TWM452319U - External detecting apparatus - Google Patents

Description

External detection device

The present invention relates to an external type detecting device, and more particularly to an external gas detecting device for detecting an external gas water heater and detecting the gas concentration or the ambient temperature in the environment.

There are many brands of gas water heaters on the market. In the process of using a gas water heater, the gas water heater itself emits exhaust gas, such as carbon monoxide (CO) or carbon dioxide (CO ₂ ), if the exhaust gas accidentally leaks into the room, or the gas used in the gas water heater. Inadvertent leakage, such as flammable gas methane (CH4) leaks into the room, while the flammable gas methane and harmful carbon monoxide in the environment are colorless and odorless, so once the concentration of gas in the environment exceeds the standard, it will increase people's life and property loss opportunities.

In addition, the combustible gas methane leaks into the room. If the concentration of flammable gas methane exceeds the standard, and people use the electric appliance or push the switch without knowing it, the spark generated by the electric appliance or switch will increase the fire or The chance of an explosion.

In addition, a general gas water heater is provided with a detection module, and the detection module is provided with a warning component such as an alarm, a warning light or a warning screen. However, the detection module is disposed on the main control substrate of the general gas water heater, whereby when the main control substrate of the general gas water heater fails, the detection module also fails, thereby increasing the chance of loss of life and property.

The present invention provides an external detection device for real-time monitoring of gas concentrations of flammable gas methane and harmful gases such as carbon monoxide in the environment. When the gas concentration in the environment exceeds the standard or the ambient temperature exceeds the standard, the external detection device is cut off to supply gas. Water heaters even output warning sounds or messages to enhance people's lives and property.

The present invention provides an external detection device suitable for a gas water heater, comprising: a power control module and a detection module. The power control module is coupled between a mains and a gas water heater. The detection module is coupled to the power control module. The detection module detecting environment generates an environmental parameter. When the environmental parameter exceeds a preset value of the detection module, the detection module generates a cutoff signal, and provides a cutoff signal to the power control module to cut off the power control module. Power to the gas water heater.

In an embodiment of the present invention, the power control module further includes a power control circuit, a first port, a second port, and an output port. The first port is coupled between the mains and the detection module. The second port is coupled between the detection module and the power control circuit. The output port is coupled between the first port and the power control circuit.

In an embodiment of the present invention, the power control circuit includes: a voltage source, a switch unit, and a control circuit. The switch unit is coupled between the first port, the second port and the output port. The control circuit is coupled between the switch unit and the second port.

In an embodiment of the present invention, the detecting module includes: a detecting unit, a control unit, and a detecting port. The detecting unit is configured to detect the gas concentration in the environment and the ambient temperature, and generate an environmental parameter. The control unit is coupled to the detecting unit and generates a cutoff signal or a power supply signal according to the environmental parameter. The detection port is coupled between the control unit and the power control module. The detecting unit detects the gas concentration or the ambient temperature in the environment, and generates an environmental parameter to the control unit, and the control unit determines whether the preset value is exceeded. If yes, the control unit generates the cutoff signal and outputs the cutoff signal to the power control module.

In an embodiment of the present invention, the detecting unit is a gas detecting component and At least one or a combination of temperature detecting elements.

In one embodiment of the present invention, the gas detecting element is configured to detect a gas concentration of methane and carbon monoxide, methane or carbon monoxide to generate the environmental parameter.

In an embodiment of the present invention, the temperature detecting component is configured to detect an ambient temperature to generate the environmental parameter.

In an embodiment of the present invention, the detection module further includes a warning component coupled to the control unit, the detection unit detects a gas concentration or an ambient temperature in the environment, and generates an environmental parameter to the control unit, and the control unit determines whether the pre-predicting is exceeded. Set the value, and if so, the control unit generates a warning signal and outputs a warning signal to the warning component to cause the warning component to output a warning sound or message.

In an embodiment of the present invention, the detecting unit detects a gas concentration or an ambient temperature in the environment, and generates an environmental parameter to the control unit, and the control unit determines whether the preset value is exceeded. If not, the control unit generates a power supply signal, and The power supply signal is output to the power control module, so that the power control module supplies power to the gas water heater.

