KR20220080379A - Electric range - Google Patents

Abstract

An embodiment of the electric range includes a case, a cover plate coupled to the upper end of the case, a cover plate on which an object to be heated is disposed on an upper surface, a heating heating unit provided inside the case, and heating the object to be heated using a heat generating device, the inside of the case The induction heating unit is provided separately from the heating unit in the induction heating method, an upper bracket supporting the induction heating unit, and the heating unit and induction heating unit are disposed between the heating unit and the induction heating unit. It may include a barrier that partitions the part and includes a "U"-shaped bent portion.

Description

electric range {ELECTRIC RANGE}

The present invention relates to an electric range, and more particularly, to a hybrid electric range.

The content described in this section merely provides background information on the present invention and does not constitute the prior art.

BACKGROUND ART Various types of cooking utensils are used to heat food at home or in a restaurant. The above-described cooking appliance includes a gas range using gas and an electric range using electricity.

Electric ranges are largely divided into resistance heating methods and induction heating methods.

In the resistance heating method, a current is applied to a non-metal heating element such as a metal resistance wire or silicon carbide to generate heat, and the generated heat is radiated or conducted to heat the object to be heated (for example, a cooking vessel such as a pot or a frying pan). to be.

The induction heating method is a method of applying high-frequency power to a coil to generate a magnetic field around the coil, and heating a heating target made of a metal component using an eddy current generated in the generated magnetic field.

Looking at the basic heating principle of the induction heating method, when a current is applied to a working coil or a heating coil, heat is generated while the object to be heated is induction heating, and the object to be heated is heated by the generated heat.

Most of the brackets for supporting each part of the electric range are provided in a plate shape, and the plate-shaped structure may be deformed by a load or an external force of the part. Therefore, the development of a structure capable of increasing the rigidity of such a bracket is required.

The electric range may be provided in a hybrid method having both a resistance heating method and an induction heating method heating unit.

The hybrid electric range has a structure in which a heating unit by resistance heating and an induction heating unit by induction heating are arranged separately from each other.

When heat is transferred from the heating unit to the induction heating unit, the induction heating unit and the printed circuit board disposed under the induction heating unit may be overheated due to the high-temperature heat generated from the heating coil.

Conversely, in the case where heat is transferred from the induction heating unit to the exothermic heating unit, the components of the exothermic heating unit may be unnecessarily heated due to the heat generated in the working coil by electromagnetic interaction.

This may become a more serious problem when heating the object to be heated by operating only one of the heating unit or the induction heating unit.

It is an object of the present invention to provide a structure for blocking heat exchange between a heating heating unit and an induction heating unit in a hydride-type electric range.

It is also an object of the present invention to provide an electric range having a structure provided with a barrier partitioning a heating heating unit and an induction heating unit.

Another object of the present invention is to provide an electric range having a structure in which a separation space is formed and a packing unit and a heat insulating member are mounted in order to effectively block heat exchange between the heat generating unit and the induction heating unit.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

An embodiment of the electric range is disposed between the heating heating unit and the induction heating unit to partition the heating heating unit and the induction heating unit, and may include a barrier including a "U"-shaped bent portion.

The barrier may serve to block heat exchange between the induction heating unit and the exothermic heating unit, and between the induction heating unit and the exothermic heating unit.

The barrier may be formed by bending a plate material in the width direction. The barrier may include a base portion constituting the body, a first bent portion, and a second bent portion. The base part, the first bent part, and the second bent part may be connected to each other to have a "U" shape.

The width of the base portion may be disposed in the vertical direction. The first bent portion may be formed to be bent from the base portion, and the width may be disposed in the left and right directions. The second bent portion may be formed to be bent from the first bent portion, and the width may be disposed in the vertical direction. The base part, the first bent part, and the second bent part may all be arranged such that their longitudinal directions cross the inside of the case.

The base part and the second bent part may be provided so that the width directions are parallel to each other, and may be provided to face each other.

The base part and the second bent part may be provided to be spaced apart from each other in the left and right directions. That is, the base portion and the second bent portion may be spaced apart from each other in the left and right directions by the length of the width of the first bent portion.

The base part, the first bent part, and the second bent part may be connected to each other to form a spaced apart space between the heating part and the induction heating part. The separation space may have an upper side open, and the remaining part may be formed surrounded by the base part, the first bent part, and the second bent part.

The barrier is formed to protrude by being bent from an end of the base portion, and may further include a protruding piece in contact with the upper bracket.

A plurality of protruding pieces may be provided, and each of the plurality of protruding pieces may be disposed to be spaced apart from each other at a predetermined distance in the longitudinal direction of the base portion. The number of the protruding pieces may be appropriately selected.

The extension plate of the upper bracket is placed on the protruding piece of the barrier, so that the protruding piece can contact the upper bracket. As the extension plate presses the protruding piece, the barrier can be stably supported by the upper bracket at the disposed position.

The barrier may further include a packing part mounted on the end of the second bent part, the end contacting the lower surface of the cover plate, and formed of a heat insulating material. The packing part may be formed of a flexible material, and a recessed groove may be formed for mounting at an end of the second bent part.

The barrier may further include a heat insulating member mounted in the separation space to suppress heat exchange between the heat generating unit and the induction heating unit. The heat insulating member may be disposed parallel to the longitudinal direction of the barrier in the longitudinal direction.

The barrier may include a first bushing and a second bushing. The first bushing may be mounted on the base portion, and a first through hole penetrating the base portion may be formed. A first coupling groove may be formed in the base portion for mounting the first bushing.

The thickness of the first bushing may be formed to be thicker than the thickness of the base part, and the thickness of the second bushing may be formed to be thicker than the thickness of the second bent part. Accordingly, first and second concave portions may be formed in the first and second bushings, respectively, which may be fitted into the first bent portion and the second bent portion.

A first concave portion is formed on an edge of the first bushing, and the first concave portion is fitted into the first coupling groove of the base portion, so that the first bushing may be mounted on the base portion.

