Intelligent distribution box voltage tolerance detection device

Abstract

The utility model relates to the technical field of voltage tolerance detection, in particular to an intelligent distribution box voltage tolerance detection device which comprises a voltage tolerance detector body, a supporting seat is arranged on the voltage tolerance detector body, a clamping component used for fixing a distribution box circuit board is arranged on the supporting seat, and the clamping component comprises a first top plate. Two rectangular guide pipes are arranged at the bottom of the first top plate, rectangular movable rods are slidably connected into the two rectangular guide pipes correspondingly, a driving part used for driving the two rectangular movable rods to move front and back is arranged between the two rectangular guide pipes, and L-shaped connecting plates are arranged at the tops of the two rectangular movable rods correspondingly; the opposite side faces of the two L-shaped connecting plates are each provided with an L-shaped clamping supporting plate. According to the intelligent distribution box voltage tolerance detection device, a mechanical transmission structure in which the rigid guide pipe is matched with the movable rod is adopted, a spring connection mode is replaced, the risk of displacement of the clamping component when the supporting seat moves is effectively eliminated, and stable contact between the detection probe and a circuit board contact is guaranteed.

Description

A smart distribution box voltage withstand detection device Technical Field

[0001] This utility model relates to the field of voltage withstand testing technology, specifically to a voltage withstand testing device for an intelligent distribution box. Background Technology

[0002] Intelligent distribution boxes are a key component of modern power systems, widely used in industrial, commercial, and residential sectors. Compared to traditional distribution boxes, intelligent distribution boxes typically integrate advanced monitoring, control, and communication technologies, enabling efficient management and allocation of power resources. They not only possess basic power distribution functions but also monitor electrical parameters such as current, voltage, and power in real time, optimizing energy use through data analysis to improve system safety and economy. In intelligent distribution boxes, the circuit board is a crucial electrical component responsible for controlling the box's circuitry and distributing energy. Circuit boards typically consist of various electronic components, including chips, capacitors, resistors, and transformers. These components work together to ensure the stable and efficient operation of the distribution box. With the rapid development of the electrical industry, the voltage withstand capabilities of the circuit boards within distribution boxes are becoming increasingly stringent to ensure safety and reliability under various operating conditions. Therefore, during the production process of distribution boxes, the voltage withstand values ​​of the circuit boards must be tested to verify their normal operating capability under specific voltages.

[0003] Patent CN116819258B discloses a voltage withstand testing device for distribution boxes, belonging to the field of voltage withstand testing technology. This invention provides a more convenient and efficient method for testing the voltage withstand capabilities of circuit boards in distribution boxes. In practical use, the circuit board of the distribution box to be tested is placed on a support base and fixed by a clamping component. Then, the first driving component is activated to move the support base horizontally relative to the base plate, thereby moving the contacts on the circuit board directly below the testing probe. Next, the second driving component is activated to drive the lifting rod vertically downwards, causing the testing probe to descend vertically as well. Finally, the testing probe contacts the contacts on the circuit board, applying a testing voltage to the circuit board through the contacts, thus achieving voltage withstand testing. This eliminates the need for manual use of a testing pen, making the voltage withstand test more labor-saving and efficient.

[0004] While the aforementioned existing technology can more quickly perform voltage withstand testing on circuit boards in distribution boxes, it still has some shortcomings in practical use. Specifically, the circuit board to be tested is placed on the upper surface of the support base and fixed by a first clamping plate and a second clamping plate. These two clamping plates are connected by springs, and there is a possibility of wobbling during the movement of the support base. Furthermore, the first and second clamping plates cannot ensure the circuit board is centered during clamping. If these two clamping plates shift to the left or right simultaneously, the springs will also shift, causing the clamped circuit board to shift when the support base moves. This situation prevents the detection probe from accurately performing voltage withstand testing on the circuit board at the set position, thus affecting the accuracy and reliability of the test results. Therefore, we propose an intelligent distribution box voltage withstand testing device, aiming to improve the stability and accuracy of the circuit board during the testing process by optimizing the clamping and positioning mechanism, ensuring efficient and reliable voltage withstand testing. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent distribution box voltage withstand detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A smart distribution box voltage withstand detection device includes a voltage withstand detector body. The voltage withstand detector body is used to apply a detection voltage and determine the withstand capability of the distribution box circuit board. The specific working principle of the voltage withstand detector body is the prior art. For example, the detailed working principle of a distribution box voltage withstand detection device disclosed in patent publication number CN116819258B is described in detail, and will not be repeated here.

