A high and low voltage distribution cabinet with fault detection function and method

Abstract

The present invention discloses a high and low voltage power distribution cabinet and method with fault detection function, including a power distribution cabinet, a mounting frame fixedly connected to the rear side of the inner cavity of the power distribution cabinet, a main switch installed near the top of the front side of the mounting frame, and a plurality of relays installed near the bottom of the front side of the mounting frame, and the plurality of relays are linearly arranged from left to right. The present invention can detect the expansion degree of the cable due to temperature reasons through the coordination between the fourth clamping plate, the third clamping plate, the second clamping plate, the first clamping plate, the T-plate, the welding plate, the connecting plate, the second cross bar, the first cross bar, the cross plate, the translation plate, the linkage plate, the bonding plate, the upper plate, the triangle plate, the spring, the movable rod and other components, and take corresponding measures according to the detection result to prevent the cable from running for a long time at high temperature, which will accelerate its aging process, shorten the service life of the cable, and even cause the cable to fail or short-circuit.

Description

Technical Field

[0001] The present invention relates to the technical field of high and low voltage power distribution cabinets, and in particular to a high and low voltage power distribution cabinet with a fault detection function and a method thereof. Background Art

[0002] High and low voltage distribution cabinets are distribution equipment used for power distribution, control, metering and cable connection in power supply systems. In power supply bureaus and substations, high voltage switch cabinets are used to receive electric energy and lead it to low voltage distribution cabinets after voltage reduction through transformers. Low voltage distribution cabinets further distribute electric energy to various power distribution boards, control boxes and switch boxes. These distribution cabinets are assembled into one by switches, circuit breakers, fuses, buttons, indicator lights, meters, wires and other protective devices to achieve the design functional requirements.

[0003] There may be many faults in the operation of high and low voltage distribution cabinets. Due to the heat generated when the current passes through, if the ventilation inside the cabinet is poor or the ambient temperature is too high, the temperature of the distribution cabinet may be too high. High temperature will cause the expansion of the conductor inside the cable and the softening of the insulating material. The cable as a whole may become twisted or expanded. The existing high and low voltage distribution cabinets cannot detect the expansion of the cable caused by temperature, which may easily cause economic losses. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high and low voltage power distribution cabinet with a fault detection function, comprising a power distribution cabinet, a mounting frame is fixedly connected to the rear side of the inner cavity of the power distribution cabinet, a main switch is installed at the front side of the mounting frame near the top, a plurality of relays are installed at the front side of the mounting frame near the bottom, and the plurality of relays are linearly arranged from left to right, the tops of the plurality of relays are electrically connected to cables, the other ends of the plurality of cables are installed at the bottom of the main switch, a fixing box is fixedly connected to the front side of the mounting frame, openings are provided on the upper and lower sides of the fixing box, the two openings are connected to the inner cavity of the fixing box, the fixing box is located below the main switch, the tops of the plurality of cables pass through the inner cavity of the fixing box, and the inner cavity of the fixing box has The harness is constructed so that when the harness is in the form of a screw thread, the spring is turned on and off, and the threads engaged with the threaded splint are turned on and off, and the two ends of the harness are connected by a screw thread, and the two ends of the harness are connected by a screw thread, and the two ends of the harness are connected by a screw thread. The inner cavity of the fixing box is provided with a plurality of second clamping plates near the rear side, and a plurality of second clamping plates have a first clamping plate on the left side, the distance between the first clamping plate from front to back is greater than the second clamping plate, and the corresponding sides of the second clamping plate and the first clamping plate are both in contact with the adjacent cable, and a second sliding rod is commonly passed through the inner cavities of the plurality of second clamping plates and the first clamping plates, and a first sliding rod is commonly passed through the inner cavities of the plurality of first clamping plates, and a return spring is commonly fixedly connected between the second clamping plates and the first clamping plates, and the left and right ends of the first sliding rod and the second sliding rod are commonly sleeved with a fixing plate, and the rear sides of the two fixing plates are commonly fixedly connected with a horizontal plate, and the top center of the horizontal plate is fixedly connected with a vertical plate, and the front side of the vertical plate is fixedly connected with a limiting plate near the top, and the inner cavity of the limiting plate is provided with a The tops of the fourth splint, the third splint, the second splint and the first splint are all fixedly connected with a linkage plate, the linkage plates located on the tops of the fourth splint and the third splint pass through the annular opening, the linkage plates located on the tops of the first splint and the second splint pass through the strip opening, and the tops of several linkage plates are fixedly connected with a translation plate, the tops of the T-shaped plate and the limiting plate are both fitted with adjacent translation plates, the tops of the T-shaped plate and the limiting plate are fixedly connected with several upper plates, and several upper plates are linearly arranged from left to right, a groove is provided on the top of the upper plate, two grooves are provided on the top of the upper plate near the front side, the two grooves are connected with the groove, the translation plate on the left side is fixedly connected with a fitting plate, and a triangle is provided on the front side of the fitting plate,The inner cavity of the slot is movably connected with a triangle plate, the front side of the triangle plate is fixedly connected with a movable rod, the front end of the movable rod passes through the inner cavity of the slot, a spring is sleeved on the outer side of the movable rod, the front end of the spring is fixedly connected to the triangle plate, and the rear end of the spring is fixedly connected to the inner wall of the slot, the center of the front side of the upper plate is fixedly connected with a middle plate, the front side of the middle plate is fixedly connected with a front plate, and two trigger switches are installed on the rear side of the front plate, a radiator is installed at the bottom of the power distribution cabinet, the trigger switch on the right side is electrically connected to the radiator, a heat sink is provided on the top of the power distribution cabinet, and the trigger switch on the left side is electrically connected to the main switch.

