Controllable micron array light source module applied to photocuring 3D printing

Abstract

The utility model is applicable to the technical field of 3D printing, and provides a controllable micron array light source module applied to photocuring 3D printing, which comprises a chip assembly, a shell is arranged at the top end of the chip assembly, the chip assembly is fixedly connected with the shell, a connecting piece is arranged on one side, far away from the chip assembly, of the shell, and the connecting piece is fixedly connected with the chip assembly. A micro lens assembly is arranged on one side, far away from the shell, of the connecting piece; wherein the micro lens assembly comprises a lens tube, a scattering tube and a lens, the lens tube is fixedly connected with the shell, the scattering tube is connected to the side, away from the connecting piece, of the lens tube, and the lens is connected to the side, away from the lens tube, of the scattering tube. The device solves the problem of insufficient irradiation precision of the light source module, and achieves the effects of improving the irradiation precision and quality and reducing the risk of thermal fatigue and thermal damage.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field more specifically, it relates to a kind of controllable micrometer array light source module applied to photocuring 3D printing. BACKGROUND

[0002] Light source module is usually composed of light source, optical assembly, mechanical structure and electrical control assembly, but the precision of this light source module itself is not high, and most of them can only realize simple functions, and cannot be used in some cases with high light source precision requirements.

[0003] For example, in the field of 3D printing, the precision and reliability of photocuring technology directly affect the quality of the final product and the user experience. First, the traditional refractive light source focuses light through a lens group, but due to the diffraction effect of light and the inherent aberration of the lens system, it is difficult to achieve precise area-selective irradiation. Second, this inaccurate curing can cause unexpected curing of non-target areas, resulting in abnormal interlayer bonding, increased surface roughness, and even structural deformation when printing complex structures or fine features. More seriously, this technical limitation directly affects user experience. When printing with high precision, users often need to adjust parameters repeatedly, add support structures or sacrifice printing speed to compensate for the shortcomings of the light source system. This not only increases the difficulty of use, but also limits the application potential of 3D printing technology in precision manufacturing, medical implants and other fields.

[0004] Therefore, a controllable micrometer array light source module applied to photocuring 3D printing is proposed to solve the above problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a controllable micrometer array light source module applied to photocuring 3D printing, which improves the precision and quality of irradiation, reduces the risk of thermal fatigue and thermal damage.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A controllable micrometer array light source module applied to photocuring 3D printing, comprising a chip assembly, a housing is provided at the top end of the chip assembly, the chip assembly is fixedly connected with the housing, a connecting piece is provided on the side of the housing away from the chip assembly, and a micro-lens assembly is provided on the side of the connecting piece away from the housing.

[0008] By adopting the above technical scheme, the mirror tube, the scattering tube and the lens can effectively reduce the divergence angle of the micro lens assembly, avoid light crosstalk phenomenon between each micro lens assembly, and improve the precision and quality of illumination.

[0009] The utility model further sets up: mirror tube set up hollow cylindrical structure, scattering tube set up hollow conical structure, lens set up hollow cylindrical structure, mirror tube's diameter is less than the diameter of lens.

[0010] The utility model further sets up: the chip subassembly includes drive chip, drive chip is close to the active layer that one side of shell is provided with, active layer is provided with a plurality of groups of microstructure on the side away from drive chip.

[0011] The utility model further sets up: a plurality of groups of bump metal are arranged between drive chip and active layer, and a plurality of groups of bump metal are evenly distributed between drive chip and active layer.

[0012] The utility model further sets up: the microstructure sets up wedge structure, and a plurality of groups of microstructure are evenly distributed on the surface of the active layer close to the one side of shell.

[0013] By adopting the above technical scheme, the wedge structure of microstructure can avoid damaging the active layer during manufacturing, improve the yield of light source module production, and improve the illumination accuracy of the light source module by avoiding damage to the active layer. During use, the distribution of thermal stress can be adjusted, the stress concentration caused by the difference in thermal expansion between the active layer and other parts can be relieved, and the risk of thermal fatigue and thermal damage can be reduced.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. By mirror tube, scattering tube and lens, the divergence angle of the micro lens assembly can be effectively reduced, light crosstalk phenomenon between each micro lens assembly can be avoided, and the precision and quality of illumination can be improved.

[0016] 2. By the wedge structure of microstructure, the active layer can be avoided during manufacturing, the yield of light source module production can be improved, and the illumination accuracy of the light source module can be improved by avoiding damage to the active layer. During use, the distribution of thermal stress can be adjusted, the stress concentration caused by the difference in thermal expansion between the active layer and other parts can be relieved, and the risk of thermal fatigue and thermal damage can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model is applied to the structure diagram of controllable micrometer array light source module of photocuring 3D printing.

[0018] Figure 2The chip assembly is a structure schematic view of the utility model.

[0019] Figure 3 The chip assembly is a structure schematic view of the utility model.

