Double-color PCB (Printed Circuit Board) detection light source device
By adopting a multi-angle arrangement of lamp plates and diffusion plate structures in PCB detection, combining white light and infrared light sources, the problems of shadows and oil layers are solved, and all-round clear irradiation is achieved, and detection accuracy and accuracy are improved.
Patent Information
- Application Number
- CN202422314121.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-23
AI Technical Summary
There are shadows or unsatisfactory locations in the detection of existing PCB boards, resulting in low recognition and oil layer coverage increases detection difficulty and affects detection accuracy.
The multi-angle arrangement of lamp plates and diffusion plate structures are adopted, combined with white light and infrared light sources, and the control module switches to achieve multi-angle illumination and light diffusion, ensuring all-round illumination of the detection product and improving the softness of the light.
It realizes all-round clear irradiation of the detection product, improves detection accuracy and recognition, reduces shadowed areas, and enhances detection accuracy.
Smart Images
Figure CN223137737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB detection, and particularly relates to a dual-color PCB detection light source device. Background Art
[0002] During the production process of PCB boards, accurate detection is crucial. Due to the process complexity of PCB boards, different detection requirements demand more flexible solutions; in the existing PCB board detection, although the light provided by the built-in lighting lamp can illuminate most areas, there will still be shadows or positions with unsatisfactory brightness, resulting in low recognition during shooting and affecting detection judgment.
[0003] In addition to the above problems, a thin oil layer will cover the surface of the PCB board, which increases the detection difficulty to a certain extent; the existence of the oil layer not only affects the propagation of light, but may also cover some subtle defects, making it difficult to judge later. Summary of the Invention
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a dual-color PCB detection light source device with accurate detection.
[0005] To solve the above problems, the utility model provides the following technical solutions:
[0006] A dual-color PCB detection light source device, which includes: a main body, provided with a detection port and an irradiation port, the detection port is used to present the detection product, and the irradiation port is used for the camera to shoot the detection product at the detection port;
[0007] A light source assembly, installed in the main body, for emitting white light and / or infrared light, and capable of realizing multi-angle irradiation;
[0008] A light diffusing assembly, installed in the main body, for diffusing the light emitted by the light source assembly;
[0009] A control module, for controlling the conversion between white light and infrared light;
[0010] Wherein, when the light source assembly irradiates, the irradiated light is diffused by the light diffusing assembly, so that the light is diffusely irradiated at multiple angles to the detection port.
[0011] In some embodiments, the light source assembly includes a horizontal light source, a vertical light source and a pointing light source;
[0012] The light emitted by the horizontal light source is parallel to the surface of the detection product;
[0013] The light emitted by the vertical light source is vertically directed to the surface of the detection product;
[0014] The light emitted by the pointing light source forms an angle with the surface of the detection product and the emitted light points to the detection product.
[0015] In some embodiments, the horizontal light source includes a first lamp board and a second lamp board; the first lamp board and the second lamp board are respectively located on both sides of the detection port, and the first lamp board and the second lamp board form a zero-degree incidence.
[0016] The vertical light source includes a third lamp board, and the third lamp board faces the detection port directly.
[0017] The pointing lamp board includes a fourth lamp board and a fifth lamp board, and the fourth lamp board and the fifth lamp board are respectively located on both sides of the detection port.
[0018] The fourth lamp board is located between the first lamp board and the third lamp board, and the fifth lamp board is located between the second lamp board and the third lamp board.
[0019] In some embodiments, the light diffusing component includes a first diffusing plate, a second diffusing plate and a third diffusing plate.
[0020] The first diffusing plate, the second diffusing plate and the third diffusing plate are located on the side of the light source component close to the detection port.
[0021] There is an angle between two adjacent ones of the first diffusing plate, the second diffusing plate and the third diffusing plate.
[0022] When detecting the detection product, the light emitted by the light source component irradiates the detection product through the first diffusing plate, the second diffusing plate and the third diffusing plate.
[0023] In some embodiments, the first diffusing plate is located on one side of the first lamp board, and the second diffusing plate is located on one side of the second lamp board; the third diffusing plate covers the third lamp board, and the third diffusing plate is located on the side of the first diffusing plate and the second diffusing plate far from the detection port.
