JP4190537B2 - Temperature detection device - Google Patents

Description

  The present invention relates to a temperature detection device.

  There are various temperature detection devices. There are various purposes. For example, there are many types of fire detectors that detect temperature. In the type of fire detector that detects temperature, the ambient temperature of the detector rises due to the heat of the fire, and when the temperature reaches a set temperature, the fire is detected by the fire detector. Therefore, it can be said that the sensor is also an example of a temperature detection device.

  By the way, as described in Japanese Patent Application Laid-Open No. 2003-36488, the fire detector is usually mounted and installed on the ceiling surface, but the installation work is not easy. Man-hours are required and cost is high.

  Furthermore, although it is normal for a fire detector to be installed in a building after construction, the fire detector is not installed in a building or workplace under construction because of cost. Therefore, when a fire occurs in a building or work place under construction, it is not possible to deal with it accurately, and there is a strong demand for countermeasures.

  For the same reason, fire detectors are not installed in exhibition halls, event halls, performance halls, temporary houses, temporary lodgings, temporary factories and temporary offices. Therefore, when a fire breaks out, it cannot be dealt with accurately.

  In addition, fires may occur in ships, aircraft, vehicles and workplaces under construction.

  Accordingly, an object of the present invention is to provide a temperature detection device having a special configuration and suitable for use as a fire detector.

  Another object is to provide a temperature detection device that can be easily installed when used as a fire detector, does not require man-hours, and is low in cost.

  Another object is to provide a fire detector suitable for use as a fire detector and installed in a building or workplace under construction.

  Another object of the present invention is to provide a temperature detection device suitable for use as a fire detector and installed in a temporary building such as an exhibition hall.

Another object of the present invention is to provide a temperature detection device suitable for use as a fire detector and installed in ships, aircrafts, vehicles and workplaces under construction.
JP 2003-36488 A

  According to the present invention, the pair of conductors are connected to the power supply device. Further, when the shape memory alloy or the shape memory resin body is provided around the pair of conductors and the ambient temperature of the shape memory alloy or the shape memory resin body is the set temperature, the shape memory alloy or the shape memory resin body is caused by the heat. The shape is restored and each conductor is contacted or connected. Therefore, a current is supplied from the power supply device, and the ambient temperature is detected by the current.

  In a preferred embodiment, the conductor comprises a pair of wire conductors. And when the shape memory alloy or the shape memory resin body is provided around the pair of electric wires and the shape memory alloy or the shape memory resin body is restored, each electric wire is tightened by the shape memory alloy or the shape memory resin body, Conductor contacts.

  The shape memory alloy or shape memory resin body is coiled and is wound around a pair of wires.

  Further, a plurality of shape memory alloys or shape memory resin bodies are arranged at intervals along the electric wires and are provided around the pair of electric wires.

  Furthermore, the electric wire is formed of a soluble insulating wire having a soluble insulator, and the conductor is accommodated in the soluble insulator. And when the ambient temperature of an electric wire is predetermined temperature, a soluble insulator melts with the heat.

  Furthermore, in a preferred embodiment, this device is used as a fire detector. When the ambient temperature rises due to the heat of the fire and the temperature reaches the set temperature, the shape memory alloy or the shape memory resin body is restored by the heat of the fire, and the fire is detected by the current.

  The conductor is made of copper or aluminum, and the electric wire is flexible and can be laid arbitrarily.

  Further, each conductor is connected to an alarm device, and when the conductor is contacted or connected, current flows to the alarm device and an alarm is issued by the alarm device.

  When a fusible insulated wire is used as the wire, a metal body having a large elasticity may be provided around the pair of wires. When each electric wire is sandwiched by the metal body, when the ambient temperature of the electric wire is a predetermined temperature, the soluble insulator is melted by the heat, and each conductor is contacted or connected by the metal body. Therefore, a current is supplied from the power supply device, and the ambient temperature is detected by the current.

