A leakage detection device for a distribution box

Abstract

The application provides a distribution box electric leakage detection device, and relates to the technical field of current testing.The device comprises a supporting assembly, a positioning detection assembly, a detection unit and a box detection assembly.A fixing plate is integrally formed at the bottom of the supporting assembly and is installed on the inside of the distribution box.Two supporting assemblies are provided.The positioning detection assembly, the detection unit and the box detection assembly are all installed on the inside area of the two supporting assemblies.A plurality of second connecting cables are inserted into the surface of the positioning detection assembly.The end of each first connecting cable is provided with a clamp.The application can expand the detection range and can detect a plurality of internal power elements in a targeted manner.The application can detect whether the electric leakage of each connected power equipment inside the distribution box at different positions is targeted.When the electric leakage current occurs on the surface of the box, the detection unit can avoid transmitting the current to each power element, thereby avoiding damage to the power element.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of current test, in particular to a power distribution box electric leakage detection device. BACKGROUND

[0002] The main purpose of the power distribution box electric leakage detection is to ensure the safety, stability and reliable operation of the power system, and prevent electric shock, fire and other safety accidents caused by electric leakage. The power 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 power distribution box may have electric leakage due to factors such as equipment aging, cable aging, humidity, dust, etc., which may cause serious consequences such as personal injury, property loss and even fire.

[0003] The existing technology for detecting the electric leakage of the power distribution box directly installs the current sensor inside the power distribution box, which can detect whether there is current on the surface of the power distribution box. However, since there are a large number of power equipment or components inside the power distribution box, the conventional detection device can only detect the electric leakage on the surface of the power distribution box, and cannot test the internal power equipment and components. In addition, for large power distribution boxes, if the detection distance is too far, it will also cause inaccurate measurement when there is slight electric leakage. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a power distribution box electric leakage detection device to solve the problems in the background art. The present application can expand the detection range and detect multiple internal power components, and has higher flexibility. It can detect whether each connected power equipment in the power distribution box leaks electricity at different positions, thereby expanding the detection range.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: a power distribution box electric leakage detection device, comprising a detection device body, the detection device body comprising a supporting assembly, a positioning detection assembly, a detection unit and a box detection assembly, a fixing plate is integrally formed at the bottom of the supporting assembly, and the fixing plate is installed inside the power distribution box, the supporting assembly is provided with two, the positioning detection assembly, the detection unit and the box detection assembly are all installed in the inner side area of the two supporting assemblies, a plurality of second connection cables are inserted into the surface of the positioning detection assembly, the end of each first connection cable is provided with a clamp, and the first connection cable is clamped and connected to the surface of the power component inside the power distribution box through the clamp, a sliding base is sleeved on the surface of the detection unit, the side edge of the sliding base is embedded into the inside of the positioning detection assembly, and the top of the sliding base is sleeved on the surface of the box detection assembly, a docking structure is installed at the end of the box detection assembly, and the end of the docking mechanism is used to abut against the inner wall of the power distribution box.

[0006] Further, the positioning detection assembly comprises a docking frame and a conductive plate, a sliding groove is formed on the side of the docking frame and the conductive plate, a plug-in slot is formed on the other side of the conductive plate, and a plug-in connector is connected to the end of the first connecting cable.

[0007] Further, the plug-in connector is embedded in the plug-in slot, the spacing between every two adjacent conductive plates is the same, and the two adjacent conductive plates are in an insulation state.

[0008] Further, the detection unit comprises a motor, a lead screw and a sliding base, the lead screw is inserted into the output end of the motor, a gear is connected to the end of the lead screw by a key, and a conductive sleeve is formed on the top of the sliding base.

[0009] Further, a threaded sleeve is formed on the bottom of the sliding base, the threaded sleeve is sleeved on the surface of the lead screw, an insulation layer is attached to the surface of the threaded sleeve, and a plug-in plate is integrally formed on the side of the sliding base.

[0010] Further, the plug-in plate is embedded in the sliding groove, a second connecting cable is connected to the top of the sliding base, a current sensor is connected to the end of the second connecting cable, the current sensor is connected to an external alarm system through a built-in communication module, the lead screw and the threaded sleeve are matched to control the sliding base to move in translation, and the thickness of the plug-in plate is the same as that of the sliding groove.

[0011] Further, the box detection assembly comprises an insulating column and a center rod, a fixed column is attached to one end of the insulating column, a conductive plate is integrally formed at 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] Further, the center rod is inserted into the inside of the insulating column, a conductive disc is integrally formed on the surface of the center rod, the spacing between adjacent conductive discs is the same, the conductive sleeve is sleeved on the surface of the insulating column, and the conductive sleeve is in contact with the edge of the conductive disc.

[0013] Further, the docking mechanism comprises a lifting plate and an abutting sleeve, a rack is integrally formed on one side of the lifting plate, the abutting sleeve is integrally formed on one side of the top of the lifting plate, and a compression hole is formed in the inside of the abutting sleeve.

[0014] Further, a spring rod is inserted into the inside of the compression hole, a matching plate is installed at the top end of the spring rod, the matching plate is used to abut against the top end or the bottom end of the inner wall of the power distribution box to be detected, the gear is engaged with the rack, and one end of the compression hole is in an open state while the other end is in a closed state.