[0008] As shown in Figures 1, 2, and 4, the voltage withstand detector body is provided with a support base, which serves as a bearing platform for fixing the circuit board and conducting the testing operation. The support base is provided with a clamping component for fixing the circuit board of the distribution box. The clamping component is used to clamp the circuit board in the center and prevent displacement during the testing process. The clamping component includes a first top plate, which is used to install a driving component and a guide structure. The bottom of the first top plate is provided with two rectangular guide tubes arranged symmetrically front and back. The rectangular guide tubes are used to limit the movement direction of the rectangular movable rods. A rectangular movable rod is slidably connected inside each of the two rectangular guide tubes. A driving component is provided between the two rectangular guide tubes to drive the two rectangular movable rods to move back and forth. The driving component provides a stable driving force through a worm gear transmission, so that the two rectangular movable rods move synchronously relative to each other or synchronously in opposite directions.

[0009] Both of the rectangular movable rods are provided with L-shaped connecting plates at their tops. The top of the inner wall of the L-shaped connecting plate is in contact with the top of the support base. Both of the L-shaped connecting plates are provided with L-shaped clamping trays on their opposite sides. The bottom of the L-shaped clamping trays is in contact with the top of the support base. The L-shaped clamping trays are used to adapt to the edge of the circuit board and ensure that the clamping is centered.

[0010] Preferably, as shown in Figures 3 and 4, the top of the support base is provided with a first mounting groove, which is used to fix the mounting position of the first top plate and the driving component. The first mounting groove is parallel to the left side of the support base. The first top plate is located at the top inside the first mounting groove. The top of both the front and rear sides of the support base are provided with two first docking grooves arranged symmetrically from left to right. The first docking grooves are used to fix the first docking seats with screws. The first docking seats are provided on both the left and right sides of the first top plate and at the front and rear ends. The four first docking seats are respectively connected to the four first docking grooves with screws. The first docking seats are used to fasten the first top plate to the support base.

[0011] Preferably, as shown in Figures 5 and 6, the driving component includes a rectangular housing for enclosing the worm gear transmission structure. A worm gear is rotatably connected between the front and rear sides of the inner wall of the rectangular housing. The worm gear is used to convert the rotational motion of the worm into the rotation of the lead screw. Both ends of the worm gear shaft pass through the inner wall of the rectangular housing, and both ends of the worm gear shaft are coaxially connected to the lead screw. The two lead screws are located in two rectangular guide tubes respectively, and the lead screws are used to drive the rectangular movable rod to move linearly.

[0012] The two lead screws are arranged symmetrically front to back, and the two rectangular movable rods are respectively threaded to the outside of the two lead screws;

[0013] A worm gear, meshing with a worm wheel, is rotatably connected between the left and right sides of the inner wall of the rectangular housing. The worm gear receives the rotational force input by the handwheel and transmits it to the worm wheel. A second top plate is provided in the middle of the right side of the first top plate. The second top plate is used to support the rotating rod. A rectangular vertical plate is provided at the right end of the bottom of the second top plate. A rotating rod is rotatably connected to the left side of the rectangular vertical plate through a bearing. The left end of the rotating rod is coaxially connected to the right end of the worm gear shaft. The rotating rod is used to connect the worm gear and the handwheel and transmit driving force. A handwheel is provided at the right end of the rotating rod. The handwheel is used to manually drive the worm gear to rotate.

[0014] Preferably, as shown in Figures 3 and 4, the top of the support base is provided with a second mounting groove. The second mounting groove is used to fix the installation position of the second top plate and the transmission component. The second mounting groove is arranged perpendicularly to the first mounting groove. The second top plate is located at the top inside the second mounting groove. The top right side of the support base is provided with two second docking grooves arranged symmetrically front and back. The second docking grooves are used to fix the second docking seats with screws. The right ends of both the front and rear sides of the second top plate are provided with second docking seats. The two second docking seats are respectively connected to the two second docking grooves with screws. The second docking seats are used to fasten the second top plate to the support base.

[0015] Preferably, as shown in Figure 7, each of the two L-shaped clamping trays has a U-shaped connecting block on its opposite sides and at the center of its bottom edge. The U-shaped connecting block is used to connect the L-shaped clamping tray and the L-shaped connecting plate. The end of the L-shaped connecting plate is located inside the U-shaped connecting block. The top of the U-shaped connecting block has a mounting hole, and a fixing bolt is connected to the mounting hole. The fixing bolt is used to enable quick assembly and disassembly of the L-shaped clamping tray. The threaded end of the fixing bolt is threaded to the top of the L-shaped connecting plate, which facilitates the assembly and disassembly of the L-shaped clamping tray. The inner side of the L-shaped clamping tray has a groove that matches the edge of the distribution box circuit board, further ensuring the stability of the distribution box circuit board. When replacing different models of distribution box circuit boards, the matching L-shaped clamping tray can be replaced.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This intelligent distribution box voltage withstand detection device drives symmetrically distributed lead screws through a worm gear transmission mechanism to achieve bidirectional synchronous clamping force adjustment, ensuring that the circuit board is fixed in the center and avoiding the offset or shaking problems caused by traditional spring clamping, thereby improving the accuracy of voltage withstand detection.

