Frame load deformation quantity testing device

Abstract

The utility model discloses a frame load deformation quantity testing device. The frame load deformation quantity testing device comprises a reference part and a measuring part, the reference part is of a linear structure, the measuring part comprises a sliding part and a measuring scale, the sliding part is connected to the reference part in a sliding mode and can move in the length direction of the reference part, the measuring scale is connected to the sliding part, and the measuring scale can move in the length direction of the reference part. The scale extension direction of the measuring scale is perpendicular to the length direction of the reference component. According to the frame load deformation quantity testing device, the real deformation performance of a photovoltaic module frame under the stress condition after being used for a certain time can be visually represented, the real deformation quantity of the frame in a load test can be completed, and the frame deformation quantity under different load intensities can be measured; and data support is provided for frame quantitative analysis and novel frame structure optimization.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a frame load deformation variable testing device. Background Art

[0002] In the photovoltaic field, photovoltaic modules need to complete a 25-30-year power generation mission in various installation scenarios, so they need to meet specific wind and snow load requirements. Under the pressure of wind and snow loads, the frame of the photovoltaic module will deform. When the frame deformation reaches the limit, the frame will form irreversible deformation, tearing and other failure behaviors. The load test of existing photovoltaic modules generally uses power attenuation value and cell fragmentation / hidden cracks to judge whether it is qualified. There is no direct data on the frame deformation, making it difficult to complete quantitative analysis of the frame, and there is also a lack of data basis for the optimization of new frame structures. Utility Model Content

[0003] Based on this, it is necessary to provide a frame load deformation test device. The frame load deformation test device of the utility model can complete the real deformation of the photovoltaic module frame load test, can objectively evaluate the frame load performance and its impact on the photovoltaic module, intuitively measure the frame deformation of the photovoltaic module frame under different load intensities, increase the accuracy of the frame quantitative analysis, and provide strong data support for the optimization of the new frame structure.

[0004] An embodiment of the present application provides a frame load deformation amount testing device.

[0005] A frame load deformation testing device includes a reference component and a measuring component, wherein the reference component is a linear structure, and the measuring component includes a sliding member and a measuring ruler, wherein the sliding member is slidably connected to the reference component and can move along the length direction of the reference component, and the measuring ruler is connected to the sliding member, and the scale extension direction of the measuring ruler is perpendicular to the length direction of the reference component.

[0006] In some embodiments, the measuring component has a hollow sliding channel, the sliding channel extends along the length direction of the measuring component, and the sliding member is disposed in the sliding channel and can move along the sliding channel.

[0007] In some embodiments, the measuring component is flat, and the sliding channel passes through two surfaces of the measuring component in the thickness direction.

[0008] In some embodiments, the sliding member is in the shape of an elongated strip, and both ends of the sliding member in the length direction respectively have a clamping groove, and the sliding member is clamped on the inner edge of the sliding channel through the clamping grooves at both ends.

[0009] In some embodiments, the sliding member is in the form of an elongated strip, and the two ends of the sliding member in the length direction are rotatably connected to rollers respectively. The inner wall of the sliding channel along the length direction has a limiting groove, and the roller is located in the limiting groove and can move in the limiting groove.

[0010] In some embodiments, the sliding member can be flipped and rotated relative to the reference component so that the measuring ruler is retracted into the reference component.

[0011] In some embodiments, the minimum measuring unit of the scale of the measuring ruler is 0.5 mm or 1 mm;

[0012] And / or, the measuring scale has a measuring range of 0 to 300 mm.

[0013] In some embodiments, the measuring ruler is slidably connected to the sliding member, and the measuring ruler can move relative to the sliding member along a length direction perpendicular to the reference component.

[0014] In some embodiments, the measuring component further includes a limiter, which is mounted on the sliding member and is used to fix the position of the measuring ruler.

[0015] In some embodiments, the reference component is a metal plate or an alloy plate.

[0016] The above-mentioned frame load deformation test device can intuitively characterize the actual deformation performance of the photovoltaic module frame under stress after a certain period of use, can complete the actual deformation of the frame in the load test, and can measure the deformation of the frame under different load intensities, providing real load evaluation results for quantitative analysis of the frame and optimization of new frame structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0018] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0019] Figure 1 This is a schematic diagram of a frame load deformation amount testing device according to an embodiment of the utility model;

[0020] Figure 2It is a schematic diagram of another angle of the frame load deformation amount testing device according to one embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the measuring components of the frame load deformation amount testing device according to an embodiment of the utility model;

[0022] Figure 4 Schematic diagram of a measuring ruler of a frame load deformation amount testing device according to an embodiment of the utility model.

[0023] Description of Reference Numerals

[0024] 10. Frame load deformation test device; 100. Reference component; 101. Sliding channel; 200. Measuring component; 210. Sliding member; 220. Measuring ruler; 230. Roller; 240. Limiting member. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, 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", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0027] In the present invention, 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] The embodiment of the present application provides a frame load deformation test device 10 to solve the problem that the load test of photovoltaic modules in the traditional technology generally uses power attenuation value and cell fragmentation / hidden cracking to judge whether it is qualified, and there is no direct data support for the frame deformation, which makes it difficult to complete the quantitative analysis of the frame and the optimization of the new frame structure. The frame load deformation test device 10 will be described below in conjunction with the accompanying drawings.

