Dynamic voltage restorer test board

Abstract

The invention discloses a dynamic voltage restorer test board, which belongs to the technical field of test boards, and comprises a dynamic voltage restorer, a power analyzer and a support structure which is positioned on one side of the dynamic voltage restorer and is used for placing the power analyzer and a test tool, the supporting structure comprises a U-shaped supporting frame, a movable rod arranged on the U-shaped supporting frame in a sliding and sleeving mode and a supporting table arranged above the movable rod. According to the invention, the universal wheels with brakes of the support structure realize convenient movement of the whole test bench, the test bench can be rapidly adjusted to an optimal test position on the side of the dynamic voltage restorer, the lifting adjustment structure adopts a combined design of worm and gear and thread transmission, and an operator can accurately adjust the height of the support bench by rotating a handle. The device not only can adapt to operation habits of operators with different heights, but also can be flexibly adjusted according to wiring height requirements of different testing devices such as a power analyzer and a dynamic load simulator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of test benches, in particular to a dynamic voltage restorer test bench. BACKGROUND

[0002] A dynamic voltage restorer is a power electronic device connected in series between the power grid and sensitive loads, and its core function is to maintain the stability and qualification of the load side voltage by injecting compensation voltage quickly when the power quality problems such as voltage sag, voltage swell, interruption or harmonic pollution occur in the power grid.

[0003] The Chinese patent publication No. CN210690714U discloses a dynamic voltage restorer test bench, which comprises two L-shaped plates, a same workbench is welded on the top outer wall of the two L-shaped plates, a wood plate is fixed on the bottom outer wall of each of the two L-shaped plates through bolts, a same rubber pad is attached to the bottom outer wall of the two wood plates, a fixing box is welded on the side outer wall of the L-shaped plate on the right, a storage battery is fixed on the bottom inner wall of the fixing box through bolts, a water tank is fixed on the middle position of the bottom inner wall of the workbench through bolts, a water pump is fixed on the bottom inner wall of the water tank through bolts, a water inlet pipe is inserted into the water inlet inner wall of the water pump, and a water outlet pipe is inserted into the water outlet inner wall of the water pump. The staff can stand above the rubber pad, and the rubber pad and the wood plate are both insulators, so that the staff will not form a loop with the ground during the experiment, thereby reducing the risk of electric shock.

[0004] In the above-mentioned prior art, the dynamic voltage restorer is in the form of a cabinet, which is relatively large in size. The test bench of the prior art is designed in a fixed manner, which is inconvenient to adjust according to the position of the dynamic voltage restorer after installation and fixation, and is also inconvenient to adjust the support height. When the height difference of the operators is large, it is easy to appear uncomfortable operating postures such as bending and standing on tiptoe, which increases the labor intensity. SUMMARY

[0005] In view of the above technical deficiencies, the purpose of the present application is to provide a dynamic voltage restorer test bench to solve the problems of the test bench designed in a fixed manner, inconvenient to adjust according to the position of the dynamic voltage restorer after installation and fixation, and inconvenient to adjust the support height, which increases the labor intensity when the height difference of the operators is large.

[0006] To solve the above technical problems, the present application adopts the following technical solutions: A dynamic voltage restorer test bench, comprising: The dynamic voltage restorer and the power analyzer, characterized in that it further comprises: A support structure located on one side of the dynamic voltage restorer for placing the power analyzer and test tools; A lifting adjusting structure arranged on the support structure is used to adjust the height of the support structure; A support extending structure arranged on the support structure is used to increase the size of the platform for placing tools.

[0007] Preferably, the support structure comprises: A U-shaped support frame; A movable rod slidingly sleeved on the U-shaped support frame; A support table arranged above the movable rod, on which the power analyzer is located; A mounting plate arranged on the U-shaped support frame; A storage battery arranged on the mounting plate, which is electrically connected to the power analyzer through a wire. Preferably, the support structure further comprises a brake universal wheel arranged below the U-shaped support frame.