  In this case, the metal body is made of steel or stainless steel, and preferably has a coil or clip shape.

FIG. 1 is a side view showing an embodiment of the present invention. FIG. 2 is an electric circuit diagram of the fire detector of FIG. FIG. 3 is a side view showing another embodiment. FIG. 4 is a side view showing another embodiment. FIG. 5 is a side view showing a state where the conductor of FIG. 4 is connected. FIG. 6 is a side view showing another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conductor 2 Shape memory alloy body 3 Electric wire 4 AC adapter 7 Fire lamp 8 Bell or buzzer 12 Metal body

  Examples of the present invention will be described below.

  FIG. 1 shows a temperature detecting device according to the present invention. In this device, a pair of conductors 1 are connected to a power supply device. Furthermore, when the shape memory alloy body 2 is provided around the pair of conductors 1 and the ambient temperature of the shape memory alloy body 2 is a set temperature, the shape memory alloy body 2 is restored in shape by the heat, and each conductor 1 is contacted or connected. Therefore, a current is supplied from the power supply device, and the ambient temperature is detected by the current.

  In this embodiment, the conductor 1 is composed of a conductor of a pair of electric wires 3. A shape memory alloy body 2 is provided around the pair of electric wires 3. The shape memory alloy body 2 has a coil shape and is wound around a pair of electric wires 3. Further, in this embodiment, a plurality of shape memory alloy bodies 2 are arranged at intervals along the electric wires 3 and are provided and wound around the pair of electric wires 3. Furthermore, the electric wire 3 consists of a soluble insulated wire which has a soluble insulator, and the conductor 1 is accommodated in the soluble insulator.

  Furthermore, in this embodiment, this device is used as a fire detector. The conductor 1 is made of copper or aluminum, and the electric wire 3 is flexible and can be laid arbitrarily.

  Furthermore, each conductor 1 is connected to a power supply device and an alarm device. For example, as shown in FIG. 2, an AC adapter 4 is used in the power supply device, and each conductor 1 is connected to a relay 5, a switch 6, and an AC adapter 4. Further, a fire lamp 7 and a bell or buzzer 8 are used for the alarm device, and each conductor 1 is connected to the relay contact 9, the fire lamp 7 and the bell or buzzer 8. Further, the power lamp 10 is connected to the switch 6 and the AC adapter 4.

  For example, in a building or work site under construction, the AC adapter 4 is plugged into an outlet, and the switch 6 is switched to the ON state. Therefore, a current is supplied from the AC adapter 4, flows through the switch 6, flows to the power lamp 10, and the power lamp 10 is turned on by the current. Thereafter, the electric wire 3 is laid on the floor surface, ceiling surface or wall surface. The electric wire 3 may be installed in the air and installed.

  Therefore, after that, when a fire occurs, the ambient temperature rises due to the heat of the fire, and when the temperature reaches the set temperature, the shape memory alloy body 2 is restored by the heat of the fire, and the radius thereof decreases. Therefore, each electric wire 3 is clamped by the shape memory alloy body 2, and the conductor 1 contacts. Therefore, a current is supplied from the AC adapter 4 and a fire is detected by the current.

  Furthermore, a current flows through the conductor 1 and flows into the relay 5, the relay 5 is excited by the current, and the relay contact 9 is switched to the ON state. Therefore, the current flows through the relay contact 9 and flows to the fire lamp 7 and the bell or buzzer 8, and the fire lamp 7 is turned on by the current, and the bell or buzzer 8 sounds. Therefore, an alarm is given by the fire lamp 7 and the bell or buzzer 8, and the fire can be dealt with accurately.

  Furthermore, in this embodiment, the electric wire 3 is a fusible insulated wire, and the conductor 1 is accommodated in the fusible insulator as described above. Therefore, when a fire occurs, the ambient temperature rises due to the heat of the fire, and when the temperature reaches a predetermined temperature, the soluble insulator is melted by the heat of the fire. At the same time, the shape memory alloy body 2 is restored by the heat of the fire, and the electric wires 3 are tightened. Therefore, each conductor 1 can be made to contact reliably.

