WO2015182914A1 - 유도 가열 조리기기 - Google Patents
유도 가열 조리기기 Download PDFInfo
- Publication number
- WO2015182914A1 WO2015182914A1 PCT/KR2015/005038 KR2015005038W WO2015182914A1 WO 2015182914 A1 WO2015182914 A1 WO 2015182914A1 KR 2015005038 W KR2015005038 W KR 2015005038W WO 2015182914 A1 WO2015182914 A1 WO 2015182914A1
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- WIPO (PCT)
- Prior art keywords
- light
- induction heating
- light source
- lens
- convex lens
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication
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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
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
- H05B2206/022—Special supports for the induction coils
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
Definitions
- the present invention relates to an induction heating cooker which displays a virtual flame image on a container so that the heating state of the cooking container can be easily recognized.
- An induction heating cooker is a cooking device which heat-cooks food using the principle of induction heating.
- the induction heating cooker includes a worktop on which a cooking vessel is placed, and an induction coil for generating a magnetic field when a current is applied.
- Such an induction heating cooker is capable of rapid heating as compared to a gas range or kerosene stove, which burns fossil fuels such as gas or oil and heats the cooking vessel through the heat of combustion, and generates no harmful gas, and there is no risk of fire. There is no advantage.
- the induction heating cooking apparatus does not generate flame when the cooking vessel is heated, it may be difficult to intuitively recognize the heating state of the cooking vessel from the outside.
- a digital display in the form of a level meter may be provided in the induction heating cooker to indicate a heating state of the cooking vessel.
- a digital display is difficult to recognize if the user is away from the induction heating cooking apparatus more than a certain distance or if not observed in detail, and even if it is perceived, it is difficult to provide an immediate sense to the user.
- One aspect of the invention discloses an induction heating cooker for displaying a virtual flame image on a cooking vessel.
- One aspect of the present invention discloses an induction heating cooker in which the quality of the flame image and the reliability of the product are improved by minimizing the distance tolerance between the light source and the main slit.
- One aspect of the present invention discloses an induction heating cooker having a light source unit having an optical member of various embodiments.
- the induction heating cooking apparatus includes a countertop having an auxiliary slit through which light passes; and an induction coil generating a magnetic field to inductively heat the cooking vessel placed on the countertop; and arranged outside the induction coil.
- At least one light source, and an optical member configured to switch and condense a traveling direction of light emitted from the light source; And a main slit for passing the light emitted from the optical member to form a flame image in the cooking vessel. It includes.
- the optical member may include a convex lens.
- the incidence surface of the convex lens may be formed flat and inclined to the countertop.
- the exit surface of the convex lens may be formed as a curved surface that is convex outward, and may be provided to face the main slit.
- the incident surface of the convex lens may have a length sufficient to cover all of the light emitted from at least one chip of the light source module.
- the incident surface of the convex lens may have a corrosion pattern for mixing light emitted from a plurality of chips of the light source.
- the convex lens may have an empty space of a triangular shape when viewed from the side.
- the optical member may include a total reflection lens.
- the total reflection lens may include a total reflection surface that reflects all the light without projecting the approached light.
- Light traveling to the total reflection surface of the total reflection lens may be reflected to the exit surface side of the total reflection lens.
- the incident surface of the total reflection lens may be formed as a convex surface inward of the total reflection lens so as to focus light.
- the exit surface of the total reflection lens may be formed as a spherical surface convex to the outside of the total reflection lens to focus light, and may be provided to face the main slit.
- the optical member may include a split lens forming a plurality of light lines in one light source.
- the split lens may have one common entrance surface and a plurality of emission surfaces.
- the split lens may be symmetrical with respect to the center plane.
- the optical member may include an overlapping lens that forms one light stem from a plurality of light sources.
- the overlapping lens may have a plurality of incidence surfaces and one common exit surface.
- the split lens may be symmetrical with respect to the center plane.
- the optical member may include a concave mirror.
- the concave mirror may include a concave reflective surface to condense light.
- the optical member may include an arc-shaped light guide bar.
- a plurality of incident surfaces may be formed at both ends of the light guide bar.
- the light guide bar may include a reflection surface provided to be inclined with respect to the countertop.
- the light guide bar may include a plurality of reflective patterns formed on the reflective surface to be spaced apart from each other along the longitudinal direction of the light guide bar to reflect the light incident through the incident surface toward the main slit side.
- Flame images may be formed in the cooking container by the number of the reflective patterns.
- an induction heating cooker includes: a countertop having an auxiliary slit; an induction coil for generating a magnetic field; a plurality of light sources disposed outside the induction coil; and the plurality of light sources are mounted.
- a light source module having a printed circuit board, and a convex lens for converting and condensing a traveling direction of light emitted from the light source module; And a light source cover having a main slit for passing the light emitted from the convex lens to form a flame image in the cooking vessel. It includes.
- the incidence surface of the convex lens may be formed flat and inclined to the countertop.
- the exit surface of the convex lens may be formed as a curved surface that is convex outward, and may be provided to face the main slit.
- the incident surface of the convex lens may have a length sufficient to cover all of the light emitted from at least one chip of the light source module.
- An incident surface of the convex lens may have a corrosion pattern for intermixing emitted from a plurality of chips of the light source.
- the corrosion pattern may be molded together with the convex lens when the convex lens is molded.
- the convex lens may have an empty space of a triangular shape when viewed from the side.
- the convex lens may have an accommodation space for receiving the light source.
- the convex lens may include a hemisphere having a hemispherical appearance and a protrusion protruding outward from the hemisphere.
- the convex lens may be provided as many as the number of the light sources.
- Light emitted upward from the light source module may be converted to be inclined upwardly toward the inside via the convex lens.
- the induction heating cooking apparatus may further include a base unit supporting the convex lens.
