Pressure-bearing testing device

Abstract

A pressure-bearing testing device is used for testing the pressure-bearing capacity of a photovoltaic module and comprises a supporting frame, a main shaft and a mounting frame. The main shaft is installed on the supporting frame, the installation frame is connected to the main shaft, and the side, away from the main shaft, of the installation frame is used for bearing a photovoltaic module. Wherein the mounting frame comprises two first supporting pieces and a second supporting piece, and the first supporting pieces are arranged in the axial direction of the main shaft in a spaced mode and mounted on the main shaft; the two ends of the second supporting piece are connected with the two first supporting pieces respectively so that the structural strength of the pressure-bearing testing device can be improved. The first supporting piece and the second supporting piece are used for jointly bearing the photovoltaic module, compared with the prior art that the photovoltaic module is only borne through a purline, the bearing capacity is higher, the structural stability of the pressure-bearing testing device in the testing process can be effectively improved, more pressure-bearing testing schemes can be achieved, the testing effect is good, and the testing cost is low.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a pressure testing device. Background Art

[0002] With the widespread use of photovoltaic systems and the increasing size and power of single-chip modules in photovoltaic systems, the requirements for the load-bearing capacity of photovoltaic brackets have also increased. However, most existing photovoltaic brackets use purlins to cooperate with the main shaft to support and fix the photovoltaic modules, and their overall strength is relatively low.

[0003] In addition, there are certain requirements for the pressure bearing capacity of photovoltaic modules, such as the structural stability of photovoltaic modules during use, the wind resistance of photovoltaic modules, the snow bearing capacity of photovoltaic modules, etc. In this regard, most test structures use purlins to cooperate with the main shaft to support and fix the photovoltaic modules, and the pressure bearing capacity is poor.

[0004] Therefore, how to improve the technical defects existing in the prior art has always been a problem that ordinary technicians in this field need to solve urgently. Utility Model Content

[0005] The purpose of this application is to provide a pressure testing device to improve the bearing capacity.

[0006] The technical solutions provided by this application are as follows:

[0007] A pressure test device, used to test the pressure bearing capacity of a photovoltaic module, comprising:

[0008] Support frame;

[0009] A main shaft, mounted on the support frame;

[0010] A mounting frame connected to the main shaft, and a side of the mounting frame facing away from the main shaft is used to carry the photovoltaic assembly;

[0011] The mounting frame includes a first support member and a second support member, there are two first support members, and the two first support members are arranged at intervals along the axial direction of the main shaft and installed on the main shaft; the two ends of the second support member are respectively connected to the two first support members to increase the structural strength of the pressure testing device.

[0012] In some embodiments, the second support member includes a first support plate and a second support plate that are perpendicular to each other;

[0013] The first support plate is connected to a side of the first support member facing the photovoltaic assembly, and the second support plate abuts against the first support member.

[0014] In some embodiments, there are two second support members, which are respectively disposed at two ends of the first support member.

[0015] In some embodiments, the first support member is a purlin;

[0016] The purlin is provided with a butt joint plate extending in the width direction of the purlin on both sides thereof, and the butt joint plate is fixed to the first supporting plate.

[0017] In some embodiments, the pressure testing device further comprises:

[0018] A third support member, wherein two ends of the third support member are detachably fixed to the two first support members respectively.

[0019] In some embodiments, the pressure testing device further comprises:

[0020] U-bolt assembly;

[0021] The U-bolt assembly comprises a U-bolt, a fastening nut and a U-bolt spacer;

[0022] The purlin is provided with at least two first mounting holes, the U-shaped bolt passes through the U-shaped bolt pad and the two first mounting holes and is fixed to the purlin via the fastening nut; the U-shaped bolt and the U-shaped bolt pad are jointly arranged to form a penetration space, and the end of the main shaft is installed in the penetration space.

[0023] In some embodiments, the support frame includes a support frame body and a pair of fixing seats provided on the support frame body, and both ends of the main shaft in the length direction are respectively installed on the fixing seats.

[0024] In some embodiments, the fixing seat includes a seat body and a connecting member;

[0025] The seat body comprises a first fixing plate and a side plate, wherein the first fixing plate is arranged on the top of the side plate;

[0026] The first fixing plate has a first concave surface, the connecting member has a second concave surface, and the first concave surface cooperates with the second concave surface to form a clamping space for accommodating the main shaft.