[0032] The frame load deformation amount testing device 10 provided in the embodiment of the present application is exemplary, see Figure 1 As shown, Figure 1 The schematic diagram of the structure of the frame load deformation test device 10 provided in the embodiment of the present application is as follows: The frame load deformation test device 10 of the present application can be used to directly test the frame load deformation of the frame of the photovoltaic module.

[0033] In order to more clearly illustrate the structure of the frame load deformation variable testing device 10, the frame load deformation variable testing device 10 will be introduced below with reference to the accompanying drawings.

[0034] For example, see Figure 1As shown, a frame load deformation test device 10 includes a reference component 100 and a measuring component 200. The reference component 100 is a linear structure, and the reference component 100 is used for horizontal positioning to provide a horizontal reference for measurement. The measuring component 200 includes a sliding member 210 and a measuring ruler 220. The sliding member 210 is slidably connected to the reference component 100 and can move along the length direction of the reference component 100. The measuring ruler 220 is connected to the sliding member 210, and the measuring ruler 220 can follow the sliding member 210 to move along the length direction of the reference component 100 to measure the frame deformation at different positions. After measuring multiple deformation data, the maximum value can be taken as the frame load deformation. The scale extension direction of the measuring ruler 220 is perpendicular to the length direction of the reference component 100.

[0035] In some of these embodiments, see Figure 1 and Figure 2 As shown, Figure 2 This is another angle diagram of the frame load deformation test device 10 of one embodiment of the utility model, the measuring component 200 has a hollow sliding channel 101. The sliding channel 101 extends along the length direction of the measuring component 200. The sliding member 210 is arranged in the sliding channel 101 and can move along the sliding channel 101. The design of the hollow sliding channel 101 can reduce the material cost on the one hand, and on the other hand, the sliding member 210 can be arranged in the sliding channel 101, reducing the space occupied by the sliding member 210, making it easy to carry, and reducing the storage space of the entire frame load deformation test device 10.

[0036] In some embodiments, the measuring component 200 is flat. The sliding channel 101 penetrates through two surfaces of the measuring component 200 in the thickness direction.

[0037] In some of these embodiments, see Figure 3 As shown, Figure 3 The schematic diagram of the measuring component 200 of the frame load deformation test device 10 of an embodiment of the utility model is shown in FIG. The sliding member 210 is in a long strip structure. The two ends of the sliding member 210 in the length direction respectively have a card slot. The sliding member 210 is clamped to the inner edge of the sliding channel 101 through the card slots at both ends. The above embodiment realizes the cooperation between the sliding member 210 and the inner edge of the sliding channel 101 by setting the card slot, and realizes sliding, and has a simple structure and is easy to process.

[0038] In some embodiments, the sliding member 210 is in a long strip structure. The two ends of the sliding member 210 in the length direction are rotatably connected with rollers 230. The inner wall of the sliding channel 101 along the length direction has a limiting groove. The roller 230 is located in the limiting groove and can move in the limiting groove. The above embodiment realizes the movement of the sliding member 210 by setting the roller 230 and the limiting groove, and the structure is simple and easy to process.

[0039] In some embodiments, the sliding member 210 can be flipped and rotated relative to the reference component 100 so that the measuring ruler 220 is folded into the reference component 100. When in a non-measuring state, the sliding member 210 can be rotated so that the measuring ruler 220 is parallel to the reference component 100, so that the measuring ruler 220 is folded into the plane where the reference component 100 is located, thereby reducing the space occupied by the measuring ruler 220 and facilitating the carrying and storage of the entire frame load deformation amount testing device 10.

[0040] In some embodiments, in order to realize the flipping action of the sliding member 210, a matching piece can be provided, and the matching pieces are respectively provided on both sides of the sliding member 210, and the matching pieces are rotatably connected to the sliding member 210. Further, the matching piece can be provided with a corresponding card slot, and the matching piece is clamped on the inner edge of the sliding channel 101 through the card slot. The matching piece is rotatably connected with a roller 230, and the matching piece can slide in the limit groove by rolling. It can be seen that in this embodiment, by providing the matching piece, the sliding member 210 and the measuring ruler 220 can move in the length direction of the reference component 100, and can also flip and rotate relative to the reference component 100, so that the measuring ruler 220 can be rotated to be parallel to the reference component 100.

[0041] In some of these embodiments, see Figure 4 As shown, Figure 4 Schematic diagram of the measuring ruler 220 of the frame load deformation test device 10 according to an embodiment of the utility model. The minimum measuring unit of the measuring ruler 220 is 0.5 mm or 1 mm. The measuring range of the measuring ruler 220 is 0-300 mm. It is not difficult to understand that the minimum measuring unit of the measuring ruler 220 can also be other parameters, which can be set according to actual needs.

