KR102084849B1 - Power source type identification apparatus for displaying the type of commercial AC power source and electric heating apparatus including the same - Google Patents

Abstract

Disclosed is a power supply type checking device for displaying a type of a commercial AC power supply. The power supply unit is disposed on the printed circuit board, receives a commercial AC power supply, converts the voltage of the commercial AC power supply into a DC supply voltage, and the shielding plate is connected to the shielding board connection node formed on the printed circuit board by an electric wire, and a space. The potential detector is disposed on the printed circuit board and connected to the node for connecting the shield plate to detect the space potential formed on the shield plate, and the control unit is disposed on the printed circuit board and operated with a DC supply voltage. Check whether the space potential is within the hot potential connection range, the cold potential connection range, or the intermediate potential connection range. If the space potential corresponds to the hot potential connection range or the cold potential connection range, the voltage of the commercial AC power supply is Controlling to display a signal indicating that the normal voltage, and if the space potential is within the intermediate potential connection range, the voltage of the commercial AC power The signal for instructing that the voltage can be controlled to be displayed.

Description

Power source type identification apparatus for displaying the type of commercial AC power source and electric heating apparatus including the same}

The present invention relates to a power supply type identification device for displaying a type of a commercial AC power supply and a heating device including the same, and a power supply type identification device for identifying and displaying a type of a commercial AC power supply and a heating device including the same.

Heat transfer mats and heat bedding is a heat transfer product that generates heat by using electrical energy as a heat source, examples of heat mats, such as electric blankets, electric mattresses, heat mats, etc. Examples of heat bedding is a stone bed. The electric heating product generates heat by supplying electricity to the built-in heating wire and is equipped with a temperature controller for temperature control and control.

As the AC power is supplied to the temperature controller, electric and magnetic fields are formed, which causes electromagnetic waves to harm the human body. In general, since the temperature controller is placed close to the human body for the convenience of the user, a large amount of harmful electromagnetic waves are directly induced to the human body.

FIG. 30 is a circuit diagram illustrating an automatic ground sorting controller for preventing potential and electromagnetic waves generated from a conventional heat transfer mat from being induced to a human body, and automatically selecting a potential line such as ground among two incoming wires without a separate ground line through a microcomputer port; FIG. An example of an automatic switching switching method has been proposed in which a virtual ground point is formed on a circuit when there is no potential line such as ground, and connected to a mat body shield plate so that potentials and electromagnetic waves generated from the heat transfer mat are not induced to the human body. .

However, the conventional automatic grounding sorting regulator having the automatic switching switching circuit of FIG. 30 is connected to the port input of the microcomputer 12 by utilizing the fact that the input resistance of the port of the conventional microcomputer 12 composed of MOSFET elements is almost infinite. By connecting the antenna (ANT) formed of the PCB pattern to detect the space potential formed between the antenna and the ground and configured to perform switching control for electromagnetic shielding, when using the antenna of the PCB pattern, the height of the temperature controller arrangement ( Since the output value (space potential) of the capacitance formed according to the distance between the temperature controller and the floor) changes, it becomes difficult to accurately determine the potential and has a problem that the circuit operation becomes unstable.

As a result, a problem may occur that reacts very sensitively even to small changes in the input voltage, and may react sensitively to electrical noise around the antenna, causing a problem of malfunction.

In addition, in the conventional automatic ground sorting regulator, the node N1 between the first photocoupler PC1 and the second photocoupler PC2 constituting the photocoupler unit 17 is connected to the shield plate 14 and the circuit ground GND. It is configured to be connected to each other), so electromagnetic shielding can be done well in the cold potential state, but the electromagnetic shielding is not made well in the hot potential state, and even in the case of neutral shielding, the shielding problem is still poor. Can be.

In addition, the Republic of Korea Patent Publication No. 10-1233252 (2013.02.14) for preventing the generation of electromagnetic waves discloses an electric field automatic switching circuit provided in a temperature controller capable of automatically switching the electric field without a shielding plate. In addition, Republic of Korea Patent Publication No. 10-1659470 (September 23, 2016) discloses a thermostat for a thermal bed having a back copper foil and a front copper foil coated with an insulator.

However, the conventional temperature controller has a problem that can not prevent the generation of electromagnetic waves inherently in that the commercial AC power flows inside, there is a problem that it is not possible to accurately proceed the automatic conversion even after connecting the heating device.

The problem to be solved by the present invention is to provide a power supply type identification device and a heating device including the same for identifying the type of the commercial AC power supply to determine the type of the commercial AC power supply.

Another problem to be solved by the present invention is to provide a power supply type identification device for indicating the type of the commercial AC power supply that can be displayed by identifying the type of commercial AC power that can be easily manufactured in a small size.

Another problem to be solved by the present invention is to enable automatic switching switching for electromagnetic shielding through the control of the control unit, but to read the space potential between the shielding plate and the ground, and the input signal system input to the control unit is accurate and In order to achieve a stable and stable electric potential, the control unit judges the space potential and controls the switching output under the operating condition set in the control unit to induce accurate and stable potential detection and input as well as achieve a perfect electromagnetic shielding effect in any case. A heater thermostat and a temperature control system are provided.

Another problem to be solved by the present invention is to provide a heating device temperature controller and a temperature control system that can prevent the generation of electric and magnetic fields inherently in the heat transfer mat or heat bedding thermostat.

Another object of the present invention is to provide a heating apparatus temperature controller and a temperature control system capable of absorbing neutral electromagnetic waves even when the commercial AC power supplied is an intermediate potential.

Another object of the present invention is to provide an electric heater temperature controller and a temperature control system capable of autism magnetic fields.

Another problem to be solved by the present invention is to provide a heating device temperature controller and a temperature control system that is easy to install the body and the controller, and easy to manufacture and repair.

Another problem to be solved by the present invention is to provide a heating device temperature controller and a temperature control system that can be separated from the main body and the controller over a long distance, does not require a separate power supply to the regulator.

Another problem to be solved by the present invention is to provide an electric heater device temperature controller and a temperature control system capable of accurately checking and displaying the progress of the electric field automatic switching operation upon user request.

In order to achieve the problem to be solved, the power supply type identification device for displaying the type of the commercial AC power supply according to the present invention is disposed on a printed circuit board, is applied to the commercial AC power supply, the voltage of the commercial AC power supply A power supply for converting the voltage into a DC supply voltage, a shield plate connected to a shield plate connection node formed on the printed circuit board and an electric wire, disposed on the printed circuit board, and connected to the shield plate connection node and connected to the shield plate. A space potential detection unit for detecting a space potential to be formed; and a space potential detection unit disposed on the printed circuit board and operated by the DC supply voltage, wherein the detected space potential is selected from a range of hot potential connection ranges, cold potential connection ranges, and intermediate potential connection ranges. To determine whether it is within the range and the space potential corresponds to the hot potential connection range or the cold potential connection range. And controlling to display a signal indicating that the voltage of the commercial AC power supply is a normal voltage, and if the space potential is within the intermediate potential connection range, display a signal indicating that the voltage of the commercial AC power supply is a neutral voltage. It may include a control unit for controlling.

The power supply type checking device for displaying the type of the commercial AC power may further include a display unit displaying a signal indicating the normal voltage or a signal indicating the neutral voltage under the control of the controller.

The space potential detection unit may include a first resistor connected at one end to the shield connection node, a first capacitor connected at one end to the other end of the resistor, and a first diode connected at the anode to the other end of the capacitor, and an anode may be grounded. A second diode connected to the other end of the capacitor, one end of which is connected to the cathode of the first diode, the other end of which is connected to the second resistor, one end of which is connected to one end of the second resistor, and the other end of which is grounded A second capacitor, one end of which is connected to the other end of the second resistor, a third capacitor of which the other end is grounded, one end of which is connected to the other end of the second resistor, and the other end of which includes a third resistor connected to the other end of the third capacitor can do.

The ground of the power supply unit and the ground of the space potential detection unit may be connected to each other on the printed circuit board.

The heating apparatus according to the present invention may include a power supply type checking device for displaying the type of a commercial AC power supply.

In order to achieve the above another problem to be solved, the temperature controller of the heating device, the temperature controller of the heating device for heating the heating wire by receiving a commercial AC power supply, the node for connecting the shield plate connected to the shielding plate, the commercial AC power supply The first AC power supply line or the second AC power supply line is connected to the first AC power supply line and the second AC power supply line, and the first AC power supply line or the second AC power supply line is used to detect a voltage applied to the shielding plate connection node and to automatically switch an electric field. The electric field automatic control unit for controlling to be connected to the connection node, and the commercial AC power supply to the first AC power line and the second AC power line, when the commercial AC power corresponds to the intermediate potential, the electromagnetic wave is blocked It may include a power supply.

The electric field automatic control unit, one side is connected to the shielding plate connection node, includes a disconnection wire for disconnecting between the shielding plate connection node and the first AC power supply line or the second AC power supply line, the commercial When the AC power source is at an intermediate potential, the disconnecting wire may be cut.

The electric heater temperature controller, when the commercial AC power is initially applied, the voltage is hot potential connection range, cold potential connection range, hot potential non-connection range, cold potential non-connection range, intermediate potential connection range and intermediate potential non-connection After checking the range of the range, and after the checking, if the voltage belongs to the hot potential connection range, the first switching signal for connecting the first AC power line to the node for connecting the shield plate And a control unit for outputting to the electric field automatic control unit, and outputting a second switching signal to the electric field automatic control unit for connecting the second AC power line to the shielding plate connection node when the voltage is within the cold potential connection range. And the electric field automatic control unit is connected to the first AC power line and the shielding plate connection node, according to the first switching signal. A first power switching unit for controlling the connection of the first AC power line and the shielding plate connecting node, the second AC power supply line and the shielding plate connecting node, the second AC power in accordance with the second switching signal A second power switching unit for controlling the connection of the circle line and the shield plate connection node, and a space potential detection unit connected to the shield plate connection node, for detecting the space potential formed between the shield plate and the ground The other side of the wire for disconnection may be connected to the first power switching unit and the second power switching unit.

The heater temperature controller is arranged to be pressed on the name plate attached to the case, one end is electrically connected to the node for connecting the shield plate, the other end is a spring member for contacting the conductive ink applied to the name plate to block the magnetic field It may further include.

The power supply unit, the first power terminal for receiving the commercial AC power supply to the first AC power line, the second power terminal for supplying the commercial AC power supply to the second AC power line, the commercial AC In the case where the power corresponds to the intermediate potential, a neutral ground terminal for connecting with the shield plate, and the first power terminal, the second power terminal and the neutral ground terminal, and the commercial AC power to the intermediate potential If applicable, it may include an electromagnetic wave blocking unit for blocking the electromagnetic wave.

The electromagnetic wave blocking unit, a side of the first resistor connected to the first power terminal, one side is connected to the first resistor, the other side is connected to the second resistor, one side of the first power terminal, The other side is a first capacitor connected to the first resistor and the second resistor, one side is connected to the first capacitor, the other side is a second capacitor connected to the second power terminal, the node is the first capacitor and the second A first diode connected to the capacitor, a cathode connected to the neutral ground terminal, and an anode connected to the cathode of the first diode and the neutral ground terminal, and the cathode includes a second diode connected to the anode of the first diode. can do.

The electric field automatic control unit and the power supply unit may be formed on one printed circuit board (PCB).

The electric field automatic control unit and the power supply unit may be formed on different printed circuit boards (PCBs).

In order to achieve the above another problem to be solved, the heating device temperature control system according to the present invention, in the temperature control system of the heating device to heat the heating wire by applying a commercial AC power supply, the first and second AC power supply line Receives a commercial AC power supply through the main body for converting the voltage of the commercial AC power supply to a DC supply voltage, physically independent of the main body, connected to the main body by wire, and receives the DC supply voltage through the wire And generating a driving voltage by stepping down the DC supply voltage, operating with the generated operating voltage without supply of a commercial AC power supply, receiving a function operation signal from a user, and receiving a hot wire control signal based on the function operation signal. And the DC wire supply voltage is changed based on the generated hot wire control signal to generate the hot wire control signal. And a regulator for transmitting to the sieve, and the commercial AC power supply to the first AC power line and the second AC power line, and when the commercial AC power corresponds to an intermediate potential, a power supply unit for blocking electromagnetic waves. The main body is connected to a shield plate connection node connected to the shield plate, the first AC power line and the second AC power line, and detects a voltage applied to the shield plate connection node and automatically switches the electric field. It may include an electric field automatic control unit for controlling so that the first AC power line or the second AC power line is connected to the shield plate connection node.

The power supply unit, the first power terminal for receiving the commercial AC power supply to the first AC power line, the second power terminal for supplying the commercial AC power supply to the second AC power line, the commercial AC In the case where the power corresponds to the intermediate potential, a neutral ground terminal for connecting with the shield plate, and the first power terminal, the second power terminal and the neutral ground terminal, and the commercial AC power to the intermediate potential If applicable, it may include an electromagnetic wave blocking unit for blocking the electromagnetic wave.

The electromagnetic wave blocking unit, one side of the first resistor connected to the first power terminal, one side is connected to the first resistor, the other side is connected to the second resistor, one side of the first power terminal, A second capacitor connected to the first resistor and the second resistor, a second capacitor connected to the first capacitor, and a second capacitor connected to the second power terminal; and an anode connected to the first capacitor and the second capacitor. A second diode connected to the capacitor and a cathode connected to the neutral ground terminal, and an anode connected to the cathode of the first diode and the neutral ground terminal, and a cathode connected to the second diode connected to the anode of the first diode. It may include.

In order to achieve the another object to be solved, the heating device temperature controller according to the present invention, in the temperature controller of the heating device for heating the heating wire by receiving a commercial AC power, the node for connecting the shield plate connected to the shield plate And a first AC power line and a second AC power line to which the commercial AC power is applied, detect the voltage applied to the shielding plate connection node, and automatically switch the electric field to the first AC power line or the second AC power line. An electric field automatic control unit for controlling a circle line to be connected with the shield plate connection node; A user interface detecting a user action requesting the progress of the electric field automatic switching operation; And when the commercial AC power is initially applied, check whether the detected voltage falls within a range of a hot potential connection range, a cold potential connection range, a hot potential disconnection range, and a cold potential disconnection range, and confirms the confirmation. Afterwards, if the voltage is within the hot potential connection range, the first AC power line outputs a first switching signal for connecting the shield plate connection node to the electric field automatic control unit, and the voltage is in the cold potential connection range. Belonging to, the second AC power line outputs a second switching signal for connecting the shield plate connecting node to the electric field automatic control unit, terminates the electric field automatic switching operation, and in response to the user action, If the detection time of the user action is before the end of the automatic field switching operation, a new signal indicating that the automatic field switching operation is in progress is performed. Is controlled to be displayed, and when the detection time of the user action is after the end of the electric field automatic switching operation, the electric field automatic switching operation is normally terminated when the voltage is within the hot potential connecting range or the cold potential connecting range. A signal indicating that a signal is generated is controlled, and a signal indicating that the voltage is within the hot potential disconnection range or the cold potential disconnection range, and that the connection between the shield connection node and the shield is disconnected is displayed. It may include a control unit for controlling to.