  In addition, as described above, the plurality of shape memory alloy bodies 2 are arranged at intervals along the electric wires 3, provided around the pair of electric wires 3, and wound. Therefore, there is no problem even if a fire occurs in any part of the entire length of the electric wire 3. At that portion, the shape memory alloy body 2 is restored in shape by the heat of the fire, each electric wire 3 is tightened, and the conductor 1 comes into contact therewith. Therefore, it is possible to reliably detect a fire.

  As described above, the conductor 1 is made of copper or aluminum, and the electric wire 3 is flexible and can be laid arbitrarily. Therefore, the electric wire 3 can be easily laid on the floor surface, ceiling surface, wall surface or in the air.

  Therefore, in the case of this fire detector, it is only necessary to lay the electric wire 3, it can be easily installed, man-hours are not required, and the cost is low. As a result, this fire detector can be installed in a building or work place under construction. Therefore, when a fire breaks out in a building under construction or its work place, it can be dealt with accurately.

  This fire detector can be installed not only in a building under construction but also in a temporary building such as an exhibition hall. Therefore, when a fire occurs in the temporary building, it can be dealt with accurately.

  This fire detector can also be installed in ships, aircraft, vehicles and workplaces under construction. Therefore, when a fire breaks out, it can be dealt with accurately.

  In a building after construction, when a normal fire detector is attached to the ceiling surface, the fire detector may be used for the building, and the electric wire 3 may be laid on the floor or wall surface. The electric wire 3 may be installed in the air and installed. In this case, in addition to the fire detector on the ceiling surface, a fire detector on the floor surface, wall surface, or air can additionally detect fire, which is preferable.

  In this embodiment, the AC adapter 4 is used for the power supply device. However, a battery such as a dry battery or a storage battery may be used for the power supply device, and each conductor 1 may be connected thereto.

  A radio signal transmitter and receiver may be used for the alarm device, and when a fire occurs and the conductor 1 contacts, a radio signal may be transmitted from the transmitter and received by the receiver. Further, an alarm may be given by a fire lamp, bell or buzzer based on the signal.

  As shown in FIG. 3, the shape memory alloy body 2 is composed of a double coil in the opposite direction, and may be in a sleeve net shape. In this case, when the electric wire 3 is inserted into the sleeve net-shaped shape memory alloy body 2, the shape memory alloy body 2 is provided around the pair of electric wires 3 and supported. When a fire occurs, the shape memory alloy body 2 is restored in shape by the heat of the fire, and its radius decreases. Therefore, each electric wire 3 is clamped by the shape memory alloy body 2, the conductor 1 comes into contact therewith, and a fire is detected.

  The shape memory alloy body may have a clip shape. Even if it is a clip shape, it can be provided and supported around a pair of wires. When a fire occurs, the shape memory alloy body is restored by the heat of the fire, and its radius decreases. Therefore, each electric wire is clamped by the shape memory alloy body, the conductors are in contact with each other, and a fire is detected.

  It is also conceivable to use a shape memory resin body instead of the shape memory alloy body.

  It is conceivable to use this temperature detection device for other purposes as well as fire detectors.

  FIG. 4 shows another embodiment. Also in this embodiment, the pair of conductors 1 are connected to the power supply device, and the shape memory alloy body 2 is provided around the pair of conductors 1. The shape memory alloy body 2 is coiled. Furthermore, each conductor 1 penetrates the cover case 11, the cover case 11 is supported by the conductor 1, and the shape memory alloy body 2 is accommodated in the cover case 11 and engaged with and held by the inner peripheral surface thereof.

  Therefore, when the ambient temperature of the shape memory alloy body 2 is the set temperature, as shown in FIG. 5, the shape memory alloy body 2 is restored in shape by the heat, and the radius is reduced. Therefore, each conductor 1 is connected by the shape memory alloy body 2, and current is supplied from the power supply device, and the ambient temperature is detected by the current.

