Fault detection early warning equipment for circuit breaker operating mechanism

Abstract

The invention belongs to the technical field of circuit breaker equipment, and particularly relates to fault detection and early warning equipment for a circuit breaker operating mechanism, which comprises a first shell, an active circuit breaking mechanism is arranged at the top of the first shell, a temperature control circuit breaking mechanism is arranged in the first shell, and a passive circuit breaking mechanism is arranged on one side of the first shell. An indicator lamp body is arranged at the top of the first shell, a microprocessor is arranged on one side of the temperature control circuit breaking mechanism, and the indicator lamp body comprises a first indicator lamp, a second indicator lamp and a third indicator lamp; according to the device, by arranging the first insulating plate, when an existing sensor cannot work normally, a maintainer can actively control the second insulating plate to enter the position between the conductor body and the rotary knob in a mode of manually pressing the first insulating plate, so that circuit breaking of current is achieved, and the maintainer can conveniently maintain the device after the sensor fails.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breaker equipment, and in particular relates to a fault detection and early warning device for a circuit breaker operating mechanism. Background Art

[0002] Circuit breaker early warning equipment is a device used to monitor the operating status of circuit breakers and send out early warning signals when abnormal conditions occur. Circuit breaker early warning equipment usually uses sensors to monitor various parameters of circuit breakers in real time, such as current, voltage, temperature, insulation resistance, etc. When the monitored parameters exceed the preset normal range, the equipment will immediately send out an early warning signal to remind the staff to check and repair.

[0003] Patent document CN218601421 U discloses an integrated protection and measurement control device with a vacuum circuit breaker early warning function, including: the integrated protection and measurement control device includes: a digital-to-analog conversion module, a memory, and a power module are all electrically connected to a microprocessor, a signal conditioning module, a voltage sensor, and a current sensor are all electrically connected to the digital-to-analog conversion module, a voltage sensor is electrically connected to a voltage transformer in a power distribution cabinet, and a current sensor is electrically connected to a current transformer in a power distribution cabinet; a vacuum circuit breaker monitoring module includes: a first Hall current sensor, a second Hall current sensor, and an angular displacement sensor are all electrically connected to the signal conditioning module, the first Hall current sensor detects the opening coil current, the second Hall current sensor detects the closing coil current, and the angular displacement sensor is fixedly connected to the vacuum circuit breaker main shaft. The beneficial effects of the utility model are: realizing online monitoring of the mechanical characteristics of the vacuum circuit breaker, early warning of possible fault information, and improving the stability of the power system.

[0004] When the above device is in use, it lacks an emergency response mechanism when a current short circuit is detected. Since the above device uses a large number of sensors, when a special situation occurs that causes the sensor to fail to work properly, the above device cannot perform detection and warning normally, which poses a safety hazard. Therefore, a new type of fault detection and warning device for a circuit breaker operating mechanism is needed to improve the above device. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a fault detection and early warning device for a circuit breaker operating mechanism, which has the advantages of combining active detection with passive detection, and solves the problem that the prior device cannot perform normal detection after the sensor fails.

[0006] To achieve the above object, the present invention provides the following technical solution: A fault detection and early warning device for a circuit breaker operating mechanism, comprising a first housing, an active circuit breaking mechanism is arranged on the top of the first housing, a temperature-controlled circuit breaking mechanism is arranged inside the first housing, a passive circuit breaking mechanism is arranged on one side of the first housing, an indicator light body is arranged on the top of the first housing, a microprocessor is arranged on one side of the temperature-controlled circuit breaking mechanism, and the indicator light body comprises a first indicator light, a second indicator light and a third indicator light;

[0007] Furthermore, an active circuit breaking mechanism comprises a first insulating plate, a sub-buckle, a female buckle, a first insulator and a second insulator, wherein the first insulating plate is arranged at the top of the first shell, the bottom of the first insulating plate is fixedly connected with the sub-buckle, the bottom of the sub-buckle is movably clamped with the female buckle, the first insulator and the second insulator are symmetrically arranged on the left and right sides of the first shell with the first insulating plate as the center, the first insulator and the second insulator both comprise a second insulating plate, a conductor body, a first limiting ring, a thermal conductive ring, a second limiting ring, a clamping hole and a knob, the second insulating plate is symmetrically arranged at the bottom of the first insulating plate with the sub-buckle as the center, the bottom of the second insulating plate is movably connected with the conductor body, the conductor body is movably sleeved inside the first limiting ring, one side of the first limiting ring is fixedly sleeved with the thermal conductive ring, one side of the first limiting ring is provided with the second limiting ring, the top of the second limiting ring is provided with a clamping hole, and the internal thread of the second limiting ring is sleeved with a knob.

