KR20130047948A - Alarm apparatus for detecting contact of handle and electric current supply state for power board - Google Patents

Abstract

PURPOSE: A contact alarm device of a door handle of a distribution panel is provided to increase safety, to simplify a structure by generating a warning sound in case of internal conduction by detecting contact of a door handle of a distribution panel with a contactless method. CONSTITUTION: A contact alarm device of a door handle of a distribution panel consists of a handle contact detection unit(145) installed to detect contact of human body with a handle of a door in a contactless method, a conduction detection unit(152) detecting current through a wire inside of a distribution panel, an alarm control unit(148) generating a warning sound if detecting a human body contact detection signal and a conduction signal, a wireless transmission unit(149) transmits human body contact generation information to a registered communication address, a speaker(146) and a display unit(147). [Reference numerals] (145) Handle contact detection unit; (146) Speaker; (147) Display unit; (148) Alarm control unit; (149) Wireless transmission unit; (152) Conduction detection unit; (160) Communication network; (170) Management server

Description

Alarm apparatus for detecting contact of handle and electric current supply state for power board}

The present invention relates to an internal conduction state notification device when contacting the door handle of the switchgear, in detail, the contact of the door handle of the switchgear to be able to output an alarm sound when the inside of the state is energized by detecting the door handle of the switchgear non-contact. It relates to the internal electricity state notification device of the city.

The switchboard is equipment installed in facilities such as power plants, substations, and large buildings equipped with electric facilities, and is capable of controlling opening and closing of converters and controlling equipment. In general, a switchboard is a device in which a main wiring breaker, a wiring breaker, an earth leakage breaker, a relay, and the like are installed in a panel, and each of these breakers and relays is electrically connected. The switchboard distributes power supplied from the outside to a plurality of connected loads and has a function of opening and closing the power supply. At the same time, the switchboard is equipped with an alarm device for receiving an error signal of each load and alarming it. The alarm device is a device for detecting an abnormal voltage, an abnormal current and an electric leakage of each load and alarming it as a lamp lamp. LED display that lights up or speaker that emits an alarm sound.

Since the high voltage or high current flows in such a switchboard, it is preferable that the switchboard is installed in an area where outsiders are restricted from entering.

On the other hand, as a way to prevent the safety accident by monitoring the access of such a switchboard, in the case of detecting the approach to the switchboard, the scope of monitoring is unnecessarily widened, the structure for the monitoring facility is complicated, the switchboard is in the working environment If installed, even if the operator is in close proximity without contact with the switchboard may cause a problem that unnecessary alarm signal is generated.

In addition, in the case of determining whether access is made regardless of the state of electricity inside the switchboard, when the power supply inside the switchboard is interrupted for facility maintenance, the controller detects the approach and outputs an alarm signal. There is a problem that can cause confusion in identifying the cognitive dysfunction.

The present invention has been devised to improve the above problems, the contact of the door opening and closing handle of the switchboard by non-contact detection and the inside of the door handle of the switchboard that can generate an alarm signal only when the inside is energized state The purpose is to provide a state of electricity notification device.

In order to achieve the above object, when the door handle contact of the switchboard according to the present invention, the internal conduction state notification device and the handle contact detection unit is installed to detect the contact of the human body on the handle of the door that can open and close the inside of the switchboard; ; An alarm output unit which outputs an alarm signal; An energization detecting unit detecting whether a current flows through a conductive wire in the switchboard; And a human body contact detection signal received from the handle touch sensor, and an alarm controller configured to output alarm information through the alarm output unit when an electric current signal corresponding to the electric state is received from the electric current detector.

Preferably, the handle contact detection unit and a permanent magnet mounted to the handle; And a first hall sensor which detects a change in magnetic force from the permanent magnet by a grip of the handle and outputs the change in the human body to the alarm control unit.

In addition, when the human body contact detection signal is received from the first hall sensor, the alarm control unit preferably transmits the human body contact generation information to a set communication address through a wireless transmitter.

