Electric leakage detection device for distribution box

Abstract

The invention provides a distribution box electric leakage detection device, and relates to the technical field of current testing, the distribution box electric leakage detection device comprises two support assemblies, a positioning detection assembly, a detection unit and a box body detection assembly, a fixing plate is integrally formed at the bottom of the support assemblies, and the fixing plate is installed in a distribution box. The positioning detection assembly, the detection unit and the box body detection assembly are all installed in the inner side areas of the two supporting assemblies, a plurality of second connecting cables are inserted into the surface of the positioning detection assembly, and a clamp is installed at the tail end of each first connecting cable. A plurality of internal power components can be detected in a targeted manner, whether each connected power device in the distribution box leaks electricity or not can be detected in a targeted manner at different positions, and when leakage current is generated on the surface of the box body, the leakage current can be prevented from being transmitted to each power component through the detection unit, so that the leakage current is prevented from being detected. And the damage to the power element is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of current testing, in particular to a leakage detection device for a distribution box. Background Art

[0002] The main purpose of leakage detection of distribution boxes is to ensure the safe, stable and reliable operation of the power system and to prevent safety accidents such as electric shock and fire caused by leakage. The distribution box is an important part of the power supply system, and its safety performance is directly related to the stability and reliability of the entire power system. In actual use, the distribution box may leak due to factors such as aging equipment, aging cables, humidity, dust, etc., which may cause serious consequences such as personal injury, property loss and even fire.

[0003] In the prior art, a leakage detection device for a distribution box can detect whether there is current on the surface of the distribution box by directly installing a current sensor inside the distribution box. However, since a large number of electrical equipment or components are installed inside the distribution box, the conventional detection device can only perform leakage detection on the surface of the distribution box, but cannot perform targeted testing on the internal electrical equipment and components. At the same time, for large distribution boxes, if a slight leakage occurs, if the detection distance is too far, it will also lead to inaccurate measurement problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a leakage detection device for a distribution box to solve the problems raised in the above-mentioned background technology. The present invention can expand the detection range and can also perform targeted detection on multiple internal power components. It has higher flexibility and can realize targeted detection of whether each connected power device inside the distribution box has leakage at different positions, thereby expanding the detection range.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a leakage detection device for a distribution box, including a detection device body, the detection device body including a support component, a positioning detection component, a detection unit and a box detection component, the bottom of the support component is integrally formed with a fixing plate, and the fixing plate is installed on the inside of the distribution box, the support components are provided with two, the positioning detection component, the detection unit and the box detection component are all installed in the inner area of ​​the two support components, a plurality of second connecting cables are inserted on the surface of the positioning detection component, a clamp is installed at the end of each first connecting cable, and the first connecting cable is clamped and connected to the surface of the power element inside the distribution box through the clamp, the surface of the detection unit is sleeved with a sliding base, the side of the sliding base is embedded in the interior of the positioning detection component, and the top of the sliding base is sleeved on the surface of the box detection component, the end of the box detection component is installed with a docking structure, and the end of the docking mechanism is used to lean against the inner wall of the distribution box.

[0006] Furthermore, the positioning detection component includes a docking frame and a conductive plate, the sides of the docking frame and the conductive plate are provided with sliding grooves, the other side of the conductive plate is provided with a slot, and the end of the first connecting cable is connected to a plug connector.

[0007] Furthermore, the plug connector is embedded in the slot, the distance between two adjacent conductive plates in each group is the same, and the two adjacent conductive plates are insulated from each other.

[0008] Furthermore, the detection unit includes a motor, a screw rod and a sliding base. The screw rod is inserted into the output end of the motor, the end of the screw rod is keyed to a gear, and a conductive sleeve is provided on the top of the sliding base.

[0009] Furthermore, a threaded sleeve is provided at the bottom of the sliding base, the threaded sleeve is sleeved on the surface of the screw rod, and an insulating layer is attached to the surface of the threaded sleeve. A plug-in board is integrally formed on the side of the sliding base.

[0010] Furthermore, the plug-in board is used to be embedded in the interior of the slide groove, the top of the sliding base is connected to a second connecting cable, the end of the second connecting cable is connected to a current sensor, the current sensor is connected to an external alarm system through a built-in communication module, the screw rod and the threaded sleeve cooperate to control the sliding base to perform translational movement, and the thickness of the plug-in board is the same as the thickness of the slide groove.

