Photovoltaic module testing equipment

Abstract

The present application discloses a photovoltaic component detection device, comprising a frame, a detection system disposed above the frame, and a driving system for driving the frame to move; the detection system comprises a main body disposed above the frame, a light strip assembly disposed on the main body, an image acquisition device, and an electronic control unit electrically connected to the light strip assembly and the image acquisition device; the light strip assembly comprises a main body and a light-emitting body assembled on the main body, the main body comprises a base and an assembly portion extending vertically upward from both ends of the base, a heat dissipation system is disposed on the main body, the heat dissipation system comprises a heat dissipation plate and a fan; the heat dissipation plate comprises side walls and a top wall to form a heat dissipation channel, and the fan is disposed in the heat dissipation channel. The present application provides a heat dissipation system on the light strip assembly, and utilizes the cooperation of the heat dissipation channel and the fan to achieve the purpose of rapid heat dissipation, so that the detection device works in a reliable internal environment, thereby improving its safety and reliability.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic power station detection, and in particular to a photovoltaic module detection device. Background Art

[0002] Defect detection of photovoltaic modules is the basis and reference for the operation and maintenance of photovoltaic power stations. Today's precision testing equipment is usually equipped with high-power lighting components. The testing equipment is usually a relatively closed device to prevent the electrical components of the equipment from being affected by the natural environment of wind, rain, snow and dust. This requires that the testing equipment must have a good heat dissipation design to improve the stability and reliability of the testing equipment. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a photovoltaic module detection device with good heat dissipation effect, low cost and simple structure.

[0004] In order to solve the above technical problems, the present application provides a photovoltaic component detection device, including a frame, a detection system arranged above the frame and a driving system for driving the frame to move; the detection system includes a main body arranged above the frame, a light strip assembly arranged on the main body, an image acquisition device and an electronic control unit electrically connected to the light strip assembly and the image acquisition device; the light strip assembly is provided with a plurality of light sources that can be detachably assembled with each other, each of the light sources includes a main body made of metal material and a light emitting body assembled on the main body, the main body includes a base and an assembly part extending vertically upward from both ends of the base, the bottom surface of the base is provided with a receiving part for receiving the light emitting body, a heat dissipation system is provided on the main body, and the heat dissipation system includes a heat dissipation plate and a fan; the heat dissipation plate includes side walls and a top wall to form a heat dissipation channel, the fan is arranged in the heat dissipation channel, and the thickness of the heat dissipation plate is 0.5mm≤d≤1.5 mm, the main body includes a crossbeam and a column supporting the crossbeam, the crossbeam and the column are both profiles, the crossbeam includes a first crossbeam located at the upper layer and a second crossbeam located at the lower layer, the light strip assembly includes a first light strip assembly and a second light strip assembly relatively arranged on the second crossbeam, the distance between the second crossbeam and the first crossbeam is h1, and the distance between the second crossbeam and the frame is h2, wherein h2

[0005] ​Furthermore, the bottom end of the side wall is fitted and fixed to the side surface of the base.

[0006] Furthermore, the inner surfaces of the bottom ends of the two side walls of the heat dissipation plate are provided with thermal conductive adhesive which is adhered and fixed to the side surfaces of the base.

[0007] Furthermore, two side walls of the heat dissipation plate are provided with wavy curved surfaces bent along the extension direction thereof.

[0008] Furthermore, the side wall of the heat sink is formed by bending the top wall downward, and an arc-shaped transition portion is formed at the connection between the top wall and the side wall. The fan includes a shell and fan blades arranged in the shell. A fixing bracket is assembled on the shell, and the fixing bracket is assembled on the top wall.

[0009] Furthermore, the fan includes a shell and fan blades arranged in the shell, a fixing bracket is assembled on the shell, and the fixing bracket is assembled on the base.

[0010] Furthermore, the light emitting body is an LED lamp using a near-infrared light source, and the wavelength of the near-infrared light source is 950nm≤λ≤1080nm.

