KR101910614B1 - Device and method for controlling temperature - Google Patents

Abstract

A temperature regulator and a temperature control method of a warmer are disclosed. According to an embodiment of the present invention, the temperature regulator comprises: a power supply unit for receiving a commercial alternating current voltage to convert the commercial alternating current voltage into a direct current voltage and to output the direct current voltage; a high frequency output unit for outputting a high frequency signal at an input voltage; a temperature control unit for controlling the temperature of a heating mat through the direct current voltage supplied by the power supply unit and a high frequency output by the high frequency output unit; and a switch for being connected to a ground plate when the switch is touched by a user, and discharging a charge to the connected ground plate to prevent static electricity generation.

Description

TECHNICAL FIELD [0001] The present invention relates to a temperature control device,

And more particularly, to a method for preventing static electricity and an automatic temperature control in a thermal mat.

Unless otherwise indicated herein, the contents set forth in this section are not prior art to the claims of this application and are not to be construed as prior art to be included in this section.

Generally, when the indoor floor is cold due to low temperature such as during the season or winter, use a warm mat to keep it warm at a certain temperature.

 In general, the temperature controller in use is provided with a function for blocking harmful electromagnetic waves to the human body, a function for suppressing the occurrence of fire due to overheating, and a mode for selecting sleeping or normal use, As shown in Fig. Particularly, in the past, static electricity and electromagnetic waves of the heating mat are cut off, and components such as an adapter are separately used for heat generation and high frequency output of the heating mat.

However, the circuit structure constituted to perform such a complex function in the thermal mat has a problem in that the manufacturing cost is increased due to the complicated structure. In addition, as the circuit structure becomes complicated, accurate temperature control and power control become difficult. Further, as the circuit structure becomes more complicated, the amount of charge accumulated in the heating mat increases, and the frequency of static electricity is further increased in the dry winter where the heating mat is mainly used.

1. Korean Patent Registration No. 10-1467151 (December 1, 2014) 2. Korean Patent Registration No. 10-0938713 (2010.01.25)

Provides a temperature control device and a heating mat control method that prevent the generation of static electricity in the winter heat mats and automatically control the temperature of the heat mats by sensing the accumulated charge amount and the user's use time according to the user operation, do.

The temperature controller includes: a power supply unit that receives a commercial AC voltage and converts the AC voltage into a DC voltage; A high frequency output unit for outputting a high frequency signal at an input voltage; A temperature controller for controlling the temperature of the heating mat through a direct current voltage supplied from the power supply unit and a high frequency output from the high frequency output unit; A charge amount calculation unit for sensing a current supplied from a power supply unit and a current supply time, calculating a charge amount accumulated according to the sensed current and a current supply time, and outputting a user control command according to the accumulated charge amount; And a switch for preventing the generation of static electricity by releasing the electric charge accumulated in the contacted ground plate when the touch is made by the user, in order to release the amount of electric charge accumulated in the temperature regulating device; .

A method of controlling a heating mat according to another embodiment includes the steps of: (A) receiving a set temperature of a heating mat at a temperature control unit and switching the heating mat to an on state; (B) sensing a current and time supplied to the heating mat after switching from the ON state to the ON state, calculating an amount of charge accumulated in the heating mat according to the sensed current and the time value; (C) raising the temperature of the heating mat to the maximum temperature when the maximum temperature is calculated in accordance with the set temperature in the temperature control unit; (D) outputting the thermal mat control operation information for discharging the charge amount when the amount of charge accumulated in the thermal mat exceeds the amount of chargeable static electricity in the charge calculating unit; And (E) maintaining the temperature of the heating mat at a predetermined temperature after a predetermined time since the temperature is gradually lowered from a maximum temperature in the temperature control unit; .

The temperature control device and the heating mat control method as described above calculate the accumulated charge amount according to the use time of the heating mat and the current to output a user operation signal for releasing the accumulated charge amount when the accumulated charge amount is equal to or higher than a certain level, The user can conveniently control the temperature of the heating mat by sensing the set temperature and presence or absence of the user, thereby improving the user's convenience. It also keeps the set temperature while using the warm mat, reduces the temperature while the warm mat is not in use, or automatically turns off the power to improve the safety and convenience when using the warm mat.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a block diagram showing a data processing block of a temperature control apparatus according to an embodiment
2 is a view showing a circuit board of the temperature control device according to the embodiment
3 is a view showing a data processing block of the temperature control unit according to the embodiment
4 is a diagram showing a data processing block of the charge amount calculating unit 400 according to the embodiment
5 is a graph showing the temperature change of the heating mat by the temperature control device according to the embodiment
6 is a view showing a data processing flow of the method of controlling the temperature of the thermal mat according to the embodiment
7 is a view showing a data processing flow of the method of controlling the heating mat according to the embodiment

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like numbers refer to like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

1 is a block diagram showing a data processing block of a temperature controller according to an embodiment.

