An adjustable digital reclosing switch with circuit detection and its control system

Abstract

The present invention relates to the field of reclosing technology, and in particular to an adjustable digital reclosing device with circuit detection and a control system thereof, comprising: a shell; a first connector, fixed to the top inside the shell, the first connector being electrically connected to the first wiring head; a second connector, fixed to the bottom inside the shell, the second connector being electrically connected to the second wiring head; a tripping detection component, installed between the interior of the reclosing body and the closing switch, for detecting the state of the closing switch; a circuit detection component, for connecting to detect the circuit state when the closing switch trips; the arrangement of the circuit detection component of this device enables automatic detection of the circuit after the reclosing body trips, which is beneficial to avoiding more serious damage during the circuit closing process, thereby helping to avoid safety hazards caused by the automatic closing process of the reclosing body.

Description

Technical Field

[0001] The present invention relates to the field of reclosing switches, and in particular to an adjustable digital reclosing switch with circuit detection and a control system thereof. Background Art

[0002] A recloser is an automatic device in power systems that is used to automatically reclose circuit breakers to restore power after a fault occurs on an overhead line.

[0003] During the use of the reclosing switch, the faults in the circuit are divided into permanent faults and temporary faults. In the case of a temporary fault, the reclosing switch needs to be started to restore the connectivity of the circuit. For permanent faults, such as permanent short circuit faults, if the reclosing switch attempts to connect the circuit, there is a possibility of causing secondary damage to the circuit. Therefore, it is necessary to add a circuit detection system inside the reclosing switch to detect the circuit as soon as possible when the circuit fails. When the circuit is detected to be a permanent fault, the reclosing switch will no longer be started to connect the circuit to protect the circuit. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an adjustable digital reclosing switch with circuit detection and a control system thereof.

[0005] In a first aspect, the present invention provides an adjustable digital reclosing switch with circuit detection, comprising a reclosing switch body, the reclosing switch body comprising a closing switch and a first terminal and a second terminal, and further comprising:

[0006] A housing, fixed to one side of the reclosing switch body;

[0007] a first connector, fixed to the top of the housing, the first connector being electrically connected to the first wiring head;

[0008] a second connector fixed to the bottom of the housing, the second connector being electrically connected to the second wiring head;

[0009] a trip detection assembly, installed between the interior of the reclosing body and the closing switch, for detecting the state of the closing switch;

[0010] A circuit detection component, configured to detect a circuit state when the closing switch is tripped;

[0011] a control unit, configured to control the circuit detection component to start detecting the circuit when the trip detection component detects that the closing switch is in a tripped state, and to control the reclosing body to stop automatically closing when the circuit detection component detects that the circuit is permanently damaged;

[0012] During the use of the device, if the reclosing body trips, the trip detection component detects the closing switch of the reclosing body. When it is detected that the closing switch is in a tripped state, the control unit controls the trip detection component to start. After the trip detection component is started, the state of the circuit is detected. The shell is connected to the reclosing body through the first connector and the second connector, so that the trip detection component inside the shell is electrically connected to the circuit connected to the reclosing body, thereby detecting the state of the circuit. When it is detected that the circuit returns to normal after tripping, the circuit is temporarily damaged. The circuit has returned to normal after the reclosing body trips. At this time, the control unit controls the reclosing body to automatically Automatic closing restores the circuit, which is beneficial to the automatic closing restoration of the circuit and the normal use of the circuit. When it is detected that the circuit is still in an open circuit or short circuit state after tripping, the circuit is permanently damaged. At this time, if the reclosing body is controlled to close, it is easy to cause damage to the equipment during the closing process. At this time, the control unit controls the reclosing body to stop automatic closing, which is beneficial to automatically detect the circuit after the reclosing body trips. When it is detected that the circuit is permanently damaged, the reclosing body is controlled to stop automatic closing, which is beneficial to avoid more serious damage during the circuit closing process, thereby helping to avoid safety hazards caused by the automatic closing process of the reclosing body.

[0013] Preferably, the circuit detection component includes:

[0014] a first connecting piece, sleeved on the exterior of the first connecting head;

[0015] a second connecting piece, sleeved on the outside of the second connecting head;

[0016] a rotating ring rotatably mounted inside the housing, with two connecting contacts symmetrically fixedly mounted on an outer wall of the rotating ring, the two connecting contacts being respectively adapted to the first connecting piece and the second connecting piece;

[0017] A driving assembly, installed inside the housing, for driving the rotating ring to rotate;

[0018] Two fixed conductive sheets are symmetrically fixed inside the housing, and the two fixed conductive sheets are electrically connected to two connection contacts via flexible connecting wires respectively;

[0019] Two extrusion plates are respectively installed on one side of the two fixed conductive sheets through an extrusion drive assembly;

[0020] a first fixing plate fixed to the interior of the housing, wherein a resistor and an electrical detector connected in series are fixed to the first fixing plate;

[0021] The first connecting piece connects the first connector and a connecting contact, the second connecting piece connects the second connector and another connecting contact, the two connecting contacts are respectively connected to the two fixed conductive pieces via flexible connecting wires, and the fixed conductive pieces can be connected to the resistor and the electrical detector on the first fixed plate via wires, so that the resistor and the electrical detector can be connected to the circuit connected to the reclosing body;

[0022] When the trip detection component detects that the closing switch is in the tripped state, the control unit controls the driving component to start. After the driving component is started, the rotating ring is driven to rotate. After the rotating ring rotates, the two connecting contacts are driven to rotate, so that the two connecting contacts are rotated to respectively abut against the first connecting piece and the second connecting piece, thereby connecting the resistor and the electrical detector to the circuit connected to the reclosing body. The existence of the resistor makes it possible to avoid damage to the circuit after connecting the resistor when the circuit is short-circuited, thereby facilitating the electrical detector to detect the circuit. The electrical detector can detect the state of the circuit and detect the current, voltage, etc. of the circuit, thereby identifying the state of the circuit. When it is detected that the circuit is normal, the control unit controls the reclosing body to reclose normally. When it is detected that the circuit is abnormal, the control unit controls the reclosing body to stop closing, thereby helping to avoid safety hazards caused by automatic closing of the reclosing body when the circuit is damaged.