The electric field automatic control unit is connected to the first AC power line and the shield plate connection node, and the first power switching to control the connection of the first AC power line and the shield plate connection node according to the first switching signal. part; A second power switching unit connected to the second AC power line and the shield plate connection node and controlling a connection of the second AC power line and the shield plate connection node according to the second switching signal; And a space potential detection unit connected to the shield plate connection node to detect a space potential formed between the shield plate and the ground.

After the confirmation, the control unit records the confirmation result in a flag and, in response to the user action, controls the progress of the automatic field switching operation to be displayed based on the value recorded in the flag. .

In response to the user action, the controller may check a progress state of the electric field automatic switching operation based on the detected voltage, and may control to display a progress state of the electric field automatic switching operation based on the check result. .

The heating apparatus temperature controller may further include a display unit for displaying a progress state of the electric field automatic switching operation under the control of the controller.

Another problem to be solved, in the temperature control system for controlling the power supply to the thermal wire used as a heater heating wire, receiving a commercial AC power supply via the first and second AC power supply line, and the voltage of the commercial AC power supply A main body which switches to a DC supply voltage; And physically independent of the main body, connected to the main body in a wired manner, receiving the DC supply voltage through the wired line, stepping down the DC supply voltage to generate an operating voltage, and generating the supply voltage without supplying commercial AC power. The hot wire control signal is operated at a predetermined operating voltage, receives a function manipulation signal from a user, generates a hot wire control signal based on the function manipulation signal, and changes the DC supply voltage based on the generated hot wire control signal. It includes a controller for transmitting to the main body, wherein the main body may include the electric heater temperature controller.

Another problem to be solved, in the temperature control system for controlling the power supply to the thermal wire used as a heater heating wire, receiving a commercial AC power supply via the first and second AC power supply line, the voltage of the AC power supply A main body for converting the voltage into a DC supply voltage; And physically independent of the main body, connected to the main body in a wired manner, receiving the DC supply voltage through the wired line, stepping down the DC supply voltage to generate an operating voltage, and generating the supply voltage without supplying commercial AC power. The hot wire control signal is operated at a predetermined operating voltage, receives a function manipulation signal from a user, generates a hot wire control signal based on the function manipulation signal, and changes the DC supply voltage based on the generated hot wire control signal. It includes a regulator for transmitting to the main body, The main body is connected to the shield plate connection node, the first AC power line and the second AC power line is connected to the shield plate, the voltage applied to the node for the shield plate connection The first AC power supply line or the second AC power supply line and the shielding plate connection node for detecting and automatically switching the electric field. When the electric field automatic control unit for controlling the connection, and the commercial AC power is initially applied, the detected voltage belongs to any range of hot potential connection range, cold potential connection range, hot potential non-connection range and cold potential non-connection range And after the checking, if the voltage is within the hot potential connection range, outputting a first switching signal to the electric field automatic control unit to cause the first AC power line to be connected to the shield plate connection node. And when the voltage is within the cold potential connection range, outputs a second switching signal for connecting the second AC power line to the node for connecting the shield plate to the electric field automatic control unit, and ends the electric field automatic switching operation. In response to the function operation signal requesting the progress of the electric field automatic switching operation, the reception time of the function operation signal is determined by the electric field. The electric field automatic switching indication control signal is generated to indicate that the electric field automatic switching operation is in progress, and when the reception time of the function operation signal is after the end of the electric field automatic switching operation, before the end of the automatic switching operation. If it belongs to the hot potential connection range or the cold potential connection range, an electric field automatic switching indication control signal is generated to indicate that the electric field automatic switching operation is normally terminated, and the voltage is in the hot potential unconnected range or the cold. A control unit for generating an electric field automatic switching indication control signal indicating that the shielding plate connection node and the shielding plate are disconnected when belonging to the potential disconnection range; A user interface unit receiving a function operation signal requesting a progress state; And a display unit configured to display a progress state of the automatic field switching operation according to the generated electric field automatic switching display control signal. The main body may display the electric field automatic switching progress state, by varying the DC supply voltage and transmitting the electric field automatic switching display control signal to the regulator.

In order to solve the another problem, the temperature control system according to the present invention, in the temperature control system for controlling the power supply to the thermal wire used as a heater heating wire of the heating mat or the heating bed, the first and second AC power line Receiving a commercial AC power supply through the main body, and converting the voltage of the commercial AC power source into a DC supply voltage; and physically independent of the main body, connected to the main body by wire, and supplying the DC supply voltage through the wire. Receiving, stepping down the DC supply voltage to generate an operating voltage, operating at the generated operating voltage without supply of a commercial AC power supply, receiving a function operation signal from a user, and controlling the hot wire based on the function operation signal; Generating a signal, and stepping down the DC supply voltage based on the generated hot wire control signal; A controller for transmitting to the main body, wherein the main body is configured to generate a power supply signal for controlling the supply of the commercial AC power to the heat sensitive line based on the hot wire control signal, and the first and second units. And an electric field automatic control unit for receiving the commercial AC power through an AC power line, and controlling the flow of the commercial AC power so that the electric field is automatically switched in accordance with the potential of the first and second AC power lines. The negative circuit connects a first bias resistor R1 and a first photocoupler PC1 in series to the first AC power line and a second bias resistor R2 and a second photocoupler PC2 to the second AC power line. ) Is connected in series, the node N1 between the first photocoupler (PC1) and the second photocoupler (PC2) is directly connected to the shield plate, the first photocoupler (PC) directly connected to the shield plate A coupling capacitor C1, a resistor R3, and a transistor Q1 are sequentially connected to a node N1 between 1) and the second photocoupler PC2, and a resistor R4 is connected to an output terminal of the transistor Q1. ) And the potential of the space potential formed between the shielding plate and the ground is input to the controller by connecting the integral circuit 720 and the coupling resistor R5 of the RC parallel structure of the capacitor EC1. The switching potential between the first photocoupler PC1 and the second photocoupler PC2 is determined as an output 1 and an output 2 by determining a space potential formed between the shielding plate and the ground. The control unit may be connected to automatically switch the electric field, but do not accept the electric field input after the automatic switching, and may stop the operation of the thermal wire before the automatic switching and operate the thermal wire after the automatic switching. Here, the preset operating state may include at least one of a hot potential state, a cold potential state, and an intermediate potential state.

In order to solve the above another problem, the temperature control system according to the present invention, in the heat transfer mat or heat bedding temperature control system for controlling the power supply to the heating wire used as a heater heating wire of the heating mat or heating bed, The commercial AC power is input through the first and second AC power lines, and the flow of the commercial AC power is controlled so that the electric field is automatically switched according to the potential of the first and second AC power lines to prevent the occurrence of electromagnetic waves. Converting a voltage of an AC power source into a DC supply voltage, receiving a heating wire control signal, controlling the supply of the commercial AC power to the thermal wire based on at least one of the received heating wire control signal and the temperature of the thermal wire, Among the heating wire temperature signal indicating the temperature of the thermal line and the heating line check signal indicating information on whether or not the thermal line abnormality A main body generating at least one, and physically independent of the main body, connected to the main body in a wired manner, receiving the DC supply voltage through the wired line, and stepping down the DC supply voltage to generate an operating voltage; Operating at the generated operating voltage without supply of an AC power source, extracting at least one of the hot wire temperature signal and the hot wire check signal from the received DC supply voltage, and associated with the hot wire temperature indicated by the extracted hot wire temperature signal; Display a temperature, receive a function manipulation signal from a user, generate the hot wire control signal based on the function manipulation signal, and step down the DC supply voltage based on the generated hot wire control signal to receive the hot wire control signal; It may include a regulator for transmitting to the main body.

The main body receives the commercial AC power through the first and second AC power lines, and automatically controls the flow of the AC power so that the electric field is automatically switched according to the potential of the first and second AC power lines. A control unit, a system power supply unit for converting the voltage of the commercial AC power supply into the DC supply voltage, a heating wire power supply unit supplying the commercial AC power supply to the thermal line, and a temperature sensor installed adjacent to the heat transfer plate on which the thermal line is disposed A temperature check unit for detecting a temperature in the heat transfer plate and outputting the thermal wire to the control unit, a hot wire check unit for detecting whether the thermal wire is short-circuited and outputting it to the control unit, generating the hot wire temperature signal based on the detected temperature, and checking the hot wire The hot wire check signal is generated based on a negative output, and at least one of the hot wire control signal and the detected temperature. A control unit for generating a power supply signal based on me, a heating wire control unit for controlling the supply of the commercial AC power to the thermal wire according to the power supply signal, and based on at least one of the heating wire temperature signal and the heating wire check signal. The control unit may include a communication unit configured to step down the DC supply voltage to transmit at least one of the hot wire temperature signal and the hot wire check signal to the controller, and extract the hot wire control signal from the DC supply voltage.

The communication unit further extracts a transmission start signal for confirming whether the controller transmits a signal from the DC supply voltage, and outputs the transmission start signal to the control unit. The control unit, when the transmission start signal is extracted, reads from the controller. Confirmation of the received control signal can be started.

The regulator receives the DC supply voltage through the wire, extracts at least one of the hot wire temperature signal and the hot wire check signal from the DC supply voltage, and steps down the DC supply voltage based on the hot wire control signal. A communication unit for transmitting the hot wire control signal to the main body, a power supply unit for stepping down the DC supply voltage to generate the operation voltage, a display unit for displaying a temperature associated with the hot wire temperature indicated by the hot wire temperature signal, and the function from the user. The user interface unit receives an operation signal, and adjusts a set temperature based on the input function operation signal, generates the hot wire control signal based on the function operation signal, and a hot wire temperature indicated by the hot wire temperature signal. It may include a control unit for controlling to be displayed.

The communication unit, one side of the resistor (R75) connected to the wire, the collector (collector) terminal is connected to the other side of the resistor (R75) and the hot wire control signal is input through the base terminal, the emitter (emitter) ) Terminal is an npn-type transistor Q17 that is grounded or connected to a ground circuit, a capacitor C26 on which one side is connected to the wire to extract at least one of the hot wire temperature signal and the hot wire check signal, and an emitter The driving voltage is input through a terminal, and a base terminal includes a pnp-type transistor Q18 connected to the other side of the capacitor C26 and connected to an output of a collector terminal to the controller. can do.

In order to solve the another problem, the heating device temperature controller according to the present invention, in the temperature controller of the heating device to heat the heating wire by receiving a commercial AC power supply, the node for connecting the shield plate connected to the shield plate, the commercial The first AC power supply line or the second AC power supply line is connected to a first AC power supply line and a second AC power supply line to which an AC power supply is applied, and to detect a voltage applied to the shield plate connection node and to automatically switch an electric field. The electric field automatic control unit for controlling to be connected to the shield plate connection node, and when the commercial AC power is initially applied, the electric field automatic control unit is controlled by controlling the electric field automatic control unit based on the detected voltage, the electric field automatic In response to a user action requesting the progress of the switching operation, the detection time of the user action is automatically set to the electric field. In the case before the end of the switching operation, a signal indicating that the electric field automatic switching operation is in progress is controlled, and when the detection time of the user action is after the end of the automatic electric field switching operation, the voltage is in the hot potential connection range. Or, if it is within the cold potential connection range, and controls to display a signal indicating that the electric field automatic switching operation is normally terminated, and if the voltage is within the hot potential disconnection range or cold potential disconnection range, the shield plate connection And a signal indicating that the connection between the node and the shield plate is unconnected. If the voltage is within the medium potential connection range or the medium potential non-coupling range, the voltage of the commercial AC power supply is a neutral voltage. It may include a control unit for controlling to display a signal.

The control unit, when the commercial AC power is initially applied, the voltage is any of the hot potential connection range, cold potential connection range, hot potential non-connection range, cold potential non-connection range, intermediate potential connection range and the intermediate potential non-connection range After confirming whether or not it is within the range, and after the checking, if the voltage falls within the hot potential connection range, the electric field automatic signal is supplied to the first switching signal that causes the first AC power line to be connected with the shield plate connection node. Outputting to the control unit, and if the voltage is within the cold potential connection range, outputs a second switching signal to the electric field automatic control unit for connecting the second AC power line to the node for connecting the shield plate, the electric field automatic switching operation End of the, the electric field automatic control unit is connected to the node for connecting the first AC power line and the shield plate, according to the first switching signal D) a first power switching unit for controlling the connection of the first AC power line and the shield plate connection node, the second AC power line and the shield plate connection node, the second power switch according to the second switching signal; A second power switching unit for controlling a connection between an AC power line and the shield plate connection node, and a space potential detection unit connected to the shield plate connection node to detect a space potential formed between the shield plate and the ground; can do.

After the confirmation, the control unit records the confirmation result in a flag and, in response to the user action, controls the progress of the automatic field switching operation to be displayed based on the value recorded in the flag. .

In response to the user action, the controller may check a progress state of the electric field automatic switching operation based on the detected voltage, and may control to display a progress state of the electric field automatic switching operation based on the check result. .

The electric heater temperature controller may further include a user interface configured to detect a user action requesting a progress state of the automatic field switching operation, and a display unit configured to display a progress state of the automatic field switching operation under the control of the controller. Can be.