- the base portion may include a bottom portion formed horizontally at a lower portion, a vertical portion extending from the bottom portion to a predetermined height, and a flange portion extending horizontally from the vertical portion.
- the convex lens and the base portion may be integrally formed.
- an induction heating cooking device includes a cooking panel including at least a portion of a cooking panel formed of a transparent material, and a light blocking layer provided on a bottom surface of the cooking panel and having an auxiliary slit.
- An induction coil for generating a light source, at least one light source disposed at an outer side of the induction coil, an optical member for converting and converging a traveling direction of light emitted from the light source module, and forming a flame image in the cooking container
- a light source cover having a main slit through which light emitted from the optical member passes; And a shielding film provided on an upper surface of the cooking panel to minimize the light emitted from the light source through the auxiliary slit to be directly exposed to the user's field of view. It includes.
- an induction heating cooker includes a worktop on which a cooking vessel is placed; an induction coil for generating a magnetic field to inductively heat the cooking vessel placed on the countertop; and the emitting surface is vertically upward.
- a light source provided to face the light source, and an optical member configured to incline the light emitted from the light source inclined with respect to the countertop; And a slit for passing a portion of the light emitted from the optical member to form a flame image in the cooking vessel.
- the induction heating cooker forms a flame image on the bottom surface of the cooking vessel, the user can intuitively easily recognize the heating state of the cooking vessel.
- the virtual flame image formed in the cooking vessel may have a height, width, three-dimensionality, and shade similar to those of the actual flame.
- the distance tolerance between the light source and the main slit can be minimized, thereby improving the quality of the flame image and the reliability of the product.
- the optical member for changing the direction of light and condensing light can be implemented in various forms, it can be optimized to meet the specifications of the actual product.
- a W LED or an RGB LED may be used as the light source, and a plurality of light sources may be individually controlled to produce various fireworks.
- the aesthetics of the product may be improved without feeling that the flame is artificial.
- the cover portion of the light source cover extends in a direction closer to the induction coil than the auxiliary slit, the inside of the induction heating cooker can be prevented through the auxiliary slit.
- FIG. 1 is a view showing the appearance of an oven range having an induction heating cooker according to a first embodiment of the present invention.
- Figure 2 is an exploded view showing the main configuration of the induction heating cooker of Figure 1;
- FIG. 3 is a plan view excluding the countertop of the induction heating cooker of FIG.
- FIG. 4 is an exploded view illustrating a countertop of the induction heating cooker of FIG. 1;
- FIG. 5 is an exploded view illustrating a light source unit of the induction heating cooker of FIG. 1.
- FIG. 6 is a view for explaining the coupling structure of the main board and the substrate support of the induction heating cooker of FIG.
- FIG. 7 is a view for explaining a coupling structure of the substrate support and the printed circuit board of the induction heating cooker of FIG.
- FIG. 8 is a view for explaining a coupling relationship between a light source module, an optical member, and a light source cover of the induction heating cooker of FIG. 1.
- FIG. 9 is a plan view showing a light source cover of the induction heating cooker of FIG.
- FIG. 10 is a perspective view illustrating a convex lens of the induction heating cooker of FIG. 1.
- FIG. 11 is a cross-sectional view showing a convex lens of the induction heating cooker of FIG.
- FIG. 12 is a view for explaining the length of the incident surface of the convex lens when the LED of the induction heating cooker of FIG. 1 has three chips of RGB.
- FIG. 13 is a view illustrating a corrosion pattern formed on an incident surface of a lens to mix red light, green light, and blue light when an LED of the induction heating cooker of FIG. 1 has three chips of RGB. An enlarged drawing.
- FIG. 14 is a view for explaining the length of the incident surface of the convex lens when the LED of the induction heating cooker of FIG. 1 has one chip of WHITE.
- FIG. 15 is another embodiment of a convex lens of the induction heating cooker of FIG. 1.
- 16 is a schematic view for explaining the structure in which the flame of the induction heating cooker of FIG.
- 17 is a cross-sectional view illustrating a structure in which a flame of the induction heating cooker of FIG. 1 is formed.
- FIG. 18 is a view for explaining a screen of the induction heating cooking apparatus of FIG.
- FIG. 19 illustrates the action of a transverse hairline on the surface of a cooking vessel placed in the induction heated cooker of FIG.
- FIG. 20 is a view showing a state in which a virtual flame image is formed on the surface of the cooking vessel placed in the induction heating cooker of FIG.
- 21 is a view schematically showing a main configuration of an induction heating cooker according to a second embodiment of the present invention.
- FIG. 22 is a view schematically showing a main configuration of an induction heating cooker according to a third embodiment of the present invention.
- FIG. 23 is a view schematically showing the main configuration of the induction heating cooking appliance according to a fourth embodiment of the present invention.
- 24 is a view schematically showing the main configuration of an induction heating cooker according to the fifth embodiment of the present invention.
- FIG. 25 is a perspective view illustrating a structure of a total reflection lens of the induction heating cooker of FIG. 24.
- 26 is a view for explaining the operation of the total reflection lens of the induction heating cooker of FIG.
- FIG. 27 is a view schematically showing a main configuration of an induction heating cooker according to a sixth embodiment of the present invention.
- FIG. 28 is a view illustrating a structure of a split lens of the induction heating cooker of FIG. 27.
- 29 is a view for explaining the action of the split lens of the induction heating cooker of FIG.
- FIG. 30 is a view schematically showing a main configuration of an induction heating cooker according to a seventh embodiment of the present invention.
- FIG. 31 is a view illustrating a structure of an overlap lens of the induction heating cooker of FIG. 30.
- FIG. 32 is a view for explaining the operation of the overlap lens of the induction heating cooker of FIG.
- FIG 33 is a view schematically showing a main configuration of an induction heating cooker according to an eighth embodiment of the present invention.
