CN220586252U - Photovoltaic module detection equipment - Google Patents

Abstract

The utility model relates to a photovoltaic module detection device, comprising: a frame body; the reflecting piece is arranged on the frame body and provided with a bottom wall, a side wall, a top wall and a reflecting part, the top wall is provided with an avoidance channel, and the reflecting part is connected to the top wall and opposite to the side wall so as to form a first reflecting space together with the top wall and the side wall; a light source positioned below the top wall and at least partially positioned in the first reflective space; and an appearance camera provided with a lens and opposite to the avoidance channel. The light reflection part can block the light rays which are directly emitted to the photovoltaic module by the light source, and the light rays reach the surface of the photovoltaic module after being reflected for multiple times among the light reflection part, the top wall, the side wall and the bottom wall. Therefore, the light which is supposed to be intensively irradiated on a small area of the photovoltaic module in a direct irradiation mode is scattered to a wider area on the photovoltaic module after being reflected for multiple times, so that the surface of the photovoltaic module is illuminated, and meanwhile, bright spots on the surface of the photovoltaic module are avoided.

Description

Photovoltaic module detection equipment

Technical Field

The utility model relates to the technical field of photovoltaic module production, in particular to photovoltaic module detection equipment.

Background

Various defects can occur in the production and handling process of the photovoltaic module. In conventional photovoltaic module inspection apparatuses, defects on photovoltaic modules are generally inspected using an appearance camera and an EL (electroluminescence) camera. The appearance camera is used for detecting visible dominant defects of the photovoltaic module, and the EL camera is used for detecting invisible recessive defects of the photovoltaic module. By observing or processing the images shot by the appearance camera and the EL camera, the information of the photovoltaic module can be obtained to judge whether and what defects exist in the photovoltaic module.

Conventional photovoltaic module inspection devices typically incorporate a light source to provide a good illumination environment for the appearance camera, thereby enabling the appearance camera to better capture details and defects of the photovoltaic module. However, the materials of the front and back sides of the photovoltaic module are typically tempered glass, and thus, the front and back sides of the photovoltaic module are typically reflective. When light emitted by a light source is directly transmitted to the front side or the back side of the photovoltaic module, the photovoltaic module can generate obvious reflection phenomena, bright light spots appear on the surface of the photovoltaic module, so that very bright light spots appear in a photo shot by an appearance camera, the appearance information of the photovoltaic module in the light spot area cannot be known, whether the part of the photovoltaic module in the light spot area has dominant defects or not cannot be judged, and adverse effects are brought to the detection of the photovoltaic module.

Disclosure of Invention

Based on this, it is necessary to provide a photovoltaic module inspection apparatus in view of the above-described problems. The photovoltaic module detection equipment can avoid light spots on the surface of the photovoltaic module in the process of detecting the photovoltaic module, so that the appearance camera can acquire the information of the whole photovoltaic module, and further complete detection of the whole photovoltaic module is realized.

In order to solve the problems, the utility model provides the following technical scheme:

a photovoltaic module inspection apparatus comprising: a frame body; the light reflecting piece is arranged on the frame body and is provided with a bottom wall, a side wall, a top wall and a light reflecting part, the top wall is provided with an avoidance channel, and the light reflecting part is connected to the top wall and is opposite to the side wall so as to form a first light reflecting space together with the top wall and the side wall; a light source located below the top wall and at least partially within the first reflective space; and an appearance camera provided with a lens and opposite to the avoidance channel.

In one embodiment, the light reflecting part has a reflecting layer facing the light source for reflecting light; and/or the top wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for reflecting light rays; and/or the side wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for reflecting light rays; and/or the bottom wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for reflecting light rays.

In one embodiment, the light reflecting portion has a reflecting layer facing the light source for diffuse reflection; and/or the top wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for carrying out diffuse reflection; and/or the side wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for carrying out diffuse reflection; and/or the bottom wall is provided with a reflecting layer, and the reflecting layer faces the light source and is used for carrying out diffuse reflection.

In one embodiment, the side wall and the bottom wall enclose a second reflective space, and the portion of the appearance camera except for the lens is located outside the second reflective space.

In one embodiment, the top wall, the side wall and the bottom wall each have a light blocking layer facing away from the light source, the light blocking layer being used for blocking external light.

In one embodiment, the lens is located in a space enclosed by the side wall and the bottom wall or penetrates through the bottom wall.

In one embodiment, the light source is mounted to the sidewall.

In one embodiment, the light source is a surface light source.

In one embodiment, the light source and the appearance camera are both provided with a plurality of light sources, and the arrangement direction of the plurality of light sources is the same as the arrangement direction of the plurality of appearance cameras.