[0023] Preferably, the drive assembly comprises:

[0024] A motor is fixed inside the housing, and a first gear is fixed to the end of the output shaft of the motor;

[0025] a second gear fixed to the outer ring of the rotating ring, the second gear meshing with the first gear;

[0026] After the motor is started, the output shaft drives the first gear to rotate, the first gear drives the second gear meshing with it to rotate, and the second gear drives the rotating ring to rotate, thereby driving the rotating ring to rotate and realize circuit connection.

[0027] Preferably, a detection protection component is further included, which is used to protect the startup of the circuit detection component. The detection protection component includes:

[0028] Two second fixing plates are symmetrically fixed inside the housing;

[0029] Two air bags, respectively fixed on the side walls of the two second fixing plates;

[0030] Two movable plates are fixedly connected to the two airbags respectively, and both movable plates are slidably connected to the inner wall of the shell, and first one-way valves are installed through the side walls of the two movable plates, and the first one-way valves are connected to the airbags;

[0031] a gear transmission assembly, installed between the first gear and the two movable plates, for driving the movable plates to move;

[0032] Two first exhaust pipes are respectively fixed to the side walls of the two second fixing plates and are respectively fixedly connected to the two airbags. A second one-way valve is installed inside each of the two first exhaust pipes. The two first exhaust pipes are fixedly connected via a connecting pipe.

[0033] An arc extinguishing chamber is installed inside the housing;

[0034] When the first gear rotates, the movable plate is driven to move through the gear transmission assembly. Depending on the rotation direction of the first gear, the movable plate can be driven to move in different directions. When the movable plate moves toward the airbag, the movable plate squeezes the airbag, causing the gas inside the airbag to pass through the second one-way valve in one direction to reach the first exhaust pipe, and then through the connecting pipe to reach the first exhaust pipe on the other side, so that airflow is discharged from both first exhaust pipes, thereby causing the airflow to flow toward the two connecting contacts. When the connecting contacts connect the first connecting piece and the second connecting piece to generate an electric spark, the electric spark can be driven by the airflow to flow toward the arc extinguishing chamber, thereby facilitating the arc extinguishing of the electric spark, thereby facilitating the avoidance of safety hazards caused by the electric spark. When the movable plate moves away from the airbag, the movable plate pulls the airbag to expand, causing the airflow to flow through the first one-way valve in one direction toward the interior of the airbag, thereby driving the interior of the airbag to inflate, thereby facilitating the restoration of the airflow inside the airbag, thereby facilitating the protection of the circuit when the circuit detection component is connected to the circuit, thereby facilitating the avoidance of safety hazards caused by the circuit detection component repeatedly being connected to the circuit to generate electric sparks when the circuit repeatedly trips.

[0035] When the first gear rotates in one direction, it can drive the two movable plates to move in two directions, thereby driving the two airbags to inflate and deflate at the same time, which is beneficial to ensure that there is always airflow discharged from the first exhaust pipe to protect the circuit.

[0036] Preferably, it also includes:

[0037] an air box fixed to the inner top of the shell;

[0038] A connecting pipe is fixedly connected to the side wall of the gas box, and a solenoid valve is installed inside the connecting pipe;

[0039] A second exhaust pipe is fixed inside the housing, one end of which passes through the recloser body and extends into the interior thereof, a plurality of circular holes are opened in a linear array on the side of the second exhaust pipe, and the second exhaust pipe is fixedly connected to the connecting pipe;

[0040] When high temperature or spark fire occurs inside the reclosing switch body and shell, the control unit controls the solenoid valve to open, so that the inert gas stored inside the gas box flows out along the connecting pipe and is discharged through the connecting pipe on the second exhaust pipe, filling the interior of the reclosing switch body and shell, thereby making the interior of the reclosing switch body and shell free of oxygen for combustion, thereby helping to avoid safety hazards inside the reclosing switch body and shell.

[0041] In a second aspect, a control system for an adjustable digital reclosing circuit breaker with circuit detection is provided, wherein the control unit includes a memory and a user terminal, and the control system includes the following steps:

[0042] A1. The control unit obtains circuit status information from the circuit detection component, the circuit status information includes circuit abnormality information and circuit normal information;

[0043] A2. The control unit generates reclosing control information based on the circuit status information. When the circuit status information indicates that the circuit is normal, the reclosing control information is closing information. When the circuit status information indicates that the circuit is abnormal, the reclosing control information is warning information.

[0044] A3. The control unit sends the reclosing control information to the reclosing body;

[0045] The circuit detection component detects the status of the circuit, generates circuit abnormality information when a circuit abnormality is detected, and generates circuit normal information when a circuit normal is detected. Both the circuit abnormality information and the circuit normal information are circuit status information. The circuit detection component then sends the circuit status information to the control unit. After receiving the circuit status information, the control unit generates reclosing control information based on the circuit status information. When the circuit status information is circuit abnormality information, the control unit generates warning information as reclosing control information. When the circuit status information is circuit normal information, the control unit generates closing information as reclosing control information. The control unit then sends the reclosing control information to the reclosing body to control the reclosing body to issue a warning or reclose the circuit.