The second bushing may be mounted at a position corresponding to the first bushing in the second bent portion, and a second through hole penetrating the second bent portion may be formed. A second coupling groove may be formed in the second bent portion for mounting the second bushing.

A second concave portion is formed at an edge of the second bushing, and the second concave portion is fitted into the second coupling groove of the second bent portion, so that the second bushing may be mounted on the second bent portion.

The first through-hole and the second through-hole may be provided to face each other at positions corresponding to each other. In addition, when the heat insulating member is disposed in the separation space, the third through hole may be formed in the heat insulating member at positions corresponding to the first through hole and the second through hole.

Due to this structure, in the barrier, a through hole may be formed at a portion where the first bushing and the second bushing are disposed. In the through hole, for example, a cable for electrically connecting a heating coil of the heating unit and a printed circuit board disposed below the induction heating unit may be inserted and disposed.

An embodiment of the electric range includes a case, a cover plate coupled to the upper end of the case, a cover plate on which an object to be heated is disposed on an upper surface, a heating heating unit provided inside the case, and heating the object to be heated using a heat generating device, the inside of the case The induction heating unit is provided separately from the heating unit in the induction heating method, an upper bracket supporting the induction heating unit, and the heating unit and induction heating unit are disposed between the heating unit and the induction heating unit. It may include a barrier that partitions the part and includes a "U"-shaped bent portion.

In the electric range according to the present invention, by arranging a barrier dividing them between the heat generating unit and the induction heating unit, the barrier can block heat exchange between the heat generating unit and the induction heating unit.

In addition, in the barrier according to the present invention, the separation space is formed between the base part and the second bent part, so that heat transfer by conduction between the base part and the second bent part can be effectively suppressed.

In addition, in the electric range according to the present invention, when the packing portion has a recessed groove mounted at the end of the second bent portion and coupled to the barrier, the upper end is in contact with the lower surface of the cover plate, and the upper end of the second bent portion and the lower surface of the cover plate By blocking the gap therebetween, it is possible to effectively block heat exchange by air flow between the heat generating heating unit and the induction heating unit through the gap.

In addition, in the barrier according to the present invention, the heat insulating member is disposed in the spaced apart space, it is possible to more effectively block heat transfer between the base portion and the second bent portion.

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a perspective view illustrating an electric range according to an embodiment.
2 is an exploded perspective view of an electric range according to an embodiment.
3 is a plan view of an electric stove according to an embodiment. In FIG. 3, illustration of the cover plate is omitted.
4 is a front view of an electric range according to an embodiment.
FIG. 5 is a view showing a part of FIG. 2 .
6 is a perspective view of FIG. 2 ;
7 is an exploded perspective view showing some parts of the electric range in FIG. 6 .
8 is a perspective view illustrating an induction heating unit according to an embodiment.
9 is a perspective view illustrating a barrier according to an exemplary embodiment.
FIG. 10 is a cross-sectional view taken in the direction AA in FIG. 9 .
11 is a cross-sectional view taken in the BB direction in FIG. 9 .

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may be the second component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when “A and/or B” is used, it means A, B or A and B, unless otherwise stated, and when “C to D” is used, it means that there is no specific opposite description. Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

Throughout the specification, "up and down direction" refers to the vertical direction of the electric range in a state in which the electric range is installed for daily use. "Left and right direction" means a direction orthogonal to the up-down direction, and the front-back direction means a direction orthogonal to both the up-down direction and the left-right direction. "Both directions" or "lateral directions" have the same meaning as left and right directions, and these terms may be used interchangeably herein.

1 is a perspective view showing an electric range according to an embodiment. 2 is an exploded perspective view of an electric range according to an embodiment.

The electric range according to the embodiment may be provided in a hybrid heating method having both a resistance heating method and an induction heating method.

Accordingly, as shown in FIG. 2 , some of the heating units provided in the electric range are provided as a heating heating unit 30a having a heating coil 30a-1, and the rest of the heating unit is provided with an induction heating method. It may be provided as an induction heating unit 30b to heat.

In the resistance heating method, a heating coil 30a-1 that generates heat by electric resistance is provided, and when power is applied to the heating coil 30a-1, the heating coil 30a-1 is heated to reach a red heat state and generates heat. can do. The heating target can be heated by using such heat.

Since the heating coil 30a-1 emits light when it is heated and becomes red, the heating heating unit 30a having the invention coil is often referred to as a highlight heating device.

In addition, the electric range according to the embodiment may heat an object to be heated in an induction heating method. In this case, the heating target may be, for example, a tableware containing a metal material such as stainless steel or iron.

In the induction heating method, high-frequency power is applied to the working coil 31 to generate a magnetic field around the working coil 31, and an eddy current generated by the generated magnetic field is used to heat an object made of a metal component. heating method.

That is, the working coil 31 applies a high-frequency power to the working coil 31 to the induction heating unit 30b having a structure adjacent to the ferrite core 330 and a magnetic field around the working coil 31 . When the object to be heated is placed in the region of the generated magnetic field, an eddy current is induced in the magnetic field in the object to be heated, and Joule's heat is generated by the eddy current to heat the object to be heated. As the tableware, which is a heating target, is heated, food contained in the heating target can be heated and cooked.

The electric range according to the embodiment may include a case 10 , a cover plate 20 , a heating unit, an upper bracket 40 , and a base bracket 50 .

The case 10 may function to protect the components constituting the electric range electric range. For example, the case 10 may be made of an aluminum material, but is not limited thereto.

Meanwhile, the case 10 may be insulated to prevent heat generated by the heating coil 30a-1 and the working coil 31 from being emitted to the outside.

In the case 10, components constituting an electric range such as a heating unit, a heating coil 30a-1, a working coil 31, and an upper bracket 40 can be accommodated, and the upper part is opened, but such an open part is It can be closed by a cover plate 20 . The case 10 may be used to make a box shape by processing a plate-shaped material as a whole.

The case 10 may include a first casing 110 , a second casing 120 , and a third casing 130 .

The first casing 110 may form a bottom surface of the case 10 . The first casing 110 may support the internal components of the electric range described above.