- FIG. 34 is a perspective view showing the structure of a concave mirror of the induction heating cooker of FIG.
- 35 is a view for explaining the operation of the concave mirror of the induction heating cooker of FIG.
- 36 is a view schematically showing a main configuration of an induction heating cooker according to a ninth embodiment of the present invention.
- FIG. 37 is a view illustrating a structure of a light guide bar of the induction heating cooker of FIG. 36.
- FIG. 37 is a view illustrating a reflection pattern of a light guide bar of the induction heating cooker of FIG. 36.
- 39 is a view for explaining the operation of the light guide bar of the induction heating cooker of FIG.
- FIG. 1 is a view showing the appearance of an oven range having an induction heating cooker according to a first embodiment of the present invention.
- FIG. 2 is an exploded view illustrating a main configuration of the induction heating cooker of FIG. 1.
- 3 is a plan view of the induction heating cooking apparatus of FIG.
- the oven range 1 may be integrally formed including an oven 10 provided at a lower portion thereof and an induction heating cooker 100 provided at an upper portion thereof.
- Induction heating cooking apparatus 100 may be provided integrally with the oven 10, or may be provided separately from the oven (10).
- the oven 10 may generate high temperature heat by using gas or electricity, and may cook food in the cavity by convection of air.
- Doors 11 and 12 of the oven 10 are provided on the front surface of the oven rage 1, and the doors 11 and 12 of the oven 10 may be rotated about the hinge axis to be opened and closed.
- the display device 13 which displays the operating state of the oven 10 or the induction heating cooker 100 and the oven 10 or the induction heating cooker 100 are disposed on the upper ends of the doors 11 and 12 of the oven 10.
- An operation unit 14 for receiving an output level of the subwoofer may be provided.
- the induction heating cooker 100 includes a main body 110, a countertop 120 on which a cooking container is placed, an induction coil 130 for generating a magnetic field to inductively heat the cooking container, and a light source unit 140 for emitting light. ), A power supply device that supplies or cuts power to the induction coil 130 and the light source unit 140, a light source controller 115 that controls the lighting, extinction, brightness, and the like of the light source unit 140, and various electrical appliances. And a cooling device 116 for cooling the light source unit 140, and an auxiliary display device 119 for displaying operation information of the induction heating cooker 100.
- the main body 110 may be provided in a box shape having an approximately upper surface open, and the countertop 120 may be coupled to the opened upper surface of the main body 110.
- the main board 111 may be provided inside the main body 110, and the induction coil 130 may be supported by the main board 111.
- the machine room 114 may be formed below the main board 111.
- the countertop 120 may have a flat shape to horizontally support the cooking container.
- the induction coil 130 is horizontally disposed under the countertop 120.
- the induction coil 130 may be mounted on the induction coil support 131 (FIG. 17) mounted to the main board 111.
- the induction coil 130 is provided with a total of one large, two medium and one small, but the number of the induction coil 130 is not limited.
- the induction coil 130 is provided in a substantially circular shape.
- the present invention is not limited thereto and may be provided in a quadrangular shape or other various shapes.
- the induction coil 130 When a current is applied to the induction coil 130, the induction coil 130 may form a magnetic field in the vertical direction.
- the secondary current is induced to the cooking vessel placed on the countertop 120 by this magnetic field, and Joule heat may be generated by the resistance component of the cooking vessel itself.
- the cooking vessel can be heated and thus the food contained in the cooking vessel can be cooked.
- Cooking vessels should have iron or be magnetic.
- the light source unit 140 may be provided as many as the number of induction coils 130.
- the light source unit 140 may be mounted on the substrate support 112.
- the substrate support 112 is described next.
- the light source unit 140 may be provided along the circumferential direction on the radially outer side of the induction coil 130.
- the light source unit 140 is provided in the range of about 120 degrees in front of the induction heating cooker, but is not limited thereto. In one example, the light source unit 140 may be provided in a range of 180 degrees or 360 degrees. However, in general, since the induction heating cooker is disposed on the wall of the kitchen and the user mainly views only the front surface of the induction heating cooker, it is unnecessary to arrange the light source unit 140 on the rear and side surfaces of the induction heating cooker. Even if provided only in the range of 120 degrees, it does not interfere with achieving the effect of the present invention.
- the light source unit 140 may form a flame image on the bottom surface of the cooking vessel so that an electric current is applied to the induction coil 130 to intuitively recognize the heating state of the cooking vessel when the cooking vessel is heated (FIG. 20). ).
- the cooking vessel may serve as a screen on which light is projected.
- the light source unit 140 includes a light source module 150 (FIG. 5) having a light source 151 (FIG. 5) and a printed circuit board 156 (FIG. 5), and light emitted from the light source module 150 in a direction toward the bottom of the cooking vessel.
- a light source cover having an optical member 160 (FIG. 5) for guiding and condensing the light, and a main slit 183 (FIG. 5) for passing a light emitted from the optical member 150 to form a flame image at the bottom of the cooking vessel. 180, FIG. 5).
- the detailed structure of the light source unit 140 is mentioned later.
- the light source controller 115 may control the lighting, turning off, brightness, and the like of the light source.
- the light source controller 115 may adjust the size and brightness of the virtual flame by adjusting the amount of current applied to the light source.
- the light source controller 115 may control the entire plurality of light sources at once or may individually control them. Therefore, various renderings of the flame image may be possible. For example, when the heating starts or ends, the flames may be sequentially turned on or off in one direction, or some or all of the flames may blink at short intervals to draw attention of the user.
- the cooling device 116 may include a blowing fan 117 for forcibly flowing air, a heat sink 118, and a duct (not shown) for guiding the flow of air.
- the cooling device 116 may dissipate heat generated in the induction coil 130 and the light source unit 140 by circulating air in the machine room 114.
