COB reflector module

Abstract

The utility model relates to the technical field of 3D printing, in particular to a COB reflector module, which comprises a printing platform, a COB light source module, a lampshade assembly, a reflector module and a screen module, the light emitting direction of the COB light source module and the center line of the reflector module form an included angle of 45 degrees, and the center line of the COB light source module and the center line of the reflector module form an included angle of 45 degrees. Light emitted by the COB light source module is emitted by the reflector module and then is vertically emitted to the screen module. According to the utility model, the included angle of 45 degrees is formed between the light emitting direction of the COB light source module and the center line of the reflector module, so that the light emitted by the COB light source module can be ensured to be vertically emitted to the screen module after being reflected by the reflector module, the purpose of ensuring the perpendicularity of the light emitted to the screen module is further realized, and the light emitting efficiency is improved under the condition that the total optical path is not changed. The distance between the screen module and the COB light source module can be reduced, the structure is simple, the occupied space is saved, and integration is facilitated; by arranging the extinction layer, light scattering can be effectively avoided, and the light utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a COB mirror module. Background Art

[0002] A 3D printer is a rapid prototyping machine. Based on a digital model file, it uses bondable materials such as powdered metal or plastic and obtains products by layer-by-layer printing. Due to its advantages such as relatively fast manufacturing speed, a variety of material types, and good economic benefits, 3D printers have been gradually popularized and applied.

[0003] Stereolithography is the earliest practical rapid prototyping technology for 3D printers. A laser with a specific wavelength and intensity is focused on the surface of the photocurable material, causing it to solidify sequentially from point to line and from line to surface to complete the drawing operation of one layer. Then, the lifting platform moves a layer height in the vertical direction and another layer is solidified. In this way, layers are stacked to form a three-dimensional entity and obtain the product.

[0004] For existing stereolithography printers, to ensure printing accuracy, the light rays hitting the screen need to be kept as parallel as possible. For example, a Chinese patent with the application number CN202310133210.7 discloses a printer that uses a light source module including an integrally arranged light-emitting component and a lens, so that the light source module can emit light rays with a fixed emission angle and uniform energy. And the light rays emitted by the light source module are reflected by the reflecting surface of the concave curved surface and can be converted into light rays vertically hitting the screen, that is, the light rays emitted by the light source module can vertically hit the screen, thereby achieving the purpose of improving the perpendicularity of the light rays hitting the screen.

[0005] However, the above-disclosed printer has some deficiencies. For example, it is necessary to add a lens and a concave curved surface optical mirror to ensure that the light rays emitted by the light-emitting component vertically hit the screen. The structure is complex, the volume is large, it is not convenient for integration, and the practicability is poor.

[0006] Therefore, the utility model provides a COB mirror module. Summary of the Utility Model

[0007] Based on this, it is necessary to provide a COB mirror module for the above technical problems.

[0008] To achieve the above object, the technical solution of the utility model is as follows:

[0009] The COB mirror module includes a printing platform, a COB light source module, a lamp shade assembly, a reflecting mirror module, and a screen module. The COB light source module, the reflecting mirror module, and the screen module are all detachably connected to the printing platform. The lamp shade is detachably connected to the light-emitting end of the COB light source module. The emission light direction of the COB light source module forms a 45° angle with the center line of the reflecting mirror module. The light emitted by the COB light source module is perpendicularly emitted to the screen module after being reflected by the reflecting mirror module.

[0010] Furthermore, the printing platform includes a substrate and a mounting frame fixedly installed on one side of the substrate. A plurality of connecting parts are also fixedly installed on one side of the substrate, and the connecting parts are arranged outside the mounting frame. The screen module is detachably connected to the substrate, and the COB light source module and the reflecting mirror module are both detachably connected to the mounting frame.

[0011] Furthermore, the COB light source module includes a light source mounting plate and a COB light source fixedly installed on the light source mounting plate. The light source mounting plate is fixedly connected to the mounting frame by bolts.

[0012] Furthermore, the reflecting mirror module includes a reflecting mirror mounting plate and a reflecting mirror fixedly installed on the reflecting mirror mounting plate. The reflecting mirror mounting plate is fixedly connected to the mounting frame by bolts. The emission light direction of the COB light source forms a 45° angle with the center line of the reflecting mirror.

[0013] Furthermore, the screen module includes a screen mounting seat, a light-transmitting plate fixedly installed on the screen mounting seat, and a screen fixedly installed on the light-transmitting plate. The screen mounting seat is fixedly connected to the mounting frame by bolts.

[0014] Furthermore, the light-transmitting plate is a glass plate.