[0008] Furthermore, the first insulator and the second insulator also include a first limit column, a common spring, a top plate, a limit groove and a first positioning groove, the first limit column is movably sleeved on one side of the first insulating plate, a common spring is provided on one side of the first limit column, the bottom of the first limit column is fixedly connected to the top plate, the top plate is fixedly installed on the top of the first shell, the limit groove is opened on the top of the first shell, and the limit groove passes through the top plate and the first shell, and the first positioning groove is opened on the left and right sides of the first shell.

[0009] Furthermore, the first indicator light, the second indicator light and the third indicator light are all electrically connected to the microprocessor, the first shell is made of ceramic, and the thin wall thickness of the first shell is 0.5 cm.

[0010] Furthermore, the conductor body has a diameter of 0.5 cm, a melting point of 1083°C, contact surfaces between the conductor body and the second insulating plate are chamfered, a side length of 0.2 cm, an angle of 45°, and the second insulating plate is made of a hard rubber plate with a thickness of 0.3 cm.

[0011] Furthermore, the temperature-controlled circuit-breaking mechanism includes a micro-servo motor, a signal processor, a current sensor, a positioning plate, a positioning hole, a second limiting column, an insulating cover, a threaded sleeve and a base. The micro-servo motor is fixedly installed at the bottom of the first shell, one side of the micro-servo motor is electrically connected to the signal processor, the other side of the micro-servo motor is provided with a current sensor, the top of the micro-servo motor is fixedly installed with a positioning plate, the top of the positioning plate is provided with a positioning hole, and the positioning hole passes through the positioning plate, the top of the positioning plate is fixedly connected with a second limiting column, one side of the second limiting column is movably installed with an insulating cover, the top of the insulating cover is fixedly installed with a threaded sleeve, the bottom of the insulating cover is movably sleeved with a base, and the base is movably installed on the top of the positioning plate.

[0012] Furthermore, the temperature-controlled circuit breaker mechanism also includes a first slide groove, a second positioning groove, a second conductor, a third conductor, a fourth conductor, a copper conductor, a tungsten rack, a tungsten gear, a tungsten lead screw and a temperature sensor. The first slide groove is opened inside the base, and a second positioning groove is opened at the bottom of the first slide groove. The second conductor is fixedly installed at the bottom of the base, and the third conductor is fixedly installed on the top of the second conductor. One side of the third conductor is electrically connected to the fourth conductor, one side of the fourth conductor is fixedly connected to the copper conductor, one side of the copper conductor is fixedly connected to a tungsten rack, one side of the tungsten rack is meshed and transmitted with a tungsten gear, and the top of the tungsten gear is fixedly connected to a tungsten lead screw. A temperature sensor is provided on one side of the copper conductor, and the temperature sensor is fixedly installed on the inner wall of the first shell. The second conductor is electrically connected to the current sensor.

[0013] Furthermore, the temperature sensor is wirelessly connected to the micro servo motor, the temperature sensor is arranged on one side of the heat conductive ring, and the detection range of the temperature sensor is 500°C-1100°C, wherein 500°C is the warning temperature of the temperature sensor, and 1100°C is the maximum detection temperature of the temperature sensor, the tungsten gear is fixedly installed at the output end of the micro servo motor, and the copper conductor, tungsten rack, third conductor and second conductor are all made of copper conductor.

[0014] Furthermore, the passive circuit breaking mechanism includes a third insulating plate, a guide rail, a second slide groove, a rotating rod, an arc-shaped worm gear, a worm, a first gear, a first rack, a sliding rod, a shift block and a long spring. The third insulating plate is fixedly mounted on one side of the first shell, a guide rail is fixedly mounted on one side of the third insulating plate, a second slide groove is provided on one side of the guide rail, a rotating rod is movably mounted on one side of the third insulating plate, a worm is fixedly connected to one side of the rotating rod, one side of the worm is meshed with an arc-shaped worm gear, the arc-shaped worm gear is fixedly mounted on one side of the base, the other side of the rotating rod is fixedly sleeved with a first gear, one side of the first gear is meshed with a first rack, one side of the first rack is fixedly connected with a shift block, the interior of the first rack is movably sleeved with a sliding rod, and the top of the first rack is fixedly connected with a long spring.

