TWI541049B - Fire Prevention Device and System Thereof - Google Patents

Description

Electric fire prevention device and system thereof

The utility model relates to an electric appliance fire prevention device and a system thereof, in particular to an electric appliance fire prevention device with a wireless transmission function.

Due to the development of technology, modern households cannot avoid using many household appliances. Depending on their characteristics, they may be used for a long time without being at home (such as dehumidifiers, air conditioners, etc.), even if they are not used, they may still be in standby (such as : TV, air conditioner, etc.), or automatically perform the opening and closing functions (such as: water dispensers, refrigerators, etc.) or must operate the equipment 24 hours (such as: security system, etc.). Because these devices are plugged in for a long time, and under normal operating conditions, there is no high temperature. Therefore, in order to save costs, manufacturers often do not design high-temperature interrupt protection in internal circuit design.

However, when power is abnormal, lightning strikes, or parts are faulty, it may cause the equipment to ignite and burn, and if the equipment is damaged, it may cause a fire, causing property damage or casualties.

Although there are some products in the workshop, it can be protected against high temperature. However, these products often only provide protection against abnormal temperature on the power outlet, but do not perform such actions on electrical appliances such as small household appliances, resulting in frequent incidents of accidental ignition of small household appliances.

In view of this, an embodiment of the present invention provides an electrical fire prevention device, including: a casing, a mains connection, a supply socket, and a temperature sensing circuit module. The casing includes a heat absorbing portion, and the heat absorbing portion is in thermal contact with the surface of an electric appliance having a power cord. The mains cable is partially exposed outside the casing to connect to the mains outlet. The supply socket is disposed on the outer surface of the casing, and is electrically connected to the mains connection line, and is connected to the power supply line of the power supply to supply the mains power to the electric appliance. The temperature-sensing circuit breaker is connected in series between the mains connection line and the supply socket, and is disposed adjacent to the heat absorption portion to sense the temperature of the object of the heat absorption portion and the power line. When the temperature of the object exceeds the set temperature range, the utility power connection is disconnected. The wire is electrically connected to the supply socket. In this way, the case can prevent the occurrence of fires in general electrical appliances, and even if accidents occur, the emergency can be handled.

Another embodiment of the present invention provides an electrical fire prevention system, comprising: an electrical fire prevention device and a control host. The electrical fire prevention device comprises: a casing, a mains connection, a supply socket, a temperature sensing circuit module, a controller and a wireless communication module. The housing includes a heat absorbing portion, and the heat absorbing portion is in thermal contact with the surface of an electric appliance having a power cord. The supply socket is disposed on the outer surface of the casing, and is electrically connected to the mains connection line, and is connected to the power supply line of the power supply to supply the mains power to the electric appliance. The temperature sensing circuit breaker is connected in series between the mains connection line and the supply socket, and is disposed adjacent to the heat absorption portion to sense the temperature of the object of the heat absorption portion and the power line, and disconnect the power connection when the temperature of the object exceeds a set temperature range. The wire is electrically connected to the supply socket. The controller is located in the housing and is electrically connected to the temperature sensing circuit breaker module. The temperature sensing circuit breaker module further comprises a temperature sensor and a circuit breaker, and the controller receives the temperature of the object sensed by the temperature sensor and exceeds the set temperature of the object. In the temperature range, the disconnect switch is disconnected from the electrical connection between the mains connection and the supply socket. The wireless communication module is located in the housing and electrically connected to the controller to output an abnormal message when the temperature of the object exceeds the set temperature range. The control panel is connected to the control center to send an alert to the control center when an abnormal message is received. Therefore, when a fire occurs, the controller can use the disconnect switch to disconnect the electrical connection between the mains cable and the supply socket, and the control host can receive the abnormal message transmitted by the wireless communication module, and transmit an alarm to the control center to facilitate the relevant personnel. Subsequent strain processing is performed.

In summary, the electrical fire prevention device according to the embodiment of the present invention can be directly attached to an electrical product to detect whether the electrical product generates high temperature, and on the other hand, can detect whether the electrical power source of the electrical product is generated. High temperature (if a wire fires), the effect of double detection is achieved. In addition, an alarm can be transmitted when high temperatures are detected.

Please refer to FIG. 1 to FIG. 4 , which are respectively a schematic diagram of an internal structure (1), a perspective view, a state of use, and an internal structure diagram (2) of an electric fire prevention device according to a first embodiment of the present invention. As shown in FIG. 1 , the electrical fire prevention device 1 of the present embodiment includes a casing 10 , a controller 11 , a mains connection 12 , a supply socket 13 and a temperature sensing circuit module 14 . One end of the mains connection 12 is connected to the mains plug 121.