In the first casing 110 , at least one ventilation hole 111 through which air flows in order to facilitate cooling of the printed circuit board 51 provided therein and the circuit element components mounted on the printed circuit board 51 . ) may be provided.

The second casing 120 is formed to be bent from the first casing 110 , and may form a side surface of the case 10 . The second casing 120 may be bent in the vertical direction at the edge of the first casing 110 to become a side wall of the electric range. The second casing 120 may be provided to surround the sidewall of the base bracket 50 .

The second casing 120 may be disposed on each side of the first casing 110 formed in a substantially quadrangular shape. The second casing 120 may reinforce the rigidity of the entire casing 10 .

That is, the second casing 120 formed to be bent from the first casing 110 can suppress the plate-shaped first casing 110 from being bent or damaged by the weight or external force of the internal components.

The second casing 120 may further include an exhaust hole 121 formed in a slit shape and provided in plurality. The exhaust hole 121 allows the inside and the outside of the case 10 to communicate with each other so that air flows through the exhaust hole 121 , thereby contributing to cooling of the components accommodated in the case 10 . have.

The third casing 130 is formed to be bent from the second casing 120 , and may support the upper bracket 40 . The third casing 130 may be disposed on each side of the first casing 110 .

The first upper plate 41 forming the bottom surface of the upper bracket 40 is seated on the upper surface of the third casing 130, and the first upper plate 41 and the third casing 130 are formed of bolts or the like. They may be coupled to each other by a coupling mechanism.

The cover plate 20 is coupled to the upper end of the case 10 , and an object to be heated may be disposed on the upper surface. The cover plate 20 closes the open upper part of the case 10 to protect the parts accommodated in the case 10 .

An object to be heated is placed on the upper surface of the cover plate 20 , and a magnetic field generated by the induction heating unit 30b may pass through the cover plate 20 to reach the object to be heated. The cover plate 20 may be made of, for example, a material including ceramic, but is not limited thereto.

In addition, the heat generated by the exothermic heating unit 30a may pass through the cover plate 20 to reach the heating target and heat it.

An input interface for receiving an input from a user may be installed on the upper surface of the cover plate 20 . The input interface may be installed in a specific area of the upper surface of the cover plate 20 and display a specific image.

The input interface may receive a touch input from the user, and the electric range may be driven based on the received touch input.

For example, the input interface is a module for inputting a desired heating intensity or heating time by a user, and may be implemented as a physical button or a touch panel.

For example, the input interface may be a TFT LCD (Thin Film Transistor Liquid Crystal Display), but is not limited thereto.

A control board for inputting an operation command to the electric range may be provided under the cover plate 20 . The control board is provided with a plurality of key switches, and a user can control the operation of the electric range by inputting a command to the control board through the key switches.

In the electric range according to the embodiment, the upper surface of the control board may be provided to closely contact the lower surface of the cover plate 20 . In this case, the control board may be disposed at a position corresponding to the input interface.

In this case, the control board and the input interface may be connected to each other by a capacitive touch input method. Accordingly, when the user inputs a control command to the input interface, the control command may be input to the control board.

In addition, a display displaying the driving state of the electric range may be provided in a specific region of the upper surface of the cover plate 20 .

A light display area may be formed on the upper surface of the cover plate 20 . A light source unit 91 may be disposed under the cover plate 20 , and light emitted from the light source unit 91 may be transmitted to a user through the light display area. In this case, the light display area and the light source unit 91 may be disposed at positions corresponding to each other. When a plurality of light source units 91 are provided, the same number of light display areas may be provided on the upper surface of the cover plate 20 .

The electric range according to the embodiment may further include a cover bracket 70 for supporting the cover plate 20 . The cover bracket 70 will first be described with reference to FIGS. 1, 2 and 4 .

The cover bracket 70 may be disposed on the outside of the upper bracket 40 and the case 10 , may be coupled to the case 10 , and may support the cover plate 20 . For example, the cover bracket 70 may be coupled to the case 10 by a coupling mechanism such as a bolt.

The cover bracket 70 may be provided in plurality, and each of the cover brackets 70 may be provided to be disposed at a portion corresponding to each side of the cover plate 20 provided in a quadrangular shape. Accordingly, a total of four cover brackets 70 may be provided to be disposed on each side of the rectangular cover plate 20 .

The cover bracket 70 may include a first cover plate 710 and a second cover plate 720 . The first cover plate 710 may be disposed to face the second casing 120 to be coupled to the second casing 120 . The second cover plate 720 is formed to be bent from the first cover plate 710 , and may support the cover plate 20 .

The cover plate 20 is seated on the upper surface of the second cover plate 720 , and the second cover plate 720 and the cover plate 20 may be coupled to each other by, for example, an adhesive. However, the coupling of the second cover plate 720 and the cover plate 20 is not limited to the adhesive method.

A plurality of heating units may be provided, disposed under the cover plate 20 , and may heat the object to be heated. In the embodiment, the heating unit may be provided with a heat-generating heating unit (30a) and an induction heating unit (30b).

The heat-generating heating unit 30a is provided inside the case 10 and can heat the object to be heated using a heat-generating device. In this case, the heating device may be a heating coil 30a-1 heated by an electrical resistance method.

The heating coil 30a-1 may be wound on the heating heating unit 30a, and the invention coil is electrically connected to the printed circuit board 51 and receives power from a power source connected to the printed circuit board 51 can be heated.

The heating unit may be coupled to the first casing 110 of the case 10 by a coupling mechanism such as a bolt and mounted inside the case 10 . The upper surface of the heating part provided with the heating coil 30a-1 may be disposed to face the cover plate 20 .

The induction heating unit 30b is provided inside the case 10 separately from the heating heating unit 30a, and can heat the object to be heated in an induction heating method.