[0046] Preferably, the step A1 includes:

[0047] The control unit obtains current information I0 from the electrical detector;

[0048] The control unit obtains the short-circuit judgment current I1 from the user end;

[0049] When the current information I0 is equal to the short-circuit judgment current I1, the control unit generates circuit-breaking information; when the current information I0 is equal to 0, the control unit generates circuit-breaking information;

[0050] The control unit generates the circuit abnormality information according to the circuit breaking information or the circuit breaking information, otherwise the control unit generates the circuit normal information;

[0051] After the electrical detector is connected to the circuit, it detects the current of the circuit and generates current information I0 from the detected current information. The electrical detector then sends the current information I0 to the control unit. The staff inputs the short-circuit judgment current I1 through the user end, so that the control unit can obtain the short-circuit judgment current I1 from the user end. After receiving the current information I0 and the short-circuit judgment current I1, the control unit compares and judges the current information I0 and the short-circuit judgment current I1. When the current information I0 is equal to the short-circuit judgment current I1, the control unit generates open circuit information. When the current information I0 is equal to 0, the control unit generates open circuit information. When the control unit generates open circuit information or short circuit information, the control unit generates the circuit abnormality information according to the open circuit information or the open circuit information. Otherwise, the control unit generates the circuit normal information.

[0052] Preferably, it also includes:

[0053] The control unit obtains the current trip information from the trip detection component and stores the trip information in the memory, wherein the trip information includes the trip time t0;

[0054] The control unit obtains the trip time t1 of the trip information of the last moment from the memory;

[0055] The control unit obtains threshold information T1 from the user terminal;

[0056] The control unit obtains time difference information P0 according to the trip time t0 and the trip time t1, and substitutes the threshold information T1 and the time difference information P0 into a judgment formula T1>P0. When the judgment formula is met, the control unit generates protection control information;

[0057] The control unit sends the protection control information to the detection and protection component;

[0058] When the trip detection component detects that the closing switch has tripped, it generates the trip information at the current moment and sends the trip information to the memory for storage. The trip information includes the trip time t0 at the time of tripping. Since the control unit sends the trip information to the memory for storage, the control unit can obtain the trip time t1 in the trip information of the previous moment from the memory. The staff inputs the threshold information T1 of the trip time interval from the user end, so that the control unit can obtain the threshold information T1 from the user end. Subsequently, the control unit obtains the time difference information P0 according to the trip time t0 and the trip time t1, and substitutes the time difference information P0 and the threshold information T1 into the judgment formula T1>P0. When it meets the condition When the judgment formula is closed, it means that the time difference information P between the tripping time t0 at the current moment and the tripping time t1 at the previous moment is less than the threshold information T1, which means that the tripping time interval of the reclosing body is lower than the threshold information T1 of the minimum time interval, which means that the reclosing body repeatedly trips in a short period of time, which means that the circuit connected to the reclosing body is repeatedly damaged, and the safety hazard is large. At this time, the control unit generates protection control information and sends the protection control information to the detection and protection component to start the detection and protection component, so that the circuit detection component can protect the inside of the shell when it is started, which is conducive to avoiding the situation where the circuit detection component causes safety hazards during frequent startup.

[0059] Preferably, it also includes:

[0060] The control unit stores the time difference information P0 obtained at the current moment in the memory;

[0061] The control unit obtains a judgment coefficient n from the user terminal;

[0062] The control unit obtains the previous n time difference information P1, P2, P3, ..., P from the memory. n ;

[0063] The control unit transmits the time difference information P1, P2, P3, ..., P n Substitute into the judgment formula P in sequence n <T1, if all the conditions are met, the control unit generates interruption control information, which is used to control the reclosing main body to stop the closing operation;

[0064] The control unit sends the interruption control information to the reclosing body;

[0065] The control unit stores the time difference information P0 obtained at the current moment in the memory, so that the memory stores the time difference information obtained at each adjacent moment, so that the control unit can obtain the time difference information P1, P2, P3, ..., P of the previous n times from the memory. n , and the time difference information of the previous n times P1, P2, P3, ..., P n Compare with T1 respectively, that is, substitute into the judgment formula P n <T1, if they all meet the judgment formula, it means that the time difference of the previous n times is less than the threshold information T1, which means that the reclosing body trips multiple times in a short period of time. Even if the circuit is normal when the circuit is detected after the reclosing body trips, there is still a safety hazard in the circuit connected to the reclosing body. At this time, the control unit generates interruption control information and sends the interruption control information to the reclosing body to control the reclosing body to stop the closing operation.

[0066] Preferably, it also includes:

[0067] The control unit generates detection control information according to the trip information, and the detection control information is used to control the start-up of the trip detection component;

[0068] The control unit sends the detection control information to the trip detection component;

[0069] After the control unit obtains the trip information, the control unit generates detection control information according to the trip information, and sends the detection control information to the trip detection component to control the start-up of the trip detection component.

[0070] Compared with the prior art, the present invention has the following beneficial effects:

[0071] The present invention automatically detects the circuit after the reclosing body trips by setting a circuit detection component. When it is detected that the circuit is permanently damaged, the reclosing body is controlled to stop automatic closing, which is beneficial to avoiding more serious damage during the circuit closing process, thereby helping to avoid safety hazards caused by the automatic closing process of the reclosing body.

[0072] The present invention protects the circuit when the circuit detection component is connected to the circuit by setting the detection protection component, thereby helping to avoid safety hazards caused by the circuit detection component being repeatedly connected to the circuit to form electric sparks when the circuit repeatedly trips. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Figure 1 Schematic diagram of the method of the present invention.