[0018] 2. The intelligent distribution box voltage withstand detection device adopts a mechanical transmission structure with a rigid guide tube and a movable rod, replacing the spring connection method. This effectively eliminates the risk of displacement of the clamping parts when the support seat moves, and ensures stable contact between the detection probe and the circuit board contacts.

[0019] 3. The voltage withstand testing device for this intelligent distribution box has an L-shaped clamping tray with a groove on the inner side that matches the edge of the circuit board. Combined with a detachable U-shaped connecting block and fixing bolts, it is easy to quickly replace clamping trays of different specifications to meet diverse testing needs and improve the versatility of the device. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a partial structural schematic diagram of this utility model;

[0022] Figure 3 is a schematic diagram of the support structure in this utility model;

[0023] Figure 4 is a schematic diagram of the clamping component structure in this utility model;

[0024] Figure 5 is a partial structural schematic diagram of the clamping component in this utility model;

[0025] Figure 6 is an enlarged schematic diagram of the structure at point A in Figure 5 of this utility model;

[0026] Figure 7 is a schematic diagram of the assembly structure of the rectangular movable rod, the L-shaped connecting plate and the L-shaped clamping plate in this utility model;

[0027] In the diagram: 1. Voltage withstand detector body; 2. Support base; 20. First mounting slot; 21. Second mounting slot; 22. First docking slot; 23. Second docking slot; 3. Clamping component; 30. First top plate; 300. First docking seat; 31. Driving component; 310. Rectangular housing; 311. Worm gear; 312. Lead screw; 313. Worm; 32. Rectangular guide tube; 33. Rectangular movable rod; 34. L-shaped connecting plate; 35. L-shaped clamping support plate; 350. U-shaped connecting block; 351. Mounting hole; 352. Fixing bolt; 36. Second top plate; 360. Second docking seat; 37. Rectangular vertical plate; 38. Rotating rod; 39. Handwheel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Please refer to Figures 1-7. This utility model provides a technical solution:

[0031] A smart distribution box voltage withstand detection device includes a voltage withstand detector body 1. The voltage withstand detector body 1 is used to apply a detection voltage and determine the withstand capability of the distribution box circuit board. The specific working principle of the voltage withstand detector body 1 is the prior art. For example, the detailed working principle of a distribution box voltage withstand detection device disclosed in patent publication number CN116819258B is described in detail, and will not be repeated here.

[0032] As shown in Figures 1, 2, and 4, the voltage withstand detector body 1 is provided with a support base 2. The support base 2 is used to provide a bearing platform for fixing the circuit board and the testing operation. The support base 2 is provided with a clamping component 3 for fixing the circuit board of the distribution box. The clamping component 3 is used to clamp the circuit board in the center and prevent displacement during the testing process. The clamping component 3 includes a first top plate 30. The first top plate 30 is used to install the driving component 31 and the guide structure. The bottom of the first top plate 30 is provided with two rectangular guide tubes 32 arranged symmetrically front and back. The rectangular guide tubes 32 are used to limit the movement direction of the rectangular movable rods 33. The rectangular movable rods 33 are slidably connected in both rectangular guide tubes 32. The driving component 31 is provided between the two rectangular guide tubes 32 to drive the two rectangular movable rods 33 to move back and forth. The driving component 31 provides a stable driving force through worm gear transmission, so that the two rectangular movable rods 33 move synchronously relative to each other or synchronously in opposite directions.

[0033] The top of each of the two rectangular movable rods 33 is provided with an L-shaped connecting plate 34. The top of the inner wall of the L-shaped connecting plate 34 is in contact with the top of the support base 2. The opposite sides of the two L-shaped connecting plates 34 are provided with L-shaped clamping plates 35. The bottom of the L-shaped clamping plates 35 is in contact with the top of the support base 2. The L-shaped clamping plates 35 are used to adapt to the edge of the circuit board and ensure that the clamping is centered.

