JPH0894678A - Fire sensor for house - Google Patents

Abstract

PURPOSE: To eliminate the necessity for installation of a special interior wiring to set a fire sensor in a house by using an AC 100V power source line directly. CONSTITUTION: A sensor main body K is constituted of a sensor part D comprising a power source circuit part A, a fire detection circuit part B and an alarm circuit part C, an ON/OFF circuit part E and a relay circuit part F inside. A hook rosette R having input terminals (a), (a) of a 100V power source is set above the main body K and, moreover a hook rosette P having output terminals (b), (b) necessary to take electricity for an illumination device H is set below the main body K. A transformer is used for a power source conversion circuit, part N of a wall switch part M. When the power source is turned OFF, the transformer lowers the voltage to an extent where the operation of the sensor part D is ensured. The ON/OFF judgment circuit, part E monitors the voltage, and decreases the voltage to secure the operation of the sensor part D, and the electricity is thus supplied to the illumination device H.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention uses an existing AC 100V line of a home lighting fixture as a power source as it is, so that no special indoor power wiring work is required to install a fire detector in a house. Residential fire detectors.

[0002]

2. Description of the Related Art In the indoor wiring of a residential lighting fixture, circuit wiring is generally used to turn on / off a 100V power source of the residential lighting fixture by a switch installed on a wall.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention For a residential lighting fixture installed on a ceiling, for example, a set of a hook rosette having a male terminal rod and a hook rosette having a female terminal rod is used. The existing hook ceiling rosettes that are constructed are known. When 100V power is supplied to the residential fire detector from this existing hook ceiling rosette, even if the switch installed on the wall is turned on / off, the house fire detector will be turned on when the switch is off. Has a drawback that it cannot be constantly monitored for fire occurrence because its operating power is not supplied.

An existing outlet installed on a wall is usually installed at a low position in a residential room, and a residential fire detector is usually installed at a high position such as a ceiling surface. When taking a 100V power supply for a residential fire detector from such an existing outlet, a considerably long circuit wiring is required from the existing location of the outlet to the installation place of the residential fire detector. There is also.

In view of the above problems, the present invention requires a special indoor power supply wiring work to install a fire detector in a house by directly using the AC 100V line of a home lighting fixture as a power source. The purpose is to provide a residential fire detector.

[0006]

To achieve the above object, a residential fire detector according to the present invention has a power supply circuit section A, a fire detection circuit section B for heat and smoke, an alarm circuit section C, and the like.
A sensor body K including a sensor section D, an on / off determination circuit section E, and a relay circuit section F, which is composed of a sensor section D, and a 100 V power supply input terminal a, a are provided above the sensor body K. A hanging rosette R is attached, and a hanging rosette P having output terminals b and b for taking the power of the lighting fixture H is attached to the lower portion, and the power conversion circuit unit N uses a transformer. , The voltage is lowered to a voltage at which the operation of the sensor unit D can be ensured when the power source S is turned off, and the voltage is monitored at the on / off determination circuit unit E to a voltage at which the operation of the sensor unit D can be ensured. Then,
The relay contact d is turned on to supply power to the lighting fixture H.

Further, a power source circuit section A, a fire detection circuit section B for heat and smoke, a sensor section D comprising an alarm circuit section C,
A sensor body K having an on / off determination circuit section E and a relay circuit section F is configured, and a hooking rosette R having 100V power input terminals a and a is attached to the upper portion of the sensor body K. In addition, a hooking rosette P for powering the lighting fixture H having the output terminals b and b is attached to the lower part, and the power source conversion circuit unit N turns off the power source S by using a diode. When the half-wave rectification is performed, half-wave rectification is performed, and the on / off determination circuit unit E determines that the average voltage appears positive or negative in the half-wave rectification, and the power supply to the lighting fixture H is cut off. It is characterized by.

[0008]

Next, the operation of the fire detector for a house according to the present invention will be described. When the hanging rosette to which the lighting equipment is connected is attached to the hanging rosette on the power supply side, the lighting equipment can be turned on or off by operating the wall switch unit. Remove the hook rosette connected to the lighting fixture from the hook rosette on the power supply side, and replace the hook rosette on the power supply side with the hook rosette installed on the sensor body. By the operation, the current from the power supply is directly supplied into the sensor body.

