CN216903425U - Power line temperature detection protection device and temperature detection control device - Google Patents
Power line temperature detection protection device and temperature detection control device Download PDFInfo
- Publication number
- CN216903425U CN216903425U CN202123442580.4U CN202123442580U CN216903425U CN 216903425 U CN216903425 U CN 216903425U CN 202123442580 U CN202123442580 U CN 202123442580U CN 216903425 U CN216903425 U CN 216903425U
- Authority
- CN
- China
- Prior art keywords
- temperature
- signal
- detection control
- power
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model provides a power line temperature detection protection device and a temperature detection control device, wherein the power line temperature detection protection device comprises a power plug, an electric device, a power line and a temperature detection control device, the electric device comprises a load switch device, the power line comprises a live wire and a zero wire which are led out from the power plug and are respectively connected with the electric device, the temperature detection control device comprises a temperature sensing elastic sheet switch which is arranged on the power plug and is connected with the live wire or the zero wire, a signal detection control unit which is arranged on the electric device and a signal wire which is connected with the temperature sensing elastic sheet switch and the signal detection control unit, wherein the temperature change of the power plug is fed back through the temperature sensing elastic sheet switch, and the signal detection control unit controls the disconnection or connection of the load switch device of the electric device, and provides an alert response signal to the user.
Description
Technical Field
The present invention relates to a temperature protection device, and more particularly, to a power line temperature detection protection device and a temperature detection control device.
Background
Scientific progress and technology development, various electric appliances or electronic products gradually enter the lives of people and gradually become indispensable. The existing electric appliances or electronic products are connected with a power supply through a power line to obtain working electric energy. That is, the power cord is a wire connecting a power source and an electrical appliance or an electronic product. However, the power cord has been conventionally overheated in the early days to cause fire or other safety problems, that is, the power cord has not had a setting to secure safety of users and appliances. Nowadays, power cords used in high power electrical appliances must be provided with an overheat protection function to ensure the safety of users and electrical appliances. Further, when the temperature of the power line is too high, the power line is automatically disconnected to protect users and electric appliances, and when the temperature returns to normal, the power line is automatically switched on to facilitate the users to continue using, but the early traditional power line cannot meet the requirement.
In view of the problem that the conventional power cord is not provided with overheat protection in the early period, a prior case (CN211719903U) discloses a plug structure with a built-in thermal protector, wherein the disclosed technical scheme is a thermal protector which can be automatically switched off when the temperature of the circuit is too high and can be automatically switched on when the temperature is lower, the plug structure can play a good protection role and can be repeatedly used, the increase of the use cost of a user can be avoided, and the overall structure design of the plug structure is very reliable. However, the disadvantage of this is that the power supply line cannot feed back a signal to the load after a power failure, so that the load cannot react to it. That is, the plug structure provided with the thermal protector may be turned off or on according to a temperature change, but the electrical appliance connected to the plug may not be restored to the previous operation mode, and further feedback cannot be provided using the electrical appliance. However, nowadays, electrical devices, such as household electrical appliances, have higher and higher degree of intelligence, and these highly intelligent devices not only passively respond to external signals, but also actively analyze external signals and make corresponding response actions according to the analysis result, for example, when an external signal representing too high temperature is received, a relative response action such as an alarm can be performed. However, the power cord is not suitable for highly intelligent electrical equipment to achieve the above analysis and feedback response.
Disclosure of Invention
An advantage of the present invention is that it provides a power line temperature detection protection device and a temperature detection control apparatus, in which a power supply state of a corresponding load of a power consumer is controlled according to a temperature change of a power plug, and a warning response signal is provided. Furthermore, when the temperature of the power plug is too high, a load switch device of the electric equipment is disconnected, when the temperature of the power plug returns to normal, the load switch of the electric equipment is restarted, and corresponding warning response signals are provided when the load switch device of the electric equipment is disconnected and restarted.
Another advantage of the present invention is to provide a power line temperature detection protection device and a temperature detection control apparatus, wherein when the temperature of the power plug changes, a voltage signal is transmitted to the electric equipment through a signal line, and the electric equipment automatically analyzes and controls the disconnection or connection of a load switch device according to the voltage signal. In particular, after the load switch device of the electric equipment is disconnected from the circuit, a warning response signal, such as an alarm, a buzzer, a message, or the like, may be provided to the user, wherein the warning response signal may be provided to the electronic device designated by the user by means of wired or wireless (WiFi or bluetooth) remote transmission.
One advantage of the present invention is that it provides a power line temperature detection protection device and a temperature detection control apparatus, wherein the power consumption device has a configuration capable of actively analyzing a signal and making a corresponding response action according to an analysis result when the power consumption device is automatically powered off or powered on in accordance with a temperature change of the power plug.
