KR101813168B1 - Electric range having free zone - Google Patents
Electric range having free zone Download PDFInfo
- Publication number
- KR101813168B1 KR101813168B1 KR1020150100669A KR20150100669A KR101813168B1 KR 101813168 B1 KR101813168 B1 KR 101813168B1 KR 1020150100669 A KR1020150100669 A KR 1020150100669A KR 20150100669 A KR20150100669 A KR 20150100669A KR 101813168 B1 KR101813168 B1 KR 101813168B1
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- KR
- South Korea
- Prior art keywords
- unit
- working coil
- switching
- working
- coil
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/067—Arrangement or mounting of electric heating elements on ranges
Abstract
The present invention relates to an electric range, comprising: an upper working coil part including a first working coil and a second working coil; a lower working coil part including a third working coil; one input end; and a first working coil An upper relay unit having a first output terminal and a second output terminal respectively connected to the other end of the second working coil and the other end of the second working coil, a first output terminal connected to the other end of the third working coil, An upper switching unit for converting the rectified DC power into a high frequency current and outputting the converted DC power to an input terminal of the upper relay unit; and a control unit for converting the rectified DC power into a high frequency current and inputting the same to the input terminal of the lower relay unit And a control unit for controlling operations of the relay unit, the lower relay unit, the upper switching unit and the secondary switching unit, A plurality of working coils can be selectively operated by using less switching parts and fewer relay parts than a plurality of working coils disposed in the zone area.
Description
The present invention relates to an electric range having a free zone region, and more particularly, to an electric range in which a plurality of working coils can be selectively operated by using a smaller number of switching units and fewer relay units than a plurality of working coils disposed in a freezone region .
In recent years, an induction heating type electric range by a working coil has become widespread. It is general that such an electric range is provided with working coils in corresponding areas for heating each of the plurality of cooking utensils. However, recently, an electric range in which one cooking vessel is simultaneously heated by a plurality of working coils is being marketed.
On the other hand, in order to solve the problem of the plurality of working coils connected in series, the switching unit can be arranged for each working coil, but in this case, the production cost of the electric range will increase due to an increase in the use of expensive switching elements.
In order to solve the above-described problems, it is an object of the present invention to provide an electric range in which a plurality of working coils can be selectively operated by using less switching parts and fewer relay parts than a plurality of working coils disposed in a freezone area .
In order to achieve the above object, an electric range according to an embodiment of the present invention includes an upper working coil part including a first working coil and a second working coil whose ends are connected in common, and a second working coil part including a third working coil An upper relay part having a lower working coil part, an input terminal, and a first output terminal and a second output terminal respectively connected to the other end of the first working coil and the other end of the second working coil, A lower relay part having a first output terminal connected to the other end of the third working coil and a second output terminal connected to a second output terminal of the upper relay part, and a control part for converting the rectified DC power to a high- A lower switching unit for converting the rectified DC power into a high frequency current and outputting the rectified DC power to an input terminal of the lower relay unit, The upper relay unit, the upper relay unit, the lower relay unit, the upper switching unit, and the lower switching unit, respectively.
According to a further embodiment, the apparatus further comprises an upper sensing unit for detecting a high-frequency current flowing in the first working coil or the second working coil, wherein the controller drives the upper switching unit and controls the upper relay unit, It is possible to determine whether the cooking vessel is located in the first working coil region or the second working coil region according to the detection value input from the control unit.
According to a further embodiment, the upper sensing unit may include a first current sensing part and a second current sensing part for detecting a high-frequency current flowing in the first and second working coils, respectively.
According to a further embodiment, the electric range further includes a power supply unit for supplying DC power to the upper switching unit and the lower switching unit, wherein the upper switching unit and the lower switching unit are connected to each other in series And a node of the first switching element and the second switching element may be connected to an input terminal of the upper relay part and an input terminal of the lower relay part, respectively.
According to a further embodiment, the upper switching unit includes a first capacitor and a second capacitor connected in series between the power supply unit and the ground, and the connection point of the first capacitor and the second capacitor is connected to the first working coil or the second switching capacitor, And may be connected to one end side of the second working coil.
According to a further embodiment of the present invention, the control unit may further comprise a control unit for selecting, from detected values inputted from the lower sensing unit for detecting the high-frequency current flowing in the first current sensing part and the second current sensing part of the upper sensing unit, When it is determined that the cooking vessel is located in both the first working coil, the second working coil, and the third working coil, the upper relay unit and the second work coil are controlled to supply high- The lower relay unit can be controlled.
According to a further embodiment, the third working coil is disposed in the middle region of the freezone, and the first working coil and the second working coil are disposed above and / or below the third working coil, From the detection values input from the first current sensing part of the sensing part and from the second current sensing part and from the lower sensing part detecting the high frequency current flowing in the third working coil, the first working coil, the second working coil, The control unit controls the lower relay unit to supply a normal switching current to the third working coil, and controls the lower relay unit so that the first working coil is connected to the first working coil, And the upper relay unit may be controlled such that a switching current is supplied to only one of the first and second working coils.
According to the above-described configuration, the present invention can selectively operate a plurality of working coils by using less switching parts and fewer relay parts than a plurality of working coils disposed in the freezone area.
The present invention can also automatically determine to which region of the plurality of working coils disposed in the freezone area the cooking vessel is located and selectively supply the switching current to the corresponding working coil.
The present invention is also capable of appropriately supplying the switching current to each of the working coils without the control of the excessive relay portion even when the cooking vessel is located in all of the plurality of working coil regions.