[0008] Preferably, a storage box is arranged above the mounting plate, and a plurality of drawers are slidingly installed in the storage box.

[0009] Preferably, the lifting adjusting structure comprises: A guide rod arranged on the U-shaped support frame; A threaded rod slidingly installed in the guide rod; A support plate fixedly sleeved on the guide rod, which is slidingly sleeved on the threaded rod; A worm gear rotatably installed on the support plate; A screw hole formed in the interior of the worm gear, in which the threaded rod is threadedly installed; A worm rotatably installed on the support plate and engaged with the worm gear; A handle arranged at one end of the worm.

[0010] Preferably, the support extending structure comprises: A receiving groove formed in the interior of the support table; An extending plate rotatably installed in the receiving groove; A fixed shaft rotatably installed in the interior of the extending plate and arranged on the inner wall of the receiving groove.

[0011] Preferably, the support extending structure further comprises: A plug rod inserted into the interior of the support table; Two plug holes respectively formed in the interiors of the support table and the extending plate, and the plug rod is inserted into the corresponding plug hole.

[0012] The present application has the following advantages: The supporting structure with the brake universal wheel can realize overall convenient movement of the test table, can be quickly adjusted to the optimal test position on the side of the dynamic voltage restorer, the lifting adjusting structure adopts the combination design of worm and screw transmission, the operator can accurately adjust the height of the supporting table by rotating the handle, the operation habit of the operator with different heights can be adapted, and the height requirement of wiring of different test equipment such as the power analyzer and the dynamic load simulator can be flexibly adjusted.

[0013] The supporting extension structure can expand the placing space by overturning the extension plate, and the extension plate is located in front of the dynamic voltage restorer after being unfolded, and the supporting table avoids the front side area, so that the problem of insufficient space for placing multiple equipment is solved, the equipment wiring and the operation area are avoided from being shielded, and the flexibility of the test operation is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0015] Figure 1 A structural schematic diagram of a dynamic voltage restorer test table provided by the embodiment of the present application is provided. Figure 2 A U-shaped supporting frame structural schematic diagram of a dynamic voltage restorer test table provided by the embodiment of the present application is provided. Figure 3 A supporting plate structural schematic diagram of a dynamic voltage restorer test table provided by the embodiment of the present application is provided. Figure 4 An exploded structural schematic diagram of a supporting plate of a dynamic voltage restorer test table provided by the embodiment of the present application is provided. Figure 5 A receiving groove cross-sectional structural schematic diagram of a dynamic voltage restorer test table provided by the embodiment of the present application is provided. Figure 6 An extension plate receiving structural schematic diagram of a dynamic voltage restorer test table provided by the embodiment of the present application is provided.

[0016] Explanation of reference signs: 1. Dynamic voltage restorer; 101. Power analyzer; 2. U-shaped support frame; 201. Movable rod; 202. Support platform; 203. Mounting plate; 204. Battery; 205. Casters with brakes; 206. Storage box; 207. Drawer; 3. Guide rod; 301. Threaded rod; 302. Support plate; 303. Worm gear; 304. Screw hole; 305. Worm; 306. Handle; 4. Storage slot; 401. Extension plate; 402. Fixed shaft; 403. Insert rod; 404. Insertion hole. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1: like Figures 1 to 6 As shown, the present invention provides a dynamic voltage restorer test bench, including: a dynamic voltage restorer 1 and a power analyzer 101, and also includes a support structure located on one side of the dynamic voltage restorer 1 for placing the power analyzer 101 and the test tools.

[0019] The support structure includes a U-shaped support frame 2 and a movable rod 201 slidably fitted on the U-shaped support frame 2, a support platform 202 arranged above the movable rod 201, a mounting plate 203 arranged on the U-shaped support frame 2, a battery 204 arranged on the mounting plate 203, and a caster wheel 205 with brakes arranged below the U-shaped support frame 2. The battery 204 is electrically connected to the power analyzer 101 through wires to provide a stable power supply to the power analyzer 101, avoiding the problem of limited movement caused by relying on an external power supply during the test. The support platform 202 serves as the core bearing platform, which can directly place the power analyzer 101, and can also place other test equipment such as dynamic load simulators and high-speed oscilloscopes, meeting the equipment placement requirements for multi-parameter testing of the dynamic voltage restorer 1. When the support platform 202 is pushed, the caster wheel 205 with brakes below the U-shaped support frame 2 rolls along the ground, realizing the overall movement of the test platform.