[0015] Furthermore, the passive circuit breaking mechanism also includes a second shell, an arc-shaped slide groove, a paddle, a rotating shaft, a magnetic sensor, a second spring and a conductive sheet. The second shell is fixedly mounted on one side of the guide rail, an arc-shaped slide groove is provided on one side of the second shell, a magnetic sensor is movably mounted inside the arc-shaped slide groove, one side of the magnetic sensor is fixedly connected to a paddle, the paddle is fixedly connected to one side of the rotating shaft, the rotating shaft is movably mounted on one side of the first shell, the bottom of the paddle is fixedly connected to a second spring, the bottom of the second spring is fixedly connected to a conductive sheet, the conductive sheet is electrically connected to the second conductor through a wire, a plurality of micro magnetic sheets are arranged inside the arc-shaped slide groove, and the magnetic sensor is electrically connected to a microprocessor.

[0016] Furthermore, the paddle is movably connected to the bottom of the first rack, the second spring is made of copper-lead alloy, and the lead content of the second spring is 10%-15%, the conductive sheet is made of tungsten, and the thickness of the conductive sheet is 0.5 cm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is in use, a magnetic sensor is set up to detect the magnetic force generated by the magnetic sensor and the magnetic sheet inside the arc-shaped slide groove. When the magnetic sensor passes through the arc-shaped slide groove, it can detect whether the positions of the magnetic sensor and the paddle inside the second shell are correct according to the magnetic force generated by the magnetic sheet and the magnetic sensor at different positions inside the arc-shaped slide groove, thereby visually detecting the extension and contraction degree of the second spring with the naked eye.

[0019] 2. When the present invention is in use, a temperature sensor is set to detect the temperature of the copper conductor and the thermal conductive ring. When the temperature of the second conductor and the copper conductor exceeds 500°C, the temperature sensor transmits a signal to the signal processor, which controls the micro servo motor to start, drives the copper conductor to separate from the conductor body, and drives the insulating cover to move downward, thereby isolating the copper conductor from the conductor body and blocking the current in time.

[0020] 3. When the present invention is in use, by setting a first insulating plate, when the existing sensor fails to work normally, the maintenance personnel can manually press the first insulating plate to actively control the second insulating plate to enter between the conductor body and the knob, thereby achieving current disconnection, which is convenient for the maintenance personnel to maintain the device after the sensor fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the appearance structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the active circuit breaker mechanism of the present invention;

[0025] Figure 4 It is a schematic diagram of the local structure of the active circuit breaker mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of the main structure of the temperature-controlled circuit breaker mechanism of the present invention;

[0027] Figure 6 It is a schematic diagram of the partial structure of the temperature-controlled circuit breaker mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the exploded structure of the temperature-controlled circuit breaker mechanism of the present invention;

[0029] Figure 8 It is an enlarged structural schematic diagram of the temperature-controlled circuit breaker mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the main structure of the passive circuit breaker mechanism of the present invention;

[0031] Fig.10 It is a partial structural schematic diagram of the passive circuit breaker mechanism of the present invention;

[0032] Fig.11It is a schematic diagram of the exploded structure of the passive circuit breaker mechanism of the present invention;

[0033] Fig.12 It is an enlarged structural schematic diagram of the passive circuit breaker mechanism of the present invention.

[0034] In the figure: 1, first shell; 2, active circuit breaker mechanism; 21, first insulator; 22, second insulator; 201, first insulating plate; 202, first limiting column; 203, second insulating plate; 204, ordinary spring; 205, sub-button; 206, female buckle; 207, top plate; 208, limiting groove; 209, first positioning groove; 210, conductor body; 211, first limiting ring; 212, heat conductive ring; 213, second limiting ring; 214, card hole; 215, knob; 3, temperature control circuit breaker mechanism; 301, micro servo motor; 302, signal processor; 303, current sensor; 304, positioning plate; 305, positioning hole; 306, second limiting column; 307, insulating cover; 308, threaded sleeve; 309, base; 310, first slide groove; 311, second positioning slot; 312, second conductor; 313, third conductor; 314, fourth conductor; 315, copper conductor; 316, tungsten rack; 317, tungsten gear; 318, tungsten lead screw; 319, temperature sensor; 4, passive circuit breaker mechanism; 401, third insulating plate; 402, guide rail; 403, second slide slot; 404, rotating rod; 405, arc worm gear; 406, worm; 407, first gear; 408, first rack; 409, sliding rod; 410, shifting block; 411, long spring; 412, second housing; 413, arc slide slot; 414, shifting piece; 415, rotating shaft; 416, magnetic sensor; 417, second spring; 418, conductive sheet; 5, indicator light body; 51, first indicator light; 52, second indicator light; 53, third indicator light; 6, microprocessor. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Please refer to Figures 1 to 12The present invention provides a technical solution: a fault detection and early warning device for a circuit breaker operating mechanism, comprising a first housing 1, characterized in that: an active circuit breaker mechanism 2 is arranged on the top of the first housing 1, a temperature-controlled circuit breaker mechanism 3 is arranged inside the first housing 1, a passive circuit breaker mechanism 4 is arranged on one side of the first housing 1, an indicator light body 5 is arranged on the top of the first housing 1, a microprocessor 6 is arranged on one side of the temperature-controlled circuit breaker mechanism 3, and the indicator light body 5 includes a first indicator light 51, a second indicator light 52 and a third indicator light 53;