The induction heating unit 30b may be mounted on the upper bracket 40 , the induction heating unit 30b includes a core frame 320 , and a working coil 31 is formed on the upper surface of the core frame 320 . The ferrite core 330 may be mounted on a lower surface of the core frame 320 and wound spirally. Accordingly, when high-frequency power is applied to the working coil 31 , a magnetic field is formed around the ferrite core 330 , and an eddy current can be formed in the object to be heated with the formed magnetic field.

The induction heating unit 30b will be described in detail with reference to the drawings below.

3 is a plan view of an electric stove according to an embodiment. For clarity, illustration of the cover plate 20 is omitted in FIG. 3 .

4 is a front view of an electric range according to an embodiment. FIG. 5 is a view showing a part of FIG. 2 . 6 is a perspective view of FIG. 2 ;

The upper bracket 40 may be disposed under the induction heating unit 30b to support the induction heating unit 30b. In an embodiment, the upper bracket 40 may be provided in plurality. The upper bracket 40 may be made of, for example, aluminum, but is not limited thereto.

The upper bracket 40 may include a first upper plate 41 and a second upper plate 42 . The first upper plate 41 forms a bottom surface of the upper bracket 40, and the induction heating unit 30b may be mounted thereon.

The first upper plate 41 may be provided to cover the printed circuit board 51 provided thereunder in the vertical direction. When there are a plurality of upper brackets 40, one first upper plate 41 or a plurality of first upper plates 41 are coupled to each other depending on the area of the printed circuit board 51, so that the printed circuit board ( 51) can be covered.

Due to this structure, the first upper plate 41 serves to shield the electromagnetic field and electromagnetic waves generated from the induction heating unit 30b from reaching the printed circuit board 51 and the elements mounted on the printed circuit board 51 . can do.

That is, the upper bracket 40 may serve to improve electromagnetic compatibility (EMC) and electromagnetic interference (EMI) performance with respect to the printed circuit board 51 .

The second upper plate 42 may be provided to be bent from the first upper plate 41 in the vertical direction of the electric range. The second upper plate 42 may be formed to be bent in the vertical direction at the edge of the first upper plate 41 .

The second upper plate 42 may be disposed on each side of the first upper plate 41 formed in a substantially quadrangular shape. When a plurality of upper brackets 40 are provided, the second upper plate 42 may be formed on each side of the first upper plate 41 except for adjacent sides of each upper bracket 40 .

The second upper plate 42 may reinforce the overall rigidity of the upper bracket 40 . That is, the plate-shaped first upper plate 41 is bent or damaged by the weight or external force of the internal component including the induction heating unit 30b, and the second upper part is formed to be bent from the first upper plate 41 . The plate 42 can restrain.

The light source unit 91 may be disposed on the upper bracket 40 . For example, the light source unit 91 is provided on the printed circuit board 51 disposed under the upper bracket 40 , and the upper bracket 40 has an opening disposed at a position corresponding to the light source unit 91 . can be formed. In another embodiment, the light source unit 91 may be disposed on the bracket, and the light source unit 91 may be electrically connected to the lower printed circuit board 51 .

As described above, the light display area may be formed on the cover plate 20 in a portion corresponding to the light source unit 91 .

The light source unit 91 may be provided, for example, in a form in which a plurality of LEDs are arranged in a line. The light source unit 91 is turned on when the induction heating unit 30b operates, and may inform the user of whether the induction heating unit 30b is operating. Alternatively, the light source unit 91 may change the lighting shape, color, etc. of the plurality of LEDs to inform the user of the operating state of the electric range.

The number of light source units 91 may be appropriately selected according to the number of induction heating units 30b. In FIG. 6, one light source unit 91 is provided for one induction heating unit 30b. However, the number of light source units 91 is not limited thereto.

The base bracket 50 is disposed under the upper bracket 40 , the printed circuit board 51 may be mounted, and may include a bottom plate 510 and a side plate 520 . The bottom plate 510 forms a bottom surface of the base bracket 50 , and a printed circuit board 51 may be mounted on the top surface.

The side plate 520 may be provided to be bent from the bottom plate 510 in the vertical direction of the electric range. The side plate 520 may be formed to be bent in the vertical direction at the edge of the bottom plate 510 .

The side plate 520 may be disposed on each side of the bottom plate 510 formed in a substantially quadrangular shape. When a plurality of upper brackets 40 are provided, side plates 520 may be formed on each side of the bottom plate 510 except for adjacent sides of each upper bracket 40 .

The side plate 520 may reinforce the rigidity of the entire base bracket 50 . That is, the side plate 520 formed to be bent from the bottom plate 510 can suppress the plate-shaped bottom plate 510 from being bent or damaged by the weight or external force of internal components such as a circuit board.

The printed circuit board 51 may constitute a control unit, may receive power from an external power source, and may be provided to communicate with an external device by wire or wirelessly.

The printed circuit board 51 may be electrically connected to the control board to receive a command input by a user from the control board. The printed circuit board 51 may be electrically connected to the light source unit 91 and the working coil 31 to control their operations.

Referring to FIG. 2 , the printed circuit board 51 may have a heat sink 52 , an active element including a blower fan 53 , and a passive element mounted thereon, and an electric circuit may be formed therein.

The heat sink 52 may cool the heat inside the case 10 to protect the components accommodated in the case 10 . The heat sink 52 is mounted on the printed circuit board 51 and can cool the heat of the circuit board. In addition, the heat sink 52 may cool the heat generated by the electromagnetic interaction by the induction heating unit 30b operating.

For example, the heat sink 52 may include a plurality of cooling fins and an air guide provided to cover the cooling fins to guide air to flow to the cooling fins.

The blowing fan 53 may be mounted on the printed circuit board 51 . At this time, as shown in FIG. 2 , in order for the air forcedly flowed by the blowing fan 53 to flow to the heat sink 52 , the heat sink 52 is disposed at the air outlet of the blowing fan 53 . A guide wall for guiding the flow of air may be formed.

When the blower fan 53 operates, the air inside the case 10 is forced to flow in the heat sink 52 direction, thereby cooling the inside of the case 10 by the heat sink 52 .