[0074] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0075] Figure 3 It is a schematic diagram of the internal structure of the reclosing switch body of the present invention.

[0076] Figure 4 Schematic diagram of the internal structure of the housing of the present invention.

[0077] Figure 5 It is a schematic structural diagram of the overall cross-section of the present invention.

[0078] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0079] Figure 7 It is a structural diagram of the circuit detection component of the present invention.

[0080] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0081] In the figure: 101, reclosing body; 102, housing; 103, closing switch; 104, first terminal; 105, second terminal; 2, fixed box; 201, pressure switch; 202, tilt box; 301, first connector; 302, first connecting piece; 303, second connector; 304, second connecting piece; 4, rotating ring; 401, connecting contact; 402, flexible connecting wire; 403, fixed conductive piece; 404, first fixed plate; 405, extrusion plate; 5, resistor; 6, electrical detector; 70 1. Motor; 702. First gear; 703. Second gear; 8. Airbag; 801. Moving plate; 802. Second fixed plate; 803. First one-way valve; 804. First exhaust pipe; 805. Second one-way valve; 806. Connecting pipe; 901. Third gear; 902. First bevel gear; 903. Second bevel gear; 904. Screw; 905. Threaded sleeve; 10. Air box; 1001. Connecting pipe; 1002. Solenoid valve; 1003. Second exhaust pipe; 1004. Circular hole; 11. Arc extinguishing chamber. DETAILED DESCRIPTION

[0082] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0083] like Figures 2 to 8 The adjustable digital reclosing switch with circuit detection shown in FIG. 1 includes a reclosing switch body 101 , which includes a closing switch 103 and a first terminal 104 and a second terminal 105 , and further includes:

[0084] The housing 102 is fixed to one side of the reclosing switch body 101;

[0085] The first connector 301 is fixed to the top of the housing 102 and is electrically connected to the first terminal 104 ;

[0086] The second connector 303 is fixed to the bottom of the housing 102 and is electrically connected to the second terminal 105;

[0087] A trip detection assembly is installed between the interior of the reclosing body 101 and the closing switch 103 and is used to detect the state of the closing switch 103;

[0088] A circuit detection component, used to detect the circuit status when the closing switch 103 is tripped;

[0089] A control unit, configured to control the circuit detection component to start detecting the circuit when the trip detection component detects that the closing switch 103 is in a tripped state, and to control the reclosing body 101 to stop automatically closing when the circuit detection component detects that the circuit is permanently damaged;

[0090] During the use of the reclosing switch, the faults in the circuit are divided into permanent faults and temporary faults. In the case of a temporary fault, the reclosing switch needs to be activated to restore the circuit connectivity. For a permanent fault, such as a permanent short circuit fault, if the reclosing switch attempts to connect the circuit, there is a possibility of causing secondary damage to the circuit. Therefore, it is necessary to add a circuit detection system inside the reclosing switch to detect the circuit as soon as the circuit fault occurs. When the circuit is detected to be a permanent fault, the reclosing switch will no longer be activated to connect the circuit to protect the circuit.

[0091] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: during the use of the device, if the reclosing body 101 trips, the trip detection component detects the closing switch 103 of the reclosing body 101. When it is detected that the closing switch 103 is in a tripped state, the control unit controls the trip detection component to start. After the trip detection component is started, the state of the circuit is detected. The shell 102 is connected to the reclosing body 101 through the first connector 301 and the second connector 303, so that the trip detection component inside the shell 102 is electrically connected to the circuit connected to the reclosing body 101, thereby detecting the state of the circuit. When it is detected that the circuit returns to normal after tripping, the circuit is temporarily damaged. After the reclosing body 101 trips, the circuit has been After returning to normal, the control unit controls the reclosing body 101 to automatically close and restore the circuit, which is beneficial to the automatic closing restoration of the circuit and the normal use of the circuit. When it is detected that the circuit is still in an open circuit or short circuit state after tripping, the circuit is permanently damaged. At this time, if the reclosing body 101 is controlled to close, it is easy to cause damage to the equipment during the closing process. At this time, the control unit controls the reclosing body 101 to stop automatically closing, which is beneficial to automatically detect the circuit after the reclosing body 101 trips. When it is detected that the circuit is permanently damaged, the reclosing body 101 is controlled to stop automatically closing, which is beneficial to avoid more serious damage during the circuit closing process, thereby helping to avoid safety hazards caused by the automatic closing process of the reclosing body 101.

[0092] The trip detection components include:

[0093] The fixing box 2 is fixed on the inner wall of the reclosing body 101;

[0094] The flip box 202 is coaxially fixed to the side wall of the closing switch 103;

[0095] Two pressure switches 201 are symmetrically fixed on the side walls of the fixed box 2. When the flip box 202 flips, it adapts to the two pressure switches 201 respectively;

[0096] When the closing switch 103 trips and closes, it drives the flip box 202 to rotate synchronously. When the flip box 202 flips to the tripping and closing states, it squeezes the two pressure switches 103 respectively, thereby detecting the state of the closing switch 103, which is conducive to starting the detection of the control circuit detection component when the closing switch 103 trips.

[0097] As an optional embodiment, the circuit detection component includes:

[0098] The first connecting piece 302 is sleeved on the outside of the first connecting head 301;

[0099] The second connecting piece 304 is sleeved on the outside of the second connecting head 303;

[0100] The rotating ring 4 is rotatably mounted inside the housing 102 . Two connecting contacts 401 are symmetrically fixedly mounted on the outer wall of the rotating ring 4 . The two connecting contacts 401 are respectively adapted to the first connecting piece 302 and the second connecting piece 304 .