In an embodiment of the present invention, when the power control module cuts off power supply to the gas water heater, the detection module continuously detects the environment to generate the environmental parameter.

In summary, the external detection device of the present invention detects the gas concentration of flammable gas methane and harmful gas carbon monoxide in the environment through the detection module, and generates an environmental parameter. When the environmental parameter exceeds a preset value, the detection module The output cutoff signal is sent to the power control module, so that the power control module cuts off the power supply to the gas water heater, and even the external detection device outputs a warning sound or message through the warning component, thereby improving the safety of people's lives and property.

The above and other objects, features and advantages of the present invention will become more apparent and understood.

In order to fully understand the present invention, the embodiments are described in detail below with reference to the accompanying drawings, and are not intended to limit the present invention.

FIG. 1 is a schematic diagram of an external connection detecting apparatus according to an embodiment of the present invention. Please refer to Figure 1. An external detection device 1 is applicable to a gas water heater 9 and includes a power control module 10 and a detection module 12. The external connection detecting device 1 of the present invention can be externally connected and installed in various types of gas water heaters 9. Of course, the external detecting device 1 can be disposed at a surrounding position of the gas water heater 9, or can be disposed, for example, in a bathroom, a kitchen or In the indoor space such as a bedroom, the embodiment does not limit the manner and position of the external detecting device 1.

In detail, the gas water heater 9 functions as a general gas water heater, and those having ordinary knowledge in the art should know the function of the gas water heater 9, which will not be described herein. The external detecting device 1 is disposed between the utility power 8 and the gas water heater 9, wherein the external detecting device 1 can operate independently, for example, when the gas leak in the kitchen or the natural gas leak in the pipeline, the external detecting device 1 passes through the detecting module 12 detecting the environment and generating an environmental parameter, for example, the gas concentration or the ambient temperature in the environment. When the environmental parameter exceeds a preset value, the external detecting device 1 passes through the power control module 10 to cut off the power supply. Gas water heater 9.

The power control module 10 has a power control circuit 100 coupled between a mains 8 and a gas water heater 9. In practice, the power control module 10 is used to turn on or off the power supply to the gas water heater 9. When the power control module 10 receives the power supply 8, the power control module 10 is powered by the power line to the detection module 12, and the detection module 12 is coupled to the power control module 10 via the signal line, whereby the detection module 12 can transmit the cutoff signal. Or the power supply signal is sent to the power control module 10. When the detection module 12 transmits the cutoff signal to the power control module 10, the power control circuit 100 will cut off the power supply to the gas water heater 9; when the detection module 12 transmits the power supply signal to the power control module 10, the power control circuit 100 will supply power to the gas water heater 9.

The power control circuit 100 is implemented, for example, by a combination of a power transistor, a field effect transistor, a bipolar transistor, a relay, or a switch, and the power control circuit 100 is used to turn on or off power to the gas water heater 9. Therefore, the power control circuit 100 receives the power supply signal of the detection module 12, whereby the power control circuit 100 is powered to the gas water heater 9; the power control circuit 100 receives the cutoff signal of the detection module 12, whereby the power control circuit 100 turns off the power supply. Gas water heater 9. This embodiment does not limit the aspect of the power supply control circuit 100. In addition, when the power control circuit 100 turns off the power supply to the gas water heater 9, the detection module 12 continues to detect the gas concentration or the ambient temperature in the environment.

The detection module 12 is coupled to the power control module 10. The detection module 12 detects the environment and generates environmental parameters. The environmental parameters are, for example, the gas concentration or the ambient temperature in the environment. When the environmental parameter exceeds a preset value of the detection module 12, the detection module 12 generates a cutoff signal and outputs a cutoff. The signal is supplied to the power control module 10 to cause the power control circuit 100 to turn off the power supply to the gas water heater 9.

In practice, the detection module 12 is, for example, at least one or a combination of a gas detector and a temperature detector. A gas detector is used to detect the gas concentration of methane and carbon monoxide, methane or carbon monoxide. A temperature detector is used to detect the ambient temperature. This embodiment does not limit the aspect of the detection module 12.

