阅读说明：本技术 一种矿山供配电系统远程监控方法 (Remote monitoring method for mine power supply and distribution system ) 是由 孙云飞 张卫滨 张忠华 于 2020-12-04 设计创作，主要内容包括：本发明涉及电力供配电监控技术领域,具体的说是一种矿山供配电系统远程监控方法；该方法所使用的断路器包括竖直布置的安装板,所述安装板前侧从上到下依次设置有真空灭弧装置及操作保持装置；所述真空灭弧装置包括灭弧室,所述灭弧室通过其外侧的第一固定架固定于安装板上,所述灭弧室上部固定设置有静触点,所述静触点上端连接有延伸至灭弧室上端外的静导电杆；所述灭弧室上部下部设置有与静触点正对的动触点；通过涡流盘、第一线圈及第二线圈的设置,通过电磁斥力的形式实现了动触点与静触点的快速分离,相较弹簧式的分离方式,实现了断路器的快速分闸,进而可以迅速切除故障,防止安全事故的发生,满足矿石电路供配电监控的使用需求。(The invention relates to the technical field of power supply and distribution monitoring, in particular to a remote monitoring method for a mine power supply and distribution system; the circuit breaker used in the method comprises a vertically arranged mounting plate, wherein a vacuum arc extinguishing device and an operation maintaining device are sequentially arranged on the front side of the mounting plate from top to bottom; the vacuum arc extinguishing device comprises an arc extinguishing chamber, the arc extinguishing chamber is fixed on a mounting plate through a first fixing frame on the outer side of the arc extinguishing chamber, a stationary contact is fixedly arranged on the upper portion of the arc extinguishing chamber, and the upper end of the stationary contact is connected with a stationary conducting rod extending out of the upper end of the arc extinguishing chamber; the lower part of the upper part of the arc extinguish chamber is provided with a movable contact which is opposite to the fixed contact; through the setting of vortex dish, first coil and second coil, realized the quick separation of movable contact and stationary contact through the form of electromagnetic repulsion, compare the separation mode of spring, realized the quick separating brake of circuit breaker, and then can amputate the trouble rapidly, prevent the emergence of incident, satisfy the user demand that ore circuit supplied power distribution control.)

1. A mine power supply and distribution system remote monitoring method is characterized by comprising the following steps:

s1, reporting detection data to the control module in real time through the power equipment fault detection module, judging whether a fault early warning condition is met or not by the control module, and if so, carrying out the next step; if not, repeating the step;

s2, the control module sends out early warning information, starts a linkage response measure, realizes the opening of the breaker through the action of the operation module, quickly removes faults and prevents safety accidents;

s3, the control module judges whether the fault early warning removal condition is reached, if the fault early warning removal condition is reached, the next step is carried out, and if the fault early warning removal condition is not reached, the step is repeated;

s4, the control module sends out early warning removing information, and the operation module acts to realize the closing of the breaker, so that the power equipment works smoothly;

the circuit breaker comprises a vertically arranged mounting plate (1), wherein a vacuum arc extinguishing device and an operation maintaining device are sequentially arranged on the front side of the mounting plate (1) from top to bottom;

the vacuum arc extinguishing device comprises an arc extinguishing chamber (2), wherein the arc extinguishing chamber (2) is fixed on a mounting plate (1) through a first fixing frame (21) on the outer side of the arc extinguishing chamber, a static contact (26) is fixedly arranged on the upper portion of the arc extinguishing chamber (2), and the upper end of the static contact (26) is connected with a static conducting rod (22) extending out of the upper end of the arc extinguishing chamber (2); the lower part of the upper part of the arc extinguish chamber (2) is provided with a movable contact (27) which is right opposite to the fixed contact (26), the lower end of the movable contact (27) is connected with a movable conducting rod (23) which extends out of the lower end of the arc extinguish chamber (2), and the movable contact (27) can move upwards under the action of the movable conducting rod (23) to be contacted with the fixed contact (26);