  In the apparatus of FIG. 4, the shape memory alloy body 2 may have a sleeve net shape or a clip shape.

  In the embodiment of FIG. 6, as in the embodiment of FIG. 1, in the pair of electric wires 3, the conductor 1 is connected to the power supply device. The electric wire 3 is the same as the electric wire in FIG. 1 and is composed of a soluble insulated wire having a soluble insulator, and the conductor 1 is accommodated in the soluble insulator. Further, a highly elastic metal body 12 is provided around the pair of electric wires 3. The metal body 12 is made of steel or stainless steel. And when each electric wire 3 is pinched | interposed by the metal body 12, and the ambient temperature of the electric wire 3 is predetermined temperature, a soluble insulator fuse | melts with the heat | fever, At the same time, the metal body 12 is shaped by elasticity. It restores and each conductor 1 is contacted or connected by the metal body 12. Therefore, a current is supplied from the power supply device, and the ambient temperature is detected by the current.

  In this embodiment, the metal body 12 has a coil shape and is wound around the pair of electric wires 3. Therefore, when the fusible insulator is melted, the metal body 12 is restored in shape by elasticity, and its radius is reduced. Therefore, each conductor 1 is contacted or connected by the metal body 12. The metal body 12 may have a clip shape.

  Further, in this embodiment, like the shape memory alloy 2 of FIG. 1, a plurality of metal bodies 12 are arranged along the electric wires 3 at intervals, and are provided around the pair of electric wires 3. The conductors 1 are connected to the power supply device and the alarm device as in the embodiment of FIG. And when this is used as a fire detector and a fire breaks out, the soluble insulator is melted by the heat, and each conductor 1 is contacted or connected by the metal body 12, and current is supplied from the power supply device. A fire is detected. Further, current flows to the alarm device, and an alarm is issued by the alarm device.

Claims (8)

A pair of wire conductors connected to the power supply; and
Made from a shape memory alloy or a shape memory resin body provided around a predetermined position of a conductor of said pair,
When the ambient temperature of the shape memory alloy or the shape memory resin body is a set temperature, the shape memory alloy or the shape memory resin body is restored by the heat, the conductors are contacted or connected, and the current is supplied to the power supply device. The temperature detecting device is characterized in that the ambient temperature is detected by the current supplied from the power source.   The conductor comprises a conductor of a pair of electric wires, and the shape memory alloy or shape memory resin body is provided around the pair of electric wires, and when the shape memory alloy or shape memory resin body is restored in shape, the shape memory alloy The temperature detecting device according to claim 1, wherein each of the electric wires is tightened by a shape memory resin body, and the conductor is in contact therewith.   The temperature detection device according to claim 2, wherein the shape memory alloy or the shape memory resin body is in a coil shape and is wound around the pair of electric wires.   The temperature detection device according to claim 2, wherein a plurality of the shape memory alloys or shape memory resin bodies are arranged at intervals along the electric wires and are provided around the pair of electric wires.   The electric wire is formed of a fusible insulated wire having a fusible insulator, and the conductor is accommodated in the fusible insulator, and when the ambient temperature of the electric wire is a predetermined temperature, the soluble insulator is heated by the heat. The temperature detection device according to claim 2, wherein the temperature is melted.   When used as a fire detector, the ambient temperature rises due to the heat of the fire, and when the temperature reaches the set temperature, the shape memory alloy or shape memory resin body is restored in shape by the heat of the fire, The temperature detection device according to claim 1, wherein a fire is detected.   The temperature detection device according to claim 6, wherein the conductor is made of copper or aluminum, and the electric wire is flexible and can be laid arbitrarily.   The said each conductor is connected to the alarm device, When the said conductor is contacted or connected, the said electric current flows into the said alarm device, The alarm was made by the said alarm device, It is characterized by the above-mentioned. The temperature detection apparatus described in 1.

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