In detail, the detection module 12 has a preset value, for example, a concentration value of methane and carbon monoxide, methane or carbon monoxide, or a temperature value in the environment. The preset value can be designed according to the actual situation, and the general knowledge in the technical field can be freely designed as needed.

For example, when the detection module 12 detects that the methane concentration in the environment exceeds a preset value, the detection module 12 outputs a cutoff signal to the power control module 10, so that the power control circuit 100 turns off the power supply to the gas water heater 9. Of course, the detection module 12 can also detect the ring. When the concentration of the dual gas of methane and carbon monoxide exceeds the preset value, the detecting module 12 outputs the cutoff signal to the power control module 10, so that the power control circuit 100 turns off the power supply to the gas water heater 9.

In addition, when the detection module 12 detects that the environmental parameter generated by the environment is lower than the preset value, the detection module 12 generates a power supply signal, and outputs a power supply signal to the power control module 10, so that the power control circuit 100 supplies power to the gas water heater. 9. This embodiment does not limit the operation mode of the detection module 12.

Therefore, the external detection device 1 of the present invention detects the gas concentration of the combustible gas methane and the harmful gas carbon monoxide in the environment through the detection module 12, and the environmental parameter of the gas concentration or the ambient temperature exceeds a pre-condition in the environment. When the value is set, the detecting module 12 outputs the cutoff signal to the power control module 10, so that the power control circuit 100 cuts off the power supply to the gas water heater 9, thereby improving the safety of people's lives and property.

In order to more completely expose the circuit of the external detection device of the present invention. For example, FIG. 2 is a schematic diagram of an external connection detecting device according to another embodiment of the present invention. Please refer to Figure 2.

The external detection device 2 includes a power control module 20 and a detection module 22. The power control module 20 includes a power control circuit 200, a first port 202, a second port 204, and an output port 206. In practice, the first port 202 is coupled between the mains 8, the detection module 22, the power control circuit 200, and the second port 204. The second port 204 is coupled between the detection module 22 and the power control circuit 200. The output port 206 is coupled between the first port 202, the power control circuit 200, and the gas water heater 9. In addition, the first, second, and output ports 202, 204, and 206 are, for example, three pin connections, and the embodiment does not limit the first, second, and output ports 202, 204, 206.

The power control circuit 200 includes a voltage source VDD, a switching unit 2002, and a control circuit 2004. In practice, the voltage source VDD is, for example, an operating voltage of 12V, and the voltage source VDD is coupled to the second port 204 and the switching unit 2002. The switch unit 2002 is coupled between the first port 202, the second port 204, and the output port 206. The switching unit 2002 is realized, for example, by a switching switch, a relay or a transistor. The switch unit 2002 is configured to switch the power supply to the gas water heater 9 by turning on or off.

The control circuit 2004 is coupled between the switch unit 2002 and the second port 204. In practice, the control circuit 2004 is implemented, for example, by a power transistor, a field effect transistor, or a bipolar transistor. In this embodiment, the control circuit 2004 is composed of two bipolar transistors, wherein the pin of the second port 204 is coupled to the base of the second transistor Q2, and the emitter of the second transistor Q2 is coupled. The base of a transistor Q1, the collector of the second transistor Q2 is coupled to the collector of the first transistor Q1, and the emitter of the first transistor Q1 is grounded, as shown in FIG.

The detecting module 22 includes a detecting unit 220, a control unit 222 and a detecting port 224. In practice, the detecting unit 220 is configured to detect the gas concentration in the environment and the ambient temperature, and generate an environmental parameter. The detecting unit 220 is at least one or a combination of a gas detecting element and a temperature detecting element. The gas detecting element is used to detect the gas concentration of methane and carbon monoxide, methane or carbon monoxide. The temperature detecting element is used to detect the ambient temperature. This embodiment does not limit the aspect of the detecting unit 220.