- the secondary display device 119 may express whether the induction heating cooker is operated by using a level meter or the heating temperature or operating time of the induction cooker by using a seven digit segment. Can be.
- FIG. 4 is an exploded view illustrating a countertop of the induction heating cooker of FIG. 1. Referring to FIG. 4, a cooking counter of an induction heating cooker according to a first embodiment of the present invention will be described.
- the countertop 120 supports the cooking vessel.
- the countertop 120 includes a cooking panel 121 made of a transparent material and a light blocking layer 123 provided on a bottom surface of the cooking panel 121 and having an auxiliary slit 124.
- the cooking panel 121 has a flat plate shape, and has sufficient strength to support the cooking container and heat resistance to withstand heat. To this end, the cooking panel 121 may be formed of tempered heat-resistant glass or tempered ceramic material.
- the cooking panel 121 is formed of a transparent material so that light emitted from the light source unit 140 may pass through and be projected onto the cooking container. However, the cooking panel 121 does not need to be transparent to the entire cooking panel 121 because only a portion of the light stem that forms the flame image in the cooking apparatus is sufficient to pass through the light emitted from the light source unit 140. Only some of them may be formed transparently.
- the light blocking layer 123 prevents various accessories provided on the lower side of the cooking panel 121 from being exposed to the outside. Therefore, the light blocking layer 123 may have a black color with low light transmittance.
- the auxiliary blocking slit 124 is formed in the light blocking layer 123 so as not to cover the light streaks toward the cooking vessel.
- the auxiliary slit 124 is emitted from the light source unit 140 so that light passing through the main slit 183 (FIG. 17) of the light source cover 180 (FIG. 17) is projected onto the cooking vessel without being blocked by the light blocking layer 123. do.
- the auxiliary slit 124 may be formed in the upper radial direction of the main slit 183.
- the auxiliary slit 124 preferably does not affect the size of the flame image. Because the auxiliary slit 124 is farther from the light source 151 (FIG. 17) than the main slit 183, the distance tolerance with the light source 151 may be greater.
- the thickness (D2, FIG. 17) of the auxiliary slit 124 is larger than the thickness (D1, FIG. 17) of the main slit 183 so that the light passing through the main slit 183 can be passed as it is. It is preferable.
- the auxiliary slit 124 is arcuate and may be formed in a range of about 120 degrees along the circumferential direction. However, the present invention is not limited thereto and may be formed in various angle ranges such as 180 degrees or 360 degrees.
- the auxiliary slit 124 may be continuously formed along the circumferential direction. However, the present invention is not limited thereto, and may be formed discontinuously to correspond to the number of the plurality of light stems.
- the light blocking layer 123 may include an infant hole 125 through which light emitted from the auxiliary display device 119 (FIG. 2) may pass.
- the light blocking layer 123 may be provided in a separate sheet form and attached to the bottom surface of the cooking panel 121 by an adhesive member.
- the light blocking layer 123 may be printed on the bottom surface of the cooking panel 121.
- initial printing may be used.
- First printing is a printing method in which ink is applied to a glass and then ink is applied to the glass and heated to a high temperature, such as baking ceramics.
- the countertop 120 may include a shielding film 127 provided on the upper surface of the cooking panel 121 to minimize the direct exposure of the light of the light source unit 140 to the user to conceal the light source 151.
- the blocking film 127 may have a black color with low light transmittance.
- the shielding film 127 has an arc shape and may be formed in a range of about 120 degrees along the circumferential direction. However, the present invention is not limited thereto and may be formed in various angle ranges such as 180 degrees or 360 degrees.
- the shielding film 127 may be provided to extend radially outward from the vertical upper portion of the auxiliary slit 124. As such, when the shielding film 127 is disposed radially outward from the vertical upper portion of the auxiliary slit 124, the shielding film 127 passes through the auxiliary slit 124 without obstructing a light stream that is inclined upwardly from the light source unit 140 to the cooking vessel. This is because it is possible to minimize the direct exposure of one light to the user's field of view (see FIG. 18).
- the user Since the light source 151 is directly exposed to the user by the shielding film 127, the user may not recognize the existence of the light source 151, and thus may not give a feeling that the flame image is artificially formed. The aesthetics of the product can be improved.
- the shielding film 127 may be provided in a separate sheet form and attached to the upper surface of the cooking panel 121 by an adhesive member.
- the screen 127 may be printed on the upper surface of the cooking panel 121.
- First printing may be used as the printing method.
- the countertop 120 may include a container guide line 122 guiding a proper position of the cooking container.
- the vessel guide 122 may have a size approximately corresponding to the size of the induction coil 130.
- the vessel guide 122 may be formed by printing or attachment.
- FIG. 5 is an exploded view illustrating a light source unit of the induction heating cooker of FIG. 1.
- 6 is a view for explaining a coupling structure of the main board and the substrate support of the induction heating cooker of FIG. 7 is a view for explaining a coupling structure of the substrate support and the printed circuit board of the induction heating cooker of FIG.
- FIG. 8 is a view for explaining a coupling structure of a light source module, an optical member, and a light source cover of the induction heating cooker of FIG. 1.
- FIG. 9 is a plan view illustrating a light source cover of the induction heating cooker of FIG. 1.
- the light source unit 140 may include a light source module 150 that emits a plurality of light lines, an optical member 160 that deflects or reflects the light emitted from the light source module 150, thereby changing and condensing the light traveling direction, and
- the light source cover 180 may include a light source cover 180 having a main slit 183 for changing the direction of travel by the optical member 160 and passing the collected light to form a flame image on the surface of the cooking container.
- the light source module 150 includes a light source 151 that emits light and a printed circuit board 156 on which the light source 151 is mounted and supplies power to the light source 151.
- an LED (, Light Emitting Diode) is used as the light source 151.
- LED 151 has the advantages of small size, excellent luminous efficiency and long life.
