KR20140055884A - Detector for cutting cable of distributer - Google Patents

Detector for cutting cable of distributer Download PDF

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Publication number
KR20140055884A
KR20140055884A KR1020120123521A KR20120123521A KR20140055884A KR 20140055884 A KR20140055884 A KR 20140055884A KR 1020120123521 A KR1020120123521 A KR 1020120123521A KR 20120123521 A KR20120123521 A KR 20120123521A KR 20140055884 A KR20140055884 A KR 20140055884A
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KR
South Korea
Prior art keywords
cable
power
alarm
distribution board
warning
Prior art date
Application number
KR1020120123521A
Other languages
Korean (ko)
Inventor
김경수
임은택
김선근
Original Assignee
(주)대우건설
주식회사 청운종합전기
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)대우건설, 주식회사 청운종합전기 filed Critical (주)대우건설
Priority to KR1020120123521A priority Critical patent/KR20140055884A/en
Publication of KR20140055884A publication Critical patent/KR20140055884A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Distribution Board (AREA)

Abstract

The present invention relates to an apparatus for preventing a cable of a distribution board from being cut, which comprises a power off sensor (A) and an additional apparatus (B). In the power off sensor, a direct current electricity supplied by a direct current converter circuit (2) from a comprised circuit brake (1) is charged to a charging battery (4) automatically according to a charging signal of a charging sensing circuit (3). A circuit brake operation relay (5) operated by electricity of the charging battery is combined to a door open sensing sensor (S). The additional apparatus comprises a conventional warning generator (SP) and a warning light bar (LP) and a timer (T) which sets a warning time zone at random. By the present invention, in case the distribution board does not work, a warning operation time zone is set by the timer. If a door of the distribution board is open or a cable is cut, a warning operation signal is transmitted by the sensing of the door open sensing sensor and the circuit brake operation relay. And a warning tool of the additional apparatus is warned so that the cable is prevented from being cut and stolen, and intentional damage of a warning apparatus comprised in the distribution board is prevented. Thus, stability of the distribution board is further improved.

Description

{DETECTOR FOR CUTTING CABLE OF DISTRIBUTER}

More particularly, the present invention relates to a device for detecting cable breakage in a distribution board, and more particularly, to a cable break detection apparatus for a distribution board, in which when a door opening of a distribution board is opened or a cable is broken during non- It is possible to prevent theft and protect the alarm mechanism provided in the distribution board.

In the construction site, a panel board is installed to use various electric devices, and power is supplied to the electric tools through a cable connected to the terminal block of the panel board, and it is desirable to remove the cables from the panel board and store them safely In order to avoid the inconvenience of reconnecting the cable at the next day's work, the door of the distribution panel is locked by the locking device while the cable is connected to the distribution panel.

In recent years, cables are very expensive, causing frequent thefts of cables, resulting in material loss and a problem in that power supply is interrupted and the power unit is stopped during operation, leading to a major accident .

Therefore, a cable breaking detection means of the distribution board is required.

In general, various detection means are used for theft prevention. Examples of the prior art of the detection means are as follows.

(1) As a detection means for the boundary of a fence that surrounds a boundary loop detector of a registration utility model registration No. 20-0207147 (Dec. 15, 2000), such as a house or a warehouse, a shaft pin is provided inside the detector body, The wire rope is connected to the lower end of the wire rope, and the lower end of the wire rope is fixed to the mounting bracket. When the wire rope of the fence is pulled by the operation hole, the wire rope operates the operation portion. The alarm means alerts the abnormal state of the fence by the signal.

② The fence vibration sensor of Registration No. 10-0628500 (2006.09.26 announcement) is to detect the vibration when it crosses the fence installed for the fence. The cable sensor has the capacitance A vibration sensor cable is formed so that a clearance is formed so as to recognize a change of the cable, and the cable is installed on the fence so that the vibration of the fence is detected by a cable to be alerted.

(3) The ultrasonic detector of Registration No. 10-0806955 (published on Feb. 25, 2008) is composed of a transmitting part for emitting an ultrasonic wave emitted by an electric power source of battery and a receiving part for receiving ultrasonic wave reflected from an obstacle When the intruder intrudes into the house, the ultrasound waves reflected from the body of the intruder are amplified and the received ultrasonic wave is amplified. Then, the intrusion site time and distance are determined and transmitted to the terminal device by the transmitter.

Prior art of the above-mentioned sensing means has been described with respect to sensing means for sensing the vibration of a fence or the presence of an intruder, but the sensing means for detecting the breakage of the cable of the distribution board is not disclosed.

Generally, there is almost no fear of cutting the cable of the distribution board during the operation using various electric tools or electric devices by the cable connected to the distribution board. However, there has been a problem that frequent breakage of the cable connected to the distribution board occurs frequently during nighttime hours.

The present invention has developed a cable breaking detection device for a distribution board that detects and alerts when a distribution panel door is opened or a cable of a distribution panel is cut for each distribution panel to correct the above problem.