[0020] Reference signs: 1, chip assembly;11, drive chip;12, active layer;13, microstructure;14, bump metal;

[0021] 2, shell;

[0022] 3, connecting piece;

[0023] 4, micro lens assembly;41, mirror tube;42, scattering tube;43, lens. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0026] Embodiment one, please refer to Figures 1-3 The utility model provides the following technical schemes:

[0027] Specifically refers to a kind of controllable micrometer array light source module applied to photocuring 3D printing, please refer to Figure 1 Including chip assembly 1, chip assembly 1 is used to convert electric energy into light energy, chip assembly 1 top end is provided with shell 2, chip assembly 1 and shell 2 are fixedly connected, shell 2 is used to provide installation environment, shell 2 is provided with connecting piece 3 on the side away from chip assembly 1, connecting piece 3 connects shell 2 and micro lens assembly 4, connecting piece 3 is provided with micro lens assembly 4 on the side away from shell 2, micro lens assembly 4 is used to gather light and emit to the product surface of 3D printer printing, carries out photocuring treatment.

[0028] Please refer to Figure 2The chip assembly 1 includes a driving chip 11, the driving chip 11 is provided with an active layer 12 on the side close to the shell 2, and a plurality of microstructures 13 are arranged on the side of the active layer 12 away from the driving chip 11. A plurality of bump metals 14 are arranged between the driving chip 11 and the active layer 12, and the plurality of bump metals 14 are uniformly distributed between the driving chip 11 and the active layer 12. The microstructure 13 is arranged in a wedge-shaped structure, and a plurality of microstructures 13 are uniformly distributed on the surface of the active layer 12 close to the shell 2. Among them, the driving chip 11 and the active layer 12 are connected through a metal eutectic bonding process, and the bump metal is plated on the driving chip 11 and the light source chip by a plating process.

[0029] Referring to Figure 3 In manufacturing, the microstructure 13 is provided with an epitaxial buffer layer 15 on the side away from the active layer 12, and a growth substrate 16 is arranged on the side of the epitaxial buffer layer 15 away from the microstructure 13. The chip assembly 1 and the epitaxial buffer layer 15 and the growth substrate 16 are peeled off by a chemical reagent, and the epitaxial buffer layer 15 is corroded in the peeling process, and the microstructure 13 in the chip assembly 1 is separated from the production substrate, leaving the wedge-shaped structure of the microstructure 13. The microstructure 13 and the epitaxial buffer layer 15 are made of the same material, and if the chemical reagent is placed a little more during peeling, the active layer 12 can also be protected by the microstructure 13, improving the yield of the light source module during production and avoiding damage to the active layer 12. The illumination accuracy of the light source module can also be improved.

[0030] In use, the active layer 12 converts electrical energy into light energy, and the microstructure 13 can adjust the distribution of thermal stress, and can relieve the stress concentration between the active layer 12 and other parts caused by the difference in thermal expansion, and reduce the risk of thermal fatigue and thermal damage.

[0031] Referring to Figure 1 The micro-lens assembly 4 includes a lens tube 41, a scattering tube 42 and a lens 43, the scattering tube 42 is connected on the side of the lens tube 41 away from the connecting piece 3, the lens 43 is connected on the side of the scattering tube 42 away from the lens tube 41, the lens tube 41 is fixedly connected with the shell 2, the lens tube 41 is arranged in a hollow cylindrical structure, the scattering tube 42 is arranged in a hollow conical structure, and the lens 43 is arranged in a hollow cylindrical structure. The diameter of the lens tube 41 is smaller than the diameter of the lens 43.

[0032] In the connecting piece 3 D printer, a plurality of micro-lens assemblies 4 are generally used together, and in use, the lens tube 41, the scattering tube 42 and the lens 43 can effectively reduce the divergence angle of the micro-lens assembly 4, avoid light crosstalk phenomenon between each micro-lens assembly 4, and improve the accuracy and quality of illumination.

[0033] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. A controllable micron array light source module for photopolymerization 3D printing, characterized in that: Includes a chip assembly (1), a housing (2) is provided at the top of the chip assembly (1), the chip assembly (1) is fixedly connected to the housing (2), a connector (3) is provided on the side of the housing (2) away from the chip assembly (1), and a microlens assembly (4) is provided on the side of the connector (3) away from the housing (2). The microlens assembly (4) includes a lens tube (41), a scattering tube (42) and a lens (43). The lens tube (41) is fixedly connected to the housing (2). The scattering tube (42) is connected to the side of the lens tube (41) away from the connector (3). The lens (43) is connected to the side of the scattering tube (42) away from the lens tube (41).

2. The controllable micron array light source module for photopolymerization 3D printing according to claim 1, characterized in that: The lens tube (41) is configured as a hollow cylindrical structure, the scattering tube (42) is configured as a hollow conical structure, and the lens (43) is configured as a hollow cylindrical structure. The diameter of the lens tube (41) is smaller than the diameter of the lens (43).

3. The controllable micron array light source module for photopolymerization 3D printing according to claim 1, characterized in that: The chip assembly (1) includes a driver chip (11), and an active layer (12) is provided on the side of the driver chip (11) near the housing (2). Multiple microstructures (13) are provided on the side of the active layer (12) away from the driver chip (11).

4. A controllable micron array light source module for photopolymerization 3D printing according to claim 3, characterized in that: Multiple sets of bump metal (14) are disposed between the driving chip (11) and the active layer (12), and the multiple sets of bump metal (14) are evenly distributed between the driving chip (11) and the active layer (12).

5. A controllable micron array light source module for photopolymerization 3D printing according to claim 4, characterized in that: The microstructure (13) is configured as a wedge-shaped structure, and multiple sets of the microstructure (13) are uniformly distributed on the surface of the active layer (12) near the shell (2).

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