In order to achieve the object to be solved, the heating apparatus temperature control system according to the present invention, in the temperature control system for controlling the power supply to the thermal wire used as a heater heating wire, commercially available through the first and second AC power line A main body receiving an AC power and converting the voltage of the commercial AC power into a DC supply voltage, and physically independent of the main body, connected to the main body by wire, receiving the DC supply voltage through the wire, Generating a driving voltage by stepping down the DC supply voltage, operating with the generated operating voltage without supplying a commercial AC power supply, receiving a function operation signal from a user, and generating a hot wire control signal based on the function operation signal; And changing the DC supply voltage based on the generated hot wire control signal to output the hot wire control signal to the main body. And a regulator for transmitting, wherein the main body is connected to a shield plate connection node connected to the shield plate, the first AC power line and the second AC power line, and detects a voltage applied to the shield plate connection node, and detects an electric field. An electric field automatic control unit for controlling the first AC power line or the second AC power line to be connected to the shielding plate connection node to automatically switch the control unit; And when the commercial AC power is initially applied, controls the electric field automatic control unit based on the detected voltage to perform an electric field automatic switching operation, and in response to a function operation signal requesting a progress state of the electric field automatic switching operation, If the time point at which the function operation signal is received is before the end of the electric field automatic switching operation, an electric field auto switching indication control signal indicating that the electric field automatic switching operation is in progress is generated, and the time point at which the function operation signal is received is the electric field automatic If after the end of the switching operation, if the voltage falls within the hot potential connection range or the cold potential connection range, generates an electric field automatic switching indication control signal indicating that the electric field automatic switching operation is normally terminated, the voltage is hot The shield if the potential disconnection range or the cold potential disconnection range Generates an electric field automatic switching indication control signal indicating that the connection node and the shielding plate are disconnected, and if the voltage falls within the medium potential connection range or the medium potential non-connection range, the voltage of the commercial AC power supply is neutral. And a controller configured to generate an electric field automatic switching display control signal indicating a voltage, wherein the controller comprises: a user interface configured to receive a function operation signal requesting a progress state of the electric field automatic switching operation, and the generated electric field automatic switching The electric field automatic switching progress state may be displayed according to the display control signal. The display unit may include a display unit configured to display a progress state of the electric field automatic switching operation.

The control unit, when the commercial AC power is initially applied, the voltage is any of the hot potential connection range, cold potential connection range, hot potential non-connection range, cold potential non-connection range, intermediate potential connection range and the intermediate potential non-connection range After confirming whether or not the range is within the range, and after the checking, if the voltage is within the hot potential connection range, the electric field automatic signal is supplied to the first switching signal that causes the first AC power line to be connected to the shield plate connection node. Outputting to a control unit and outputting a second switching signal to the electric field automatic control unit for connecting the second AC power line to the shielding plate connection node when the voltage is within the cold potential connection range, and automatically switching the electric field. And the main body changes the DC supply voltage to transmit the electric field automatic switching display control signal to the regulator. It is possible to display the electric field automatic switching progress characterized in that.

According to a power supply type identification device for indicating the type of a commercial AC power supply and a heating device including the same, a commercial AC power supply is a normal potential (hot potential or cold potential) or an intermediate potential by detecting a space potential formed on an attached shielding plate. It is possible to check whether or not it can be displayed and to display it, so that it is possible to select and connect the heating equipment suitable for the commercial AC power identified when connecting the heating equipment, thereby shielding electromagnetic waves caused by the heating equipment. Can eliminate unnecessary accessories for automatic conversion and electromagnetic autism in

The shielding plate is connected to the printed circuit board and the electric wire, and is attached to the case bottom plate and fixed to be positioned below the printed circuit board, thereby detecting a more accurate and consistent space potential.

According to the temperature controller and the temperature control system according to the present invention, even when the commercial AC power supplied through the power supply is an intermediate potential, it is possible to absorb the neutral electromagnetic waves, and through the spring member in contact with the conductive ink applied to the name plate Autism can be autistic.

At the user's request, it is possible to accurately check and display the progress of the electric field automatic switching operation, so that the operator or user can know whether the electric field automatic switching operation has ended normally and also know the abnormal termination and the cause thereof. This enables workers and users to identify problems during installation and resolve them quickly, reducing work time, increasing customer trust, and preventing unnecessary A / S requests or trouble inquiries.

According to the temperature control system according to the present invention, the main body is supplied with a DC voltage of a voltage lower than the voltage of the commercial AC power supply, and the regulator is supplied by operating a DC voltage having a lower voltage than the voltage of the AC power, thereby operating. By inducing only a small amount of electric and magnetic fields that do not generate electric or magnetic fields or difficult to measure, it is possible to fundamentally block the generation of harmful electric and magnetic fields.

Receiving power from the main body eliminates the need for a separate power supply to the regulator, and transmits and receives signals on the supply voltage, thereby eliminating the need for additional wired installation for signal transmission other than the power supply. Easy to install and easy to repair, the main body and the controller can be separated from the long distance, so the user can install the controller in a place that is easy to use,

Instead of connecting the shield plate to the circuit ground, the direct potential is directly connected to the node between the first photocoupler and the second photocoupler, and the space potential formed between the shield plate and the earth is the input potential, but the coupling capacitor and the resistor Through reading through transistor and integrating into resistor and capacitor integrated circuit, accurate and stable potential detection and input can be induced, and in any case, electric field automatic switching can completely shield electromagnetic waves.

1 is a block diagram showing the configuration of a preferred embodiment of a temperature control system according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a preferred embodiment of the regulator according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a preferred embodiment of the main body according to an embodiment of the present invention.
4 is a circuit diagram showing the configuration of a preferred embodiment of the communication unit and the power unit of the regulator according to an embodiment of the present invention.
5 is a circuit diagram showing the configuration of a preferred embodiment of the communication unit of the main body according to an embodiment of the present invention.
Figure 6 is a circuit diagram showing the configuration of a preferred embodiment of the electric field automatic control unit of the main body according to an embodiment of the present invention.
7 is a circuit diagram showing an electric field automatic switching circuit according to an embodiment of the present invention.
8 is a block diagram showing the configuration of a preferred embodiment of the electric heater temperature controller according to an embodiment of the present invention.
9 is a block diagram showing the configuration of a preferred embodiment for the electric field automatic control unit according to an embodiment of the present invention.
10 is a circuit diagram showing an electric field automatic switching circuit according to another embodiment of the present invention.
Figure 11 is a block diagram showing the configuration of a preferred embodiment of the heater thermostat according to another embodiment of the present invention.
12 is a block diagram showing the configuration of a preferred embodiment for the electric field automatic control unit according to an embodiment of the present invention.
FIG. 13 is a diagram illustrating a photograph of a substrate of the heater controller according to another embodiment of the present invention.
14 is a circuit diagram illustrating a circuit of a power supply unit according to an embodiment of the present invention.
FIG. 15 is a view illustrating a photograph of a case of the heater controller according to another embodiment of the present invention.
16 is a view showing a picture taken inside the case of the heater temperature controller according to another embodiment of the present invention.
17 is a view showing a picture taken on the back of the name plate of the temperature controller according to another embodiment of the present invention.
18 is a view showing a picture taken a heater controller according to another embodiment of the present invention.
19 is a block diagram of a power supply type checking device for displaying a type of a commercial AC power supply according to a temporary embodiment of the present invention.
20 is a circuit diagram of a control unit, a space potential detector, and a display unit according to an exemplary embodiment of the present invention.
21 is a circuit diagram of a power supply unit according to an embodiment of the present invention.
FIG. 22 is a view showing a photograph of a printed circuit board of a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention.
FIG. 23 is a diagram illustrating a photograph of a rear surface of a printed circuit board of a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention.
24 is a diagram illustrating a photograph of a state in which an electronic component is installed on a printed circuit board of a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention.
FIG. 25 is a diagram illustrating a rear surface of an electronic component installed on a printed circuit board of a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention.
FIG. 26 is a photograph showing a state in which a power type checking device for displaying a type of a commercial AC power source according to an embodiment of the present invention displays a signal indicating that the voltage of the commercial AC power source is a normal voltage; FIG. .
FIG. 27 is a photograph showing a state in which a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention displays a signal indicating that a voltage of the commercial AC power supply is a neutral voltage; FIG. .
FIG. 28 is a photograph of a power source type checking device for displaying a type of a commercial AC power source according to an embodiment of the present invention with respect to a rear surface thereof.
29 is a photograph showing a disassembled state of the power supply type checking device for displaying the type of a commercial AC power supply according to an embodiment of the present invention.
30 is a circuit diagram showing an automatic ground selection regulator having an automatic switching switching method according to the prior art.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the heater thermostat and the temperature control system according to the present invention. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of the person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, it is intended that the terms used in the present invention should be defined based on the meanings of the terms and the general contents of the present invention rather than the names of the simple terms.

The heating apparatus includes a heat mat and a heat bed. Heat transfer mats and heat bedding is a heat transfer product that generates heat by using electrical energy as a heat source, examples of heat mats, such as electric blankets, electric mattresses, heat mats, etc. Examples of heat bedding is a stone bed. The electric heating product generates heat by supplying electricity to the built-in heating wire and is equipped with a temperature controller for temperature control and control.

1 is a block diagram showing the configuration of a preferred embodiment of a temperature control system according to an embodiment of the present invention.

Referring to FIG. 1, the temperature control system 10 according to the present invention may include a main body 100, a first regulator 20, and a second regulator 30. In the case where the heat transfer mat or the heat bedding is for one person, the temperature control system 10 may include a main body 100 and a first regulator 20, and the main body 100 may include the first regulator 20 and the first regulator. It may be connected by a wire (101). Here, the heat mat may include an electric blanket, an electric yoke and a heat mat, and the heat bed may include a heat bed and a stone bed.

In the case where the heat transfer mat or the heat bedding is for two, the temperature control system 10 may include a main body 100, a first regulator 20, and a second regulator 30, and the main body 100 may include a first thermostat. The controller 20 may be connected to the first wired 102, and the second controller 30 may be connected to the second wired 103. In this case, the first regulator 20 may be named the left regulator and the second regulator 30 may be named the right regulator.

The main body 100 receives commercial AC power through the first AC power line AC1 and the second AC power line AC2, and the first AC power line AC1 and the second AC power line AC2 to prevent electromagnetic waves from being generated. The flow of the commercial AC power is controlled to automatically switch the electric field according to the electric potential of the electric field, and the voltage of the commercial AC power may be converted into the DC supply voltage, and the converted DC supply voltage may be converted into the first regulator 20 or the second regulator ( 30). Here, as an example, the commercial AC power source may be AC 110V or AC 220V. The DC supply voltage may be lower than the voltage of the commercial AC power supply. For example, the DC supply voltage may be DC 5V.

The main body 100 receives a hot wire control signal from the first regulator 20, and exchanges commercially with the first heat ray H1 based on at least one of the received hot wire control signal and the temperature of the first heat ray H1. At least one of a heat ray temperature signal indicating a temperature of the first heat ray H1 and a heat ray check signal indicating information on whether or not the first heat ray H1 is abnormal may be generated by controlling the supply of power. . Here, the first thermal wire H1 may be a heater heating wire of the heat transfer mat or the heat bedding.

The main body 100 receives a hot wire control signal from the second regulator 30, and exchanges commercially with the second heat ray H2 based on at least one of the received hot wire control signal and the temperature of the second heat ray H2. The power supply may be controlled, and at least one of a hot wire temperature signal indicating a temperature of the second thermal line H2 and a hot wire check signal indicating information on whether the second thermal line H2 is abnormal may be generated. . Here, the second thermal wire H2 may be a heater heating wire of the heat transfer mat or the heat bedding.

The first regulator 20 is physically independent of the main body 100, is connected to the main body 100 and the first wired 101, and receives a DC supply voltage from the main body 100 through the first wired 101. do. The first regulator 20 generates a driving voltage by stepping down the received DC supply voltage, and operates with the operating voltage generated without supply of a commercial AC power supply. Here, the operating voltage may be, for example, DC 3.3V. Wireline 102 may be for grounding.

In addition, the first regulator 20 extracts at least one of the hot wire temperature signal and the hot wire check signal transmitted by the main body 100 from the received DC supply voltage, and displays a temperature associated with the hot wire temperature indicated by the extracted hot wire temperature signal. Can be.

In addition, the first regulator 20 receives a function manipulation signal from a user, generates a hot wire control signal based on the function manipulation signal, and reduces the DC supply voltage based on the generated hot wire control signal to generate a hot wire control signal. 100 can be sent.

The second regulator 30 is physically independent of the main body 100, is connected to the main body 100 and the second wire 103, and receives a DC supply voltage from the main body 100 through the second wire 103. do. The second regulator 30 generates a driving voltage by stepping down the received DC supply voltage, and operates with the operating voltage generated without supply of a commercial AC power supply. Here, the operating voltage may be, for example, DC 3.3V. Wireline 104 may be for grounding.

In addition, the second controller 30 extracts at least one of the hot wire temperature signal and the hot wire check signal transmitted by the main body 200 from the received DC supply voltage, and displays a temperature associated with the hot wire temperature indicated by the extracted hot wire temperature signal. Can be.

In addition, the second regulator 30 receives a function manipulation signal from a user, generates a hot wire control signal based on the function manipulation signal, and reduces the DC supply voltage based on the generated hot wire control signal to generate a hot wire control signal. 100 can be sent.

2 is a block diagram showing the configuration of a preferred embodiment of the regulator according to an embodiment of the present invention.

2, the controller 200 may include a communication unit 210, a power supply unit 220, a display unit 230, a user interface unit 240, and a control unit 250. The regulator 200 may be the first regulator 20 shown in FIG. 1 and may be the second regulator 30.

The communication unit 210 may receive a DC supply voltage from the main body 100 through the wire 201, and output the received DC supply voltage to the power supply unit 220. Here, the wired wire 201 may be the first wired wire 101 or the second wired wire 103 shown in FIG. 1, and the wired wire 202 may be the wired wire 102 or the wired wire 104 shown in FIG. 1. . In FIG. 2, the communication unit 210 is connected to the communication unit 180 of the main body 100 by two wires 201 and 202, where the wire 202 may be a ground wire.

In addition, the communication unit 210 may extract at least one of the hot wire temperature signal and the hot wire check signal transmitted by the main body 100 from the received DC supply voltage, and may output the extracted signal to the controller 250. Here, the hot wire temperature signal and the hot wire check signal may be transmitted simultaneously, individually, or may be a pulse-width modulation (PWM) signal.

The communication unit 210 may transmit a hot wire control signal to the main body 100 by changing a DC supply voltage based on the hot wire control signal output from the controller 250. Here, the hot wire control signal may be a pulse-width modulation (PWM) signal.

The power supply unit 220 may generate a driving voltage by stepping down the DC supply voltage output by the communication unit 210. The communication unit 210, the power supply unit 220, the display unit 230, the user interface unit 240, and the control unit 250 operate by the driving voltage. Since the driving voltage is lower than the DC supply voltage, even when transmitting and receiving a signal through the wire 201, the driving voltage can be stably supplied to the regulator 200. That is, even when the DC supply voltage is stepped down by the hot wire control signal, the stepped DC supply voltage is maintained higher than the operation voltage, so that the operation voltage can be stably supplied to the regulator 200. In addition, even when the hot wire temperature signal and the hot wire check signal are loaded on the DC supply voltage, the DC supply voltage is kept higher than the operation voltage, so that the operation voltage is stably supplied to the regulator 200.