An object of the present invention is to provide an overcurrent protection apparatus and method that can prevent the overcurrent from being overcharged by a DC power source, And a cable cutting detection device of a distribution board, which is constructed by being combined with a timer and an alarm mechanism addition device for arbitrarily setting a time zone in which a distribution board is not used, that is, an alarm operation time zone.

Another object of the present invention is to provide a device for detecting a cable break in a distribution panel in which an alarm operation signal is transmitted from a power supply cutoff relay by a door open of a distribution board and a cable cutoff detection signal only at an alarm time set by a timer.

It is still another object of the present invention to provide a cable breaking detection device for a distribution board in which the sensing device is operated by a power source of a battery charged by a power source of a distribution board to improve the safety of the cable breaking detection device of the distribution board.

In order to achieve the above-mentioned object, a cable cutoff detection apparatus for a distribution board provided for each distribution panel is composed of a power cutoff detector and a conventional alarm detector.

The power cutoff detector is originally provided in the distribution board and includes a circuit breaker of an AC power source and a charging circuit connected to the overcurrent protection device and having a DC conversion circuit for converting the AC power to a DC power and a charging notification A charging battery provided with a sensing circuit, a power supply cutoff relay for sensing a cable cutoff operated by the power supply of the rechargeable battery, and a door opening sensor for sensing opening of the distribution panel door.

The additional device comprises an alarm sound generator for audibly alarming and a warning light for visually alarming, which are normally alarm devices, and the additional device is connected to the power supply interruption relay through a timer for setting an alarm operation time zone.

The above-described components of the present invention are generally used in the electric field, and the gist of the present invention is characterized in that these devices are organically coupled so as to sense a cable break and alert them.

The cable cut-off preventing device of the present invention is used by installing power for each distribution panel. In the time of working with the power supply through the cable connected to the distribution board, since the alarm operation of the alarm mechanism is canceled by setting of the timer, it is necessary to connect the cable for new work to the terminal block of the distribution panel from time to time, Even if the door of the distribution panel is frequently opened or closed due to factors such as disconnection of the cable, there is no alarm of the alarm mechanism even when the door open detection signal is transmitted from the door open detection sensor to the power shutoff operation relay. In this situation, since many people are working near the distribution board, there is almost no possibility that the cable connected to the actual distribution panel will be accidentally stolen even if the alarm mechanism does not work.

After the work is finished, the alarm operation time zone is set by the timer. The cable connected to the distribution board is not removed and left for the next day's work, so there is a risk of being stolen at this time. Therefore, it is necessary to set the operating time in the timer so that the alarm mechanism is activated during non-working hours, which may be theft.

When the door of the distribution panel is opened unauthorized at the time set by the timer, the detection signal is transmitted to the power-off operation relay by the detection of the door open detection sensor. Unintentional opening of the door of the distribution panel is deemed to prevent the alarm mechanism provided in the distribution panel from being damaged, thereby preventing the alarm from sounding when the cable is cut. Therefore, when the door of the distribution panel is opened, an alarm is provided.

Also, even if the cable is disconnected from the outside of the distribution board, the cable disconnection is detected by the power cutoff relay. When the door open detection signal of the panel door or the cut signal of the cable is detected, the alarm operation signal is outputted from the power-off operation relay and the outputted alarm operation signal is transmitted to the alarm sound generator and the warning light Audible alarm or visual alarm.

Therefore, a nearby security guard will be dispatched to open the door of the distribution panel to prevent deliberate destruction of the alarm means, thereby preventing theft of the expensive cable.

In the present invention, since the power-off operation relay is operated by the power source of the rechargeable battery, the sensing function is maintained even when the power of the distribution panel is shut off. In addition, the rechargeable battery is automatically charged by the DC power supplied from the overcurrent protection circuit through the DC conversion circuit in accordance with the detection signal of the charge detection circuit.

When the charged battery drops below the constant voltage, the charging notification lamp flashes to indicate the charging status.

The present invention relates to a power supply for detecting a cut-off of a cable which is charged to a rechargeable battery according to a detection signal of a charge detection circuit having a charge notification or the like by a DC conversion circuit from an overcurrent prevention device provided in a distribution board, If the cable is disconnected or the door of the distribution panel is opened by the shutoff relay and the door open sensor, it is configured to alarm at the alarm operation time set by the timer. Therefore, the expensive cable is prevented from being intentionally damaged and the alarm means is prevented from being damaged. Can be used more safely.

1 is a schematic block diagram of a distribution board cable cutting detection apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the cable cutting detection device DM of the distribution panel is composed of a power cutoff detector A and an additional device B of a conventional alarm device.

In the power cutoff detector A, a DC converter 2 for converting an AC power source to a DC power source is connected to an output terminal side of an overcurrent protection circuit (circuit brake) 1 originally provided in the distribution board, A rechargeable battery 4 of a DC power supply provided with a charge sensing circuit 3 having a notification lamp 3a is connected to the output side of the DC conversion circuit 2, A door open detection sensor S for detecting whether or not the distribution panel door is opened is connected to the power cutoff operation relay 5 for detecting whether the power cutoff operation relay 5 is connected to the input terminal, When the detection signal is inputted, the power-off operation relay 5 is configured to send the alarm operation signal to the alarm device having the additional storage medium (B).