Another advantage of the present invention is to provide a power line temperature detection protection device and a temperature detection control device, wherein when the power plug is overheated, the electrical equipment directly and automatically disconnects the load switch device thereof to ensure the safety of the user, and when the temperature of the power plug returns to normal, the electrical equipment directly and automatically connects the load switch device thereof electrically, wherein when the electrical equipment is activated, the warning response signal can be provided to the user or the user at the same time, so that the user can receive the corresponding message in real time.
Another advantage of the present invention is to provide a power line temperature detection protection device and a temperature detection control apparatus, wherein a temperature sensing dome switch disposed on the power plug can be turned off or on according to a temperature change of the power plug, and provides the related voltage signal to a signal detection control unit for further performing various subsequent preset response actions.
Another advantage of the present invention is that it provides a power line temperature detection protection device and a temperature detection control apparatus, wherein when the temperature of the power plug changes, the signal detection control unit provided to the electric device controls the electric device to perform various actions including disconnection or connection of the load switch device and provision of the warning response signal.
Another advantage of the present invention is that it provides a power line temperature detection protection device and method, wherein when the temperature of the power plug changes, the power plug is not powered off or turned on, but the power-using device is directly used to perform various actions. In other words, the signal detection control unit ensures that the power is obtained through a power circuit.
Another advantage of the present invention is that it provides a power line temperature detection protection device and method for transmitting the status of the electrical device to an absent user in a timely manner, so that a remote user can immediately know the power consumption of the electrical device, thereby reducing the risk of the temperature rise of the power line. Meanwhile, after the user receives the warning response signal, the user can further remotely control the electric equipment so as to increase the use convenience.
Another advantage of the present invention is that it provides a power line temperature sensing protection device that does not require precision parts and complex structures, is simple in manufacturing process, and is inexpensive.
Additional advantages and features of the utility model will be set forth in the detailed description which follows and in part will be apparent from the description, or may be learned by practice of the utility model as set forth hereinafter.
According to the present invention, the foregoing and other objects and advantages are achieved by the temperature detection protection apparatus for a power supply line of the present invention, comprising:
a power plug;
an electrically powered device;
the power line comprises a live wire and a zero wire which are led out from the power plug and is respectively connected to the electric equipment; and
the temperature detection control device comprises a temperature sensing elastic piece switch, a signal detection control unit and a signal wire, wherein the temperature sensing elastic piece switch is arranged on the power plug and connected with the live wire or the zero wire, the signal detection control unit is arranged on the electric equipment, the signal wire is connected with the temperature sensing elastic piece switch and the signal detection control unit, the temperature change of the power plug is fed back by the voltage or current change of the signal wire through the temperature sensing elastic piece switch, and the signal detection control unit provides a warning response signal based on the voltage or current change of the signal wire.
According to an embodiment of the present invention, a first end of the temperature-sensitive dome switch is connected to one end of the live wire, and a second end of the temperature-sensitive dome switch is connected to the signal line, wherein the temperature-sensitive dome switch provides an on state or an off state according to a temperature of the power plug, and the signal detection control unit provides the warning response signal to at least one designated electronic device after the voltage or current change of the signal line is fed back to the signal detection control unit.
According to an embodiment of the present invention, a first end of the temperature-sensing dome switch is connected to one end of the neutral line, and a second end of the temperature-sensing dome switch is connected to the signal line, wherein the temperature-sensing dome switch provides an on state or an off state according to the temperature of the power plug, and the signal detection control unit provides the warning response signal to at least one designated electronic device after the voltage or current change of the signal line is fed back to the signal detection control unit.
According to an embodiment of the present invention, the temperature sensing dome switch is implemented as a relay, which is turned on or off according to a temperature change.
According to an embodiment of the present invention, when the temperature of the power plug rises to a preset dangerous value, a spring of the temperature sensing spring switch is relatively expanded and disconnected, and the signal detection control unit provides the warning response signal based on the voltage drop of the signal line.
According to an embodiment of the present invention, when the temperature of the power plug returns to a normal operating temperature, the signal detection control unit provides the warning response signal based on the voltage increase of the signal line, relative to the cold shrinkage closing of a spring of the temperature sensing spring switch.
According to an embodiment of the present invention, the electric device includes a power circuit, a load switch device whose on/off state is controlled by the signal detection control unit, and at least one load which is powered and connected to the power circuit under the on/off control of the load switch device, wherein the power circuit is powered and connected to the power plug through the neutral wire and the live wire, and the signal detection control unit is powered and connected to the power circuit to control the power supply state of the load by controlling the load switch device to be disconnected or connected based on the voltage or current change of the signal wire.
According to another aspect of the present invention, there is further provided a temperature detection control device connected to a power plug and an electric device for sensing a temperature change of the power plug, comprising:
the temperature sensing elastic piece switch is arranged on the power plug, and the first end of the temperature sensing elastic piece switch is connected with a live wire or a zero wire of a power line so as to be disconnected or connected in cooperation with the temperature change of the power plug;
a signal detection control unit arranged on the electric equipment; and
the signal wire is connected between the second end of the temperature sensing elastic piece switch and the signal detection control unit, wherein the voltage or current change of the signal wire corresponds to the switching of the off state and the on state of the temperature sensing elastic piece switch and can feed back the temperature change of the power plug, and the signal detection control unit provides a warning response signal based on the voltage or current change of the signal wire.