[0042] In some embodiments, the measuring ruler 220 is slidably connected to the sliding member 210 , and the measuring ruler 220 can move relative to the sliding member 210 along a direction perpendicular to the length of the reference component 100 .

[0043] In some embodiments, the measuring component 200 further includes a limiter 240. The limiter 240 is mounted on the sliding member 210, and is used to limit and fix the position of the measuring ruler 220. For example, the limiter 240 is movably connected to the sliding member 210, and the limiter 240 can move to abut against the measuring ruler 220. When the limiter 240 abuts against the measuring ruler 220, the movement of the measuring ruler 220 can be limited, wherein the movement of the limiter 240 can be operated by an operator. Figure 3As shown, there are two limit members 240, and the two limit members 240 are respectively located on the left and right sides of the measuring ruler 220. When the two limit members 240 move toward the measuring ruler 220, the two limit members 240 can limit the measuring ruler 220.

[0044] In some embodiments, the reference component 100 can be made of a material that satisfies manufacturing accuracy and measurement stability. For example, the reference component 100 is a metal plate, an alloy plate, or a composite plate made of a composite material. For example, the reference component 100 is an iron plate, an aluminum alloy plate, a composite plate, etc. The metal plate, the alloy plate, and the composite plate can improve the structural strength of the reference component 100.

[0045] When used, the frame load deformation test device 10 comprises the following steps:

[0046] Place the reference component 100 at both ends of the frame deformation position, move the sliding member 210 of the measuring component 200 to the vicinity of the frame deformation center position, and adjust the limiter 240 to extend the measuring ruler 220 to a suitable measuring position. After measuring one of the deformation data, move the sliding member 210 to the left and right sides of the deformation center position. The moving distance of the sliding member 210 is between 5mm and 20mm, and the specific movement can be performed according to actual needs. After moving the sliding member 210, measure at least one deformation data on the left and right sides of the deformation center position respectively. After measuring no less than 3 values, take the maximum value as the deformation variable test value to obtain the frame load deformation variable. The load deformation variable can provide data support for quantitative analysis of the frame and optimization of new frame structures.

[0047] To sum up, the frame load deformation testing device 10 of the present application can intuitively characterize the actual deformation performance of the photovoltaic module frame under stress after a certain period of use, can complete the actual deformation of the frame in the load test, and measure the deformation of the frame under different load intensities, providing data support for quantitative analysis of the frame and optimization of new frame structures.

[0048] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A frame load deformation test device (10), characterized in that: The invention comprises a reference component (100) and a measuring component (200), wherein the reference component (100) is in a linear structure, and the measuring component (200) comprises a sliding member (210) and a measuring ruler (220), wherein the sliding member (210) is slidably connected to the reference component (100) and is capable of moving along the length direction of the reference component (100), and the measuring ruler (220) is connected to the sliding member (210), and the scale extension direction of the measuring ruler (220) is perpendicular to the length direction of the reference component (100).

2. The frame load deformation testing device (10) according to claim 1, characterized in that: The measuring component (200) has a hollow sliding channel (101), the sliding channel (101) extends along the length direction of the measuring component (200), and the sliding member (210) is arranged in the sliding channel (101) and can move along the sliding channel (101).

3. The frame load deformation amount testing device (10) according to claim 2, characterized in that: The measuring component (200) is flat, and the sliding channel (101) passes through two surfaces of the measuring component (200) in the thickness direction.

4. The frame load deformation testing device (10) according to claim 2, characterized in that: The sliding member (210) is in the form of a long strip, and has respective clamping grooves at both ends of the length direction of the sliding member (210). The sliding member (210) is clamped on the inner edge of the sliding channel (101) through the clamping grooves at both ends.

5. The frame load deformation testing device (10) according to claim 2, characterized in that: The sliding member (210) is in the form of an elongated strip, and the two ends of the sliding member (210) in the length direction are rotatably connected to rollers (230) respectively. The inner wall of the sliding channel (101) along the length direction has a limiting groove, and the roller (230) is located in the limiting groove and can move in the limiting groove.

6. The frame load deformation amount testing device (10) according to claim 1, characterized in that: The sliding member (210) can be flipped and rotated relative to the reference component (100) so that the measuring ruler (220) is retracted into the reference component (100).

7. The frame load deformation test device (10) according to any one of claims 1 to 6, characterized in that: The minimum measuring unit of the scale of the measuring ruler (220) is 0.5 mm or 1 mm; And / or, the measuring ruler (220) has a measuring range of 0 to 300 mm.

8. The frame load deformation test device (10) according to any one of claims 1 to 6, characterized in that: The measuring ruler (220) is slidably connected to the sliding member (210), and the measuring ruler (220) can move relative to the sliding member (210) along a length direction perpendicular to the reference component (100).

9. The frame load deformation amount testing device (10) according to claim 8, characterized in that: The measuring component (200) further comprises a position-limiting member (240), wherein the position-limiting member (240) is mounted on the sliding member (210), and the position-limiting member (240) is used to fix the position of the measuring ruler (220).

10. The frame load deformation test device (10) according to any one of claims 1 to 6 and 9, characterized in that: The reference component (100) is a metal plate or an alloy plate.

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