- the light source 151 does not necessarily include only the LED 151, but a cold cathode fluorescent lamp, an external electrode fluorescent lamp, a carbon nanotube lamp, and the like.
- Various light emitting means may be included.
- the light source module 150 may have as many LEDs 151 as the number of flame images to be formed in the cooking vessel. That is, one flame image may be formed for each LED 151.
- the LEDs 151 may be arranged to be spaced apart at predetermined intervals along the circumferential direction of the induction coil 130.
- the LEDs 151 may be arranged in an angle range of approximately 120 degrees in front of the induction heating cooker 100. However, the present invention is not limited thereto and may be arranged in a range of 180 degrees or 360 degrees.
- the LED 151 may be a white LED having one chip (FIG. 14) or an RGB LED having three chips (FIGS. 11 and 12). When using red, green, and blue RGB LEDs, each color can be combined to achieve a color more similar to a real flame.
- the LED 151 is a Surface Mount Device (SMD) type LED mounted on the printed circuit board 156, but the chip on which the LED chip itself is mounted and molded on the printed circuit board 156 is chip-on. Borad) type LEDs may be used.
- SMD Surface Mount Device
- Borad Borad
- the LED 151 may be mounted on the top surface of the printed circuit board 156 so that the light emitting surface thereof faces upward. That is, the LED 151 may emit light upward at a predetermined direction angle.
- the directing angle of the LED 151 may be approximately 120 degrees.
- the printed circuit board 156 on which the LEDs 151 are mounted is provided horizontally with respect to the countertop 120.
- the printed circuit board 156 may be mounted on a separate substrate support 112 instead of the main board 111 to maintain the flatness as a whole.
- the substrate support 112 is molded separately from the main board 111 and coupled to the main board 111. Since the main board 111 has a large size, it is difficult to maintain the flatness evenly as a whole. However, since the substrate support 112 is provided as small as the size of the printed circuit board 156, the flatness of the main board 111 may be maintained evenly.
- the substrate support 112 may have a flat portion 112a on which the printed circuit board 156 is mounted and supported, and a coupling portion 112b coupled to the main board 111.
- the flat portion 112a may be formed flat without bending so that the plurality of LEDs 151 mounted on the printed circuit board 156 all emit light in the same direction.
- the coupling part 112b is formed in plural so as to protrude to the outside of the flat part 112a and may be firmly coupled to the main board 111 by a fastening member S1 such as a screw.
- the printed circuit board 156 on which the LED 151 is mounted may be mounted on the upper surface of the flat portion 112a of the substrate support 112.
- the printed circuit board 156 may be firmly coupled to the substrate support 112 by the fastening member S2.
- the plurality of LEDs 151 mounted on the printed circuit board 156 may have the same direction of light emitted, and thus, the size and brightness of the plurality of flame images formed in the cooking container may be uniform. It can have, and the reliability of the product can be improved.
- the optical member 160 deflects or reflects the light emitted from the LED 151 to change the direction of travel and to condense the light. By condensing light by the optical member 160, the straightness of the light may be improved and the brightness of the flame image may be increased.
- the optical member 160 of the induction heating cooker according to the first embodiment of the present invention includes a convex lens 170 for refracting and condensing light and a base portion 161 for supporting the convex lens 170.
- the convex lens 170 and the base 161 of the optical member 160 may be integrally formed.
- the convex lens 170 and the base 161 of the optical member 160 may be injection molded integrally with a resin material such as silicon. Or it may be molded from a glass material.
- the convex lenses 170 are provided as many as the number of LEDs 151 and are spaced apart from each other along the circumferential direction so as to correspond to the LEDs 151.
- the convex lens 170 converts the traveling direction of the light emitted vertically upward from the LED 151 to be inclined upward toward the main slit 183 and the cooking vessel.
- the constitution of the convex lens 170 will be described later.
- the base portion 161 is in close contact with the bottom portion 162 (FIG. 17) formed horizontally in the lower portion, the vertical portion 163 (FIG. 17) extending to a predetermined height from the bottom portion 162, and the light source cover 180. It may include a flange portion 164 (FIG. 17) extending horizontally from the vertical portion 163 to be coupled.
- the convex lens 170 may be formed at the bottom 162.
- the bottom part 162 may include a close protrusion 162a (FIG. 11) that protrudes downward to be in close contact with the printed circuit board 156.
- the vertical portion 163 may block heat generated from the induction coil 130 from being transmitted to the convex lens 170 and the light source 151.
- the optical member 160 may be fixed to the printed circuit board 156 and the substrate support 112 by a fastening member S3 such as a screw.
- the light source cover 180 may cover the convex lens 170 to prevent foreign matter from penetrating into the convex lens 170.
- the light source cover 180 has a radially outer side between the first cover portion 181, the radially inner side second cover portion 182, and the first cover portion 181 and the second cover portion 182.
- the main slit 183 is formed.
- the first cover part 181 and the second cover part 182 may be in close contact with the flange part 164 of the optical member 160.
- the main slit 183 of the light source cover 180 serves to form a flame image in the cooking vessel by passing the light emitted from the LED 151.
- the light source cover 180 passes light through the main slit 183 to the cooking vessel during the light emitted from the LED 181 and covers the remaining light.
- the main slit 183 is located radially inward above the vertical direction of the LED 151. Therefore, the light emitted from the LED 151 proceeds to the main slit 183 inclined upward.
- the main slit 183 may be formed in a range of an angle along the circumferential direction.
- the main slit 183 is formed in the range of 120 degrees along the circumferential direction, but is not limited thereto and may be formed in the range of 180 degrees or 360 degrees.
- the main slit 183 may be continuously formed along the circumferential direction with a predetermined thickness D1 (FIG. 17).
- the main slit D1 only affects the height of the flame image and may not affect the width of the flame image. That is, the height of the flame image is determined by the thickness of the main slit D1, but the width of the flame image may be determined by the shapes of the LED 151 and the convex lens 170.