The electric range according to the embodiment may further include a barrier 1000 . The barrier 1000 may be disposed between the exothermic heating unit 30a and the induction heating unit 30b to partition the exothermic heating unit 30a and the induction heating unit 30b.

The barrier 1000 may be disposed inside the case 10 . For example, as shown in FIG. 5 , the first bent part 1200 constituting the lower end of the barrier 1000 is placed on the first casing 110 of the case 10 , and the first bent part 1200 . ) and the first casing 110 are coupled by the screw bolt 900 , the barrier 1000 may be seated inside the case 10 . A structure related to the barrier 1000 will be described in detail below with reference to the drawings.

7 is an exploded perspective view illustrating some parts of the electric range in FIG. 6 . 8 is a perspective view illustrating an induction heating unit 30b according to an embodiment. For clarity, illustration of the working coil 31 is omitted in FIGS. 7 and 8 .

In order to mount the induction heating unit 30b to the upper bracket 40 , coupling portions may be respectively formed in the induction heating unit 30b and the upper bracket 40 at portions corresponding to each other.

The upper bracket 40 is formed to protrude, and may include a first coupling part 410 coupled to the induction heating part 30b. The induction heating unit 30b may include a second coupling unit 310 corresponding to the first coupling unit 410 .

The second coupling part 310 is formed to protrude from the outer periphery of the core frame 320 , provided in plurality, each radially disposed, and coupled to the first coupling part 410 provided in the upper bracket 40 . It can be combined by means of an instrument.

A plurality of second coupling units 310 may be provided, and each of the second coupling units 310 may be radially spaced apart from each other in the circumferential direction at the edge of the induction heating unit 30b. The first coupling part 410 may be provided in the same number as the second coupling part 310 , and may be formed on the upper bracket 40 at a position corresponding to the first coupling part 410 .

The first coupling part 410 and the second coupling part 310 may be coupled to each other by being fastened by a coupling mechanism such as a bolt.

The electric range according to the embodiment may further include a temperature sensor 60 mounted on the central portion of the core frame 320 . A mounting hole 321 in which the temperature sensor 60 is mounted may be formed in the central portion of the core frame 320 .

The temperature sensor 60 may be electrically connected to the printed circuit board 51 provided on the lower side of the upper bracket 40 by a cable. Accordingly, the cable connecting the temperature sensor 60 and the printed circuit board 51 may be installed through the upper bracket 40 . To this end, a cable insertion hole 420 into which the cable of the temperature sensor 60 is inserted may be formed in the upper bracket 40 .

In another embodiment, the electric range may further include a sensor bracket 61 for mounting the temperature sensor 60 to the core frame 320 . The sensor bracket 61 is mounted with the temperature sensor 60 , and may be detachably mounted on the sensor bracket 61 in the mounting hole 321 .

The temperature sensor 60 may measure the temperature of the induction heating unit 30b while the electric range operates. Since the induction heating method is used, the induction heating unit 30b itself may not generate high-temperature heat. However, heat may also be generated in the induction heating unit 30b due to electromagnetic interaction.

Heat generated by the induction heating unit 30b may adversely affect not only the induction heating unit 30b, but also the printed circuit board 51 disposed below the induction heating unit 30b and various elements provided therein. . Therefore, in the electric range, it is necessary to measure the temperature of the induction heating unit 30b, and to take appropriate measures when the temperature exceeds a set value.

The control unit receives information about the temperature of the induction heating unit 30b measured by the temperature sensor 60, and when the temperature of the induction heating unit 30b exceeds a set value, stops the operation of the electric range or , it is possible to take necessary measures such as controlling the blowing fan 53 to increase the cooling capacity.

A first insertion hole 322 into which the working coil 31 mounted on the core frame 320 is inserted may be formed in the core frame 320 . The first insertion hole 322 may be formed in a position spaced apart from the mounting hole 321 in a radial direction in the central portion of the core frame 320 .

The working coil 31 penetrates through the first insertion hole 322 and is introduced into the upper surface of the central portion of the core frame 320, and is spirally wound around the guide rail 324 provided on the upper surface of the core frame 320, An edge portion of the core frame 320 may be drawn out of the core frame 320 .

The working coil 31 may be electrically connected to the printed circuit board 51 disposed under the upper bracket 40 . Accordingly, an insertion hole through which the working coil 31 is inserted may be formed in the upper bracket 40 .

The insertion hole may be provided as a second insertion hole 431 and a third insertion hole 432 in the upper bracket 40 . In the second insertion hole 431 , the working coil 31 introduced into the core frame 320 may be inserted. The working coil 31 drawn out from the core frame 320 may be inserted into the third insertion hole 432 .

In order to easily arrange the working coil 31 , it may be appropriate for the third insertion hole 432 to be provided adjacent to the edge of the core frame 320 .

The working coil 31 is drawn into the central portion of the core frame 320 and is wound on the guide rail 324 while advancing toward the edge of the core frame 320 , and at the edge of the core frame 320 , the core frame 320 . ) can be drawn from

Therefore, in order to facilitate the operation of arranging the working coil 31 in the electric range, the third insertion hole 432 is located in the portion of the upper bracket 40 corresponding to the edge portion of the core frame 320 . It is appropriate to form

The working coil 31 passes through the second insertion hole 431 of the upper bracket 40 from the printed circuit board 51 , and passes through the first insertion hole 322 formed in the core frame 320 again to pass through the core. It may be introduced into the upper surface of the central portion of the frame 320 .

The working coil 31 moves to the edge of the core frame 320 while spirally wound around the guide rail 324 provided on the upper surface of the core frame 320 , and is eventually drawn out of the core frame 320 . can

The working coil 31 drawn out of the core frame 320 may pass through the third insertion hole 432 formed in the upper bracket 40 to be connected to the printed circuit board 51 again.

Hereinafter, the induction heating unit 30b will be described in detail with reference to FIG. 8 .

The induction heating unit 30b may include a working coil 31 , a core frame 320 , and a ferrite core 330 . In FIG. 8, the illustration of the working coil 31 is omitted to clearly explain the structure of the induction heating unit 30b, but the induction heating unit 30b on which the working coil 31 is wound is shown in other drawings. There will be no difficulty in understanding the invention.