[0020] Specifically, a storage box 206 is arranged above the mounting plate 203. Several drawers 207 are slidably installed inside the storage box 206. The storage box 206 and the drawers 207 work together to form a classified storage space, which can be used to store consumables such as test connection wires and terminals, as well as maintenance tools such as wrenches and screwdrivers, to avoid the inconvenience of tools being scattered and difficult to access.

[0021] Example 2: On the basis of embodiment 1, in order to conveniently adjust the height of the support structure, a lifting adjusting structure is arranged on the support structure.

[0022] The lifting adjusting structure comprises a guide rod 3 arranged on the U-shaped support frame 2, a threaded rod 301 slidingly installed inside the guide rod 3, a support plate 302 fixedly sleeved on the guide rod 3 and slidingly sleeved on the threaded rod 301, a worm wheel 303 rotationally installed on the support plate 302, a screw hole 304 opened inside the worm wheel 303 and threadedly matched with the threaded rod 301, a worm gear 305 rotationally installed on the support plate 302 and engaged with the worm wheel 303, and a handle 306 arranged at one end of the worm gear 305. When it is necessary to adjust the height of the support table 202, the handle 306 is rotated to drive the worm gear 305 to rotate. The worm gear 305 drives the worm wheel 303 to rotate on the support plate 302 through the engagement transmission with the worm wheel 303. When the worm wheel 303 rotates, the screw hole 304 inside the worm wheel 304 threadedly matches with the threaded rod 301 to push the threaded rod 301 to slide upward inside the guide rod 3. The top end of the threaded rod 301 drives the support table 202 to synchronously rise. At the same time, the movable rod 201 slides along the inner wall of the U-shaped support frame 2 to provide auxiliary guidance for the support table 202.

[0023] Embodiment three: On the basis of embodiment 1, in order to increase the size of the tool placing platform, a support extension structure is arranged on the support structure.

[0024] The support extension structure comprises a receiving groove 4 opened inside the support table 202, an extension plate 401 rotationally installed inside the receiving groove 4 through a fixed shaft 402, a plug rod 403 inserted inside the support table 202, and two insertion holes 404 respectively opened inside the support table 202 and the extension plate 401. The plug rod 403 can be inserted into the corresponding insertion hole 404 to realize positioning. The support extension structure cooperates with the support table 202 to realize flexible expansion and storage of the placing space. When there are more test equipment or auxiliary tools need to be placed, the plug rod 403 is pulled out to make it separate from the insertion hole 404 on the extension plate 401. The extension plate 401 is flipped from the receiving groove 4 to the horizontal state with the fixed shaft 402 as the rotation center. At this time, the extension plate 401 is located in front of the dynamic voltage restorer 1, and the support table 202 avoids the front side area of the dynamic voltage restorer 1. The tool placing platform area is increased, and the wiring and operation area of the dynamic voltage restorer 1 is avoided from being shielded and interfered.

[0025] Working principle: The support table 202 can be used to place the power analyzer 101 or other test equipment, such as a dynamic load simulator or a high-speed oscilloscope, to test the dynamic voltage restorer 1. The battery 204 can be used to power the equipment. The storage box 206 and the drawer 207 can be used to place some test connection lines or tools such as wrenches and screwdrivers. When the support table 202 is pushed, the test table can be moved as a whole, and the universal wheel 205 with a brake can roll on the ground, so that the position of the test table can be moved to the side of the dynamic voltage restorer 1. After that, the insertion rod 403 can be pulled out of the corresponding insertion hole 404, and then the extension plate 401 can be flipped out of the storage slot 4. When the extension plate 401 is in the storage slot 4, the insertion rod 403 is inserted into the corresponding insertion hole 404, and the extension plate 401 is flipped to the front of the dynamic voltage restorer 1. In this way, the extension plate 401 can be used to place test tools, and the overall test table can not block the front of the dynamic voltage restorer 1. Conversely, the extension plate 401 can be flipped back into the storage slot 4, and the insertion rod 403 can be inserted into the corresponding insertion hole 404 to prevent the extension plate 401 from being flipped out. Figure 1