[0015] The beneficial effects of the present application are:

[0016] 1. The power distribution box leakage detection device is connected with multiple power equipment in the power distribution box through the positioning detection assembly and multiple connection cables, and then the detection unit is moved along the inside of the positioning detection assembly, so that the leakage of each connected power equipment in the power distribution box can be detected at different positions, and the detection range is expanded.

[0017] 2. The power distribution box leakage detection device is provided with multiple conductive disc structures on the surface of the box detection assembly, so that the leakage of the inner wall of the box can be detected by the box detection assembly during the connection and detection of the detection unit and the positioning detection assembly, and when the leakage current occurs on the surface of the box, it can also avoid being transmitted to each power element through the detection unit, so as to avoid damaging the power element.

[0018] 3. The power distribution box leakage detection device is provided with a docking mechanism at the end of the box detection assembly, which can be lifted through the movement of the detection unit itself, and the top or bottom end of the inner wall of the power distribution box to be detected can be contacted and fitted through the lifting structure, so as to realize the docking detection of different areas of the inner wall of the power distribution box. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure diagram of the appearance of the power distribution box leakage detection device of the present application.

[0020] Figure 2 It is a connection diagram of the detection unit and the box detection assembly part of the present application.

[0021] Figure 3 It is a sectional view of the box detection assembly of the present application.

[0022] Figure 4 It is a sectional view of the positioning detection assembly part of the present application.

[0023] Figure 5 It is a sectional view of the positioning detection assembly inside the present application.

[0024] Figure 6 It is a structure diagram of the sliding base part of the present application.

[0025] Figure 7 It is a structure diagram of the sliding base part of the present application. Figure 3 It is an enlarged view of area A.

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

[0027] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0028] Please refer to Figures 1 to 7 The present application provides the following technical solutions: a power distribution box leakage detection device, comprising a detection device body, the detection device body comprising a support assembly 1, a positioning detection assembly 3, a detection unit 4 and a box detection assembly 5, the bottom of the support assembly 1 is integrally formed with a fixed plate 2, and the fixed plate 2 is installed on the inside of the power distribution box, the support assembly 1 is provided with two, the positioning detection assembly 3, the detection unit 4 and the box detection assembly 5 are all installed in the inner side area of the two support assemblies 1, the surface of the positioning detection assembly 3 is inserted with a plurality of second connecting cables 9, the end of each first connecting cable 22 is provided with a clamp 23, and the first connecting cable 22 is clamped and connected to the surface of the power element inside the power distribution box through the clamp 23, the surface of the detection unit 4 is sleeved with a sliding base 27, the side edge of the sliding base 27 is embedded into the inside of the positioning detection assembly 3, and the top of the sliding base 27 is sleeved on the surface of the box detection assembly 5, the end of the box detection assembly 5 is provided with a docking structure, and the end of the docking mechanism 6 is used for abutting against the inner wall of the power distribution box. The leakage detection device is used for detecting whether the inner wall of the power distribution box produces leakage current and whether the power element inside the power distribution box has a leakage phenomenon.

[0029] When the power distribution box is installed, the support assembly 1 at both ends is fixed to the inner wall of the power distribution box by using the bolt through the fixing plate 2, at this time, the positioning detection assembly 3, the detection unit 4 and the box detection assembly 5 on the inner side can be supported, then each power element to be detected is clamped by the clamp 23, and then the other end of the plug-in connector 21 is embedded into the positioning detection assembly 3 by the first connecting cable 22, and then the plug-in plate 26 is embedded into the positioning detection assembly 3 by the detection unit 4, and then the plug-in plate 26 is communicated with the conductive structure in the area of the different plug-in connectors 21, and then the cable can be used to detect whether the surface of the clamped power element is leaked, and the docking mechanism 6 can be used to detect whether the power distribution box is leaked by being in contact with the inner wall of the power distribution box, and the detection processes of the two parts are independent and do not interfere with each other, and the docking mechanism 6 can also change the specific detection point when detecting the surface of the power distribution box.

[0030] In the embodiment, the positioning detection assembly 3 includes the docking frame 19 and the conductive plate 24, the side of the docking frame 19 and the conductive plate 24 is provided with the sliding groove 20, the other side of the conductive plate 24 is provided with the insertion slot 25, and the end of the first connecting cable 22 is connected with the plug-in connector 21. The plug-in connector 21 is embedded into the insertion slot 25, the spacing between each group of adjacent two conductive plates 24 is the same, and the adjacent two conductive plates 24 are in the insulation state. After the positioning detection assembly 3 is connected with the plurality of power equipment in the power distribution box by the plurality of connecting cables, the detection unit 4 is used to move along the inside of the positioning detection assembly 3, and then the power equipment in the power distribution box can be detected in different positions.