[0027] In some embodiments, first docking portions are provided on opposite sides of the first fixing plate, and second docking portions are provided on opposite sides of the connecting member; the first docking portions and the second docking portions are mated with each other to clamp the main shaft between the first fixing plate and the connecting member.

[0028] In some embodiments, a locking bolt is further provided on the fixing seat, and the locking bolt passes through the connecting member, the main shaft and the first fixing plate in sequence to fix the main shaft in the clamping space to limit the rotation of the main shaft.

[0029] The technical effects of this application are:

[0030] 1. The present application sets a first support member and a second support member to jointly support the photovoltaic module, which can effectively improve the bearing capacity of the pressure test device on the photovoltaic module, thereby improving the structural stability of the pressure test device during the test process, so that it can realize more pressure test schemes, with good test results, low test costs, and strong practicality.

[0031] 2. In the present application, there are two second support members, which are respectively arranged on both sides of the first support member. In this case, the two first support members and the two second support members can together form a frame structure to carry the photovoltaic module. In addition, the second support plates on the two second support members can clamp and fix the two ends of the first support member, which increases the strength of the installation frame structure and reduces the risk of deformation of the first support member due to external force.

[0032] 3. The installation frame provided in this application can also be used in photovoltaic brackets, which can improve the bearing capacity of photovoltaic brackets for photovoltaic modules and the structural stability of photovoltaic brackets to meet the performance requirements of most photovoltaic modules currently on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present application is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of a pressure test device provided by an embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of a mounting frame provided by an embodiment of the present application in a certain state;

[0036] Figure 3 is a schematic diagram of a three-dimensional structure of a mounting frame provided by an embodiment of the present application in another state;

[0037] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A shown;

[0038] Figure 5 is a front view of a mounting frame provided by an embodiment of the present application;

[0039] Figure 6 is a bottom view of a mounting frame provided by an embodiment of the present application;

[0040] Figure 7 is a side view provided by an embodiment of the present application;

[0041] Figure 8 yes Figure 7 The cross-sectional view along the AA direction;

[0042] Fig. 9 It is a schematic diagram of the three-dimensional structure of a fixing base provided in one embodiment of the present application.

[0043] Description of Figure Numbers:

[0044] 100, mounting frame; 110, first support member; 111, first docking plate; 112, second docking plate; 120, second support member; 121, first support plate; 122, second support plate; 130, third support member;

[0045] 210, U-bolt; 220, U-bolt spacer; 230, penetration space;

[0046] 300. Photovoltaic modules;

[0047] 400, spindle;

[0048] 500, fixed seat; 510, seat body; 511, first fixed plate; 5111, first concave surface; 5112, first docking portion; 512, side plate; 513, second fixed plate; 520, connecting member; 521, second concave surface; 522, second docking portion; 530, clamping space; 540, locking bolt;

[0049] 600, support frame body;

[0050] 701. Bolt; 702. Nut. DETAILED DESCRIPTION

[0051] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the specific implementation methods of the present application will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0053] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0054] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0055] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various devices of the present application are not absolute but relative. These descriptions are appropriate when these devices are in the positions shown in the drawings. If the descriptions of the positions of these devices change, the indications of these directions also change accordingly.

[0057] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0058] At present, in the pressure test system of photovoltaic brackets and photovoltaic modules, the pressure scheme adopts a structure that simulates the actual use of photovoltaic brackets for testing. The pressure test structure of this scheme is single and has limited pressure bearing capacity. When the test scheme needs to be adjusted, an additional set of pressure bearing structures is required, and the pressure test cost is high. The purpose of this application is to improve the pressure test structure of the simulated photovoltaic bracket so that it can meet various forms of testing needs.

[0059] In this regard, the present application provides a pressure test device for testing the pressure bearing capacity of the photovoltaic module 300. Figures 1 to 7 In one embodiment, the pressure testing device may specifically include a support frame, a main shaft 400 and an installation frame 100, the main shaft 400 is installed on the support frame, the installation frame 100 is connected to the main shaft 400, and the side of the installation frame 100 away from the main shaft 400 is used to support the photovoltaic component 300.

[0060] Among them, the mounting frame 100 includes a first support member 110 and a second support member 120. There are two first support members 110, and the two first support members 110 are arranged at intervals along the axial direction of the main shaft 400 and installed on the main shaft 400; the two ends of the second support member 120 are respectively connected to the two first support members 110 to increase the structural strength of the pressure testing device.