The display 230 may display a temperature associated with the hot wire temperature indicated by the hot wire temperature signal under the control of the controller 250.

The user interface unit 240 may receive a function manipulation signal from a user, and output the input function manipulation signal to the controller 250. The user interface 240 may be configured of a plurality of switches, and a user may input a function manipulation signal by pressing a corresponding switch among the plurality of switches.

The controller 250 may adjust the set temperature based on the function operation signal output by the user interface unit 240, generate a hot wire control signal based on the function operation signal, and transmit the generated hot wire control signal to the communication unit 210. Can be printed as If the main body 100 does not transmit a signal, the controller 250 may control the hot wire control signal to be transmitted to the main body 100. The controller 250 may be a micro controller unit (MCU) or a microcomputer.

The controller 250 may receive the hot wire temperature signal and the hot wire check signal from the communication unit 210, and control the display 230 to display the hot wire temperature indicated by the received hot wire temperature signal. When the hot wire check signal indicates that the thermal lines H1 and H2 are short-circuited, the controller 250 may control the display 230 to display an abnormal signal, and may control to sound an alarm.

3 is a block diagram showing the configuration of a preferred embodiment of the main body according to an embodiment of the present invention.

Referring to FIG. 3, the main body 100 includes an electric field automatic control unit 110, a system power supply unit 120, a hot wire power supply unit 130, a temperature check unit 140, a hot wire check unit 150, a controller 160, The heating wire controller 170, the communication unit 180, and the magnetic field offset processor 190 may be included.

The electric field automatic control unit 110 receives commercial AC power through the first AC power line AC1 and the second AC power line AC2 under the control of the controller 160, and prevents generation of electromagnetic waves. It is possible to adjust the flow of the commercial AC power so that the electric field is automatically switched in accordance with the potential of the source line AC1 and the second AC power line AC2. When the plug is connected to the outlet, electromagnetic waves are generated if the ground terminal of the outlet does not match the ground terminal of the AC power line. In the present invention, the control unit 160 reads the voltage when the plug is connected to the outlet, in accordance with the direction of the plug connected, the two ground terminals of the outlet, respectively, the normal ground portion of the first and second AC power line (AC1) (AC2) It can control the electric field automatic control unit 110 to be automatically connected to.

The system power supply unit 120 may convert the voltage of the commercial AC power input through the first AC power line AC1 and the second AC power line AC2 into a DC supply voltage. The electric field automatic controller 110, the controller 160, the hot wire controller 170, and the communicator 180 may be operated by the DC supply voltage.

The hot wire power supply unit 130 may supply the commercial AC power input through the first AC power line AC1 and the second AC power line AC2 to the thermal line H. The thermal line H may be the first thermal line H1 or the second thermal line H2 illustrated in FIG. 1.

The temperature checker 140 may detect a temperature and output the detected temperature to the controller 160. The temperature checker 140 may detect the temperature in the heat transfer plate 340 through the temperature sensor 350 installed adjacent to the heat transfer plate 340 on which the heat sensitive line H is disposed, and output the detected temperature to the controller 160. The temperature checker 140 may detect a change in the resistance of the thermal line H, detect a temperature of the thermal line H, and output the detected temperature to the controller 160.

The hot wire checker 150 may detect whether the thermal line H is shorted and output the short circuit to the controller 160. A plurality of bimetals 360 are connected in series to the thermal line H. Accordingly, when the heating plate 340 exceeds a preset temperature, the bimetals 360 are electrically turned off to cut off power. The hot wire checker 150 may detect and output the hot wire checker 150 to the controller 160.

The controller 160 may generate a hot wire temperature signal based on the temperature detected by the temperature check unit 140, and generate a hot wire check signal based on the output of the hot wire check unit 150, and the hot wire temperature signal and the hot wire The check signal may be output to the communication unit 180. When the controller 200 does not transmit a signal, the controller 160 may control the hot wire temperature signal and the hot wire check signal to be transmitted to the controller 200. The controller 250 may be a micro controller unit (MCU) or a microcomputer.

The controller 160 may receive a hot wire control signal from the communication unit 180, generate a power supply signal based on at least one of the received hot wire control signal and the detected temperature, and heat the generated power supply signal. It can be output to the controller 170.

The hot wire controller 170 may control the supply of the commercial AC power to the thermal wire H according to the power supply signal output from the controller 160. The commercial AC power supplied through the hot wire power supply unit 130 may be applied to the thermal line H under the control of the hot wire control unit 170.

The communication unit 180 changes the DC supply voltage supplied by the system power supply unit 120 based on at least one of the hot wire temperature signal and the hot wire check signal output from the control unit 160 to convert at least one of the hot wire temperature signal and the hot wire check signal. To the regulator 200.

The communication unit 180 may extract the hot wire control signal transmitted by the regulator 200 from the DC supply voltage transmitted to the regulator 200 through the wire 201, and output the extracted hot wire control signal to the controller 160. Can be.

The communication unit 180 detects a transmission start signal for confirming whether the controller 200 transmits a signal from a DC supply voltage to the controller 200 through a wire 201, and transmits the detected transmission start signal to the controller 160. You can print When the transmission start signal is received from the communication unit 180, the controller 160 may start the operation of checking the signal transmitted by the controller 200.

The magnetic field offset processor 190 may be formed on a substrate in a printed circuit board (PCB) pattern to cancel a magnetic field flowing in the thermal line H. The commercial AC power applied under the control of the hot wire control unit 170 may be applied to the thermal line H through the magnetic field offset processing unit 190.

4 is a circuit diagram showing the configuration of a preferred embodiment of the communication unit and the power unit of the regulator according to an embodiment of the present invention.

Referring to FIG. 4, the communication unit 210 may include a communication unit 410, and the power supply unit 220 may include a regulator 420.

The regulator 420 is connected to the wire 201, receives a DC supply voltage transmitted by the main body 100 through the wire 201, and steps down the applied DC supply voltage to output the operating voltage VCC. The driving voltage VCC may be DC 3.3V.

The communication unit 410 connects the interface J14, the resistor R75, the transistor Q17, the resistor R74, the resistor R76, the capacitor C26, the transistor Q18, the resistor R40, and the resistor R73. It may include. The wired 201 may be fixed by being plugged into the interface J14, and the regulator 420 may be connected to the wired 201 through the interface J14.

One end of the resistor R75 may be connected to the wire 201, and the other end thereof may be connected to a collector terminal of the transistor Q17. The resistor R75 may be connected to the wire 201 through the interface J14.

The collector terminal of the transistor Q17 is connected to the resistor R75, and the hot wire control signal D_TX output from the controller 250 is input through the base terminal, and the emitter terminal It may be grounded or connected to a ground circuit. Here, the transistor Q17 may be an npn type transistor.

One side of the resistor R74 may be connected to the emitter terminal of the transistor Q17 and the other side may be grounded.

One end of the resistor R76 may be connected to the base terminal of the transistor Q17, and the other end thereof may be connected to the controller 250. When the hot wire control signal D_TX is input to the transistor Q17 through the resistor R76, a current flows through the emitter terminal of the transistor Q17 to the resistor R74 and is transmitted through the wire 201. As the voltage is stepped down, the hot wire control signal D_TX is loaded on the DC supply voltage.

The capacitor C26 has one end connected to the wire 201 and the other end connected to the base terminal of the transistor Q18, and the signal D_RX transmitted by the main body 100 at a DC supply voltage received through the wire 201. May be extracted and output to the transistor Q18. The signal D_RX may include at least one of a hot wire temperature signal and a hot wire check signal. The capacitor C26 may be connected to the wire 201 through the interface J14.

Transistor Q18 receives an operating voltage VCC output from regulator 420 through an emitter terminal, and a base terminal of transistor Q18 is connected to capacitor C26 to extract capacitor C26. The signal D_RX may be applied, and the collector terminal of the transistor Q18 may be connected such that an output thereof is input to the controller 250. Accordingly, when the signal D_RX is applied to the base terminal of the transistor Q18, a current having a voltage amplified than the operating voltage VCC flows through the collector terminal. That is, the signal D_RX is amplified by the transistor Q18 and output to the collector terminal. Here, the transistor Q18 may be a pnp type transistor.

One end of the resistor R40 may be connected to the collector terminal of the transistor Q18, and the other end thereof may be connected to the control unit 250. The resistor R73 may be connected to the collector terminal of the transistor Q18 and the other side may be grounded. . The matched voltage is applied to the controller 250 according to the resistance values of the resistors R40 and R74. That is, the voltage at the collector terminal of the transistor Q18 is divided according to the resistance values of the resistor R40 and the resistor R74 and applied to the controller 250. Accordingly, the controller 250 receives the signal (R40) through the signal (R40). D_RX).

5 is a circuit diagram showing the configuration of a preferred embodiment of the communication unit of the main body according to an embodiment of the present invention.

Referring to FIG. 5, the communicator 180 may include a first heating communicator 510, a second heating communicator 520, and an initial signal detector 530. In some embodiments, when the heat mat or the heat bedding is for one person, the communicator 180 may include a first heating communicator 510 and an initial signal detector 530. In some embodiments, when the heating mat or the heating bedding is for two, the communication unit 180 may include a first heating communication unit 510, a second heating communication unit 520, and an initial signal detection unit 530.

The first heating communication unit 510 transmits and receives a signal with the first regulator 20 and transmits a DC supply voltage to the first regulator 20.

The first heating communication unit 510 includes an interface J12, a resistor R65, a transistor Q16, a resistor R67, a resistor R68, a capacitor C24, a transistor Q10, a resistor R35, and a resistor ( R66). The wired wire 101 may be fixed by being plugged into the interface J 12, and the DC power supply voltage VCC output by the system power supply unit 130 is connected to the first regulator 20 through the wired wire 101 across the resistor R 65. Can be sent to.

The collector terminal of the transistor Q16 is connected to the resistor R65 and the wire 101, and the transmission signal M_TX1 output from the controller 160 is input through the base terminal, and the emitter ( The emitter terminal can be grounded or connected to a ground circuit. Here, the transistor Q16 may be an npn type transistor, and the transmission signal M_TX1 may include at least one of a hot wire temperature signal and a hot wire check signal.

One side of the resistor R67 may be connected to the emitter terminal of the transistor Q16 and the other side may be grounded.

One end of the resistor R68 may be connected to the base terminal of the transistor Q16, and the other end thereof may be connected to the controller 160. When the transmission signal M_TX1 is input to the transistor Q16 through the resistor R68, a current flows through the emitter terminal of the transistor Q16 to the resistor R67 so that the DC supply voltage transmitted through the wire 101 is transmitted. As a result, the transmission signal M_TX1 is loaded on the DC supply voltage.

The capacitor C24 has one side connected to the resistor R65 and the wire 101, and the other end connected to the base terminal of the transistor Q10, and thus, the first regulator 20 at the DC supply voltage received through the wire 101. The heat wire control signal M_RX1 transmitted by the P-S may be extracted and output to the transistor Q10.

Transistor Q10 receives a DC supply voltage VCC output from system power supply 120 through an emitter terminal, and a base terminal of transistor Q10 is connected to condenser C22 to condenser C24. The extracted hot wire control signal M_RX1 may be applied, and the collector terminal of the transistor Q10 may be connected such that an output thereof is input to the controller 160. Accordingly, when the hot wire control signal M_RX1 is applied to the base terminal of the transistor Q10, a current having a voltage amplified than the DC supply voltage VCC flows through the collector terminal. That is, the hot wire control signal M_RX1 is amplified by the transistor Q10 and output to the collector terminal. Here, the transistor Q10 may be a pnp type transistor.

One end of the resistor R35 may be connected to the collector terminal of the transistor Q10, the other end thereof may be connected to the controller 160, and one side of the resistor R66 may be connected to the collector terminal of the transistor Q10 and the other side may be grounded. . The matched voltage is applied to the controller 160 according to the resistance values of the resistors R35 and R66. That is, the voltage of the collector terminal of the transistor Q10 is divided according to the resistance values of the resistor R35 and the resistor R66 and applied to the controller 160. Accordingly, the controller 160 controls the hot wire through the resistor R35. The signal M_RX1 may be received.

The second heating communication unit 520 transmits and receives a signal to and from the second regulator 30, and transmits a DC supply voltage to the second regulator 30. The second heating communication unit 520 includes an interface J13, a resistor R71, a transistor Q15, a resistor R70, a resistor R72, a capacitor C25, a transistor Q13, a resistor R36, and a resistor ( R69). The wire line 103 may be fixed by being plugged into the interface J13, and the DC supply voltage VCC output by the system power supply unit 130 is connected to the second regulator 30 through the wire line 103 across the resistor R71. Can be sent to.

The collector terminal of the transistor Q15 is connected to the resistor R71 and the wire 103, and the transmission signal M_TX2 output from the controller 160 is input through the base terminal, and the emitter ( The emitter terminal can be grounded or connected to a ground circuit. Here, the transistor Q15 may be an npn type transistor and the transmission signal M_TX2 may include at least one of a hot wire temperature signal and a hot wire check signal.

One side of the resistor R70 may be connected to the emitter terminal of the transistor Q15 and the other side may be grounded.

One end of the resistor R72 may be connected to the base terminal of the transistor Q15, and the other end thereof may be connected to the controller 160. When the transmission signal M_TX2 is input to the transistor Q15 through the resistor R72, a current flows through the emitter terminal of the transistor Q15 to the resistor R70 and is transmitted through the wire 103. As a result of stepping down, the transmission signal M_TX2 is loaded on the DC supply voltage.

The capacitor C25 has one side connected to the resistor R71 and the wire 103, and the other end connected to the base terminal of the transistor Q13, and the second regulator 30 at the DC supply voltage received through the wire 103. The heat wire control signal M_RX2 transmitted by the P-S may be extracted and output to the transistor Q13.

Transistor Q13 receives a DC supply voltage VCC output from system power supply 120 through an emitter terminal, and a base terminal of transistor Q13 is connected to condenser C22 to condenser C25. The extracted hot wire control signal M_RX2 may be applied, and the collector terminal of the transistor Q13 may be connected such that an output thereof is input to the controller 160. Accordingly, when the hot wire control signal M_RX2 is applied to the base terminal of the transistor Q13, a current having a voltage amplified than the DC supply voltage VCC flows through the collector terminal. That is, the hot wire control signal M_RX2 is amplified by the transistor Q13 and output to the collector terminal. Here, the transistor Q13 may be a pnp type transistor.