[0005] A high and low voltage distribution cabinet and method with fault detection function, comprising the following steps:

[0006] S1: First, when installing cables, the staff can pass several cables through the fourth clamping plate, the third clamping plate, the second clamping plate and the first clamping plate. The fourth clamping plate and the third clamping plate can clamp adjacent cables through the fixing spring, and the first clamping plate and the second clamping plate can clamp adjacent cables through the reset spring;

[0007] S2: When the cable generates high temperature, the insulation layer on the outside of the cable may expand, thereby driving the fourth clamping plate and the third clamping plate, the first clamping plate and the second clamping plate to move away from each other. When the fourth clamping plate moves to the left, it can drive the adjacent linkage plate to move to the left. When the linkage plate on the left moves to the left, it can drive the translation plate to move to the left. When the translation plate moves to the left, it can drive the bonding plate to move to the left.

[0008] S3: When the bonding plate moves to the left, it may first contact the triangular plate on the right. When the triangular plate on the right is activated, the radiator may be activated. When the radiator is activated, the inner cavity of the power distribution cabinet and the cables may be cooled.

[0009] S4: When the laminating plate moves to the left, the triangle plate on the left can be triggered. At this time, it can be determined that the cable is seriously heated. The triangle plate on the left can turn off the main switch to prevent the situation from getting worse.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The present invention can detect the expansion degree of the cable due to temperature reasons and take corresponding measures according to the detection results to prevent the cable from running for a long time at high temperature, which will accelerate its aging process, shorten the service life of the cable, and even cause the cable to fail or short-circuit, through the coordination between the fourth clamping plate, the third clamping plate, the second clamping plate, the first clamping plate, the T-plate, the welding plate, the connecting plate, the second cross bar, the first cross bar, the cross plate, the translation plate, the linkage plate, the bonding plate, the upper plate, the triangular plate, the spring, the movable rod and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of the limiting plate component of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the T-shaped plate component of the present invention;

[0016] Figure 5 It is a top view of the upper plate structure of the component of the present invention.