[0011] Compared with the prior art, the present application has the following beneficial effects: by arranging a heat dissipation system on the light strip assembly, the heat dissipation channel formed by the heat dissipation system cooperates with the fan to achieve the purpose of quickly dissipating the heat generated by the light strip assembly, which is conducive to the detection equipment working in a reliable internal environment and improves the safety and reliability of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of an assembly of a photovoltaic module detection device according to an exemplary embodiment;

[0013] Figure 2 is a partially assembled schematic diagram of a photovoltaic module testing device according to an exemplary embodiment;

[0014] Figure 3 is a perspective exploded schematic diagram of a heat dissipation system of an exemplary embodiment;

[0015] Figure 4 is a perspective exploded schematic diagram of a heat dissipation system of another exemplary embodiment;

[0016] Figure 5 It is a schematic three-dimensional diagram of a light source in an exemplary embodiment.

[0017] Reference Numbers

[0018] 100- Photovoltaic module testing equipment,

[0019] 1- Frame,

[0020] 2-main body, 20-first beam, 21-second beam,

[0021] 22-column, 23-main board,

[0022] 3- Drive system,

[0023] 4-light strip assembly, 40-first light strip assembly, 41-second light strip assembly,

[0024] 42-body, 420-base, 421-assembly part, 422-assembly hole,

[0025] 43- storage part, 44- light source, 45- filter,

[0026] 5- heat dissipation system, 50- heat dissipation plate, 501- side wall, 502- top wall,

[0027] 503-wavy surface, 504-transition part, 51-fan, 52-heat dissipation channel,

[0028] 53-thermal conductive adhesive, 54-fixing bracket, 541-first assembly part, 542-second assembly part,

[0029] 5410-first screw hole, 5420-second screw hole, 55-heat dissipation hole,

[0030] 6-assembly part, 60-limiting body, 61-first locking part,

[0031] 7-Electronic control unit, 8-Silicon-based camera. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 ordinary technicians in this field without making creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is sought, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, it should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0035] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically limited. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] Please refer to Figures 1 to 5 As shown, the present application provides a photovoltaic module detection device 100, including a frame 1, a detection system arranged above the frame 1, and a driving system 3 for driving the frame 1 to move. The detection system includes a main body 2 arranged above the frame 1, a light strip assembly 4 arranged on the main body 2, an image acquisition device, and an electronic control unit 7 electrically connected to the light strip assembly 4 and the image acquisition device. The light strip assembly 4 includes a main body 42 and a light emitting body 44 assembled on the main body, the main body 42 includes a base 420 and an assembly portion 421 extending vertically upward from both ends of the base 420, and a heat dissipation system 5 is provided on the main body 42, and the heat dissipation system 5 includes a heat dissipation plate 50 and a fan 51; the heat dissipation plate 50 includes a side wall 501 and a top wall 502 to form a heat dissipation channel 52, and the fan 51 is arranged in the heat dissipation channel 52. By arranging the heat dissipation system 5 on the light strip assembly 4 of the detection device, the overall heat dissipation performance of the detection device is enhanced, ensuring that the working environment of each electronic component of the detection device is relatively stable during operation, and improving the safety and reliability of product use. In the present application, the image acquisition device is a silicon-based camera 8, and the frame 1 is made of aluminum. The drive system 3 includes a drive motor, a gear set rotatably connected to the drive motor, and a crawler meshing with the gear set. By using the gear set and crawler to cooperate, the national standard requirement of the pressure P≤5400pa of the photovoltaic module under any operation of the detection equipment is met, ensuring the safety of product use; at the same time, the friction between the crawler and the photovoltaic panel assembly is used to avoid the phenomenon of sliding down the slope, ensuring that the trolley can adapt to various types of power stations.

[0039] In order to ensure that the heat dissipation system 5 can quickly dissipate the heat generated by the light strip assembly 4 when it is working, the bottom end of the side wall 501 is fixed to the side of the base 420 so that the heat can be quickly dissipated to the external environment through the heat dissipation channel 52. The fixing includes but is not limited to fixing by gluing, fixing by screws, or fixing by gluing followed by screws.

[0040] In one embodiment, the inner surfaces of the bottom ends of the two side walls of the heat sink 50 are provided with thermal conductive adhesive 53 and are bonded and fixed to the sides of the base 420. Using thermal conductive adhesive to bond and fix the heat sink to the base of the body can further accelerate the heat transfer of the light strip assembly and improve the heat dissipation efficiency.