In one embodiment, the light reflecting member comprises a plurality of light reflecting plates, and the light reflecting member is formed by splicing a plurality of light reflecting plates.

The utility model has at least the following beneficial effects:

in the photovoltaic module detection equipment provided by the utility model, the light reflecting part can block the light rays which are directly emitted to the photovoltaic module by the light source, and the light rays can reach the surface of the photovoltaic module after being reflected for multiple times among the light reflecting part, the top wall, the side wall and the bottom wall. Therefore, the light which is supposed to be intensively irradiated on a small area of the photovoltaic module in a direct irradiation mode is scattered to a wider area on the photovoltaic module after being reflected for multiple times, so that the surface of the photovoltaic module is illuminated, and meanwhile, bright spots on the surface of the photovoltaic module are avoided. Thus, the appearance camera can be ensured to acquire the appearance information of the whole photovoltaic module, and the whole detection of the whole photovoltaic module is realized.

Drawings

Fig. 1 is a schematic structural diagram of a photovoltaic module inspection apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a portion of the structure of fig. 1, including a reflector, a light source, and an appearance camera.

Reference numerals:

1. a frame body;

2. a light reflecting member; 21. a bottom wall; 22. a sidewall; 23. a top wall; 24. a light reflecting portion; 25. a first light reflecting space; 26. a second light reflecting space; 27. an avoidance channel; 28. a light reflecting plate;

3. a light source; 31. A first surface light source; 32. A second surface light source;

4. an appearance camera; 41. A lens;

5. a feeding unit; 51. A first conveyor belt;

6. a discharging unit; 61. a second conveyor belt;

7. and a shooting area.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and fig. 2 together, the photovoltaic module detection apparatus provided by the present utility model includes a frame 1, a light source 3, and an appearance camera 4. In the process of detecting the photovoltaic module by the photovoltaic module detecting equipment, the photovoltaic module is put on the frame body 1. The appearance camera 4 has a lens 41 and the lens 41 faces the photovoltaic module, thereby photographing the appearance of the photovoltaic module. The light source 3 is located below the frame 1 and in the frame 1, so as to provide illumination in a space surrounded by the photovoltaic module and the frame 1, and further illuminate one surface of the photovoltaic module facing the lens 41, so that the appearance camera 4 can better shoot details and defects of the photovoltaic module.

Referring to fig. 1 and 2, in order to prevent light emitted by a light source 3 from directly striking the surface of a photovoltaic module to cause a bright spot on a surface of the photovoltaic module facing an appearance camera 4, the photovoltaic module detection apparatus provided by the utility model further comprises a light reflecting member 2, wherein the light reflecting member 2 is arranged on a frame body 1. In the process of detecting the photovoltaic module, the photovoltaic module is located above the light reflecting member 2. The light reflecting member 2 has a bottom wall 21, a side wall 22, a top wall 23, and a light reflecting portion 24, wherein the light reflecting portion 24 is connected to the top wall 23 and opposite to the side wall 22 to enclose a first light reflecting space 25 together with the top wall 23 and the side wall 22, and the light source 3 is located below the top wall 23 and at least partially located in the first light reflecting space 25. Thus, the light reflecting portion 24 can block the light emitted from the light source 3 toward the photovoltaic module, and the light reaches the surface of the photovoltaic module after being reflected multiple times between the light reflecting portion 24, the top wall 23, the side wall 22, and the bottom wall 21. Therefore, the light which is supposed to be intensively irradiated on a small area of the photovoltaic module in a direct irradiation mode is scattered to a wider area on the photovoltaic module after being reflected for multiple times, so that the surface of the photovoltaic module is illuminated, and meanwhile, bright spots on the surface of the photovoltaic module are avoided. Thus, the appearance camera 4 can acquire the appearance information of the whole photovoltaic module, and the whole detection of the whole photovoltaic module is realized.

Referring to fig. 1 and 2, in order to allow the appearance camera 4 to capture the appearance of the photovoltaic module, the top wall 23 is provided with an avoidance channel 27, and the lens 41 is opposite to the avoidance channel 27. In the process of detecting the photovoltaic module, the photovoltaic module is located above the avoidance channel 27.

In the first embodiment of the utility model, the escape passage 27 is provided between the light reflecting portion 24 and the side of the light reflecting member 2 remote from the light source 3. In other words, the light reflecting portion 24 is located between the escape passage 27 and the first light reflecting space 25.

