a light source substrate; 320-a bottom plate; 330-a light reflecting component; 332-light pipe; 3321—a first nozzle; 3323—a second nozzle; 334-radiating pipes; 3341-liquid inlet; 3343—a liquid outlet; 336-a frame; 3361-spacing holes; 340-heat dissipating top plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "inner", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, the term "vertical" and the like do not mean that the component is required to be absolutely suspended, but may be slightly inclined.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless specified and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, and features of the following examples may be combined with each other without conflict.
First embodiment
The present embodiment provides a 3D printer 200, and the 3D printer 200 includes a printer body 210, and an LCD screen 220, a heat sink 230, a light source assembly 100, etc. disposed within the printer body 210. Due to the adoption of the light source assembly 100, the 3D printer 200 is compact in internal structure arrangement, small in overall size, and long in service life, the heat generated by the light source substrate 110 is taken away through the heat radiator 230 to ensure fluid circulation in the light source assembly 100. It should be noted that, in other preferred embodiments, the light source assembly 100 provided in the present embodiment can also be applied to other scenes, such as machine vision, etc.
Fig. 1 is a schematic structural diagram of a first view angle of a 3D printer 200 according to the present embodiment. Fig. 2 is a schematic structural diagram of a second view angle of the 3D printer 200 according to the present embodiment. Referring to fig. 1 and 2 in combination, the 3D printer 200 provided in the present embodiment includes a printer body 210, an LCD screen 220, a heat sink 230, and a light source assembly 100.
The LCD screen 220, the heat sink 230 and the light source assembly 100 are all disposed in the printer body 210, the heat sink 230 is connected with the light source assembly 100, and the LCD screen 220 is disposed on a side of the light source assembly 100 away from the light source substrate 110.
Fig. 3 is an exploded view of the light source assembly 100 according to the present embodiment. Referring to fig. 3, the light source assembly 100 provided in the present embodiment includes a light source substrate 110, a bottom plate 120 and a light reflecting assembly 130. The light source substrate 110 is connected to the base plate 120, and the base plate 120 is connected to the light reflecting member 130.
Fig. 4 is a schematic cross-sectional view of the light source assembly 100 according to the present embodiment. Fig. 5 is a schematic structural diagram of a view angle of the reflector 130 of the light source assembly 100 according to the first embodiment of the present invention. Referring to fig. 4 and fig. 5 in combination, the light reflecting component 130 is used for focusing and homogenizing light, and in this embodiment, the light reflecting component 130 is also used for forming a fluid channel 134 for passing heat dissipation fluid.
The light reflecting assembly 130 includes a plurality of light pipes 132, a frame 136, a plurality of drainage baffles 138, and a second positioning post 139. One side of the light reflecting member 130 is connected to the base plate 120. The light pipes 132 are connected to the frame 136, and fluid passages 134 are formed between the walls of the light pipes 132, the bottom plate 120 and the frame 136 for heat dissipation fluid to pass through. A plurality of flow directing baffles 138 are disposed between the plurality of light pipes 132 for restricting the direction of fluid flow. The positioning posts are disposed between the light pipes 132 for connecting with the base plate 120.
Preferably, in the present embodiment, the light-transmitting tubes 132 are square tapered light-transmitting tubes 132, and the light-transmitting tubes 132 are arranged in an array. The plurality of light pipes 132 each include a first nozzle 1321 and a second nozzle 1323, the second nozzle 1323 having an inner diameter smaller than the inner diameter of the first nozzle 1321. The plurality of first nozzles 1321 are disposed in the same plane, and adjacent two of the first nozzles 1321 are connected to each other and inscribed in the frame 136. A plurality of second nozzles 1323 pass through the bottom plate 120 and are connected to the light source substrate 110. The base plate 120 is connected to the frame 136.
It can be understood that the walls of the light pipes 132, the bottom plate 120 and the frame 136 form a space with good air tightness, and in this embodiment, the space with good air tightness is used as the fluid channel 134 for heat dissipation fluid to pass through.
Preferably, in this embodiment, the frame 136 is provided with a liquid inlet 1361 and a liquid outlet 1363, and the liquid inlet 1361 and the liquid outlet 1363 are respectively communicated with the fluid channel 134. In this embodiment, the liquid inlet 1361 and the liquid outlet 1363 are respectively connected to the radiator 230, that is, the radiator 230 is in communication with the fluid passage 134 to circulate and provide heat dissipation fluid to the fluid passage 134.
