Angle-variable photovoltaic IV test tool

Abstract

The utility model discloses a photovoltaic IV test tool with a variable angle. The photovoltaic IV test tool comprises a test frame and a bearing fixedly installed on the upper side of the test frame. A rotating mechanism is arranged above the testing frame, the rotating mechanism comprises a round rod, a polygonal rod and a rotating disc, the round rod is fixedly connected with the polygonal rod, and the round rod is in bilateral symmetry about the vertical central axis of the polygonal rod; a limiting mechanism is arranged on the left side of the testing frame and comprises a limiting rod, an upper threaded ring and a lower threaded ring, and the limiting rod is in sliding connection with a bearing plate on the left side of the testing frame. According to the photovoltaic IV testing tool with the variable angle, a rotating handle on the side face of a rotating disc is rotated, a polygonal rod can be driven to rotate through a round rod, so that angle adjustment is achieved, movement of a limiting rod is limited through an upper threaded ring and a lower threaded ring, the rotating polygonal rod can be limited and cannot move, the fixing effect is achieved, the limiting ring drives a pressing ring to move, and therefore the angle can be adjusted. Therefore, the two fixing strips are pushed to clamp the testing tool.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic IV testing, in particular to a photovoltaic IV testing tool with a variable angle. Background Art

[0002] Photovoltaic IV refers to the current-voltage (IV) characteristics of photovoltaic modules, which is one of the key parameters for evaluating the performance of photovoltaic modules. The IV characteristics describe the relationship between the output current and output voltage of photovoltaic modules under certain lighting conditions. Photovoltaic IV test tooling is a device used for IV testing of photovoltaic modules. IV testing is a current-voltage (IV) test used to evaluate the electrical performance of photovoltaic modules. It measures the current and voltage changes of the module under different lighting conditions to calculate the key parameters of the module, such as power and efficiency. IV testing can also be used to compare the performance of different photovoltaic modules, providing a basis for selecting modules suitable for specific application scenarios. During the operation and maintenance of photovoltaic systems, regular IV testing can also help monitor the performance changes of modules and promptly discover and deal with potential problems.

[0003] However, the common photovoltaic IV test fixture is not easy to adjust its angle during use, and the clamped test fixture cannot be rotated as needed, and the applicable surface is narrow, resulting in different test results under different light intensities;

[0004] Therefore, we propose a photovoltaic IV test fixture with a variable angle to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic IV test fixture with a variable angle to solve the problem raised in the above background technology that the angle of the currently common photovoltaic IV test fixture is not convenient to adjust during use, the clamped test fixture cannot be rotated as needed, and the applicable surface is narrow, which leads to different test results under different light intensities.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic IV test fixture with a variable angle, comprising: a test frame and a bearing fixedly mounted on the upper side of the test frame;

[0007] Also includes:

[0008] A rotating mechanism is arranged above the test stand, wherein the rotating mechanism comprises a round rod, a polygonal rod and a turntable, wherein the round rod is fixedly connected to the polygonal rod, and the round rod is bilaterally symmetrical about the vertical center axis of the polygonal rod;

[0009] A limiting mechanism is arranged on the left side of the test frame, wherein the limiting mechanism comprises a limiting rod, an upper threaded ring and a lower threaded ring, the limiting rod is slidably connected to the receiving plate on the left side of the test frame, and a connecting piece is fixedly connected to the upper side of the limiting rod.

[0010] Preferably, a U-shaped rod is fixedly connected to the left upper side of the test frame, and the U-shaped rod fits tightly with the round rod.

[0011] Preferably, a turntable is fixedly connected to the left side of the round rod on the left side of the polygonal rod, and the turntable's turntable is rotatably connected to the sleeve.

[0012] Preferably, a connecting rod is fixedly connected to the lower side of the sleeve, and a connecting piece is rotatably connected to the lower side of the connecting rod.

[0013] Preferably, the outer side of the limit rod is threadedly connected with an upper threaded ring and a lower threaded ring, and the upper threaded ring is located on the upper side of the receiving plate on the left side of the test frame, and the lower threaded ring is located on the lower side of the receiving plate on the left side of the test frame.

[0014] Preferably, the polygonal rod is slidably connected to both the limiting ring and the fixing bar, and both the limiting ring and the fixing bar are bilaterally symmetrical about the vertical center axis of the polygonal rod.

[0015] Preferably, the limiting ring is slidably connected to the pressing block, and the limiting ring is threadedly connected to the angle fixing nut, and the limiting rings are distributed in an array, and the limiting rings and the angle fixing nuts correspond one to one.

