Plane shadowless light source device and detection system

Abstract

The utility model discloses a planar shadowless light source device and a detection system, which are used for solving the technical problem that in the existing visual detection process, dust falling from a detected object is easily accumulated on the planar shadowless light source device, so that the imaging effect is influenced. The LED lamp comprises an outer shell, a luminous body and a dustproof plate, a mounting opening is formed in the outer shell in the thickness direction of the outer shell, the luminous body is mounted in the outer shell, an embedding part is arranged on the periphery of the mounting opening, and the dustproof plate is matched with the embedding part and is flush with the first surface of the outer shell. According to the embodiment of the utility model, the dustproof plate is matched with the embedded part located at the periphery of the mounting port and is flush with the first surface of the outer shell, and through the design, when dust of a detected object is accumulated on the dustproof plate, an operator can easily clean the accumulated dust, so that the imaging effect is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of light source design, in particular to a planar shadowless light source device and a detection system. Background Art

[0002] In the prior art, the detection of workpieces is mostly completed by a vision detection system. Generally, the vision detection system includes a detection camera, a lens and a light source device.

[0003] To meet different detection requirements, there are many types of light sources, including backlights, front lights or shadowless lights, etc. Taking the detection of battery electrodes as an example, a planar shadowless light source device is required for the detection of battery electrodes. During the detection process, metal dust in the battery electrodes often falls into the planar shadowless light source device. After a long time, a large amount of metal dust accumulates in the planar shadowless light source device, and it is difficult for operators to clean it, which seriously affects the imaging effect.

[0004] Therefore, finding a technical solution to solve the above technical problems has become an important research topic for those skilled in the art. Summary of the Utility Model

[0005] The embodiment of the utility model discloses a planar shadowless light source device and a detection system, which are used to solve the technical problem that dust falling from the object to be detected is likely to accumulate on the planar shadowless light source device during the existing vision detection process, thereby affecting the imaging effect.

[0006] A planar shadowless light source device provided by the utility model includes an outer shell, a light-emitting body and a dust-proof plate;

[0007] An installation opening is formed in the outer shell along its thickness direction. The light-emitting body is installed inside the outer shell. An embedding part (101) is arranged around the installation opening. The dust-proof plate is matched with the embedding part and is flush with the first surface of the outer shell.

[0008] Optionally, the embedding part is an installation slot, and the dust-proof plate is fixedly embedded in the installation slot.

[0009] Optionally, it further includes a light guide plate. The light guide plate is installed inside the outer shell, and the light-emitting body is arranged around the light guide plate.

[0010] Optionally, the light-emitting body includes a plurality of PCB lamp boards;

[0011] The plurality of PCB lamp boards are arranged around the light guide plate.

[0012] Optionally, it further includes a control line. One end of the control line is electrically connected to the light-emitting body, and the other end of the control line passes through the outer shell.

[0013] Optionally, mounting holes are also provided on the outer housing.

[0014] An embodiment of the present utility model provides a detection system, including a detection camera, a lens connected to the detection camera, and the above-mentioned planar shadowless light source device.

[0015] Optionally, the detection camera is located on one side of the second surface of the planar shadowless light source device.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] In this embodiment, the dust-proof plate cooperates with the embedding part located around the installation opening and is flush with the first surface of the outer housing. Through the above design, when the dust and debris of the object to be detected accumulate on the dust-proof plate, the operator can easily clean the accumulated dust and debris, effectively ensuring the imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a planar shadowless light source device provided in an embodiment of the present utility model;

[0020] Figure 2 It is an exploded view of the structure of a planar shadowless light source device provided in an embodiment of the present utility model;

[0021] Figure 3 It is an optical path diagram of a planar shadowless light source device provided in an embodiment of the present utility model;

[0022] Illustration: Outer housing 1; Embedding part 101; First surface 102; Second surface 103; Dust-proof plate 2; Object to be detected 3; Detection camera 4; Lens 5; Light guide plate 6; PCB lamp board 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] An embodiment of the present utility model discloses a planar shadowless light source device and a detection system, which are used to solve the technical problem that in the existing vision detection process, the dust and debris falling from the object to be detected are likely to accumulate on the planar shadowless light source device, thereby affecting the imaging effect.

[0024] To help those skilled in the art better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] See also Figures 1 to 3 , a planar shadowless light source device provided in an embodiment of the present utility model includes an outer shell 1, a light emitting body and a dustproof plate 2;

[0026] The outer shell 1 is provided with a mounting opening along its thickness direction, the light-emitting body is installed inside the outer shell 1, an embedding portion 101 is provided on the periphery of the mounting opening, the dustproof plate 2 cooperates with the embedding portion 101 and is flush with the first surface of the outer shell 1.

[0027] It should be noted that, in order to facilitate light transmission, the dustproof plate 2 in this embodiment is made of a transparent material.