The additional device B includes a warning sound generator SP for audibly informing an alarm and a warning light LP for visually informing an alarm as a normal alarm mechanism through the time setting timer T, As shown in Fig.

The cable cutting detection device (DM) of the present invention is installed and used for each distribution panel. A cable connected to the terminal block of the distribution panel is divided into a time zone for working with the distribution panel power source and a non- The alarm operation time zone is arbitrarily set by the timer T so that the alarm operation signal of the alarm device 5 can be transmitted to the alarm device of the additional device B side.

The door is frequently opened and closed to disconnect the cable or disconnect the cable for a new operation to the terminal block of the distribution board at any time in the time zone during which the alarm operation is canceled by the timer T, Even if the detection signal of the door opening sensor S is transmitted to the power supply cutoff operation relay 5 and the alarm operation signal is transmitted from the power supply cutoff operation relay 5, the alarm mechanism of the additional device B is not operated, none. In this situation, since many people are working near the distribution board, the cable connected to the distribution board is unlikely to be accidentally stolen.

An alarm time zone is set by a timer (T) so that the operation is finished at the construction site and the alarm device (B) of the cable cutting prevention device (DM) is operated at the non-working time.

Therefore, if the cable connected to the distribution panel is not demolished for the next day, it can be activated by operating the cable disconnection detection device (DM) provided in the distribution panel.

When the doors of the distribution panel are unfrozenly opened in the alarm time zone set by the timer T, the detection signal is transmitted to the power-off operation relay 5 by the detection of the door opening detection sensor S. Also, Is detected by the power-off operation relay (5). In response to the input of the detection signal, the alarm operation signal is transmitted from the power-off operation relay 5 and is transmitted to the alarm sound generator SP or the warning light LP of the additional device B via the timer T, Alarms or visual alarms.

According to the alarm, a nearby security guard will be dispatched, thereby preventing intentional damage to the simultaneous alarm mechanism that prevents theft of the cable.

The rechargeable battery 4 that supplies power to the power-off operation relay 5 is supplied with the DC power supplied from the overcurrent prevention device 1 through the DC conversion circuit 2 in accordance with the charging signal of the charging detection circuit 3 So that the rechargeable battery 4 is automatically charged.

Therefore, even when the power of the distribution panel is cut off, the power supply of the rechargeable battery 4 can operate the cable cutoff detection device of the distribution board of the present invention, so that the distribution board can be used more safely than the conventional distribution board.

1: Overcurrent prevention device 2: DC conversion circuit 3: Charge detection circuit
3r: Charge notification light 4: Rechargeable battery 5: Power off relay
A: Power off detector B: Additional device S: Door open sensor
T: Time setting timer SP: Alarm sound generator
LP: Warning light DM: Cable cutting prevention device of distribution board

Claims (2)

(2) for converting an AC power supplied from the overcurrent protection device (1) into a DC power and a charge detection circuit (3) having a charge notification light (3r) are provided A power cut-off operation relay 5 for detecting whether or not the cable is disconnected by the power of the rechargeable battery, and a power cutoff operation relay 5 (A) connected to the door open detection sensor (S) for transmitting the door open detection signal of the door of the distribution panel to the door open detection sensor
(B) combined with a normal alarm sound generator (SP), a warning light (LP) and a timer (T) for arbitrarily setting an alarm time zone
And an alarm is generated in response to an alarm operation signal transmitted from the power-off operation relay. The method according to claim 1,
The power cutoff operation relay 5 of the power cutoff detector A sends an alarm operation signal when a cable cutoff detection signal or a door open detection signal is inputted and the power cutoff operation relay 5 of the power cutoff detector A Wherein the alarm is generated by an alarm sound generator (SP) and a warning light (LP).
KR1020120123521A 2012-11-01 2012-11-01 Detector for cutting cable of distributer KR20140055884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120123521A KR20140055884A (en) 2012-11-01 2012-11-01 Detector for cutting cable of distributer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120123521A KR20140055884A (en) 2012-11-01 2012-11-01 Detector for cutting cable of distributer

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Publication Number Publication Date
KR20140055884A true KR20140055884A (en) 2014-05-09

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Application Number Title Priority Date Filing Date
KR1020120123521A KR20140055884A (en) 2012-11-01 2012-11-01 Detector for cutting cable of distributer

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101489767B1 (en) * 2014-07-01 2015-02-06 (주)대우건설 Apparatus for preventing theft of temporary cable
KR102029704B1 (en) * 2018-09-20 2019-10-08 주식회사 아이언에스 Terminal device of emergency situation sensing system
KR20200005238A (en) * 2018-07-06 2020-01-15 엘에스전선 주식회사 Sensor and device for preventing theft of cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101489767B1 (en) * 2014-07-01 2015-02-06 (주)대우건설 Apparatus for preventing theft of temporary cable
KR20200005238A (en) * 2018-07-06 2020-01-15 엘에스전선 주식회사 Sensor and device for preventing theft of cable
KR102029704B1 (en) * 2018-09-20 2019-10-08 주식회사 아이언에스 Terminal device of emergency situation sensing system

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