[0016] Preferably, a spring is provided on the outer side of the limiting ring, and the limiting ring corresponds to the spring one by one, and the side surface of the limiting ring is fixedly connected to the pressing ring.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the photovoltaic IV test fixture with variable angle can rotate the handle on the side of the turntable to rotate the polygonal rod with the round rod, thereby realizing angle adjustment; the upper threaded ring and the lower threaded ring limit the movement of the limit rod, so that the rotating polygonal rod is restricted and cannot move, thereby playing a fixing role; the limit ring moves with the pressure ring, thereby pushing the two fixing bars to clamp the test fixture;

[0018] 1. A round rod, a polygonal rod and a turntable are provided. By turning the handle on the side of the turntable, the polygonal rod can be rotated by the round rod to adjust the angle;

[0019] 2. A connecting rod, a connecting piece and a limiting rod are provided. The limiting rod is moved up and down by the movement of the connecting rod, and the upper threaded ring and the lower threaded ring limit the movement of the limiting rod, so that the rotating polygonal rod is restricted from moving, thus playing a fixing role;

[0020] 3. Set a limit ring, a pressure ring and a fixing strip. By adjusting the position of the angle fixing nut on the limit ring, the limit ring can move with the pressure ring, thereby pushing the two fixing strips to clamp the test fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cutaway structure of the limit ring of the utility model from a side view;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the limiting ring of the utility model;

[0024] Figure 4 This is a schematic diagram of the initial state structure of the connecting rod of the utility model;

[0025] Figure 5 This is a schematic diagram of the working state structure of the turntable of the utility model.

[0026] In the figure: 1. test frame; 2. U-shaped rod; 3. bearing; 4. round rod; 5. polygonal rod; 6. turntable; 7. sleeve; 8. connecting rod; 9. connecting piece; 10. limit rod; 11. upper threaded ring; 12. lower threaded ring; 13. limit ring; 14. pressure block; 15. spring; 16. angle fixing nut; 17. pressure ring; 18. fixing strip. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 The utility model provides a technical solution: a photovoltaic IV test fixture with a variable angle, including: a test frame 1, a U-shaped rod 2, a bearing 3, a round rod 4, a polygonal rod 5, a turntable 6, a sleeve 7, a connecting rod 8, a connecting piece 9, a limiting rod 10, an upper threaded ring 11, a lower threaded ring 12, a limiting ring 13, a pressure block 14, a spring 15, an angle fixing nut 16, a pressure ring 17 and a fixing bar 18;

[0029] When using the variable angle photovoltaic IV test fixture, Figure 1 and Figure 2As shown, a U-shaped rod 2 is fixedly installed on the upper left side of the test frame 1, and the upper right side of the test frame 1 is fixedly connected to the outer side of the bearing 3, the round rod 4 is a cylinder, and the polygonal rod 5 is a cube. The round rod 4 is located on both sides of the polygonal rod 5, the round rod 4 on the left side of the polygonal rod 5 is located in the groove of the U-shaped rod 2, and the round rod 4 on the right side of the polygonal rod 5 is arranged on the inner side of the bearing 3, the limiting ring 13 and the pressing ring 17 are sleeved on the outer side of the polygonal rod 5, and the pressing ring 17 on the side of the limiting ring 13 is located on the inner side of the two limiting rings 13, so as to facilitate the extrusion of the fixing strip 18, and then clamp the test fixture, in addition, the pressing ring 17 increases the contact area between the limiting ring 13 and the fixing strip 18, and reduces the pressure on the fixing strip 18;

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the pressing block 14 is slidably connected with the limiting ring 13, and a spring 15 is arranged on the outside of the pressing block 14. The limiting ring 13 is threadedly connected with the angle fixing nut 16. By rotating the angle fixing nut 16, the inner side of the angle fixing nut 16 will move toward the center of the circle of the limiting ring 13. Since the pressing block 14 and the angle fixing nut 16 are tightly fitted, the pressing block 14 will also move toward the center of the circle, and then contact the outer side of the polygonal rod 5. At this time, the spring 15 on the corresponding outer side of the pressing block 14 will also undergo elastic deformation. By rotating the remaining angle fixing nut 16 on the outer side of the limiting ring 13, the polygon A limiting ring 13 on the outside of the rod 5 is fixed on the outside of the polygonal rod 5, and the test tool is placed on the side of the limiting ring 13 corresponding to the pressure ring 17, and then another limiting ring 13 on the outside of the polygonal rod 5 is tightly fitted with the test tool, and fixed in the same way, the clamping of the test tool can be achieved. When the test tool needs to be replaced, the angle fixing nut 16 on the outside of a limiting ring 13 can be rotated to replace the new test tool for testing. In addition, when the angle fixing nut 16 is rotated in the opposite direction, the spring 15 will restore its elastic deformation and move the pressure block 14 outward;