According to an embodiment of the present invention, when the temperature of the power plug rises to a preset dangerous value, a spring of the temperature sensing spring switch is relatively expanded and disconnected, and the signal detection control unit provides the warning response signal based on the voltage drop of the signal line.
According to an embodiment of the present invention, when the temperature of the power plug returns to a normal operating temperature, the signal detection control unit provides the warning response signal based on the voltage increase of the signal line, relative to the cold shrinkage closing of a spring of the temperature sensing spring switch.
According to an embodiment of the present invention, the warning response signal is a control command for controlling the temperature detection control device to generate a corresponding warning action in response to the temperature variation information of the power plug, wherein the warning action is at least one of a sound warning, a light warning and transmitting a warning message to a designated electronic device.
Further objects and advantages of the utility model will be fully apparent from the ensuing description and drawings.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
Fig. 1A and 1B are schematic views of a power line temperature detection protection apparatus according to a first preferred embodiment of the present invention.
Fig. 2A and 2B are schematic views of a power line temperature detection protection apparatus according to a second preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present disclosure and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms above should not be construed as limiting the present disclosure.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Fig. 1A shows a power line temperature detection protection device, apparatus and method thereof according to a first preferred embodiment of the present invention, which has a power-off or power-on operation according to temperature, and actively analyzes external signals and sets a corresponding response operation according to the analysis result. The power line temperature detection protection device 1 comprises a power plug 10, a power consumption device 20 and a temperature detection control device 30. The power plug 10 is connected to the electric device 20. The temperature detection control device 30 is respectively connected between the power plug 10 and the electric equipment 20 to sense the temperature change of the power plug 10, the electric equipment 20 is disconnected from the electric connection in an overheat state, the electric equipment 20 is recovered to the electric connection in a normal state, and the temperature detection control device 30 can provide a warning response signal for a user, so that the safety of the user and the electric equipment in use is ensured, and the user can obtain the use condition of the electric equipment 20 in real time. In particular, the warning response signal may be an alarm or a buzzer, or may be a message or information, which may be transmitted to various electronic devices such as a mobile phone, an IPAD, or a computer of the user through a network, so that the user can immediately grasp the actual condition of the electric device 20, and even the user can remotely control the operation of the electric device 20. In addition, the overheat state indicates that the temperature of the power plug 10 rises to a preset dangerous value. The normal state indicates that the temperature of the power plug 10 returns to a normal operating temperature.
In the embodiment of the present invention, the power line temperature detection protection device 1 further includes a power line 40, which includes a live line L and a neutral line N. It is understood that the power line 40 may further include a ground line G. It should be noted that the power line 40 may not need to be provided with the ground line G, which is not a limitation of the present invention. The ground wire G, the live wire L and the zero wire N are respectively led out from the power plug 10 and connected to the electric equipment 20. In other words, the ground wire G, the live wire L, and the neutral wire N of the power line 40 respectively have two ends, one end of which is connected to the electric device 20, and the other end of which is connected to the power plug 10, and is connected to the outside through the power plug 10 to obtain power to the electric device 20. Specifically, the temperature detection control device 30 is connected to one end of the live wire L to sense the voltage value of the live wire L, so as to further determine the temperature of the power plug 10, and when the temperature rises to the preset dangerous value, the temperature detection control device 30 sends a stop control signal to stop the operation of the electric equipment 20 and provide the warning response signal, and when the temperature falls back to the working temperature, the temperature detection control device 30 is connected to send a start control signal to restart the operation of the electric equipment 20 and provide the warning response signal. In other words, after the temperature detection control device 30 receives the temperature message of the power plug 10, the temperature detection control device 30 determines and controls the disconnection or connection of the electric equipment 20, and correspondingly sends out the warning response signal, wherein the warning response signal is selectively sent to any electronic equipment specified by the user.
In the embodiment of the present invention, the electric device 20 includes an electric device body 21, a power circuit 22, a load switch device 23 and a load 24. The power supply circuit 22, the load switching device 23, and the load 24 are respectively provided to the electric appliance body 21. One end of the live line L and one end of the neutral line N of the power line 40 are respectively connected to the power circuit 22 of the electric device 20. The load switching device 23 is connected to the power supply circuit 22, the load 24, and the temperature detection control device 30, respectively. The temperature detection control device 30 is respectively connected to the load switch device 23, the live line L of the power line 40 and the power circuit 22, so as to further analyze and judge and control the load switch device 23 to be powered on or powered off after detecting the voltage value of the live line L, and at this time, the temperature detection control device 30 can also provide the warning response signal. It can be understood that the temperature detection control device 30 forms a loop with the live line L, so that the temperature detection control device 30 obtains the temperature variation of the power plug 10 and controls the disconnection or connection of the load switch device 23 to control the power supply state of at least one load 24 of the electric equipment 20, and the corresponding warning response signals are provided according to various states. In other words, the temperature detection control device 30 controls the on/off state of the load switch device 23 and the power supply state of the load 24 according to the information of the temperature variation of the power plug 10 and provides the corresponding warning response signal.
