KR101904652B1 - smart electric range - Google Patents

Abstract

The present invention relates to a hybrid electric range determining a material an object to be heated by moving a heating source regardless of a size and position of an object to be heated and performing heating by selecting direct heating or indirect heating. According to the present invention, the hybrid electric range comprises: a body capable of placing an object to be heated on an upper plate; at least one heating source provided to be movable in the body and heating the object to be heated; a sensing unit determining a size and position of the object to be heated; a driving unit moving at least one of the heating sources according to the size and position of the object to be heated, which is sensed by the sensing unit; and a control unit controlling the driving unit to move the heating sources according to the size and position sensed by the sensing unit.

Description

Smart electric range {smart electric range}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smart electric range, and more particularly, to a smart electric range which can be cooked even when various kinds of heated objects are placed on a desired position.

In recent years, when the gas range is used, the gas is incompletely burned and the harmful substance to the human body is dispersed into the air to adversely affect the human body, or the gas is conveyed in the compressed state. There is a risk of fire due to gas leakage and explosion. The efficiency of the fuel transfer is low, and the interest in the electric range is increasing.

An electric range is a device that converts electric energy into heat energy to cook food contained in the heating body. It can solve the danger of harmful substances, gas explosion and gas leakage which are pointed out as a problem of gas range, Unlike the gas range, the electric range has a simple appearance, especially a flat top, and is installed in a built-in manner, which is advantageous for an interior of a room.

An electric range is divided into an induction heater that heats through a high frequency magnetic field using induction heating according to a heating method, and a highlight heater that transfers heat by directly heating a heating plate using electric resistance.

As the induction heater is powered on, a high-frequency voltage of a predetermined magnitude is applied to a working coil to generate a magnetic field around the working coil, and a magnetic field line of the induced magnetic field generates eddy current Eddy current) is generated and the object to be heated is heated, thereby cooking is performed.

In the highlight heater, when a predetermined power source is applied to a heating coil, and radiant heat of high temperature is emitted by the heat generated by the heating coil itself, radiant heat radiated from the heating coil is directly transmitted to the heating target.

In the highlighting method, only the object to be heated is made of a non-metallic material. In the induction method, only the object to be heated is usable. Therefore, there is a problem that the user has to limit the selection of the cooking container.

To solve the above problem, a hybrid electric range (Korean Patent No. 10-1363250) combining an induction method and a highlight method has been developed.

However, in the hybrid system of the related art, when the user selects the heating system according to the type of the heating target, a portion where the power is turned on and the heating target is determined and the size of the heating target is smaller than the size of the heating source Unnecessary power consumption is generated by heating the portion other than the portion where the heating source is placed. When the heating target is larger than the heating source, the heating source can not heat the entire heating target, There is a problem that the time is lengthened.

Korean Registered Patent No. 10-1339945 (Registered on December 4, 2013) Korean Patent Laid-Open No. 10-2016-0004224 (published on January 12, 2016) Korean Registered Patent No. 10-1363250 (registered on Feb. 26, 2014)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electric range in which a heating target is effectively heated by reflecting the size and shape of the heating target.

In addition, by selectively applying the heating method depending on the material of the object to be heated, it is possible to have a heating characteristic irrespective of the type, and the optimal heat energy is transmitted And to provide an electric range that can increase efficiency.

According to an embodiment of the present invention, there is provided a smart electric range comprising: a body on which an object to be heated can be placed; At least one heating source movably provided in the main body and heating the heating target; A sensing unit for determining an area, a weight, a position, and a material of the object to be heated; A driving unit for moving at least one of the heating sources according to an area and a position of the heated body sensed by the sensing unit; And a controller for controlling the driving unit to move the heating source according to an area and a position sensed by the sensing unit.

Further, the at least one heating source may have the same or different sizes.

Further, the heating source has both a highlighting method which is a heating member directly to one heating source and an induction method which is an indirect heating member. In the highlighting method, a heating coil is formed in a ring shape inside the heating source, The heating coil can be formed in a ring shape inside the heating source and the working coil can be configured to surround the heating coil outside the heating coil in the form of a ring having a size larger than that of the heating coil.

The controller controls the number of driving sources and the driving position of the heating source in accordance with the area of the heating target. When the material of the heating target is a metal, the heating is heated in an induction manner. The heating target can be heated in a highlight manner.

In addition, the heating source may be three-dimensionally driven in a three-dimensional form by the driving unit under the control of the control unit.

When the size of the heating target is larger than the size of the heating source, the heating source among the plurality of heating sources is sequentially positioned in the center of the lower end of the heating target, Can be controlled so that one or more of them is positioned at the lower end of the heated target within a range where they do not overlap.