[0036] The first indicator light 51 , the second indicator light 52 and the third indicator light 53 are all electrically connected to the microprocessor 6 . The first housing 1 is made of ceramic, and the wall thickness of the first housing 1 is 0.5 cm.

[0037] like Figure 2 , Figure 3 and Figure 4 As shown, the active circuit breaker mechanism 2 includes a first insulating plate 201, a sub-button 205, a female buckle 206, a first insulator 21 and a second insulator 22. The first insulating plate 201 is arranged on the top of the first housing 1, the bottom of the first insulating plate 201 is fixedly connected with the sub-button 205, and the bottom of the sub-button 205 is movably connected with the female buckle 206. The first insulator 21 and the second insulator 22 are symmetrically arranged on the left and right sides of the first housing 1 with the first insulating plate 201 as the center. The first insulator 21 and the second insulator 22 both include a second insulating plate 203, a conductor body 210, a first limiting ring 211, A thermal conductive ring 212, a second limiting ring 213, a clamping hole 214 and a knob 215, the second insulating plate 203 is symmetrically arranged at the bottom of the first insulating plate 201 with the buckle 205 as the center, the bottom of the second insulating plate 203 is movably connected with a conductor body 210, the conductor body 210 is movably sleeved inside the first limiting ring 211, one side of the first limiting ring 211 is fixedly sleeved with the thermal conductive ring 212, one side of the first limiting ring 211 is provided with a second limiting ring 213, the top of the second limiting ring 213 is provided with a clamping hole 214, and the internal thread of the second limiting ring 213 is sleeved with a knob 215.

[0038] The first insulator 21 and the second insulator 22 also include a first limiting column 202, a common spring 204, a top plate 207, a limiting groove 208 and a first positioning groove 209. The first limiting column 202 is movably sleeved on one side of the first insulating plate 201. A common spring 204 is provided on one side of the first limiting column 202. The bottom of the first limiting column 202 is fixedly connected to the top plate 207. The top plate 207 is fixedly installed on the top of the first shell 1. The limiting groove 208 is opened on the top of the first shell 1, and the limiting groove 208 runs through the top plate 207 and the first shell 1. The first positioning groove 209 is opened on the left and right sides of the first shell 1.

[0039] The conductor body 210 has a diameter of 0.5 cm and a melting point of 1083° C. The contact surfaces between the conductor body 210 and the second insulating plate 203 are chamfered, with a side length of 0.2 cm and an angle of 45°. The second insulating plate 203 is made of a hard rubber plate with a thickness of 0.3 cm.

[0040] It needs to be further explained that; when other sensors of the device fail and cannot detect the circuit breaker normally, the first indicator light 51, the second indicator light 52 and the third indicator light 53 automatically change from green to yellow after losing the signals of the current sensor 303 and the temperature sensor 319. After the maintenance personnel see that the indicator light body turns yellow, they manually press the first insulating plate 201 to drive the second insulating plate 203 to press down until the second insulating plate 203 is inserted between the conductor body 210 and the second limit ring 213. At this time, the circuit between the second insulator 22 and the first insulator 21 is isolated by the second insulating plate 203. The maintenance personnel can manually and quickly cut off the power in this way to avoid the lack of emergency means to protect the equipment after the device loses its autonomous circuit breaking ability.