- the light source cover 180 may include at least one reinforcing bridge 184 formed in the main slit 183 to maintain a constant thickness D1 of the main slit 183 and prevent deformation of the main slit 183 due to an external force. 9).
- the reinforcing bridge 184 connects the first cover part 181 and the second cover part 182 to cross the main slit 183.
- One or more reinforcement bridges 184 may be formed at positions that do not interfere with the light streaks so as not to affect the flame image.
- the light source cover 180 may be coupled to the optical member 160 by a coupling protrusion structure or a fastening member.
- the coupling protrusion structure may include a coupling hole 185 formed in the light source cover 180 and a coupling protrusion 164a formed in the optical member 160.
- the light source cover 180 may be coupled to the substrate support 112 by the fastening member S4.
- the light source module 150, the optical member 160, and the light source cover 180 are integrally coupled to the substrate support 112, and thus, the LED 151 of the light source module 150 and The distance tolerance between the main slits 183 of the light source cover 180 is minimized.
- the distance between the LED 151 of the light source module 150 and the main slit 183 of the light source cover 180 is the factor that has the greatest influence on the size and brightness of the flame image formed in the cooking vessel, and according to the first embodiment of the present invention, As described above, the induction heating cooking apparatus according to the embodiment is provided separately from the main board 111 and the printed circuit board 156 of the light source module 150 is mounted on the substrate support 112 having a high flatness, and the light source Since the module 150, the optical member 160, and the light source cover 180 are integrally coupled, as a result, the distance between the LED 151 of the light source module 150 and the main slit 183 of the light source cover 180 is as a result. Tolerance is minimized, and thus the quality of the flame image and the reliability of the product can be improved.
- FIG. 10 is a perspective view illustrating a convex lens of the induction heating cooker of FIG. 1.
- FIG. 11 is a cross-sectional view illustrating a convex lens of the induction heating cooker of FIG. 1.
- 12 is a view for explaining the length of the incident surface of the convex lens when the LED of the induction heating cooker of FIG. 1 has three chips of RGB.
- FIG. 13 is a view illustrating a corrosion pattern formed on an incident surface of a lens to mix red light, green light, and blue light when an LED of the induction heating cooker of FIG. 1 has three chips of RGB.
- An enlarged drawing. 14 is a view for explaining the length of the incident surface of the convex lens when the LED of the induction heating cooker of FIG. 1 has one chip of WHITE.
- 15 is another embodiment of a convex lens of the induction heating cooker of FIG. 1.
- the convex lens 170 refracts light emitted vertically upward from the LED 151 to change the direction of travel obliquely toward the main slit 183 and to condense the light.
- the convex lens 170 may include a hemisphere 171 having a hemispherical appearance and a protrusion 172 protruding outward from the hemisphere 171.
- the hemisphere 171 is located in the direction facing the main slit 183, and the protrusion 172 is located in the opposite direction.
- the protrusion 172 has a substantially hexahedral shape, but the shape of the protrusion 172 is not limited.
- the protrusion 172 is not necessarily essential. As shown in FIG. 15, the convex lens 170c may include only the hemisphere 171c without a protrusion. The reason is explained next.
- the convex lens 170 has an empty space 173 therein.
- the convex lens 170 may have an accommodation space 174 to accommodate the LED 151.
- the empty space 173 may have a substantially triangular shape, and the receiving space 174 may have a substantially rectangular shape.
- the light emitted from the LED 151 may travel toward the incident surface 175 of the convex lens 170 in the triangular empty space 173.
- Protruding portion 172 is to assist the molding of the convex lens 170, a triangle so that the resin is evenly filled in the vicinity of the vertex 173a of the triangular shape of the empty space 173 during the injection molding of the convex lens 170. It serves to widen the distance G1 between the vertex 173a of the shape and the outer surface 172a of the protrusion 172 adjacent thereto. As the interval is widened, the resin can be sufficiently sufficiently filled evenly during the filling of the resin.
- the convex lens 170 may have a first incident surface 175 and a second incident surface 176.
- the first incident surface 175 refracts the light emitted from the LED 151 toward the main slit 183.
- the first incident surface 175 is formed in a plane, and is inclined at a predetermined angle with respect to the countertop 120. Since the first incident surface 175 substantially changes the direction of light from the LED 151 to the main slit 183 side, the flatness or angle must be precisely designed. Since the light passing through the surface 176 is mostly obscured by the light source cover 180, the shape or angle of the second incident surface 176 may be freely designed.
- the convex lens 170 has an emission surface 177 on which light refracted through the first entrance surface 175 is projected.
- the exit surface 177 is provided to face the main slit 183.
- the exit surface 177 may be a spherical surface or a curved surface having a predetermined curvature.
- the exit surface 177 is formed to be convex outward to condense light. For example, when the directing angle of the light emitted from the LED 151 is approximately 120 degrees, the directing angle of the light passing through the convex lens 170 may be narrowed to approximately 45 degrees to 65 degrees.
- the straightness of the light is improved, and the light intensity can be increased without increasing the output of the LED 151.
- the shape of the flame image (F) formed in the cooking container by the refraction effect of the light has a three-dimensional effect can be more similar to the actual flame.
- the length L1 of the incident surface 175 of the convex lens 170 and the size of the empty space 173 may be determined by the number of the chips 152, 153, and 154 of the LED 151, and the position and orientation angle. have.
- the length L1 of the incident surface 175 is located closest to the incident surface 175. It should have a sufficient length to cover both the light emitted from the) and the light emitted from the most distant chip 152.
- the length L2 of the incident surface 175b of the convex lens 170b is determined by one chip 155. It is enough to cover only the light emitted. That is, the length L2 of the incident surface 175b of the convex lens 170b and the size of the empty space 173b in the case where the LED 151 has one chip 155 are 3 respectively. It is smaller than the length L1 of the incident surface 175 of the convex lens 170 and the size of the empty space 173 in the case of having two chips 152, 153, 154.