In the embodiment of the present invention, the temperature detection control device 30 includes a temperature sensing dome switch 31, a signal line 32 and a signal detection control unit 33. The first end 311 of the temperature-sensitive dome switch 31 is connected to the live wire L and is disposed in the power plug 10, and the signal line 32 is led out from the second end 312 of the temperature-sensitive dome switch 31 and extends to the signal detection control unit 33 through the power line 40. The signal line 32 is connected to the temperature sensing dome switch 31 and the signal detection control unit 33. In other words, the second end 312 of the temperature sensing dome switch 31 is connected to the signal detection control unit 33 through the signal line 32. The signal detection control unit 33 is connected to the power circuit 22 and the load switch device 23, and is disposed in the electric appliance body 21 of the electric equipment 20. When the temperature of the power plug 10 changes, the voltage value of the live wire L of the power line 40 will change, and the temperature-sensitive dome switch 31 will have an on state and an off state after sensing the change of voltage, and transmit the two states to the signal detection control unit 33 via the signal line 32, and then control the load switch device 23 of the electric equipment 20 to be disconnected or connected after being judged by the signal detection control unit 33. Specifically, the signal detection control unit 33 can also provide the warning response signal to the user, so that the user receives the relevant message in real time. The warning response signal can be implemented as an alarm, a buzzer or a message, wherein the warning response signal can be directly transmitted to various electronic devices designated by the user by using a wired or wireless (WiFi or bluetooth) remote transmission mode.
It should be noted that the signal detection control unit 33 can be implemented as a processor unit (e.g. MCU) and/or a communication unit of the electric device 20 itself. Furthermore, various modules of the electric equipment 20 can be used for corresponding responses, so that the cost is reduced, the electric equipment 20 can be better protected, richer intelligent control is realized, and the electric equipment is more convenient to use.
Further, when the temperature of the power plug 10 increases or decreases, the temperature-sensitive dome switch 31 is directly turned on or turned off after sensing the temperature change, and a voltage signal is formed in the case and transmitted to the signal detection control unit 33 through the signal line 32, and then the signal detection control unit 33 detects and receives the voltage signal to determine and send a control signal to control the switch device 23 to be turned off or connected. And, at the same time, the signal detection control unit 33 is used to send out the warning response signal. The warning response signal can be directly transmitted to an electronic device appointed by a user, so that the user can immediately obtain related information. In other words, when the temperature of the power plug 10 rises to the preset dangerous value, the temperature of the temperature sensing elastic switch 31 is relatively raised, and then the elastic piece 313 therein is expanded and disconnected, at this time, the signal detection control unit 33 detects the voltage signal of the expanded and disconnected elastic piece 313 through the signal line 32, and the signal detection control unit 33 sends out a stop control signal to control the switch device 23 of the electric equipment 20 to be closed, and simultaneously provides the warning response signal. When power plug 10's temperature returns to normal operating temperature, makes relatively temperature-sensing shrapnel switch 31's temperature follows to fall back to normal temperature, then will make the shrapnel 313 shrink closed wherein, at this moment signal detection the control unit 33 passes through signal line 32 detects and receives the shrapnel 313 shrink closed voltage signal, signal detection the control unit 33 analysis sends a start control signal after the judgement, with control consumer 20 switching device 23 opens, and provides simultaneously warning response signal.
In another variant, as shown in fig. 1B, the electric device 20 further includes an intelligent chip 25, which can directly replace the signal detection control unit 33, for controlling the load switch device 23 and providing the warning response signal. Alternatively, the intelligent chip 25 is connected to the signal detection control unit 33, wherein the intelligent chip 25 can be utilized to receive the control signal and then perform various subsequent responses, including controlling the load switch device 23 and providing the warning response signal. Particularly, when the electric device 20 has a sound generating/emitting/communication module, various modules can be directly used to perform corresponding response actions, so as to realize richer intelligent control. For example: after the smart chip 25 is connected to the signal of the signal detection control unit 33, the corresponding warning response signal can be directly sent to the designated electronic device, such as a mobile phone, an IPAD, a computer, etc.
In the embodiment of the present invention, the temperature sensing dome switch 31 may be implemented as a relay, which may be turned on or off as the temperature increases, or may be turned on or off as the temperature decreases. The temperature sensing elastic switch 31 is connected between the live wire L and the signal wire 32. The live line L forms a loop with the signal line 32. In this loop, the voltage value on the signal line 32 changes, i.e., the voltage increases with increasing temperature, or the voltage decreases with increasing temperature. The signal detection control unit 33 detects the voltage variation and performs corresponding actions according to the voltage variation.