[0101] A driving assembly, installed inside the housing 102, for driving the rotating ring 4 to rotate;

[0102] Two fixed conductive sheets 403 are symmetrically fixed inside the housing 102 , and the two fixed conductive sheets 403 are electrically connected to the two connection contacts 401 through flexible connecting wires 402 ;

[0103] Two extrusion plates 405 are respectively installed on one side of the two fixed conductive plates 403 through an extrusion drive assembly;

[0104] A first fixing plate 404 is fixed to the interior of the housing 102 , and a resistor 5 and an electrical detector 6 connected in series are fixed to the first fixing plate 404 ;

[0105] The first connecting piece 302 connects the first connector 301 and a connecting contact 401, the second connecting piece 304 connects the second connector 303 and another connecting contact 401, and the two connecting contacts 401 are respectively connected to two fixed conductive pieces 403 via flexible connecting wires 402. The fixed conductive pieces 403 can be connected to the resistor 5 and the electrical detector 6 on the first fixed plate 404 via wires, so that the resistor 5 and the electrical detector 6 can be connected to the circuit connected to the reclosing body 101;

[0106] When the trip detection component detects that the closing switch 103 is in the tripped state, the control unit controls the driving component to start. After the driving component is started, the rotating ring 4 is driven to rotate. After the rotating ring 4 rotates, the two connecting contacts 401 are driven to rotate, so that the two connecting contacts 401 are rotated to respectively abut against the first connecting piece 302 and the second connecting piece 304, so that the resistor 5 and the electric detector 6 are connected to the circuit connected to the reclosing body 101. The presence of the resistor 5 makes it possible to avoid damage to the circuit after connecting the resistor 5 when the circuit is short-circuited, so that the electric detector 6 can detect the circuit. The electric detector 6 can detect the state of the circuit and detect the current, voltage, etc. of the circuit, so as to identify the state of the circuit. When it is detected that the circuit is normal, the control unit controls the reclosing body 101 to reclose normally. When it is detected that the circuit is abnormal, the control unit controls the reclosing body 101 to stop closing, so as to avoid the safety hazard caused by the automatic closing of the reclosing body 101 when the circuit is damaged.

[0107] As an optional embodiment, the driving component includes:

[0108] The motor 701 is fixed inside the housing 102, and a first gear 702 is fixed to the end of the output shaft of the motor 701;

[0109] The second gear 703 is fixed to the outer ring of the rotating ring 4 and meshes with the first gear 702;

[0110] After the motor 701 is started, it drives the first gear 702 to rotate through the output shaft, the first gear 702 drives the second gear 703 engaged therewith to rotate, and the second gear 703 drives the rotating ring 4 to rotate, thereby driving the rotating ring 4 to rotate and realize the circuit connection.

[0111] As an optional embodiment, a detection protection component is further included, which is used to protect the startup of the circuit detection component. The detection protection component includes:

[0112] Two second fixing plates 802 are symmetrically fixed inside the housing 102;

[0113] Two air bags 8 are fixed on the side walls of the two second fixing plates 802 respectively;

[0114] Two movable plates 801 are fixedly connected to the two airbags 8 respectively, and both movable plates 801 are slidably connected to the inner wall of the housing 102. First one-way valves 803 are installed through the side walls of the two movable plates 801, and the first one-way valves 803 are connected to the airbags 8;

[0115] A gear transmission assembly is installed between the first gear 702 and the two movable plates 801, and is used to drive the movable plates 801 to move;

[0116] Two first exhaust pipes 804 are respectively fixed to the side walls of the two second fixing plates 802 and are fixedly connected to the two airbags 8. A second one-way valve 805 is installed inside each of the two first exhaust pipes 804. The two first exhaust pipes 804 are fixedly connected via a connecting pipe 806.

[0117] The arc extinguishing chamber 11 is installed inside the housing 102;

[0118] When the first gear 702 rotates, the movable plate 801 is driven to move through the gear transmission assembly. According to the different rotation directions of the first gear 702, the movable plate 801 can be driven to move in different directions. When the movable plate 801 moves toward the direction close to the airbag 8, the movable plate 801 squeezes the airbag 8, so that the gas inside the airbag 8 passes through the second one-way valve 805 in one direction to reach the first exhaust pipe 804, and reaches the first exhaust pipe 804 on the other side through the connecting pipe 806, so that air is discharged from both first exhaust pipes 804, thereby making the air flow flow toward the two connecting contacts 401, so that the connecting contacts 401 connect the first connecting piece 302 and the second connecting piece. When the sheet 304 generates an electric spark, the electric spark can be driven by the airflow to flow toward the arc extinguishing chamber 11, thereby facilitating the arc extinguishing of the electric spark, thereby facilitating the occurrence of safety hazards caused by the electric spark. When the movable plate 801 moves in a direction away from the airbag 8, the movable plate 801 pulls the airbag 8 to expand, causing the airflow to flow unidirectionally toward the interior of the airbag 8 through the first one-way valve 803, thereby driving the interior of the airbag 8 to inflate, thereby facilitating the restoration of the airflow inside the airbag 8, thereby facilitating the protection of the circuit when the circuit detection component is connected to the circuit, thereby facilitating the occurrence of safety hazards caused by the circuit detection component repeatedly being repeatedly connected to the circuit to generate electric sparks when the circuit repeatedly trips.

[0119] When the first gear 702 rotates in one direction, it can drive the two movable plates 801 to move in two directions, thereby driving the two airbags 8 to inflate and deflate at the same time, which is beneficial to ensure that there is always airflow discharged from the first exhaust pipe 804 to protect the circuit.