[0017] Numbers in the figure: 1. distribution cabinet; 2. mounting frame; 3. heat sink; 4. main switch; 5. cable; 6. relay; 7. radiator; 8. fixing box; 9. horizontal plate; 10. fixing plate; 11. vertical plate; 12. limit plate; 13. first slide bar; 14. second slide bar; 15. first clamping plate; 16. second clamping plate; 17. connecting plate; 18. first cross bar; 19. second cross bar; 20. T-plate; 21. welding plate; 22. positioning plate; 23. third clamping plate; 24. fourth clamping plate; 25. linkage plate; 26. translation plate; 27. bonding plate; 28. upper plate; 29. ​​front plate; 30. trigger switch; 31. triangle plate; 32. movable rod; 33. spring; 34. middle plate. DETAILED DESCRIPTION

[0018] See also Figure 1-5The present invention provides a technical solution: a high and low voltage power distribution cabinet with a fault detection function, comprising a power distribution cabinet 1, a mounting frame 2 is fixedly connected to the rear side of the inner cavity of the power distribution cabinet 1, a main switch 4 is installed near the top of the front side of the mounting frame 2, a plurality of relays 6 are installed near the bottom of the front side of the mounting frame 2, and the plurality of relays 6 are linearly arranged from left to right, the tops of the plurality of relays 6 are electrically connected to cables 5, the other ends of the plurality of cables 5 are installed at the bottom of the main switch 4, a fixing box 8 is fixedly connected to the front side of the mounting frame 2, the fixing box 8 is provided with openings on both the upper and lower sides, the two openings are connected with the inner cavity of the fixing box 8, the fixing box 8 is located below the main switch 4, the tops of the plurality of cables 5 are connected with the inner cavity of the fixing box 8, the inner cavity of the fixing box 8 has a plurality of fourth clamping plates 24, and the plurality of fourth clamping plates 24 There is a third clamping plate 23 on the right side, the fourth clamping plate 24 and the side corresponding to the third clamping plate 23 are both in contact with the adjacent cable 5, the distance between the third clamping plate 23 from front to back is greater than the distance of the fourth clamping plate 24, the inner cavities of the third clamping plate 23 and the fourth clamping plate 24 are commonly penetrated by a first cross bar 18, the inner cavities of several third clamping plates 23 are commonly penetrated by a second cross bar 19, the third clamping plate 23 and the fourth clamping plate 24 are commonly fixedly connected with a fixing spring, the left and right ends of the first cross bar 18 and the second cross bar 19 are commonly sleeved with a connecting plate 17, the front sides of the two connecting plates 17 are commonly fixedly connected with a positioning plate 22, the top center of the positioning plate 22 is fixedly connected with a welding plate 21, the rear side of the welding plate 21 is fixedly connected with a T-shaped plate 20 near the top, and the inner cavity of the T-shaped plate 20 is provided with a ring-shaped opening.