In the embodiment of the present invention, the signal detection control unit 33 is disposed on the electric device 20 and connected to the temperature-sensitive dome switch 31 via the signal line 32 to form a loop between the signal line 32 and the live line L, wherein a voltage change of the signal line 32 is associated with a transition of the on-off state of the temperature sensitive dome switch 31, and the temperature change information of the power plug 10 can be fed back based on the electrical characteristics of the on-off state of the temperature sensing dome switch 31 changing with the temperature change, wherein the signal detection control unit 33 is configured to control the on-off state of the load switch device 23 based on a voltage change of the signal line 32, and to provide the warning response signal in response to the off state of the load switch device 23, so as to control the on-off state of the load switch device 23 and provide the warning response signal according to the temperature change information of the power plug 10.
Further, when all normal conditions exist, the temperature of the position of the power plug 10 belongs to a normal range, and at this time, a high level (voltage with a positive voltage value) is provided on the live wire L, and the temperature-sensitive dome switch 31 has two states of the on state and the off state, which causes voltages at two ends of the temperature-sensitive dome switch 31 to be different, where a first end is the end where the temperature-sensitive dome switch 31 is connected to the live wire L, and a second end is the end where the temperature-sensitive dome switch 31 is connected to the signal detection control unit 33, where the first end voltage and the second end voltage are the same, and at this time, the signal detection control unit 33 detects that a high level (high voltage) is received. However, when the temperature at the position of the power plug 10 rises, the temperature sensing dome switch 31 expands and turns off, and then the voltage difference between the first end and the second end of the temperature sensing dome switch 31 is large, and the signal detection control unit 33 detects a low level (low voltage), which indicates that the temperature of the power plug 10 is too high, and then the switch device 23 is further controlled to be powered off to protect the safety of the user or the electric appliance. In addition, when the temperature slowly drops and all the temperature returns to normal, the temperature sensing dome switch 31 is turned on in a shrinkage mode, and at this time, the signal detection control unit 33 detects that a high level (high voltage) is received, which indicates that the plug temperature is normal, and the switch device 23 is turned on again to continue to be used. It should be mentioned that, of course, the temperature sensing dome switch 31 may also be turned off when the temperature is normal, and turned on when the temperature rises, at this time, when the temperature is too high, the signal detection control unit 33 detects that a low level is received, and when the temperature returns to normal, the signal detection control unit 33 detects that a high level is received. This is not a limitation of the present invention.
Fig. 2A shows a power line temperature detection protection device, apparatus and method thereof according to a second preferred embodiment of the present invention, which has the functions of powering off or on according to the temperature, actively analyzing the external signal and setting the corresponding response according to the analysis result. The power line temperature detection protection device 1 comprises a power plug 10, a power consumption device 20 and a temperature detection control device 30. The power plug 10 is connected to the electric device 20. The temperature detection control device 30 is respectively connected between the power plug 10 and the electric equipment 20 to sense the temperature change of the power plug 10, the electric equipment 20 is disconnected from the electric connection in an overheat state, the electric equipment 20 is recovered to the electric connection in a normal state, and the temperature detection control device 30 can provide a warning response signal for a user, so that the safety of the user and the electric equipment in use is ensured, and the user can obtain the use condition of the electric equipment 20 in real time. In addition, the overheat state indicates that the temperature of the power plug 10 rises to a preset dangerous value. The normal state indicates that the temperature of the power plug 10 returns to a normal operating temperature.
In the embodiment of the present invention, the power line temperature detection protection device 1 further includes a power line 40, which includes a live line L and a neutral line N. It is understood that the power line 40 may also include a ground line G, and the ground line G is not required, which is not a limitation of the present invention. The ground wire G, the live wire L and the zero wire N are respectively led out from the power plug 10 and connected to the electric equipment 20. In other words, the ground wire G, the live wire L, and the zero wire N respectively have two ends, one end of which is connected to the electric device 20, and the other end of which is connected to the power plug 10, and is connected to the outside through the power plug 10 to obtain power to the electric device 20. Particularly, the temperature detection control device 30 is connected to one end of the zero line N to sense the voltage value of the zero line N, so as to further determine the temperature of the power plug 10, and when the temperature rises to the preset dangerous value, the temperature detection control device 30 sends a stop control signal to stop the operation of the electrical equipment 20 and provide the warning response signal, and when the temperature falls back to the working temperature, the temperature detection control device 30 is connected to send a start control signal to restart the operation of the electrical equipment 20 and provide the warning response signal.