The working coil 31 for generating a magnetic field by receiving high-frequency power may be made of, for example, a Ritz wire having excellent durability, but is not limited thereto.

The core frame 320 may have a ferrite core 330 mounted on its lower surface and a working coil 31 wound on its upper surface. A plurality of radially provided channels 323 may be formed on a lower surface of the core frame 320 . A ferrite core 330 may be mounted on the channel 323 . Accordingly, the number of channels 323 may be the same as the number of ferrite cores 330 .

The channel 323 may include a mounting groove in which the ferrite core 330 is mounted and a guide line protruding from the lower surface of the core frame 320 and forming the mounting groove.

As shown in FIG. 8 , a ferrite core 330 may be formed at an edge portion of the core frame 320 to protrude in a radial direction of the core frame 320 . Therefore, only guide lines may be formed in this region without a mounting groove.

The channel 323 may be formed such that a plurality of radially arranged ferrite cores 330 have a separation distance set in the circumferential direction of the core frame 320 .

On the other hand, as shown in FIG. 8 , since the first insertion hole 322 into which the working coil 31 is inserted is formed between the ferrite cores 330 adjacent to each other in the central portion of the core frame 320 , the ferrite core In order not to cause interference between the 330 and the first insertion hole 322 , the channel 323 provided at a position adjacent to the first insertion hole 322 is positioned in the circumferential direction from the center of the core frame 320 . It is appropriate to be formed to be spaced apart sufficiently larger than the diameter of the first insertion hole 322 .

A guide rail 324 on which the working coil 31 is wound may be formed on the upper surface of the ferrite core 330 . The guide rail 324 protrudes from the upper surface of the core frame 320 and is spirally formed to guide the working coil 31 mounted on the core frame 320 to be spirally wound.

A plurality of guide rails 324 may be provided in a radial direction of the core frame 320 . The working coil 31 is seated in the groove formed between the plurality of guide rails 324 , and the working coil 31 may be wound around the guide rail 324 .

In order to stably fix the working coil 31 to the upper surface of the core frame 320 , an adhesive is applied to the guide rail 324 and the groove between them, and the working coil 31 is formed on the upper surface of the core frame 320 . can be attached to

For electrical insulation of the working coil 31, it may be appropriate for the adhesive to be made of an insulating material.

Since a space may be formed on the lower surface of the core frame 320 where the ferrite core 330 is not mounted, as shown in FIG. It can be formed continuously.

However, the guide rail 324 as a whole may be spirally formed from the central portion of the core frame 320 toward the edge, and the working coil 31 wound around the guide rail 324 as a whole is also formed in the central portion of the core frame 320 as a whole. It may be arranged in the shape of a spiral towards the edge.

That is, the working coil 31 passes through the first insertion hole 322 and is introduced into the upper surface of the core frame 320 , is wound around the guide rail 324 and has a spiral shape as a whole, and the core frame 320 . It may be provided so as to be drawn out from the edge of the core frame 320 .

A plurality of ferrite cores 330 may be provided and mounted on the channel 323 to be disposed under the core frame 320 . The ferrite core 330 may be coupled to the mounting groove of the channel 323 with an adhesive. However, the coupling method of the ferrite core 330 is not limited thereto.

When high-frequency power is applied to the working coil 31, a magnetic field is formed around the ferrite core 330, and when an object to be heated is placed inside the region where the magnetic field is distributed, an eddy current is generated in the object to be heated, and Joule heat due to the eddy current is generated. generated to heat the object to be heated.

9 is a perspective view illustrating a barrier 1000 according to an exemplary embodiment. FIG. 10 is a cross-sectional view taken in the direction AA in FIG. 9 . 11 is a cross-sectional view taken in the BB direction in FIG. 9 .

The barrier 1000 is disposed between the heating heating part 30a and the induction heating part 30b to partition the heating heating part 30a and the induction heating part 30b, and a "U"-shaped bent part may include

The barrier 1000 may serve to block heat exchange between the induction heating unit 30b and the exothermic heating unit 30a, and between the induction heating unit 30b and the exothermic heating unit 30a.

When heat is transferred from the exothermic heating unit 30a to the induction heating unit 30b, the induction heating unit 30b and the induction heating unit 30b are disposed below due to the high-temperature heat generated in the heating coil 30a-1. The printed circuit board 51 may be overheated.

Conversely, in the case where heat is transferred from the induction heating unit 30b to the exothermic heating unit 30a, the parts of the exothermic heating unit 30a are unnecessary due to the heat generated in the working coil 31 by electromagnetic interaction. can be heated.

This may become a more serious problem when heating the object to be heated by operating only one of the heating unit 30a or the induction heating unit 30b.

Therefore, in the embodiment, by disposing a barrier 1000 dividing them between the exothermic heating unit 30a and the induction heating unit 30b, the barrier 1000 causes the exothermic heating unit 30a and the induction heating unit 30b. ) can block heat exchange between them.

The barrier 1000 may block air flow between the heat generating unit 30a and the induction heating unit 30b to block convective heat transfer.

The barrier 1000 may be formed by bending a plate material in the width direction. The barrier 1000 may include a base portion 1100 , a first bent portion 1200 , and a second bent portion 1300 forming a body.

Accordingly, the base portion 1100, the first bent portion 1200, and the second bent portion 1300 constituting the body of the barrier 1000 may be integrally formed by bending a thin plate material. It is not limited.

The base part 1100 may be disposed in the vertical direction in width. The first bent part 1200 is formed to be bent from the base part 1100, and the width may be arranged in the left and right directions. The second bent part 1300 is formed to be bent from the first bent part 1200 , and the width may be disposed in the vertical direction.

The base part 1100 , the first bent part 1200 , and the second bent part 1300 may all be arranged so that their longitudinal directions cross the inside of the case 10 . The base portion 1100 , the first bent portion 1200 , and the second bent portion 1300 may be connected to each other to have a “U” shape.