the operation holding device comprises an operation barrel (3), and the operation barrel (3) is fixed on the mounting plate (1) through a second fixing frame (31) on the outer side of the operation barrel; a first coil (61) and a second coil (62) which are horizontally arranged are fixedly arranged in the operation barrel (3), the first coil (61) is positioned below the second coil (62) and has a distance with the second coil (62); a vortex disc (6) capable of moving up and down is arranged between the first coil (61) and the second coil (62), and a long connecting rod (32) which is vertically arranged is fixedly arranged on the vortex disc (6); the upper end of the long connecting rod (32) penetrates through the second coil (62) and the operating cylinder (3) and extends to the outside of the operating cylinder (3) to be connected with the push plate (35), and the push plate (35) is horizontally arranged and located below the movable conducting rod (23); the push plate is characterized in that a sleeve (25) is fixedly arranged at the upper horizontal end of the push plate (35), a sliding block (28) in sliding fit with an inner cavity of the sleeve (25) is arranged in the sleeve (25), the movable conducting rod (23) extends into the sleeve (25) to be fixedly connected with the upper end of the sliding block (28), an opening matched with the movable conducting rod (23) is formed in the upper end of the sleeve (25), and the radius of the sliding block (28) is larger than that of the opening in the upper end of the sleeve (25).

2. The mine power supply and distribution system remote monitoring method according to claim 1, characterized in that a damping block (29) is arranged between the lower end of the sliding block (28) and the bottom of the inner cavity of the sleeve (25).

3. The mine power supply and distribution system remote monitoring method according to claim 2, characterized in that a first annular plate (63) is arranged on the periphery of each of the first coil (61) and the second coil (62), and the outer side of the first annular plate (63) is fixedly connected with the inner wall of the operation barrel (3); a second annular plate (64) is arranged on the periphery of the vortex disc (6), and a gap is reserved between the outer side of the second annular plate (64) and the inner wall of the operation barrel (3); a plurality of second guide rods (53) are uniformly distributed on the upper side and the lower side of the second annular plate (64), the second guide rods (53) respectively penetrate through the first annular plates (63) on the upper side and the lower side to be connected with the retaining block (51), the retaining block (51) is higher than the second annular plate (64) or lower than the first annular plate (63), permanent magnets (5) are arranged at the top and the bottom of the inner cavity of the operation cylinder (3), and the retaining block (51) is made of ferromagnetic materials; the holding block (51) and the permanent magnet (5) have at least the following two stations: a first station: when the switch is switched on, the upper holding block (51) and the upper permanent magnet (5) are mutually attracted together; and a second station: when the brake is opened, the holding block (51) at the lower side and the permanent magnet (5) at the lower side attract each other.

4. The mine power supply and distribution system remote monitoring method according to claim 3, characterized in that a fixing plate (24) extending forwards and horizontally is fixedly arranged on the mounting plate (1) between the arc extinguish chamber (2) and the operating cylinder (3), and a guide hole for the movable conducting rod (23) and the long connecting rod (32) to pass through is arranged on the fixing plate (24); the upper end of the long connecting rod (32) penetrates through the guide hole and extends to the upper part of the fixing plate (24) to be connected with the stop block (34), and a first spring (33) is sleeved outside the long connecting rod (32) between the push plate (35) and the fixing plate (24).

5. The mine power supply and distribution system remote monitoring method according to claim 4, wherein a third spring (65) is arranged between the first annular plate (63) and the second annular plate (64), the third spring (65) is sleeved outside the second guide rod (53), and a layer of buffer sleeve (52) is wrapped outside the retaining block (51).

6. The mine power supply and distribution system remote monitoring method according to claim 5, characterized in that an auxiliary buffer cylinder (4) is fixedly arranged on the mounting plate (1) below the arc extinguish chamber (2) through a third fixing frame (41), a pressure plate (44) is arranged in the auxiliary buffer cylinder (4), a first guide rod (42) which is vertically arranged is fixedly arranged at the lower end of the pressure plate (44), and the first guide rod (42) passes through the lower end of the auxiliary buffer cylinder (4) and extends out of the auxiliary buffer cylinder (4); a second spring (45) is arranged between the pressure plate (44) and the bottom of the inner cavity of the auxiliary buffer cylinder (4), and the second spring (45) is sleeved outside the first guide rod (42); the upper end of the auxiliary buffer cylinder (4) is provided with an insertion hole (43), and the lower end of the long connecting rod (32) penetrates through the lower end of the operation cylinder (3) to extend to the upper part of the auxiliary buffer cylinder (4) and is arranged opposite to the insertion hole (43).

Technical Field

The invention relates to the technical field of power supply and distribution monitoring, in particular to a remote monitoring method for a mine power supply and distribution system.