In the embodiment of the present invention, the electric device 20 includes an electric device body 21, a power circuit 22, a load switch device 23 and a load 24. The power supply circuit 22, the load switching device 23, and the load 24 are respectively provided to the electric appliance body 21. One end of the live wire L and one end of the neutral wire N are respectively connected to the power circuit 22 of the electric device 20. The load switching device 23 is connected to the power supply circuit 22, the load 24, and the temperature detection control device 30, respectively. The temperature detection control device 30 is respectively connected to the load switch device 23, the zero line N and the power circuit 22, so as to further analyze, judge and control the load switch device 23 to be powered on or powered off after detecting the voltage value of the zero line N, and at this time, the temperature detection control device 30 can also provide the warning response signal. It can be understood that the temperature detection control device 30 and the neutral wire N form a loop, so that the temperature detection control device 30 obtains the temperature variation of the power plug 10, and controls the disconnection or connection of the load switch device 23 to control the power supply state of at least one load 24 of the electric equipment 20, and provides the corresponding warning response signal according to various states. In other words, the temperature detection control device 30 controls the on/off state of the load switch device 23 and the power supply state of the load 24 according to the information of the temperature variation of the power plug 10 and provides the corresponding warning response signal.
In the embodiment of the present invention, the temperature detection control device 30 includes a temperature sensing dome switch 31, a signal line 32 and a signal detection control unit 33. The first end 311 of the temperature sensing dome switch 31 is connected to the neutral line N and is disposed in the power plug 10, and the signal line 32 is led out from the second end 312 of the temperature sensing dome switch 31 and extends to the signal detection control unit 33 through the power line 40. The signal line 32 is connected to the temperature sensing dome switch 31 and the signal detection control unit 33. In other words, the second end 312 of the temperature sensing dome switch 31 of the temperature detection control device 30 is connected to the signal detection control unit 33 of the temperature detection control device 30 through the signal line 32 of the temperature detection control device 30. The signal detection control unit 33 is connected to the power circuit 22 and the load switch device 23, and is disposed in the electric appliance body 21 of the electric equipment 20. When the temperature of the power plug 10 changes, the voltage value of the zero line N is changed, and the temperature-sensitive dome switch 31 senses the change of the voltage and then has an on state and an off state, and transmits the two states to the signal detection control unit 33 through the signal line 32, and then controls the load switch device 23 of the electric equipment 20 to be disconnected or connected after the judgment of the signal detection control unit 33. Specifically, the signal detection control unit 33 can also provide the warning response signal to the user, so that the user receives the relevant message in real time. The warning response signal may be implemented as an alarm, a buzzer or a message, wherein the warning response signal may be directly transmitted to various electronic devices designated by the user by using a wired or wireless (WiFi or bluetooth) remote transmission manner.
It should be noted that the signal detection control unit 33 can be implemented as a processor unit (e.g. MCU) and/or a communication unit of the electric device 20 itself. Furthermore, various modules of the electric equipment 20 can be used for corresponding responses, so that the cost is reduced, the electric equipment 20 can be better protected, richer intelligent control is realized, and the electric equipment is more convenient to use.
Further, when the temperature of the power plug 10 increases or decreases, the temperature-sensitive dome switch 31 is directly turned on or turned off after sensing the temperature change, and a voltage signal is formed in the case and transmitted to the signal detection control unit 33 through the signal line 32, and then the signal detection control unit 33 detects and receives the voltage signal to determine and send a control signal to control the switch device 23 to be turned off or connected. And, at the same time, the signal detection control unit 33 is used to send out the warning response signal. The warning response signal can be directly transmitted to an electronic device appointed by a user, so that the user can immediately obtain related information. In other words, when the temperature of the power plug 10 rises to a preset dangerous value, the temperature of the temperature sensing dome switch 31 is relatively raised, and then the dome 313 therein is expanded and disconnected, at this time, the signal detection control unit 33 detects the voltage signal of the expanded and disconnected dome 313 through the signal line 32, and the signal detection control unit 33 sends out a stop control signal to control the switch device 23 of the electric device 20 to be turned off and provide the warning response signal at the same time. When power plug 10's temperature returns to normal operating temperature, makes relatively temperature-sensing shrapnel switch 31's temperature follows to fall back to normal temperature, then will make the shrapnel 313 shrink closed wherein, at this moment signal detection the control unit 33 passes through signal line 32 detects and receives the shrapnel 313 shrink closed voltage signal, signal detection the control unit 33 analysis sends a start control signal after the judgement, with control consumer 20 switching device 23 opens, and provides simultaneously warning response signal.
In another variant, as shown in fig. 2B, the electric device 20 further includes an intelligent chip 25, which can directly replace the signal detection control unit 33, for controlling the load switch device 23 and providing the warning response signal. Alternatively, the intelligent chip 25 is connected to the signal detection control unit 33, wherein the intelligent chip 25 can be utilized to receive the control signal and then perform various subsequent responses, including controlling the load switch device 23 and providing the warning response signal. Particularly, when the electric device 20 has a sound generating/emitting/communication module, various modules can be directly used to perform corresponding response actions, so as to realize richer intelligent control. For example: after the smart chip 25 is connected to the signal of the signal detection control unit 33, the corresponding warning response signal can be directly sent to the designated electronic device, such as a mobile phone, an IPAD, a computer, etc.