[0061] In this embodiment, the photovoltaic module 300 is jointly supported by the first support member 110 and the second support member 120, which can effectively improve the bearing capacity of the pressure test device for the photovoltaic module 300, thereby improving the structural stability of the pressure test device during the test. When it is necessary to apply a higher pressure to the photovoltaic module for testing, the pressure test device can still meet the requirements. In this way, the pressure test device of this embodiment can meet more pressure test solution requirements, with good test results and low test costs, and strong practicality.

[0062] Specifically, see Figure 1 , Figure 3 and Figure 4 The first support member 110 is a purlin, and two purlins are arranged at intervals on the main shaft 400, which can simulate the actual use structure of the photovoltaic bracket. The second support member 120 is an angle steel, including a first support plate 121 and a second support plate 122 arranged perpendicularly to each other. The first support plate 121 is connected to the side of the first support member 110 facing the photovoltaic assembly 300, and the second support plate 122 is abutted against the first support member 110. Among them, the angle steel is preferably made of one-piece molding.

[0063] On this basis, the number of the second support members 120 is preferably two, which are respectively arranged at the two ends of the first support member 110. At this time, the two angle steels and the two purlins can form an outer frame similar to the shape of a "mouth" to carry the photovoltaic module 300. Compared with the photovoltaic module 300 carried by the purlins used in the prior art, the mounting frame 100 including the two angle steels and the two purlins in this embodiment has a stronger bearing capacity and a simpler structure with low cost. The angle steel and the purlin are connected in a detachable fixed connection. Under the same pressure, it is possible to compare whether the photovoltaic module can meet the test requirements under the pressure test devices of different structures, which is convenient for adjusting the test plan for comparison.

[0064] In addition, in this embodiment, the first support plate 121 is sandwiched between the purlin and the photovoltaic module 300, and the second support plate 122 is pressed against the end of the purlin, which can improve the pressing effect of the angle steel on the end of the purlin to a certain extent. In this way, the two angle steels cooperate to clamp and fix the two ends of the purlin more stably; at the same time, the first support plate 121 and the second support plate 122 can also play a certain protective role on the two ends of the purlin in the length direction, reduce the risk of deformation of the purlin due to external force, improve the pressure bearing capacity of the purlin, and then improve the pressure bearing capacity of the installation frame 100, and the structural setting is reasonable and practical.

[0065] It is worth noting that the mounting frame 100 provided in this embodiment has higher structural strength and good stability, and at the same time, has low production cost and can be mass-produced and used. In addition to being used as a bearing structure in a pressure test device for a photovoltaic module 300, it improves the pressure bearing capacity of the pressure test system for the photovoltaic module 300 and the structural stability during the test, so that the pressure test system can implement more pressure test schemes; it can also be used as a bearing structure in a photovoltaic bracket, so that the photovoltaic bracket can meet the performance requirements of most photovoltaic modules 300 currently on the market, which is not limited here and is within the scope of protection of this application.

[0066] In a specific embodiment, see Figure 2 , Figure 3 and Figure 6 The two angle steels are arranged in parallel, and the two purlins are arranged in parallel, and the two angle steels and the two purlins together form a rectangular outer frame.

[0067] In this embodiment, see Figures 1 to 3 The pressure test device further includes a U-bolt assembly, which may include a U-bolt 210, a fastening nut and a U-bolt washer 220. Specifically, at least two first mounting holes are provided on the purlin, and the U-bolt 210 passes through the U-bolt washer 220 and any two first mounting holes on the purlin, and then fixes the purlin to the main shaft through the fastening nut.

[0068] Specifically, the U-bolt 210 and the U-bolt gasket 220 are together formed to enclose a penetration space 230, and the end of the main shaft 400 can be installed in the penetration space 230. In this embodiment, the U-bolt 210, the fastening nut and the U-bolt gasket 220 are provided to realize the assembly of the mounting frame 100 and the main shaft 400, thereby reducing the number of assembly parts and making disassembly and assembly more convenient. At the same time, in this embodiment, by adjusting the position of the fastening nut on the U-bolt 210, the size of the penetration space 230 can be changed, and the main shafts 400 of different sizes can be adapted, thereby improving the applicability of the mounting frame 100.

[0069] Preferably, the side of the U-bolt spacer 220 facing away from the purlin is adapted to the contour of the main shaft 400, which can increase the contact area between the mounting frame 100 and the main shaft 400, so that the overall structural stability of the assembled mounting frame 100 and the main shaft 400 is higher, and the main shaft 400 is not easily worn and has a longer service life.