[0024] One end of the first diffusing plate adjacent to the detection port is adjacent to the first lamp board, and one end of the first diffusing plate close to the third lamp board is far from the first lamp board; one end of the second diffusing plate adjacent to the detection port is adjacent to the second lamp board, and one end of the second diffusing plate close to the third lamp board is far from the second lamp board.
[0025] There is a gap between the first diffusing plate and the second diffusing plate. The angle between the first diffusing plate and the third diffusing plate is between 40 - 50 degrees, and the angle between the second diffusing plate and the third diffusing plate is between 55 - 65 degrees; the third diffusing plate is located directly above the first diffusing plate.
[0026] When the light source assembly emits light, the first diffuser plate and the third diffuser plate cause the light source to perform multiple diffuse reflections and transmissions; the first diffuser plate and the second diffuser plate cause the light source to perform multiple diffuse reflections and transmissions; so that the irradiated light is irradiated on the inspection product at multiple angles through the inspection port;
[0027] When the camera takes a picture of the inspected product, the inspection port, the irradiation port, and the interval between the first diffusion plate and the second diffusion plate are in a straight line, so that the shooting will not be blocked.
[0028] In some embodiments, the first light board, the second light board, the third light board, the fourth light board and the fifth light board are all light boards composed of a staggered combination of a plurality of infrared LED lamp beads and a plurality of white light LED lamp beads.
[0029] In some embodiments, the control module includes a first aviation head and a second aviation head; the first aviation head controls the light emission of white light LED lamp beads, and the second aviation head controls the light emission of infrared LED lamp beads.
[0030] In some embodiments, the first diffuser plate, the second diffuser plate, and the third diffuser plate are PMMA diffuse reflection plates.
[0031] In some embodiments, the light source device further includes a heat dissipation structure; the heat dissipation structure dissipates heat from the light source assembly.
[0032] In some embodiments, the heat dissipation structure includes a heat dissipation plate and a heat dissipation fan;
[0033] The heat sink is mounted on the light source assembly, the heat sink fan is mounted on the main body, and the heat sink fan dissipates heat from the heat sink.
[0034] The beneficial effect of the utility model is that by arranging a plurality of light panels at different angles, the emitted light can illuminate the inspection product at multiple angles, and then by arranging a plurality of diffusion panels at different angles, the light emitted by the light panels can be diffusely reflected and transmitted multiple times, which not only ensures the brightness, but also enables the inspection product to be illuminated in all directions. At the same time, the diffusion panels also soften the light irradiated on the inspection product, making it clearer when shooting and improving the inspection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a three-dimensional diagram of the utility model;
[0036] Figure 2 This is a three-dimensional diagram of the utility model without the end cover;
[0037] Figure 3 It is an exploded view of the utility model;
[0038] Figure 4This is the front view cross-sectional view of the present utility model;
[0039] Figure 5 This is the schematic diagram of the transmitted light of the present utility model;
[0040] Figure 6 This is the schematic diagram of the diffuse reflected light of the present utility model.
[0041] Reference numerals:
[0042] 100, light source device; 110, main body; 120, light source assembly; 130, light diffusing assembly; 140, control module; 150, heat dissipation structure; 160, detection product; 200, camera;
[0043] 111, detection port; 112, irradiation port;
[0044] 121, horizontal light source; 122, vertical light source; 123, pointing light source; 12a, first lamp board; 12b, second lamp board; 12c, third lamp board; 12d, fourth lamp board; 12e, fifth lamp board;
[0045] 131, first diffuser plate; 132, second diffuser plate; 133, third diffuser plate;
[0046] 141, first aviation connector; 142, second aviation connector;
[0047] 151, heat dissipation plate; 152, heat dissipation fan. Detailed implementation manners
[0048] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0050] For the convenience of describing the first direction, the second direction, and the third direction in the embodiments of the present application, the first direction is the left - right direction in the attached drawings, the second direction is the front - back direction in the attached drawings, and the third direction is the up - down direction in the attached drawings. Among them, the direction of the x - axis arrow is the "right" direction in the following text, the direction of the y - axis arrow is the "up" direction in the following text, and the direction of the z - axis arrow is the "back" direction in the following text. In the actual application of the present application, this is not limited thereto.