The base part 1100 , the first bent part 1200 , and the second bent part 1300 may be formed of, for example, aluminum, copper, an alloy containing the same, or a plastic material having excellent durability. However, the present invention is not limited thereto.

The base part 1100 and the second bent part 1300 may be provided so that the width directions are parallel to each other, and may be provided to face each other.

The base part 1100 and the second bent part 1300 may be provided to be spaced apart from each other in the left and right directions. That is, the base part 1100 and the second bent part 1300 may be spaced apart from each other in the left and right directions by the length of the width of the first bent part 1200 .

The base part 1100, the first bent part 1200, and the second bent part 1300 may be connected to each other to form a space 1400 between the heating part and the induction heating part 30b. have.

As shown in FIG. 10 , the spaced space 1400 has an upper side open, and the remaining part may be formed surrounded by the base part 1100 , the first bent part 1200 , and the second bent part 1300 . .

In the barrier 1000 according to the embodiment, a separation space 1400 is formed between the base part 1100 and the second bent part 1300 , and between the base part 1100 and the second bent part 1300 . It is possible to effectively suppress the occurrence of heat transfer by conduction.

The barrier 1000 may further include a protrusion piece 1500 formed to protrude by being bent from an end of the base unit 1100 , and contacting the upper bracket 40 .

A plurality of the protruding pieces 1500 may be provided, and each of the plurality of protruding pieces 1500 may be disposed to be spaced apart from each other at a predetermined distance in the longitudinal direction of the base unit 1100 . The number of the protruding pieces 1500 may be appropriately selected.

Referring to FIGS. 3 and 6 , the upper bracket 40 may include an extension plate 43 at a portion adjacent to a position where the barrier 1000 is disposed. The extension plate 43 may be formed such that the upper bracket 40 is connected to the first upper plate 41 at an edge of the first upper plate 41 .

The extension plate 43 may have a predetermined height from the first upper plate 41 and a width direction may be formed in a left-right direction of the electric range, that is, in a direction parallel to a direction in which the protruding piece 1500 protrudes.

Accordingly, the extension plate 43 of the upper bracket 40 is placed on the protruding piece 1500 of the barrier 1000 , and thus the protruding piece 1500 may contact the upper bracket 40 . As the extension plate 43 presses the protruding piece 1500 , the barrier 1000 may be stably supported by the upper bracket 40 at the disposed position.

The barrier 1000 may further include a packing part 1800 mounted on an end of the second bent part 1300 , the end contacting the lower surface of the cover plate 20 , and formed of a heat insulating material. . The packing part 1800 is formed of a flexible material, and a recessed groove 1810 for mounting at an end of the second bent part 1300 may be formed.

The packing unit 1800 may be made of a flexible insulating material and a material having excellent heat resistance, for example, silicon, but is not limited thereto.

When the packing part 1800 has its recessed groove 1810 mounted at the end of the second bent part 1300 and coupled to the barrier 1000, the upper end contacts the lower surface of the cover plate 20, and the second bend By blocking the gap between the upper end of the part 1300 and the lower surface of the cover plate 20, heat exchange by air flow between the heat generating unit 30a and the induction heating unit 30b through the gap can be effectively blocked.

The barrier 1000 may further include a heat insulating member 1900 mounted in the separation space 1400 to suppress heat exchange between the heat generating unit 30a and the induction heating unit 30b. The heat insulating member 1900 may be disposed parallel to the longitudinal direction of the barrier 1000 in the longitudinal direction.

The heat insulating member 1900 may be disposed between the base part 1100 and the second bent part 1300 . The heat insulating member 1900 may be disposed in the separation space 1400 to more effectively block heat transfer between the base part 1100 and the second bent part 1300 .

However, the heat insulating member 1900 is not an essential configuration of the electric range according to the embodiment, the heat insulating member 1900 is not disposed, and the base part 1100 and the second bent part 1300 are formed by the separation space 1400. It may be provided in a structure in which heat transfer between them is blocked.

The barrier 1000 may include a first bushing 1600 and a second bushing 1700 . In FIG. 9, a pair of first bushings 1600 and second bushings 1700 are shown, but the present invention is not limited thereto, and if necessary, the barrier 1000 includes two or more pairs of the first bushing 1600 and the second bushing ( 1700) may be provided.

The first bushing 1600 may be mounted on the base unit 1100 , and a first through hole 1610 penetrating the base unit 1100 may be formed. A first coupling groove 1110 may be formed in the base 1100 for mounting the first bushing 1600 .

The thickness of the first bushing 1600 may be formed to be thicker than the thickness of the base portion 1100 , and the thickness of the second bushing 1700 may be formed to be thicker than the thickness of the second bent portion 1300 . have. Accordingly, in the first bushing 1600 and the second bushing 1700 , the first concave portion 1620 and the second concave portion, which can be fitted in the first bent portion 1200 and the second bent portion 1300 , respectively 1720 may be formed.

That is, a first concave portion 1620 is formed on the edge of the first bushing 1600 , and the first concave portion 1620 is fitted into the first coupling groove 1110 of the base portion 1100 , so that the first The bushing 1600 may be mounted on the base unit 1100 .

The second bushing 1700 is mounted at a position corresponding to the first bushing 1600 in the second bent part 1300 , and a second through hole 1710 passing through the second bent part 1300 is provided. can be formed. A second coupling groove 1310 may be formed in the second bent part 1300 for mounting the second bushing 1700 .

A second concave portion 1720 is formed on the edge of the second bushing 1700 , and the second concave portion 1720 is fitted into the second coupling groove 1310 of the second bent portion 1300 , so that the second The bushing 1700 may be mounted on the second bent part 1300 .

The first through hole 1610 and the second through hole 1710 may be provided to face each other at positions corresponding to each other. In addition, when the heat insulating member 1900 is disposed in the separation space 1400 , the third through hole 1910 is located at a position corresponding to the first through hole 1610 and the second through hole 1710 in the heat insulating member 1900 . ) can be formed.