The alarm output unit is controlled by the alarm control unit and outputs an alarm sound; And a display unit controlled to display the alarm information by controlling the alarm control unit, wherein the energization detecting unit applies a second hall sensor for detecting a change in an electromagnetic field generated when a current flows through a conductive line in the switchboard.

In addition, the switchboard may be provided with a plurality of doors, and the display unit of the alarm output unit may be constructed to output alarm information of different colors for each door.

According to the internal conduction state notification device when the door handle contact of the switchboard according to the present invention, the contact of the handle of the switchboard door by the non-contact detection and outputs an alarm signal so that it can be recognized if the inside is energized state of safety. While improving, the structure offers simple advantages.

1 is a perspective view schematically showing a switchboard to which a door handle contact notification device according to the present invention is applied;
Figure 2 is a perspective view showing a part of the handle portion of the door of Figure 1,
3 is a block diagram of an operating element of the door handle contact notification device of FIG.
4 is a cross-sectional view illustrating an example of a state in which a second hall sensor is installed in the switchboard of FIG. 1.

Hereinafter, the door handle contact notification device of the switchboard according to an embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 is a perspective view schematically showing a switchboard to which the door handle contact notification device according to the present invention is applied, FIG. 2 is a perspective view showing a part of a handle part of the door of FIG. 1, and FIG. 3 is a door handle of FIG. 1. A block diagram of the operating elements of a contact notification device.

1 to 3, the door handle contact notification device 100 of the switchboard according to the present invention includes a handle touch sensor 145, an alarm controller 148, a speaker 146, a display 147, and a wireless transmitter. 149 and the energization detecting unit 152 are provided.

The handle contact detecting unit 145 is installed on the handle 122 of the door 120 that can open and close the inside of the switchboard 110 so as to detect whether or not the human body is in contact by hand.

The handle contact detecting unit 145 is installed on the permanent magnet 141 installed on the inner surface of the handle 122 provided to be exposed to the outside of the door 120 and the terminal body 143 installed inside the door 120 to handle the handle ( The first hall sensor 144 detects a change in the magnetic force from the permanent magnet 41 by the grip of 122 and outputs it to the alarm control unit 148.

The handle contact detecting unit 145 may have a change in magnetic force detected when the user grips the handle 122 as compared with the case where there is no interference between the handle 122 of the door 120 and the first hall sensor 144. The presence or absence of contact with the handle 122 of the human body can be detected.

On the other hand, if the locking structure so that the door 120 can be opened with respect to the switchboard 110 only when the handle 122 is rotated, it can be constructed to determine the human body contact when the handle 122 is rotated more than a predetermined angle, In this case, the magnetic force value detected when the human body contact determination reference level signal is rotated by a predetermined angle or more in the state in which the first contact sensor 144 itself or the alarm control unit 148 to be described later is gripped by the handle 122 is used as a reference value. If it is set, and it receives a magnetic force signal below a comparative reference value, it may be constructed so that it may determine with human body contact.

The neck output unit is controlled by the alarm controller 148 to be described later to output an alarm signal.

The alarm output unit includes a speaker 146 and a display unit 147.

The speaker 146 is controlled by the alarm controller 148 to output an alarm sound and may be installed in the terminal body 143.

The display unit 147 is controlled by the alarm controller 148 to display alarm information. In the illustrated example, an LED light emitting lamp 147a mounted to the door 120 to be exposed to the outside is applied.

In this case, the LED light emitting lamp 147a may be constructed to emit red light as alarm information.

On the other hand, as shown in the case where a plurality of doors 120 are provided in one switchboard 110, the display unit 147 of the alarm output unit is mutually alarm information for the LED light emitting lamps 147a provided for each door 120, respectively. It can be constructed to output light of a different color.

As illustrated in FIG. 4, the energization detecting unit 152 detects whether a current flows through the conducting wire 112 inside the switchboard 110 and outputs it to the alarm control unit 148.