[0051] As Figure 3-6 shown, this embodiment provides a dual - color PCB detection light source device, which includes a main body 110. There are a detection port 111 and an irradiation port 112 on the main body 110. The detection port 111 is used to present the detection product 160, and the irradiation port 112 is used for the camera 200 to take pictures of the detection product 160 at the detection port 111. The light source assembly 120 is installed inside the main body 110 and is used to emit white light and / or infrared light, and can realize multi - angle irradiation. The light - scattering assembly 130 is installed inside the main body 110 and is used to diffuse the light emitted by the light source assembly 120. That is, when the light source assembly 120 irradiates, the irradiated light is diffused by the light - scattering assembly 130, so that the light is diffusely irradiated at multiple angles to the detection port 11, illuminating the detection product 160 and making the camera 200 take clearer pictures of the detection product 160.
[0052] In this embodiment, the light source device 100 further includes a control module 140, which is used to control the conversion between white light and infrared light. That is to say, when the detection product 160 needs to be irradiated with white light, triggering the control module 140 can start the light source assembly 120 for white - light irradiation. When the detection product 160 needs to be irradiated with infrared light, triggering the control module 140 can start the light source assembly 120 for infrared - light irradiation, which is convenient to operate.
[0053] As Figure 4 shown, in this embodiment, the light source assembly 120 includes a horizontal light source 121, a vertical light source 122, and a pointing light source 123. The light emitted by the horizontal light source 121 is parallel to the surface of the detection product; the light emitted by the vertical light source 122 is vertically directed to the surface of the detection product 160; the light emitted by the pointing light source 123 forms an angle with the surface of the detection product 160 and the emitted light points to the detection product 160.
[0054] When detecting the detection product 160, it is irradiated from different directions by the horizontal light source 121, the vertical light source 122, and the pointing light source 123, so that the detection product 160 is illuminated at multiple angles, preventing shadow areas that cannot be irradiated due to the unevenness of the components on the detection product 160, which may affect the shooting and detection.
[0055] As Figure 4As shown, in this embodiment, the horizontal light source 121 includes a first lamp board 12a and a second lamp board 12b; the first lamp board 12a and the second lamp board 12b are respectively located on both sides of the detection port 111, and the first lamp board 12a and the second lamp board 12b form a zero-degree incidence. The vertical light source 122 includes a third lamp board 12c, and the third lamp board 12c faces the detection port 111 directly. The pointing lamp board 123 includes a fourth lamp board 12d and a fifth lamp board 12e, and the fourth lamp board 12d and the fifth lamp board 12e are respectively located on both sides of the detection port 111. The fourth lamp board 12d is located between the first lamp board 12a and the third lamp board 12c, and the fifth lamp board 12d is located between the second lamp board 12b and the third lamp board 12c. There are two horizontal light sources 121 and pointing lamp boards 123, which are respectively arranged on both sides of the detection port 111, and are vertically irradiated by a third lamp board 12c, so that the irradiated light illuminates the detection product 160 from multiple angles.
[0056] As Figure 4 As shown, in this embodiment, the light scattering component 130 includes a first diffusion plate 131, a second diffusion plate 132, and a third diffusion plate 133. The first diffusion plate 131, the second diffusion plate 132, and the third diffusion plate 133 are located on the side of the light source component 120 close to the detection port 111. There is an angle between two adjacent ones of the first diffusion plate 131, the second diffusion plate 132, and the third diffusion plate 133. When detecting the detection product 160, the light emitted by the light source component 120 is irradiated onto the detection product 160 through the first diffusion plate 131, the second diffusion plate 132, and the third diffusion plate 133. The first diffusion plate 131, the second diffusion plate 132, and the third diffusion plate 133 perform diffuse reflection and transmission on the light, so that the detection product 160 is irradiated in all directions through the arbitrary divergence of diffuse reflection, and at the same time, the light irradiated onto the detection product 160 becomes soft, making it clearer during shooting and improving the detection accuracy.