[0041] like Figures 5 to 8 As shown, the temperature control circuit breaker mechanism 3 includes a micro servo motor 301, a signal processor 302, a current sensor 303, a positioning plate 304, a positioning hole 305, a second limiting column 306, an insulating cover 307, a threaded sleeve 308 and a base 309. The micro servo motor 301 is fixedly installed at the bottom of the first housing 1, one side of the micro servo motor 301 is electrically connected to the signal processor 302, and the other side of the micro servo motor 301 is provided with a current sensor 303. The top of the micro servo motor 301 is fixedly installed with a positioning plate 304, the top of the positioning plate 304 is provided with a positioning hole 305, and the positioning hole 305 passes through the positioning plate 304, the top of the positioning plate 304 is fixedly connected with the second limiting column 306, one side of the second limiting column 306 is movably installed with an insulating cover 307, the top of the insulating cover 307 is fixedly installed with a threaded sleeve 308, the bottom of the insulating cover 307 is movably sleeved with a base 309, and the base 309 is movably installed on the top of the positioning plate 304.

[0042] The temperature-controlled circuit breaker mechanism 3 further includes a first slide groove 310, a second positioning groove 311, a second conductor 312, a third conductor 313, a fourth conductor 314, a copper conductor 315, a tungsten rack 316, a tungsten gear 317, a tungsten lead screw 318 and a temperature sensor 319. The first slide groove 310 is provided inside the base 309, a second positioning groove 311 is provided at the bottom of the first slide groove 310, the second conductor 312 is fixedly installed at the bottom of the base 309, and a third conductor 313 is fixedly installed on the top of the second conductor 312. One side of the third conductor 313 is electrically connected to the fourth conductor 314, one side of the fourth conductor 314 is fixedly connected to the copper conductor 315, one side of the copper conductor 315 is fixedly connected to the tungsten rack 316, one side of the tungsten rack 316 is meshed with a tungsten gear 317, the top of the tungsten gear 317 is fixedly connected to a tungsten lead screw 318, one side of the copper conductor 315 is provided with a temperature sensor 319, the temperature sensor 319 is fixedly installed on the inner wall of the first shell 1, and the second conductor 312 is electrically connected to the current sensor 303.

[0043] The temperature sensor 319 is wirelessly connected to the micro servo motor 301. The temperature sensor 319 is arranged on one side of the heat conductive ring 212, and the detection range of the temperature sensor 319 is 500°C-1100°C, wherein 500°C is the warning temperature of the temperature sensor 319, and 1100°C is the maximum detection temperature of the temperature sensor 319. The tungsten gear 317 is fixedly installed at the output end of the micro servo motor 301, and the copper conductor 315, the tungsten rack 316, the third conductor 313 and the second conductor 312 are all made of copper conductors.

[0044] It needs to be further explained that: when the first indicator light 51, the second indicator light 52 and the third indicator light 53 change from green to red, it means that the temperature of the copper conductor 315 and the heat-conducting ring 212 detected by the temperature sensor 319 exceeds the warning line of 500°C. At this time, the temperature sensor 319 sends a signal to the microprocessor 6 through the signal processor 302 to control the micro servo motor 301 to drive the tungsten gear 317 to rotate. When the tungsten gear 317 rotates, it drives the tungsten rack 316 to move left and right, thereby controlling the copper conductor 315 to separate from the conductor body 210. At the same time, the tungsten gear 317 drives the tungsten lead screw 318 to rotate. When the tungsten lead screw 318 rotates, it drives the insulating cover 307 to move downward, thereby isolating the copper conductor 315 from the conductor body 210. At this time, the current between the first insulator 21 and the second insulator 22 is cut off.

[0045] like Figures 9 to 12As shown, the passive circuit breaker mechanism 4 includes a third insulating plate 401, a guide rail 402, a second slide groove 403, a rotating rod 404, an arc worm gear 405, a worm 406, a first gear 407, a first rack 408, a sliding rod 409, a shift block 410 and a long spring 411. The third insulating plate 401 is fixedly mounted on one side of the first housing 1, the guide rail 402 is fixedly mounted on one side of the third insulating plate 401, the second slide groove 403 is opened on one side of the guide rail 402, and the rotating rod 404 is movably mounted on one side of the third insulating plate 401. 04, one side of the rotating rod 404 is fixedly connected with a worm 406, one side of the worm 406 is meshed with an arc-shaped worm wheel 405, the arc-shaped worm wheel 405 is fixedly installed on one side of the base 309, the other side of the rotating rod 404 is fixedly sleeved with a first gear 407, one side of the first gear 407 is meshed with a first rack 408, one side of the first rack 408 is fixedly connected with a shift block 410, the interior of the first rack 408 is movably sleeved with a slide rod 409, and the top of the first rack 408 is fixedly connected with a long spring 411.