- the incident surface 175 of the convex lens 170 has a corrosion pattern 178 (FIG. 13) that mixes light emitted from each chip 152, 153 and 154 of RGB to emit one color.
- the corrosion pattern 170 is formed on the incident surface 175, but may be formed on the emission surface 177.
- the corrosion pattern 178 may include irregularities that may vary the refractive angle of the light in various ways.
- the corrosion pattern 178 may be molded together at the time of molding the convex lens 170. That is, by forming the corrosion pattern 178 in the molding die of the convex lens 170, the resin-filled surface corrosion pattern 178 may be completed together.
- FIG. 16 is a schematic view illustrating a structure in which a flame of the induction heating cooker of FIG. 1 is formed.
- 17 is a cross-sectional view illustrating a structure in which a flame of the induction heating cooker of FIG. 1 is formed.
- 18 is a view for explaining a screen of the induction heating cooking apparatus of FIG. 19 is a view showing the action of the transverse hairline on the surface of the cooking vessel placed in the induction heating cooker of FIG. 20 is a view showing a state in which a virtual flame image is formed on the surface of the cooking vessel placed in the induction heating cooker of FIG.
- the induction heating cooking apparatus 100 includes a cooking panel 121 having at least a portion formed of a transparent material, and a light blocking layer 123 provided on the bottom of the cooking panel 121 and having an auxiliary slit 124. And a light source module 150 having an induction coil 130 for generating a magnetic field to inductively heat the cooking vessel C, a printed circuit board 156 on which the plurality of light sources 151 are mounted, and a light source module 150.
- Optical member 160 having a convex lens 170 for redirecting and condensing the light emitted from the light source; and light emitted from the light source module 150 to form a flame image F in the cooking vessel C.
- a light source cover 180 having a main slit 183 through the light source and a light source module 150 provided on the upper surface of the cooking panel 121 to minimize the direct exposure of the light of the light source module 150 to the user to conceal the light source 151. It may include a screen 127 to be.
- a current is applied to the light source 151 of the light source module 150 to emit light.
- the light emitted vertically upward from the light source 151 passes through the convex lens 170 of the optical member 160 and is shifted obliquely toward the main slit 183 and is collected.
- Light passing through the main slit 183 passes through the auxiliary slit 124 and is projected onto the bottom surface of the cooking vessel (C).
- the light projected onto the cooking vessel C is scattered and reflected in the vertical direction by the horizontal hairline H processed on the surface S of the cooking vessel C, and is similar to the actual flame.
- Image F can be formed.
- FIG. 21 is a view schematically showing a main configuration of an induction heating cooker according to a second embodiment of the present invention.
- 22 is a view schematically showing the main configuration of the induction heating cooking apparatus according to a third embodiment of the present invention.
- FIG. 23 is a view schematically showing a main configuration of an induction heating cooker according to a fourth embodiment of the present invention.
- the induction heating cooker 200 includes a cooking panel 121 having at least a portion formed of a transparent material, and a light blocking layer provided on the bottom of the cooking panel 121 and having an auxiliary slit 124.
- a light source module 150 having a 123, an induction coil 130 for generating a magnetic field to inductively heat the cooking vessel C, a printed circuit board 156 on which a plurality of light sources 151 are mounted, and a light source
- the optical member 160 having the convex lens 170 for redirecting and condensing the light emitted from the module 150 and the light emitted from the light source module 150 to form a flame image in the cooking vessel C. It may include a light source cover 180 having a main slit 183 for passing through.
- the light emitted from the light source 151 among the components of the induction heating cooking apparatus 100 according to the first embodiment of the present invention is provided by the user.
- the shielding film 127 provided on the upper surface of the cooking panel 121 is omitted to minimize the direct exposure to the light source 151. Since the light of the LED 121 is directly exposed to the user in the form of a thin band through the auxiliary slit 124 depending on the absence of the shielding film 127, the aesthetics may be slightly reduced, but it does not interfere with the formation of the flame image. to be.
- the induction heating cooker 300 includes a cooking panel 121 having at least a portion formed of a transparent material, and a light blocking layer provided on the bottom of the cooking panel 121 and having an auxiliary slit 124.
- a light source module 150 having a 123, an induction coil 130 for generating a magnetic field to inductively heat the cooking vessel C, a printed circuit board 156 on which the plurality of light sources 151 are mounted, and cooking
- a light source cover 180 having a main slit 183 for passing light emitted from the light source module 150 to form a flame image in the container C, and the light of the light source module 150 is directly exposed to the user. It may include a shielding film 127 provided on the upper surface of the cooking panel 121 to minimize the concealed light source 151.
- the induction heating cooker 300 according to the third embodiment of the present invention is the progress of light emitted from the light source module 150 among the components of the induction heating cooker 100 according to the first embodiment of the present invention.
- the optical member 160 having the convex lens 170 for changing the direction and condensing is omitted.
- the light emitted from the light source module 150 may pass through the main slit 183 of the light source cover 180 to form a flame image in the cooking container C.
- the concentration of light may be reduced, and thus the brightness of the flame image may be weak, but this may be compensated by increasing the output of the LED 151.
- the induction heating cooking apparatus 400 includes a cooking panel 121 formed at least partially of a transparent material, and an auxiliary slit 124 provided on a bottom surface of the cooking panel 121.
- a light source module 150 having a light blocking layer 123, an induction coil 130 generating a magnetic field to inductively heat the cooking vessel C, and a printed circuit board 156 on which the plurality of light sources 151 are mounted;
- the light source cover 183 may include a light source cover 183 having a main slit 183 for passing light emitted from the light source module 150 to form a flame image in the cooking container C.