[0011] Furthermore, the box detection assembly includes an insulating column and a center rod, a fixing column is mounted on one end of the insulating column, a conductive plate is integrally formed on the other end of the insulating column, a guide sleeve is integrally formed on the side of the conductive plate, and the docking mechanism passes through the inside of the guide sleeve.

[0012] Furthermore, a center rod is inserted inside the insulating column, a conductive disk is integrally formed on the surface of the center rod, and the spacing between adjacent conductive disks is the same. The conductive sleeve is sleeved on the surface of the insulating column, and the conductive sleeve is used to contact and fit with the edge of the conductive disk.

[0013] Furthermore, the docking mechanism includes a lifting plate and a supporting sleeve, a rack is integrally formed on one side of the lifting plate, a supporting sleeve is integrally formed on the top side of the lifting plate, and a compression hole is opened inside the supporting sleeve.

[0014] Furthermore, a spring rod is inserted into the interior of the compression hole, and a fitting plate is installed on the top end of the spring rod. The fitting plate is used to lean against the top or bottom end of the inner wall of the distribution box to be tested, the gear and the rack are meshed, and one end of the compression hole is in an open state and the other end is in a closed state.

[0015] Beneficial effects of the present invention:

[0016] 1. The leakage detection device for the distribution box is connected to multiple power devices inside the distribution box by means of a positioning detection component with the help of multiple connecting cables, and then the detection unit is moved along the inside of the positioning detection component. It can realize targeted detection of whether each connected power device inside the distribution box has leakage at different positions, thereby expanding the detection range.

[0017] 2. The leakage detection device of the distribution box is provided with multiple conductive disk structures on the surface of the box detection component. Therefore, during the connection detection process between the detection unit and the positioning detection component, the box detection component can also be used to perform leakage detection on the inner wall of the box. When leakage current is generated on the surface of the box, it can also be avoided from being transmitted to each power component through the detection unit, thereby avoiding damage to the power components.

[0018] 3. The leakage detection device for the distribution box is equipped with a docking mechanism at the end of the box detection component. The docking mechanism can be raised and lowered through the movement effect of the detection unit itself, and the detection device can be controlled by the lifting structure to contact and fit the top or bottom end of the inner wall of the distribution box to be tested, thereby realizing docking detection processing of different areas of the inner wall of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a leakage detection device for a distribution box according to the present invention;

[0020] Figure 2 It is a schematic diagram of the connection between the detection unit and the box detection component of the present invention;

[0021] Figure 3 is a cross-sectional view of the box detection assembly of the present invention;

[0022] Figure 4 It is a cross-sectional view of the positioning detection component part of the present invention;

[0023] Figure 5 A cross-sectional view of the interior of the positioning detection assembly of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the sliding base part of the present invention;

[0025] Figure 7 for Figure 3 A magnified image of area A;

[0026] In the figure: 1. support assembly; 2. fixing plate; 3. positioning detection assembly; 4. detection unit; 5. box detection assembly; 6. docking mechanism; 7. motor; 8. lead screw; 9. second connecting cable; 10. current sensor; 11. insulating column; 12. guide sleeve; 13. center rod; 14. conductive disk; 15. lifting channel; 16. lifting plate; 17. rack; 18. supporting sleeve; 19. docking frame; 20. slide groove; 21. plug connector; 22. first connecting cable; 23. clamp; 24. conductive plate; 25. slot; 26. plug board; 27. sliding base; 28. threaded sleeve; 29. ​​conductive sleeve; 30. compression hole; 31. spring rod; 32. bonding plate; 33. gear; 34. connecting column; 35. fixing column. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7 The present invention provides the following technical solutions: a leakage detection device for a distribution box, comprising a detection device body, the detection device body comprising a support component 1, a positioning detection component 3, a detection unit 4 and a box detection component 5, the bottom of the support component 1 is integrally formed with a fixing plate 2, and the fixing plate 2 is installed on the inside of the distribution box, the support component 1 is provided with two, the positioning detection component 3, the detection unit 4 and the box detection component 5 are all installed in the inner area of ​​the two support components 1, a plurality of second connection cables 9 are inserted on the surface of the positioning detection component 3, a clamp 23 is installed at the end of each first connection cable 22, and the first connection cable 22 is clamped and connected with the surface of the power element inside the distribution box through the clamp 23, the surface of the detection unit 4 is sleeved with a sliding base 27, the side of the sliding base 27 is embedded in the interior of the positioning detection component 3, and the top of the sliding base 27 is sleeved on the surface of the box detection component 5, the end of the box detection component 5 is installed with a docking structure, and the end of the docking mechanism 6 is used to lean against the inner wall of the distribution box. The leakage detection device is used to detect whether leakage current is generated on the inner wall of the distribution box and whether leakage occurs in the power components inside the box.