[0046] The passive circuit breaker mechanism 4 also includes a second shell 412, an arc-shaped slot 413, a paddle 414, a rotating shaft 415, a magnetic sensor 416, a second spring 417 and a conductive sheet 418. The second shell 412 is fixedly mounted on one side of the guide rail 402. An arc-shaped slot 413 is provided on one side of the second shell 412. A magnetic sensor 416 is movably mounted inside the arc-shaped slot 413. A paddle 414 is fixedly connected to one side of the magnetic sensor 416. The paddle 414 is fixedly connected to one side of the rotating shaft 415. The rotating shaft 415 is movably mounted on one side of the first shell 1. The bottom of the paddle 414 is fixedly connected to the second spring 417. The bottom of the second spring 417 is fixedly connected to the conductive sheet 418. The conductive sheet 418 is electrically connected to the second conductor 312 through a wire. A plurality of micro magnetic sheets are arranged inside the arc-shaped slot 413. The magnetic sensor 416 is electrically connected to the microprocessor 6.

[0047] The paddle 414 is movably engaged with the bottom of the first rack 408 . The second spring 417 is made of copper-lead alloy, and the lead content of the second spring 417 is 10%-15%. The conductive sheet 418 is made of tungsten, and the thickness of the conductive sheet 418 is 0.5 cm.

[0048] It needs to be further explained that: when the current sensor 303 detects that the current passing through the second conductor 312 is too large, a signal is sent to the microprocessor 6 through the signal processor 302 to control the micro servo motor 301 to start, thereby disconnecting the current between the first insulator 21 and the second insulator 22. When the current sensor 303 fails and the device is short-circuited, the current passes through the second conductor 312, the conductive sheet 418 and the second spring 417. Since 10%-15% lead is added to the inside of the second spring 417, the melting point of the second spring 417 is 800°C. At this time, the elastic force of the second spring 417 gradually weakens with the increase of temperature. The paddle 414 deviates downward under the thrust of the long spring 411 and the first rack 408, thereby driving the worm 406 to engage with the arc worm wheel 405 through the meshing of the first rack 408 and the first gear 407, and finally driving the base 309 to deflect, driving the copper conductor 315 to separate from the conductor body 210, and realizing the disconnection of the current between the first insulator 21 and the second insulator 22.

[0049] The working principle of the above embodiment is: firstly, the wire is inserted into the clamping hole 214 inside the first insulator 21 and the second insulator 22 respectively, and then the knob 215 is rotated to fix the wire between the second limiting ring 213 and the conductor body 210.

[0050] Next, when other sensors of the device fail and cannot detect the circuit breaker normally, the first indicator light 51, the second indicator light 52 and the third indicator light 53 automatically change from green to yellow after losing the signals of the current sensor 303 and the temperature sensor 319. After the maintenance personnel see that the indicator light body turns yellow, they manually press the first insulating plate 201 to drive the second insulating plate 203 to press down until the second insulating plate 203 is inserted between the conductor body 210 and the second limit ring 213. At this time, the circuit between the second insulator 22 and the first insulator 21 is isolated by the second insulating plate 203. The maintenance personnel can manually and quickly cut off the power in this way to avoid the lack of emergency means to protect the equipment after the device loses its autonomous circuit breaking ability. Next, when the first indicator light 51, the second indicator light 52 and the third indicator light 53 change from green to red, it indicates that the temperature of the copper conductor 315 and the heat-conducting ring 212 detected by the temperature sensor 319 exceeds the warning line of 500°C. At this time, the temperature sensor 319 sends a signal to the microprocessor 6 through the signal processor 302 to control the micro servo motor 301 to drive the tungsten gear 317 to rotate. When the tungsten gear 317 rotates, it drives the tungsten rack 316 to move left and right, thereby controlling the copper conductor 315 to separate from the conductor body 210. At the same time, the tungsten gear 317 drives the tungsten lead screw 318 to rotate. When the tungsten lead screw 318 rotates, it drives the insulating cover 307 to move downward, thereby isolating the copper conductor 315 from the conductor body 210. At this time, the current between the first insulator 21 and the second insulator 22 is cut off.