[0019] The inner cavity of the fixing box 8 is provided with a plurality of second clamping plates 16 near the rear side, and the left side of the plurality of second clamping plates 16 is provided with a first clamping plate 15, and the distance between the first clamping plate 15 from front to back is greater than that between the second clamping plates 16, and the corresponding sides of the second clamping plates 16 and the first clamping plates 15 are both in contact with the adjacent cable 5, and the inner cavities of the plurality of second clamping plates 16 and the first clamping plates 15 are jointly penetrated with a second slide bar 14, and the inner cavities of the plurality of first clamping plates 15 are jointly penetrated with a first slide bar 13, and the second clamping plates 16 and the first clamping plates 15 are jointly fixedly connected with a reset spring, and the left and right ends of the first slide bar 13 and the second slide bar 14 are jointly A fixed plate 10 is sleeved together, and the rear sides of the two fixed plates 10 are fixedly connected to a horizontal plate 9, and a vertical plate 11 is fixedly connected to the center of the top of the horizontal plate 9. The front side of the vertical plate 11 is fixedly connected to a limit plate 12 near the top, and a strip-shaped opening is opened in the inner cavity of the limit plate 12. The fourth splint 24, the third splint 23, the second splint 16 and the first splint 15 are all fixedly connected to the top of the linkage plate 25. The linkage plates 25 located at the top of the fourth splint 24 and the third splint 23 all pass through the annular opening, and the linkage plates 25 located at the top of the first splint 15 and the second splint 16 all pass through the strip opening, and the tops of several linkage plates 25 The translation plates 26 are fixedly connected, the tops of the T-shaped plates 20 and the limiting plates 12 are fitted with the adjacent translation plates 26, the tops of the T-shaped plates 20 and the limiting plates 12 are fixedly connected with a plurality of upper plates 28, the plurality of upper plates 28 are linearly arranged from left to right, a groove is provided on the top of the upper plates 28, two grooves are provided near the front side of the top of the upper plates 28, the two grooves are connected with the grooves, the translation plates 26 on the left are fixedly connected with the fitting plates 27, the front side of the fitting plates 27 is provided with a triangle, the inner cavity of the groove is movably connected with a triangular plate 31, and the front side of the triangular plate 31 is fixedly connected with a movable rod 3 2. The front end of the movable rod 32 passes through the inner cavity of the slot, and a spring 33 is sleeved on the outer side of the movable rod 32. The front end of the spring 33 is fixedly connected to the triangular plate 31, and the rear end of the spring 33 is fixedly connected to the inner wall of the slot. A middle plate 34 is fixedly connected to the front center of the upper plate 28, and a front plate 29 is fixedly connected to the front side of the middle plate 34. Two trigger switches 30 are installed on the rear side of the front plate 29. A radiator 7 is installed at the bottom of the distribution cabinet 1, and the trigger switch 30 on the right is electrically connected to the radiator 7. A heat sink 3 is provided on the top of the distribution cabinet 1, and the trigger switch 30 on the left is electrically connected to the main switch 4.

[0020] A high and low voltage distribution cabinet and method with fault detection function, comprising the following steps:

[0021] S1: First, when installing the cables 5, the staff can pass several cables 5 through the fourth clamping plate 24, the third clamping plate 23, the second clamping plate 16 and the first clamping plate 15. The fourth clamping plate 24 and the third clamping plate 23 can clamp adjacent cables 5 through the fixing spring, and the first clamping plate 15 and the second clamping plate 16 can clamp adjacent cables 5 through the reset spring;

[0022] S2: When the cable 5 generates high temperature, the insulating layer outside the cable 5 may expand, thereby driving the fourth clamping plate 24 and the third clamping plate 23, the first clamping plate 15 and the second clamping plate 16 to move away from each other. When the fourth clamping plate 24 moves to the left, it can drive the adjacent linkage plate 25 to move to the left. When the linkage plate 25 on the left side moves to the left, it can drive the translation plate 26 to move to the left. When the translation plate 26 moves to the left, it can drive the bonding plate 27 to move to the left.

[0023] S3: When the laminating plate 27 moves to the left, it may first contact the triangular plate 31 on the right. When the triangular plate 31 on the right is activated, the radiator 7 may be activated. When the radiator 7 is activated, the inner cavity of the power distribution cabinet 1 and the cable 5 may be cooled.