One end of the resistor R36 may be connected to the collector terminal of the transistor Q13, the other end thereof may be connected to the controller 160, and one side of the resistor R69 may be connected to the collector terminal of the transistor Q13 and the other side may be grounded. . The matched voltage is applied to the controller 160 according to the resistance values of the resistors R36 and R69. In other words, the voltage of the collector terminal of the transistor Q13 is divided according to the resistance values of the resistor R36 and the resistor R69 and applied to the controller 160. Accordingly, the controller 160 controls the hot wire through the resistor R36. The signal M_RX2 may be received.

The initial signal detector 530 detects a transmission start signal RX_INT for confirming whether the first controller 20 or the second controller 30 transmits a signal, and controls the detected transmission start signal RX_INT. ) The initial signal detector 530 may include a diode D7, a diode D10, a resistor R37, a resistor R38, a transistor Q14, and a resistor R39. The transistor Q14 may be a PNP type transistor.

The anode of the diode D7 is connected to the resistor R37 and the cathode is connected to the preceding term R35 of the first heating communication unit 510. The anode of the diode D10 is connected to the resistor R37 and the cathode is connected to the preceding term R36 of the second heating communication unit 520.

One side of the resistor R37 is connected to the diode D7 and the diode D10, and the other side thereof is connected to the resistor R38 and the base terminal of the transistor Q14.

One side of the resistor R38 is connected to the resistor R37 and the other side is connected to the emitter terminal of the transistor Q14.

The operating voltage VCC output by the system power supply 120 is branched and input to the resistor R38 and the emitter terminal of the transistor Q14, and the base terminal of the transistor Q14 is the resistor 37 and the resistor. And an output of the collector terminal of the transistor Q14 is input to the controller 160. When the hot wire control signal M_RX1 of the first regulator 20 or the hot wire control signal M_RX2 of the second regulator 30 is received, current flows to the base terminal of the transistor Q14 to convert the voltage amplified from the DC supply voltage. As the current flows to the collector terminal, the transmission start signal RX_INT may be input to the controller 160.

Figure 6 is a circuit diagram showing the configuration of a preferred embodiment of the electric field automatic control unit of the main body according to an embodiment of the present invention.

Referring to FIG. 6, the electric field automatic controller 110 includes a resistor R46, a resistor R47, a resistor R51, a resistor R52, a resistor R53, a resistor R54, a resistor R55, and a resistor. And an R64, a first photocoupler U11, a second photocoupler U12, a capacitor 16, a capacitor C21, a capacitor C23, and a transistor Q8. One side of the resistor R54 is connected to the first AC power line AC1, the other side is connected to the first photocoupler U11, and one side of the resistor R46 is connected to the second AC power line AC2. The side is connected to the second photocoupler U11.

Through the control of the controller 160, the electric field automatic control unit 110 to automatically execute the switching switching for the electromagnetic wave turn. The electric field automatic control unit 110 reads the space potential between the shield plate 610 and the ground. The controller 160 determines the space potential and outputs an electric field control signal (Elec_H_out, Elec_L_out) according to an operating state condition set in the controller 160 to control switching switching. U11) and the second photocoupler (U12) directly connected to the node (N1), and the space potential formed between the shield plate 610 and the earth as the input potential (ELEC_A) to perform switching for automatic electric field switching Read through the transistor Q8 through the capacitor C23, the resistor R51 and the capacitor C21, and integrate the resistor R47 and the capacitor C16 into the integrating circuit 111 by the RC parallel to increase the sensitivity. By providing the input signal Elec_Int to the controller 160, the present invention can induce accurate and stable potential detection and input, and in any case can completely shield the electromagnetic wave through automatic electric field switching.

7 is a circuit diagram showing an electric field automatic switching circuit according to an embodiment of the present invention.

Referring to FIG. 7, the electric field automatic control unit 110 is an electric field automatic switching circuit for a temperature controller for controlling temperature in a heat transfer mat supplied with commercial AC power through first and second AC power lines AC1 and AC2. 700 may be included.

In the electric field automatic switching circuit 700, the first resistor R23 and the first photocoupler PC1 are connected in series to the first AC power line AC1 to which the AC power is applied, and to the second AC power line AC2. The second resistor R22 and the second photocoupler PC2 are connected in series.

The node N1 between the first photocoupler PC1 and the second photocoupler PC2 is directly connected to the shield plate 710.

The node N1 between the first photocoupler PC1 and the second photocoupler PC2 to be directly connected to the shield plate 710 has a resistor R28, a capacitor CE1, a diode DE1, and a resistor R26. These are sequentially connected in series, so that the space potential formed between the shield plate 710 and the ground is input to the control unit 160 side. Here, the electric field automatic switching circuit 700 has a capacitor CE3, one side of which is connected to the diode DE1 and the resistor R26 and the other side of which is grounded, and a capacitor CE4 of which one side is connected to the resistor R26 and the other side of which is grounded. And a resistor R32 connected at one side to the resistor R26 and the capacitor EC4 and at the other side to ground.

At this time, the capacitor CE1 removes the noise component and passes only the signal of the AC component corresponding to the detection information of the space potential formed between the shielding plate 710 and the ground, and the diode DE1 is connected to the space potential. The AC component signal is rectified to prevent high circuit pressure. The AC component signal of the space potential rectified through the diode DE1 is smoothed by the capacitor CE3 and input to the port 17 of the controller 160 through the resistor R26. The resistor R32 performs an impedance matching to divide the AC component signal of the space potential by voltage, and the capacitor CE4 outputs the integral component of the AC component signal of the space potential, thereby increasing the stable signal processing and sensitivity to the controller 160. It acts to deliver.

The output terminal of the controller 160 is separated into an output 1 (port 2) and an output 2 (port 3) and connected to control each switching element of the first photocoupler PC1 and the second photocoupler PC2. do. Here, the resistor R20 is connected in series between the second port of the controller 160 and the first porter coupler PC1, and the resistor R21 is connected between the third port of the controller 160 and the second porter coupler PC2. ) Is directly connected.

At this time, the control unit 160 receives the input signal of the space potential formed between the shield plate 710 and the ground, converts and reads the analog value of the input space potential into a digital value, and has a determination result comparing the potential value. The control unit 160 is configured to control the output device 1 and the output 2 under the preset operating state condition to control the switching element of the first photocoupler (PC1) and the second photocoupler (PC2) on / off (ON / OFF). .

In other words, the controller 160 detects the space potential of the shield plate 710 by processing to sense the space potential of the shield plate 710 only at the initial time when power is supplied through the first and second AC power lines AC1 and AC2. After performing the electric field automatic switching (electromagnetic shielding) according to the above, it is configured to no longer accept the electric field input of the space potential, and the reference values for judging the hot potential, the cold potential state and the intermediate potential state for the input space potential are It is set to control the ON / OFF of the first photocoupler PC1 and the second photocoupler PC2 according to the determination of the hot potential state, the cold potential state and the intermediate potential state so that the electric field is automatically switched. .

In addition, the control unit 160 is configured to stop the operation of the heating wire of the heat transfer mat before the automatic electric field switching, and to configure the electric field automatic switching to perform a stable and perfect electric field after the automatic switching is completed.

Here, the shielding plate 710 will be used as a comprehensive meaning including all the various shielding members, that is to say that not only the shape of the plate but also the form of the shielding line or other shielding means may be used.

Referring to the operation of the electric field automatic switching circuit 700 composed of such a configuration as follows.

When the power plug of the temperature controller connected to the heat transfer mat having the heating wire is inserted into the electrical outlet, the AC input power is applied to the temperature controller through the first and second AC power lines AC1 and AC2. At this time, when either AC 220 (hot potential) is formed or AC 0V (cold potential) is formed or AC 110V (middle potential) is formed on one of the AC power lines AC1 and AC2. Is generated, which will be described below as being formed on the first AC power line AC1.

In each of the above cases, the control unit 160 turns off both the first photocoupler PC1 and the second photocoupler PC2 to an OFF state so that there is no operation signal, and the shield plate 710. The space potential formed between the earth and the earth is read.

At this time, the space potential between the shield plate 710 and the ground formed in a state where the operation signal of the first photocoupler PC1 and the second photocoupler PC2 is absent is a resistance R28, a capacitor CE1, and a diode. The input potential of the space potential detected through the input path is integrated by the capacitor CE4 via the DE1 and the resistor R26, voltage-divided by the resistor R32, and input to the controller 160. The value can be signaled and transmitted stably and accurately, and the sensitivity can be increased.

Here, the stable detection of the space potential formed between the shield plate 710 and the ground by stopping the operation of the heating wire of the heat transfer mat in the control unit 160 at the initial time when the AC input power is applied to the temperature controller, that is, before the electric field automatic switching Allow input to be performed.

The control unit 160 converts and reads the analog value of the space potential formed between the shield plate 710 and the earth into a digital value, and compares and determines the preset reference value and the input potential value of the sensed space potential. 710 is grounded or neutral grounded by controlling the operation of the first photocoupler PC1 and the second photocoupler PC2 through the output 1 and the output 2 according to the sensing state of the space potential formed around the 710. It is connected to the virtual ground corresponding to absorbs the electric field generated from the heating wire of the heat transfer mat to shield the electromagnetic waves.

At this time, the control unit 160 reads the space potential formed between the shielding plate 710 and the ground and determines that the cold state of the control unit 160 turns on the second photocoupler (PC2) through the output 2. As a result, the shielding plate 710 is connected to the second AC power supply line AC2 through the second photocoupler PC2 and absorbs the electric field generated from the heating wire of the heat transfer mat. In addition, in the hot potential state, the controller 160 turns on the first photocoupler PC1 through the output 1, whereby the shield plate 710 is connected to the first AC power line AC1 through the first photocoupler PC1. It absorbs the electric field generated by the heating wire of the heat transfer mat. Here, it is assumed that the ground of the electric field automatic switching circuit 700 is located on the second photocoupler PC2 side.

Furthermore, in the mid-potential state, the controller 160 turns on both the first photocoupler PC1 and the second photocoupler PC2 through the output 1 and the output 2, whereby the shield plate 710 has the first photocoupler. It is connected to the second AC power line AC2 through PC1 and is connected to the first AC power line AC1 through the second photo coupler PC2 to absorb the electric field generated in the heating wire of the heat transfer mat as a virtual neutral point.

In some embodiments, the controller 160 may stop the additional operation in the intermediate potential state. That is, in the intermediate potential state, the controller 160 may maintain the first photocoupler PC1 and the second photocoupler PC2 in the OFF state.

After the automatic switching according to the AC input power is applied, the control unit 160 maintains the automatic switching state as it is and no longer accepts the electric field input of the space potential, and after the automatic switching is completed, the heating wire of the heating mat is normal. It works to work.

Therefore, the electric field automatic switching circuit for the thermostat of the present patent is not directly connected to the node N1 between the first photocoupler PC1 and the second photocoupler PC2 without using a method of connecting the shield plate 710 to the circuit ground. As well as the connection box, the switching potential for the automatic switching of the electric field by using the space potential formed between the shield plate 710 and the ground as an input potential, but the resistor (R28), capacitor (CE1), diode (DE1), resistor ( Read through R26) to increase the sensitivity by integrating with the capacitor (EC4), and to lower the voltage to low voltage (R32) to provide an input signal to the control unit 160, it is possible to completely shield the electromagnetic wave in any case.

Although FIG. 7 is described under the assumption that the connection between the node N1 and the shield plate 710 is made by the shield plate connection line 801, the node N1 and the shield plate 710 are connected to the shield plate connection line 801. If not connected, there is a problem that the automatic switching of the electric field. That is, the operator installing the heating apparatus may miss the connection of the shield plate connection line 801, may not be properly connected, or may be disconnected during use.

8 is a block diagram showing the configuration of a preferred embodiment of the electric heater temperature controller according to an embodiment of the present invention.

Referring to FIG. 8, the electric heater temperature controller 800 according to the present invention may include an electric field automatic controller 810, a controller 820, a user interface unit 830, and a display unit 840.

The electric field automatic control unit 810 is connected to a shield plate connection node N1 connected to the shield plate 710, a first AC power line AC1 and a second AC power line A2 to which a commercial AC power is applied. The first AC power line AC1 or the second AC power line A2 may be connected to the node N1 for shielding plate connection in order to detect a voltage applied to the node N1 for connecting the shield plate and to automatically switch the electric field. Can be.

When the commercial AC power is initially applied, the controller 820 controls the electric field automatic control unit based on the detected voltage to perform the electric field automatic switching operation. Herein, when the commercial AC power is initially applied, the controller 820 may proceed with the automatic field switching operation only once and then terminate.

The electric field automatic switching operation, the control unit 820 is the voltage detected by the electric field automatic control unit 810 is hot potential connection range, cold potential connection range, hot potential non-connection range, cold potential non-connection range, intermediate potential connection range, It can be checked whether it falls within the medium potential unconnected range. Here, the cold potential connection range is a cold potential state in which the ground of the commercial AC power is connected to the ground of the thermostat circuit in a state in which the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. Means the range of voltage corresponding to. The hot potential connection range is a hot potential state in which the ground of the commercial AC power supply is not connected to the ground of the thermostat circuit while the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. It means the range of the corresponding voltage. The cold potential non-connection range is a voltage range corresponding to the cold potential state in which the ground of the commercial AC power supply is connected to the ground of the thermostat circuit without the shield plate 710 and the node N1 for connecting the shield plate connected. it means. The hot potential non-connection range is a voltage range corresponding to a hot potential state in which the ground of the commercial AC power supply is not connected to the ground of the thermostat circuit when the shield plate 710 and the node N1 for connecting the shield plate are not connected. Means. The intermediate potential connection range is a medium potential in which a commercial AC power is transmitted to an intermediate potential (for example, AC 110V) while the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. It means the range of voltage in the state. The intermediate potential non-connection range refers to a range of voltage in the intermediate potential state in which the commercial AC power is transmitted to the intermediate potential in a state where the shield plate 710 and the node N1 for connecting the shield plate are not connected.