According to the present invention, since the induction heater and the highlight heater are used together in one heating source, the user can use the same without discriminating the container as the existing gas range, thereby increasing the convenience. By sensing the area and position of the sieve, by sensing the type of the object to be heated by the magnetic sensor, the control unit implements the heating method suitable for the object to be heated through the heating source, The food can be cooked by reflecting the size and shape of the object to be heated, thereby improving the efficiency of cooking.

In addition, depending on the area of the object to be heated, a large number of heating sources can be used or a heating source suited to the area can be used to efficiently utilize the energy, thereby reducing the consumption of electricity and reducing the time required for heating.

1 is a perspective view showing a configuration of an electric range according to a preferred embodiment of the present invention.
2 is a view showing a structure of a heating source according to a preferred embodiment of the present invention.
FIG. 3 is a flowchart showing a step of performing heating in the presence of one heating object according to a preferred embodiment of the present invention.
4 is a view illustrating a method of heating one heating target larger than the heating source according to the preferred embodiment of the present invention using a plurality of heating sources.
FIG. 5 is a flowchart showing a step of performing heating in the presence of a plurality of heated objects according to a preferred embodiment of the present invention.
6 is a view illustrating a method of heating a plurality of heated objects according to a preferred embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate the understanding of the present invention, the same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a perspective view showing a configuration of an electric range according to a preferred embodiment of the present invention.

1, an electric range main body 100 includes an upper plate 120 on which a heating target 110 is placed and a lower plate 120 on which a material, an area, and a position of the heating target 110 are detected A heating unit 150 which is disposed in the main body 100 and is capable of heating the heating target body 110 and a position of the heating target 110 sensed by the sensing unit 130, The driving unit 140 moves the heating source 150 according to the position and area of the heating target 110 sensed by the sensing unit 130 and the driving unit 140 that moves the heating source 150 according to the area, 150) to be moved.

The main body 100 forms an outer appearance of the cooking appliance, and the upper portion has a structure covered with the upper plate 120. When the cooker is a cooktop, the upper plate 120 is preferably formed of glass-ceramic, but is not limited thereto.

It is preferable that an operating unit (not shown) for operating the cooking apparatus is provided on the upper plate 120 or the side surface of the main body 100. In addition, a heating source 150 and / The sensing unit 130 may be positioned at any position of the main body 100 such as the lower end of the upper plate 120 or the lower end of the driving unit 140 according to the embodiment.

The heating source 150 is provided in the body 100 and has the same or different sizes. Each heating source is composed of a heating coil and a working coil, and selectively uses highlighting and induction heating do. The heating source 150 is disposed on the upper plate 120 by moving the heating target 110 through the driving unit 140 under the control of the controller 160 when the heating target 110 is placed on the upper plate 120, And the heating is performed through a direct heating method or an indirect heating method.

The sensing unit 130 senses the position, area, material and the like of the heated object 110 and senses the position, area, material, and the like by using a pressure sensor 131, a magnetic sensor 132, and the like .

The pressure sensor 131 determines the position and the area of the heating target 110 in the pressure sensor 131 when the heating target 110 is placed on the upper plate 120, The control unit 160 determines the required heating area for heating the heating target 110 and drives the heating source 150 by the required number of times by driving the driving unit 140 Followed by heating.

When the heating target 110 is placed on the upper plate 120, the magnetic sensing sensor 132 determines the material of the heating target 110 from the magnetic sensing sensor 132 and classifies the heating target 110 into metal or non- do. When the heating target 110 is of a metal type, power is applied to a working coil of the heating source 150 to heat the heating target 110 in an induction manner. When the heating target 110 is a non-metallic type, 150 are heated by heating in a highlighting manner.

2 is a diagram showing the structure of the heating source 150 according to the embodiment of the present invention. The inside of the heating source 150 is constituted by using two types of coils. The outer concentric first coil 220 is composed of a heating coil to directly heat the heating target 110, And a heating method in which high temperature radiant heat due to heat generated by the coil itself is emitted by the heating coil to directly heat the heating target 110. The second coil 210 in the form of a concentric circle is constituted by a working coil and generates a magnetic field when power is applied thereto to generate eddy current in the bottom of the heating target 110, ) Is heated by an induction method.

FIG. 3 is a flowchart showing a step of performing heating in the presence of one heating object according to a preferred embodiment of the present invention. FIG. Is heated by using a plurality of heating sources.

1) for heating one heated body 110, the sensing unit 130 (shown in FIG. 1) is placed on the top plate 120 (S310).

The pressure sensor 131 (see FIG. 1) operates to calculate an area and a position of the heated body 110 (S320) when the sensing unit 130 recognizes the heated body 110. FIG.

The controller 160 (shown in FIG. 1) calculates an area required for heating the heated body 110 by using the area and position of the heated body 110 calculated by the pressure sensor 131 (S330).

The control unit 160 (shown in FIG. 1) controls the driving unit 140 (shown in FIG. 1) corresponding to the area and the position calculated by the control unit 160 so that the heating source 150 (S340).