[0024] S4: When the bonding plate 27 moves to the left, the triangular plate 31 on the left side can be triggered. At this time, it can be determined that the cable 5 is seriously heated. The triangular plate 31 on the left side can turn off the main switch 4 to prevent the situation from worsening. Working principle: First, when installing the cables 5, the staff can pass several cables 5 through the fourth clamping plate 24, the third clamping plate 23, the second clamping plate 16 and the first clamping plate 15. The fourth clamping plate 24 and the third clamping plate 23 can clamp the adjacent cables 5 through the fixing spring, and the first clamping plate 15 and the second clamping plate 16 can clamp the adjacent cables 5 through the reset spring. When the cable 5 generates high temperature, the insulating layer on the outside of the cable 5 can expand, thereby driving the fourth clamping plate 24 and the third clamping plate 23, the first clamping plate 15 and the second clamping plate 16 to move away from each other. When the fourth clamping plate 24 moves to the left, it can drive the adjacent linkage plate 25 to move to the left. When the linkage plate 25 on the left side moves to the left, it can drive the translation plate 26 to move to the left. When the translation plate 26 moves to the left, it can drive the bonding plate 27 to move to the left. When the bonding plate 27 moves to the left, it can first contact with the triangular plate 31 on the right. When the triangular plate 31 on the right is started, the radiator 7 can be started. When the radiator 7 is started, the inner cavity of the distribution cabinet 1 can be cooled, and the cable 5 can be cooled at the same time. When the bonding plate 27 moves to the left, the triangular plate 31 on the left can be triggered. At this time, it can be determined that the cable 5 is seriously heated. The triangular plate 31 on the left can turn off the main switch 4 to prevent the situation from worsening.

Claims

1. A high and low voltage power distribution cabinet with a fault detection function, comprising a power distribution cabinet (1), characterized in that: The rear side of the inner cavity of the power distribution cabinet (1) is fixedly connected to a mounting frame (2), a main switch (4) is installed on the front side of the mounting frame (2) near the top, a plurality of relays (6) are installed on the front side of the mounting frame (2) near the bottom, and the plurality of relays (6) are linearly arranged from left to right, the tops of the plurality of relays (6) are electrically connected to cables (5), the other ends of the plurality of cables (5) are installed at the bottom of the main switch (4), the front side of the mounting frame (2) is fixedly connected to a fixing box (8), the upper and lower sides of the fixing box (8) are provided with openings, the two openings are connected to the inner cavity of the fixing box (8), the fixing box (8) is located below the main switch (4), and the tops of the plurality of cables (5) are connected to the fixing box (8). The fixing box (8) is penetrated through the inner cavity of the fixing box (8), the inner cavity of the fixing box (8) has a plurality of fourth clamping plates (24), and the right side of the plurality of fourth clamping plates (24) is provided with a third clamping plate (23), the corresponding sides of the fourth clamping plate (24) and the third clamping plate (23) are both in contact with the adjacent cable (5), the distance between the third clamping plate (23) from front to back is greater than the distance between the fourth clamping plate (24), the inner cavities of the third clamping plate (23) and the fourth clamping plate (24) are penetrated by a first cross bar (18), the inner cavities of the plurality of third clamping plates (23) are penetrated by a second cross bar (19), the third clamping plate (23) and the fourth clamping plate (24) are both fixedly connected with a fixing spring, the first cross bar (18) The left and right ends of the second cross bar (19) are jointly sleeved with a connecting plate (17), the front sides of the two connecting plates (17) are jointly fixedly connected with a positioning plate (22), the top center of the positioning plate (22) is fixedly connected with a welding plate (21), the rear side of the welding plate (21) is fixedly connected with a T-shaped plate (20) near the top, the inner cavity of the T-shaped plate (20) is provided with an annular opening, the inner cavity of the fixing box (8) is provided with a plurality of second clamping plates (16) near the rear side, the left sides of the plurality of second clamping plates (16) are each provided with a first clamping plate (15), the distance between the first clamping plates (15) from front to back is greater than that between the second clamping plates (16), and the second clamping plates (16) and the first clamping plates (15) are both adjacent to each other on one side. The cable (5) is fitted, a plurality of the second clamping plates (16) and the first clamping plates (15) are provided with a second slide bar (14) through their inner cavities, a plurality of the first clamping plates (15) are provided with a first slide bar (13) through their inner cavities, a return spring is fixedly connected between the second clamping plates (16) and the first clamping plates (15), the left and right ends of the first slide bar (13) and the second slide bar (14) are both sleeved with a fixing plate (10), the rear sides of the two fixing plates (10) are fixedly connected with a horizontal plate (9), the top center of the horizontal plate (9) is fixedly connected with a vertical plate (11), the front side of the vertical plate (11) is fixedly connected with a limiting plate (12) near the top, and the inner cavity of the limiting plate (12) is provided with a strip opening,The fourth clamping plate (24), the third clamping plate (23), the second clamping plate (16) and the first clamping plate (15) are all fixedly connected with linkage plates (25) on the top, the linkage plates (25) located on the top of the fourth clamping plate (24) and the third clamping plate (23) all pass through the annular opening, the linkage plates (25) located on the top of the first clamping plate (15) and the second clamping plate (16) all pass through the strip opening, and the tops of several linkage plates (25) are all fixedly connected with translation plates (26), and the T-shaped plate ( The tops of the T-shaped plate (20) and the limiting plate (12) are both fitted with the adjacent translation plate (26); the tops of the T-shaped plate (20) and the limiting plate (12) are both fixedly connected with a plurality of upper plates (28); the plurality of upper plates (28) are linearly arranged from left to right; a groove is provided on the top of the upper plate (28); two grooves are provided on the top of the upper plate (28) near the front side; the two grooves are connected with the groove; the translation plate (26) on the left side is fixedly connected with a fixing plate (26); A plywood (27), a triangular body is provided on the front side of the plywood (27), the inner cavity of the slot is movably connected to a triangular plate (31), the front side of the triangular plate (31) is fixedly connected to a movable rod (32), the front end of the movable rod (32) passes through the inner cavity of the slot, a spring (33) is sleeved on the outer side of the movable rod (32), the front end of the spring (33) is fixedly connected to the triangular plate (31), the rear end of the spring (33) is fixedly connected to the inner wall of the slot, and the upper plate (28) is fixedly connected to the inner cavity of the slot. ) is fixedly connected to a middle plate (34) at the center of the front side, the front side of the middle plate (34) is fixedly connected to a front plate (29), the rear side of the front plate (29) is equipped with two trigger switches (30), a radiator (7) is installed at the bottom of the power distribution cabinet (1), the trigger switch (30) located on the right side is electrically connected to the radiator (7), a heat sink (3) is arranged on the top of the power distribution cabinet (1), and the trigger switch (30) located on the left side is electrically connected to the main switch (4).