[0028] In this embodiment, the dustproof plate 2 cooperates with the embedded portion 101 located on the periphery of the installation port and is flush with the first surface of the outer shell 1. Through the above design, when dust of the object to be detected accumulates on the dustproof plate 2, the operator can easily clean the accumulated dust, effectively ensuring the imaging effect.

[0029] Furthermore, the embedding portion 101 in this embodiment is specifically a mounting slot, and the dustproof plate 2 is fixedly embedded in the mounting slot.

[0030] It should be noted that the above design can facilitate operators to quickly install or remove the dustproof plate 2.

[0031] Furthermore, the planar shadowless light source device in this embodiment further includes a light guide plate 6 , which is installed inside the outer shell 1 , and the light-emitting body is arranged around the light guide plate 6 .

[0032] It should be noted that the reflector in this embodiment is used to emit light, and the light guide plate 6 in this embodiment is used to guide light, and the light source is irradiated to a designated position through the light guide plate 6 .

[0033] Furthermore, the light emitting body in this embodiment includes a plurality of PCB light boards 7;

[0034] A plurality of PCB light boards 7 are arranged around the light guide plate 6 .

[0035] It should be noted that specifically, the light guide plate 6 has a first side, a second side, a third side, and a fourth side. Among them, the number of PCB lamp boards 7 is specifically 4, and the 4 PCB lamp boards 7 are respectively located on the first side, the second side, the third side plate, and the fourth side of the light guide plate 6.

[0036] Furthermore, the planar shadowless light source device in this embodiment further includes a control line. One end of the control line is electrically connected to the light-emitting body, and the other end of the control line passes through the outer housing 1.

[0037] It should be noted that the control line in this embodiment is used to transmit a control signal to the light-emitting body. The end that passes through the outer housing 1 is specifically connected to a control device. When the control device issues a start signal, it will pass through the control line, thereby lighting up the light-emitting body.

[0038] Furthermore, an installation hole is also provided on the outer housing 1 in this embodiment.

[0039] Please refer to Figures 1 to 3 , a detection system provided in an embodiment of the present invention includes a detection camera 4, a lens 5 connected to the detection camera 4, and the above-mentioned planar shadowless light source device.

[0040] Specifically, the detection camera 4 is located on one side of the second surface of the planar shadowless light source device, and the object to be detected, such as a battery electrode plate, is located on one side of the first surface of the planar shadowless light source device;

[0041] The actual detection process is as follows: The light source emitted by the planar shadowless light source device passes through the dust-proof plate 2 and irradiates onto the battery electrode plate. The light source is emitted from the battery electrode plate, and the reflected light passes through the dust-proof plate 2 and the light guide plate 6 in sequence and enters the lens 5 of the detection camera 4, thereby completing imaging. Specifically, the upper and lower surfaces of the dust-proof plate 2 are glass plated with an antireflection film. The light reflected from the battery electrode plate directly passes through the dust-proof plate 2, then passes through the light guide plate 6 and enters the lens 5 and the detection camera 4. Among them, the surface of the light guide plate is printed with dots, and the specific function is to guide the light emitted by the surrounding PCB lamp boards 7 into the light guide plate 6, then pass through the dust-proof plate 2, and irradiate onto the battery electrode plate. Then the light of the battery electrode plate can directly pass through the dust-proof plate 2 and the light guide plate 6 and enter the lens 5 and the detection camera 4.

[0042] The above has introduced in detail a planar shadowless light source device provided by the present invention. For those of ordinary skill in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A planar shadowless light source device, characterized in that, It includes a housing (1), a light-emitting body, and a dust-proof plate (2); The housing (1) is provided with an installation opening along its thickness direction. The light-emitting body is installed inside the housing (1). An embedding portion (101) is provided around the installation opening. The dust-proof plate (2) is matched with the embedding portion (101) and is flush with the first surface of the housing (1).

2. The planar shadowless light source device according to claim 1, wherein, The embedding portion (101) is an installation card slot, and the dust-proof plate (2) is fixedly embedded in the installation card slot.

3. The planar shadowless light source device according to claim 1, characterized in that, It further includes a light guide plate (6). The light guide plate (6) is installed inside the housing (1) and is located below the dust-proof plate (2). The light-emitting body is arranged around the light guide plate (6).

4. The planar shadowless light source device according to claim 3, characterized in that, The light-emitting body includes a plurality of PCB lamp boards (7); The plurality of PCB lamp boards (7) are arranged around the light guide plate (6).

5. The planar shadowless light source device according to claim 1, characterized in that, It further includes a control line. One end of the control line is electrically connected to the light-emitting body, and the other end of the control line passes through the housing (1).

6. The planar shadowless light source device according to claim 1, characterized in that, The housing (1) is further provided with installation holes.

7. A detection system, characterized in that, It includes a detection camera (4), a lens (5) connected to the detection camera (4), and a planar shadowless light source device according to any one of claims 1 to 6.

8. The detection system according to claim 7, characterized in that, The detection camera (4) is located on one side of the second surface of the planar shadowless light source device.

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