[0051] Finally, when the current sensor 303 detects that the current passing through the second conductor 312 is too large, a signal is sent to the microprocessor 6 through the signal processor 302 to control the micro servo motor 301 to start, thereby disconnecting the current between the first insulator 21 and the second insulator 22. When the current sensor 303 fails and the device is short-circuited, the current passes through the second conductor 312, the conductive sheet 418 and the second spring 417. Since 10%-15% lead is added to the inside of the second spring 417, the melting point of the second spring 417 is 800°C. At this time, the elastic force of the second spring 417 gradually weakens with the increase of temperature. The paddle 414 deviates downward under the thrust of the long spring 411 and the first rack 408, thereby driving the worm 406 to engage with the arc worm wheel 405 through the meshing of the first rack 408 and the first gear 407, and finally driving the base 309 to deflect, driving the copper conductor 315 to separate from the conductor body 210, and realizing the disconnection of the current between the first insulator 21 and the second insulator 22.

[0052] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fault detection and early warning device for a circuit breaker operating mechanism, comprising a first housing (1), characterized in that : An active circuit breaker mechanism (2) is arranged on the top of the first housing (1), a temperature-controlled circuit breaker mechanism (3) is arranged inside the first housing (1), a passive circuit breaker mechanism (4) is arranged on one side of the first housing (1), an indicator light body (5) is arranged on the top of the first housing (1), a microprocessor (6) is arranged on one side of the temperature-controlled circuit breaker mechanism (3), and the indicator light body (5) comprises a first indicator light (51), a second indicator light (52) and a third indicator light (53); An active circuit breaker mechanism (2), the active circuit breaker mechanism (2) comprising a first insulating plate (201), a sub-button (205), a female buckle (206), a first insulator (21) and a second insulator (22), the first insulating plate (201) being arranged on the top of a first housing (1), the bottom of the first insulating plate (201) being fixedly connected with the sub-button (205), the bottom of the sub-button (205) being movably engaged with the female buckle (206), the first insulator (21) and the second insulator (22) being symmetrically arranged on the left and right sides of the first housing (1) with the first insulating plate (201) as the center, the first insulator (21) and the second insulator (22) both comprising a second insulating plate (203), a conductor body (210), a first limiting ring (211), and a second insulator (22). 11), a heat-conducting ring (212), a second limiting ring (213), a clamping hole (214) and a knob (215), the second insulating plate (203) is symmetrically arranged at the bottom of the first insulating plate (201) with the buckle (205) as the center, the bottom of the second insulating plate (203) is movably connected with a conductor body (210), the conductor body (210) is movably sleeved inside the first limiting ring (211), one side of the first limiting ring (211) is fixedly sleeved with a heat-conducting ring (212), one side of the first limiting ring (211) is provided with a second limiting ring (213), the top of the second limiting ring (213) is provided with a clamping hole (214), and the internal thread of the second limiting ring (213) is sleeved with a knob (215).

2. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The first insulator (21) and the second insulator (22) further comprise a first limiting column (202), a common spring (204), a top plate (207), a limiting groove (208) and a first positioning groove (209); the first limiting column (202) is movably sleeved on one side of the first insulating plate (201); a common spring (204) is provided on one side of the first limiting column (202); the bottom of the first limiting column (202) is fixedly connected to the top plate (207); the top plate (207) is fixedly mounted on the top of the first shell (1); the limiting groove (208) is provided on the top of the first shell (1), and the limiting groove (208) passes through the top plate (207) and the first shell (1); and the first positioning groove (209) is provided on the left and right sides of the first shell (1).

3. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The first indicator light (51), the second indicator light (52) and the third indicator light (53) are all electrically connected to the microprocessor (6); the first housing (1) is made of ceramic, and the thin wall thickness of the first housing (1) is 0.5 cm.

4. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The conductor body (210) has a diameter of 0.5 cm, a melting point of 1083° C., a chamfer is performed on the contact surface between the conductor body (210) and the second insulating plate (203), a side length of the chamfer is 0.2 cm, and an angle is 45°, and the second insulating plate (203) is made of a hard rubber plate with a thickness of 0.3 cm.

5. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The temperature control circuit breaker mechanism (3) comprises a micro servo motor (301), a signal processor (302), a current sensor (303), a positioning plate (304), a positioning hole (305), a second limiting column (306), an insulating cover (307), a threaded sleeve (308) and a base (309); the micro servo motor (301) is fixedly mounted on the bottom of the first housing (1); one side of the micro servo motor (301) is electrically connected to the signal processor (302); the other side of the micro servo motor (301) is provided with a current sensor (303); A positioning plate (304) is fixedly installed on the top of (301), a positioning hole (305) is opened on the top of the positioning plate (304), and the positioning hole (305) passes through the positioning plate (304), a second limiting column (306) is fixedly connected to the top of the positioning plate (304), an insulating cover (307) is movably installed on one side of the second limiting column (306), a threaded sleeve (308) is fixedly installed on the top of the insulating cover (307), and a base (309) is movably sleeved on the bottom of the insulating cover (307), and the base (309) is movably installed on the top of the positioning plate (304).

6. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The temperature-controlled circuit breaker mechanism (3) further comprises a first slide groove (310), a second positioning groove (311), a second conductor (312), a third conductor (313), a fourth conductor (314), a copper conductor (315), a tungsten rack (316), a tungsten gear (317), a tungsten screw rod (318) and a temperature sensor (319); the first slide groove (310) is arranged inside the base (309); the bottom of the first slide groove (310) is provided with a second positioning groove (311); the second conductor (312) is fixedly mounted on the bottom of the base (309); the top of the second conductor (312) is fixedly mounted with a third conductor (313); One side of the third conductor (313) is electrically connected to a fourth conductor (314), one side of the fourth conductor (314) is fixedly connected to a copper conductor (315), one side of the copper conductor (315) is fixedly connected to a tungsten rack (316), one side of the tungsten rack (316) is meshed with a tungsten gear (317), the top of the tungsten gear (317) is fixedly connected to a tungsten lead screw (318), one side of the copper conductor (315) is provided with a temperature sensor (319), the temperature sensor (319) is fixedly mounted on the inner wall of the first housing (1), and the second conductor (312) is electrically connected to a current sensor (303).

7. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 6, characterized in that The temperature sensor (319) is wirelessly connected to the micro servo motor (301), the temperature sensor (319) is arranged on one side of the heat conductive ring (212), and the detection range of the temperature sensor (319) is 500°C-1100°C, wherein 500°C is the warning temperature of the temperature sensor (319), and 1100°C is the maximum detection temperature of the temperature sensor (319), the tungsten gear (317) is fixedly mounted on the output end of the micro servo motor (301), and the copper conductor (315), the tungsten rack (316), the third conductor (313) and the second conductor (312) are all made of copper conductors.

8. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The passive circuit breaker mechanism (4) comprises a third insulating plate (401), a guide rail (402), a second slide groove (403), a rotating rod (404), an arc worm wheel (405), a worm (406), a first gear (407), a first rack (408), a sliding rod (409), a shifting block (410) and a long spring (411); the third insulating plate (401) is fixedly mounted on one side of the first housing (1); a guide rail (402) is fixedly mounted on one side of the third insulating plate (401); a second slide groove (403) is provided on one side of the guide rail (402); a rotating rod (404) is movably mounted on one side of the third insulating plate (401); 4), one side of the rotating rod (404) is fixedly connected to a worm (406), one side of the worm (406) is meshed with an arc-shaped worm wheel (405), the arc-shaped worm wheel (405) is fixedly installed on one side of the base (309), the other side of the rotating rod (404) is fixedly sleeved with a first gear (407), one side of the first gear (407) is meshed with a first rack (408), one side of the first rack (408) is fixedly connected to a shift block (410), the interior of the first rack (408) is movably sleeved with a slide rod (409), and the top of the first rack (408) is fixedly connected to a long spring (411).

9. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 1, characterized in that The passive circuit breaker mechanism (4) further comprises a second housing (412), an arc-shaped slide groove (413), a paddle (414), a rotating shaft (415), a magnetic sensor (416), a second spring (417) and a conductive sheet (418); the second housing (412) is fixedly mounted on one side of the guide rail (402); an arc-shaped slide groove (413) is provided on one side of the second housing (412); a magnetic sensor (416) is movably mounted inside the arc-shaped slide groove (413); and a paddle (414) is fixedly connected to one side of the magnetic sensor (416). 414), the paddle (414) is fixedly connected to one side of a rotating shaft (415), the rotating shaft (415) is movably mounted on one side of the first housing (1), the bottom of the paddle (414) is fixedly connected to a second spring (417), the bottom of the second spring (417) is fixedly connected to a conductive sheet (418), the conductive sheet (418) is electrically connected to a second conductor (312) via a wire, a plurality of micro magnetic sheets are arranged inside the arc-shaped slide groove (413), and the magnetic sensor (416) is electrically connected to a microprocessor (6).

10. A fault detection and early warning device for a circuit breaker operating mechanism according to claim 9, characterized in that The paddle (414) is movably engaged with the bottom of the first rack (408); the second spring (417) is made of a copper-lead alloy, and the lead content of the second spring (417) is 10%-15%; the conductive sheet (418) is made of tungsten, and the thickness of the conductive sheet (418) is 0.5 cm.

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