KR102027118B1 - An eletric range with display of temparature and power consumption - Google Patents

Abstract

A temperature range and power consumption display function for displaying the temperature of the crater operated in the electric range and the power consumed by the crater, the electric range comprising a plurality of heating elements; A heater unit configured of a plurality of heaters for heating the heating element, each heating element being configured to heat with at least one corresponding heater; A relay unit configured to supply or cut input power to each heater, the relay unit controlling a heater by corresponding to one relay to each heater; A sensor unit including at least one temperature sensor installed at a center of each of the heating elements and configured to measure temperature; An input unit for selecting a heating element to be heated from among a plurality of heating elements or inputting a heating or heating size of the selected heating element; A display unit displaying temperature and power consumption or cumulative power consumption; And a control unit controlling the size of the heating element selected by the input unit, or calculating a power consumption or cumulative power consumption of the heating element and displaying the same through the display unit.
By the electric range as described above, by displaying the temperature and power consumption generated in each crater of the electric range, the consumer can check the current temperature and power consumption of the crater to effectively use the electric range, can be used for cooking have.

Description

Electric range with temperature and power consumption display {An eletric range with display of temparature and power consumption}

The present invention relates to an electric range having a temperature and power consumption display function for displaying the temperature of the fireball operated in the electric range and the power consumed in the fireball.

In general, an electric range is an environmentally friendly heating cooker that cooks food by heating a highlight (or a heating element such as a heater coil burner) by electricity. Unlike gas ranges, electric ranges do not have a risk of gas explosion due to gas leaks, and they can have a simple appearance (flat appearance), which is installed and built-in on the top of sinks or electric ovens. do.

As disclosed in Patent Literature 1, the electric range has a flat appearance at the top, and is composed of a plate on which cooking utensils such as a pot is placed and a body provided with a plate at the top. On the upper surface of the body, a plurality of different sized highlights (or heating elements) and an operation unit including a touch key for operating the electric range and a display unit for displaying the electric range operation state, and the body has a built-in microcomputer for electric range operation control. .

However, such electric ranges consume more power than other household appliances (eg, air conditioners). Therefore, electric ranges are more expensive to maintain than gas due to the electric progression tax, and if you go beyond the boundary of the electric progression tax, you can receive the so-called electric charge bomb.

In order to solve such an excessive power consumption problem, techniques for limiting power consumption in an electric range have been proposed [Patent Document 2]. The prior art sets the limit power consumption in advance, and calculates the current cumulative power consumption by accumulating the power consumption. When the cumulative power consumption exceeds the predetermined limit power consumption, the power supply is cut off to stop the operation of the electric range. Moreover, the technique which limits the maximum output power consumption of the highlight (or the heat generating body, such as a burner) in operation is also proposed (patent document 3). The prior art limits the maximum power value if the power consumption of the highlight in operation exceeds the control power consumption.

However, according to the prior arts, the use of the electric range may suddenly stop the operation of the electric range or the fire power may decrease. In this case, it can be very embarrassing for the consumer.

On the other hand, since the cooking speed is slower than that of the gas range, the electric cooker often has a question whether the temperature is appropriate. That is, since the consumer does not know the current state of the electric range, it may be very inconvenient to use and may be dissatisfied with the use of the electric range.

Korean Patent Publication No. 10-2012-0130675 (2012.12.03.) Korea Patent Registration No. 10-1586749 (January 20, 2016) Korea Patent Registration No. 10-1500550 (As of March 10, 2015)

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems described above, and to provide an electric range having a temperature and power consumption display function that displays the temperature of the fireball operated in the electric range and the power consumed in the fireball. .

In order to achieve the above object, the present invention relates to an electric range having a temperature and power consumption display function, a plurality of heating elements; A heater unit configured of a plurality of heaters for heating the heating element, each heating element being configured to heat with at least one corresponding heater; A relay unit configured to supply or cut input power to each heater, the relay unit controlling a heater by corresponding to one relay to each heater; A sensor unit including at least one temperature sensor installed at a center of each of the heating elements and configured to measure temperature; An input unit for selecting a heating element to be heated from among a plurality of heating elements or inputting a heating or heating size of the selected heating element; A display unit displaying temperature and power consumption or cumulative power consumption; And a control unit controlling the size of the heating element selected by the input unit, or calculating the power consumption or the cumulative power consumption of the heating element and displaying the same through the display unit.

In addition, the present invention, in the electric range having a function of displaying the temperature and power consumption, the control unit controls the heater to the size of the selected power by controlling the switching on (on) / off (off) of the relay of each heater The power consumption of each heater is calculated by multiplying the size of the power supplied to the heater by the switching ratio, and the power consumption of the heating element is calculated by summing the power consumption of the heater supplied to the heating element. It features.

In addition, the present invention is an electric range having a function of displaying the temperature and power consumption, the control unit calculates the power consumption W _i (t) of the heating element i at the time point t of the heating element using It is characterized by.