The conduction detecting unit 152 preferably applies a non-contact second hall sensor capable of detecting whether the current is conducted in response to an electromagnetic force generated when current flows in the conductive wire 112.

Here, when the current supply region is separated by each door 120, the second hall sensor may be installed to detect current flowing in the conductive line corresponding to the current supply region partitioned by each door.

When the human body contact detection signal is received from the handle contact detector 145, the alarm controller 148 determines whether the device is in the energized state or the disconnected state from the signal output from the second hall sensor applied to the energization detecting unit 152. When it is determined that the energization signal corresponding to the state, the alarm information is processed through the alarm output unit. That is, the alarm control unit 148 receives a human body contact detection signal from the handle contact detection unit 145, and when the power supply signal is received from the current detection unit 152, outputs an alarm sound through the speaker 146, and displays the display unit ( The LED luminescent lamp 147a of 147 is driven to emit light of a color corresponding to the alarm information.

The radio transmitter 149 is controlled by the alarm controller 148 to transmit the human body contact generation information as a radio signal to a registered communication address.

That is, when the human body contact detection signal is received from the first hall sensor 144, the alarm controller 148 processes the human body contact generation information to be transmitted to the communication address set together with its own address through the wireless transmitter 149. .

Here, the alarm controller 148 transmits or registers human body contact generation information to a communication address of a wireless communication terminal 180 such as a mobile phone or a smartphone of an administrator registered through the communication network 160 through the wireless transmitter 149. It can be constructed to send the human body contact generation information to the Internet communication address of the management server 170.

Alternatively, the alarm control unit 148 receives the human body contact detection signal from the first hall sensor 144 and the human body contact generation information through the wireless transmitter 149 when the energization signal is received from the electric current detection unit 152. It can be constructed to process to transmit to the communication address set with its own unique address.

According to the internal conduction state notification device 100 when the door handle contact of the switchboard 110, the handle before the opening and closing of the door 120 without applying electricity through the door 120, the presence or absence of the contact of the door 120 It can be determined through the presence or absence of the contact (122), and if the interior is energized to the user who grabbed the handle 122 of the door 120, the primary warning for electric shock can be raised to increase safety, the manager This can be informed wirelessly, providing the benefit of improved safety management.

141: permanent magnet 144: first hall sensor
145: handle contact detection unit 148: alarm control unit
149: wireless transmitter 152: energization detector

Claims (5)

A handle contact detector installed to detect whether a human contact is made in a non-contact manner on a handle of a door that can open and close the inside of a switchboard;
An alarm output unit which outputs an alarm signal;
An energization detecting unit detecting whether a current flows through a conductive wire in the switchboard;
And an alarm controller configured to process alarm information to be output through the alarm output unit when a human body contact detection signal is received from the handle contact detector and an electricity supply signal corresponding to an energized state is received from the electricity detection unit. Internal electricity state notification device when the door handle of the switchboard. The method of claim 1, wherein the handle contact detecting unit
A permanent magnet mounted to the handle;
And a first hall sensor which detects a change in magnetic force from the permanent magnet by the grip of the handle and outputs it to the alarm control unit of the human body. According to claim 2, When the alarm control unit receives a human body contact detection signal from the first Hall sensor, when the door handle contact of the switchboard, characterized in that to transmit the human body contact generation information to the set communication address via a wireless transmitter. Internal energization alarm. According to claim 3, wherein the alarm output unit
A speaker controlled by the alarm control unit to output an alarm sound;
And a display unit which is controlled by the alarm control unit to display alarm information.
The electricity conduction detection unit is an internal conduction state notification device when the door handle contact of the switchgear, characterized in that the second Hall sensor for detecting a change in the electromagnetic field generated when the current flows through the conductive wires inside the switchboard. According to claim 4, wherein the switchboard is provided with a plurality of doors, the display unit of the alarm output unit when the door handle contact of the switchboard, characterized in that to output the alarm information of different colors for each door Device.

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