It should be noted that, in other preferred embodiments, the frame 136 may be omitted, and only the light-passing tubes 132 may be connected through the bottom plate 120 and connected to the light source substrate 110, so that the fluid channels 134 are formed between the tube walls of the light-passing tubes 132 and the bottom plate 120.
Also, in other preferred embodiments, the morphology of the light pipe 132 may be varied as long as the fluid channel 134 is formed, and is not limited to the square cone shape light pipe 132, and the arrangement relationship between the plurality of light pipes is not limited to the array arrangement.
A plurality of drainage baffles 138 are coupled to the plurality of light pipes 132 to form a serpentine-shaped fluid channel 134 to restrict the direction of fluid flow.
Preferably, in the present embodiment, the plurality of drainage baffles 138 are disposed in parallel, and the plurality of drainage baffles 138 are respectively connected to the walls of the adjacent two light-passing pipes 132, or the drainage baffles 138 are connected to the walls of the adjacent light-passing pipes 132 and the side walls of the frame 136 to form a plurality of rows of channels, and openings are disposed between the adjacent two channels to communicate the plurality of rows of channels to form the snake-shaped fluid channels 134.
In this embodiment, the light reflecting component 130 is made of aluminum or heat conductive plastic. It can be appreciated that when the light source assembly 100 provided in the present embodiment is used, the light reflecting assembly 130 has a heat conducting effect, and can assist in carrying away the heat generated by the light source substrate 110, thereby achieving a cooling effect.
With continued reference to fig. 3, the bottom plate 120 is used to connect the light reflecting component 130 and the light source substrate 110, and in this embodiment, the bottom plate 120 is used to seal the light reflecting component 130 to form the fluid channel 134.
Preferably, in the present embodiment, the bottom plate 120 is a heat dissipation bottom plate 120, which has a heat conducting function, and can assist in carrying away heat generated by the light source substrate 110, so as to achieve a cooling effect. The material of the heat dissipation base plate 120 may be a heat dissipation base plate 120 made of a heat conductive metal or a heat conductive plastic. Preferably, in this embodiment, the bottom plate 120 is a heat dissipation bottom plate 120 made of red copper or aluminum.
A plurality of through holes 122, a plurality of first positioning posts 124 and a plurality of second threaded holes 126 are provided on the base plate 120 at intervals. A plurality of first positioning posts 124 and a plurality of second threaded holes 126 are disposed in spaced relation between the plurality of through holes 122.
The plurality of through holes 122 are used for the light reflecting component 130 to pass through so as to be connected with the light source substrate 110. Preferably, in the present embodiment, a plurality of through holes 122 are arranged in an array. It should be noted that the shape and size of the plurality of through holes 122 may be adaptively changed according to the structures of the light reflecting component 130 and the light source substrate 110.
The first positioning columns 124 extend toward the light reflecting component 130, threads (not shown) are disposed on the first positioning columns 124, and the first positioning columns 124 are used for being matched with the light source substrate 110 to connect the bottom plate 120 and the light source substrate 110.
The second threaded holes 126 cooperate with the second positioning posts 139 to connect the light reflecting component 130 with the bottom plate 120.
It will be appreciated that in other preferred embodiments, the manner in which the base plate 120 and the retroreflective elements 130 are attached may vary, such as by welding or adhesive bonding.
The light source substrate 110 is used to provide a light source to the 3D printer 200 system. In this embodiment, the light source substrate 110 is an LED substrate, a plurality of LED lamps 112 are arranged on the LED substrate in an array, a plurality of first screw holes 114 are further arranged on the LED substrate, and the plurality of first screw holes 114 are used for being matched with the first positioning columns 124 to fix the light source substrate 110 and the bottom plate 120.
It will be appreciated that in other preferred embodiments, the connection between the base plate 120 and the light source substrate 110 may be varied, such as welding or bonding.
When the light source assembly 100 provided in this embodiment is used, the heat generated by the light source substrate 110 is taken away by the flow of the fluid through the fluid channels 134 formed among the frame 136, the walls of the light pipes 132 and the bottom plate 120, so as to achieve the cooling function. In addition, the heat conduction of the light reflecting component 130 and the bottom plate 120 can assist in taking away the heat generated by the light source substrate 110 to achieve the cooling function, and the light source component 100 provided by the embodiment fully utilizes the space, so that the volume of the whole module of the light source component 100 is reduced.