[0070] In one example embodiment, see Figure 2 , Figure 3 and Figure 6 The pressure test device also includes a third support member 130, both ends of which are respectively fixed to the two purlins, which can further improve the structural strength of the installation frame 100 and reduce the risk of deformation of the purlins due to external forces.

[0071] Among them, the number of third support members 130 can be one, two, three, or even more, and the third support members 130 are connected to the purlins in a detachable connection manner. The assemblers can flexibly adjust the number of third support members 130 and the layout of the third support members 130 on the mounting frame 100 according to actual needs. No further details are given here, and they are all within the protection scope of this application.

[0072] Specifically, see Figure 2 , Figure 3 and Figure 6 The purlin is provided with a docking plate extending in the width direction of the purlin on both sides in the width direction. The docking plate is locked and fixed to the first support plate 121 by fasteners. The fasteners can be bolts 701, screws, etc., which will not be described in detail here, and are all within the protection scope of this application.

[0073] See also Figure 6 For the convenience of description, the butt joint plate provided on the side where the two purlins are close to each other is the first butt joint plate 122, and the butt joint plate provided on the side where the two purlins are far from each other is the second butt joint plate 123. When assembling the purlins and the angle steel, the first support plate 121 can be fixed to the first butt joint plates of the two purlins at the same time; it can also be fixed to the first butt joint plate, the second butt joint plate of one purlin and the first butt joint plate of the other purlin at the same time; or, it can be butt jointed and fixed to the first butt joint plate and the second butt joint plate of the two purlins at the same time, which will not be described one by one here, and all are within the protection scope of this application.

[0074] In actual production, the assembler first pre-installs the angle steel on the photovoltaic module 300. Then, the purlin is installed on the angle steel. Next, the crossbeam 150 is fixed on the purlin. Finally, the assembled mounting frame 100 and the photovoltaic module 300 are connected to the main shaft 400 by U-bolts 210, fastening nuts and U-bolt spacers 220, so as to realize the assembly of the mounting frame 100, the photovoltaic module 300 and the main shaft 400.

[0075] In this embodiment, only the first docking portion 5112 on the purlin is fixedly connected to the photovoltaic component 300, and the remaining portion is located outside the photovoltaic component 300. In this way, the assembler can rotate the fastening nut 603 from the side carrying the photovoltaic component 300 to install the main shaft 400 to the installation frame 100. The structural setting is reasonable and practical.

[0076] In one example embodiment, see Figure 1 and Figures 7 to 9 The support frame includes a support frame body 600 and a pair of fixing seats 500 disposed on the support frame body 600, and the two ends of the main shaft 400 in the length direction are respectively installed on the fixing seats 500. Among them, the main shaft 400 is preferably a D-shaped tube, and the support frame body 600 is made of aluminum profile.

[0077] For example, see Figures 7 to 9 The fixed seat 500 includes a seat body 510 and a connecting member 520. The seat body 510 further includes a first fixing plate 511 and a side plate 512. The first fixing plate 511 is arranged on the top of the side plate 512. The first fixing plate 511 has a first concave surface 5111 suitable for fitting the outer wall surface of the main shaft 400. The connecting member 520 has a second concave surface 521 suitable for fitting the outer wall surface of the main shaft 400. The first concave surface 5111 cooperates with the second concave surface 521 to form a clamping space 530 for accommodating the main shaft 400.

[0078] In this embodiment, the seat body 510 and the connecting member 520 are locked and connected to realize the clamping of the fixing seat 500 on the main shaft 400, and the installation is more convenient and quick. In addition, by providing the first concave surface 5111 and the second concave surface 521, the fixing seat 500 and the main shaft 400 can be more closely fitted after assembly, thereby improving the overall structural stability of the bearing bracket to a certain extent, and the main shaft 400 is not easily scratched during the assembly process, and has a longer service life.

[0079] Specifically, first docking portions 5112 are provided on opposite sides of the first fixing plate 511, and second docking portions 522 are provided on opposite sides of the connecting member 520. The first docking portion 5112 and the second docking portion 522 are mated with each other, and the main shaft 400 is clamped between the first fixing plate 511 and the connecting member 520. In addition, the seat body 510 may further include a second fixing plate 513, which is provided at the bottom of the side plate 512, and the side plate 512 is connected to the support frame body 600 through the second fixing plate 513.