[0031] like Figure 1 , Figure 4 and Figure 5As shown, when the angle needs to be adjusted, since the turntable 6 is fixedly connected to the round rod 4, the turn handle outside the turntable 6 can be turned to make the round rod 4 rotate with the polygonal rod 5, so that the test fixture rotates together. When the angle adjustment is completed, it is necessary to fix it to prevent deviation. The turn handle on the side of the turntable 6 is rotatably connected to the sleeve 7, the sleeve 7 is fixedly connected to the connecting rod 8, and the connecting rod 8 is rotatably connected to the connecting piece 9. Since the connecting piece 9 is fixedly installed on the upper side of the limit rod 10, the limit rod 10 is slidably connected to the receiving plate on the side of the test frame 1, and the receiving plate on the side of the test frame 1 also limits the limit rod 10, ensuring To ensure that the limit rod 10 is always in a vertical state relative to the lower side of the test frame 1, when the turntable 6 rotates, the connecting rod 8 will move with the sleeve 7, thereby pushing the limit rod 10 to move up and down on the test frame 1. Because the upper threaded ring 11 and the lower threaded ring 12 are both threadedly connected to the limit rod 10, after the adjustment is completed, the upper threaded ring 11 and the lower threaded ring 12 are rotated to ensure that the upper threaded ring 11 is tightly fitted with the upper side of the side receiving plate of the test frame 1, and the lower threaded ring 12 is tightly fitted with the lower side of the side receiving plate of the test frame 1, so that the turntable 6 no longer rotates, thereby achieving the fixed operation after the angle adjustment.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic IV test fixture with variable angle, comprising: A test frame (1) and a bearing (3) fixedly mounted on the upper side of the test frame (1); It is characterized by further comprising: A rotating mechanism is arranged above the test stand (1), wherein the rotating mechanism comprises a round rod (4), a polygonal rod (5) and a turntable (6), wherein the round rod (4) is fixedly connected to the polygonal rod (5), and the round rod (4) is bilaterally symmetrical about the vertical center axis of the polygonal rod (5); A limiting mechanism is arranged on the left side of the test frame (1), wherein the limiting mechanism comprises a limiting rod (10), an upper threaded ring (11) and a lower threaded ring (12); the limiting rod (10) is slidably connected to a receiving plate on the left side of the test frame (1), and a connecting piece (9) is fixedly connected to the upper side of the limiting rod (10).

2. The variable-angle photovoltaic IV test fixture according to claim 1, characterized in that: A U-shaped rod (2) is fixedly connected to the left upper side of the test frame (1), and the U-shaped rod (2) is tightly fitted to the round rod (4).

3. The variable angle photovoltaic IV test fixture according to claim 1, characterized in that: A rotating disk (6) is fixedly connected to the left side of the round rod (4) on the left side of the polygonal rod (5), and the rotating rod of the rotating disk (6) is rotatably connected to the sleeve (7).

4. The variable angle photovoltaic IV test fixture according to claim 3, characterized in that: The lower side of the sleeve (7) is fixedly connected to a connecting rod (8), and the lower side of the connecting rod (8) is rotatably connected to a connecting piece (9).

5. The photovoltaic IV test fixture with variable angle according to claim 1, characterized in that: The outer side of the limiting rod (10) is threadedly connected to an upper threaded ring (11) and a lower threaded ring (12), wherein the upper threaded ring (11) is located on the upper side of a receiving plate on the left side of the test frame (1), and the lower threaded ring (12) is located on the lower side of the receiving plate on the left side of the test frame (1).

6. The variable angle photovoltaic IV test fixture according to claim 1, characterized in that: The polygonal rod (5) is slidably connected to the limiting ring (13) and the fixing strip (18), and the limiting ring (13) and the fixing strip (18) are both bilaterally symmetrical about the vertical center axis of the polygonal rod (5).

7. A photovoltaic IV test fixture with a variable angle according to claim 6, characterized in that: The limiting ring (13) is slidably connected to the pressing block (14), and the limiting ring (13) is threadedly connected to the angle fixing nut (16), and the limiting rings (13) are distributed in an array, and the limiting rings (13) and the angle fixing nuts (16) correspond one to one.

8. The variable-angle photovoltaic IV test fixture according to claim 7, characterized in that: A spring (15) is arranged on the outer side of the limiting ring (13), and the limiting ring (13) corresponds to the spring (15) one by one, and the side surface of the limiting ring (13) is fixedly connected to the pressure ring (17).

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