The control unit 820 checks which range the voltage detected by the electric field automatic control unit 810 falls, and if the voltage falls within the hot potential connection range, the first AC power line AC1 is shielded. The first switching signal for connecting to the connection node N1 is output to the electric field automatic control unit 810, and when the voltage is within the cold potential connection range, the second AC power line AC2 connects to the shield plate connection node. The second switching signal to be connected to the N1 may be output to the electric field automatic control unit 810, and the electric field automatic switching operation may be finished. The controller 820 automatically switches the electric field without outputting a switching signal when the voltage corresponds to any one of a hot potential disconnected range, the cold potential disconnected range, the intermediate potential disconnected range, and the intermediate potential disconnected range. You can end the job.

In some embodiments, the control unit 820 may check the range of the voltage detected by the electric field automatic control unit 810, and then record the check result in a flag.

The control unit 820 responds to a user action requesting the progress of the electric field automatic switching operation, and when the detection time of the user action is before the end of the electric field automatic switching operation, a signal indicating that the electric field automatic switching operation is in progress. Can be controlled to be displayed. Here, in some embodiments, the control unit 820 may determine whether the electric field automatic switching operation is before the end of the field based on the value recorded in the flag. In some embodiments, the controller 820 may check the current procedure of the automatic electric field switching operation to check whether the electric field automatic switching operation is before the end of the automatic electric field switching operation.

The control unit 820 responds to a user action requesting the progress of the automatic field switching operation. When the detection time of the user action is after the end of the automatic field switching operation, the voltage is in the hot potential connection range or the cold. When the potential connection range is reached, a signal indicating that the electric field automatic switching operation is normally terminated is displayed, and when the voltage falls within the hot potential disconnection range or the cold potential disconnection range, A signal indicating that a connection between the node N1 and the shield plate 710 is disconnected is displayed. When the voltage falls within the intermediate potential connection range or the intermediate potential disconnection range, the voltage of the commercial AC power supply is displayed. It can be controlled to display a signal indicating that this is a neutral voltage. In some embodiments, the controller 820 may be configured such that the voltage is set to the hot potential connection range, the cold potential connection range, the hot potential disconnection range, the cold potential disconnection range, and the intermediate potential based on a value recorded in a flag. It is possible to check whether it belongs to a range of the connection range or the intermediate potential non-connection range. In some embodiments, the control unit 820 checks the progress of the electric field automatic switching operation based on the voltage detected by the armature automatic control unit 810, the progress of the electric field automatic switching operation is based on the check result The display unit 840 may be controlled to be displayed.

The user interface unit 830 detects a user action requesting the progress state of the electric field automatic switching operation, and outputs the detection result to the controller 820. The user action may include selecting a physical button of a terminal or a remote controller, performing a predetermined touch gesture on the touch screen display surface, selecting a soft button, and performing a predetermined spatial gesture recognized from an image captured by the image capturing apparatus. It may include the execution of a predetermined utterance recognized by voice recognition for the received voice. In addition, the user action may be a function manipulation signal input by pressing one of the plurality of switches of the user interface unit 240 shown in FIG. 2.

The display unit 840 displays the progress state of the electric field automatic switching operation under the control of the controller 820. The display unit 840 may signal that the automatic field switching operation is in progress when the detection time of the user action requesting the progress of the automatic field switching operation is before the end of the automatic field switching operation. When the detection time of the user action is after the end of the automatic field switching operation, the display unit 840 automatically switches the electric field when the voltage detected by the armature automatic control unit 810 falls within the hot potential connection range or the cold potential connection range. Indicates a normal termination and if the voltage falls within the hot potential disconnection range or the cold potential disconnection range, the connection between the shield plate connection node N1 and the shield plate 710 is unconnected. Indication signal can be displayed. In addition, the display unit 840 may display a signal indicating that the voltage of the commercial AC power supply is a neutral voltage when the voltage corresponds to the intermediate potential connection range or the intermediate potential non-connection range. The display unit 840 may display the signals by a specific number, display the signals by blinking lights, display the sentences, and display the sounds.

9 is a block diagram showing the configuration of a preferred embodiment for the electric field automatic control unit according to an embodiment of the present invention.

Referring to FIG. 9, the electric field automatic controller 810 may include a first power switch 910, a second power switch 920, and a space potential detector 930.

The first power switching unit 910 is connected to the first AC power line AC1 and the node N1 for shielding plate connection, and the first AC power line AC1 according to the first switching signal output from the controller 820. It is possible to control the connection of the node N1 for shielding plate connection.

The second power switching unit 920 is connected to the second AC power line AC2 and the shielding plate connection node N1, and the second AC power line AC2 is connected to the second AC power line AC2 according to the second switching signal output by the controller 820. It is possible to control the connection of the node N1 for shielding plate connection.

The space potential detector 930 may be connected to the shield plate connection node N1 to detect a space potential formed between the shield plate 710 and the ground.

The heater thermostat 800 shown in FIG. 8 may be implemented with the electric field automatic switching circuit 700 shown in FIG. In this case, the controller 820 may include the controller 160. The first power switching unit 910 may include a resistor R20, a first photocoupler PC1, and a resistor R23, and the second power switching unit 20 may include a resistor R21 and a second photocoupler. (PC2) and a resistor (R22), the space potential detector 930 is a resistor (R28), capacitor (CE1), capacitor (CE2), diode (DE1), capacitor (CE3), resistor (R26). , A capacitor CE4, and a resistor R32.

In some embodiments, the body 100 shown in FIG. 1 may include a thermostat 800 shown in FIG. 8. In this case, the user interface unit 830 and the display unit 840 of the temperature controller 800 may not be included in the main body 100, and the user interface unit 240 illustrated in FIG. 2 is the user interface unit 830. ), And the display unit 230 may include a display unit 840.

In some embodiments, the main body 100 shown in FIG. 1 may include the electric field automatic control unit 810 and the control unit 820 shown in FIG. 8, and include the first regulator 20 and the second regulator 30. ) May include the user interface 830 and the display 840 illustrated in FIG. 8. Here, the user action for requesting the progress state of the electric field automatic switching operation detected by the user interface unit 830 may include a function operation signal for requesting the progress state of the electric field automatic switching operation input from the user. The controller 820 may generate an electric field automatic switching display control signal, and the communication unit 180 illustrated in FIG. 3 transmits the electric field automatic switching display control signal to the first regulator 20 or the second regulator 30. Can be. The communicator 180 may transmit the electric field automatic switching display control signal to the first regulator 20 and the second regulator 30 by changing the DC supply voltage. The electric field automatic switching indication control signal indicates a signal indicating that the electric field automatic switching operation is in progress, a signal indicating that the electric field automatic switching operation is normally terminated, and indicates that the shielding plate connection node and the shielding plate are disconnected. And a signal indicating that the voltage of the commercial AC power supply is a neutral voltage.

The communication unit 210 illustrated in FIG. 2 may transmit a function operation signal for requesting a progress state of the electric field automatic switching operation received by the user interface unit 240 to the main body 100. Here, the communication unit 210 may transmit a function operation signal for requesting the progress state of the electric field automatic switching operation to the main body 100 by changing the DC supply voltage.

In addition, the communication unit 210 may receive the electric field automatic switching display control signal from the main body 100, and output the received electric field automatic switching display control signal to the controller 200. The controller 200 may control the display 230 to display a progress state of the electric field automatic switching operation based on the electric field automatic switching display control signal output by the communication unit 210. The display 230 may display a signal indicated by the electric field automatic switching display control signal under the control of the controller 200. That is, the display 230 indicates a signal indicating that the electric field automatic switching operation is in progress under the control of the controller 200, a signal indicating that the electric field automatic switching operation is normally terminated, the node for connecting the shielding plate and the shielding plate. One of the signal indicating that the connection is not connected, and the signal indicating that the voltage of the commercial AC power supply is a neutral voltage can be displayed.

10 is a circuit diagram showing an electric field automatic switching circuit according to another embodiment of the present invention.

Referring to FIG. 10, the electric field automatic control unit 110 is an electric field automatic switching circuit for a temperature controller for controlling temperature in a heat transfer mat supplied with commercial AC power through first and second AC power lines AC1 and AC2. 700 may be included.

In the electric field automatic switching circuit 700, the first resistor R23 and the first photocoupler PC1 are connected in series to the first AC power line AC1 to which the AC power is applied, and to the second AC power line AC2. The second resistor R22 and the second photocoupler PC2 are connected in series.

The node N1 between the first photocoupler PC1 and the second photocoupler PC2 is directly connected to the shield plate 710.

The node N1 between the first photocoupler PC1 and the second photocoupler PC2 to be directly connected to the shield plate 710 has a resistor R28, a capacitor CE1, a diode DE1, and a resistor R26. These are sequentially connected in series, so that the space potential formed between the shield plate 710 and the ground is input to the control unit 160 side. Here, the electric field automatic switching circuit 700 has a capacitor CE3, one side of which is connected to the diode DE1 and the resistor R26 and the other side of which is grounded, and a capacitor CE4 of which one side is connected to the resistor R26 and the other side of which is grounded. And a resistor R32 connected at one side to the resistor R26 and the capacitor EC4 and at the other side to ground.

At this time, the capacitor CE1 removes the noise component and passes only the signal of the AC component corresponding to the detection information of the space potential formed between the shielding plate 710 and the ground, and the diode DE1 is connected to the space potential. The AC component signal is rectified to prevent high circuit pressure. The AC component signal of the space potential rectified through the diode DE1 is smoothed by the capacitor CE3 and input to the port 17 of the controller 160 through the resistor R26. The resistor R32 performs an impedance matching to divide the AC component signal of the space potential by voltage, and the capacitor CE4 outputs the integral component of the AC component signal of the space potential, thereby increasing the stable signal processing and sensitivity to the controller 160. It acts to deliver.

The disconnecting wire J21 has one side connected to the node N1 and the other side connected to the first photocoupler PC1 and the second photocoupler PC2. When the disconnecting wire J21 is cut, the connection between the first photocoupler PC1 and the second photocoupler PC2 and the node N1 is broken. That is, when the disconnecting conducting wire J21 is cut | disconnected, the node N1 and the 1st AC power supply AC or the 2nd AC power supply line AC2 will be disconnected.

The spring member S is disposed to be pressed onto the name plate attached to the case, one end of which is electrically connected to the node N1, and the other end of the spring member S contacts the conductive ink applied to the name plate to shield the magnetic field.

The output terminal of the controller 160 is separated into an output 1 (port 2) and an output 2 (port 3) and connected to control each switching element of the first photocoupler PC1 and the second photocoupler PC2. do. Here, the resistor R20 is connected in series between the second port of the controller 160 and the first porter coupler PC1, and the resistor R21 is connected between the third port of the controller 160 and the second porter coupler PC2. ) Is directly connected.

At this time, the control unit 160 receives the input signal of the space potential formed between the shield plate 710 and the ground, converts and reads the analog value of the input space potential into a digital value, and has a determination result comparing the potential value. The control unit 160 is configured to control the output device 1 and the output 2 under the preset operating state condition to control the switching element of the first photocoupler (PC1) and the second photocoupler (PC2) on / off (ON / OFF). .

In other words, the controller 160 detects the space potential of the shield plate 710 by processing to sense the space potential of the shield plate 710 only at the initial time when power is supplied through the first and second AC power lines AC1 and AC2. After performing the electric field automatic switching (electromagnetic shielding) according to the above, it is configured to no longer accept the electric field input of the space potential, and the reference values for judging the hot potential, the cold potential state and the intermediate potential state for the input space potential are It is set to control the ON / OFF of the first photocoupler PC1 and the second photocoupler PC2 according to the determination of the hot potential state, the cold potential state and the intermediate potential state so that the electric field is automatically switched. .

In addition, the control unit 160 is configured to stop the operation of the heating wire of the heat transfer mat before the automatic electric field switching, and to configure the electric field automatic switching to perform a stable and perfect electric field after the automatic switching is completed.

Here, the shielding plate 710 will be used as a comprehensive meaning including all the various shielding members, that is to say that not only the shape of the plate but also the form of the shielding line or other shielding means may be used.

Referring to the operation of the electric field automatic switching circuit 700 composed of such a configuration as follows.

When the power plug of the temperature controller connected to the heat transfer mat having the heating wire is inserted into the electrical outlet, the AC input power is applied to the temperature controller through the first and second AC power lines AC1 and AC2. At this time, when either AC 220 (hot potential) is formed or AC 0V (cold potential) is formed or AC 110V (middle potential) is formed on one of the AC power lines AC1 and AC2. Is generated, which will be described below as being formed on the first AC power line AC1.

In each of the above cases, the control unit 160 turns off both the first photocoupler PC1 and the second photocoupler PC2 to an OFF state so that there is no operation signal, and the shield plate 710. The space potential formed between the earth and the earth is read.

At this time, the space potential between the shield plate 710 and the ground formed in a state where the operation signal of the first photocoupler PC1 and the second photocoupler PC2 is absent is a resistance R28, a capacitor CE1, and a diode. The input potential of the space potential detected through the input path is integrated by the capacitor CE4 via the DE1 and the resistor R26, voltage-divided by the resistor R32, and input to the controller 160. The value can be signaled and transmitted stably and accurately, and the sensitivity can be increased.

Here, the stable detection of the space potential formed between the shield plate 710 and the ground by stopping the operation of the heating wire of the heat transfer mat in the control unit 160 at the initial time when the AC input power is applied to the temperature controller, that is, before the electric field automatic switching Allow input to be performed.

The control unit 160 converts and reads the analog value of the space potential formed between the shield plate 710 and the earth into a digital value, and compares and determines the preset reference value and the input potential value of the sensed space potential. 710 is grounded or neutral grounded by controlling the operation of the first photocoupler PC1 and the second photocoupler PC2 through the output 1 and the output 2 according to the sensing state of the space potential formed around the 710. It is connected to the virtual ground corresponding to absorbs the electric field generated from the heating wire of the heat transfer mat to shield the electromagnetic waves.

At this time, the control unit 160 reads the space potential formed between the shielding plate 710 and the ground and determines that the cold state of the control unit 160 turns on the second photocoupler (PC2) through the output 2. As a result, the shielding plate 710 is connected to the second AC power supply line AC2 through the second photocoupler PC2 and absorbs the electric field generated from the heating wire of the heat transfer mat. In addition, in the hot potential state, the controller 160 turns on the first photocoupler PC1 through the output 1, whereby the shield plate 710 is connected to the first AC power line AC1 through the first photocoupler PC1. It absorbs the electric field generated by the heating wire of the heat transfer mat. Here, it is assumed that the ground of the electric field automatic switching circuit 700 is located on the second photocoupler PC2 side.