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

[0032] The detection unit 4 comprises a motor 7, a lead screw 8 and a sliding base 27. The lead screw 8 is inserted into the output end of the motor 7, the end of the lead screw 8 is key-connected with a gear 33, and the top of the sliding base 27 is provided with a conductive sleeve 29. The bottom of the sliding base 27 is provided with a threaded sleeve 28, the threaded sleeve 28 is sleeved on the surface of the lead screw 8, and the surface of the threaded sleeve 28 is attached with an insulating layer. The side of the sliding base 27 is integrally formed with a plug-in plate 26. The plug-in plate 26 is used for embedding into the inside of the sliding groove 20. The top of the sliding base 27 is connected with a second connecting cable 9, and the end of the second connecting cable 9 is connected with a current sensor 10. The current sensor 10 is connected with an external alarm system through a built-in communication module. The lead screw 8 and the threaded sleeve 28 cooperate to control the sliding base 27 to move in translation. The thickness of the plug-in plate 26 is the same as the thickness of the sliding groove 20.

[0033] Specifically, after starting the motor 7, the motor 7 drives the lead screw 8 to rotate, and the lead screw 8 can drive the entire sliding base 27 to move in cooperation with the threaded sleeve 28 on the surface. After the plug-in plate 26 on the side of the sliding base 27 is embedded into the inside of the sliding groove 20, the plug-in plate 26 can be moved along the sliding groove 20 and sequentially communicated with each conductive plate 24. Once any power element corresponding to the conductive plate 24 leaks, the leakage can be detected after the motor 7 controls the sliding base 27 to move to the area of the conductive plate 24. The current is transmitted to the position of the current sensor 10 along the second connecting cable 9, the current is inducted, and an alarm signal is generated and the corresponding alarm system is started after the current is detected.

[0034] In this embodiment, the box detection assembly 5 comprises an insulating column 11 and a center rod 13. One end of the insulating column 11 is attached with a fixed column 35, and 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 center rod 13 is inserted into the inside of the insulating column 11. The surface of the center rod 13 is integrally formed with a conductive disc 14, and the spacing between adjacent conductive discs 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 the edge of the conductive disc 14. The surface of the box detection assembly 5 is provided with multiple conductive disc 14 structures. Therefore, during the connection detection process of the detection unit 4 and the positioning detection assembly 3, the box detection assembly 5 can also be used for leakage detection of the inner wall of the box. When the surface of the box produces a leakage current, the current can also be prevented from being transmitted to each power element through the detection unit 4, thereby avoiding damage to the power element.

[0035] Specifically, after the docking mechanism 6 at the end contacts and fits 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 component 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, and a supporting sleeve 18 is integrally formed on the top side 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, and a bonding plate 32 is installed on the top of the spring rod 31. The bonding plate 32 is used to lean against the top or bottom end of the inner wall of the distribution box to be tested. The gear 33 is engaged with the rack 17, and 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 raised and lowered by the movement effect of the detection unit 4 itself, and the lifting structure can control the detection device 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.

[0037] Specifically, when the screw rod 8 rotates, the gear 33 at the end will also drive the rack 17 to move up and down. After the rack 17 is lifted, the end bonding plate 32 can be driven to lift and down 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. Moreover, through the supporting effect of the spring rod 31, it is possible to ensure 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, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] Furthermore, it should be understood that although the specification is described in terms of embodiments, the specification as a whole, and each embodiment individually, does not contain only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

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 assembly (1), a positioning detection assembly (3), a detection unit (4) and a box detection assembly (5); a fixing plate (2) is integrally formed on the bottom of the support assembly (1), and the fixing plate (2) is installed on the inside of the distribution box; two support assemblies (1) are provided, and the positioning detection assembly (3), the detection unit (4) and the box detection assembly (5) are all installed in the inner area of ​​the two support assemblies (1); a plurality of first connection cables ( 22), a clamp (23) is installed at the end of each first connecting cable (22), and the first connecting cable (22) is clamped and connected to 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 docking mechanism ( 6) is used to lean against the inner wall of the distribution box, 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 to a plug connector (21), the detection unit (4) includes a motor (7), a screw rod (8) and a sliding base (27), the screw rod (8) is inserted into the output of the motor (7) At the output end, the end key of the screw rod (8) is connected to a gear (33), the top of the sliding base (27) is provided with a conductive sleeve (29), the box detection component (5) includes an insulating column (11) and a center rod (13), one end of the insulating column (11) is mounted with a fixed 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).

2. A distribution box leakage detection device according to claim 1, 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.

3. The leakage detection device for a distribution box according to claim 1, 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).

4. A distribution box leakage detection device according to claim 3, characterized in that: The plug-in 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 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 movement; the thickness of the plug-in board (26) is the same as the thickness of the slide groove (20).

5. The leakage detection device for a distribution box according to claim 1, characterized in that: A center rod (13) is inserted into the interior of the insulating column (11), and a conductive disk (14) is integrally formed on the surface of the center 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).

6. The leakage detection device for a distribution box according to claim 1, characterized in that: The docking mechanism (6) comprises a lifting plate (16) and a supporting sleeve (18), wherein a rack (17) is integrally formed on one side of the lifting plate (16), and a supporting sleeve (18) is integrally formed on one side of the top of the lifting plate (16), and a compression hole (30) is provided inside the supporting sleeve (18).

7. A distribution box leakage detection device according to claim 6, 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 or 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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