[0080] Further, see Figures 7 to 9 A locking bolt 540 is also provided on the fixing seat 500 . The locking bolt 540 passes through the connecting member 520 , the main shaft 400 and the first fixing plate 511 in sequence to fix the main shaft 400 in the clamping space 530 to limit the rotation of the main shaft 400 .

[0081] In this embodiment, the first docking portion 5112 on the first fixing plate 511 and the second docking portion 522 on the connecting member 520 are preferably locked and fixed by bolts 701. In this way, when the assembler installs the main shaft 400 to the fixing seat 500, the assembler can first pre-position the main shaft 400 by tightening the nuts 702 on the bolts 701 on the first docking portion 5112 and the second docking portion 522, and then lock the main shaft 400 to the fixing seat 500 by the locking bolts 540, which is convenient for installation, more stable connection, and strong practicality. Among them, the locking bolts 540 can be specifically selected as M12x200 hexagonal bolts.

[0082] Specifically, the assembler first assembles the photovoltaic module 300 and the mounting frame 100 together; then, uses U-bolts 210, fastening nuts and U-bolt washers 220 to fix the assembled photovoltaic module 300 and the mounting frame 100 to the main shaft 400; then, uses fasteners to fix the seat body 510 to the aluminum profile support frame body 600, wherein the fastener is preferably a bolt 701, which is faster to install. In addition, before using the fastener to lock the seat body 510, it is necessary to ensure that the seat body 510 has no horizontal deviation; finally, the main shaft 400 is locked and connected to the seat body 510 through the connecting piece 520.

[0083] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A pressure test device for testing the pressure bearing capacity of a photovoltaic module, characterized in that: include: Support frame; A main shaft, mounted on the support frame; A mounting frame connected to the main shaft, and a side of the mounting frame facing away from the main shaft is used to carry the photovoltaic assembly; The mounting frame includes a first support member and a second support member, there are two first support members, and the two first support members are arranged at intervals along the axial direction of the main shaft and installed on the main shaft; the two ends of the second support member are respectively connected to the two first support members to increase the structural strength of the pressure testing device.

2. The pressure test device according to claim 1, characterized in that: The second support member includes a first support plate and a second support plate which are perpendicular to each other; the first support plate is connected to a side of the first support member facing the photovoltaic assembly, and the second support plate abuts against the first support member.

3. The pressure test device according to claim 2, characterized in that: There are two second support members, which are respectively arranged at two ends of the first support member.

4. The pressure test device according to claim 2, characterized in that: The first supporting member is a purlin; both sides of the purlin in the width direction are respectively provided with a butt joint plate extending in the width direction of the purlin, and the butt joint plate is fixed to the first supporting plate.

5. The pressure testing device according to claim 1, characterized in that: Also includes: A third support member, wherein two ends of the third support member are detachably fixed to the two first support members respectively.

6. The pressure test device according to claim 4, characterized in that: Also includes: U-bolt assembly; the U-bolt assembly comprises a U-bolt, a fastening nut and a U-bolt spacer; The purlin is provided with at least two first mounting holes, the U-shaped bolt passes through the U-shaped bolt pad and the two first mounting holes and is fixed to the purlin via the fastening nut; the U-shaped bolt and the U-shaped bolt pad are jointly arranged to form a penetration space, and the end of the main shaft is installed in the penetration space.

7. The pressure testing device according to claim 1, characterized in that: The support frame comprises a support frame body and a pair of fixing seats arranged on the support frame body, and both ends of the main shaft in the length direction are respectively installed on the fixing seats.

8. The pressure testing device according to claim 7, characterized in that: The fixing seat comprises a seat body and a connecting piece; The seat body includes a first fixing plate and a side plate, wherein the first fixing plate is arranged on the top of the side plate; wherein the first fixing plate has a first concave surface, and the connecting member has a second concave surface, and the first concave surface cooperates with the second concave surface to form a clamping space for accommodating the main shaft.

9. The pressure test device according to claim 8, characterized in that: The first fixing plate is provided with first docking parts on two opposite sides, and the connecting member is provided with second docking parts on two opposite sides; the first docking parts and the second docking parts are connected and matched with each other to clamp the main shaft between the first fixing plate and the connecting member.

10. The pressure testing device according to claim 8, characterized in that: The fixing seat is also provided with a locking bolt, which passes through the connecting piece, the main shaft and the first fixing plate in sequence to fix the main shaft in the clamping space to limit the rotation of the main shaft.

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