[0029] When the present invention is installed, the support components 1 at both ends are fixed to the inner wall of the distribution box respectively after the bolts are passed through the fixing plate 2. At this time, the inner positioning detection component 3, the detection unit 4 and the box detection component 5 can be provided with a support effect. Then, each power component that needs to be detected is clamped by the clamp 23, and then the plug connector 21 at the other end is partially embedded into the interior of the positioning detection component 3 with the help of the first connecting cable 22. Subsequently, the plug board 26 is embedded into the interior of the positioning detection component 3 through the detection unit 4. After being connected with the conductive structures in the areas where different plug connectors 21 are located, the cable can be used to detect whether there is leakage on the surface of the power component connected and clamped. At the same time, after the docking mechanism 6 is contacted and fitted with the inner wall of the distribution box, it is possible to detect whether there is leakage inside the distribution box. The detection processes of the two parts are independent of each other and will not interfere with each other. With the lifting effect of the docking mechanism 6 itself, the specific detection point can also be changed when the leakage detection is performed on the surface of the distribution box.

[0030] In this embodiment, the positioning detection component 3 includes a docking frame 19 and a conductive plate 24. The sides of the docking frame 19 and the conductive plate 24 are provided with a slide groove 20. The other side of the conductive plate 24 is provided with a slot 25. The end of the first connecting cable 22 is connected with a plug connector 21. The plug connector 21 is embedded in the slot 25. The spacing between each group of two adjacent conductive plates 24 is the same, and the two adjacent conductive plates 24 are insulated from each other. After the positioning detection component 3 is connected to multiple power devices inside the distribution box with the help of multiple connecting cables, the detection unit 4 is used to move along the inside of the positioning detection component 3, so that each connected power device inside the distribution box can be detected at different positions to see if it has leakage, thereby expanding the detection range.

[0031] Specifically, a plurality of conductive plates 24 are embedded inside the positioning detection component 3. After the plug connector 21 at one end is embedded into the slot 25 with the help of the first connecting cable 22, and the clamp 23 at the other end is connected to the power element to be detected, when leakage occurs on the surface of the power element, the current is transmitted to the conductive plate 24 with the help of the clamp 23, the first connecting cable 22, and the plug connector 21. Subsequently, when the sliding base 27 is controlled by the detection unit 4 to slide along the slide groove 20 inside the docking frame 19, the plug plate 26 on the sliding base 27 moves to the slide groove 20 area corresponding to the conductive plate 24, and the leakage phenomenon of the power element can be detected.

[0032] In this embodiment, the detection unit 4 includes a motor 7, a screw rod 8 and a sliding base 27. The screw rod 8 is inserted at the output end of the motor 7. The end of the screw rod 8 is keyed to a gear 33. A conductive sleeve 29 is provided at the top of the sliding base 27. A threaded sleeve 28 is provided at the bottom of the sliding base 27. The threaded sleeve 28 is sleeved on the surface of the screw rod 8, and an insulating layer is attached to the surface of the threaded sleeve 28. A plug-in board 26 is integrally formed on the side of the sliding base 27. The plug-in board 26 is used to be embedded in the inside of the slide 20. The top of the sliding base 27 is connected to a second connecting cable 9. The end of the second connecting cable 9 is connected to a current sensor 10. The current sensor 10 is connected to an external alarm system through a built-in communication module. The screw rod 8 and the threaded sleeve 28 cooperate to control the sliding base 27 to perform translational motion. The thickness of the plug-in board 26 is the same as that of the slide 20.