[0015] Furthermore, the lamp shade assembly includes a lamp shade and a light extinction layer provided on the inner surface of the lamp shade. The lamp shade is fixedly connected to the reflecting mirror mounting plate by bolts.

[0016] Furthermore, the light extinction layer is a black light extinction film adhered to the inner surface of the lamp shade.

[0017] Furthermore, the light extinction layer is a rough surface, and the inner wall surface of the lamp shade is black after surface treatment.

[0018] Furthermore, the light extinction layer is a light extinction coating.

[0019] The advantages and beneficial effects of the present utility model are as follows: For the COB mirror module provided by the present utility model, by arranging the emission light direction of the COB light source module at an angle of 45° with the center line of the mirror module, it can ensure that the light emitted by the COB light source module is reflected by the mirror module and perpendicularly irradiates the screen module, thereby achieving the purpose of ensuring the perpendicularity of the light irradiating the screen module. At the same time, without changing the total optical path, the distance between the screen module and the COB light source module can be reduced. The structure is simple, taking up less space and being convenient for integration; by setting an extinction layer, light scattering can be effectively avoided, improving the light utilization rate. Brief Description of the Drawings

[0020] Figure 1 It is a perspective view of the COB mirror module in an embodiment of the present utility model;

[0021] Figure 2 It is a structural schematic diagram of the COB mirror module in an embodiment of the present utility model.

[0022] Reference Signs: Substrate 1, Mounting Frame 2, Connecting Portion 3, Screen Module 4, Screen Mounting Base 5, Translucent Plate 6, Screen 7, Light Source Mounting Plate 8, COB Light Source 9, Lamp Shade 10, Extinction Layer 11, Mirror Mounting Plate 12, Mirror 13. Detailed Embodiment

[0023] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application. Without conflict, the features in the following embodiments and the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mount", "connect", and "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0025] Refer to the attached Figure 1-2 In this embodiment, a COB mirror module is provided, which includes a printing platform, a COB light source module, a lamp shade assembly, a mirror module, and a screen module 4.

[0026] In this embodiment, the printing platform involved in the utility model is composed of a substrate 1, a mounting frame 2 and a connecting part 3. Among them, the mounting frame 2 is fixedly installed on the substrate 1 by bolts. A plurality of connecting parts 3 are fixedly installed on one side of the substrate 1, and the connecting parts 3 are arranged outside the mounting frame 2. The screen module 4 is detachably connected to the substrate 1, and the COB light source module and the mirror module are both detachably connected to the mounting frame 2. By using the fact that the COB light source module, the mirror module and the screen module 4 are all detachably connected to the printing platform, it is convenient for disassembly and assembly and easy to use.

[0027] In this embodiment, the number of the connecting parts 3 is 4, which is used to assemble the printing platform on the frame of the stereolithography 3D printer. It should be understood that the main structural components (such as the frame, etc.) of the stereolithography 3D printer are prior art, including but not limited to the structure in the stereolithography 3D printer with the reference application number CN201310437009.4, and will not be elaborated here.

[0028] In this embodiment, the COB light source module includes a light source mounting plate 8 and a COB light source 9 fixedly installed on the light source mounting plate 8. The light source mounting plate 8 is fixedly connected to the mounting frame 2 by bolts; the mirror module includes a mirror mounting plate 12 and a mirror 13 fixedly installed on the mirror mounting plate 12. The mirror mounting plate 12 is fixedly connected to the mounting frame 2 by bolts. The emission light direction of the COB light source 9 forms a 45° angle with the center line of the mirror 13.

[0029] In this embodiment, in order to ensure the perpendicularity of the light rays directed to the screen module 4, by arranging the emission light direction of the COB light source 9 and the center line of the mirror 13 to form a 45° angle, it can be ensured that the light rays emitted by the COB light source 9 are reflected by the mirror 13 and then perpendicularly directed to the screen 7, so as to improve the perpendicularity of the light rays directed to the screen 7; in addition, without changing the total optical path, the distance between the screen 7 and the COB light source 9 can also be reduced. The structure is simple, occupies less space, and is convenient for integration.

[0030] In this embodiment, the screen module 4 includes a screen mounting seat 5, a light-transmitting plate 6 fixedly installed on the screen mounting seat 5, and a screen 7 fixedly installed on the light-transmitting plate 6. The screen mounting seat 5 is fixedly connected to the mounting frame 2 by bolts.

[0031] In this embodiment, the light-transmitting plate 6 is a flat plate with a certain rigidity (for example: glass plate, acrylic plate, polycarbonate plate, etc., which can be flexibly selected according to actual production applications and will not be limited here), and is used to support and protect the screen 7.