[0026] The worm 305 can be rotated by rotating the handle 306. The worm 305 can drive the worm gear 303 to rotate on the support plate 302 by engaging with the worm gear 303. When the worm gear 303 rotates, the threaded rod 301 can be lifted vertically by the screw hole 304 and the threaded cooperation of the threaded rod 301. In this way, the threaded rod 301 can slide in the guide rod 3 and drive the support table 202 to move up and down. The support table 202 can drive the movable rod 201 to slide up and down on the U-shaped support frame 2, so as to adjust the support height of the support table 202.

[0027] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.​

Claims

1. A dynamic voltage restorer test bench comprising a dynamic voltage restorer (1) and a power analyzer (101), characterized in that, Also include: Support structure, located on one side of dynamic voltage restorer (1), for placing power analyzer (101) and test tool; Lifting adjustment structure arranged on the support structure for adjusting the height of the support structure; Support extension structure arranged on the support structure for increasing the size of the platform for placing the tool.

2. A dynamic voltage restorer test bench as claimed in claim 1, characterized in that, The support structure comprises: U-shaped support frame (2); Movable rod (201) slidingly sleeved on the U-shaped support frame (2); Supporting table (202) arranged above the movable rod (201), the power analyzer (101) being located on the supporting table (202); Mounting plate (203) arranged on the U-shaped support frame (2).

3. A dynamic voltage restorer test bench as claimed in claim 1, characterized in that, The mounting plate (203) is arranged with a battery (204), and the battery (204) is electrically connected to the power analyzer (101) through a wire.

4. A dynamic voltage restorer test bench as claimed in claim 2, characterized in that The support structure further comprises a brake universal wheel (205) arranged below the U-shaped support frame (2).

5. A dynamic voltage restorer test bench as claimed in claim 4, characterized in that A storage box (206) is arranged above the mounting plate (203), and a plurality of drawers (207) are slidingly installed in the storage box (206).

6. A dynamic voltage restorer test bench as recited in claim 1, wherein, The lifting adjustment structure comprises: Guide rod (3) arranged on the U-shaped support frame (2); Threaded rod (301) slidingly installed in the guide rod (3); Support plate (302) fixedly sleeved on the guide rod (3), the support plate (302) slidingly sleeved on the threaded rod (301).

7. A dynamic voltage restorer test bench as claimed in claim 6, characterized in that The lifting adjustment structure further comprises: Worm gear (303) rotatably installed on the support plate (302); Screw hole (304) formed in the inside of the worm gear (303), the threaded rod (301) being screwedly installed in the screw hole (304); Worm (305) rotatably installed on the support plate (302) and engaged with the worm gear (303).

8. A dynamic voltage restorer test bench as recited in claim 1, wherein, One end of the worm (305) is further arranged with a handle (306).

9. A dynamic voltage restorer test bench as recited in claim 1, wherein, The support extension structure comprises: Storage groove (4) formed in the inside of the supporting table (202); Extension plate (401) rotatably installed in the inside of the storage groove (4); Fixed shaft (402) rotatably installed in the inside of the extension plate (401) and arranged on the inner wall of the storage groove (4).

10. A dynamic voltage restorer test bench as recited in claim 1, wherein, The support extension structure further comprises: Plug rod (403) inserted into the inside of the supporting table (202); Two insertion holes (404) respectively formed in the inside of the supporting table (202) and the extension plate (401), the plug rod (403) being inserted into the corresponding insertion hole (404).

Images