In the embodiment of the present invention, the temperature sensing dome switch 31 may be implemented as a relay, which may be turned on or off as the temperature increases, or may be turned on or off as the temperature decreases. The temperature sensing elastic switch 31 is connected between the zero line N and the signal line 32. The zero line N and the signal line 32 form a loop. In this loop, the voltage value on the signal line 32 changes, i.e., the voltage increases with increasing temperature, or the voltage decreases with increasing temperature. The signal detection control unit 33 detects the voltage change and performs a corresponding action according to the voltage change.
In the embodiment of the present invention, the signal detection control unit 33 is disposed on the electric device 20 and connected to the temperature sensing dome switch 31 through the signal line 32 to form a loop between the signal line 32 and the neutral line N, wherein a voltage change of the signal line 32 is associated with a transition of the on-off state of the temperature sensing dome switch 31, and the temperature change information of the power plug 10 can be fed back based on the electrical characteristics of the on-off state of the temperature sensing dome switch 31 changing with the temperature change, wherein the signal detection control unit 33 is configured to control the on-off state of the load switch device 23 based on a voltage change of the signal line 32, and to provide the warning response signal in response to the off state of the load switch device 23, so as to control the on-off state of the load switch device 23 and provide the warning response signal according to the temperature change information of the power plug 10.
Further, when all normal conditions exist, the temperature of the position of the power plug 10 belongs to a normal range, at this time, a zero level (a voltage value is zero) is provided on the zero line N, the temperature-sensitive dome switch 31 has two states of the on state and the off state, which causes voltages at two ends of the temperature-sensitive dome switch 31 to be different or the same, wherein a first end is one end at which the temperature-sensitive dome switch 31 is connected to the zero line N, a second end is one end at which the temperature-sensitive dome switch 31 is connected to the signal detection control unit 33, and the voltage at the first end is the same as the voltage at the second end, and at this time, the signal detection control unit 33 detects that a zero level (a voltage value is close to zero) is received. However, when the temperature at the position of the power plug 10 rises, the temperature-sensitive dome switch 31 expands and turns off, and then the voltage difference between the first end and the second end of the temperature-sensitive dome switch 31 is large, and the signal detection control unit 33 detects a low level (negative voltage), which indicates that the temperature of the power plug 10 is too high, and the switch device 23 is further controlled to be powered off to protect the safety of the user or the electric appliance. In addition, when the temperature slowly drops and all the temperature returns to normal, the temperature sensing dome switch 31 is turned on in a shrinkage mode, and at this time, the signal detection control unit 33 detects that a zero level (zero voltage) is received, which indicates that the plug temperature is normal, and the switch device 23 is turned on again to continue to be used. It should be mentioned that, certainly, the temperature sensing dome switch 31 may also be turned off when the temperature is normal, and turned on when the temperature rises, at this time, when the temperature is too high, the signal detection control unit 33 detects that a zero level is received, and when the temperature returns to normal, the signal detection control unit 33 detects that a low level is received. This is not a limitation of the present invention.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model.
The objects of the utility model have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (11)
1. A power line temperature sensing protection device, comprising:
a power plug;
an electrically powered device;
the power line comprises a live wire and a zero wire which are led out from the power plug and are respectively connected to the electric equipment; and
the temperature detection control device comprises a temperature sensing elastic piece switch, a signal detection control unit and a signal wire, wherein the temperature sensing elastic piece switch is arranged on the power plug and connected with the live wire or the zero wire, the signal detection control unit is arranged on the electric equipment, the signal wire is connected with the temperature sensing elastic piece switch and the signal detection control unit, the temperature change of the power plug is fed back by the voltage or current change of the signal wire through the temperature sensing elastic piece switch, and the signal detection control unit provides a warning response signal based on the voltage or current change of the signal wire.
2. The power cord temperature detection protection device according to claim 1, wherein a first end of the temperature-sensitive dome switch is connected to one end of the live wire, and a second end of the temperature-sensitive dome switch is connected to the signal wire, wherein the temperature-sensitive dome switch provides an on state or an off state according to the temperature of the power plug, and the signal detection control unit provides the warning response signal to at least one designated electronic device after the voltage or current change of the signal wire is fed back to the signal detection control unit.
3. The power cord temperature detection protection device according to claim 1, wherein a first end of the temperature sensing dome switch is connected to one end of the neutral wire, and a second end of the temperature sensing dome switch is connected to the signal wire, wherein the temperature sensing dome switch provides an on state or an off state according to the temperature of the power plug, and after the voltage or current change of the signal wire is fed back to the signal detection control unit, the signal detection control unit provides the warning response signal to at least one designated electronic device.
4. The power line temperature detection protection device according to claim 2 or 3, wherein the temperature sensing dome switch is implemented as a relay that is turned on or off as the temperature changes.
5. The power cord temperature detection protection device according to claim 2 or 3, wherein when the temperature of the power plug rises to a preset danger value, a spring of the temperature sensing spring switch is relatively expanded and disconnected, and the signal detection control unit provides the warning response signal based on the voltage drop of the signal cord.