Due to this structure, in the barrier 1000 , a through hole may be formed at a portion where the first bushing 1600 and the second bushing 1700 are disposed. In the through hole, for example, a cable for electrically connecting the heating coil 30a-1 of the heating heating part 30a and the printed circuit board 51 disposed below the induction heating part 30b is inserted and disposed. can

Alternatively, cables for other purposes may be electrically connected to each other through the through-holes to electrically connect components disposed on the side of the heating unit 30a and the side of the induction heating unit 30b.

At this time, when the heat insulating member 1900 is disposed in the spaced space 1400, the heat insulating member 1900 is made of a flexible material, and the first bushing 1600 and the second bushing 1700 are disposed. It is appropriate to allow some deformation to occur in

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various methods can be obtained by those skilled in the art within the scope of the technical spirit of the present invention. It is obvious that variations can be made. In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

10: case 110: first casing
111: ventilation hole 120: second casing
121: exhaust hole 130: third casing
20: cover plate 30a: heating heating part
30a-1: heating coil 30b: induction heating unit
31: working coil 310: second coupling part
320: core frame 321: mounting hole
322: first insertion hole 323: channel
324: guide rail 330: ferrite core
40: upper bracket 41: first upper plate
42: second upper plate 43: extension plate
410: first coupling portion 420: cable insertion hole
431: second insertion hole 432: third insertion hole
50: base bracket 510: bottom plate
520: side plate 51: printed circuit board
52: heat sink 53: blowing fan
60: temperature sensor 61: sensor bracket
70: cover bracket 710: first cover plate
720: second cover plate 91: light source unit
900: screw bolt 1000: barrier
1100: base 1110: first coupling groove
1200: first bent part 1300: second bent part
1310: second coupling groove 1400: separation space
1500: protruding piece 1600: first bushing
1610: first through hole 1620: first concave portion
1700: second bushing 1710: second through hole
1720: second concave portion 1800: packing portion
1810: recessed groove 1900: insulation member
1910: 3rd through hole

Claims (16)

case;
a cover plate coupled to the upper end of the case, the heating target being disposed on the upper surface;
a heating heating unit provided in the case and heating the object to be heated using a heating device;
an induction heating unit provided separately from the heating heating unit in the case and heating the object to be heated in an induction heating method;
an upper bracket supporting the induction heating unit; and
The barrier is disposed between the heating heating unit and the induction heating unit to partition the heating heating unit and the induction heating unit, and including a "U"-shaped bent portion.
containing,
electric stove. According to claim 1,
The barrier is
It is formed by bending a plate in the width direction,
a base portion having a width disposed in the vertical direction;
a first bent portion formed to be bent from the base portion and disposed in the left and right directions; and
The second bent part is formed to be bent from the first bent part, and the width is arranged in the vertical direction.
containing,
electric stove. 3. The method of claim 2,
The base portion and the second bent portion,
provided so that the width direction is parallel to each other, provided to face each other,
electric stove. 3. The method of claim 2,
The base part and the second bent part are provided to be spaced apart from each other in the left and right directions,
electric stove. 3. The method of claim 2,
The base part, the first bent part, and the second bent part are connected to each other to form a spaced apart space between the heating part and the induction heating part,
electric stove. 3. The method of claim 2,
The barrier is
It is formed to protrude by being bent from the end of the base part, further comprising a protruding piece in contact with the upper bracket,
electric stove. 7. The method of claim 6,
The protrusion piece is provided in plurality, and each of the plurality of protrusion pieces is arranged to be spaced apart from each other at a predetermined distance in the longitudinal direction of the base part,
electric stove. 4. The method of claim 3,
The barrier is
a first bushing mounted on the base and having a first through hole penetrating through the base; and
A second bushing that is mounted at a position corresponding to the first bushing in the second bent part and has a second through hole penetrating the second bent part
further comprising,
electric stove. 9. The method of claim 8,
The thickness of the first bushing is formed to be thicker than the thickness of the base part, and the thickness of the second bushing is formed to be thicker than the thickness of the second bent part,
electric stove. 3. The method of claim 2,
The barrier is
A packing part mounted on the end of the second bent part, the end contacting the lower surface of the cover plate, and formed of a heat insulating material
further comprising,
electric stove. 11. The method of claim 10,
The packing part,
It is formed of a flexible material, and a recessed groove for mounting at the end of the second bent part is formed,
electric stove. 6. The method of claim 5,
The barrier is
Further comprising a heat insulating member mounted in the separation space to suppress heat exchange between the heat generating unit and the induction heating unit,
electric stove. case;
a cover plate coupled to the upper end of the case, the heating target being disposed on the upper surface;
a heating heating unit provided in the case and heating the object to be heated using a heating device;
an induction heating unit provided separately from the heating heating unit in the case and heating the object to be heated in an induction heating method;
an upper bracket supporting the induction heating unit; and
A barrier that is disposed between the heating heating unit and the induction heating unit to partition the heating heating unit and the induction heating unit
including,
The barrier is
a base portion having a width disposed in the vertical direction;
a first bent portion formed to be bent from the base portion and disposed in the left and right directions; and
The second bent part is formed to be bent from the first bent part, the width is arranged in the vertical direction, the base part and the width direction are parallel to each other, and the second bent part is provided to face the base part
containing,
electric stove. 14. The method of claim 13,
The base part, the first bent part and the second bent part are connected to each other and are provided to have a "U" shape,
electric stove. 14. The method of claim 13,
The barrier is
a packing part mounted on an end of the second bent part, the end contacting the lower surface of the cover plate, and formed of a heat insulating material; and
A heat insulating member disposed between the base part and the second bent part to suppress heat exchange between the heat generating part and the induction heating part
further comprising,
electric stove. 16. The method of claim 15,
a protruding piece formed to protrude by being bent from an end of the base portion and contacting the upper bracket;
a first bushing mounted on the base and having a first through hole penetrating through the base; and
A second bushing that is mounted at a position corresponding to the first bushing in the second bent part and has a second through hole penetrating the second bent part
further comprising,
electric stove.

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