Background

In production and life, the power supply and distribution system supplies three-phase power to various electric facilities, each loop is controlled by the distribution box, for example, the lighting time of the lighting loop is adjusted according to the season and time change, and the lamp is turned off when not needed, so that the energy conservation is facilitated. The traditional power supply and distribution system is simple in equipment and control, low in automation degree, and required to be provided with a specially-assigned person for duty and patrol, and when a fault occurs, the fault needs to be searched along a line, so that the traditional power supply and distribution system cannot meet the requirement of high-speed development of modern social economy.

The circuit breaker is an essential basic industrial product and a key element in remote monitoring of a power system, has the tasks of closing and closing load current and opening and closing short-circuit fault current, can respond to the detection of arc faults and ground faults, and protects electric equipment on a power grid and a loop from being damaged, so the reliability and the rapidity of the circuit breaker are very important.

Most of the existing circuit breakers are spring operating mechanisms, a compression spring is generally connected with a crank arm on an action shaft by adopting a connecting rod, two ends of the connecting rod are provided with rotatable shaft pins to meet the swinging motion of the connecting rod, for example, a mechanical operating mechanism of the circuit breaker disclosed in the Chinese patent application No. 2013100631061 comprises a transmission part module M1 and a spring part module M2, wherein a closing spring and a separating spring are arranged in the spring part module M2, wherein the closing spring and the separating spring are cylindrical spiral springs, a common-cylinder arrangement mode is adopted between the closing spring and the separating spring, and the closing spring with a larger diameter is sleeved outside the separating spring with a smaller diameter. For circuit breaker products used in mines, generally, the circuit breaker is required to act as fast as possible, so that faults can be removed rapidly and safety accidents are prevented, but the spring operating mechanism acts slowly, so that the using requirements of mine circuit power supply and distribution monitoring are difficult to meet; in addition, the existing closing speed cannot be too high, and the problem that the contacts are seriously ablated due to long-time arcing can be caused seriously because the too high closing speed easily causes the impact of moving and static contacts to cause thick deformation, and then closing bounce is larger to cause closing failure.

The invention designs a remote monitoring method for a mine power supply and distribution system, which realizes the quick separation of a movable contact and a fixed contact in the form of electromagnetic repulsion through the arrangement of the vortex disc, the first coil and the second coil, and compared with a spring separation mode, realizes the quick opening of a circuit breaker, so that the fault can be quickly removed, the occurrence of safety accidents is prevented, and the use requirement of the mine circuit power supply and distribution monitoring is met.

Disclosure of Invention

The invention provides a mine power supply and distribution system remote monitoring method, which aims to make up for the defects of the prior art and solve the problem that the prior spring operating mechanism is slow in action and cannot rapidly remove faults, so that the prior spring operating mechanism is difficult to meet the use requirement of mine circuit power supply and distribution monitoring.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mine power supply and distribution system remote monitoring method comprises the following steps:

s1, reporting detection data to the control module in real time through the power equipment fault detection module, judging whether a fault early warning condition is met or not by the control module, and if so, carrying out the next step; if not, repeating the step;

s2, the control module sends out early warning information, starts a linkage response measure, realizes the opening of the breaker through the action of the operation module, quickly removes faults and prevents safety accidents;

s3, the control module judges whether the fault early warning removal condition is reached, if the fault early warning removal condition is reached, the next step is carried out, and if the fault early warning removal condition is not reached, the step is repeated;

s4, the control module sends out early warning removing information, and the operation module acts to realize the closing of the breaker, so that the power equipment works smoothly;

the circuit breaker comprises a vertically arranged mounting plate, and a vacuum arc extinguishing device and an operation holding device are sequentially arranged on the front side of the mounting plate from top to bottom;

the vacuum arc extinguishing device comprises an arc extinguishing chamber, the arc extinguishing chamber is fixed on a mounting plate through a first fixing frame on the outer side of the arc extinguishing chamber, a stationary contact is fixedly arranged on the upper portion of the arc extinguishing chamber, and the upper end of the stationary contact is connected with a stationary conducting rod extending out of the upper end of the arc extinguishing chamber; the lower part of the upper part of the arc extinguish chamber is provided with a movable contact which is opposite to the static contact, the lower end of the movable contact is connected with a movable conducting rod which extends out of the lower end of the arc extinguish chamber, and the movable contact can move upwards under the action of the movable conducting rod to be in contact with the static contact;

