Intelligent stroke position magnetic induction device for electrical equipment

Abstract

The utility model discloses an intelligent stroke position magnetic induction device for electrical equipment, which is characterized in that a magnetic induction sensor and a magnetic induction receiving device are arranged in the electrical equipment, and the magnetic induction sensor comprises a magnetic induction device and a magnetic steel accessory. The magnetic steel accessory is installed on a component with a motion stroke in the electrical equipment and moves along with the component, the magnetic induction device is installed beside a stroke track route of the component with the motion stroke, and the magnetic induction receiving device is installed in the electrical equipment and used for receiving switching value state signals transmitted by the magnetic induction device. The switch cabinet travel switch has the characteristics of intuition, high efficiency, remote electrical position indication, stable operation, intelligence and the like, can be designed according to different structural devices, ensures the safety and reliability of power supply, and solves the problems that the conventional switch cabinet travel switch has insufficient point positions and is difficult to transform, and a pure mechanical travel switch is not easy to maintain after being damaged; and the signal cannot be uploaded.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the switchgear control equipment technical field, especially be related to intelligent stroke position magnetic induction device for electrical equipment. BACKGROUND

[0002] Traditional high voltage switch cabinet needs to increase the position detection of part mechanism in the later intelligent scheme reconstruction, the stroke switch inside the original configuration component itself exists the problem that the quantity cannot meet the requirement, and the change of the original stroke switch often leads to the change of the mechanism inside the component, poor matching, reconstruction difficulty and a series of problems, especially the intelligent reconstruction of some different source position detection signal transmission, which determines that a stroke position detection device must be externally matched.

[0003] The stroke switch of the existing mechanism is mostly cable connection, and there is cable swinging when the mechanism operates, which exists a safety hazard.

[0004] From the above, it can be seen that the existing mechanical stroke switch configuration reconstruction is difficult, the operation efficiency is low, the occupied time is large, the labor cost is high, and the safety and accuracy cannot be effectively guaranteed. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at improving the deficiency of prior art and provides intelligent stroke position magnetic induction device for electrical equipment, which has the characteristics of intuitive efficiency, remote electrical position indication, stable operation, intelligence, power supply safety and reliability, solves the problems of insufficient switch cabinet machine stroke switch point, difficult reconstruction, difficult maintenance of pure mechanical stroke switch damage, and signal uploading, and there is no cable connection between the magnetic induction device and the magnetic steel accessory, there is no cable swinging when the mechanism operates, and there is no safety hazard, the magnetic induction sensor is installed with accessories, and the installation in the narrow switch cabinet can be realized.

[0006] The utility model aims at improving the deficiency of prior art and provides intelligent stroke position magnetic induction device for electrical equipment, which has the characteristics of intuitive efficiency, remote electrical position indication, stable operation, intelligence, power supply safety and reliability, solves the problems of insufficient switch cabinet machine stroke switch point, difficult reconstruction, difficult maintenance of pure mechanical stroke switch damage, and signal uploading, and there is no cable connection between the magnetic induction device and the magnetic steel accessory, there is no cable swinging when the mechanism operates, and there is no safety hazard, the magnetic induction sensor is installed with accessories, and the installation in the narrow switch cabinet can be realized.

[0007] The magnetic steel accessory is installed on the component with movement stroke in the electrical equipment and moves with the component, and the magnetic steel accessory has strong magnetism.

[0008] The magnetic induction device is installed on the stroke track route of the component with movement stroke, has sensitive characteristics to specific magnetic field, and outputs switch quantity state signals corresponding to the change of the inducted magnetic field.

[0009] The magnetic induction receiving device is installed in the electrical equipment and is used for receiving the switch quantity state signal transmitted by the magnetic induction device to realize the state collection and recognition of the stroke position of the component with the stroke.

[0010] In order to further realize the purpose of the utility model, the length of the magnetic induction device can be equal to the straight line distance length between the starting point and the ending point of the stroke of the component with the stroke, and the two end positions of the magnetic induction component correspond to the starting point and the ending point of the stroke respectively.