[0033] Specifically, after starting the motor 7, the motor 7 drives the screw rod 8 to rotate, and the screw rod 8 can cooperate with the threaded sleeve 28 on the surface to drive the entire sliding base 27 to move. After the plug-in board 26 on the side of the sliding base 27 is embedded in the interior of the slide groove 20, the plug-in board 26 can be moved along the slide groove 20 and connected with each conductive plate 24 in sequence. Once the power element corresponding to any conductive plate 24 has a leakage phenomenon, the leakage phenomenon can be detected after the motor 7 controls the sliding base 27 to move to the area of ​​the conductive plate 24, and the current can be transmitted along the second connecting cable 9 to the position of the current sensor 10 to realize the sensing of the current, and an alarm signal is generated after the current is detected and the corresponding alarm system is activated.

[0034] In this embodiment, the box detection component 5 includes an insulating column 11 and a center rod 13, one end of the insulating column 11 is attached with a fixing column 35, the other end of the insulating column 11 is integrally formed with a conductive plate 24, the side of the conductive plate 24 is integrally formed with a guide sleeve 12, and the docking mechanism 6 passes through the inside of the guide sleeve 12. The inside of the insulating column 11 is inserted with a center rod 13, the surface of the center rod 13 is integrally formed with a conductive disk 14, and the spacing between adjacent conductive disks 14 is the same, the conductive sleeve 29 is sleeved on the surface of the insulating column 11, and the conductive sleeve 29 is used to contact and fit with the edge of the conductive disk 14. There are multiple conductive disk 14 structures on the surface of the box detection component 5, so in the process of connecting and detecting the detection unit 4 and the positioning detection component 3, the box detection component 5 can also be used to perform leakage detection on the inner wall of the box, and when the leakage current is generated on the surface of the box, it can also be avoided from being transmitted to each power component through the detection unit 4, thereby avoiding damage to the power component.

[0035] Specifically, after the docking mechanism 6 at the end is in contact with the inner wall of the distribution box to be tested, once current appears on the surface of the distribution box, the current can be transmitted to the center rod 13 of the box detection assembly 5, and synchronously transmitted to the area of ​​each conductive disk 14. Therefore, when the sliding base 27 is driven by the detection unit 4 to move along the surface of the insulating column 11, when the conductive sleeve 29 comes into contact with the conductive disk 14, the current on the distribution box can be transmitted to the sliding base 27 and also transmitted to the current sensor 10 to generate an alarm signal. After the conductive sleeve 29 comes into contact with any conductive disk 14, it will be staggered with the corresponding conductive plate 24 to prevent the current from being transmitted in reverse through the conductive plate 24 to the power element.

[0036] In this embodiment, the docking mechanism 6 includes a lifting plate 16 and a supporting sleeve 18. A rack 17 is integrally formed on one side of the lifting plate 16. A supporting sleeve 18 is integrally formed on one side of the top of the lifting plate 16. A compression hole 30 is provided inside the supporting sleeve 18. A spring rod 31 is inserted into the compression hole 30. A bonding plate 32 is installed at the top of the spring rod 31. The bonding plate 32 is used to lean against the top or bottom of the inner wall of the distribution box to be tested. The gear 33 is meshed with the rack 17. One end of the compression hole 30 is in an open state and the other end is in a closed state. A docking mechanism 6 is installed at the end of the box detection component 5. The docking mechanism 6 can be lifted and lowered by the movement effect of the detection unit 4 itself, and the detection device can be controlled by the lifting structure to contact and fit the top or bottom of the inner wall of the distribution box to be tested, thereby realizing docking detection processing of different areas of the inner wall of the distribution box.

[0037] Specifically, while the screw rod 8 rotates, it will also drive the rack 17 to move up and down with the help of the gear 33 at the end. After the rack 17 is lifted, the end bonding plate 32 can be driven to lift and lower through the lifting plate 16 and the abutting sleeve 18. Therefore, the top and bottom bonding plates 32 will switch the bonding state with the transmission effect of the gear 33 and the rack 17. After being respectively bonded to the top and bottom of the inner wall of the distribution box, the purpose of current connection can be achieved from different positions on the surface of the distribution box. In addition, through the supporting effect of the spring rod 31, it can be ensured that the bonding plate 32 always remains in contact with the inner wall of the distribution box within a certain lifting range of the rack 17 and the lifting plate 16. Therefore, when the screw rod 8 drives the sliding base 27 to slide in the area at both ends of the screw rod 8, the entire box detection assembly 5 can always remain connected with the inner wall of the distribution box.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A leakage detection device for a distribution box, comprising a detection device body, characterized in that: The detection device body comprises a support component (1), a positioning detection component (3), a detection unit (4) and a box detection component (5); a fixing plate (2) is integrally formed at the bottom of the support component (1), and the fixing plate (2) is installed inside the distribution box; two support components (1) are provided, and the positioning detection component (3), the detection unit (4) and the box detection component (5) are all installed in the inner area of ​​the two support components (1); a plurality of second connection cables (9) are inserted on the surface of the positioning detection component (3), and each first connection cable (9) is connected to the second connection cable (9) of the first connection cable (9). The ends of the connecting cables (22) are all equipped with clamps (23), and the first connecting cables (22) are clamped and connected to the surface of the power element inside the distribution box through the clamps (23). The surface of the detection unit (4) is sleeved with a sliding base (27), the side of the sliding base (27) is embedded in the interior of the positioning detection component (3), and the top of the sliding base (27) is sleeved on the surface of the box detection component (5). The end of the box detection component (5) is equipped with a docking structure, and the end of the docking mechanism (6) is used to lean against the inner wall of the distribution box.