the operation holding device comprises an operation barrel, and the operation barrel is fixed on the mounting plate through a second fixing frame on the outer side of the operation barrel; a first coil and a second coil which are horizontally arranged are fixedly arranged in the operation barrel, and the first coil is positioned below the second coil and has a distance with the second coil; an eddy current disc capable of moving up and down is arranged between the first coil and the second coil, and a long connecting rod which is vertically arranged is fixedly arranged on the eddy current disc; the upper end of the long connecting rod passes through the second coil and the operating cylinder and extends out of the operating cylinder to be connected with the push plate, and the push plate is horizontally arranged and is positioned below the movable conducting rod; the push plate is characterized in that a sleeve is fixedly arranged at the horizontal upper end of the push plate, a sliding block in sliding fit with an inner cavity of the sleeve is arranged in the sleeve, the movable conducting rod extends into the sleeve and is fixedly connected with the upper end of the sliding block, an opening matched with the movable conducting rod is formed in the upper end of the sleeve, and the radius of the sliding block is larger than that of the opening in the upper end of the sleeve.

When the fault early warning device is used, when the fault early warning information is detected by the fault detection module, the control module sends out the early warning information and enables the second coil to be electrified, so that a vortex opposite to the current direction of the second coil is induced in the vortex disc, a repulsive force is generated to push the vortex disc to move downwards, and at the moment, the distance between the vortex disc and the second coil is smaller, so that the generated larger repulsive force enables the vortex disc to move downwards at a higher speed, a long connecting rod fixedly connected with the vortex disc can be driven to move downwards quickly, then the sleeve is driven to move downwards quickly through the baffle plate, and the movable contact is driven to move downwards quickly through the sliding block and the movable conducting rod, so that the movable contact and the fixed contact are separated quickly, the quick opening of the circuit breaker is realized, the fault can be cut off quickly, the safety accident is prevented, and the use requirement of the mine circuit for power distribution; on the contrary, the first coil is electrified, so that the rapid switching-on of the circuit breaker can be realized, the time of the switching-on and switching-off processes is reduced, the existence time of electric arcs between the movable contact and the fixed contact can be reduced, and the probability of serious ablation of the contact due to long-time arc burning is further reduced.

Preferably, a damping block is arranged between the lower end of the sliding block and the bottom of the inner cavity of the sleeve. Through the arrangement of the damping block, the impact energy of the push plate can be consumed through the deformation of the damping block after the movable contact is contacted with the fixed contact, the aim of damping and buffering is achieved, and the switching-on failure caused by the fact that the movable contact bounces to a large extent due to overlarge impact force is avoided; meanwhile, the impact force of the moving contact to the static contact is reduced, the static contact is prevented from being deformed due to upsetting, and the success rate of closing is further improved.

Preferably, the peripheries of the first coil and the second coil are respectively provided with a first annular plate, and the outer side of the first annular plate is fixedly connected with the inner wall of the operation barrel; a second annular plate is arranged on the periphery of the vortex disc, and a space exists between the outer side of the second annular plate and the inner wall of the operation cylinder; a plurality of second guide rods are uniformly distributed on the upper side and the lower side of the second annular plate, the second guide rods respectively penetrate through the first annular plates on the upper side and the lower side to be connected with a retaining block, the retaining block is higher than the second annular plates or lower than the first annular plates, permanent magnets are arranged at the top and the bottom of the inner cavity of the operation cylinder, and the retaining block is made of ferromagnetic materials; the holding block and the permanent magnet at least have the following two stations: a first station: when the switch is switched on, the holding block on the upper side and the permanent magnet on the upper side attract each other together; and a second station: when the brake is opened, the holding block at the lower side and the permanent magnet at the lower side attract each other. Through the arrangement of the holding block and the permanent magnet, the stress of the holding block can be increased through the attraction of the holding block and the permanent magnet in the switching-off or switching-on process, and further the stress of the long connecting rod is increased through the second guide rod and the vortex disc, so that the switching-off or switching-on speed is further increased; meanwhile, the holding block and the permanent magnet can keep attraction continuously after switching-off or switching-on is finished, so that the position of the movable contact is fixed through the long connecting rod and the movable conducting rod, and the working stability of the circuit breaker is improved.