The housing 10 includes a heat absorbing portion 101 that contacts any of the outer surfaces of the electric device 4 having the power cord 41. The electric appliance 4 includes a mains connection power cord 41 and an electrical plug 42. The heat of the surface of the electric appliance 4 can transfer thermal energy to the heat absorbing portion 101 by surface contact heat conduction. The mains connection 12 is partially exposed outside the casing 10 and electrically connected to the mains plug 121, and is connected through the mains plug 121 to connect a mains socket 5 having a wireless transmission and reception function. The supply socket 13 is disposed on the outer surface of the casing 10 and can be electrically connected to the mains connection line 12. When the electrical plug 42 of the electric appliance 4 is plugged into the supply socket 13, the commercial power source can transmit power to the electric fire prevention device 1 via the mains plug 121 connected to the mains outlet 5 and via the mains connection 12. Power is then transmitted to the appliance 4 through the power line 41 to enable the appliance 4 to operate using the power.

The temperature sensing circuit module 14 includes a temperature sensor 141 and a circuit breaker 142, and the temperature sensing circuit module 14 is connected in series between the mains connection line 12 and the supply socket 13, and is disposed adjacent to the heat absorption portion 101, so that The temperature of the object of either the heat absorbing portion 101 and the power source line 41 is sensed, whereby the phenomenon that the electric appliance 4 emits a high temperature or the power line is ignited can be detected. The controller 11 is located in the housing 10 and electrically connected to the temperature sensing circuit module 14. The controller can be a microprocessor or an ASIC chip module. The temperature sensor 141 senses the temperature of the object of any one of the heat absorbing portion 101 and the power source line 41. The temperature sensor 141 transmits the sensed object temperature to the controller 11, and the controller 11 is connected to the heat absorbing portion 101 and the power source line 41. When the temperature of any object exceeds a predetermined temperature range, the signal is sent to the disconnect switch 142, and the disconnect switch 142 is disconnected from the electrical connection between the mains connection 12 and the supply socket 13, so that the electrical fire prevention device 1 is no longer conductive. Therefore, the temperature of the electric appliance fire prevention device 1 and the electric appliance 4 can be prevented from rising.

In addition, the controller 11, the supply socket 13 and the temperature sensing circuit module 14 of the electrical fire prevention device 1 are all located in the casing 10, so that the volume of the electrical fire prevention device 1 can be effectively reduced, and the operation of the electrical fire prevention device 1 can be improved. Convenience.

In some embodiments, the supply socket 13 may not be disposed in the housing 10 and connected to the housing 10 through the mains connection 12 as shown in FIG. Through this design, the supply socket 13 can be extended to a greater extent, which greatly increases the ease of use of the electrical fire prevention device 1.

The electrical fire prevention device 1 also includes a control interface 18, an alarm 19, an indicator light 15 and an adhesive patch 7. The control interface 18 is electrically connected to the controller 11, which can be a touch screen or a manipulation switch for the user to manually adjust the aforementioned temperature range value. When the temperature sensor 141 detects that the temperature of the object exceeds a predetermined temperature range, the temperature sensor 141 will transmit a message to the controller 11. Since the alarm 19 is electrically connected to the controller 11, after the alarm 19 receives the message from the controller 11, the alarm 19 will emit a sound, producing a warning effect.

The indicator light 15 is electrically connected between the mains connection line 12 and the supply socket 13, and the controller 11 can control the indicator light 15 to emit light. When the temperature sensor 141 detects that the change of the temperature of the object exceeds a predetermined temperature range, the controller 11 emits a light to the driving indicator lamp 15, and the relevant person can judge by this to perform emergency strain processing.

The adhesive patch 7 is disposed on one side of the heat absorbing portion 101 of the casing 10. The adhesive body of the adhesive patch 7 allows the casing 10 of the electrical fire prevention device 1 to adhere to the surface of the electric appliance 4. By the bonding design of the adhesive patch 7, the degree of fit between the electrical fire prevention device 1 and the electric appliance 4 is increased, so that the electrical fire prevention device 1 can be firmly placed on the surface of the electric appliance 4. Due to the firmness of the electrical fire prevention device 1 and the electric appliance 4, the heat conduction effect can be increased, and the temperature sensor 141 can be accurately measured to accurately measure the surface temperature of the electric appliance 4.

Next, please refer to FIG. 5, which is a schematic diagram of an electrical fire prevention system according to a second embodiment of the present invention. The same components and structures as those in the first embodiment will be denoted by the same reference numerals and will not be described again. This embodiment differs from the first embodiment in that a control host 3 is added in addition to an electrical fire prevention device 1.

