TW201610368A - Timing controlling device in safety for a gas apparatus - Google Patents

Abstract

The present invention is directed to a timing controlling device in safety for a gas apparatus. The timing controlling device in safety for a gas apparatus includes a first timing controller, a second timing controller, a magnetic switch, a transformer and an alarm unit, wherein the magnetic switch includes an electromagnet, a valve plug, a spring, a cover and a connecting rod. The invention counts the predetermined used time of the gas apparatus by the first timing controller to control the electric power transferred to the electromagnet; as a result, whether or not the gas channel of the gas apparatus is enabled can be controlled. Therefore, the present invention avoids the explosible dangerous when the gas continuously deliver to the fire source. In addition, the present invention avoids the intoxication when the gas cannot be burned completely by the gas apparatus.

Description

Safety timing control device for gas appliances

The present invention relates to a safety timing control device for a gas appliance, and more particularly to a safety timing control device for a gas appliance that uses an electromagnet to control a gas passage switch of a gas appliance.

With the advancement of science and technology, people have used a variety of energy sources such as oil, electricity and water in their lives. Among them, gas is also one of the indispensable energy sources in today's people's lives. The use of gas appliances such as gas burners or water heaters transports gas through the pipeline during the use of gas, so that gas appliances can be used more conveniently.

However, although there is convenience in using gas appliances, there are dangers. For example, when using a gas stove, if the user leaves the gas stove due to temporary disturbance of other events, he forgets that the cooking of the food is still continuing on the gas stove. Once the cooking time is too long, the gas will be caused. The condition of dry burning of the furnace is likely to cause a risk of gas explosion.

Furthermore, water heaters using natural gas use gas as a source of combustion. However, many users prefer to close doors and windows when the weather is cold, and perform shower operations in a sealed bathroom space. Therefore, when the carbon monoxide generated by the gas is not completely burned or the gas is leaked from the gas pipeline, the user may be at risk of poisoning.

Accordingly, how to provide a gas safety control device and carbon monoxide and Gas leak detectors have become an issue that needs to be overcome.

In view of the above, the present invention provides a safety timing control device for a gas appliance. By timing the timer, after the gas appliance reaches a predetermined use time, the power of the safety timing control device is turned off to block the gas pipeline of the gas appliance, thereby avoiding continuous supply of gas. To the source of the fire.

The invention discloses a safety timing control device for a gas appliance, comprising a first timing controller, a second timing controller, a power converter, an electromagnetic switch and an alarm unit. The electromagnetic switch includes an electromagnet, a connecting rod, a return spring, a casing and a valve plug, the casing is connected to one of the openings of the gas passage, the valve plug is disposed in the gas passage, the first end of the connecting rod passes through the casing and The valve plug is connected to the first end of the connecting rod and disposed in the housing, and the second end of the connecting rod is actuated by a magnetic force generated by the electromagnet. The first timing controller times the predetermined usage time of the gas appliance and is electrically connected to a power supply unit. The second timing controller is electrically connected to the electromagnetic switch to time the energization time of the electromagnetic switch. The power converter is electrically connected to the first timing controller and the second timing controller to convert the power provided by the power supply unit from the first timing controller to the second timing controller. The warning unit is electrically connected to the first timing controller, and after the gas appliance reaches the predetermined use time, the first timing controller controls the warning unit to generate an alarm signal, wherein the electromagnetic switch is energized during the predetermined use time, and the electromagnet is Generating a magnetic force that overcomes the restoring force of the return spring to adsorb the second end of the connecting rod to open the gas passage. When the first timing controller reaches the predetermined use time, the first timing controller is disconnected from the power supply unit. Keep the electromagnetic switch off In the electrical state, the magnetic force of the electromagnet disappears, and the valve plug closes the gas passage by the restoring force of the return spring.

In addition, the safety timing control device of the gas appliance of the present invention further comprises a carbon monoxide and gas leak detector electrically connected to the first timing controller, and the carbon monoxide and gas leak detector senses leakage to the gas. When the gas or gas combustion outside the channel does not completely produce a carbon oxide concentration exceeding a predetermined value, an electrical signal is generated to the first timing controller, so that the first timing controller is disconnected from the power supply unit. And form a path with the warning unit to issue a warning signal.

