JP3200571U - Safety device for gas appliances - Google Patents

Abstract

A safety scheduled control device for a gas appliance is provided. A safety scheduled control apparatus for a gas appliance includes an electromagnetic switch, a first timing controller, a second timing controller, a power converter, and an alarm means. By counting the scheduled usage time of the gas appliance by the first timing controller, the power transferred to the electromagnetic switch is controlled, and the opening and closing of the gas passage G of the gas appliance is controlled. The risk of explosions caused by continuously supplying gas to the source of fire can be avoided, or the risk of the gas appliance being continuously incompletely burned and CO poisoning can be avoided. [Selection] Figure 1

Description

  The present invention relates to a safety fixed time control device for a gas appliance, and more particularly to a safety fixed time control device for a gas appliance that controls opening and closing of a gas passage of the gas appliance with an electromagnet.

  With the advancement of science and technology, people widely use various energy such as oil, electricity and water in daily life, and gas has become an indispensable energy in people's lives. Gas appliances that use gas, such as gas stoves and water heaters, can be used conveniently because they convey gas through a pipeline in the process of using gas.

  However, the gas appliance has convenience in use, but there is also a danger at the same time. For example, when using a gas stove, if the user suddenly gets in the way of the job and leaves the gas stove, forgets that it is still cooking on the gas stove, It becomes baked and is prone to explosion.

  Water heaters using natural gas use gas as an energy source for combustion. However, when the weather is cold, many users close doors and windows and use showers in a closed bathroom space. I like. For this reason, if the gas is not completely burned and CO (carbon monoxide) leaks, or if the gas flows out of the gas pipe, there is a risk of poisoning by the user.

  Thus, how to provide a gas appliance safety control device and a CO / gas leak detector is a problem that must be overcome.

  In view of the above, the present invention counts the time with a timer, and after the gas appliance reaches the scheduled usage time, the safety scheduled control device is turned off to shut off the gas pipeline of the gas appliance. Provided is a safety fixed-time control device for gas appliances that avoids continuously supplying gas.

  A safety scheduled control device for a gas appliance according to the present invention includes a first timing controller, a second timing controller, a power converter, an electromagnetic switch, and an alarm means. The electromagnetic switch opens and closes the gas passage according to an energized state or a disconnected state. The first timing controller counts the scheduled usage time of the gas appliance, and is further electrically connected to the power supply means. The second timing controller is electrically connected to the electromagnetic switch and counts the energization time of the electromagnetic switch. The power converter is electrically connected to the first timing controller and the second timing controller, and switches the power from the power feeding means from the first timing controller to the second timing controller. The alarm means is electrically connected to the first timing controller, and after the gas appliance has reached the scheduled usage time, the first timing controller controls the alarm means to generate an alarm signal, wherein the electromagnetic switch Is in an energized state in which the gas passage is opened within the scheduled use time, and when the first timing controller reaches the scheduled use time, the first timing controller is in a disconnection state in which the electromagnetic switch closes the gas passage. Disconnect the electrical connection with the power feeding means.

  In addition, the safety scheduled control apparatus for a gas appliance according to the present invention further includes a CO / gas leak detector electrically connected to the first timing controller, and the CO / gas leak detector includes the gas passage. When it is detected that the concentration of the gas leaked out of the gas or the CO generated by the gas incomplete combustion exceeds a predetermined value, the first timing controller is disconnected from the power supply means and connected to the alarm means. An electrical signal is generated by the first timing controller so as to send an alarm signal.

  As described above, the safety scheduled control apparatus for gas appliances according to the present invention is used for daily life of general users, and further, even if it is an elderly person or a young user by a convenient timer interface, the gas appliances are used. The opening and closing time can be set conveniently, quickly and easily. The gas appliance can avoid the danger of explosion by continuously supplying gas to the fire source, or the gas appliance will be continuously incompletely burned. Avoid the danger of CO poisoning.