[0034] In this embodiment, as shown in Figures 3 and 4, a first mounting groove 20 is provided on the top of the support base 2. The first mounting groove 20 is used to fix the mounting position of the first top plate 30 and the driving component 31. The first mounting groove 20 is parallel to the left side of the support base 2. The first top plate 30 is located at the top inside the first mounting groove 20. Two first docking grooves 22 are provided on the top of both the front and rear sides of the support base 2. The first docking grooves 22 are used to fix the first docking seat 300 by screws. The first docking seat 300 is provided on both the left and right sides of the first top plate 30 and at the front and rear ends. The four first docking seats 300 are respectively connected to the four first docking grooves 22 by screws. The first docking seats 300 are used to fasten the first top plate 30 to the support base 2.

[0035] Specifically, as shown in Figures 5 and 6, the driving component 31 includes a rectangular housing 310, which encloses the worm gear transmission structure. A worm wheel 311 is rotatably connected between the front and rear sides of the inner wall of the rectangular housing 310. The worm wheel 311 is used to convert the rotational motion of the worm 313 into the rotation of the lead screw 312. Both ends of the worm wheel 311 shaft pass through the inner wall of the rectangular housing 310, and both ends of the worm wheel 311 shaft are coaxially connected to the lead screw 312. The two lead screws 312 are located in two rectangular guide tubes 32 respectively, and the lead screws 312 are used to drive the rectangular movable rod 33 to move linearly.

[0036] The two lead screws 312 are arranged symmetrically front and back, and the two rectangular movable rods 33 are threaded to the outside of the two lead screws 312 respectively;

[0037] A worm 313, which meshes with a worm gear 311, is rotatably connected between the left and right sides of the inner wall of the rectangular housing 310. The worm 313 receives the rotational force input by the handwheel 39 and transmits it to the worm gear 311. A second top plate 36 is provided in the middle of the right side of the first top plate 30. The second top plate 36 is used to support the rotating rod 38. A rectangular vertical plate 37 is provided at the right end of the bottom of the second top plate 36. The left side of the rectangular vertical plate 37 is rotatably connected to the rotating rod 38 through a bearing. The left end of the rotating rod 38 is coaxially connected to the right end of the rotating shaft of the worm 313. The rotating rod 38 is used to connect the worm 313 and the handwheel 39 and transmit driving force. A handwheel 39 is provided at the right end of the rotating rod 38. The handwheel 39 is used to manually drive the worm 313 to rotate.

[0038] Furthermore, as shown in Figures 3 and 4, a second mounting groove 21 is provided on the top of the support base 2. The second mounting groove 21 is used to fix the installation position of the second top plate 36 and the transmission components. The second mounting groove 21 is arranged perpendicularly to the first mounting groove 20. The second top plate 36 is located at the top inside the second mounting groove 21. Two second docking grooves 23 are provided on the top right side of the support base 2, which are arranged symmetrically front to back. The second docking grooves 23 are used to fix the second docking seat 360 with screws. The right ends of both the front and rear sides of the second top plate 36 are provided with second docking seats 360. The two second docking seats 360 are respectively connected to the two second docking grooves 23 with screws. The second docking seats 360 are used to fasten the second top plate 36 to the support base 2.

[0039] Furthermore, as shown in Figure 7, U-shaped connecting blocks 350 are provided on the opposite sides of the two L-shaped clamping trays 35 at the middle of their bottom edges. The U-shaped connecting blocks 350 are used to connect the L-shaped clamping trays 35 and the L-shaped connecting plate 34. The end of the L-shaped connecting plate 34 is located inside the U-shaped connecting blocks 350. The top of the U-shaped connecting blocks 350 has a mounting hole 351, and a fixing bolt 352 is connected to the mounting hole 351. The fixing bolt 352 is used to realize the quick assembly and disassembly of the L-shaped clamping trays 35. The threaded end of the fixing bolt 352 is threaded to the top of the L-shaped connecting plate 34, which facilitates the assembly and disassembly of the L-shaped clamping trays 35. The inner side of the L-shaped clamping trays 35 has a groove that matches the edge of the distribution box circuit board, which further ensures the stability of the distribution box circuit board. When replacing different models of distribution box circuit boards, the matching L-shaped clamping trays 35 can be replaced.