[0011] In order to further realize the purpose of the utility model, the component with the stroke can include but is not limited to the rotating shaft of the knife switch mechanism, the handcart of the circuit breaker, the valve, the handcart operation pressing plate and the ground knife operation pressing plate.

[0012] Compared with the prior art, the utility model has the following remarkable features and positive effects: the magnetic induction device has sensitive characteristics to specific magnetic fields, the magnetic steel accessory follows the linkage of the mechanism and has strong magnetism, there is no cable connection between the magnetic induction device and the magnetic steel accessory, there is no cable swing when the mechanism is operated, there is no safety hazard, the device has small volume, can be installed on the guide rail or attached, is especially suitable for the application occasions with small installation space of the knife switch closing and opening position and the circuit breaker working and testing position in the power distribution cabinet of the transformer substation. The utility model solves the problems of small transformation space of the stroke position of the old mechanism, complicated transformation and safety hazard of cable swing, has the characteristics of electrical alarm indication, intelligence, simple operation, reduced operation cost and saved labor, ensures the safety and reliability of power supply. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a principle schematic view of the utility model.

[0014] Figure 2 is a schematic view of the magnetic induction working principle.

[0015] Figure 3 is a schematic view of the utility model for detecting the working and testing position of the circuit breaker.

[0016] Figure 4 is a schematic view of the utility model for detecting the closing and opening position of the ground knife.

[0017] In the drawing: 1, magnetic steel accessory, 2, magnetic induction device, 3, magnetic induction receiving device, 4, circuit breaker, 5, knife switch rotating main shaft, 6, knife switch accessory mounting plate. DETAILED DESCRIPTION

[0018] The utility model will be further described in detail in combination with the drawings and embodiments.

[0019] An intelligent stroke position magnetic induction device for electrical equipment, comprising an electrical equipment, referring to Figure 1 、 Figure 2 , a magnetic induction sensor and a magnetic induction receiving device 3 are installed in the electrical equipment, the magnetic induction sensor comprises a magnetic induction device 2 and a magnetic steel accessory 1, wherein:

[0020] The magnetic steel accessory 1 is installed on a component with a stroke in the electrical equipment and moves with the component, the magnetic steel accessory 1 has strong magnetism, and the component with the stroke comprises, but is not limited to, a rotating shaft of a knife switch mechanism, a circuit breaker trolley, a valve, a trolley operating pressure plate and a ground knife operating pressure plate in the electrical equipment;

[0021] The magnetic induction device 2 is installed on a stationary component in the electrical equipment beside the stroke track of the component with the stroke, has sensitive characteristics to a specific magnetic field, and when the specific magnetic field approaches or moves away from the magnetic induction device 2 at a specific angle, the magnetic induction device 2 can sense the existence or disappearance of the magnetic field, so as to output a switch quantity state signal corresponding thereto;

[0022] The magnetic induction receiving device 3 is installed in the electrical equipment and is used for receiving the switch quantity state signal transmitted by the magnetic induction device 2, realizes state acquisition and identification of the stroke position of the component with the stroke in the electrical equipment, can at least meet three working position state detection, provides three position or working, test two position state detection and sensor abnormality signals, can be installed on a guide rail or be attached, and is particularly suitable for application occasions with small installation space, such as transformer substation one-key sequence control knife switch double confirmation and circuit breaker position double confirmation.

[0023] Further, the length of the magnetic induction device 2 is equal to the straight line distance length between the starting point and the ending point of the stroke of the component with the stroke, and the positions of the two ends of the magnetic induction component correspond to the starting point and the ending point of the stroke, respectively.

[0024] The working principle of the utility model is that the magnetic induction device 2 has sensitive characteristics to a specific magnetic field, when the specific magnetic field approaches or moves away from the magnetic induction device 2 at a specific angle, the magnetic induction device 2 can sense the existence or disappearance of the magnetic field, so as to output a switch quantity state signal corresponding thereto.

[0025] The magnetic steel accessory 1 is installed on a rotating shaft or a linkage rod of the electrical equipment or a moving component and moves with the mechanism; the magnetic induction device 2 is fixed on a stationary component of the electrical equipment through an installation accessory and detects the on and off state positions or the working and test positions, respectively; only when the mechanism is operated to the on and off positions or the stroke is in place, the magnetic induction device 2 corresponding to the state position is turned on by the magnetic field strength generated by the magnetic steel accessory, so as to realize detection of the position state of the mechanism.

[0026] The utility model discloses below respectively install in circuit breaker, knife switch as example further detailed explanation.

[0027] 1, refer to Figure 3 , detect circuit breaker 4 working position, test position, install magnetic induction device 2 on the indoor side wall of circuit breaker 4, install magnetic steel accessory 1 on circuit breaker 4, remote circuit breaker 4 to circuit breaker room test position, determine the position of magnetic steel, remote circuit breaker to working position again, determine the position of magnetic steel, make the length of magnetic induction device 2 through the straight line distance of two positions, guarantee when working position and test position, magnetic induction device 2 effective induction magnetic field change, magnetic induction device 2 according to the change of magnetic field, output signal transmission to magnetic induction receiving device 3, accept signal change, corresponding output circuit breaker 4 in test position and working position switch quantity signal, this switch quantity signal can supply other device to carry out collection, induction receiving device 3 is equipped with communication module simultaneously, can be used as communication remote transmission, induction receiving device 3 has fault detection and position signal, fault signal indication simultaneously, also can provide judgment for local display;

[0028] 2, refer to Figure 4 , install magnetic steel accessory 1 on the rotating main shaft of knife switch 5, install magnetic induction device 2 on the installation plate of knife switch accessory 6, detect the closing position of knife switch, open position, install magnetic induction device 2 on the installation plate near knife switch, install magnetic steel accessory 1 on the rotating main shaft of knife switch 5, rotate knife switch to closing position, determine the position of magnetic steel, rotate knife switch to open position again, determine the position of magnetic steel, make the length of magnetic induction device 2 through the straight line distance of two positions, guarantee when closing and opening, magnetic induction device 2 effective induction magnetic field change, magnetic induction device 2 according to the change of magnetic field, output signal transmission to magnetic induction receiving device, accept signal change, corresponding output knife switch in closing position and open position switch quantity signal, this switch quantity signal can supply other device to carry out collection, induction receiving device 3 is equipped with communication module simultaneously, can be used as communication remote transmission, induction receiving device 3 has fault detection and position signal, fault signal indication simultaneously, also can provide judgment for local display.

Claims

1. An intelligent stroke position magnetic sensing device for an electrical device comprising an electrical device, characterized in that In an electrical device, a magnetic induction sensor and a magnetic induction receiving device are installed, the magnetic induction sensor comprises a magnetic induction device and a magnetic steel accessory, wherein: The magnetic steel accessory is installed on a component with a movement stroke in the electrical device and moves with the component, and the magnetic steel accessory has strong magnetism; The magnetic induction device is installed beside the stroke trajectory route of the component with a movement stroke, has sensitive characteristics to a specific magnetic field, and outputs a switch state signal corresponding to the change of the sensed magnetic field; The magnetic induction receiving device is installed in the electrical device to receive the switch state signal transmitted by the magnetic induction device, and realizes the state collection and recognition of the stroke position of the component with a movement stroke.

2. A smart travel position magnetic sensing device for electrical apparatus as claimed in claim 1, wherein The length of the magnetic induction device is equal to the length of the straight line between the starting point and the ending point of the movement stroke of the component with a movement stroke, and the positions of the two ends of the magnetic induction component correspond to the starting point and the ending point of the stroke respectively.

3. A smart travel position magnetic sensing device for electrical apparatus as claimed in claim 1, wherein The component with a movement stroke includes, but is not limited to, the rotating shaft of a knife switch mechanism, a circuit breaker trolley, a valve, a trolley operating pressure plate, and a ground knife operating pressure plate.

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