The control unit 222 is coupled to the detecting unit 220 and generates a cutoff signal or a power supply signal according to the environmental parameter. In practice, the detecting unit 220 detects the gas concentration or the ambient temperature in the environment, and generates environmental parameters to the control unit 222. The control unit 222 determines whether the preset value is exceeded. If not, the control unit 222 generates a power supply signal and outputs the power supply. The signal is supplied to the power control module 20 to supply the power control circuit 200 to the gas water heater 9. On the contrary, if the control unit 222 determines that the environmental parameter exceeds the preset value, the control unit 222 generates a cutoff signal and outputs a cutoff signal to the power control module. 20. The power control circuit 200 is turned off to supply power to the gas water heater 9. This embodiment does not limit the operation mode of the control unit 222.

For example, the first port 202 of the power control module 20 is directly electrically connected to the power socket of the power source 8, and the detecting port 224 of the detecting module 22 is electrically connected to the second port 204 of the power control module 20, and The power connection port 92 of the gas water heater 9 is connected to the output port 206 of the power control module 20. Therefore, the detecting module 22 receives a mains 8 through the first port 202, and the detecting module 22 outputs a signal to the power control module 20 through the detecting port 224.

In detail, when the gas concentration or the ambient temperature in the environment is normal, the detection port 224 of the detection module 22 outputs a power supply signal: the pin P1 of the detection port 224 is, for example, 12V, and the pin of the connection port 224 is detected. P2 is, for example, equivalent grounding, and the street leg P3 of the detecting port 224 is, for example, equivalently grounded, whereby the switching unit 2002 will generate a voltage difference of 12V, for example, the switching unit 2002 of the relay will be turned on, so the first port 202 and the output The power lines N and L between the ports 206 will conduct, whereby the power control circuit 200 supplies power to the gas water heater 9.

When the gas concentration in the environment and the ambient temperature are abnormal, that is, the concentration of gas such as methane and carbon monoxide, methane or carbon monoxide exceeds a preset value, the detection port 224 of the detection module 22 correspondingly generates a voltage change, that is, the detection mode The detection port 224 of the group 22 outputs a cutoff signal: the pin P1 of the detecting port 224 is, for example, 12V, the pin P2 of the detecting port 224 is, for example, 12V, and the pin P3 of the detecting port 224 is, for example, an equivalent ground. Thereby, the second and first transistors Q2 and Q1 are respectively turned on, and the switching unit 2002 such as a relay is operated, and the switching unit 2002 turns off or turns off the power line L, so that the power line L is connected to a normally closed contact such as a relay. . Therefore, the power lines N and L of the first port 202 and the output port 206 will be turned off, whereby the power control circuit 200 turns off the power supply to the gas water heater 9.

In addition, when the gas concentration or ambient temperature in the environment returns to the normal state, check The output signal of the connection port 224 is also restored to the pin P1 of the detection port 224, for example, 12V, the pin P2 of the detection port 224 is, for example, equivalent ground, and the street leg P3 of the connection port 224 is, for example, equivalently grounded. Therefore, the switching unit 2002, which is, for example, a relay, is also reset, whereby the gas water heater 9 regains power. This embodiment does not limit the circuit aspect of the external type detecting device 2.

It is to be noted that in other embodiments, the detection module 22 further includes a warning component (not shown) coupled to the control unit 222. The detection unit 220 detects the gas concentration or the ambient temperature in the environment, and generates environmental parameters. The control unit 222 determines whether the preset value is exceeded. If yes, the control unit 222 generates an alert signal and outputs an alert signal to the alert component to cause the alert component to output a warning sound or message.

In practice, the warning component (not shown) is a component that outputs the judgment result to the human body in the form of a prompt or an alarm when the control unit 222 determines that the gas leakage in the environment or the ambient temperature exceeds a preset value. . The warning component (not shown) is, for example, a buzzer, an alarm, a speaker, a display, or an indicator light that can alert the outside world. This embodiment does not limit the aspect of the warning component (not shown).

In summary, the external detection device of the present invention detects the gas concentration of flammable gas methane and harmful gas carbon monoxide in the environment through the detection module, and generates an environmental parameter. When the environmental parameter exceeds a preset value, the detection module The output cutoff signal is sent to the power control module, so that the power control module cuts off the power supply to the gas water heater, and even the external detection device outputs a warning sound or message through the warning component, thereby improving the safety of people's lives and property.