In the first embodiment, the light reflecting portion 24 has a reflecting layer that can reflect light, and the reflecting layer of the light reflecting portion 24 faces the light source 3. The color of the reflective layer surface is preferably other than black and brown to facilitate reflection of light by the reflective layer. Of course, in the first embodiment, one or more of the top wall 23, the side walls 22 and the bottom wall 21 may also have a reflective layer, which reflective layer or layers face the light source 3 in order to reflect light rays.

Preferably, in the first embodiment, the surface of the reflecting layer is a rough surface, so that the reflecting layer may be used for diffuse reflection, thereby uniformly reflecting light in all directions. The diffuse reflection effect enables light to be well distributed in the space enclosed by the photovoltaic module and the frame body 1, and bright light spots on the surface of the photovoltaic module are avoided. Moreover, after the light reaches the photovoltaic module, the light is reflected by the photovoltaic module towards all directions due to different incident angles of the light, so that bright spots on the surface of the photovoltaic module can be avoided.

Preferably, in the first embodiment, the surface of the reflecting layer is a curved surface with undulation, so that the reflecting layer can be used for scattering, and thus the light is reflected relatively uniformly along all directions. The scattering effect enables light to be well distributed in the space enclosed by the photovoltaic module and the frame body 1, and bright light spots on the surface of the photovoltaic module are avoided. Moreover, after the light reaches the photovoltaic module, the light is reflected by the photovoltaic module towards all directions due to different incident angles of the light, so that bright spots on the surface of the photovoltaic module can be avoided.

In some embodiments, the reflective layer surface may be divided into a plurality of portions, wherein: some of which are diffusely reflected, some of which are scattered in addition to diffusely reflected, and some of which are specularly reflected.

Referring to fig. 2, in the first embodiment of the present utility model, the side wall 22 and the bottom wall 21 define a second reflective space 26. In this way, the light emitted by the light source 3 can be reflected in the second reflective space 26 for multiple times under the reflection of the side wall 22 and the bottom wall 21 to reach the surface of the photovoltaic module, which is beneficial to improving the light utilization rate. The portion of the appearance camera 4 other than the lens 41 is located outside the second light reflecting space 26, whereby the portion (e.g., body) of the appearance camera 4 other than the lens 41 can be prevented from interfering with the light reflecting process in the second light reflecting space 26.

The first light reflecting space 25 defined by the light reflecting portion 24, the top wall 23 and the side wall 22 is a part of the second light reflecting space 26. In other words, the first light reflecting space 25 is partitioned from the second light reflecting space 26 by the top wall 23 and the light reflecting portion 24.

In some embodiments, the top wall 23, the side wall 22 and the bottom wall 21 each have a light blocking layer facing away from the light source 3 for blocking light from the outside. Thereby, the top wall 23, the side wall 22 and the bottom wall 21 can block most of the light from the outside the second light reflecting space 26, thereby preventing the outside light from interfering with the photographing imaging of the appearance camera 4.

Referring to fig. 1 and 2, in the first embodiment, in order to prevent external light from interfering with the lens 41, the lens 41 is located in the second reflective space 26 surrounded by the side wall 22 and the bottom wall 21. In other embodiments, the lens 41 may also penetrate the bottom wall 21, as long as the lens 41 is not located outside the reflector 2.

Referring to fig. 2, in the first embodiment, the appearance camera 4 is mounted on the bottom wall 21.

Referring to fig. 2, in the first embodiment, the light source 3 is mounted on the side wall 22.

The surface light source 3 can provide a relatively uniform illumination effect and can cover a relatively large area. Since the light is diffused by the surface light source 3, the light generated by the surface light source 3 is softer and there is no strong focusing effect. Preferably, referring to fig. 2, in the first embodiment, the light source 3 is a surface light source 3.

Referring to fig. 2, the light source 3 includes a first surface light source 31 and a second surface light source 32. The first surface light source 31 and the second surface light source 32 are both surface light sources 3, and the size of the second surface light source 32 is smaller than that of the first surface light source 31. The second surface light source 32 is closer to the light reflecting portion 24 than the first surface light source 31.

Referring to fig. 2, in order to better photograph the appearance of the photovoltaic module, in the first embodiment, the light source 3 and the appearance camera 4 are provided in plurality, and the arrangement direction of the plurality of light sources 3 and the arrangement direction of the plurality of appearance cameras 4 are the same.

Referring to fig. 2, in the first embodiment, in order to facilitate the production of the reflector 2, the reflector 2 includes a plurality of reflectors 28, and the reflector 2 is formed by splicing the plurality of reflectors 28. For example, the reflecting portion 24 and the bottom wall 21 are formed by splicing two reflecting plates 28. In addition, this also facilitates adjustment of the light reflecting effect of different areas of the light reflecting member 2, such as: the side of some of the reflectors 28 facing the light source 3 is roughened, the side of some of the reflectors 28 facing the light source 3 is rugged, and the side of some of the reflectors 28 facing the light source 3 is mirrored.