Referring to FIG. 1, the temperature control apparatus according to the embodiment may include a switch 20, a power supply unit 100, a temperature control unit 200, a high frequency output unit 300, and a charge amount calculation unit 400 have.

When the user controls the thermostat power supply through the switch 20, the power supply unit 200 supplies power to the thermostat according to the switch control. In the embodiment, the power supply unit 200 receives the commercial AC voltage, converts the AC voltage into a DC voltage, and outputs the DC voltage.

The switch 20 of the heating mat according to the embodiment includes a conductor configuration such as a spring touching the ground plate when the switch 20 is pressed so that the accumulated charge is released from the touched ground plate when the user presses the switch Thereby preventing the generation of static electricity in the heating mat.

The high-frequency output unit 300 outputs a high-frequency signal with the power supplied from the power supply unit 100. In the embodiment, the temperature of the carbon fiber of the heating mat can be controlled by heating the carbon fiber through the high frequency.

The temperature controller 200 controls the high-frequency output according to the user-set temperature to adjust the carbon fiber temperature. The temperature control unit 200 may lower the temperature of the hot plate gradually from the initial temperature up to the hot plate heating stop time when the user inputs a hot plate heating stop time (e.g., after 10 hours).

The charge amount calculating unit 400 senses the current supplied from the power supply unit and the current supply time, calculates the sensed current and the accumulated charge amount according to the time, and outputs the user control command according to the accumulated charge amount. for example. The charge quantity calculation unit 400 can output control commands such as 'press switch' for sound discharge as sound or visual information when the accumulated amount of electric charge exceeds the amount of electric charge that can be generated due to the use of the thermal mat.

Fig. 2 is a view showing a circuit board of the temperature control device according to the embodiment.

As shown in FIG. 2, a spring 30 is provided on a circuit board connected to the temperature control device. The spring 30 is grounded to the ground plate when the user presses the switch 30, and discharges the electric charge accumulated in the heating mat through the grounded spring, thereby preventing the generation of static electricity.

3 is a block diagram showing a data processing block of the temperature control unit according to the embodiment.

Referring to FIG. 3, the temperature control unit 200 may include a temperature setting unit 210, a user sensing sensor 230, and a temperature control unit 250.

The temperature setting unit 210 sets the initial temperature of the heating mat by user setting or automatic setting.

The user detection sensor 230 senses the presence or absence of a user using the temperature control device.

The temperature control unit 250 calculates the set temperature of the temperature control device according to the initial temperature and the result of user detection, and adjusts the temperature of the hot plate or the carbon fiber according to the calculated set temperature.

For example, since the heating value of the heating mat is proportional to the current supplied from the power supply unit 100, the resistance of the heating mat, and the heating mat driving time, the temperature control unit 250 can calculate the heating mat temperature have.

Equation (1)

(I (t): current supplied to the heating mat with time, R: heating wire or carbon fiber resistance with time)

In the embodiment, the temperature control unit 250 stops the heating of the carbon fiber or the heating plate according to the time when the heating plate heating stop condition is sensed by the user detection sensor 230, .

In the embodiment, the heat plate heating stop condition is set so that when the user is not sensed for a time period exceeding the first value (for example, 150 minutes) after the initial temperature setting, the time exceeding the second value (15 hours) Lt; RTI ID = 0.0 > control < / RTI >

If the user is not detected, the heat plate heating stop condition is used to stop the heating of the heating plate when the user does not use the heating mat after turning on the heating mat. If the heating mat is not used when the control signal is not detected, This is a condition for stopping the operation.

In addition, the temperature control unit 250 according to the embodiment is configured such that, when the user is not sensed for a time exceeding the first value (for example, 150 minutes) after the initial temperature setting, So that it can be controlled to be lowered.

In addition, the temperature control unit 250 according to the embodiment may set the temperature of the hot plate again to the initial temperature when the user senses during the time between the first value and the second value, or when another control signal is sensed.

4 is a diagram showing a data processing block of the charge amount calculating unit 400 according to the embodiment.