It is a figure which shows the state before electricity supply of the safety scheduled control apparatus of the gas appliance which concerns on this invention. It is a figure which shows the electricity supply initial state of the safety fixed time control apparatus of the gas appliance which concerns on this invention. It is a figure which shows the state in use of the safety scheduled control apparatus of the gas appliance which concerns on this invention. It is a figure which shows that the safety fixed-time control apparatus of the gas appliance of this invention became the scheduled use time. It is a figure which shows the 3rd timing controller of the safety fixed-time control apparatus of the gas appliance of this invention. It is a figure which shows operation | movement of the CO * gas leak detector of the safety fixed-time control apparatus of the gas appliance of this invention. It is a figure which shows operation | movement of the CO * gas leak detector of the safety fixed-time control apparatus of the gas appliance of this invention.

FIG. 1 is a diagram showing a state before energization of a safety scheduled control device for a gas appliance according to the present invention. The gas appliance safety scheduled control apparatus 1 of the present invention includes a first timing controller T1, a second timing controller T2, an electromagnetic switch M, a power converter C, and an alarm means B.
The electromagnetic switch M includes a valve plug M1, an electromagnet M2, a coil spring M3, a case M4, and a link M5. The case M4 is connected to one opening of the gas passage G, and the valve plug M1 is provided in the gas passage G. The first end M51 of the link M5 passes through the case M4 and is connected to the valve plug M1, and the coil spring M3 is provided around the first end M51 of the link M5 and provided in the case M4, and the second end of the link M5. M52 is operated by the magnetic force generated by the electromagnet M2.
The first timing controller T1 counts the scheduled usage time of the gas appliance and is electrically connected to the power supply means V. The second timing controller T2 is electrically connected to the electromagnetic switch M and counts the energization time of the electromagnetic switch M. The power converter C is electrically connected to the first timing controller T1 and the second timing controller T2, and switches the power from the power supply means V from the first timing controller T1 to the second timing controller T2. The alarm means B is electrically connected to the first timing controller T1, and after the gas appliance has reached a predetermined usage time, the first timing controller T1 controls the alarm means B so as to generate an alarm signal.

  Here, the electromagnetic switch M is energized within the scheduled usage time, and the electromagnet M2 generates a magnetic force that can resist the restoring force of the coil spring M3, and adsorbs the second end M52 of the link M5 to cause the gas passage G When the first timing controller T1 reaches the scheduled usage time, the first timing controller T1 disconnects the electrical connection with the power supply means V and causes the electromagnetic switch M to be in a disconnected state. Then, the magnetic force of the electromagnet M2 is lost, and the valve plug M1 closes the gas passage G by the restoring force of the coil spring M3. More specifically, the inside of the electromagnet M2 has a concave groove, and when the electromagnetic switch M is energized, the magnetic force generated by the electromagnet M2 moves the link M5 into the concave groove, and accordingly the plug connected to the link M5. When the gas passage G is opened by moving M1 and the electromagnetic switch M is disconnected, the link M5 moves out of the groove, and the plug M1 connected to the link M5 is moved accordingly. Close the passage G.

  As described above, the safety scheduled control device 1 for a gas appliance according to the present invention can be applied to a gas appliance such as a gas stove or a water heater, and is preset according to the time to be used when the user uses the gas appliance. be able to. For example, when the user cooks on the gas stove, the gas stove opening time can be set by the first timing controller T1, and the gas stove cooking time is set and counted. Similarly, the safety scheduled control apparatus 1 for gas appliances of the present invention can be applied to a water heater, and can be set according to the time when the user intends to use the water heater. In the embodiment of the present invention, the first timing controller T1 is a numeric keypad interface, and the count time is arbitrarily set in a stepless manner, and the longest set time is 90 minutes.