4, the heating source 150 sequentially moves from the largest first heating source 151, and the largest first heating source 151 moves from the center of the lower end of the heating target 110 The second heating source 152-155 sequentially moves from the second heating source 151 to the vicinity of the first heating source 151 in order of the size of the heating source area, Thereby maximizing the heating efficiency and saving the time and power required for the cooking.

After the heating sources 151-155 move, the sensing unit 130 determines the material of the heating target 110 using the magnetic sensor 132 (see FIG. 1) (S350 ).

If it is determined that the material of the heating target 110 is a metal or a nonmetal material, the sensing unit 130 may use an induction method when the metal is a metal or a power source to use a highlighting method when the metal is a non- (S360).

After the heating method is determined in step S360, the heating sources 151 to 155 heat the heating target 110 (S370).

5 to 6 are a flow chart and an exemplary diagram showing a step of performing heating in the presence of a plurality of heated objects according to another embodiment of the present invention.

When the first heating target 111 is placed on the upper plate 120 (shown in FIG. 1) to heat the first heating target 111, the sensing unit 130 (shown in FIG. 1) 1, the presence of the heating target 111 is recognized (S510).

The sensing unit 130 operates the pressure sensor 131 (see FIG. 1) to calculate the area and position of the first heating body 111 when the first heating body 111 is recognized (S520 ).

The controller 160 (shown in FIG. 1) calculates the area required to heat the first heating target 111 by using the area of the first heating body 111 calculated by the pressure sensor 131 (S530).

The control unit 160 determines whether another second heating target 112 is being heated on the upper plate 120 before the first heating target 111 is placed in operation S540.

If the second heating target 112 is being heated by using the heating source 150, the presence or absence of the unheated heating source in the heating source 150 is checked (S550).

The control unit 160 receives the area and position information of the first heating target 111 sensed by the sensing unit 130 and determines whether the heating source 150 is usable And sequentially moves from the largest order to the lower end of the first heating target 111 through the driving unit 140 (S560).

If there is no unheated heating source, the controller 160 determines whether the second heating target 112 is using two or more heating sources 150, and if two or more heating sources are used And one of them can be moved to the first heated object 111. [

Further, when there are no heating sources that are not used because a large number of heated objects are being heated, the user is informed through a message such as sound or illumination that the object can not be heated, and then the operation is waited for.

When the heating source 150 moves, the sensing unit 130 determines the material of the first heating body 111 using the magnetic sensor 132 (FIG. 1) (S570).

As a result of the determination by the sensing unit 130, it is determined whether the material of the first heating target 111 is made of a metal or a nonmetal material. In case of metal, an induction method is used. In the case of a nonmetal, Power is applied (S580).

After the heating method is determined in step S580, the heating source 150 heats the first heating target 111 (S590).

The features, structures, effects and the like described in the foregoing embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong.

Therefore, it should be understood that the present invention is not limited to these combinations and modifications. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified and implemented. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

100:
110:
120: top plate
130:
140:
150: heating source
160:
210: Working coil
220: Heating coil

Claims (8)

An electric range for heating a cooking container,
A body capable of placing a heating target on an upper plate;
At least one heating source movably provided in the main body and heating the heating target;
A sensing unit for determining an area, a position, and a material of the heating target;
A driving unit for moving at least one of the heating sources according to the size and position of the heated body sensed by the sensing unit; And
And a controller for controlling the driving unit to move the heating source according to the size and position sensed by the sensing unit,
Wherein the sensing unit comprises a pressure sensor for sensing a position and an area of the heating target. The method according to claim 1,
The at least one heating source has a different size from each other,
Wherein the driving unit moves at least one heating source through two-dimensional free driving to a position of the heating target sensed by the sensing unit when the heating target is placed on the main body. The method according to claim 1,
Wherein the heating source has a highlighting method which is a direct heating member to one heating source and an induction method which is an indirect heating member. The method of claim 3,
The highlighting scheme uses a heating coil,
The induction system is constructed using a working coil,
And the working coil constitutes the heating source in such a manner that the heating coil surrounds the heating coil. The method according to claim 1,
Wherein the sensing unit is further configured to include a magnetic sensor to sense a material of the heating target. 6. The method of claim 5,
Controlling the number of driving and the driving position of the heating source according to the area and position of the heating target,
Wherein when the material of the heating target is a metal, the heating target is heated in an inductive manner, and when the heating target is a nonmetal, the heating target is heated in a highlight manner. The method according to claim 1,
The control unit may determine an area required for heating based on an area of the heating target based on the determination of the sensing unit,
Wherein the driving unit moves the heating source by a required number of times through three-dimensional driving in a three-dimensional form under the control of the control unit.
The method according to claim 1,
When the size of the heating target is larger than the size of the heating source, the heating source is sequentially positioned in the lower center of the heating target from the larger size order among the plurality of heating sources, Wherein at least one additional heating source is located at a lower end of the heating target.

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