Second embodiment
Fig. 6 is an exploded view of the light source assembly 300 according to the present embodiment. Referring to fig. 6, the light source assembly 300 provided in this embodiment includes a light source substrate 310, a bottom plate 320, a heat dissipation top plate 340 and a light reflecting assembly 330. The light source substrate 310 is connected with the bottom plate 320, the bottom plate 320 is connected with one side of the light reflecting component 330, and the heat dissipation top plate 340 is connected with one side of the light reflecting component 330 away from the bottom plate 320.
Fig. 7 is a schematic cross-sectional view of a light source assembly 300 according to the present embodiment. Fig. 8 is a schematic structural diagram of a view angle of the reflector 330 of the light source assembly 300 according to an embodiment. Referring to fig. 7 and 8 in combination, in the preferred embodiment, the reflector 330 includes a plurality of light pipes 332, a frame 336 and a heat dissipation pipe 334. A plurality of light pipes 332 are connected to the frame 336 with flow spaces between the walls of the plurality of light pipes 332. The radiating pipe 334 is disposed in the flow space, and in the present embodiment, the radiating pipe 334 is a fluid channel 134 for passing the radiating fluid. The frame 336 serves to fix the radiating pipe 334.
Preferably, in the present embodiment, the light-transmitting tubes 332 are square tapered light-transmitting tubes 332, and the light-transmitting tubes 332 are arranged in an array. The light pipes 332 each include a first nozzle 3321 and a second nozzle 3323, the first nozzles 3321 are disposed on the same plane, and two adjacent first nozzles 3321 are connected to each other. The plurality of first nozzles 3321 are for connection with the heat sink top 340, and the plurality of second nozzles 3323 are for connection with the light source substrate 310. It will be appreciated that there is a flow space between two adjacent light pipes 332, which are in communication with each other for receiving the heat dissipating pipe 334.
Preferably, in an embodiment, the first nozzles 3321 of the plurality of light pipes 332 arranged in an array are connected to form a rectangular structure, and the edges of the rectangular structure are connected to the frame 336.
The frame 336 is provided with a plurality of limiting holes 3361 to fix the radiating pipe 334.
It should be noted that, in other preferred embodiments, the frame 336 is not provided, but is merely connected by the light pipes 332, and passes through the bottom plate 320 to connect with the light source substrate 310, and a flow space is formed between the walls of the light pipes 332 to accommodate and fix the heat dissipating pipes 334.
Also, in other preferred embodiments, the morphology of the light pipe 332 may be varied as long as the fluid channel 134 is formed, and is not limited to the square cone shape light pipe 332, and the arrangement relationship between the plurality of light pipes is not limited to the array arrangement.
Preferably, in the present embodiment, the heat dissipating tube 334 has a serpentine shape, and the heat dissipating tube 334 is matched with the plurality of limiting holes 3361 so as to be connected to the light reflecting component 330. The heat dissipation tube 334 includes a liquid inlet 3341 and a liquid outlet 3343, and the liquid inlet 3341 and the liquid outlet 3343 penetrate through the frame 336 for heat dissipation fluid to pass through.
It is understood that in other preferred embodiments, the morphology of the tube 334 may vary as long as the fluid is allowed to pass.
With continued reference to fig. 6, in the preferred embodiment, the bottom plate 320 is a heat dissipation bottom plate 320, the bottom plate 320 has a serpentine shape, the bottom plate 320 is connected with the heat dissipation tube 334, and the bottom plate 320 is connected with the light reflecting component 330. A plurality of second nozzles 3323 pass through the bottom plate 320 and are connected to the base plate.
Of course, the shape and structure of the bottom plate 320 may be adaptively changed according to the structural change of the radiating pipe 334, and the material of the bottom plate 320 may be variously changed, for example, the bottom plate 320 is a radiating bottom plate 320 made of red copper, aluminum or heat conductive plastic, etc.
Preferably, in this embodiment, the heat dissipation top plate 340 is a heat dissipation top plate 340 made of red copper, aluminum or heat conducting plastic, one side of the heat dissipation top plate 340 is connected with the plurality of first nozzles 3321, and the other side of the heat dissipation top plate 340 is used for being connected with the screen.
It can be appreciated that, in the light source assembly 300 provided in this embodiment, the plurality of second nozzles 3323 are connected to the bottom plate 320, the plurality of first nozzles 3321 are connected to the heat dissipation top plate 340, and the heat dissipation tubes 334 are disposed between the plurality of light passing tubes 332, and the heat dissipation tubes 334 are used for heat dissipation fluid passing through. When the light source assembly 300 provided in this embodiment is used, the heat generated by the light source substrate 310 is taken away by the flowing action of the fluid, so as to achieve the cooling function, and the heat generated by the light source substrate 310 can be taken away by the heat conduction action of the light reflecting assembly 330, the bottom plate 320 and the top plate, so as to achieve the cooling function, and the light source assembly 300 provided in this embodiment fully utilizes the existing space, so that the volume of the whole module of the light source assembly 300 is reduced.