1 is a diagram showing an example of the circuit configuration of an induction heating apparatus having a plurality of working coils according to the prior art.
2 is a diagram showing an example of an electric range having a freezone region.
3 is a block diagram of an electric range that can selectively control a plurality of working coils in a freezone region according to an embodiment of the present invention.
Fig. 4 is a circuit diagram implemented in accordance with the block diagram of the electric range shown in Fig. 3; Fig.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the technical scope of the present invention. Will be.
2 is a diagram showing an example of an electric range having a freezone region.
As shown in FIG. 2, a
Although only one
The
3 is a block diagram of an electric range that can selectively control a plurality of working coils in a freezone region according to an embodiment of the present invention.
3, the electric range includes a
The DC power output from the
The
The
The
The
The
The
First, the
The
Finally, the
After the
The
In order to sequentially supply the high frequency current to all the working coils in the case where the cooking vessel is located in all the working coils, the
It should be noted that the terms "upper" and "lower" in the present invention are used to distinguish terms having the same composition as "first" and "second" .
Fig. 4 is a circuit diagram implemented in accordance with the block diagram of the electric range shown in Fig. 3; Fig.
4, the
The first capacitor C1 and the second capacitor C2 are arranged in series between the
The detailed operation is as follows. The
When the third working coil WC1 is to be further driven, the
The embodiments of the present invention described above are merely illustrative of the technical idea of the present invention, and the scope of protection of the present invention should be interpreted according to the claims. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.
200: top surface 210: highlight area
220: free zone area 300: power source part
310: upper switching unit 320: upper relay unit
330: upper working coil part 340: upper sensing part
350: lower switching unit 360: lower relay unit
370: lower working coil part 380: lower sensing part
390:
Claims (7)
A lower working coil part including a third working coil,
An upper relay unit having an input terminal and a first output terminal and a second output terminal respectively connected to the other end of the first working coil and the other end of the second working coil,
A lower relay part having a first input terminal and a second output terminal connected to a second output terminal of the upper relay part, a first output terminal connected to the other end of the third working coil,
An upper switching unit for converting the rectified DC power into a high frequency current and outputting it to an input terminal of the upper relay unit,
A lower switching unit for converting the rectified DC power into a high frequency current and outputting it to an input terminal of the lower relay unit;
And a controller for controlling operations of the upper relay unit, the lower relay unit, the upper switching unit, and the lower switching unit, respectively.
Further comprising an upper sensing unit for sensing a high-frequency current flowing through the first working coil or the second working coil,
Wherein the control unit drives the upper switching unit and controls the upper relay unit to determine whether the cooking vessel is positioned in the first working coil region or the second working coil region according to a detection value input from the upper sensing unit Electric range.
Wherein the upper sensing unit includes a first current sensing part and a second current sensing part for detecting a high-frequency current flowing in the first and second working coils, respectively.
Further comprising a power supply unit for supplying DC power to the upper switching unit and the lower switching unit,
Wherein the upper switching unit and the lower switching unit each include a first switching device and a second switching device connected in series between the power supply unit and the ground and the nodes of the first switching device and the second switching device are connected to the upper relay unit An input terminal, and an input terminal of the lower relay unit, respectively.
Wherein the upper switching unit includes a first capacitor and a second capacitor connected in series between the power supply unit and the ground, and a connection point of the first capacitor and the second capacitor is connected to the first switching coil or the second switching coil And is connected to one end.
The control unit may be configured to detect the first current sensing part and the second current sensing part of the upper sensing unit and the first sensing coil from the detection values input from the lower sensing unit that detects the high- The control unit controls the upper relay unit and the lower relay unit to supply the high-frequency current to the two working coils according to the ratio of the cooking vessel, when it is determined that the cooking vessel is located in both the second working coil and the third working coil Wherein the electric motor is a motor.
The third working coil is disposed in the middle region of the freezone, and the first working coil and the second working coil are disposed on the upper, lower, left, and right sides of the third working coil,
The control unit may be configured to detect the first current sensing part and the second current sensing part of the upper sensing unit and the first sensing coil from the detection values input from the lower sensing unit that detects the high- The control unit controls the lower relay unit so as to supply a normal switching current to the third working coil, and controls the lower relay unit so that the ratio of the position of the cooking vessel to that of the second working coil And controls the upper relay unit so that a switching current is supplied to only one of the first working coil and the second working coil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150100669A KR101813168B1 (en) | 2015-07-15 | 2015-07-15 | Electric range having free zone |
Applications Claiming Priority (1)
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KR1020150100669A KR101813168B1 (en) | 2015-07-15 | 2015-07-15 | Electric range having free zone |
Publications (2)
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KR20170009147A KR20170009147A (en) | 2017-01-25 |
KR101813168B1 true KR101813168B1 (en) | 2017-12-29 |
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KR1020150100669A KR101813168B1 (en) | 2015-07-15 | 2015-07-15 | Electric range having free zone |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101488731B1 (en) * | 2014-03-05 | 2015-02-03 | 주식회사 리홈쿠첸 | Induction heater having multiple working coil |
KR101515026B1 (en) | 2014-03-05 | 2015-04-24 | 주식회사 리홈쿠첸 | Induction heater having multiple working coil |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101119840B1 (en) | 2010-06-07 | 2012-02-28 | 주식회사 리홈 | Induction heating device |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101488731B1 (en) * | 2014-03-05 | 2015-02-03 | 주식회사 리홈쿠첸 | Induction heater having multiple working coil |
KR101515026B1 (en) | 2014-03-05 | 2015-04-24 | 주식회사 리홈쿠첸 | Induction heater having multiple working coil |
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