FIGS. 2-4 is a figure which shows the electricity supply initial state of the safety fixed-time control apparatus of the gas appliance based on this invention, the figure which shows an in-use state, and the figure which has reached the scheduled use time.
The present invention further controls the opening and closing of the gas passage G with an electromagnet M2 capable of generating a magnetic force after passing an electric current. As a principle, the electromagnet M2 is a non-permanent magnet, and has a magnetic force when the electromagnet M2 conducts electricity, and loses the magnetic force after being cut off. Therefore, the first timing controller T1 of the safety scheduled control device 1 for the gas appliance is used. Is electrically connected to the power supply means V, the electromagnet M2 generates a magnetic force that can resist the restoring force of the coil spring M3 to attract the link M5 upward, but the first end M51 of the link M5 is the valve. Since it is connected to the stopper M1, when the link M5 is attracted upward, the stopper M1 is also attracted upward together with the link M5. As a result, the gas passage G is opened and the magnetic force of the electromagnet M2 is lost when the power is cut off, and the stopper M1 is pressed to the position where the gas passage G is closed by the restoring force of the coil spring M3. Here, the link M5 includes a material that can be attracted magnetically so that it can be attracted when the electromagnet M2 is energized to generate a magnetic force. In the embodiment of the present invention, if the link M5 is installed only in the magnetic force induction range when the electromagnet M2 is energized, the link M5 can be attracted by the magnetic force.

As described above, after the first timing controller T1 of the gas appliance safety scheduled control device 1 is turned on and starts counting, the power generated by the power supply means V is switched to the second timing controller T2 by the power converter C. The power is transferred to the electromagnet M2 of the electromagnetic switch M via the second timing controller T2. Subsequently, the second timing controller T2 counts the energization time of the electromagnetic switch M and selects a coil through which a current is passed according to the energization time. Further, the safety scheduled control apparatus 1 for the gas appliance includes a first coil L1 and a second coil L2 that cover the electromagnet M2, and the second timing controller T2 determines whether the first coil L1 or the first coil L1 is changed depending on the energization time of the electromagnetic switch M. The two coils L2 are electrically connected.
For example, in the embodiment of the present invention, the second timing controller T2 is electrically connected to the electric circuit having the first coil L1 within the energization time of 2 to 3 seconds, and 300 mA (I1 in FIG. 2) is connected to the electromagnet M2. The first current I1 is supplied to generate a large magnetic force and resist the restoring force of the coil spring M3. After the energization time of 2 to 3 seconds has elapsed, the electromagnet M2 has already overcome the restoring force of the coil spring M3, so that the second timing controller T2 disconnects the first coil L1 from the electrical circuit, Instead of the electric circuit having the coil L2, it is electrically connected to supply a second current I2 of 160 mA (I2 in FIG. 3) to the electromagnet M2, and the supplied second current I2 is smaller than the first current I1.
Therefore, the safety scheduled control device 1 of the gas appliance of the present invention can further reduce the load current by about 50%, and the coil through which the current has passed is too large in use over a long period of time. In case you can avoid burning. Further, the wire diameter and the elastic coefficient of the coil spring M3 can be further selected according to the magnitude of the first current I1 so as to control the speed at which the valve plug M1 opens the gas passage G. In the embodiment of the present invention, the coil spring M3 having a 0.6 mm wire diameter may be selected by the first current I1 of 300 mA.

  Take a gas stove as an example. When the scheduled cutting time is reached, it is displayed that the scheduled cooking time has been reached, so the gas path G of the gas stove is automatically closed, and the gas is continuously supplied to the fire source by the gas stove to avoid the risk of an explosion. It is done. Similarly, when the water heater used by the user reaches the scheduled usage time, it is displayed that the user has finished using the water heater, so the gas passage G of the gas stove is automatically closed and the water heater is completely burned. This avoids the risk of CO poisoning.

  The alarm means B is electrically connected to the power supply means V by the first timing controller T1. When the first timing controller T1 is not at the scheduled usage time, the warning means B is disconnected from the power supply means V, and when the first timing controller T1 is at the scheduled usage time, the warning means B is the first The alarm controller is configured to be electrically connected to the power supply means V by the timing controller T1.