Preferably, a fixing plate extending forwards and horizontally is fixedly arranged on the mounting plate between the arc extinguish chamber and the operation cylinder, and a guide hole for the movable conducting rod and the long connecting rod to pass through is formed in the fixing plate; the upper end of the long connecting rod penetrates through the guide hole and extends to the upper part of the fixed plate to be connected with the stop block, and a first spring is sleeved outside the long connecting rod between the push plate and the fixed plate. Through the arrangement of the first spring, impact force can be reduced during switching-on, switching-on failure caused by large bouncing of the movable contact is avoided, part of impact energy during switching-on can be converted into elastic potential energy of the first spring to be stored, a downward force can be provided for the long connecting rod during switching-off, energy is saved, and meanwhile, the speed of switching-off is further improved.

Preferably, a third spring is arranged between the first annular plate and the second annular plate, the third spring is sleeved outside the second guide rod, and a layer of buffer sleeve is wrapped outside the retaining block. Because at the end of the closing or opening process, the distance between the permanent magnet and the holding block is too small, so that the attraction force is increased sharply, the impact force between the permanent magnet and the holding block can be reduced through elastic deformation by arranging the third spring and the buffer sleeve, the permanent magnet and the holding block are prevented from being damaged, and the service life is prolonged.

Preferably, an auxiliary buffer cylinder is fixedly arranged on the mounting plate below the arc extinguish chamber through a third fixing frame, a pressure plate is arranged in the auxiliary buffer cylinder, a first guide rod which is vertically arranged is fixedly arranged at the lower end of the pressure plate, and the first guide rod penetrates through the lower end of the auxiliary buffer cylinder and extends out of the auxiliary buffer cylinder; a second spring is arranged between the pressure plate and the bottom of the inner cavity of the auxiliary buffer cylinder, and the second spring is sleeved outside the first guide rod; the upper end of the auxiliary buffer cylinder is provided with an insertion hole, and the lower end of the long connecting rod penetrates through the lower end of the operation cylinder, extends to the upper part of the auxiliary buffer cylinder and is arranged opposite to the insertion hole. Through supplementary buffer cylinder, can make second spring compression deformation through long connecting rod extrusion clamp plate when the separating brake, the shock-absorbing capacity when further improving the separating brake, the second spring also can provide an ascending power to long connecting rod when closing a floodgate simultaneously, further improves the speed of closing a floodgate when the energy is saved.

The invention has the following beneficial effects:

1. according to the mine power supply and distribution system remote monitoring method, the rapid separation of the movable contact and the fixed contact is realized in the form of electromagnetic repulsion through the arrangement of the vortex disc, the first coil and the second coil, and compared with a spring separation mode, the rapid opening of the circuit breaker is realized, so that faults can be rapidly removed, safety accidents are prevented, and the use requirements of mine circuit power supply and distribution monitoring are met.

2. According to the remote monitoring method for the mine power supply and distribution system, due to the arrangement of the first spring, impact force can be reduced during closing, failure in closing caused by large bouncing of the movable contact is avoided, part of impact energy during closing can be converted into elastic potential energy of the first spring to be stored, a downward force can be provided for the long connecting rod during opening, energy is saved, and the opening speed is further increased.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of a method of the present invention;

fig. 2 is a perspective view of a circuit breaker used in the present invention;

fig. 3 is a cross-sectional view of a circuit breaker used in the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a sectional view of the operation holding box in the present invention;

in the figure:

1. mounting a plate; 2. an arc extinguishing chamber; 21. a first fixing frame; 22. a static conductive rod; 23. a movable conductive rod; 24. a fixing plate; 25. a sleeve; 26. a stationary contact; 27. a movable contact; 28. a slider; 29. a damper block; 3. an operation cylinder; 31. a second fixing frame; 32. a long connecting rod; 33. a first spring; 34. a stopper; 35. pushing the plate; 4. an auxiliary buffer cylinder; 41. a third fixing frame; 42. a first guide bar; 43. an insertion opening; 44. pressing a plate; 45. a second spring; 5. a permanent magnet; 51. a holding block; 52. a buffer sleeve; 53. a second guide bar; 6. a vortex disk; 61. a first coil; 62. a second coil; 63. a first annular plate; 64. a second annular plate; 65. and a third spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, a method for remotely monitoring a mine power supply and distribution system includes the following steps:

s1, reporting detection data to the control module in real time through the power equipment fault detection module, judging whether a fault early warning condition is met or not by the control module, and if so, carrying out the next step; if not, repeating the step;