Further, in the intermediate potential state, the disconnecting wire J21 is disconnected. In addition, the controller 160 may stop the additional operation. That is, in the intermediate potential state, the controller 160 may maintain the first photocoupler PC1 and the second photocoupler PC2 in the OFF state.

After the automatic switching according to the AC input power is applied, the control unit 160 maintains the automatic switching state as it is and no longer accepts the electric field input of the space potential, and after the automatic switching is completed, the heating wire of the heating mat is normal. It works to work.

Therefore, the electric field automatic switching circuit for the thermostat of the present patent is not directly connected to the node N1 between the first photocoupler PC1 and the second photocoupler PC2 without using a method of connecting the shield plate 710 to the circuit ground. As well as the connection box, the switching potential for the automatic switching of the electric field by using the space potential formed between the shield plate 710 and the ground as an input potential, but the resistor (R28), capacitor (CE1), diode (DE1), resistor ( Read through R26) to increase the sensitivity by integrating with the capacitor (EC4), and to lower the voltage to low voltage (R32) to provide an input signal to the control unit 160, it is possible to completely shield the electromagnetic wave in any case. In addition, if the intermediate potential state, the control unit 160 stops the additional operation, it is possible to induce the disconnection conducting wire (J21) to completely shield the electromagnetic waves in another way.

Although FIG. 7 is described under the assumption that the connection between the node N1 and the shield plate 710 is made by the shield plate connection line 801, the node N1 and the shield plate 710 are connected to the shield plate connection line 801. If not connected, there is a problem that the automatic switching of the electric field. That is, the operator installing the heating apparatus may miss the connection of the shield plate connection line 801, may not be properly connected, or may be disconnected during use.

Figure 11 is a block diagram showing the configuration of a preferred embodiment of the heater thermostat according to another embodiment of the present invention.

Referring to FIG. 11, the electric heater temperature controller 800 according to the present invention includes an electric field automatic controller 810, a controller 820, a user interface 830, a display 840, a power supply 850, and the like. It may include a spring member (S).

The electric field automatic control unit 810 is connected to a shield plate connection node N1 connected to the shield plate 710, a first AC power line AC1 and a second AC power line A2 to which a commercial AC power is applied. The first AC power line AC1 or the second AC power line A2 may be connected to the node N1 for shielding plate connection in order to detect a voltage applied to the node N1 for connecting the shield plate and to automatically switch the electric field. Can be.

When the commercial AC power is initially applied, the controller 820 controls the electric field automatic control unit based on the detected voltage to perform the electric field automatic switching operation. Herein, when the commercial AC power is initially applied, the controller 820 may proceed with the automatic field switching operation only once and then terminate.

The electric field automatic switching operation, the control unit 820 is the voltage detected by the electric field automatic control unit 810 is hot potential connection range, cold potential connection range, hot potential non-connection range, cold potential non-connection range, intermediate potential connection range, It can be checked whether it falls within the medium potential unconnected range. Here, the cold potential connection range is a cold potential state in which the ground of the commercial AC power is connected to the ground of the thermostat circuit in a state in which the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. Means the range of voltage corresponding to. The hot potential connection range is a hot potential state in which the ground of the commercial AC power supply is not connected to the ground of the thermostat circuit while the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. It means the range of the corresponding voltage. The cold potential non-connection range is a voltage range corresponding to the cold potential state in which the ground of the commercial AC power supply is connected to the ground of the thermostat circuit without the shield plate 710 and the node N1 for connecting the shield plate connected. it means. The hot potential non-connection range is a voltage range corresponding to a hot potential state in which the ground of the commercial AC power supply is not connected to the ground of the thermostat circuit when the shield plate 710 and the node N1 for connecting the shield plate are not connected. Means. The intermediate potential connection range is a medium potential in which a commercial AC power is transmitted to an intermediate potential (for example, AC 110V) while the shield plate 710 and the node N1 for connecting the shield plate are connected by the shield plate connection line 801. It means the range of voltage in the state. The intermediate potential non-connection range refers to a range of voltage in the intermediate potential state in which the commercial AC power is transmitted to the intermediate potential in a state where the shield plate 710 and the node N1 for connecting the shield plate are not connected.

The control unit 820 checks which range the voltage detected by the electric field automatic control unit 810 falls, and if the voltage falls within the hot potential connection range, the first AC power line AC1 is shielded. The first switching signal for connecting to the connection node N1 is output to the electric field automatic control unit 810, and when the voltage is within the cold potential connection range, the second AC power line AC2 connects to the shield plate connection node. The second switching signal to be connected to the N1 may be output to the electric field automatic control unit 810, and the electric field automatic switching operation may be finished. The controller 820 automatically switches the electric field without outputting a switching signal when the voltage corresponds to any one of a hot potential disconnected range, the cold potential disconnected range, the intermediate potential disconnected range, and the intermediate potential disconnected range. You can end the job.

In some embodiments, the control unit 820 may check the range of the voltage detected by the electric field automatic control unit 810, and then record the check result in a flag.

The control unit 820 responds to a user action requesting the progress of the electric field automatic switching operation, and when the detection time of the user action is before the end of the electric field automatic switching operation, a signal indicating that the electric field automatic switching operation is in progress. Can be controlled to be displayed. Here, in some embodiments, the control unit 820 may determine whether the electric field automatic switching operation is before the end of the field based on the value recorded in the flag. In some embodiments, the controller 820 may check the current procedure of the automatic electric field switching operation to check whether the electric field automatic switching operation is before the end of the automatic electric field switching operation.

The control unit 820 responds to a user action requesting the progress of the automatic field switching operation. When the detection time of the user action is after the end of the automatic field switching operation, the voltage is in the hot potential connection range or the cold. When the potential connection range is reached, a signal indicating that the electric field automatic switching operation is normally terminated is displayed, and when the voltage falls within the hot potential disconnection range or the cold potential disconnection range, A signal indicating that a connection between the node N1 and the shield plate 710 is disconnected is displayed. When the voltage falls within the intermediate potential connection range or the intermediate potential disconnection range, the voltage of the commercial AC power supply is displayed. It can be controlled to display a signal indicating that this is a neutral voltage. In some embodiments, the controller 820 may be configured such that the voltage is set to the hot potential connection range, the cold potential connection range, the hot potential disconnection range, the cold potential disconnection range, and the intermediate potential based on a value recorded in a flag. It is possible to check whether it belongs to a range of the connection range or the intermediate potential non-connection range. In some embodiments, the control unit 820 checks the progress of the electric field automatic switching operation based on the voltage detected by the armature automatic control unit 810, the progress of the electric field automatic switching operation is based on the check result The display unit 840 may be controlled to be displayed.

The user interface unit 830 detects a user action requesting the progress state of the electric field automatic switching operation, and outputs the detection result to the controller 820. The user action may include selecting a physical button of a terminal or a remote controller, performing a predetermined touch gesture on the touch screen display surface, selecting a soft button, and performing a predetermined spatial gesture recognized from an image captured by the image capturing apparatus. It may include the execution of a predetermined utterance recognized by voice recognition for the received voice. In addition, the user action may be a function manipulation signal input by pressing one of the plurality of switches of the user interface unit 240 shown in FIG. 2.

The display unit 840 displays the progress state of the electric field automatic switching operation under the control of the controller 820. The display unit 840 may signal that the automatic field switching operation is in progress when the detection time of the user action requesting the progress of the automatic field switching operation is before the end of the automatic field switching operation. When the detection time of the user action is after the end of the automatic field switching operation, the display unit 840 automatically switches the electric field when the voltage detected by the armature automatic control unit 810 falls within the hot potential connection range or the cold potential connection range. Indicates a normal termination and if the voltage falls within the hot potential disconnection range or the cold potential disconnection range, the connection between the shield plate connection node N1 and the shield plate 710 is unconnected. Indication signal can be displayed. In addition, the display unit 840 may display a signal indicating that the voltage of the commercial AC power supply is a neutral voltage when the voltage corresponds to the intermediate potential connection range or the intermediate potential non-connection range. The display unit 840 may display the signals by a specific number, display the signals by blinking lights, display the sentences, and display the sounds.

12 is a block diagram showing the configuration of a preferred embodiment for the electric field automatic control unit according to an embodiment of the present invention.

Referring to FIG. 12, the electric field automatic adjusting unit 810 may include a first power switching unit 910, a second power switching unit 920, a space potential detecting unit 930, and a disconnecting wire J21. .

The first power switching unit 910 is connected to the first AC power line AC1 and the node N1 for shielding plate connection, and the first AC power line AC1 according to the first switching signal output from the controller 820. It is possible to control the connection of the node N1 for shielding plate connection.

The second power switching unit 920 is connected to the second AC power line AC2 and the shielding plate connection node N1, and the second AC power line AC2 is connected to the second AC power line AC2 according to the second switching signal output by the controller 820. It is possible to control the connection of the node N1 for shielding plate connection.

FIG. 13 is a diagram illustrating a photograph of a substrate of the heater controller according to another embodiment of the present invention.

Referring to FIG. 13, the wire for disconnection J21 is connected to one side of the shield plate connection node N1 and the other side of the wire disconnection wire J21 to be connected to the first power switching unit 910 and the second power switching unit 920. The plate connection node N1 may be disconnected from the first AC power line AC1 or the second AC power line AC2. When the disconnecting wire J21 is cut off, the connection between the first power switching unit 910 and the second power switching unit 920 and the node N1 is disconnected. Accordingly, the node N1 and the first AC power line are disconnected. AC1 or the second AC power supply line AC2 is disconnected.

When the commercial AC power source has an intermediate potential, the disconnection wire J21 may be cut to completely shield electromagnetic waves by the power supply unit 850.

The space potential detector 930 may be connected to the shield plate connection node N1 to detect a space potential formed between the shield plate 710 and the ground.

The power supply unit 850 may supply commercial AC power to the first AC power line AC1 and the second AC power line AC2, and may block electromagnetic waves when the commercial AC power corresponds to an intermediate potential.

14 is a circuit diagram illustrating a circuit of a power supply unit according to an embodiment of the present invention.

Referring to FIG. 14, the power supply unit 850 receives a commercial AC power and receives a first AC terminal 851 and a commercial AC power to supply a first AC power line AC1 to a second AC power line AC2. A second power terminal 853 for supplying the same, a neutral ground terminal 855 for connecting with the shielding plate 710, and a first power terminal 851 when the commercial AC power corresponds to an intermediate potential. When connected to the second power terminal 853 and the neutral ground terminal 855, and the commercial AC power corresponds to the intermediate potential, it may include an electromagnetic wave blocking unit 857 to block the electromagnetic wave.

When the commercial AC power source has an intermediate potential, the disconnection wire J21 is cut by the worker, thereby disconnecting the shield plate 710 from the automatic field control unit 810, and thus, the automatic field control unit 810. The operation of does not affect the automatic switching, when the shield plate 710 and the neutral ground terminal 855 is connected by the operator, the power supply unit 850 shields electromagnetic waves.

The electromagnetic wave blocking unit 857 has a first resistor R1 connected at one side to a first power terminal 851, a second resistor connected at a side to a first resistor R1, and a second resistor connected to a second power terminal 853 on the other side. And a first capacitor C1 connected to one side of the first power supply terminal 851 and the other side connected to the first resistor R1 and the second resistor R2, and one side connected to the first capacitor C1. The other side is a second capacitor C2 connected to the second power supply terminal 853, the anode is connected to the first capacitor C1 and the second capacitor C2, and the cathode is connected to the neutral ground terminal 855. D1) and the anode may be connected to the cathode of the first diode D1 and the neutral ground terminal 855, and the cathode may include a second diode D2 connected to the anode of the first diode D1.

15 is a view showing a picture taken a case of the heating apparatus temperature controller according to another embodiment of the present invention, Figure 16 is a picture taken inside the case of the heater temperature controller according to another embodiment of the present invention. FIG. 17 is a view illustrating a photograph of the back surface of the name plate of the temperature controller according to another embodiment of the present invention.

15 to 17, the spring member S is disposed to be pressed on the name plate 1510 attached to the case 1500, one end of which is electrically connected to the node N1 for connecting the shield plate, and the other end of the spring member S The magnetic field may be blocked by contacting the conductive ink applied to the name plate 1510.

The case 1500 may include a through hole 1501 through which the spring member S passes.

The name plate 1510 may be coated with the conductive ink 1520 on the back surface 1511, and an adhesive 1530 may be coated on the conductive ink 1520. The adhesive 1530 may function to attach the name plate 1510 to the case 1500. The name plate 1510 may have a conductive ink groove 1513 formed on the rear surface 1511. The conductive ink groove 1513 means a region where the adhesive is not applied.

The spring member S may be a spring member SPRING shown in FIG. 13, and the substrate shown in FIG. 13 may be disposed in a space inside the case 1500. The spring member SPRING penetrates the through hole 1501 of the case 1500 and may be in electrical contact with the conductive ink groove 1513 located on the rear surface 1511 of the name plate 1510.

18 is a view showing a picture taken a heater controller according to another embodiment of the present invention.

As shown in FIG. 18, the electric field automatic controller 810 and the power supply unit 850 may be formed on another printed circuit board (PCB) independently of each other, and the electric field automatic controller 810 and The power supply units 850 may be connected to each other by wires.

In some embodiments, the electric field automatic controller 810 and the power supply 850 may be formed on one printed circuit board (PCB). In this case, the first AC power line AC1 and the second AC power line AC2 may be printed circuits. That is, the first AC power line AC1 and the second AC power line AC2 may be implemented with a strip of conductive metal on the substrate.

The electric heater temperature controller 800 shown in FIG. 11 may be implemented by the electric field automatic switching circuit 700 shown in FIG. 10. In this case, the controller 820 may include the controller 160. The first power switching unit 910 may include a resistor R20, a first photocoupler PC1, and a resistor R23, and the second power switching unit 20 may include a resistor R21 and a second photocoupler. (PC2) and a resistor (R22), the space potential detector 930 is a resistor (R28), capacitor (CE1), capacitor (CE2), diode (DE1), capacitor (CE3), resistor (R26). , A capacitor CE4, and a resistor R32. The disconnecting wire J21 may be the disconnecting wire J21 shown in FIG. 10, and the spring member S may be the spring member S shown in FIG. 10.

In some embodiments, the body 100 shown in FIG. 1 may include a thermostat 800 shown in FIG. 11. In this case, the user interface unit 830 and the display unit 840 of the temperature controller 800 may not be included in the main body 100, and the user interface unit 240 illustrated in FIG. 2 is the user interface unit 830. ), And the display unit 230 may include a display unit 840.