[0032] In this embodiment, the lamp cover assembly includes a lamp cover 10 and a light extinction layer 11 disposed on the inner surface of the lamp cover 10. The lamp cover 10 is fixedly connected to the mirror mounting plate 12 by bolts.

[0033] In this embodiment, in order to prevent the light emitted by the COB light source 9 from being easily scattered, the present utility model proposes to arrange a lamp cover 10 outside the COB light source 9 and provide a light extinction layer 11 on the inner surface of the lamp cover 10, so as to effectively avoid light scattering and improve light utilization rate.

[0034] In this embodiment, the light extinction layer 11 is a black light extinction film adhered to the inner surface of the lamp cover 10. Among them, the black light extinction film includes but is not limited to light extinction polyimide film, PET polyester light-shielding film, etc., which can be flexibly selected according to the actual production situation and will not be limited here.

[0035] In this embodiment, the light extinction layer 11 is a rough surface, and the inner wall surface of the lamp cover 10 is black after surface treatment. By increasing the roughness of the inner wall surface of the lamp cover 10, the purpose of avoiding light scattering can be achieved.

[0036] In this embodiment, the light extinction layer 11 is a light extinction coating. Among them, the light extinction coating includes but is not limited to PVA light extinction coating, light extinction ink coating, etc., which can be flexibly selected according to the actual production situation and will not be limited here.

[0037] The working principle of the present utility model is as follows: First, assemble this COB mirror module and assemble this COB mirror module on the frame of the light-curing 3D printer. Since the angle formed between the emission direction of the light of the COB light source 9 and the center line of the mirror 13 is 45°, it can ensure that the light emitted by the COB light source 9 is reflected by the mirror 13 and perpendicularly irradiates the screen 7, so as to improve the perpendicularity of the light irradiating the screen 7. At the same time, without changing the total optical path, the distance between the screen 7 and the COB light source 9 can also be reduced. The structure is simple, occupies less space, and is convenient for integration; by arranging a lamp cover 10 outside the COB light source 9 and providing a light extinction layer 11 on the inner surface of the lamp cover 10, light scattering can be effectively reduced and light utilization rate can be improved.

[0038] The above content is a further detailed description of the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present utility model.

Claims

1. COB reflector module, characterized in that: It includes a printing platform, a COB light source module, a lampshade assembly, a reflector module and a screen module. The COB light source module, the reflector module and the screen module are all detachably connected to the printing platform. The lampshade is detachably connected to the light-emitting end of the COB light source module. The light emission direction of the COB light source module forms an angle of 45° with the center line of the reflector module. The light emitted by the COB light source module is vertically emitted toward the screen module after being emitted by the reflector module.

2. The COB reflector module according to claim 1, characterized in that: The printing platform includes a base plate and a mounting frame fixedly mounted on one side of the base plate. A plurality of connecting parts are also fixedly mounted on one side of the base plate, and the connecting parts are arranged on the outside of the mounting frame. The screen module is detachably connected to the base plate, and the COB light source module and the reflector module are both detachably connected to the mounting frame.

3. The COB reflector module according to claim 2, characterized in that: The COB light source module comprises a light source mounting plate and a COB light source fixedly mounted on the light source mounting plate. The light source mounting plate is fixedly connected to a mounting frame by bolts.

4. The COB reflector module according to claim 3, characterized in that: The reflector module comprises a reflector mounting plate and a reflector fixedly mounted on the reflector mounting plate. The reflector mounting plate is fixedly connected to the mounting frame by bolts. The emission direction of the COB light source forms an angle of 45° with the center line of the reflector.

5. The COB reflector module according to claim 2, characterized in that: The screen module comprises a screen mounting seat, a light-transmitting plate fixedly mounted on the screen mounting seat, and a screen fixedly mounted on the light-transmitting plate. The screen mounting seat is fixedly connected to the mounting frame by bolts.

6. The COB reflector module according to claim 5, characterized in that: The light-transmitting plate is a glass plate.

7. The COB reflector module according to claim 4, characterized in that: The lampshade assembly comprises a lampshade and a matte layer arranged on the inner surface of the lampshade, and the lampshade is fixedly connected to the reflector mounting plate by bolts.

8. The COB reflector module according to claim 7, characterized in that: The matt layer is a black matt film adhered to the inner surface of the lampshade.

9. The COB reflector module according to claim 7, characterized in that: The matte layer is a rough surface, and the inner wall of the lampshade is black after surface treatment.

10. The COB reflector module according to claim 7, characterized in that: The matt layer is a matt coating.

Images