s2, the control module sends out early warning information, starts a linkage response measure, realizes the opening of the breaker through the action of the operation module, quickly removes faults and prevents safety accidents;

s3, the control module judges whether the fault early warning removal condition is reached, if the fault early warning removal condition is reached, the next step is carried out, and if the fault early warning removal condition is not reached, the step is repeated;

s4, the control module sends out early warning removing information, and the operation module acts to realize the closing of the breaker, so that the power equipment works smoothly;

the circuit breaker comprises a vertically arranged mounting plate 1, wherein a vacuum arc extinguishing device and an operation maintaining device are sequentially arranged on the front side of the mounting plate 1 from top to bottom;

the vacuum arc extinguishing device comprises an arc extinguishing chamber 2, the arc extinguishing chamber 2 is fixed on a mounting plate 1 through a first fixing frame 21 on the outer side of the arc extinguishing chamber, a static contact 26 is fixedly arranged on the upper portion of the arc extinguishing chamber 2, and the upper end of the static contact 26 is connected with a static conducting rod 22 extending out of the upper end of the arc extinguishing chamber 2; a movable contact 27 opposite to the fixed contact 26 is arranged at the lower part of the upper part of the arc extinguish chamber 2, the lower end of the movable contact 27 is connected with a movable conducting rod 23 extending out of the lower end of the arc extinguish chamber 2, and the movable contact 27 can move upwards under the action of the movable conducting rod 23 to be contacted with the fixed contact 26;

the operation holding device comprises an operation barrel 3, and the operation barrel 3 is fixed on the mounting plate 1 through a second fixing frame 31 on the outer side of the operation barrel; a first coil 61 and a second coil 62 which are horizontally arranged are fixedly arranged in the operation barrel 3, wherein the first coil 61 is positioned below the second coil 62, and a space is reserved between the first coil 61 and the second coil 62; an eddy disk 6 capable of moving up and down is arranged between the first coil 61 and the second coil 62, and a long connecting rod 32 which is vertically arranged is fixedly arranged on the eddy disk 6; the upper end of the long connecting rod 32 passes through the second coil 62 and the operation cylinder 3 and extends to the outside of the operation cylinder 3 to be connected with the push plate 35, and the push plate 35 is horizontally arranged and positioned below the movable conducting rod 23; the horizontal upper end of the push plate 35 is fixedly provided with a sleeve 25, a sliding block 28 in sliding fit with an inner cavity of the sleeve 25 is arranged in the sleeve 25, the movable conducting rod 23 extends into the sleeve 25 and is fixedly connected with the upper end of the sliding block 28, the upper end of the sleeve 25 is provided with an opening matched with the movable conducting rod 23, and the radius of the sliding block 28 is larger than that of the opening at the upper end of the sleeve 25.

When in use, when the fault detection module detects the fault early warning information, the control module sends out the early warning information and enables the second coil 62 to be electrified, thereby inducing eddy currents in the eddy current disk 6 in a direction opposite to the current direction of the second coil 62, thereby generating repulsive force, pushing the eddy current disk 6 to move downward, since the distance between the vortex disk 6 and the second coil 62 is smaller, the larger repulsive force is generated to make the downward movement speed of the vortex disk 6 larger, further driving the long connecting rod 32 fixedly connected with the long connecting rod to rapidly move downwards, then driving the sleeve 25 to rapidly move downwards through the baffle, then driving the movable contact 27 to rapidly move downwards through the slide block 28 and the movable conducting rod 23, realizing rapid separation of the movable contact 27 and the fixed contact 26, realizing rapid opening of the circuit breaker, furthermore, faults can be removed rapidly, safety accidents are prevented, and the use requirements of mine circuit power supply and distribution monitoring are met; on the contrary, the first coil 61 is electrified, so that the rapid switch-on of the circuit breaker can be realized, the time of the switch-on and switch-off process is reduced, the existing time of electric arc between the movable contact 27 and the fixed contact 26 can be reduced, and the probability of serious ablation of the contact due to long-time arc burning is further reduced; it should be noted that, because the fault detection module, the operation module and the circuit breaker are generally arranged in the underground power distribution room, and the control module is arranged in the master control room on the earth surface, the method of the invention can realize the remote control of the circuit breaker, namely, the on-off state of the circuit breaker of the underground power distribution room can be monitored in the master control room on the earth surface, and the circuit breaker can be operated; in addition, in actual use, the circuit breaker can be controlled by arranging the touch screen in the underground distribution room, so that the operation of field personnel is facilitated, and the technology is the prior art and is not repeated.