2. A distribution box leakage detection device according to claim 1, characterized in that: The positioning detection component (3) comprises a docking frame (19) and a conductive plate (24); a slide groove (20) is provided on the side of the docking frame (19) and the conductive plate (24); a slot (25) is provided on the other side of the conductive plate (24); and a plug connector (21) is connected to the end of the first connecting cable (22).

3. A distribution box leakage detection device according to claim 2, characterized in that: The plug connector (21) is embedded in the slot (25), the spacing between two adjacent conductive plates (24) in each group is the same, and the two adjacent conductive plates (24) are insulated from each other.

4. A distribution box leakage detection device according to claim 2, characterized in that: The detection unit (4) comprises a motor (7), a screw rod (8) and a sliding base (27); the screw rod (8) is inserted into the output end of the motor (7); the end of the screw rod (8) is keyed to a gear (33); and a conductive sleeve (29) is provided on the top of the sliding base (27).

5. A distribution box leakage detection device according to claim 4, characterized in that: A threaded sleeve (28) is provided at the bottom of the sliding base (27), the threaded sleeve (28) is sleeved on the surface of the screw rod (8), and an insulating layer is attached to the surface of the threaded sleeve (28), and a plug-in board (26) is integrally formed on the side of the sliding base (27).

6. A distribution box leakage detection device according to claim 5, characterized in that: The plug board (26) is used to be embedded in the interior of the slide groove (20); the top of the sliding base (27) is connected to a second connecting cable (9); the end of the second connecting cable (9) is connected to a current sensor (10); the current sensor (10) is connected to an external alarm system via a built-in communication module; the screw rod (8) and the threaded sleeve (28) cooperate to control the sliding base (27) to perform translational movement; the thickness of the plug board (26) is the same as the thickness of the slide groove (20).

7. A distribution box leakage detection device according to claim 4, characterized in that: The box detection component (5) comprises an insulating column (11) and a center rod (13); a fixing column (35) is mounted on one end of the insulating column (11); a conductive plate (24) is integrally formed on the other end of the insulating column (11); a guide sleeve (12) is integrally formed on the side of the conductive plate (24); and the docking mechanism (6) passes through the interior of the guide sleeve (12).

8. A distribution box leakage detection device according to claim 7, characterized in that: A central rod (13) is inserted into the interior of the insulating column (11); a conductive disk (14) is integrally formed on the surface of the central rod (13); and the spacing between adjacent conductive disks (14) is the same; the conductive sleeve (29) is sleeved on the surface of the insulating column (11), and the conductive sleeve (29) is used to contact and fit with the edge of the conductive disk (14).

9. A distribution box leakage detection device according to claim 7, characterized in that: The docking mechanism (6) comprises a lifting plate (16) and a supporting sleeve (18); a rack (17) is integrally formed on one side of the lifting plate (16); a supporting sleeve (18) is integrally formed on the top side of the lifting plate (16); and a compression hole (30) is provided inside the supporting sleeve (18).

10. A distribution box leakage detection device according to claim 9, characterized in that: A spring rod (31) is inserted into the compression hole (30), and a bonding plate (32) is installed at the top end of the spring rod (31). The bonding plate (32) is used to lean against the top end or the bottom end of the inner wall of the distribution box to be tested. The gear (33) and the rack (17) are meshed, and one end of the compression hole (30) is in an open state and the other end is in a closed state.

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