In summary, the safety timing control device of the gas appliance of the present invention can be applied to the home environment of a general user, and facilitates the convenience of both elderly and young users by using a simple timer interface. Quickly and easily set the time that the gas appliance is to be opened to avoid the danger of the gas appliance continuously providing gas to the fire source, or avoiding the risk of carbon monoxide poisoning caused by the incomplete combustion of the gas appliance.

1‧‧‧Safety timing control device for gas appliances

T1‧‧‧First timing controller

T2‧‧‧Second timing controller

T3‧‧‧ third timing controller

M‧‧‧Electromagnetic switch

M1‧‧‧ valve plug

M2‧‧‧ electromagnet

M3‧‧‧Return spring

M4‧‧‧shell

M5‧‧‧ connecting rod

M51‧‧‧ first end

M52‧‧‧ second end

B‧‧‧Warning unit

C‧‧‧Power Converter

V‧‧‧Power supply unit

I1‧‧‧First current

I2‧‧‧second current

L1‧‧‧ first coil

L2‧‧‧second coil

S‧‧‧carbon monoxide and gas leak detector

Fig. 1 is a schematic view showing the state before power-on of the safety timing control device for the gas appliance of the present invention.

Fig. 2 is a schematic view showing the initial state of energization of the safety timing control device for the gas appliance of the present invention.

Fig. 3 is a schematic view showing the state of use of the safety timing control device for the gas appliance of the present invention.

Figure 4 is a schematic view showing the safe timing control device of the gas appliance of the present invention reaching a predetermined use time.

Fig. 5 is a schematic view showing the implementation of a third timing controller of the safety timing control device for the gas appliance of the present invention.

6A and 6B are diagrams showing the operation of the carbon monoxide and gas leak detectors of the safety timing control device for the gas appliance of the present invention.

Some embodiments of the invention are described in detail below. However, the present invention may be widely practiced in other embodiments than the following description, and the scope of the present invention is not limited by the examples, which are subject to the scope of the following patents. Furthermore, in order to provide a clearer description and a better understanding of the present invention, the various components in the drawings are not drawn according to their relative dimensions; the irrelevant details are not fully drawn to simplify the drawings.

Please refer to FIG. 1 , which is a schematic diagram of the state before power-on of the safety timing control device for the gas appliance of the present invention. The safety timing control device 1 of the gas appliance of the present invention comprises a first timing controller T1, a second timing controller T2, an electromagnetic switch M, a power converter C and a warning unit B. The electromagnetic switch M includes a valve plug M1, an electromagnet M2, a return force spring M3, a housing M4 and a connecting rod M5. The housing M4 is connected to an opening of the gas passage G. The valve plug M1 is disposed in the gas passage G. The first end M51 of the rod M5 is disposed in the housing M4 and is connected to the valve plug M1. The return spring M3 is disposed at the first end M51 of the connecting rod M5 and disposed in the housing M4. The connecting rod M5 The second end M52 is actuated by the magnetic force generated by the electromagnet M2. The first timing controller T1 counts the predetermined use time of the gas appliance and is electrically connected to a power supply unit V. The second timing controller T2 is electrically connected to the electromagnetic switch M to time 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 to convert the power provided by the power supply unit V from the first timing controller T1 to the second timing controller T2. . The warning unit B is electrically connected to the first timing controller T1, and the first timing controller T1 controls the warning unit B to generate an alarm signal after the gas appliance reaches the predetermined usage time.

Wherein, the electromagnetic switch M is energized for a predetermined period of use, and the electromagnet M2 generates a magnetic force that can overcome the restoring force of the return spring M3 to adsorb the second end M52 of the connecting rod M5, so that the gas channel G is opened, when the first When the timing controller T1 reaches the predetermined use time, the first timing controller T1 is disconnected from the power supply unit V, so that the electromagnetic switch M is in the power-off state, and the magnetic force of the electromagnet M2 disappears, the valve plug M1 The gas passage G is closed by the restoring force of the return spring M3. Further, the electromagnet M2 has a groove inside, and when the electromagnetic switch M is in the energized state, the magnetic force generated by the electromagnet M2 causes the link M5 to move toward the inside of the groove, so that the valve plug M1 of the connecting link M5 moves accordingly. In order to open the gas channel G; when the electromagnetic switch M is in the power-off state, the link M5 moves toward the outside of the groove, so that the valve plug M1 of the connecting link M5 moves accordingly, thereby closing the gas channel G.