The specific implementation manner of other parts not mentioned in this embodiment is the same as that of the first embodiment, and will not be repeated here.
In summary, the light source assembly 100 and the light source assembly 300 provided in the embodiments of the present invention have a heat dissipation and cooling function, and simultaneously can reduce the volume of the whole module. The 3D printer 200 provided by the embodiment of the invention adopts the light source assembly 100 or 300, has small volume, has the heat dissipation and cooling functions, and has long service life.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The light source assembly is characterized by comprising a light source substrate, a bottom plate and a light reflecting assembly; the light source substrate is connected with the bottom plate, the light reflecting component comprises a plurality of square conical light passing pipes, the light passing pipes are connected, the light passing pipes comprise a first pipe orifice and a second pipe orifice, the inner diameter of the second pipe orifice is smaller than that of the first pipe orifice, the first pipe orifices are arranged in the same plane and are connected with each other, the second pipe orifices penetrate through the bottom plate and are connected with the light source substrate, and a plurality of fluid channels with snake shapes are arranged between the pipe walls of the light passing pipes and the bottom plate and used for heat dissipation fluid to pass through.
2. The light source assembly of claim 1, wherein the reflector assembly further comprises a frame, a plurality of the first nozzles being coupled to the frame, the base plate being coupled to a plurality of the second nozzles and to the frame; the frame, the tube walls of the light pipes and the bottom plate form the fluid channel; the frame is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively communicated with the fluid channel.
3. The light source assembly of claim 2, wherein the light reflecting assembly further comprises a plurality of flow directing baffles disposed between adjacent ones of the light passing tubes, respectively, to form the serpentine-shaped fluid passages.
4. The light source module of claim 2, wherein the base plate is provided with a plurality of through holes, and a plurality of the second nozzles pass through the plurality of through holes and are connected to the light source substrate.
5. The light source assembly of claim 1, wherein the light reflecting assembly further comprises a heat dissipating tube, the heat dissipating tube being the fluid channel.
6. The light source assembly of claim 5, wherein the reflector assembly further comprises a frame, the plurality of first nozzles are connected to the frame, and the radiating pipe comprises a liquid inlet and a liquid outlet, both of which pass through the frame.
7. The light source assembly of claim 6, wherein the light source substrate is connected to the base plate, the base plate is connected to the radiating pipe, and both the radiating pipe and the base plate are serpentine.
8. A light source assembly as recited in any one of claims 1-7, wherein the base plate is a heat dissipating base plate made of a thermally conductive metal or a thermally conductive plastic.
9. The light source assembly of claim 8, further comprising a heat dissipating top plate coupled to a side of the light reflecting assembly remote from the bottom plate.
10. A 3D printer comprising a printer body, a screen, a heat sink, and a light source assembly according to any one of claims 1-9, wherein the screen, the heat sink, and the light source assembly are disposed within the printer body, the heat sink is connected to the fluid channel, and the screen is disposed on a side of the light source assembly remote from the light source substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059535.XA CN106827509B (en) | 2017-01-24 | 2017-01-24 | Light source assembly and 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059535.XA CN106827509B (en) | 2017-01-24 | 2017-01-24 | Light source assembly and 3D printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106827509A CN106827509A (en) | 2017-06-13 |
| CN106827509B true CN106827509B (en) | 2023-12-15 |
Family
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Family Applications (1)
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| CN110831744B (en) * | 2017-07-10 | 2022-04-08 | 索尼半导体解决方案公司 | Optical head and molding apparatus |
| CN107263864A (en) * | 2017-07-26 | 2017-10-20 | 江苏时间环三维科技有限公司 | A kind of light source module based on LCD photocuring 3D printers |
| KR20190088116A (en) * | 2018-01-04 | 2019-07-26 | 주식회사신도리코 | 3D printer with cooling function |
| EP3524409A1 (en) * | 2018-02-09 | 2019-08-14 | CL Schutzrechtsverwaltungs GmbH | Apparatus for additively manufacturing three-dimensional objects |
| CN109732908A (en) * | 2019-01-22 | 2019-05-10 | 李世波 | Light source assembly and printer |
| US12023865B2 (en) * | 2022-08-11 | 2024-07-02 | NEXA3D Inc. | Light engines for vat polymerization 3D printers |
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