Although the preferred embodiment of the present invention has been disclosed above, the present invention is not limited to the above-described embodiments, and any person having ordinary knowledge in the art can make some changes without departing from the scope of the present disclosure. Changes and adjustments, therefore the scope of protection of this creation shall be subject to the definition of the scope of the patent application attached.

1, 2‧‧‧ external detection device

8‧‧‧Power

9‧‧‧ gas water heater

92‧‧‧Power connection埠

10, 20‧‧‧ power control module

100, 200‧‧‧ power control circuit

202‧‧‧First connection埠

204‧‧‧Second connection

206‧‧‧Output port埠

VDD‧‧‧voltage source

2002‧‧‧Switch unit

2004‧‧‧Control circuit

12, 22‧‧‧ test module

220‧‧‧Detection unit

222‧‧‧Control unit

224‧‧‧Check connection埠

P1, P2, P3‧‧‧ pins

E, N, L‧‧‧ power lines

Q1‧‧‧First transistor

Q2‧‧‧Second transistor

FIG. 1 is a schematic diagram of an external connection detecting apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an external connection detecting apparatus according to another embodiment of the present invention.

1‧‧‧External testing device

8‧‧‧Power

9‧‧‧ gas water heater

10‧‧‧Power Control Module

100‧‧‧Power Control Circuit

12‧‧‧Test module

Claims (10)

An external detection device is applicable to a gas water heater, comprising: a power control module coupled between a mains and the gas water heater; and a detection module coupled to the power control module; wherein The detection module detecting environment generates an environmental parameter. When the environmental parameter exceeds a preset value of the detection module, the detection module generates a cutoff signal, and provides the cutoff signal to the power control module to enable the power supply. The control module cuts off power to the gas water heater. The external connection detecting device of claim 1, wherein the power control module further comprises: a power control circuit; a first port coupled between the mains and the detecting module; and a second The connection port is coupled between the detection module and the power control circuit; and an output port is coupled between the first port and the power control circuit. The external connection detecting device of claim 2, wherein the power control circuit comprises: a voltage source; a switch unit coupled between the first port, the second port, and the output port And a control circuit coupled between the switch unit and the second port. The external connection detecting device as described in claim 1, 2 or 3, wherein the detecting module comprises: a detecting unit for detecting a gas concentration and an ambient temperature in the environment, and generating the environmental parameter; a control unit coupled to the detecting unit and generating the cutoff signal or a power supply signal according to the environmental parameter; Detecting a connection between the control unit and the power control module; wherein the detection unit detects a gas concentration or an ambient temperature in the environment, and generates the environmental parameter to the control unit, the control unit determines whether the The preset value, if yes, the control unit generates the cutoff signal and outputs the cutoff signal to the power control module. The external connection detecting device according to claim 4, wherein the detecting unit is at least one or a combination of a gas detecting element and a temperature detecting element. The external connection detecting device according to claim 5, wherein the gas detecting element is configured to detect a gas concentration of methane and carbon monoxide, methane or carbon monoxide to generate the environmental parameter. The external connection detecting device according to claim 5, wherein the temperature detecting element is configured to detect an ambient temperature to generate the environmental parameter. The external connection detecting device of claim 4, wherein the detecting module further comprises a warning component coupled to the control unit, the detecting unit detecting a gas concentration or an ambient temperature in the environment, and generating the environmental parameter To the control unit, the control unit determines whether the preset value is exceeded. If yes, the control unit generates an alert signal and outputs the alert signal to the alert component to cause the alert component to output a warning sound or message. An external connection detecting device as described in claim 4, The detecting unit detects the gas concentration or the ambient temperature in the environment, and generates the environmental parameter to the control unit, the control unit determines whether the preset value is exceeded, and if not, the control unit generates the power supply signal, and outputs the The power supply signal is given to the power control module, so that the power control module supplies power to the gas water heater. The external connection detecting device according to claim 1, wherein the detecting module continuously detects the environment to generate the environmental parameter when the power control module cuts off power supply to the gas water heater.