The electrical fire prevention device 1 further includes a wireless communication module 16 and a wireless sensor 17. The wireless communication module 16 is located in the housing 10 and is electrically connected to the controller 11. When the temperature sensor 141 detects that an object temperature exceeds a preset temperature range, the controller 11 outputs a warning abnormality message to the control host 3 through the wireless communication module 16. The wireless sensor 17 can detect environmental parameters (such as temperature value in the air, carbon monoxide concentration, carbon dioxide concentration, airborne particle number, etc.), and transmit the detected environmental parameters to the wireless communication module 16 through wireless communication. . The controller 11 electrically connected to the wireless communication module 16 compares the detected environmental parameters, and if the preset range value is exceeded, the alarm 19 is driven to emit a sound or the indicator light 15 emits a light. The wireless sensor 17 can be a smoke detector, a carbon dioxide detector, a flame detector or a carbon monoxide detector, but the invention is not limited thereto, as long as the sensing data can be transmitted through wireless communication. The devices are all referred to as the wireless sensor 17 of the present invention. Here, the wireless communication method can be RF (Radio Wave), Zigbee, Bluetooth, UWB (Ultra wide band), Wi-Fi (Wireless Fidelity), NFC (Near Field Communication) ).

In some embodiments, when detecting a specific environmental parameter abnormality, the controller 11 may also cause the disconnecting switch 142 to open to cut off the power of the electric appliance 4. For example, the controller 11 detects that the environmental parameter transmitted by the smoke detector in the area where the electric appliance 4 is located is abnormal, which may be caused by the smoke emitted by the electric appliance 4, and if the power is not turned off in time, the situation may be worsened.

The alarm 19 is controlled by the controller 11 to emit different alarm sounds according to different environmental parameters detected by the wireless sensor 17, such as different sound frequencies, different voice contents, and the like. The indicator light 15 is also controlled by the controller 11 to emit different lights according to different environmental parameters detected by the wireless sensor 17, for example, visible light of different wavelengths (ie, different colors), visible light of different blinking modes, and the like. Through different lights, relevant personnel, especially the hearing impaired, will be able to judge and carry out different emergency response treatments.

The control host 3 is connected to the electrical fire prevention device 1, and is also connected to a control center 6, when the temperature sensor 141 detects that a predetermined temperature is exceeded, or the wireless sensor 17 detects an abnormal environmental parameter. The value, the related data will be transmitted to the controller 11, the controller 11 converts the related data into an abnormal message, and the controller 11 sends an abnormal message to the control host 3 through the wireless communication module 16 for judgment.

In some embodiments, the wireless sensor 17 can directly transmit the detected environmental parameter values to the control host 3 without passing through the controller 11, and the control host 3 can determine the environmental parameters. When the host 3 is controlled and an abnormality is sent, an alarm will be sent to the control center 6, and the relevant personnel will be notified to perform subsequent strain processing.

In addition, the commercial power outlet 5 has a function of wireless transmission and reception, and power supply for cutting off the commercial power. When the control host 3 receives the abnormal message from the wireless communication module 16 or the wireless sensor 17, the control host 3 can transmit a message to the commercial power outlet 5 so that it no longer supplies power to the electrical plug 42. By this power-off action, it is possible to prevent the appliance 4 or the power cord 41 from being overheated to prevent a fire.

The invention can detect whether the electrical product generates high temperature, and on the other hand, can detect whether the power source of the electrical product generates high temperature (such as a wire fire) to avoid a fire. In addition, the wireless sensor 17 can also be used to detect the environmental parameters in the air. When the environmental parameters in the air are abnormal, the electrical fire prevention device 1 can cut off the power of the electrical device and timely transmit it through the control host 3. Alert to Control Center 6 to prevent disasters from continuing to expand.

While the preferred embodiment of the invention has been described above, it is not intended to limit the invention, and it is obvious to those skilled in the art that the invention may be modified and modified without departing from the spirit and scope of the invention. The patent protection scope of the invention is subject to the definition of the scope of the patent application attached to the specification.

<TABLE border="1" borderColor="#000000" width="_0003"><TBODY><tr><td> 1 </td><td> Electrical fire prevention device</td></tr><tr ><td> 10 101 </td><td> Shell heat absorption </td></tr><tr><td> 11 </td><td> Controller </td></tr>< Tr><td> 12 </td><td> Mains connection line</td></tr><tr><td> 121 13 14 141 142 15 16 17 18 19 3 4 41 42 5 6 7 </td ><td> Mains plug supply socket temperature sensing circuit module temperature sensor disconnect switch indicator wireless communication module wireless sensor control interface alarm control host electrical power cord electrical plug mains socket control center adhesive patch</td> </tr></TBODY></TABLE>

[Fig. 1] Fig. 1 is a schematic view showing the internal structure of an electric fire prevention device according to a first embodiment of the present invention (1). [Fig. 2] Fig. 2 is a perspective view showing an electric fire prevention device according to a first embodiment of the present invention. [Fig. 3] Fig. 3 is a schematic view showing the state of use of the electric fire prevention device of the first embodiment of the present invention. [Fig. 4] Fig. 4 is a schematic view showing the internal structure of an electric fire prevention device according to a first embodiment of the present invention (2). [Fig. 5] Fig. 5 is a schematic view showing an electric fire prevention system of a second embodiment of the present invention.