In one embodiment of the present invention, a damper block 29 is disposed between the lower end of the slider 28 and the bottom of the inner cavity of the sleeve 25. Through the arrangement of the damping block 29, the impact energy of the push plate 35 can be consumed through the self deformation after the movable contact 27 is contacted with the fixed contact 26, the purpose of damping and buffering is achieved, and the switching-on failure caused by the fact that the movable contact 27 bounces to a large extent due to overlarge impact force is avoided; meanwhile, the impact force of the moving contact to the static contact is reduced, the static contact is prevented from being deformed due to upsetting, and the success rate of closing is further improved.

As an embodiment of the present invention, the first coil 61 and the second coil 62 are provided with a first annular plate 63 on the outer periphery, and the outer side of the first annular plate 63 is fixedly connected with the inner wall of the operation barrel 3; a second annular plate 64 is arranged on the periphery of the vortex disc 6, and a gap is reserved between the outer side of the second annular plate 64 and the inner wall of the operation barrel 3; a plurality of second guide rods 53 are uniformly distributed on the upper side and the lower side of the second annular plate 64, the second guide rods 53 respectively penetrate through the first annular plates 63 on the upper side and the lower side to be connected with the holding block 51, the holding block 51 is higher than the second annular plate 64 or lower than the first annular plates 63, permanent magnets 5 are arranged at the top and the bottom of the inner cavity of the operation cylinder 3, and the holding block 51 is made of ferromagnetic materials; the holding block 51 and the permanent magnet 5 have at least the following two stations: a first station: when closing the switch, the upper holding block 51 and the upper permanent magnet 5 attract each other; and a second station: when the brake is opened, the holding block 51 on the lower side and the permanent magnet 5 on the lower side attract each other. Through the arrangement of the holding block 51 and the permanent magnet 5, the stress of the holding block 51 can be increased through the attraction of the holding block 51 and the permanent magnet 5 in the process of opening or closing, and further the stress of the long connecting rod 32 is increased through the second guide rod 53 and the vortex disc 6, so that the opening or closing speed is further increased; meanwhile, the holding block 51 and the permanent magnet 5 can keep attracting after the switching-off or switching-on is finished, so that the position of the movable contact 27 is fixed through the long connecting rod 32 and the movable conducting rod 23, and the working stability of the circuit breaker is improved.

As an embodiment of the present invention, a fixing plate 24 extending horizontally forward is fixedly disposed on the mounting plate 1 between the arc extinguish chamber 2 and the operation cylinder 3, and the fixing plate 24 is provided with a guide hole for the movable conducting rod 23 and the long connecting rod 32 to pass through; the upper end of the long connecting rod 32 passes through the guide hole and extends to the upper part of the fixing plate 24 to be connected with the stop block 34, and a first spring 33 is sleeved outside the long connecting rod 32 between the push plate 35 and the fixing plate 24. Through the arrangement of the first spring 33, impact force can be reduced during closing, closing failure caused by large bouncing of the movable contact 27 is avoided, part of impact energy during closing can be converted into elastic potential energy of the first spring 33 to be stored, a downward force can be provided for the long connecting rod 32 during opening, energy is saved, and the opening speed is further increased.

In one embodiment of the present invention, a third spring 65 is disposed between the first annular plate 63 and the second annular plate 64, the third spring 65 is sleeved outside the second guide rod 53, and the retaining block 51 is wrapped with a layer of cushion sleeve 52. Since the distance between the permanent magnet 5 and the holding block 51 is excessively small at the end of the closing or opening process, so that the attraction force is increased rapidly, the impact force between the permanent magnet 5 and the holding block 51 can be reduced by elastic deformation through the arrangement of the third spring 65 and the buffer sleeve 52, the permanent magnet 5 and the holding block 51 are prevented from being damaged, and the service life is prolonged.