4, the charge amount calculation unit 400 may include a sensor 410, a calculation unit 430, and an output unit 450.

The sensor 410 senses the current supplied from the power supply unit 100 and the current supply time.

The calculation unit 430 calculates the accumulated charge amount with time using the current sensed by the sensor 410 and the current supply time.

For example, the calculation unit may calculate the amount of charge through the formula (2): C (charge amount) = I (current) * t (time), and calculate the amount of charge accumulated in the heat mat via Equation (3).

Equation 3

The output unit 450 outputs a switch push request of the temperature regulating device as sound or visual information in order to discharge the electric charge accumulated in the heating mat when the accumulated electric charge amount calculated in the calculation unit exceeds the electrostatic chargeable electric charge amount.

FIG. 5 is a graph illustrating a temperature change of a heating mat according to an embodiment of the present invention.

In the embodiment, the temperature control unit 200 of the temperature control device controls the temperature of the heating mat so that the temperature of the heating mat increases to the set temperature (K) as quickly as possible when the user turns on the heating mat at time T1. In the embodiment, in order to raise the temperature of the heating mat as quickly as possible, the heating mat temperature is raised to a value exceeding the set temperature (for example, 1.2 K), and then the heating mat temperature is gradually lowered to set the heating mat temperature So that it can be maintained continuously.

In the embodiment, the temperature controller 200 sets the maximum temperature (for example, 1.2K), the 1.1 multiple of the set temperature (1.1K) and the time values T2, T3, T4, and T5) are extracted to calculate the functional relationship between temperature and time. Generally, the maximum temperature and each time value can be set automatically according to the set temperature (K), but can be set by the user himself. Thereafter, the temperature of the heating mat is adjusted according to the result of the function calculation calculated by the temperature and the time value. As a result, the temperature rises as quickly as possible after turning on the heating mat, and is maintained for a predetermined time at a predetermined temperature set by the user after the temperature rises, so that the heating mat can be automatically turned off after a predetermined time.

6 is a view showing a data processing flow of the temperature control method of the thermal mat according to the embodiment.

In step S110, when the temperature control unit 200 reads the initial set temperature value and the heating mat start signal is input in step S120, the temperature of the hot plate or the carbon fiber of the heating mat is increased. In step S130, the initial set temperature and the hot plate temperature are compared.

If the heat plate temperature is lower than the set temperature, the process proceeds to step S140 to continue the heat plate heating. If the heat plate temperature is higher than the set temperature, the process proceeds to step S150 and the heat plate heating is stopped.

In step S160, it is confirmed whether or not the end button is input. If the termination signal is input, the process returns to step S120 and the temperature of the heating plate is maintained at the set temperature when the heating mat is restarted. If the end button is not input in step S160, the touch time of the temperature setting button is measured in step S170. If the temperature setting button touch time is equal to or less than a predetermined time (for example, 45 seconds), the process advances to step S180 to set the temperature value again. If the temperature value is set again, the process proceeds to step S130 so that the hot plate temperature is maintained at the set temperature value again.

If the temperature setting button touch time exceeds a predetermined time (for example, 45 seconds), the process goes to step S190 to display an error indication and stop the heating of the heating plate.

Thereafter, in step S200, it is confirmed that the input release signal has been inputted. If the input release signal is inputted, the process goes to step S120 and the temperature of the heating mat is adjusted again. If the input cancel signal is not input in step S200, the process proceeds to step S190 where an error signal is displayed and the heating of the heating plate is stopped.

7 is a view showing a data processing flow of the method of controlling the heating mat according to the embodiment.

In step S510, the charge amount calculating unit 400 detects the current supplied to the heating mat and the current supply time.

In step S530, the amount of charge accumulated in the heating mat is calculated using the detected supply current and time.

In step S550, it is determined whether the accumulated charge amount exceeds the preset amount of chargeable electrostatic charge.

If the accumulated charge amount exceeds the preset electrostatic chargeable charge amount, a switch push request signal for cumulative charge release is output in step S570. If the accumulated charge amount is less than the preset electrostatic chargeable charge amount, the process goes back to step S530 to calculate the accumulated charge amount of the heating mat.

In step S590, it is checked whether accumulated charges are discharged. When the charge amount is extracted by the switch operation of the user, the charge amount calculating unit 400 resets the calculated accumulated charge amount, and proceeds to step S510 to calculate the accumulated charge amount of the thermal mat again from the reset time.