2. The method for operating a high and low voltage distribution cabinet with a fault detection function according to claim 1, characterized in that: The operation method includes the following steps: S1: First, when installing the cables (5), the staff can pass a plurality of cables (5) through the fourth clamping plate (24), the third clamping plate (23), the second clamping plate (16) and the first clamping plate (15). The fourth clamping plate (24) and the third clamping plate (23) can clamp the adjacent cables (5) through the fixing spring, and the first clamping plate (15) and the second clamping plate (16) can clamp the adjacent cables (5) through the reset spring. S2: When the cable (5) generates a high temperature phenomenon, the insulating layer on the outer side of the cable (5) may expand, thereby driving the fourth clamping plate (24) and the third clamping plate (23), the first clamping plate (15) and the second clamping plate (16) to move away from each other. When the fourth clamping plate (24) moves to the left, it can drive the adjacent linkage plate (25) to move to the left. When the linkage plate (25) located on the left side moves to the left, it can drive the translation plate (26) to move to the left. When the translation plate (26) moves to the left, it can drive the bonding plate (27) to move to the left. S3: When the bonding plate (27) moves to the left, it may first contact the triangular plate (31) located on the right side. When the triangular plate (31) located on the right side is activated, the radiator (7) may be activated. When the radiator (7) is activated, the inner cavity of the power distribution cabinet (1) and the cable (5) may be cooled. S4: When the laminating plate (27) moves to the left, the triangular plate (31) on the left side can be triggered. At this time, it can be determined that the cable (5) is seriously heated. The triangular plate (31) on the left side can turn off the main switch (4) to prevent the situation from getting worse.

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