FIG. 5 is a diagram showing a third timing controller of the safety scheduled control apparatus for the gas appliance of the present invention. The gas appliance safety scheduled control apparatus 1 of the present invention further includes a third timing controller T3, counts the alarm time of the alarm means B, and is electrically connected to the first timing controller T1 and the alarm means B. Configured as follows.
The warning time of the warning means B is 5 to 10 seconds, and notifies the user that the gas passage G of the gas appliance has been closed. After the gas appliance has reached the scheduled usage time, the first timing controller T1 is switched to be electrically connected to the third timing controller T3, and the third timing controller T3 is further electrically connected to the power supply means V. When the alarm time of the alarm means B is reached, the electrical connection between the alarm means B and the first timing controller T1 is disconnected by the third timing controller T3.

  In the embodiment of the present invention, the alarm means B includes a buzzer or an alarm lamp, and the volume of the sound may be fixed or may be gradual from small to large. The alarm lamp includes a light emitting device such as an LED. The first timing controller T1, the second timing controller T2, and the third timing controller T3 of the present invention are time relays.

Moreover, the safety fixed time control apparatus 1 of the gas appliance of the present invention has a function of counting the scheduled usage time of the gas appliance, and further detects whether the gas appliance leaks gas or generates CO due to incomplete gas combustion. Includes functionality. 6A and 6B are diagrams showing the operation of the CO / gas leak detector of the safety scheduled control apparatus for a gas appliance according to the present invention.
The CO / gas leak measuring device S is electrically connected to the first timing controller T1, and the CO / gas leak detector S leaks out of the gas passage G or the concentration of CO generated by incomplete combustion of the gas. Is detected to exceed a predetermined value, an electric signal is generated in the first timing controller T1, the electric connection with the power supply means V is disconnected by the first timing controller T1, and the power converter C is further connected to the first timing controller T1. Since power from the power supply means V cannot be switched from the first timing controller T1 to the second timing controller T2 via T1, power cannot be supplied to the electromagnet M2. When electricity is not passed through the electromagnet M2, the electromagnet M2 loses its magnetic force, the valve plug M1 closes the gas passage G by the restoring force of the coil spring M3, and it is avoided that the gas appliance continuously supplies gas to the fire source. The first timing controller T1 is electrically connected to the alarm means B after disconnecting the electrical connection with the power supply means V.
In the embodiment of the present invention, the predetermined value of the CO or gas concentration may be provided in accordance with the standard value determined in each country, or the size of the predetermined value may be set by the user. Further, the CO / gas leak detector S of the present invention may be built in the safety scheduled control device of the gas appliance, or may be electrically connected to the safety scheduled control device of the external gas appliance.

  In the embodiment of the present invention, the power supply means V inputs an alternating current to the first timing controller T1, converts it into a direct current via the power converter C, and inputs it to the second timing controller T2. The alternating current input by the power supply means V varies depending on the voltage of each country. For example, in the case of Taiwan, when the gas appliance safety scheduled control apparatus 1 of the present invention is used, the AC current input by the power supply means V is 110V, and the AC converter AC 110V is converted into a DC 12V DC current by the power converter C. To the second timing controller T2. Moreover, in the Example of this invention, the power converter C contains the electric appliance which can convert power supplies, such as a transformer.

  As described above, the gas appliance safety scheduled control device according to the present invention is used for daily life of general users. Furthermore, the convenient and convenient timer interface allows the elderly or young users to open and close the gas appliance open / close time. Can be set easily, quickly, and easily, and the risk of explosions can be avoided by continuously supplying gas to the fire source with the gas appliance, or the gas appliance is continuously incompletely burned and CO poisoning Avoid the danger of becoming.