[0057] In this embodiment, the first diffuser plate 131 is located on one side of the first lamp board 12a, and the second diffuser plate 132 is located on one side of the second lamp board 12b; the third diffuser plate 133 covers the third lamp board 12c, and the third diffuser plate 133 is located on the side of the first diffuser plate 131 and the second diffuser plate 132 away from the detection port 111. One end of the first diffuser plate 131 located at the detection port 111 is adjacent to the first lamp board 12a, and one end of the first diffuser plate 131 close to the third lamp board 12c is away from the first lamp board 12a; one end of the second diffuser plate 132 located at the detection port 111 is adjacent to the second lamp board 12b, and one end of the second diffuser plate 132 close to the third lamp board 12c is away from the second lamp board 12b. There is a gap between the first diffuser plate 131 and the second diffuser plate 132. The included angle between the first diffuser plate 131 and the third diffuser plate 133 is between 40 and 50 degrees, and the included angle between the second diffuser plate 132 and the third diffuser plate 133 is between 55 and 65 degrees; the third diffuser plate 133 is located directly above the first diffuser plate 131. When the light source assembly 120 emits light, the first diffuser plate 131 and the third diffuser plate 133 cause the light source to undergo multiple diffuse reflections and transmissions; the first diffuser plate 131 and the second diffuser plate 132 cause the light source to undergo multiple diffuse reflections and transmissions; so that the irradiated light irradiates the detection product 160 omnidirectionally through the detection port 111, making the light diffused onto the detection product 160 more, ensuring more accurate shooting.
[0058] When the camera 200 takes a picture of the detection product 160, the detection port 111, the irradiation port 112, and the gap between the first diffuser plate 131 and the second diffuser plate 132 are on a straight line, so that there is no obstruction during shooting, further ensuring clarity.
[0059] In this embodiment, the first lamp board 12a, the second lamp board 12b, the third lamp board 12c, the fourth lamp board 12d, and the fifth lamp board 12e are all lamp boards composed of a staggered combination of multiple infrared LED lamp beads and multiple white light LED lamp beads. By using the staggered combination of multiple infrared LED lamp beads and multiple white light LED lamp beads on each lamp board, after the infrared light and the white light are switched, the light can still achieve omnidirectional irradiation, ensuring the progress of the detection.
[0060] In this embodiment, the control module 140 includes a first aviation plug 141 and a second aviation plug 142; the first aviation plug 141 controls the white light LED lamp beads to emit light, and the second aviation plug 142 controls the infrared LED lamp beads to emit light. Just start the first aviation plug 141 and / or the second aviation plug 142 according to the detection requirements of the detection product 160, so that the light source assembly 120 emits corresponding light, and then the shooting can be completed. It is very convenient to use.
[0061] In this embodiment, the first diffuser plate 131, the second diffuser plate 132 and the third diffuser plate 133 are PMMA diffuse reflectors. The PMMA diffuse reflectors have high haze, high light transmittance and good diffusion properties, and can effectively convert point or line light sources into soft and uniform surface light sources, so that the inspection product 160 is displayed more clearly after being illuminated.
[0062] In this embodiment, the light source device 100 further includes a heat dissipation structure 150, which dissipates heat for the light source assembly 120. After the light board is started, the light board will generate heat, and in order to prevent the light board from being burned and ensure the normal operation of the light board, the heat dissipation structure 150 is required to dissipate the heat.
[0063] In this embodiment, the heat dissipation structure 150 includes a heat dissipation plate 151 and a heat dissipation fan 152. The heat dissipation plate 151 is installed on the light source assembly 120, and the heat dissipation fan 152 is installed on the main body 110. The heat dissipation fan 152 dissipates heat from the heat dissipation plate 151. That is, the heat dissipation plate 151 can timely guide the heat generated by the light board, and then blow it out through the heat dissipation fan 152, so that the heat on the light board is timely guided away, ensuring the normal operation of the light board.
[0064] In summary, the utility model provides a two-color PCB detection light source device, which can illuminate the detection product at multiple angles by arranging multiple light boards at different angles, and then make the light emitted by the light board undergo multiple diffuse reflections and transmissions through the arrangement of multiple diffusion plates at different angles, which not only ensures the brightness, but also makes the detection product achieve all-round illumination. At the same time, the diffusion plate also softens the light irradiated on the detection product, making it clearer when shooting and improving the detection accuracy.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A dual-color PCB detection light source device, characterized in that, Comprising: A main body, provided with a detection port and an irradiation port, where the detection port is used to present the product to be detected, and the irradiation port is used for a camera to take pictures of the product to be detected at the detection port; A light source assembly, installed inside the main body, for emitting white light and / or infrared light, capable of realizing multi-angle irradiation; A light diffusing assembly, installed inside the main body, for diffusing the light emitted by the light source assembly; A control module, for controlling the conversion between white light and infrared light; Wherein, when the light source assembly irradiates, the irradiated light is diffused by the light diffusing assembly, so that the light is diffusely irradiated to the detection port at multiple angles.