As an embodiment of the present invention, an auxiliary buffer cylinder 4 is fixedly disposed on the mounting plate 1 below the arc extinguish chamber 2 through a third fixing frame 41, a pressing plate 44 is disposed in the auxiliary buffer cylinder 4, a first guide rod 42 vertically disposed is fixedly disposed at a lower end of the pressing plate 44, and the first guide rod 42 passes through the lower end of the auxiliary buffer cylinder 4 and extends out of the auxiliary buffer cylinder 4; a second spring 45 is arranged between the pressure plate 44 and the bottom of the inner cavity of the auxiliary buffer cylinder 4, and the second spring 45 is sleeved outside the first guide rod 42; the upper end of the auxiliary buffer cylinder 4 is provided with an insertion opening 43, and the lower end of the long connecting rod 32 passes through the lower end of the operation cylinder 3 and extends to the upper part of the auxiliary buffer cylinder 4 and is arranged opposite to the insertion opening 43. Through the auxiliary buffer cylinder 4, the pressing plate 44 can be extruded through the long connecting rod 32 during opening, so that the second spring 45 is compressed and deformed, the buffer performance during opening is further improved, meanwhile, the second spring 45 can also provide an upward force for the long connecting rod 32 during closing, the energy is saved, and meanwhile, the closing speed is further improved.

When in use, when the fault detection module detects the fault early warning information, the control module sends out the early warning information and enables the second coil 62 to be electrified, thereby inducing eddy currents in the eddy current disk 6 in a direction opposite to the current direction of the second coil 62, thereby generating repulsive force, pushing the eddy current disk 6 to move downward, since the distance between the vortex disk 6 and the second coil 62 is smaller, the larger repulsive force is generated to make the downward movement speed of the vortex disk 6 larger, further driving the long connecting rod 32 fixedly connected with the long connecting rod to rapidly move downwards, then driving the sleeve 25 to rapidly move downwards through the baffle, then driving the movable contact 27 to rapidly move downwards through the slide block 28 and the movable conducting rod 23, realizing rapid separation of the movable contact 27 and the fixed contact 26, realizing rapid opening of the circuit breaker, furthermore, faults can be removed rapidly, safety accidents are prevented, and the use requirements of mine circuit power supply and distribution monitoring are met; on the contrary, the first coil 61 is electrified, so that the rapid switch-on of the circuit breaker can be realized, the time of the switch-on and switch-off process is reduced, the existing time of electric arc between the movable contact 27 and the fixed contact 26 can be reduced, and the probability of serious ablation of the contact due to long-time arc burning is further reduced; through the arrangement of the damping block 29, the impact energy of the push plate 35 can be consumed through the self deformation after the movable contact 27 is contacted with the fixed contact 26, the purpose of damping and buffering is achieved, and the switching-on failure caused by the fact that the movable contact 27 bounces to a large extent due to overlarge impact force is avoided; meanwhile, the impact force of the moving contact to the static contact is reduced, the static contact is prevented from being deformed seriously, and the success rate of closing is further improved; through the arrangement of the holding block 51 and the permanent magnet 5, the stress of the holding block 51 can be increased through the attraction of the holding block 51 and the permanent magnet 5 in the process of opening or closing, and further the stress of the long connecting rod 32 is increased through the second guide rod 53 and the vortex disc 6, so that the opening or closing speed is further increased; meanwhile, the holding block 51 and the permanent magnet 5 can also keep attracting after the switching-off or switching-on is finished, so that the position of the movable contact 27 is fixed through the long connecting rod 32 and the movable conducting rod 23, and the working stability of the circuit breaker is improved; through the arrangement of the first spring 33, impact force can be reduced during switching-on, switching-on failure caused by large bounce of the movable contact 27 is avoided, part of impact energy during switching-on can be converted into elastic potential energy of the first spring 33 to be stored, a downward force can be provided for the long connecting rod 32 during switching-off, energy is saved, and the speed of switching-off is further increased; at the end of the closing or opening process, the distance between the permanent magnet 5 and the holding block 51 is too small, so that the attraction force is increased sharply, and therefore, through the arrangement of the third spring 65 and the buffer sleeve 52, the impact force between the permanent magnet 5 and the holding block 51 can be reduced through elastic deformation, the permanent magnet 5 and the holding block 51 are prevented from being damaged, and the service life is prolonged; through the auxiliary buffer cylinder 4, the pressing plate 44 can be extruded through the long connecting rod 32 during opening, so that the second spring 45 is compressed and deformed, the buffer performance during opening is further improved, meanwhile, the second spring 45 can also provide an upward force for the long connecting rod 32 during closing, the energy is saved, and meanwhile, the closing speed is further improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.