[Equation 1]

However, H _i represents the index of the heaters supplied to the heating element i, U _k is the magnitude of the power supplied to the heater k, R _k (t) represents the switching ratio of the adjustment step of the heater k at the time t.

In addition, according to the present invention, in the electric range having a temperature and power consumption display function, the control unit calculates the cumulative power consumption W _i ^* consumed up to the present time T after driving the heating element i by the following equation (2). It features.

[Formula 2]

As described above, according to the electric range having a temperature and power consumption display function according to the present invention, by displaying the temperature and power consumption generated in each crater of the electric range, the consumer confirms the current temperature and power consumption of the crater This makes it possible to effectively use the electric range and obtain an effect that can be suitably used for cooking.

That is, the consumer can know how much temperature and how much power is consumed when cooking which food, so that the cooking stage can be set more accurately when cooking. In addition, since it is possible to know how much power is consumed when used to some extent, the amount of electric range used can be adjusted accordingly.

In addition, by visually confirming the current temperature and power consumption of the electric range, the consumer can wait uncomfortably even when the cooking speed is slow.

1 is a view showing a logical configuration of an access control system according to the prior art.
Figure 2 is a functional configuration for detecting abnormal users of the access control system according to the prior art.
Figure 3 is a diagram illustrating in detail the encrypted protocol access control process by the access control system according to the prior art.
4 is a block diagram of an entire system for implementing the present invention.

DETAILED DESCRIPTION Hereinafter, specific contents for carrying out the present invention will be described with reference to the drawings.

In addition, in describing this invention, the same code | symbol is attached | subjected and the repeated description is abbreviate | omitted.

First, a configuration of an electric range according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

As shown in Figure 1 and 2, the electric range 100 according to an embodiment of the present invention is installed and used in the built-in (built-in) method on the top plate, such as a sink or an electric oven.

The electric range 100 includes a plate 110 on which cooking utensils, such as a pot, is placed, and a body 120 on which the plate 110 is installed. That is, the electric range 100 has a flat top appearance.

The electric range 100 includes an input unit 122 including a plurality of different sized craters 121 and a touch key for operating the electric range on the upper surface of the body 120, and a display unit 123 displaying the electric range operating state. It is provided.

The crater 121 includes a highlight or heating element such as a heater coil burner. Since each crater 121 is provided with a heating element, the reference numerals of the heating element 121 will be described in the same manner as the crater.

The heating element 121 is heated by the heater 126 heated by electricity to generate heat. Since the heating element 121 has a different size for each crater, the heating element 121 is heated by at least one heater 126, but the number of the heaters 126 may vary. That is, although the number of heaters 126 is one, the number of heaters 126 may be one, but the number of heaters may be two or more.

As shown in FIG. 3, each heater 126 receives an input power source 129, which is connected to or disconnected from the input power source 129 by a relay 127. The relay 127 receives the control signal from the microcomputer (or the controller) 124 to supply or cut off the input power 129.

In addition, the body 120 has a microcomputer 124 (or a control unit, the same reference numerals as the control unit) for electric range operation control is built therein. In addition, as shown in Figure 2, the temperature sensor 125 is installed in the center of the heating elements 121, respectively, to measure the temperature of the heating element or each crater.

As shown in FIG. 1, the electric range 100 including the touch key input unit 122 preferably uses a capacitive touch key. In FIG. 1, four heating elements 121 having four sizes are illustrated. It can be configured to include one or two, three or more heating elements 121 of different sizes.

The touch key input unit 122 basically includes a power key, a heating element selection key (or a fireball selection key), a fire power control key, and the like. In addition, the display unit 123 basically includes a heating amount indicator, a temperature indicator, a power consumption indicator, and the like.

On the other hand, as shown in Figure 2, the temperature indicator displays the temperature in three digits, that is, three digits, the power consumption indicator in four digits, that is, four digits, power consumption or cumulative consumption Display power.

The touch keys and the indicators included in the input unit 122 and the display unit 123 of the electric range 100 may be easily and variously implemented at a level of ordinary skill in the art according to an operation control function required in the electric range 100.

Next, a configuration for controlling the heater will be described in more detail with reference to FIGS. 4 to 6.

As shown in FIG. 4, the control unit 124 receives an input key or a measured temperature from the touch key input unit 122 and the temperature sensor 125, and uses the input command or measured value to generate the heating element 121. The heater 126 is controlled. In this case, the switching signal is output to the relay 127 of the heater 126 to supply or cut off the input power 129, and in particular, the heater is controlled through an on / off signal according to a predetermined cycle.

In detail, the control unit 124 is implemented as a microcomputer such as a microprocessor, and receives commands such as fireball selection (or heating element selection) and thermal power control from the touch key input unit 122. In addition, the controller 124 receives the temperature measured from the temperature sensor 125.

In addition, the controller 124 controls the heater 126 for heating the heating element 121 of the corresponding crater when receiving commands such as crater selection and firepower control. At this time, the control unit 124 controls the thermal power by switching the relay 127 of the heater 126.