As described above, the safety timing control device 1 of the gas appliance of the present invention can be applied to a gas appliance such as a gas stove or a water heater, and when the user uses the gas appliance, it can be preset according to the time to be used. For example, when the user uses the gas stove to cook food, the first timing controller T1 can set the time when the gas stove is turned on, that is, the time for setting the gas stove to cook the food. Similarly, the safety timing control device 1 of the gas appliance of the present invention can be applied in a water heater and can be used according to the time when the user wants to use the water heater. set up. In the embodiment of the present invention, the first timing controller T1 is a digital keyboard interface, and the timing is arbitrarily set without a segment, and the longest timing setting time is 90 minutes.

Please refer to FIG. 2, FIG. 3 and FIG. 4, which are schematic diagrams showing the initial state of energization of the safety timing control device for the gas appliance of the present invention, a schematic diagram of the state in use, and a schematic diagram of the scheduled use time. The present invention further controls the opening and closing of the gas passage G by the electromagnet M2 which can generate a magnetic force after the current is passed. The principle is that the electromagnet M2 is a non-permanent magnet, and the electromagnet M2 has a magnetic force when energized, and has no magnetic force after the power is turned off. Therefore, the first timing controller of the safety timing control device 1 is controlled by the gas appliance. When the power supply unit V is electrically connected to the power supply unit V, the electromagnet M2 generates a magnetic force that can overcome the restoring force of the return force spring M3, and the connecting rod M5 is attracted. Since the first end M51 of the connecting rod M5 is connected to the valve plug M1, When the connecting rod M5 is sucked up, the valve plug M1 is adsorbed up along the connecting rod M5, thereby opening the gas passage G, and in the power-off state, the magnetic force of the electromagnet M2 disappears, by the return spring M3 The restoring force pushes the valve plug M1 to a position where the gas passage G is closed, wherein the connecting rod M5 includes a material that can be magnetically adsorbed to be adsorbed when the electromagnet M2 is energized to generate a magnetic force. In addition, in the embodiment of the present invention, the connecting rod M5 is disposed within the sensing range of the magnetic force when the electromagnet M2 is energized, so that the connecting rod M5 can be adsorbed by the magnetic force.

As described above, when the first timing controller T1 of the safety timing control device 1 of the gas appliance is turned on and starts counting, the power generated by the power supply unit V is converted to the second timing controller T2 by the power converter C. And transmitting power to the electromagnet M2 of the electromagnetic switch M through the second timing controller T2. Next, the second timing controller T2 counts the energization time of the electromagnetic switch M, and selects the energized coil according to the energization time. Enter In one step, the safety timing control device 1 of the gas appliance includes a first coil L1 and a second coil L2, and the electromagnet M2 is sleeved, and the second timing controller T2 is electrically connected according to the energization time of the electromagnetic switch M. The first coil L1 or the second coil L2. For example, in one embodiment of the present invention, the second timing controller T2 is electrically connected to the circuit having the first coil L1 to provide 300 mA in the energization time of 2 to 3 seconds (in FIG. 2 The first current I1 of I1) to the electromagnet M2 causes it to generate a large magnetic attraction force to overcome the restoring force of the return force spring M3. After the energization time of 2 to 3 seconds, since the electromagnet M2 has overcome the restoring force of the return force spring M3, the second timing controller T2 is disconnected from the circuit of the first coil L1, and is replaced by electricity. The circuit having the second coil L2 is connected to provide a second current I2 of 160 mA (I2 in FIG. 3) to the electromagnet M2, that is, the second current I2 is provided to be smaller than the first current I1. The safety timing control device 1 of the inventive gas appliance can further reduce the load current by about 50%, so as to avoid the energized coil being burnt by the excessive supply current under long-term use. In addition, the wire diameter and the elasticity number of the return spring M3 can be selected according to the magnitude of the first current I1 to further control the speed at which the valve plug M1 opens the gas passage G. In one embodiment of the present invention, a return force spring M3 of 0.6 mm wire diameter can be selected according to the first current I1 of 300 mA.

Taking the gas stove as an example, when the scheduled closing time is reached, it indicates that the time for the food to be cooked has arrived, thereby automatically closing the gas passage G of the gas furnace, so as to avoid the danger that the gas furnace continues to provide gas to the fire source and explode. Similarly, when the water heater used by the user reaches the scheduled use time, it indicates that the user has used the water heater, thereby automatically closing the gas passage G of the gas furnace, so as to avoid the risk that the water heater does not completely burn the gas and cause carbon monoxide poisoning.