The connection between the appearance camera 4 and the bottom wall 21, the connection between the light source 3 and the side wall 22, the connection between the reflectors 28, and the connection between the reflector 2 and the frame 1 may be threaded connection or may be clamping connection, so long as the connection of the appearance camera 4 with the bottom wall 21, the connection of the light source 3 to the side wall 22, the interconnection of the reflectors 28, and the connection of the reflector 2 to the frame 1 can be ensured.

Referring to fig. 1, in the first embodiment, the photovoltaic module detecting apparatus further includes a feeding unit 5 and a discharging unit 6, a first conveyor belt 51 is disposed on the feeding unit 5, a second conveyor belt 61 is disposed on the discharging unit 6, and the first conveyor belt 51 and the second conveyor belt 61 are both used for conveying the photovoltaic module. Along photovoltaic module's direction of delivery, pan feeding unit 5, reflection of light piece 2, ejection of compact unit 6 set gradually in support body 1, and pan feeding unit 5 sets up with ejection of compact unit 6 interval in order to form in appearance camera 4 top and take a photograph district 7, dodges passageway 27 and take a photograph district 7 intercommunication. Along with the movement of the photovoltaic module, all parts of the photovoltaic module can reach a shooting area 7, the appearance camera 4 can shoot images of all parts of the photovoltaic module, and the images of all parts of the photovoltaic module are spliced to obtain a complete image of the whole photovoltaic module.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A photovoltaic module inspection apparatus, comprising:

a frame body (1);

the light reflecting piece (2) is arranged on the frame body (1) and is provided with a bottom wall (21), side walls (22), a top wall (23) and a light reflecting part (24), the top wall (23) is provided with an avoidance channel (27), and the light reflecting part (24) is connected to the top wall (23) and is opposite to the side walls (22) so as to form a first light reflecting space (25) together with the top wall (23) and the side walls (22);

-a light source (3) located below said top wall (23) and at least partially within said first light reflecting space (25); and

An appearance camera (4) is provided with a lens (41) which is opposite to the avoidance channel (27).

2. The photovoltaic module detection apparatus according to claim 1, characterized in that the light reflecting portion (24) has a reflecting layer facing the light source (3) for reflecting light rays; and/or the number of the groups of groups,

-said top wall (23) having a reflective layer facing said light source (3) for reflecting light rays; and/or the number of the groups of groups,

the side wall (22) has a reflective layer facing the light source (3) for reflecting light; and/or the number of the groups of groups,

the bottom wall (21) has a reflective layer facing the light source (3) for reflecting light.

3. The photovoltaic module detection apparatus according to claim 1, characterized in that the light reflecting portion (24) has a reflecting layer facing the light source (3) for diffuse reflection; and/or the number of the groups of groups,

-said top wall (23) has a reflective layer facing said light source (3) for diffuse reflection; and/or the number of the groups of groups,

the side walls (22) have a reflective layer facing the light source (3) for diffuse reflection; and/or the number of the groups of groups,

the bottom wall (21) has a reflective layer facing the light source (3) for diffuse reflection.

4. The photovoltaic module inspection apparatus according to claim 1, wherein the side wall (22) and the bottom wall (21) enclose a second light reflecting space (26), and the portion of the appearance camera (4) other than the lens (41) is located outside the second light reflecting space (26).

5. The photovoltaic module detection apparatus according to claim 1, characterized in that the top wall (23), the side wall (22) and the bottom wall (21) each have a light blocking layer facing away from the light source (3) for blocking external light.

6. The photovoltaic module inspection apparatus according to claim 5, wherein the lens (41) is located in a space enclosed by the side wall (22) and the bottom wall (21) or is penetrating through the bottom wall (21).

7. The photovoltaic module detection apparatus according to claim 1, characterized in that the light source (3) is mounted to the side wall (22).

8. The photovoltaic module detection apparatus according to claim 1, wherein the light source (3) is a surface light source (3).

9. The photovoltaic module detection apparatus according to claim 1, wherein the light source (3) and the appearance camera (4) are each provided in plural, and the arrangement direction of the plural light sources (3) and the arrangement direction of the plural appearance cameras (4) are the same.

10. The photovoltaic module detection apparatus according to claim 1, wherein the light reflecting member (2) includes a plurality of light reflecting plates (28), and the light reflecting member (2) is formed by splicing a plurality of the light reflecting plates (28).