The temperature control device and the warming mat control method as described above prevent the inconvenience caused by the static electricity when the heating mat is used by adding the anti-static function, and can accurately control the temperature of the heating mat by sensing the set temperature and existence of the user can do. It also keeps the set temperature while using the warm mat, reduces the temperature while the warm mat is not in use, or automatically turns off the power to improve the safety and convenience when using the warm mat.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It is not limited to the embodiment.

200:
210: Temperature setting unit
230: User detection sensor
250: Temperature control unit

Claims (13)

In the temperature control device,
A power supply unit for receiving and converting a commercial AC voltage into a DC voltage;
A high frequency output unit for outputting a high frequency by using the input voltage;
A temperature controller for controlling the temperature of the heating mat through a direct current voltage supplied from the power supply unit and a high frequency output from the high frequency output unit;
A charge amount calculation unit for sensing the current supplied from the power supply unit and the current supply time, calculating a charge amount accumulated according to the sensed current and the current supply time, and outputting a user control command according to the accumulated charge amount; And
A switch for contacting the ground plate when the touch is touched by a user and discharging the accumulated electric charges to the contacted ground plate in order to release the amount of electric charge stored in the temperature regulating device, thereby preventing the generation of static electricity; .
The apparatus according to claim 1, wherein the charge amount calculating unit
A sensor for sensing a current supplied from the power supply unit and a current supply time;
A calculation unit for calculating an accumulated charge amount with time using the sensed current and the current supply time;
An output unit for outputting the switch push request information of the temperature regulating device when the accumulated charge amount calculated by the calculation unit exceeds the chargeable electrostatic charge amount; And a temperature control unit for controlling the temperature of the heating unit.
3. The apparatus according to claim 2, wherein the charge amount calculating section
Wherein when the charge is released by the user's switch control, the charge amount of the temperature regulating device is reset and the amount of charge accumulated in accordance with the current supplied from the point in time when the charge amount is reset and the current supply time is calculated again. .
The apparatus of claim 1, wherein the temperature control unit
A temperature setting unit for setting an initial temperature of the heating mat;
A user detection sensor for detecting presence or absence of a user using the heating mat;
A temperature control unit for calculating a set temperature of the heating mat according to the initial temperature and the user detection result and adjusting the temperature of the heating mat so that the calculated set temperature is maintained for a predetermined time; And a temperature control unit for controlling the temperature of the heating unit.
5. The apparatus of claim 4, wherein the temperature controller
A heating plate heating step of heating the heating plate to a predetermined temperature after the initial temperature setting by the user detection sensor when the user is not sensed for a time exceeding the first value, Wherein the heating of the heating plate is stopped or the temperature of the heating plate is adjusted when the stopping condition is sensed.
5. The apparatus of claim 4, wherein the temperature controller
Wherein the controller controls the temperature of the hot plate to be gradually lowered after the timeout of the first value when the user is not sensed for a time exceeding the first value after the initial temperature setting.
5. The apparatus of claim 4, wherein the temperature controller
And sets the temperature of the hot plate again to the initial temperature when the user senses during the time between the first value and the second value or when the control signal is sensed.
The apparatus of claim 1, wherein the temperature control unit
Wherein when the heating stoppage time is input, the temperature of the hotplate is gradually lowered from the initial temperature up to the heating stoppage time.
A method for controlling a heating mat,
(A) inputting a set temperature of a heating mat at a temperature control unit and switching the heating mat to an on state;
(B) sensing a current and time supplied from the charge amount calculating unit to the heating mat after the on-state transition, and calculating an amount of charge accumulated in the heating mat according to the sensed current and the time value;
(C) raising the temperature of the heating mat to a maximum temperature when the maximum temperature is calculated in accordance with the set temperature in the temperature control unit;
(D) outputting the thermal mat control operation information for discharging the charge quantity when the amount of charge accumulated in the thermal mat exceeds the amount of chargeable static electricity in the charge calculating unit; And
(E) maintaining the temperature of the heating mat at a predetermined temperature after a predetermined time after the temperature is lowered gradually from the maximum temperature in the temperature control unit; And a control unit for controlling the heating mat.
The method of claim 9, further comprising the steps of: (D) outputting thermal mat control operation information for discharging a charge amount when the amount of charge accumulated in the thermal mat exceeds a static chargeable charge amount in the charge amount calculation unit; The
Wherein when the charge is released by the user's switch control, the charge amount of the temperature control device is reset and the amount of charge accumulated in accordance with the current supplied from the time when the charge amount is reset and the current supply time is calculated again.




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