Next, when the operation of the wall switch unit is switched from ON to OFF, the power supply conversion circuit in the wall switch unit converts the power source so that the ON / OFF determination circuit unit in the sensor body can discriminate. Then, the power supply voltage supplied from the power supply is converted into a constant voltage by the power supply circuit unit so that the fire detection circuit unit such as heat or smoke and the alarm circuit unit can be operated, and the fire detection circuit unit is operated by the constant voltage, In response to the signal from the fire detection circuit section, the alarm circuit section issues an alarm.

Further, the hook rosette installed on the sensor body is attached to the hook rosette on the power source side, and the hook rosette connected to the lighting fixture is attached to the hook rosette to operate the wall switch section. Then, the relay circuit unit operates from on to off by the switching operation of the changeover switch. The power conversion circuit uses a transformer to reduce the voltage to a voltage at which the operation of the sensor unit can be secured when the power is turned off, and the on / off determination circuit unit monitors the voltage to detect the sensor. When the voltage drops to a level that can ensure the operation of the unit, power is supplied to the lighting equipment.

Further, the power conversion circuit uses a diode to perform half-wave rectification when the power is turned off and to turn it on / off.
The off-judgment circuit unit utilizes the fact that the average voltage appears in either positive or negative in half-wave rectification, and discriminates this to cut off the power supply to the lighting fixture.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an electric circuit diagram showing an embodiment of a residential fire detector according to the present invention. In FIG. 1, K is a sensor main body, inside of which there is a power supply circuit section A, a fire detection circuit section B for heat and smoke, a sensor section D comprising an alarm circuit section C, and an ON / OFF determination circuit section E. And a relay circuit unit F, and a hooking rosette R having input terminals a, a of 100 V power source is mounted on the upper part of the sensor body K, and output terminals b, b (that is, lighting) on the lower part. A hook rosette P) for taking the power source of the appliance H is attached.

Reference numeral R'denotes a hook rosette having terminals a'and a'which make electrical contact with the terminals a of the hook rosette R. The hook rosette R and the hook rosette R'are provided. One set is a hooking ceiling rosette. P'is a hook rosette having terminals b'and b'which make electrical contact with the terminals b of the hook rosette P.
And a hook rosette P'are paired to form a hook ceiling rosette.

The hook rosette P'can be removably electrically connected to the hook rosette P, of course.
It can also be detachably connected to other sets of hooking rosettes R '. Further, M is a wall switch portion installed on a wall for turning on / off the power source S, and internally has a power conversion circuit N and a changeover switch c for switching between the on contact a and the off contact b. I have it.
The power conversion circuit N uses a transformer to reduce the voltage to a voltage at which the operation of the sensor unit D can be ensured when the power S is turned off, and the power conversion circuit N uses a diode. Half-wave rectification is performed when the switch is turned off.

Next, the operation state of the residential fire detector according to the present invention will be described. When the hook rosette P'to which the lighting fixture H is connected is attached to the hook rosette R'on the power source side, the terminals b'of the hook rosette P ',
The b'and the terminals a ', a'of the hanging rosette R'are in electrical contact with each other, and the lighting device H can be turned on or off by operating the wall switch section M.

Remove the hanging rosette P'to which the lighting fixture H is connected from the hanging rosette R'on the power source side,
Instead, when the hooking rosette R'installed on the sensor body K is attached to the hooking rosette R'on the power supply side, the terminals a, a of the hooking rosette R and the terminals a ', a'of the hooking rosette R'are attached. And make electrical contact. When the changeover switch c is brought into contact with the on-contact a by operating the wall switch portion M, the current from the power source S remains as it is to the terminals a'and a'of the hooking rosette R'and the terminals a and a of the hooking rosette R. Is supplied into the sensor body K via

Next, when the changeover switch c is changed over to the off contact b side by operating the wall switch section M, the power conversion circuit N in the wall switch section M causes the on / off determination circuit section E in the sensor body K to move. The power is converted so that it can be discriminated. By mounting the hooking rosette R'and the hooking rosette R, the power supply voltage supplied from the power supply S is determined by the power supply circuit unit A so that the fire detection circuit unit B such as heat or smoke or the alarm circuit unit C can operate. The voltage is converted into a voltage, and the fire detection circuit unit B is operated by the constant voltage, and the alarm circuit unit C receives a signal from the fire detection circuit unit B and issues an alarm.

Further, the hanging rosette R'installed on the sensor body K is attached to the hanging rosette R'on the power source side, and the hanging rosette P'to which the lighting fixture H is connected to the hanging rosette P '. When the wall switch section M is operated while the terminals b, b of the hooking rosette P are electrically contacted with the terminals b, b of the hooking rosette P mounted, the ON contact a of the changeover switch c is operated. , The relay contact d of the relay circuit part F by the switching operation of the off contact b
Turns on / off.