[0041] In one embodiment, the side wall 501 of the heat dissipation plate 50 is formed by bending the top wall 502 downward, and an arc-shaped transition portion 504 is formed at the connection between the top wall 502 and the side wall 501. The fan 51 includes a housing and a fan blade disposed in the housing, and a fixing bracket 54 is assembled on the housing, and the fixing bracket 54 is assembled on the top wall 502. The fixing bracket 54 includes a first assembly portion 541 fixedly assembled with the housing and a second assembly portion 542 fixedly assembled with the top wall 502, and the first assembly portion 541 and the second assembly portion 542 form an L-shaped component. The first assembly portion 541 is provided with a first screw hole 5410, and the fixing bracket 54 is assembled on the housing by a first screw passing through the first screw hole 5410, and the second assembly portion 542 is provided with a second screw hole 5420, and the fixing bracket 54 is assembled on the top wall 502 of the heat dissipation plate 50.

[0042] To further increase the heat dissipation area of ​​the heat dissipation channel 52, in an exemplary embodiment, the two side walls of the heat dissipation plate 50 are provided with wavy curved surfaces 503 bent along their extension direction. The wavy curved surfaces 503 not only increase the heat dissipation area of ​​the heat dissipation channel 52, but also enhance the overall strength of the heat dissipation plate 50.

[0043] In another embodiment, the fan 51 includes a housing and a fan blade disposed in the housing, and a fixing bracket 54 is assembled on the housing, and the fixing bracket 54 is assembled on the base 420 or the assembly portion 421. Assembling the fan on the base or assembly portion of the body through the fixing bracket can reduce the requirements for the overall strength of the heat sink to a certain extent. Specifically, the thickness of the heat sink can be made into 0.5mm, which is conducive to reducing the weight of the heat sink. In this application, the heat sink is made of copper. In order to reduce the overall weight of the detection equipment, the weight of the heat sink is as light as possible.

[0044] Taking into account the balance between the strength requirement and the weight of the heat sink, in different embodiments, the thickness of the heat sink described in this application can be selected to be 0.5 mm ≤ d ≤ 1.5 mm.

[0045] The main body 2 includes a crossbeam and a column 22 supporting the crossbeam, and the crossbeam and the column are both profiles. The crossbeam includes a first crossbeam 20 located at the upper layer and a second crossbeam 21 located at the lower layer, and the light strip assembly 4 includes a first light strip assembly 40 and a second light strip assembly 41 relatively arranged on the second crossbeam 21, and the first light strip assembly 40 and the second light strip assembly 41 have the same structural arrangement. Specifically, an assembly hole 422 is provided on the assembly portion 421, and the assembly portion 421 is detachably assembled on the second crossbeam 21 through an assembly member 6. The assembly member 6 includes a limit body 60 and a first locking member 61 and a second locking member assembled with the limit body 60; the first locking member 61 is assembled and fixed to the assembly portion 421 of the light source body, and the second locking member is assembled and fixed to the second crossbeam 21.

[0046] The distance between the second crossbeam 21 and the first crossbeam 20 is h1, and the distance between the second crossbeam 21 and the frame 1 is h2, wherein h2

[0047] The bottom surface of the base 420 is provided with a receiving portion 43 for receiving the luminous body 44. The luminous body 44 is an LED lamp using a near-infrared light source, and the wavelength of the near-infrared light source is 950nm≤λ≤1080nm. The LED lamp can be well fixed by providing the receiving portion 43. By using near-infrared light as the incident light source, it is easy to find defects such as hidden cracks deep inside the photovoltaic cell by taking advantage of its good penetration into the photovoltaic cell.

[0048] ​The first crossbeam 20 is provided with a main body plate 23, the image acquisition device is a plurality of silicon-based cameras 8 arranged at intervals, the electric control unit 7 and the silicon-based camera 8 are assembled on the main body plate 23, and the projections of the plurality of silicon-based cameras 8 are located in the middle of the plane where the first light strip assembly 40 and the second light strip assembly 41 are located; a baffle is provided on the outside of the column 22, and a heat dissipation through hole 55 is provided at the position opposite to the heat dissipation channel 52 of the baffle, and a filter 45 is provided outside the heat dissipation through hole 55. The baffle can prevent pollutants and rain and snow in the natural environment from causing damage to the inside of the detection equipment, and ensure the safety and service life of the detection equipment. By providing the heat dissipation through hole 55, the hot air blown out of the heat dissipation channel 52 can be quickly discharged to the external environment to achieve the purpose of rapid heat dissipation, and the filter 45 can prevent foreign matter from entering. In order to prevent the electric control unit 7, the silicon-based camera 8, etc. from being exposed to the outside and being eroded by the natural environment, in the embodiment of the present application, the electric control unit 7 and the silicon-based camera 8 are respectively provided with a protective shell assembled on the main body plate 23. The main body plate 23 is made of carbon fiber plate material to control the overall weight of the detection device.