[0040] In this embodiment, the intelligent distribution box voltage withstand testing device is used by placing the two edges of the circuit board of the distribution box to be tested horizontally on the concave surfaces of the two L-shaped clamping plates 35. The handwheel 39 is manually rotated to drive the rotating rod 38, which in turn drives the worm gear 313 to rotate. The worm gear 313 meshes with the worm wheel 311, causing the worm wheel 311 to drive the symmetrically distributed lead screws 312 on both sides to rotate synchronously. The rotation of the lead screws 312 is converted into linear movement of the rectangular movable rod 33 along the rectangular guide tube 32, causing the two L-shaped connecting plates 34 and the L-shaped clamping plates 35 to move relative to each other. Approaching the circuit board, the L-shaped clamping plate 35 is fitted with the inner groove of the circuit board and clamped and fixed in the center; then the voltage withstand detector body 1 is activated, and the support base 2 moves the circuit board to below the detection probe. The detection probe descends and contacts the circuit board contacts, and a preset voltage is applied for withstand testing; after the test is completed, the handwheel 39 is rotated in the opposite direction to release the clamp and remove the circuit board; when it is necessary to replace a different model of circuit board, the fixing bolt 352 is loosened to remove the L-shaped clamping plate 35, and a matching L-shaped clamping plate 35 is replaced and re-fixed with the fixing bolt 352.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A voltage withstand detection device for an intelligent distribution box, comprising a voltage withstand detector body (1), characterized in that: The voltage withstand detector body (1) is provided with a support base (2), and the support base (2) is provided with a clamping component (3) for fixing the circuit board of the distribution box. The clamping component (3) includes a first top plate (30). The bottom of the first top plate (30) is provided with two rectangular guide tubes (32) arranged symmetrically in front and behind. A rectangular movable rod (33) is slidably connected inside the two rectangular guide tubes (32). A driving component (31) for driving the two rectangular movable rods (33) to move back and forth is provided between the two rectangular guide tubes (32). An L-shaped connecting plate (34) is provided on the top of the two rectangular movable rods (33). An L-shaped clamping support plate (35) is provided on the opposite side of the two L-shaped connecting plates (34).

2. The intelligent distribution box voltage withstand detection device according to claim 1, characterized in that: The support base (2) has a first mounting groove (20) on its top. The first mounting groove (20) is parallel to the left side of the support base (2). The first top plate (30) is located at the top inside the first mounting groove (20). The support base (2) has two first docking grooves (22) arranged symmetrically on the top of both the front and rear sides. The first top plate (30) has a first docking seat (300) on both the left and right sides and at the front and rear ends. The four first docking seats (300) are connected to the four first docking grooves (22) by screws.

3. The intelligent distribution box voltage withstand detection device according to claim 1, characterized in that: The driving component (31) includes a rectangular housing (310), and a worm gear (311) is rotatably connected between the front and rear sides of the inner wall of the rectangular housing (310). Both ends of the worm gear (311) shaft pass through the inner wall of the rectangular housing (310), and both ends of the worm gear (311) shaft are coaxially connected to a lead screw (312). The two lead screws (312) are located in two rectangular guide tubes (32) respectively.

4. The intelligent distribution box voltage withstand detection device according to claim 3, characterized in that: The two lead screws (312) are arranged symmetrically front to back, and the two rectangular movable rods (33) are threaded to the outside of the two lead screws (312).

5. The intelligent distribution box voltage withstand detection device according to claim 3, characterized in that: The inner wall of the rectangular housing (310) is rotatably connected between the left and right sides, and a worm (313) meshes with the worm gear (311). The middle of the right side of the first top plate (30) is provided with a second top plate (36). The right end of the bottom of the second top plate (36) is provided with a rectangular vertical plate (37). The left side of the rectangular vertical plate (37) is rotatably connected with a rotating rod (38) through a bearing. The left end of the rotating rod (38) is coaxially connected with the right end of the worm (313) shaft. The right end of the rotating rod (38) is provided with a handwheel (39).

6. The intelligent distribution box voltage withstand detection device according to claim 5, characterized in that: The support base (2) has a second mounting groove (21) on its top. The second mounting groove (21) is arranged perpendicularly to the first mounting groove (20). The second top plate (36) is located at the top inside the second mounting groove (21). The top right side of the support base (2) has two second docking grooves (23) arranged symmetrically in front and behind. The right ends of the front and rear sides of the second top plate (36) are provided with second docking seats (360). The two second docking seats (360) are connected to the two second docking grooves (23) respectively by screws.

7. The intelligent distribution box voltage withstand detection device according to claim 1, characterized in that: U-shaped connecting blocks (350) are provided on opposite sides of the two L-shaped clamping plates (35) at the middle of the bottom edge. The end of the L-shaped connecting plate (34) is located inside the U-shaped connecting block (350). The top of the U-shaped connecting block (350) is provided with a mounting hole (351). A fixing bolt (352) is connected to the mounting hole (351). The threaded end of the fixing bolt (352) is threaded to the top of the L-shaped connecting plate (34).

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