2. The dual-color PCB detection light source device according to claim 1, wherein: The light source assembly includes a horizontal light source, a vertical light source and a pointing light source; The light emitted by the horizontal light source is parallel to the surface of the product to be detected; The light emitted by the vertical light source is vertically directed at the surface of the product to be detected; The light emitted by the pointing light source forms an angle with the surface of the product to be detected and the emitted light is directed at the product to be detected.
3. The dual-color PCB detection light source device according to claim 2, characterized in that: The horizontal light source includes a first lamp board and a second lamp board; the first lamp board and the second lamp board are respectively located on both sides of the detection port, and the first lamp board and the second lamp board form a zero-degree incidence; The vertical light source includes a third lamp board, and the third lamp board faces the detection port; The pointing lamp board includes a fourth lamp board and a fifth lamp board, and the fourth lamp board and the fifth lamp board are respectively located on both sides of the detection port; The fourth lamp board is located between the first lamp board and the third lamp board, and the fifth lamp board is located between the second lamp board and the third lamp board.
4. The dual-color PCB detection light source device according to claim 3, wherein: The light diffusing assembly includes a first diffusing plate, a second diffusing plate and a third diffusing plate; The first diffusing plate, the second diffusing plate and the third diffusing plate are located on the side of the light source assembly close to the detection port; There is an angle between two adjacent ones of the first diffusing plate, the second diffusing plate and the third diffusing plate; When detecting the product to be detected, the light emitted by the light source assembly is irradiated to the product to be detected through the first diffusing plate, the second diffusing plate and the third diffusing plate.
5. The dual-color PCB detection light source device according to claim 4, characterized in that: The first diffusing plate is located on one side of the first lamp board, and the second diffusing plate is located on one side of the second lamp board; the third diffusing plate covers the third lamp board, and the third diffusing plate is located on the side of the first diffusing plate and the second diffusing plate far from the detection port; One end of the first diffusing plate adjacent to the detection port is adjacent to the first lamp board, and one end of the first diffusing plate close to the third lamp board is far from the first lamp board; One end of the second diffusing plate adjacent to the detection port is adjacent to the second lamp board, and one end of the second diffusing plate close to the third lamp board is far from the second lamp board; There is a gap between the first diffusing plate and the second diffusing plate, the angle between the first diffusing plate and the third diffusing plate is between 40-50 degrees, and the angle between the second diffusing plate and the third diffusing plate is between 55-65 degrees; the third diffusing plate is located directly above the first diffusing plate; When the light source assembly emits light, the first diffusing plate and the third diffusing plate cause the light source to undergo multiple diffuse reflections and transmissions; the first diffusing plate and the second diffusing plate cause the light source to undergo multiple diffuse reflections and transmissions; Allowing the irradiation light to irradiate the inspection product at multiple angles through the inspection port; When the camera takes a picture of the inspected product, the inspection port, the irradiation port, and the interval between the first diffusion plate and the second diffusion plate are in a straight line, so that the shooting will not be blocked.
6. The dual-color PCB detection light source device according to claim 3, wherein: The first light board, the second light board, the third light board, the fourth light board and the fifth light board are all light boards composed of a staggered combination of a plurality of infrared LED lamp beads and a plurality of white light LED lamp beads.
7. The dual-color PCB detection light source device according to claim 6, wherein: The control module includes a first aviation head and a second aviation head; the first aviation head controls the white light LED lamp beads to emit light, and the second aviation head controls the infrared LED lamp beads to emit light.
8. The dual-color PCB detection light source device according to claim 4, characterized in that: The first diffusion plate, the second diffusion plate and the third diffusion plate are PMMA diffuse reflection plates.
9. The dual-color PCB detection light source device according to claim 1, wherein: The light source device further comprises a heat dissipation structure; the heat dissipation structure dissipates heat from the light source assembly.
10. The dual-color PCB detection light source device according to claim 9, characterized in that: The heat dissipation structure includes a heat dissipation plate and a heat dissipation fan; The heat sink is mounted on the light source assembly, the heat sink fan is mounted on the main body, and the heat sink fan dissipates heat from the heat sink.