[0120] The gear transmission assembly includes:

[0121] Two third gears 901 are rotatably mounted on the inner wall of the housing 102 , and the two third gears 901 are meshed with the first gear 702 ;

[0122] The two first bevel gears 902 are coaxially fixedly connected to the two third gears 901 respectively;

[0123] The two screw rods 904 are both rotatably mounted inside the housing 102 through a bracket;

[0124] The two second bevel gears 903 are coaxially fixedly connected to the two screw rods 904 , and the two second bevel gears 903 are respectively meshed with the two first bevel gears 902 ;

[0125] Two threaded sleeves 905 are fixed to the ends of the two movable plates 801 respectively, and the two threaded sleeves 905 are threadedly connected to the two screw rods 904 respectively;

[0126] When the first gear 702 rotates, it drives the third gear 901 meshing with it to rotate, the third gear 901 drives the first bevel gear 902 to rotate, the first bevel gear 902 drives the second bevel gear 903 meshing with it to rotate, the second bevel gear 903 drives the screw 904 to rotate, the screw 904 drives the threaded sleeve 905 threadedly connected to it to move, and the threaded sleeve 905 drives the movable plate 801 to move, thereby achieving the goal of driving the movable plate 801 to move while driving the rotating ring 4 to rotate and switch.

[0127] As an optional embodiment, it also includes:

[0128] The air box 10 is fixed to the inner top of the housing 102;

[0129] The connecting pipe 1001 is fixedly connected to the side wall of the gas box 10, and a solenoid valve 1002 is installed inside the connecting pipe 1001;

[0130] The second exhaust pipe 1003 is fixed inside the housing 102, with one end penetrating the recloser body 101 and extending into the interior thereof. The side of the second exhaust pipe 1003 is provided with a plurality of circular holes 1004 in a linear array. The second exhaust pipe 1003 is fixedly connected to the connecting pipe 1001;

[0131] When high temperature or spark fire occurs inside the reclosing switch body 101 and the shell 102, the control unit controls the solenoid valve 1002 to open, so that the inert gas stored inside the gas box 10 flows out along the connecting pipe 1001 and is discharged through the connecting pipe 1001 on the second exhaust pipe 1003, filling the interior of the reclosing switch body 101 and the shell 102, thereby making the interior of the reclosing switch body 101 and the shell 102 free of oxygen for combustion, thereby helping to avoid safety hazards inside the reclosing switch body 101 and the shell 102.

[0132] like Figure 1 The control system of an adjustable digital reclosing switch with circuit detection is shown, wherein the control unit includes a memory and a user terminal. The control system includes the following steps:

[0133] A1. The control unit obtains circuit status information from the circuit detection component, where the circuit status information includes circuit abnormality information and circuit normal information;

[0134] A2. The control unit generates reclosing control information based on the circuit status information. When the circuit status information indicates normal circuit information, the reclosing control information is closing information. When the circuit status information indicates abnormal circuit information, the reclosing control information is warning information.

[0135] A3. The control unit sends the reclosing control information to the reclosing body 101;

[0136] The circuit detection component detects the status of the circuit, generates circuit abnormality information when a circuit abnormality is detected, and generates circuit normal information when a circuit normal is detected. Both the circuit abnormality information and the circuit normal information are circuit status information. The circuit detection component then sends the circuit status information to the control unit. After receiving the circuit status information, the control unit generates reclosing control information based on the circuit status information. When the circuit status information is circuit abnormality information, the control unit generates warning information as reclosing control information. When the circuit status information is circuit normal information, the control unit generates closing information as reclosing control information. The control unit then sends the reclosing control information to the reclosing body 101 to control the reclosing body 101 to issue a warning or reclose the circuit.

[0137] As an optional embodiment, step A1 includes:

[0138] The control unit obtains the current information I0 from the electrical detector 6;

[0139] The control unit obtains the short-circuit judgment current I1 from the user end;

[0140] When the current information I0 is equal to the short-circuit judgment current I1, the control unit generates a circuit-breaking information; when the current information I0 is equal to 0, the control unit generates a circuit-breaking information;

[0141] The control unit generates circuit abnormality information based on the disconnection information or the disconnection information, otherwise the control unit generates circuit normal information;

[0142] After the electrical detector 6 is connected to the circuit, it detects the current of the circuit and generates current information I0 from the detected current information. Then the electrical detector 6 sends the current information I0 to the control unit. The staff inputs the short-circuit judgment current I1 through the user end, so that the control unit can obtain the short-circuit judgment current I1 from the user end. After receiving the current information I0 and the short-circuit judgment current I1, the control unit compares and judges the current information I0 and the short-circuit judgment current I1. When the current information I0 is equal to the short-circuit judgment current I1, the control unit generates open circuit information. When the current information I0 is equal to 0, the control unit generates open circuit information. When the control unit generates open circuit information or short circuit information, the control unit generates circuit abnormality information according to the open circuit information or open circuit information. Otherwise, the control unit generates circuit normal information.

