JP3016474U - Power cut-off device with seismic shock absorber - Google Patents

Abstract

(57) [Summary] [Purpose] This is a proposal regarding a power cutoff device with a seismic shock absorber that activates an earth leakage breaker when an earthquake occurs. [Structure] A ground terminal 3 is provided in a case 2, a seismic shock absorber 4 is provided inside the case, the earth terminal 3 and the seismic shock absorber 4 are electrically connected, and a neon lamp 7 is arranged in parallel with the seismic shock absorber 4. , The fuse 9 is inserted into this, one of the AC cords 1 is connected, and the other is blinded and fixed in the case 2,
A power cutoff device with a seismic shock absorber, characterized in that an AC plug is provided at the tip of the AC cord.

Description

[Detailed description of the device]

[0001]

[Industrial application] The power cutoff device with a seismic shock absorber according to the present invention is designed to activate the earth leakage breaker by short-circuiting one of the power supply currents to the ground by a seismic shock absorber that operates when an earthquake occurs. This is a proposal for a power cutoff device with a seismic shock absorber.

The earth leakage breaker provided on the distribution board is designed to shut off the power supply when an abnormal state occurs in which the power supply current is short-circuited for some reason. The seismic shock absorber connected to one of the AC cords that is connected to the AC cord short-circuits the current flowing in one of the AC cords to the ground, and uses this current to operate the earth leakage breaker. .

[0003]

2. Description of the Related Art The conventional technique is the device disclosed in Japanese Utility Model Publication No. 55-77344, which is called "breaker", and the actual one, which is called "earthquake-breaking circuit breaker for seismic shock". No. 6152 (Kokai Jitsukoku Sho 63-41734, Registration No. 1774788), the invention described in Japanese Utility Model Laid-Open No. Sho 58-3 52260, which is named "Earthquake breaker also used as earth leakage breaker" was there.

[0004]

[Problems to be Solved by the Invention] In the present invention, when an earthquake is encountered, there is a risk of ignition due to an electric leakage, and the seismic shock absorber detects the occurrence of an earthquake as an earth leakage that flows to the ground, and is equipped with a leakage breaker. This is to prevent the fire from occurring by shutting off the power supply current of the electric panel.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] In a power cutoff device with a seismic shock absorber according to the present invention, a grounding terminal is provided at the center of the plane of the case body, and a seismic shock absorber is provided inside the case. Electrically connect the container. Install a neon lamp connected in parallel to the seismic sensor, insert a fuse in the seismic sensor, connect one of the AC cords, and then blind the other end of the AC cord and fix it in the case. To do. An AC plug is provided at the tip of the AC cord.

The case is screwed and fixed to a pillar of a house or the like, and the plug is inserted into the socket so that the lighting of the neon lamp can be confirmed. When an earthquake with a seismic intensity of about 4 or more occurs, the seismic shock absorber is activated to short-circuit one of the power supply currents flowing in the AC cord to ground.

[0007]

The function of the present invention is to short-circuit to the ground due to the operation of the seismoscope, which causes the power supply current to leak to the ground and the earth leakage breaker provided on the distribution board to operate. The power will be cut off. When the plug is connected to the AC outlet, the neon lamp lights up, indicating that the plug is properly connected. Since the earth is connected to the earth terminal, if an earthquake occurs, the seismic shock absorber will be short-circuited to the earth. Therefore, the current flowing through one of the AC cords leaks through the ground terminal. Although the current leaking to the earth due to the operation of this seismic sensor has a small current capacity, it is possible to shut off the power by operating the earth leakage breaker provided on the distribution board of the power supply. In the unlikely event that the earth leakage breaker fails and the circuit cannot be cut off, an excessive current will flow and the fuse will blow.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The attached drawings show an embodiment of a power cutoff device with a seismoscope according to the present invention. FIG. 1 is a circuit diagram of a power interruption device with a seismic shock absorber, FIG. 2 is a partially cutaway view showing the internal structure of the device, FIG. 3 is a plan view showing the plane of the device, and FIG. The circuit diagram in which the miniature bulb is installed on the plus side of the seismic sensor is shown. Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1 The case 2 is provided with a case main body which is covered with a mounting portion 6 on the bottom and is covered with the mounting portion 6, and is mounted on a pillar or the like near an outlet of a house. It is designed to be attached in. On the flat surface of the main body, an earth terminal 3 protruding outward is provided. The seismic shock absorber 4 is provided inside the case body, and the ground terminal 3 and the seismic shock absorber 4 are electrically connected. A neon lamp 7 connected in parallel to the seismic sensor 4 is provided, a fuse 9 is inserted, one of the AC cords 1 is connected to this, and the other 5 of the AC cord is blinded to form the case. Fix inside. An AC plug is provided at the tip of the AC cord 1.