The power supply conversion circuit N uses a transformer to reduce the voltage to a voltage at which the operation of the sensor unit D can be ensured when the power supply S is turned off.
The on / off determination circuit section E monitors the voltage to detect the sensor section D.
When the voltage drops to a level that can secure the operation of, the relay contact d is turned on and power is supplied to the lighting fixture H. In addition, the power supply conversion circuit uses a diode to perform half-wave rectification when the power supply S is turned off. The on / off determination circuit unit E prevents the half-wave rectification from appearing either positive or negative in the average voltage. Use this to determine this and make a lighting fixture H
The power supply to is cut off.

When the fire detection circuit section B is a heat detector that senses heat and operates, it is necessary to install the heat detector near the lighting fixture H so that the heat detector can generate heat. Since there is a risk of malfunction, the heat sensor is
It is desirable to install it in a place away from

[0021]

As described above, the fire detector for a house according to the present invention is, in the invention of claim 1, a sensor comprising a power supply circuit section, a fire detection circuit section for heat and smoke, and an alarm circuit section. Section, an ON / OFF determination circuit section, and a relay circuit section are configured to form a sensor main body.
A hook rosette with an input terminal of 0V power supply is attached, and a hook rosette with an output terminal for powering the lighting equipment is attached to the lower part, and the power conversion circuit section uses a transformer. As a result, when the power is turned off, the voltage is lowered to a voltage at which the operation of the sensor unit can be secured, and the on / off determination circuit unit monitors the voltage and drops to a voltage at which the operation of the sensor unit can be secured,
This has the effect of turning on the relay contacts and supplying power to the lighting equipment.

According to the second aspect of the present invention, a power source circuit section, a fire detection circuit section for heat or smoke, a sensor section including an alarm circuit section, an on / off determination circuit section and a relay circuit section are provided inside. And a hook rosette having an input terminal for a 100V power source mounted on the upper part of the sensor body, and a hook rosette for powering the lighting fixture H having an output terminal on the lower part. The power conversion circuit uses a diode to perform half-wave rectification when the power is turned off, and the on / off determination circuit section allows the average voltage to appear either positive or negative in half-wave rectification. Is used to discriminate this and cut off the power supply to the lighting equipment.

Furthermore, even when the invention of claim 1 or the invention of claim 2 is used, when the fire detector is installed in the house, the power line of the existing lighting equipment is used as it is, so that it is special. There is no need for wiring work for indoor power supply, and there is no need for wiring work to supply power to a fire detector installed at a high position from an existing outlet installed at a low position. It has the advantage of cost savings.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram showing an embodiment of a residential fire detector according to the present invention.

[Explanation of symbols]

 K Sensor body A Power circuit section B Fire detection circuit section C Warning circuit section D Detector section E ON / OFF judgment circuit section F Relay circuit section M Wall switch section N Power conversion circuit section R, R'Hooking rosette P, P'Hook rosette H Lighting fixture S Power supply

Claims (2)

[Claims] 1. A sensor main body comprising a power supply circuit section, a fire detection circuit section for heat and smoke, a sensor section including an alarm circuit section, an on / off determination circuit section and a relay circuit section, A hooking rosette having an input terminal for a 100V power supply is mounted on the upper part of the sensor body, and a hooking rosette having an output terminal for powering a lighting fixture is mounted on the lower part. The unit uses a transformer to reduce the voltage to a voltage that can ensure the operation of the sensor unit when the power is turned off.
A fire detector for homes, characterized in that the ON / OFF judgment circuit section monitors the voltage and when the voltage drops to a level that can secure the operation of the detector section, the relay contacts turn on and power is supplied to the lighting equipment. 2. A sensor main body comprising a power supply circuit section, a fire detection circuit section for heat and smoke, a sensor section including an alarm circuit section, an on / off determination circuit section, and a relay circuit section. Then, a hook rosette with an input terminal of 100V power supply is attached to the upper part of the sensor body,
At the bottom is a hanging rosette for powering the luminaire that has an output terminal. The power conversion circuit uses a diode to perform half-wave rectification when the power is turned off and to turn it on / off. A fire detector for a house, characterized in that an off-judgment circuit unit judges that the average voltage appears positive or negative in half-wave rectification and cuts off the power supply to the lighting equipment.