[0143] As an optional embodiment, it also includes:

[0144] The control unit obtains the current trip information from the trip detection component and stores the trip information in the memory, where the trip information includes the trip time t0;

[0145] The control unit obtains the trip time t1 of the trip information of the last moment from the memory;

[0146] The control unit obtains threshold information T1 from the user end;

[0147] The control unit obtains the time difference information P0 according to the tripping time t0 and the tripping time t1, and substitutes the threshold information T1 and the time difference information P0 into the judgment formula T1>P0. When the judgment formula is met, the control unit generates protection control information;

[0148] The control unit sends the protection control information to the detection and protection component;

[0149] When the trip detection component detects that the closing switch 103 has tripped, it generates the trip information at the current moment and sends the trip information to the memory for storage. The trip information includes the trip time t0 at the time of tripping. Since the control unit sends the trip information to the memory for storage, the control unit can obtain the trip time t1 in the trip information of the previous moment from the memory. The staff inputs the threshold information T1 of the trip time interval from the user end, so that the control unit can obtain the threshold information T1 from the user end. Then the control unit obtains the time difference information P0 according to the trip time t0 and the trip time t1, and substitutes the time difference information P0 and the threshold information T1 into the judgment formula T1>P0. When the judgment formula is met, That is, the time difference information P between the tripping time t0 at the current moment and the tripping time t1 at the previous moment is less than the threshold information T1, that is, the tripping time interval of the reclosing body 101 is lower than the threshold information T1 of the minimum time interval, which means that the reclosing body 101 trips repeatedly in a short period of time, which means that the circuit connected to the reclosing body 101 is repeatedly damaged, and the safety hazard is large. At this time, the control unit generates protection control information and sends the protection control information to the detection and protection component to start the detection and protection component, so that the circuit detection component can protect the inside of the shell 102 when it is started, which is conducive to avoiding the situation where the circuit detection component causes safety hazards during frequent startup.

[0150] As an optional embodiment, it also includes:

[0151] The control unit stores the time difference information P0 obtained at the current moment in the memory;

[0152] The control unit obtains the judgment coefficient n from the user end;

[0153] The control unit obtains the previous n time difference information P1, P2, P3, ..., P from the memory n ;

[0154] The control unit sends the time difference information P1, P2, P3, ..., P n Substitute into the judgment formula P in sequence n<T1, if all the conditions are met, the control unit generates interruption control information, which is used to control the reclosing body 101 to stop the closing operation;

[0155] The control unit sends the interruption control information to the reclosing body 101;

[0156] The control unit stores the time difference information P0 obtained at the current moment into the memory, so that the memory stores the time difference information obtained at each adjacent moment, so that the control unit can obtain the time difference information P1, P2, P3, ..., P0 of the previous n times from the memory. n , and the time difference information of the previous n times P1, P2, P3, ..., P n Compare with T1 respectively, that is, substitute into the judgment formula P n <T1, if they all meet the judgment formula, it means that the time difference of the previous n times is less than the threshold information T1, which means that the reclosing body 101 trips multiple times in a short period of time. Even when the circuit is tested after the reclosing body 101 trips, the circuit is normal. At this time, there is still a safety hazard in the circuit connected to the reclosing body 101. At this time, the control unit generates an interrupt control information and sends the interrupt control information to the reclosing body 101 to control the reclosing body 101 to stop the closing operation.

[0157] As an optional embodiment, it also includes:

[0158] The control unit generates detection control information according to the trip information, and the detection control information is used to control the start of the trip detection component;

[0159] The control unit sends the detection control information to the trip detection component;

[0160] After the control unit obtains the trip information, the control unit generates detection control information according to the trip information, and sends the detection control information to the trip detection component to control the start of the trip detection component.

[0161] Working principle of the present invention: During the use of the device, if the reclosing main body 101 trips, the tripping detection component detects the closing switch 103 of the reclosing main body 101. When it is detected that the closing switch 103 is in the tripping state, the control unit controls the tripping detection component to start. After the tripping detection component is started, the state of the circuit is detected. The shell 102 is connected to the main body of the reclosing main body 101 through the first connector 301 and the second connector 303, so that the tripping detection component inside the shell 102 is electrically connected to the circuit connected to the reclosing main body 101, thereby detecting the state of the circuit. When it is detected that the circuit returns to normal after tripping, the circuit is temporarily damaged. After the reclosing main body 101 trips, the circuit has returned to normal. At this time, the control unit controls the tripping detection component to start. The control unit controls the reclosing body 101 to automatically close and restore the circuit, which is beneficial to the automatic closing restoration of the circuit and the normal use of the circuit. When it is detected that the circuit is still in an open circuit or short circuit state after tripping, the circuit is permanently damaged. At this time, if the reclosing body 101 is controlled to close, it is easy to cause damage to the equipment during the closing process. At this time, the control unit controls the reclosing body 101 to stop automatically closing, which is beneficial to automatically detect the circuit after the reclosing body 101 trips. When it is detected that the circuit is permanently damaged, the reclosing body 101 is controlled to stop automatically closing, which is beneficial to avoid more serious damage during the circuit closing process, thereby helping to avoid safety hazards caused by the automatic closing process of the reclosing body 101.

[0162] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. An adjustable digital reclosing switch with circuit detection, comprising a reclosing switch body (101), wherein the reclosing switch body (101) comprises a closing switch (103) and a first terminal (104), and a second terminal (105), characterized in that: Also includes: A housing (102) is fixed to one side of the reclosing switch body (101); A first connector (301) is fixed to the top of the housing (102), and the first connector (301) is electrically connected to the first wiring connector (104); A second connector (303) is fixed to the bottom of the housing (102), and the second connector (303) is electrically connected to the second terminal (105); A trip detection component is installed between the interior of the reclosing body (101) and the closing switch (103), and is used to detect the state of the closing switch (103); A circuit detection component, used for detecting the circuit state when the closing switch (103) is connected and tripped; a control unit, configured to control the circuit detection component to start detecting the circuit when the trip detection component detects that the closing switch (103) is in a tripped state, and to control the reclosing body (101) to stop automatically closing when the circuit detection component detects that the circuit is permanently damaged; The circuit detection component includes: A first connecting piece (302) is sleeved on the outside of the first connecting head (301); A second connecting piece (304) is sleeved on the outside of the second connecting head (303); A rotating ring (4) is rotatably mounted inside the housing (102), and two connecting contacts (401) are symmetrically fixedly mounted on the outer wall of the rotating ring (4), and the two connecting contacts (401) are respectively adapted to the first connecting piece (302) and the second connecting piece (304); A driving assembly, installed inside the housing (102), for driving the rotating ring (4) to rotate; Two fixed conductive sheets (403) are symmetrically fixed inside the housing (102), and the two fixed conductive sheets (403) are electrically connected to the two connection contacts (401) via flexible connecting wires (402) respectively; Two extrusion plates (405) are respectively installed on one side of the two fixed conductive sheets (403) through an extrusion drive assembly; A first fixing plate (404) is fixed inside the housing (102), and a resistor (5) and an electrical detector (6) connected in series are fixed on the first fixing plate (404); It also includes a detection protection component for protecting the startup of the circuit detection component.