The relay or switching unit 127 is implemented as a relay for switching to supply or cut off the input power 129 supplied from the outside. For convenience of description, the same reference numerals are used for the relay and the switching unit 127.

In this case, as shown in FIG. 5, the controller 124 generates a switching signal to turn off / on the relay 127 (or the switching unit) to cut off the power, or to turn off the power or the power of the heater. Adjust the strength

In the example of FIGS. 5 and 6, the first heater and the second heater heat the first heating element, and the third heater heats the second heating element. In addition, the fourth heater heats the third heating element.

As shown in FIG. 5, each heater may adjust its heater strength, and at this time, the strength is adjusted by switching control of the relay 127. That is, the on / off is repeated within the switching period (for example, 1 minute), in which the intensity of the heater is adjusted by the time ratio of keeping on in the switching period.

As shown in Figure 5 or 6, the total power supply of the first heater and the second heater is 2,000W. Both the first and second heaters heat the first heating element, which is heated in nine steps and seven steps, respectively. In step 9, only 80% of the entire switching cycle (for example, 1 minute) is turned on and the remaining time is turned off. Therefore, it supplies only 80% of the total supply power at 2,000W. Therefore, the electric power supplied to a 1st heater is 2,000Wx80% = 1,600W. Moreover, the electric power supplied to a 2nd heater is 2,000W x 50% (7 steps) = 1,000W. Therefore, the supply power of the first heater and the second heater is added, and the electric power of 1,600 W + 1,000 W = 2,600 W is supplied to the first heating element.

In addition, since the third heater heats the second heating element, the total supply power is 1,800W, and since the heater heating size is 9 steps, 1,800W x 80% = 1,440W is supplied as power consumption.

As described above, the control unit 124 may calculate the power consumption of the heater by using the power supplied to each heater and the on signal ratio (hereinafter, referred to as a switching ratio) within the switching period according to the size adjustment step. In addition, by summing all the power consumption of the heater supplied to the heating element, it is possible to calculate the power consumption to be supplied to and used by the fireball or the heating element.

That is, the controller 124 calculates the power consumption W _i (t) of the heating element i at the time point t by the following equation (1).

[Equation 1]

Here, H _i represents the index of the heaters supplied to the heating element i, U _k is the magnitude of the power supplied to the heater k, R _k (t) represents the switching ratio of the adjustment step of the heater k at the time point t.

In addition, the controller 124 calculates the cumulative power consumption consumed up to the present time T after driving the heating element i by the following equation (2).

[Equation 2]

W _i ^* is the cumulative power consumption of the heating element i, and W _i (t) is the power consumption of the heating element i at the time point t.

Meanwhile, the controller 124 outputs and displays the power consumption or cumulative power consumption of the heating element i, which has been previously calculated, through the display unit 123. At this time, the power consumption or the cumulative power consumption for the heating element selected by the selection key of the input unit 122 is calculated and output.

In addition, the control unit 124 receives the temperature measured by each heating element i and displays the corresponding temperature through the display unit 123.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

100: electric range 110: plate
120: body 121: heating element, crater
122: input unit 123: display unit
124 control unit 125 temperature sensor
126: heater 127: relay
129 input power

Claims (4)

In an electric range equipped with a temperature and power consumption display function,
A plurality of heating elements;
A heater unit configured of a plurality of heaters for heating the heating element, each heating element being configured to heat with at least one corresponding heater;
A relay unit configured to supply or cut input power to each heater, the relay unit controlling a heater by corresponding to one relay to each heater;
A sensor unit including at least one temperature sensor installed at a center of each of the heating elements and configured to measure temperature;
An input unit for selecting a heating element to be heated from among a plurality of heating elements or inputting a heating or heating size of the selected heating element;
A display unit displaying temperature and power consumption or cumulative power consumption; And,
A control unit controlling the size of the heating element selected by the input unit, or calculating the power consumption or the cumulative power consumption of the heating element and displaying the same through the display unit;
The control unit controls the strength of the heater by switching the on (on) / off (off) of the relay of each heater, and repeats the (on) / off (off) within the switching period, the switching period The strength of the heater is controlled by the time ratio (hereinafter referred to as a switching ratio) to keep on,
The power consumption of each heater is calculated by multiplying the size of the power supplied to the heater by the switching ratio, and the power consumption of the heating element is calculated by summing the power consumption of the heater supplied to the heating element.
The control unit calculates the power consumption W _i (t) of the heating element i at the time point t of the heating element by using Equation 1 below.
[Equation 1]

However, H _i represents the index of the heaters supplied to the heating element i, U _k is the magnitude of the power supplied to the heater k, R _k (t) represents the switching ratio of the adjustment step of the heater k at the time t.
delete delete The method of claim 1,
The control unit calculates the cumulative power consumption W _i ^* consumed up to the present time T after driving the heating element i according to the following equation (2).
[Formula 2]

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