<TABLE border="1" borderColor="#000000" width="_0004"><TBODY><tr><td> 1 </td><td> Electrical fire prevention device</td></tr><tr ><td> 10 101 </td><td> Shell heat absorption </td></tr><tr><td> 11 </td><td> Controller </td></tr>< Tr><td> 12 </td><td> Mains connection line</td></tr><tr><td> 121 13 14 141 142 15 16 17 18 19 7 </td><td> Mains plug Supply socket temperature sensing circuit module temperature sensor disconnect switch indicator wireless communication module wireless sensor control interface alarm sticker patch</td></tr></TBODY></TABLE>

Claims (9)

An electric appliance fire prevention device comprises: a casing comprising a heat absorbing portion, the heat absorbing portion comprising an adhesive patch for thermally contacting the heat absorbing portion to a surface of an electric appliance; the electric appliance having a power cord; a mains connection And partially exposed outside the casing to connect to a mains socket; a supply socket disposed on the outer surface of the casing and electrically connected to the mains connection line for the power cable of the electric appliance to be plugged to supply the mains power to the electric appliance And a temperature sensing circuit module connected in series between the utility power line and the supply socket, and disposed adjacent to the heat absorbing portion to sense an object temperature of the heat absorbing portion and the power line, wherein the temperature is sensed The circuit breaker module includes a temperature sensor and a circuit breaker, wherein the adhesive chip is used for the housing to adhere to the surface of the electrical device, and a surface temperature of the electrical device is transmitted to the heat absorption portion, so that the temperature sensor senses the The surface of the electrical device is measured by the heat absorbing portion, and when the temperature of the object exceeds a temperature range, the electrical connection between the mains connection and the supply socket is disconnected. The electrical fire prevention device of claim 1, further comprising: a controller located in the housing and electrically connected to the temperature sensing circuit breaker module, the temperature sensing circuit breaker module comprising the temperature sensor and the circuit breaker The controller receives the temperature of the object sensed by the temperature sensor, and when the temperature of the object exceeds the temperature range, causes the circuit breaker to disconnect the electrical connection between the mains connection and the supply socket. The electrical fire prevention device of claim 2, further comprising: a wireless communication module, located in the housing, and electrically connected to the controller to output an abnormal message when the temperature of the object exceeds the temperature range. The electrical fire prevention device according to claim 3, further comprising: A wireless sensor detects an environmental parameter and wirelessly transmits the environmental parameter to the wireless communication module. The electrical fire prevention device of claim 2, further comprising: an alarm, electrically connected to the controller, and outputting the frequency of the sound according to the temperature change of the object. The electrical fire prevention device of claim 1, further comprising: an indicator light electrically connected between the mains connection line and the supply socket, and changing the light of the indicator light according to the temperature of the object. An electrical fire prevention system includes: an electrical fire prevention device, comprising: a casing comprising a heat absorbing portion, the heat absorbing portion comprising an adhesive patch for thermally contacting the heat absorbing portion to a surface of an electrical appliance, the electrical appliance having a power cord; a mains cable, partially exposed outside the casing to connect to a mains socket; a supply socket disposed on the outer surface of the casing and electrically connected to the mains cable for the power cord of the appliance And supplying a mains power supply to the electric appliance; a temperature sensing circuit breaker module is connected between the mains connection cable and the supply socket, and is disposed adjacent to the heat absorption portion to sense the heat absorption portion and an object of the power supply line The temperature sensing circuit includes a temperature sensor and a circuit breaker, wherein the adhesive chip is used for the housing to adhere to the surface of the electrical device, and a surface temperature of the electrical device is transmitted to the heat absorption portion, so that The temperature sensor senses the heat absorbing portion to measure the surface temperature of the electrical device, and when the temperature of the object exceeds a temperature range, disconnects the electrical connection between the mains connection and the supply socket; a controller, located in the housing, and electrically connected to the temperature sensing circuit breaker module, the controller receiving the temperature of the object sensed by the temperature sensor, and causing the circuit breaker when the temperature of the object exceeds the temperature range Disconnecting the electrical connection between the mains connection and the supply socket; and a wireless communication module is located in the housing and electrically connected to the controller to output an abnormal message when the temperature of the object exceeds the temperature range; And a control host, connected to a control center to send an alert to the control center when receiving the abnormal message. The electrical fire prevention system of claim 7, further comprising: a wireless sensor, detecting an environmental parameter and wirelessly transmitting the environmental parameter to the wireless communication module. The electrical fire prevention system of claim 7, further comprising: a wireless sensor, detecting an environmental parameter and wirelessly transmitting the environmental parameter to the control host.