It should be noted that the warning unit B is electrically connected to the power supply unit V by the first timing controller T1, that is, when the first timing controller T1 does not reach the predetermined usage time, the warning unit B is The power supply unit V is in an open state; when the first timing controller T1 reaches a predetermined usage time, the warning unit B is electrically connected to the power supply unit V by the first timing controller T1 to generate an alert signal.

Please refer to FIG. 5, which is a schematic diagram of the implementation of the third timing control device of the safety timing control device for the gas appliance of the present invention. The safety timing control device 1 of the gas appliance of the present invention further includes a third timing controller T3 for timing the warning time of the warning unit B and electrically connecting the first timing controller T1 and the warning unit B. The warning unit B alerts the time to 5 to 10 seconds, thereby notifying the user that the gas channel G of the gas appliance is turned off. After the gas appliance reaches the predetermined use time, the first timing controller T1 is switched to electrically connect to the third timing controller T3, so that the third timing controller T3 is further electrically connected to the power supply unit V, and the warning unit B is When the warning time arrives, the third timing controller T3 disconnects the electrical connection between the warning unit B and the first timing controller T1.

Furthermore, in an embodiment of the present invention, the warning unit B includes a buzzer or a warning light, and the sound of the sound can be fixed, or the progressive type is small to large, and the warning light includes an LED such as an LED. . In addition, the first timing controller T1, the second timing controller T2, and the third timing controller T3 of the present invention are time relays.

In addition, the safety timing control device 1 of the gas appliance of the present invention not only has the function of counting the predetermined use time of the gas appliance, but also includes the function of detecting whether the gas appliance leaks gas or gas combustion does not completely produce carbon monoxide. Please refer to Figures 6A and 6B together for the carbon monoxide and gas of the safety timing control device of the gas appliance of the present invention. A schematic diagram of the operation of the leak detector. The carbon monoxide and gas leak detector S is electrically connected to the first timing controller T1. When the carbon monoxide and gas leak detector S detects gas leakage to the gas channel G or the gas combustion is incomplete, a concentration of carbon monoxide is generated. When the preset value is exceeded, an electrical signal is generated to the first timing controller T1, so that the first timing controller T1 is disconnected from the power supply unit V, so that the power converter C cannot pass the power supply. The first timing controller T1 switches the power supplied from the power supply unit V from the first timing controller T1 to the second timing controller T2, thereby making power unavailable to the electromagnet M2. When the electromagnet M2 is not energized, the magnetic force of the electromagnet M2 disappears, and the valve plug M1 closes the gas passage G by the restoring force of the return spring M3, thereby preventing the gas appliance from continuously supplying gas to the fire source. After the first timing controller T1 is disconnected from the power supply unit V, it is electrically connected to the warning unit B. In an embodiment of the present invention, the preset value of the carbon monoxide or gas concentration may be set to a standard value set by each country, or the preset value may be set according to the user. In addition, the carbon monoxide and gas leakage detector S of the present invention can be integrated into the safety timing control device of the gas appliance or electrically connected to the safety timing control device of the external gas appliance.

In the embodiment of the present invention, the power supply unit V inputs an alternating current to the first timing controller T1, and is converted into a direct current input to the second timing controller T2 via the power converter C. The AC power input to the power supply unit V varies depending on the voltage supply of each country. For example, when the safety timing control device 1 of the gas appliance of the present invention is used in Taiwan, the power supply unit V inputs an alternating current of 110 volts, and the power converter C converts the AC 110 volt alternating current into a DC 12 volt direct current input to the The second timing controller T2. When using the safety timing control device 1 of the gas appliance of the present invention in the mainland region, The AC input from the power supply unit V is AC 220 volts, and the AC converter converts AC 220 volt AC power into DC 12 volt DC power input to the second timing controller T2. Further, in an embodiment of the present invention, the power converter C includes an electric appliance of a convertible power source such as a transformer.

In summary, the safety timing control device of the gas appliance of the present invention can be applied to the home environment of a general user, and facilitates the convenience of both elderly and young users by using a simple timer interface. Quickly and easily set the time that the gas appliance is to be opened to avoid the danger of the gas appliance continuously providing gas to the fire source, or to avoid the risk of carbon monoxide poisoning caused by the incomplete gas burning of the gas appliance.