2. The adjustable digital reclosing device with circuit detection according to claim 1, characterized in that: The drive assembly includes: A motor (701) is fixed inside the housing (102), and a first gear (702) is fixed to the end of the output shaft of the motor (701); The second gear (703) is fixed to the outer ring of the rotating ring (4), and the second gear (703) is meshed with the first gear (702).

3. The adjustable digital reclosing device with circuit detection according to claim 2, characterized in that: The detection and protection component includes: Two second fixing plates (802) are symmetrically fixed inside the housing (102); Two air bags (8) are respectively fixed on the side walls of the two second fixing plates (802); Two movable plates (801) are fixedly connected to the two airbags (8) respectively, and the two movable plates (801) are slidably connected to the inner wall of the housing (102), and first one-way valves (803) are installed through the side walls of the two movable plates (801), and the first one-way valves (803) are connected to the airbags (8); a gear transmission assembly, installed between the first gear (702) and the two movable plates (801), and used for driving the movable plates (801) to move; Two first exhaust pipes (804) are respectively fixed on the side walls of the two second fixing plates (802) and are respectively fixedly connected to the two air bags (8). A second one-way valve (805) is installed inside the two first exhaust pipes (804). The two first exhaust pipes (804) are fixedly connected via a connecting pipe (806); The arc extinguishing chamber (11) is installed inside the housing (102).

4. The adjustable digital reclosing device with circuit detection according to claim 3, characterized in that: Also includes: An air box (10) is fixed to the inner top of the housing (102); A connecting pipe (1001) is fixedly connected to the side wall of the gas box (10), and a solenoid valve (1002) is installed inside the connecting pipe (1001); The second exhaust pipe (1003) is fixed inside the shell (102), one end of which passes through the reclosing switch body (101) and extends into the interior thereof; a plurality of circular holes (1004) are provided on the side of the second exhaust pipe (1003) in a linear array; the second exhaust pipe (1003) is fixedly connected to the connecting pipe (1001).

5. A control system for an adjustable digital reclosing switch with circuit detection, applicable to the adjustable digital reclosing switch with circuit detection as claimed in any one of claims 3 to 4, characterized in that: The control unit includes a memory and a user terminal, and the management and control system includes the following steps: A1. The control unit obtains circuit status information from the circuit detection component, the circuit status information includes circuit abnormality information and circuit normal information; A2. The control unit generates reclosing control information based on the circuit status information. When the circuit status information indicates that the circuit is normal, the reclosing control information is closing information. When the circuit status information indicates that the circuit is abnormal, the reclosing control information is warning information. A3. The control unit sends the reclosing control information to the reclosing body (101).

6. The control system of an adjustable digital reclosing circuit detection system according to claim 5, characterized in that: The A1 step includes: The control unit obtains current information I0 from the electrical detector (6); The control unit obtains the short-circuit judgment current I1 from the user end; When the current information I0 is equal to the short-circuit judgment current I1, the control unit generates circuit-breaking information; when the current information I0 is equal to 0, the control unit generates circuit-breaking information; The control unit generates the circuit abnormality information according to the disconnection information or the disconnection information, otherwise the control unit generates the circuit normal information.

7. The control system of an adjustable digital reclosing circuit detection system according to claim 5, characterized in that: Also includes: The control unit obtains the current trip information from the trip detection component and stores the trip information in the memory, wherein the trip information includes the trip time t0; The control unit obtains the trip time t1 of the trip information of the last moment from the memory; The control unit obtains threshold information T1 from the user terminal; The control unit obtains time difference information P0 according to the trip time t0 and the trip time t1, and substitutes the threshold information T1 and the time difference information P0 into a judgment formula T1>P0. When the judgment formula is met, the control unit generates protection control information; The control unit sends the protection control information to the detection and protection component.

8. The control system of an adjustable digital reclosing circuit detection system according to claim 7, characterized in that: Also includes: The control unit stores the time difference information P0 obtained at the current moment in the memory; The control unit obtains a judgment coefficient n from the user terminal; The control unit obtains the previous n time difference information P1, P2, P3, ..., Pn from the memory; The control unit sequentially substitutes the time difference information P1, P2, P3, ..., Pn into the judgment formula Pn < T1. If all of the time difference information P1, P2, P3, ..., Pn meet the judgment formula, the control unit generates interruption control information, and the interruption control information is used to control the reclosing main body (101) to stop the closing operation. The control unit sends the interruption control information to the reclosing body (101).

9. The control system of an adjustable digital reclosing circuit detection system according to claim 7, characterized in that: Also includes: The control unit generates detection control information according to the trip information, and the detection control information is used to control the start-up of the trip detection component; The control unit sends the detection control information to the trip detection component.

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