[0049] As a preferred embodiment, the light strip assembly 4 can be provided with a plurality of light sources that can be detachably assembled with each other. Each of the light sources includes a main body 42 made of a metal material and a light-emitting body 44 assembled on the main body 42. The main body 42 includes a base 420 and an assembly portion 421 extending vertically upward from both ends of the base 420. The assembly portions 421 of any two adjacent light sources are assembled and fixed by fasteners so that a light-emitting body 44 can be replaced after a failure, thereby reducing costs. Each of the assembly portions 421 is provided with at least two assembly holes 422, and the assembly portions 421 of the two adjacent light sources are assembled and fixed together by means of fasteners, i.e., bolts and nuts passing through the assembly holes 422.

[0050] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A photovoltaic module detection device, characterized in that: The invention comprises a frame, a detection system arranged above the frame and a driving system for driving the frame to move; the detection system comprises a main body arranged above the frame, a light strip assembly arranged on the main body, an image acquisition device and an electric control unit electrically connected to the light strip assembly and the image acquisition device; the light strip assembly is provided with a plurality of light sources that can be detachably assembled with each other, each of the light sources comprises a main body made of metal material and a light emitting body assembled on the main body, the main body comprises a base and an assembly portion extending vertically upward from both ends of the base, the bottom surface of the base is provided with a receiving portion for receiving the light emitting body, a heat dissipation system is provided on the main body, and the heat dissipation system comprises a heat dissipation plate and a fan; the heat dissipation plate comprises side walls and a top wall to form a heat dissipation channel, the fan is arranged in the heat dissipation channel, the thickness of the heat dissipation plate is 0.5mm≤d≤1.5mm, the main body comprises a crossbeam and a support The upright posts supporting the crossbeam, the crossbeam and the upright posts are both profiles, the crossbeam comprises a first crossbeam located at the upper layer and a second crossbeam located at the lower layer, the light strip assembly comprises a first light strip assembly and a second light strip assembly relatively arranged on the second crossbeam, the distance between the second crossbeam and the first crossbeam is h1, the distance between the second crossbeam and the frame is h2, wherein h2<h1, the height difference between the top wall of the heat sink and the first crossbeam is 1 / 2h1≤h3≤2 / 3h1, a main body plate is provided on the first crossbeam, the image acquisition device is a plurality of silicon-based cameras arranged at intervals, the electronic control unit and the silicon-based camera are assembled on the main body plate, the projections of the plurality of silicon-based cameras are located in the middle of the plane where the first light strip assembly and the second light strip assembly are located; a baffle is provided on the outer side of the upright post, a heat dissipation through hole is provided at a position of the baffle relative to the heat dissipation channel, and a filter is provided outside the through hole.

2. The detection device according to claim 1, characterized in that: The bottom end of the side wall is fitted and fixed to the side surface of the base.

3. The detection device according to claim 1, characterized in that: The inner surfaces of the bottom ends of the two side walls of the heat dissipation plate are provided with heat-conducting glue which is adhered and fixed to the side surfaces of the base.

4. The detection device according to claim 3, characterized in that: The two side walls of the heat dissipation plate are provided with wavy curved surfaces bent along the extension direction thereof.

5. The detection device according to any one of claims 1 to 4, characterized in that: The side wall of the heat sink is formed by bending the top wall downward, and an arc-shaped transition portion is formed at the connection between the top wall and the side wall. The fan includes a shell and fan blades arranged in the shell. A fixing bracket is assembled on the shell, and the fixing bracket is assembled on the top wall.

6. The detection device according to any one of claims 1 to 4, characterized in that: The fan comprises a shell and fan blades arranged in the shell. A fixing bracket is assembled on the shell, and the fixing bracket is assembled on the base.

7. The detection device according to claim 1, characterized in that: The luminous body is an LED lamp using a near-infrared light source, and the wavelength of the near-infrared light source is 950nm≤λ≤1080nm.

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