In addition, the safety timing control device of the gas appliance of the present invention can be installed on any type of gas appliance, for example, a gas heater for gas transmission gas or a gas furnace for liquefied barrel gas can be easily installed and set, and only needs to be installed. Fixing a gas hose at a proper position on the gas appliance, connecting the gas hose to the safety timing control device of the gas appliance, and electrically connecting the power source, the safety timing control device of the gas appliance can be made working normally. In the operation of the safety timing control device of the gas appliance, since it only opens and closes the passage of the gas control device by timing, the original function of the gas appliance is not affected, and therefore, the gas appliance can still be operated according to its original operation. By way of operation, the safety timing control device of the gas appliance of the present invention can be applied to various gas appliances more widely and conveniently.

1‧‧‧Safety timing control device for gas appliances

T1‧‧‧First timing controller

T2‧‧‧Second timing controller

M‧‧‧Electromagnetic switch

M1‧‧‧ valve plug

M2‧‧‧ electromagnet

M3‧‧‧Return spring

M4‧‧‧shell

M5‧‧‧ connecting rod

M51‧‧‧ first end

M52‧‧‧ second end

B‧‧‧Warning unit

C‧‧‧Power Converter

V‧‧‧Power supply unit

L1‧‧‧ first coil

L2‧‧‧second coil

G‧‧‧ Gas Channel

Claims (10)

A safety timing control device for a gas appliance comprises: an electromagnetic switch comprising an electromagnet, a connecting rod, a return spring, a casing and a valve plug, the casing connecting one of the openings of the gas passage, the valve plug being disposed in the gas passage The first end of the connecting rod is connected to the housing and is connected to the valve plug. The return spring ring is disposed at the first end of the connecting rod and disposed in the housing. The second end of the connecting rod is according to the electromagnet The magnetic timing is generated; the first timing controller is a predetermined use time of the chronograph gas appliance, and is electrically connected to a power supply unit; the second timing controller is electrically connected to the electromagnetic switch to time the electromagnetic switch a power converter electrically connecting the first timing controller and the second timing controller to convert power provided by the power supply unit from the first timing controller to the second timing controller; and alerting The first timing controller is electrically connected to the first timing controller, and the first timing controller controls the warning unit to generate an alarm signal after the gas appliance reaches the predetermined use time; wherein the electromagnetic switch is The predetermined use time is an energized state, and the electromagnet generates a magnetic force that can overcome the restoring force of the return force spring to adsorb the second end of the connecting rod to open the gas passage when the first timing controller reaches the predetermined use. In time, the first timing controller is disconnected from the power supply unit, the electromagnetic switch is in a power-off state, the magnetic force of the electromagnet disappears, and the valve plug closes the gas by the restoring force of the return spring. aisle. A safety timing control device for a gas appliance as described in claim 1 of the patent application, wherein the company The rod includes a material that can be magnetically adsorbed. The safety timing control device for a gas appliance according to claim 1, further comprising a first coil and a second coil, the electromagnet is sleeved, and the second timing controller is electrically connected according to the energization time of the electromagnetic switch. Connecting the first coil or the second coil, wherein when the electromagnetic switch is energized for 3 seconds, the second timing controller is electrically connected to the first coil, and the energization time of the electromagnetic switch is exceeded for 3 seconds. Thereafter, the second timing controller is electrically connected to the second coil. The safety timing control device for a gas appliance according to claim 3, wherein the first current flowing through the first coil is greater than the second current flowing through the second coil. The safety timing control device for the gas appliance of claim 1, further comprising a third timing controller for timing the warning time of the warning signal and electrically connecting the first timing controller and the warning unit. The safety timing control device for a gas appliance according to claim 1, wherein the power supply unit inputs an alternating current to the first timing controller, and converts the direct current input to the second timing controller via the power converter. . The safety timing control device for a gas appliance according to claim 1, wherein the power converter comprises a transformer. The safety timing control device for a gas appliance according to claim 1, wherein the warning unit comprises a buzzer or a warning light. The safety timing control device for the gas appliance according to claim 1 further includes a carbon monoxide and gas leak detector electrically connected to the first timing controller, when the carbon monoxide and gas leak detector senses When the gas or gas combustion leaking outside the gas passage does not completely produce a carbon oxide concentration exceeding a predetermined value, an electrical signal is generated to the first timing controller to disconnect the first timing controller from the power supply. Unit Electrically connected and forming a path with the warning unit. The safety timing control device for a gas appliance according to claim 5, wherein the first timing controller, the second timing controller, and the third timing controller are time relays.