6. The power line temperature detection protection device according to claim 2 or 3, wherein when the temperature of the power plug returns to a normal operating temperature, a spring of the temperature sensing spring switch is relatively caused to contract with cold, and the signal detection control unit provides the warning response signal based on the increase of the voltage of the signal line.
7. The power line temperature detection protection apparatus according to claim 1, wherein the electric device includes a power circuit, a load switch device whose on/off state is controlled by the signal detection control unit, and at least one load which is power-supplied to be connected to the power circuit under on/off control of the load switch device, wherein the power circuit is power-supplied to be connected to the power plug via the neutral wire and the live wire, and the signal detection control unit is power-supplied to be connected to the power circuit to control the power supply state of the load to be disconnected or connected by the load switch device based on a change in voltage or current of the signal line.
8. A temperature detection control device, which is connected to a power plug and an electric device to sense a temperature change of the power plug, comprising:
the temperature sensing elastic piece switch is arranged on the power plug, and the first end of the temperature sensing elastic piece switch is connected with a live wire or a zero wire of a power line so as to be switched off or switched on by matching with the temperature change of the power plug;
a signal detection control unit arranged on the electric equipment; and
the signal wire is connected between the second end of the temperature sensing elastic piece switch and the signal detection control unit, wherein the voltage or current change of the signal wire corresponds to the switching of the off state and the on state of the temperature sensing elastic piece switch and can feed back the temperature change of the power plug, and the signal detection control unit provides a warning response signal based on the voltage or current change of the signal wire.
9. The temperature detecting and controlling device of claim 8, wherein when the temperature of the power plug rises to a predetermined dangerous value, the signal detecting and controlling unit provides the warning response signal based on the voltage drop of the signal line, relative to the state that a spring of the temperature sensing spring switch is expanded and disconnected.
10. The temperature detection control device according to claim 8, wherein when the temperature of the power plug returns to a normal operating temperature, a spring of the temperature sensing spring switch is relatively caused to contract with cold, and the signal detection control unit provides the warning response signal based on an increase in the voltage of the signal line.
11. The temperature detection and control device according to any one of claims 8 to 10, wherein the alarm response signal is a control command for controlling the temperature detection and control device to generate a corresponding alarm action in response to the temperature variation information of the power plug, wherein the alarm action is at least one of an audio alarm, a light alarm and transmitting an alarm message to a specific electronic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123442580.4U CN216903425U (en) | 2021-12-30 | 2021-12-30 | Power line temperature detection protection device and temperature detection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123442580.4U CN216903425U (en) | 2021-12-30 | 2021-12-30 | Power line temperature detection protection device and temperature detection control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216903425U true CN216903425U (en) | 2022-07-05 |
Family
ID=82211845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123442580.4U Active CN216903425U (en) | 2021-12-30 | 2021-12-30 | Power line temperature detection protection device and temperature detection control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216903425U (en) |
-
2021
- 2021-12-30 CN CN202123442580.4U patent/CN216903425U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103809492B (en) | One-touch multifunctional control circuit and wearing electronic product | |
| CN105933193B (en) | Intelligent switch control system and method | |
| CN105610011B (en) | A kind of Intelligent energy-saving socket and method by terminal device Bluetooth control | |
| CN103116296B (en) | A kind of energy-saving socket | |
| CN211236626U (en) | Electrical apparatus safety monitoring and control system | |
| CN216903425U (en) | Power line temperature detection protection device and temperature detection control device | |
| CN216903426U (en) | Power line temperature detection protection device and temperature detection control device | |
| CN106252997B (en) | Intelligent socket with abnormal protection and method for redefining key function | |
| CN216748511U (en) | Indoor intelligent electric control system | |
| US7952462B2 (en) | Remote controlled power switch | |
| CN113687711B (en) | Terminal wake-up circuit and wake-up method | |
| CN116417829A (en) | Power line temperature detection protection system and method and temperature detection control device | |
| CN205581589U (en) | Electrical apparatus energy consumption control system based on power line carrier and WIFI | |
| CN211238622U (en) | Temperature controller | |
| CN212364825U (en) | Network remote control intelligent switch system | |
| CN116417828A (en) | Power line temperature detection protection system and method and temperature detection control device | |
| CN213066589U (en) | Electric water heater power on-off system with wireless control function | |
| CN110514956B (en) | But domestic intelligent power distribution safety coefficient of remote monitoring | |
| CN211085318U (en) | Intelligent acquisition device and system | |
| CN111223715B (en) | Load switch | |
| TWI647891B (en) | Remote remote power connector | |
| CN207095044U (en) | Without electric cleaning control system | |
| CN219959626U (en) | Socket with infrared remote control function and infrared remote controller | |
| CN111987541A (en) | Safety power line | |
| CN213873231U (en) | Intelligent protection electric water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |