CN214797281U

CN214797281U - Breaker switch state collector for Internet of things

Info

Publication number: CN214797281U
Application number: CN202121258638.7U
Authority: CN
Inventors: 国秋香; 陈森; 冷勇
Original assignee: Qingdao Chenguo Electric Technology Co ltd
Current assignee: Qingdao Chenguo Electric Technology Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-11-19
Anticipated expiration: 2031-06-07

Abstract

The utility model relates to the technical field of circuit breaker control machinery, in particular to a circuit breaker on-off state collector for the Internet of things, which comprises a device shell, wherein a band-pass filter, a current amplitude key controller, a high-frequency signal generator and a processor which are mutually connected by electric signals are arranged in the device shell; the band-pass filter is provided with a measuring wire which penetrates through the device shell; the measuring wire is divided into two strands and is bridged on the main contacts on the two sides of the circuit breaker. The utility model discloses because of direct cross-over connection on the main contact of circuit breaker, the event range of application does not receive the restriction of circuit breaker producer, specification. The utility model discloses use the on-off state of high frequency signal detection circuit breaker contact, the event function does not receive the influence whether there is electricity of circuit breaker power supply side, can give the signal of correctly reflecting circuit breaker on-off state. The processor has a networking function and can transmit the detected state signal of the breaker switch to a remote place through a cable.

Description

Breaker switch state collector for Internet of things

Technical Field

The utility model relates to a circuit breaker control machine tool technical field specifically is a circuit breaker on-off state collector for thing networking.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.

The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.

Traditional circuit breaker on-off state acquisition device has two kinds: one is to use the auxiliary contact of the breaker, if the auxiliary contact of the breaker is occupied, the auxiliary contact is additionally installed on the breaker. The method has the disadvantage of not being suitable for circuit breakers of all manufacturers and specifications. The other is that a relay is connected in parallel on the load side of the circuit breaker, and the contact of the relay is used for indicating the switching state of the circuit breaker. The disadvantage of this device is that when the power supply side of the circuit breaker fails, the relay always gives an open signal, regardless of the state of the circuit breaker. Meanwhile, the two devices cannot remotely transmit the state signals of the circuit breaker switch in a networking way.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem of present circuit breaker on-off state collection, the utility model provides a circuit breaker on-off state collector for thing networking realizes network transmission circuit breaker on-off state, the wide purpose of installation application range.

The utility model provides a technical scheme as follows: a breaker switch state collector for the Internet of things comprises a device shell, wherein a band-pass filter, a current amplitude keyer, a high-frequency signal generator and a processor which are in electric signal connection with each other are arranged in the device shell; the band-pass filter is provided with a measuring wire which penetrates through the device shell; the measuring wire is divided into two strands and is bridged on the main contacts on the two sides of the circuit breaker.

Furthermore, the outer side of the device shell is provided with an installation bayonet.

Furthermore, the installation bayonet is U-shaped, and the open end is towards the device shell outside.

Further, the installation bayonet socket is including fixed seting up the sliding tray in the device shell outside, sliding connection has two fixture blocks in the sliding tray, the fixture block is the L type, sets up the U type in opposite directions, be equipped with reset spring fixed connection between the fixture block.

Further, the processor is provided with a transmission cable, and the other end of the transmission cable is connected with an external computer.

Further, the device shell material is insulating plastic.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses produce high frequency voltage with high frequency signal generator, get into the circuit breaker contact through current amplitude keyer and band pass filter. When the circuit breaker is switched on (namely in an opening state), the output value of the current amplitude keyer is large; when the breaker is opened (namely in a closed state), the output value of the current amplitude keyer is small. The processor judges whether the breaker is opened or closed according to the output value of the current amplitude keyer and transmits the output value to an external computer through the cable network.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the structure of the installation opening of the present invention;

the device comprises a device shell 1, a band-pass filter 2, a current amplitude keyer 3, a high-frequency signal generator 4, a processor 5, a measuring wire 6, a circuit breaker 7, an installation bayonet 8, a sliding groove 81, a clamping block 82, a return spring 83 and a transmission cable 9.

Detailed Description

For a better understanding of the technical solutions of the present technology, the present technology is described in detail below with reference to the accompanying drawings, and the description of the present technology is only exemplary and explanatory, and should not be construed as limiting the scope of the present technology in any way.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the art are used, and are used only for convenience in describing the technology and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the technology.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present technology, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present technology can be understood in a specific case to those of ordinary skill in the art.

As shown in fig. 1-3, the utility model provides a breaker switch state collector for internet of things, which comprises a device shell 1, wherein a band-pass filter 2, a current amplitude keyer 3, a high-frequency signal generator 4 and a processor 5 which are mutually connected by electric signals are arranged in the device shell 1; the band-pass filter 2 is provided with a measuring wire 6 which penetrates through the device shell 1; the measuring wire 6 is divided into two strands and is bridged on main contacts at two sides of the circuit breaker 7.

As shown in fig. 3, the device housing 1 is provided with a mounting bayonet 8 at the outside. The mounting bayonet 8 is U-shaped, and the open end faces the outer side of the device shell 1. The mounting bayonet 8 comprises a sliding groove 81 which is fixedly formed in the outer side of the device shell 1, two clamping blocks 82 are connected in the sliding groove 81 in a sliding mode, the clamping blocks 82 are L-shaped and are oppositely arranged into a U shape, and a return spring 83 is fixedly connected between the clamping blocks 82.

The processor 5 is provided with a transmission cable 9, and the other end of the transmission cable 9 is connected with an external computer.

The device shell 1 is made of insulating plastic.

The utility model discloses a use method does: a high-frequency voltage is generated by a high-frequency signal generator 4 and enters the contacts of a circuit breaker 7 through a current amplitude keyer 3 and a band-pass filter 2. The frequency value of the high-frequency voltage generated by the high-frequency signal generator 4, the characteristic frequency of the current amplitude keyer 3, the central frequency and the bandwidth of the band-pass filter 2 can be finely adjusted by the processor 5, so that the interference of the load carried by the circuit breaker 7 on the device can be avoided. Meanwhile, the band-pass filter 2 allows only a set high-frequency signal from the measuring wire 6 to pass through the contact of the circuit breaker 7, and does not allow the line-frequency voltage on the power supply side of the circuit breaker 7 to enter the current amplitude keyer 3 of the device. Thus, the current amplitude keyer 3 only responds to the set high-frequency signal and does not respond to the power-frequency signal. When the circuit breaker 7 is switched on, the value output by the current amplitude keyer 3 is large; when the circuit breaker 7 is opened, the output value of the current amplitude keyer 3 is small. The processor 5 judges whether the breaker 7 is opened or closed according to the output value of the current amplitude keyer 3, and transmits the value to a remote place through the cable network. The U-shaped latch 82 provided on the mounting bayonet 8 can slide in the sliding groove 81 to adapt to the size of the mounting position, and the return spring 83 can tighten the two latches 82 to clamp the device at the mounting position.

The utility model discloses because of direct cross-over connection on the main contact of circuit breaker 7, the event range of application does not receive the restriction of 7 producers of circuit breaker, specification. Since the on-off state of the contacts of the circuit breaker 7 is detected by a high-frequency signal, the operation is not affected by whether the power supply side of the circuit breaker 7 is electrified or not, and a signal which correctly reflects the on-off state of the circuit breaker 7 can be provided. The processor 5 has a networking function and can transmit the detected switch state signal of the circuit breaker 7 to a remote place through a cable.

It should be noted that there are no specific structures in the above description, and it will be apparent to those skilled in the art that various modifications, decorations, or changes can be made without departing from the technical principles of the present invention; such modifications, variations, or combinations, or applying the concepts and solutions of the technology directly to other applications without further modifications, are intended to be within the scope of the present technology.

Claims

1. A breaker switch state collector for the Internet of things is characterized by comprising a device shell, wherein a band-pass filter, a current amplitude keyer, a high-frequency signal generator and a processor which are in electric signal connection with each other are arranged in the device shell; the band-pass filter is provided with a measuring wire which penetrates through the device shell; the measuring wire is divided into two strands and is bridged on the main contacts on the two sides of the circuit breaker.

2. The breaker switch state collector for the internet of things of claim 1, wherein: and an installation bayonet is arranged on the outer side of the device shell.

3. The breaker switch state collector for the internet of things of claim 2, wherein: the installation bayonet is U-shaped, and the open end is towards the device shell outside.

4. The breaker switch state collector for the internet of things of claim 3, wherein: the installation bayonet socket is including fixed seting up the sliding tray in the device shell outside, sliding connection has two fixture blocks in the sliding tray, the fixture block is the L type, sets up to the U type in opposite directions, be equipped with reset spring fixed connection between the fixture block.

5. The breaker switch state collector for the internet of things of claim 1, wherein: the processor is provided with a transmission cable, and the other end of the transmission cable is connected with an external computer.

6. The breaker switch state collector for the internet of things of claim 1, wherein: the device shell is made of insulating plastic.