Example 2 Since Example 1 has a circuit in which the miniature electric bulb 8 for controlling the current is not connected, Example 2 is placed on the plus side of the seismoscope 4 in Example 1. This is one of the embodiments in which the miniature electric bulb 8 is connected, and the miniature electric bulb for controlling an excessive current is connected in the power-supply cutoff device with a vibration sensor described in the first embodiment. The miniature light bulb 8 is for the purpose of preventing an excessive current from flowing to the ground due to a breakdown of the earth leakage breaker.

To explain the operation of the invention in the first and second embodiments of the present invention, the case 2 is attached near the outlet, the plug of the AC cord 1 is inserted into the outlet and the neon lamp 7 is turned on. One of the conductors is connected to the grounding terminal 3 on the plane of the case, and its tip is grounded. If the seismic shock absorber 4 is activated by an earthquake with a seismic intensity of 4 or more, the power supply current leaks from the ground terminal 3 to the ground, causing the earth leakage breaker to drop and shutting off the power. The fuse 9 is blown when the ground current flows excessively due to a failure of the earth leakage breaker. In the second embodiment, the miniature electric bulb 8 is turned on in order to reduce the excessive current.

[0012]

[Effects of the Invention] The power cutoff device with a seismic shock absorber according to the present invention can be easily installed on a pillar of a house, etc., and when an earthquake occurs, the power supply current can be changed by the seismic shock absorber installed inside the case. By using one of them as the earth current to leak the current, the earth leakage breaker can be activated with a slight earth current to prevent fire from occurring due to the leak.

[Brief description of drawings]

[Fig.1] Circuit diagram of power cutoff device with seismic shock absorber

FIG. 2 is a partially cutaway view showing the internal structure of the device.

FIG. 3 is a schematic view showing a plane of the device.

[Figure 4] Circuit diagram with a miniature bulb on the positive side of the seismic sensor

[Explanation of symbols]

 1. ． ． AC code 2. ． ． Case 3. ． ． Ground terminal 4. ． ． Sensitive device 5. ． ． Blinds 6. ． ． Attachment part 7. ． ． Neon lamp 8. ． ． Miniature bulb 9. ． ． fuse

Claims (2)

[Scope of utility model registration request] 1. A ground terminal 3 is provided in a case 2, a seismic shock absorber 4 is provided inside the case, and the earth terminal 3 and the seismic shock absorber 4 are electrically connected and provided in parallel with the seismic shock absorber 4. The neon lamp 7 is connected, and one of the AC cords 1 is connected to the seismic sensor 4, and the other one is blinded and fixed in the case 2. By the operation of the seismic sensor 4, the AC cord 1 is connected. A power cut-off device with a seismic shock absorber, characterized in that one of the power supply currents flowing through is short-circuited to ground. 2. A case 2 is provided with a grounding terminal 3, a seismic absorber 4 is provided inside the case, the earthing terminal 3 and the seismic sensitive device 4 are electrically connected, and the seismic sensitive device 4 is provided in parallel. The neon lamp 7 is connected, the miniature bulb 8 provided in series is connected to the neon lamp 7, and one of the AC cords 1 is connected to the seismic shock absorber 4 via the miniature bulb 8 and the other is blinded. A power cut-off device with a vibration sensor, which is fixed in the case 2, and one of the power supply currents flowing in the AC cord 1 is short-circuited to the ground by the operation of the vibration sensor 4.