DESCRIPTION OF SYMBOLS 1 Gas appliance safety scheduled control apparatus 1 Board | substrate T1 1st timing controller T2 2nd timing controller T3 3rd timing controller M Electromagnetic switch M1 Valve plug M2 Electromagnet M3 Coil spring M4 Case M5 Link M51 1st end M52 2nd end B Alarm Means C Power converter V Power supply means I1 1st current I2 2nd current L1 1st coil L2 2nd coil S CO / gas leak detector G gas passage

Claims (12)

An electromagnetic switch that opens and closes the gas passage when energized or disconnected;
A first timing controller that counts a scheduled use time of the gas appliance and is electrically connected to the power supply means;
A second timing controller that is electrically connected to the electromagnetic switch and counts the energization time of the electromagnetic switch;
A power converter that is electrically connected to the first timing controller and the second timing controller and switches power from the power supply means from the first timing controller to the second timing controller;
Alarm means electrically connected to the first timing controller and controlling the alarm means so that the first timing controller generates an alarm signal after the gas appliance has reached a scheduled usage time;
The electromagnetic switch is energized to open the gas passage within the scheduled usage time, and when the first timing controller reaches the scheduled usage time, the first timing controller causes the electromagnetic switch to pass through the gas passage. The electrical connection with the power supply means is cut so as to be in a disconnection state to be closed,
Safety scheduled control equipment for gas appliances.   The electromagnetic switch includes a case connected to one opening of a gas passage, a valve plug provided in the gas passage, a link having a first end passing through the case and connected to the valve plug, A coil spring provided around the first end of the link; and an electromagnet that generates a magnetic force and attracts the second end of the link; and the electromagnet is energized within the scheduled use time. The electromagnet generates a magnetic force that can resist the restoring force of the coil spring, and adsorbs the second end of the link, thereby opening the gas passage, and the electromagnetic switch is in a disconnected state. 2. The apparatus according to claim 1, wherein the magnetic force of the electromagnet is lost, and the valve plug closes the gas passage by a restoring force of the coil spring.   The said fixed link contains the material which can adsorb | suck to magnetism, The safety scheduled control apparatus of the gas appliance of Claim 2 characterized by the above-mentioned.   In addition, the first timing controller includes a first coil and a second coil that cover the electromagnet, and the second timing controller is electrically connected to the first coil or the second coil according to the energization time of the electromagnetic switch. The second timing controller is electrically connected to the first coil within 3 seconds of energization time of the electromagnetic switch, and after the energization time of the electromagnetic switch exceeds 3 seconds, the second timing controller The safety fixed time control device for a gas appliance according to claim 2, wherein the safety device is electrically connected to the second coil.   The safety scheduled control device for a gas appliance according to claim 4, wherein the first current passed through the first coil is larger than the second current passed through the second coil.   The safety scheduled control of the gas appliance according to claim 1, further comprising a third timing controller that counts an alarm time of the alarm means and is electrically connected to the first timing controller and the alarm means. apparatus.   2. The gas appliance according to claim 1, wherein the power supply unit inputs an alternating current to the first timing controller, converts the alternating current into a direct current through the power converter, and inputs the direct current to the second timing controller. Safety scheduled control device.   The said power supply converter contains a transformer, The safety fixed time control apparatus of the gas appliance of Claim 1 characterized by the above-mentioned.   2. The safety scheduled control apparatus for a gas appliance according to claim 1, wherein the alarm means includes a buzzer or an alarm lamp.   And a CO / gas leak detector electrically connected to the first timing controller, wherein the CO / gas leak detector is a gas leaked out of the gas passage or CO generated by incomplete combustion of the gas. When it is detected that the concentration of the liquid exceeds a predetermined value, an electrical signal is generated by the first timing controller so that the first timing controller disconnects the electrical connection with the power feeding means and forms a passage with the alarm means. The safety fixed-time control apparatus for a gas appliance according to claim 1, wherein:   The said gas appliance contains a gas stove or a water heater, The safety fixed-time control apparatus of the gas appliance of Claim 1 characterized by the above-mentioned.   The safety fixed time control device for a gas appliance according to claim 6, wherein the first timing controller, the second timing controller, and the third timing controller are time relays.

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