In some embodiments, the main body 100 shown in FIG. 1 may include the electric field automatic control unit 810 and the control unit 820 shown in FIG. 11, and include the first regulator 20 and the second regulator 30. ) May include the user interface 830 and the display 840 illustrated in FIG. 11. Here, the user action for requesting the progress state of the electric field automatic switching operation detected by the user interface unit 830 may include a function operation signal for requesting the progress state of the electric field automatic switching operation input from the user. The controller 820 may generate an electric field automatic switching display control signal, and the communication unit 180 illustrated in FIG. 3 transmits the electric field automatic switching display control signal to the first regulator 20 or the second regulator 30. Can be. The communicator 180 may transmit the electric field automatic switching display control signal to the first regulator 20 and the second regulator 30 by changing the DC supply voltage. The electric field automatic switching indication control signal indicates a signal indicating that the electric field automatic switching operation is in progress, a signal indicating that the electric field automatic switching operation is normally terminated, and indicates that the shielding plate connection node and the shielding plate are disconnected. And a signal indicating that the voltage of the commercial AC power supply is a neutral voltage.

The communication unit 210 illustrated in FIG. 2 may transmit a function operation signal for requesting a progress state of the electric field automatic switching operation received by the user interface unit 240 to the main body 100. Here, the communication unit 210 may transmit a function operation signal for requesting the progress state of the electric field automatic switching operation to the main body 100 by changing the DC supply voltage.

In addition, the communication unit 210 may receive the electric field automatic switching display control signal from the main body 100, and output the received electric field automatic switching display control signal to the controller 200. The controller 200 may control the display 230 to display a progress state of the electric field automatic switching operation based on the electric field automatic switching display control signal output by the communication unit 210. The display 230 may display a signal indicated by the electric field automatic switching display control signal under the control of the controller 200. That is, the display 230 indicates a signal indicating that the electric field automatic switching operation is in progress under the control of the controller 200, a signal indicating that the electric field automatic switching operation is normally terminated, the node for connecting the shielding plate and the shielding plate. One of the signal indicating that the connection is not connected, and the signal indicating that the voltage of the commercial AC power supply is a neutral voltage can be displayed.

The heater thermostat 800 of FIG. 11 may not include the electric field automatic controller 810. In this case, the electric heater temperature controller 800 may be manufactured in a state in which the shielding plate 710 and the neutral ground terminal 855 of the power supply unit 850 are connected, and only for the case where the commercial AC power is an intermediate potential. Can be used as

19 is a block diagram of a power supply type checking device for displaying a type of a commercial AC power supply according to a temporary embodiment of the present invention.

Referring to FIG. 19, a power supply type checking apparatus 1900 for displaying a type of a commercial AC power supply according to the present invention includes a power supply unit 1910, a shield plate 1920, a space potential detection unit 1930, and a control unit 1940. And a display unit 1950. The heating apparatus according to the present invention may include a power supply type checking device 1900 for displaying the type of a commercial AC power supply according to the present invention. The temperature control system 10 of FIG. 1 and the heater temperature controller 800 of FIG. 11 may include a power supply type checking device 1900 for displaying the type of a commercial AC power supply according to the present invention.

The power supply unit 1910 receives a commercial AC power supply and converts the voltage of the commercial AC power supply into a DC supply voltage. The power supply unit 1910 may receive a commercial AC power supply through the first AC power supply AC1 and the second AC power supply line AC2. Here, as an example, the commercial AC power source may be AC 110V or AC 220V. The DC supply voltage may be lower than the voltage of the commercial AC power supply. For example, the DC supply voltage may be DC 5V.

The shield plate 1920 may be connected to the node N1 for connecting the shield plate by a wire.

The space potential detector 1930 may be connected to the shield plate connection node N1 to detect a space potential formed in the shield plate 1920. The space potential formed in the shielding plate 1920 may include a space potential formed between the shielding plate and the ground or an AC voltage between the shielding plate 1920 and the ground of the circuit board.

The control unit 1940 is operated by a DC supply voltage supplied by the power supply unit 1910, and the space potential detected by the space potential detection unit 1930 corresponds to any range of the hot potential connection range, the cold potential connection range, and the intermediate potential connection range. You can check whether If the space potential corresponds to the hot potential connection range or the cold potential connection range, the controller 1940 controls to display a signal indicating that the voltage of the commercial AC power supply is a normal voltage, and the space potential connects to the intermediate potential. If the range, the signal indicating that the voltage of the commercial AC power supply is a neutral voltage can be controlled to be displayed. Here, the steady voltage may include a hot potential or a cold potential.

The display unit 1950 may display a signal indicating the normal voltage or a signal indicating the neutral voltage under the control of the controller 1940. The display unit 1950 may display the signals by a specific number, display the lights by blinking lights, display the text, and display the sounds.

20 is a circuit diagram of a control unit, a space potential detector, and a display unit according to an exemplary embodiment of the present invention.

Referring to FIG. 20, the microcomputer U1 may be an example of the controller 1940, and the microcomputer U1 may receive a DC supply voltage VCC.

The space potential detector 1930 has a first resistor R6 having one end connected to the node N1 for shielding plate connection, a first capacitor C4 having one end connected to the other end of the resistor R6, and an anode having a first capacitor C4. The first diode (D4) connected to the other end of the), the anode is grounded, the cathode is connected to the second diode (D1) connected to the other end of the first capacitor (C4), one end is connected to the cathode of the first diode (D4), The second end of the second resistor (R7) is connected to the microcomputer (U1), one end is connected to one end of the second resistor (R7), the other end is grounded second capacitor (C5), the other end of the second resistor (R7) A third capacitor C6 connected to the stage, the other end of which is grounded, one end of which is connected to the other end of the second resistor R7, and the other end of which includes a third resistor R8 connected to the other end of the third capacitor C6. Can be.

In FIG. 20, the space potential formed in the shielding plate 1920 means an AC voltage between the shielding plate 1920 and the ground. The space potential detector 1930 attenuates the AC voltage between the shielding plate 1920 and the ground with the first resistor R6 and passes only the AC value through the first capacitor C4, and then the first diode D4 and the second diode. Back pressure rectification is applied to (D1) and an analog value (A / D value) is applied to the GP2 port of the microcomputer U1 through the second resistor R7. At this time, the third resistor (R8) is operated as a load resistance of the A / D value, the second condenser (C5) and the third condenser (C6) functions and acts for noise removal and smoothing, and the second condenser (C5) ), The third capacitor (C6) and the second resistor (R7) functions and acts as a pie type filter. Here, the space potential detected by the space potential detection unit 1930 means an A / D value.

LED 1 (LED) and LED 2 (GREEN) may be an example of the display unit 1940.

21 is a circuit diagram of a power supply unit according to an embodiment of the present invention.

Referring to FIG. 21, the power supply unit 1910 includes a fuse F1, a varistor TNR1, a capacitor C2, a power thermistor TH1, a capacitor C1, a resistor R5, a diode D2, and a diode D3. ), A resistor R1, an electrolytic capacitor EC1, a zener diode ZD1, and an electrolytic capacitor EC2, and may include a first AC power source AC1 and a second AC power line AC2 through an interface CN2. ), And can receive commercial AC power. Although the fuse F1 is illustrated as being connected to the power thermistor TH1 in the circuit diagram of FIG. 21, the fuse F1 may be modified to be connected to the varistor TNR1.

The power supply unit 1910 passes the applied commercial AC power supply through the fuse F1 to the power thermistor TH1, and by matching the value of the capacitor C1 and the value of the resistor R5, the diode D2 and the diode ( D3) is passed to convert into pulse current, DC is obtained by electrolytic capacitor EC1, DC voltage is controlled by Zener diode ZD1 via resistor R1, and electrolytic capacitor EC2 causes ripple voltage. Remove the formed to complete the DC supply voltage.

FIG. 22 is a view showing a photograph of a printed circuit board of a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention, and FIG. 23 is a commercial view according to an embodiment of the present invention. 24 is a view showing a photograph taken on the back of the printed circuit board of the power supply type checking device for indicating the type of the AC power supply, Figure 24 is a power supply type for displaying the type of the commercial AC power supply according to an embodiment of the present invention 25 is a diagram illustrating a photograph of a state in which an electronic component is installed on a printed circuit board of a verification device, and FIG. 25 is a printed circuit of a power supply type verification device for displaying a type of a commercial AC power supply according to an embodiment of the present invention. It is a figure which shows the photograph which image | photographed the back surface of the state in which the electronic component was installed on the board | substrate.

22 through 25, the power supply unit 1910, the space potential detection unit 1930, the control unit 1940, and the display unit 1950 may be formed on one printed circuit board 2201. In addition, the ground of the power supply unit 1910 and the ground of the space potential detection unit 1930 may be connected to each other on the printed circuit board 2201.

The part numbers of the printed circuit board 2201 and the part numbers in the circuit diagrams of FIGS. 20 and 21 correspond to each other, and the AC1 terminal and the AC2 terminal of the printed circuit board 2201 respectively represent the interface CN2 of the circuit diagram of FIG. 21. The first and second terminals may correspond to each other, or may be connected through the power lines 1911 and 1913, and the node N1 for connecting the shield plate may correspond to the EARTH terminal of the printed circuit board 2201. In the printed circuit board 2201, the fuse F1 is connected to the varistor TNR.

FIG. 26 is a photograph showing a state in which a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention displays a signal indicating that the voltage of the commercial AC power supply is a normal voltage; FIG. .

Referring to FIG. 26, in the case where the AC power supply AC220V is connected to the interface CN2, the hot potential is connected to the first terminal of the interface CN2 and the cold potential is connected to the second terminal of the interface CN2. The A / D value applied to the GP2 port of the microcomputer U1 belongs to the cold potential connection range, and at this time, the power type checking device 1900 turns on the LED2 (GREEN) connected to the GP4 port of the microcomputer U1. can do. In FIG. 26, it can be seen that LED2 (GREEN) is turned on.

When the commercial AC power supply AC220V is connected to the interface CN2, when the cold potential is connected to terminal 1 of the interface CN2 and the hot potential is connected to terminal 2 of the interface CN2, the microcomputer U1 is connected. The A / D value applied to the GP2 port of the) is in the hot potential connection range, and at this time, the power type checking device 1900 may cause the LED2 (GREEN) connected to the GP4 port of the microcomputer U1 to light up.

FIG. 27 is a photograph showing a state in which a power supply type checking device for displaying a type of a commercial AC power supply according to an embodiment of the present invention displays a signal indicating that the voltage of the commercial AC power supply is a neutral voltage; FIG. .

Referring to FIG. 27, when the commercial AC power supply AC 220V is connected to the interface CN2, when the intermediate potential is connected to each of terminals 1 and 2 of the interface CN2, the microcomputer U1 of the microcomputer U1 is connected. The A / D value applied to the GP2 port belongs to the intermediate potential connection range. In this case, the power type checking device 1900 may cause the LED1 RED connected to the GP5 of the microcomputer U1 to light up. In FIG. 27, it can be seen that LED1 (RED) is turned on.

FIG. 28 is a photograph of a power supply type checking device for displaying a type of a commercial AC power source according to an embodiment of the present invention with a back surface as the center; FIG. 29 is a type of commercial AC power source according to an embodiment of the present invention. This is a picture taken when the power type checking device is disassembled.

28 and 29, the shielding plate 1920 is connected to the printed circuit board 2201 and the electric wire 1921, and is attached to the bottom plate 2213 of the case 2210 and positioned below the printed circuit board 2201. In this way, the present invention has the effect of detecting a more accurate and consistent spatial potential.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific preferred embodiments described above, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

Temperature control system 10 Body 100
1st regulator 20 2nd regulator 30
Temperature controller 800 Electric field controller 810
Control Unit 820 User Interface Unit 830
Display 840 Power Supply 850
Spring member S

Claims (5)

A power supply unit disposed on the printed circuit board and receiving a commercial AC power, and converting the voltage of the commercial AC power into a DC supply voltage;
A shield plate connected to a shield plate connection node formed on the printed circuit board by a wire;
A space potential detector disposed on the printed circuit board and connected to the shield plate connection node to detect a space potential formed on the shield plate;
Disposed on the printed circuit board, operated with the DC supply voltage, and checking whether the detected space potential falls within a range of a hot potential connection range, a cold potential connection range, and an intermediate potential connection range;
If the space potential corresponds to the hot potential connection range or the cold potential connection range, and controls to display a signal indicating that the voltage of the commercial AC power supply is a normal voltage,
A control unit which controls to display a signal indicating that the voltage of the commercial AC power supply is a neutral voltage when the space potential corresponds to an intermediate potential connection range;
A case in which a hollow is formed and the printed circuit board is disposed in the hollow;
A first power line connected to an AC1 terminal of the printed circuit board;
A second power line connected to an AC2 terminal of the printed circuit board;
An interface connected to the first power line and the second power line; And
A shielding plate connecting line connecting the printed circuit board and the shielding plate,
The case,
A body having a lower portion and having a space forming the hollow and having a groove for protruding the first power line and the second power line to the outside of the case; And
It is detachably coupled to the body, and when coupled with the body includes a bottom plate to cover the lower portion of the body and to cover the groove of the body to form a hole in the case,
The first power line and the second power line protrude outwards through the holes of the case and are connected to the interface.
The shield plate is attached to the upper part of the case bottom plate is fixed to the lower portion of the printed circuit board, the shield plate connecting line is located inside the hollow of the case, the space potential detected by the space potential detection unit is the shield plate and the printed circuit board Power supply type identification device for indicating the type of the commercial AC power supply, characterized in that the AC voltage between the ground. The method of claim 1,
And a display unit for displaying a signal indicating the normal voltage or a signal indicating the neutral voltage under the control of the control unit. The method of claim 1,
The space potential detection unit,
A first resistor having one end connected to the shield connection node;
A first capacitor having one end connected to the other end of the resistor;
A first diode having an anode connected to the other end of the capacitor;
A second diode having an anode grounded and a cathode connected to the other end of the capacitor;
A second resistor having one end connected to the cathode of the first diode and the other end connected to the controller;
A second capacitor having one end connected to one end of the second resistor and the other end grounded;
A third capacitor having one end connected to the other end of the second resistor and the other end grounded;
And a third resistor having one end connected with the other end of the second resistor and the other end connected with the other end of the third capacitor. The method of claim 1,
And a ground type of the power supply unit and the ground potential detection unit are connected to each other on the printed circuit board. delete

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