- the optical member 160 and the screen 127 are formed. All are omitted.
- FIG. 24 is a diagram schematically showing a main configuration of an induction heating cooker according to the fifth embodiment of the present invention.
- 25 is a perspective view illustrating a structure of a total reflection lens of the induction cooker of FIG. 24.
- FIG. 26 is a view for explaining the operation of the total reflection lens of the induction heating cooker of FIG. 24.
- the induction heating cooker 500 includes a worktop 120 having an auxiliary slit 124 through which light passes, and an induction coil 130 generating a magnetic field to inductively heat the cooking vessel C placed on the worktop 120.
- a light source module 150 having a printed circuit board 156 mounted with a plurality of light sources 151, an optical member 560 for changing and converging the traveling direction of light emitted from the light source module 150, It may include a light source cover 180 having a main slit 183 for passing the light emitted from the light source module 150 to form a flame image in the cooking vessel (C).
- the optical member 560 may include a total reflection lens 570 and a base portion 561 that supports the total reflection lens 570 and couples the optical member 560 to another accessory. Since the base portion 561 is the same as the other embodiments, description thereof will be omitted.
- the total reflection lens 570 includes a light source accommodating part 571 having an accommodating space 571 a in which the light source 151 is accommodated, and a lens part 572 formed to be gently inclined over the light source accommodating part 571. It may include.
- the lens unit 572 may be formed to be gently inclined toward the main slit 183.
- the total reflection lens 570 includes an incident surface 573 to which light from the light source 151 is incident, a total reflection surface 574 for totally reflecting light, and an emission surface 575 for outputting light reflected from the total reflection surface 574.
- Can have The incident surface 573 is formed at the lower end of the lens portion 572, the lens portion 572 of the exit surface 575 is formed at the upper end, and the total reflection surface 574 is the entrance surface 573 and the exit surface 575. It may be formed between).
- the incident surface 573 may be formed convexly inward to condense light.
- the incident surface may be spherical or another curved surface.
- the total reflection surface 574 may have an appropriate inclination angle so that light propagated into the total reflection lens 570 through the entrance surface 573 is totally reflected.
- the total reflection refers to a phenomenon in which light is completely reflected at the interface when the incident angle is larger than the critical angle when the light is advanced from the medium having a large refractive index to the medium having a small refractive index.
- the incident angle ⁇ 1 is larger than the critical angle at the total reflection surface 574 of the total reflection lens 570 so that it is totally reflected without being transmitted.
- the light propagated to the total reflection surface 574 at the incident angle ⁇ 1 larger than the critical angle may be totally reflected at the total reflection surface 574 and proceed to the emission surface 575 at the reflection angle ⁇ 2 equal to the incident angle ⁇ 1.
- the exit surface 575 is provided to face the main slit 183 and is convexly formed to the outside to condense the emitted light.
- the exit surface may be spherical or another surface.
- FIG. 27 is a view schematically showing the main configuration of the induction heating cooking apparatus according to the sixth embodiment of the present invention.
- 28 is a diagram illustrating a structure of a split lens of the induction heating cooker of FIG. 27.
- FIG. 29 is a view for explaining an operation of a split lens of the induction cooker of FIG. 27.
- the induction heating cooker 600 generates a magnetic field for induction heating of the worktop 120 having the auxiliary slit 124 through which light passes and the cooking vessel C placed on the worktop 120.
- a light source module 150 having a printed circuit board 156 mounted with a plurality of light sources 151, an optical member 660 which switches and condenses the traveling direction of light emitted from the light source module 150, and It may include an optical cover 180 having a main slit 183 for passing the light emitted from the light source module 150 to form a flame image in the cooking vessel (C).
- the optical member 660 may include a split lens 670 and a base portion 661 that supports the split lens 670 and couples the optical member 660 to another accessory. Since the base portion 661 is the same as the other embodiments, a description thereof will be omitted.
- the divided lenses 670 are provided as many as the number of light sources 151.
- the split lens 670 may form two light lines from one light source 151. Thus, two flame images can be formed from one light source 151.
- the split lens 670 may be symmetrical with respect to the center plane P.
- FIG. The split lens 670 may have a common incidence surface 671 formed in the lower center portion, and a pair of emission surfaces 672 and 673 provided on the left and right sides with respect to the center plane P, respectively.
- the pair of exit surfaces 672 and 673 may be provided to face the main slit 183.
- Light incident through the common incident surface 671 may be reflected several times inside the split lens 670 and branched to the pair of exit surfaces 672 and 673.
- the pair of exit surfaces 672 and 673 may be formed to be convex outward to collect light.
- the pair of exit surfaces 672 and 673 may be spherical or other curved surfaces. Light emitted from the pair of exit surfaces 672 and 673 may be inclined upward toward the main slit 183.
- two flame images may be formed through one light source 151, thereby reducing the number of necessary light sources 151.
- the reduced brightness of the flame image may be compensated by increasing the output of the light source 151.
- the split lens may have one common incidence surface and three or more emission surfaces to emit three or more light lines from one light source and form three or more flame images.
- FIG. 30 is a view schematically showing the main configuration of the induction heating cooking apparatus according to the seventh embodiment of the present invention.
- FIG. 31 is a view illustrating a structure of an overlap lens of the induction heating cooker of FIG. 30.
- 32 is a view for explaining the operation of the overlap lens of the induction heating cooker of FIG.
- the induction heating cooker 700 includes a worktop 120 having an auxiliary slit 124 through which light passes, and an induction coil 130 generating a magnetic field to inductively heat the cooking vessel C placed on the worktop 120.
- a light source module 150 having a printed circuit board 156 mounted with a plurality of light sources 151, an optical member 760 for changing and converging the traveling direction of light emitted from the light source module 150, It may include a light source cover 180 having a main slit 183 for passing the light emitted from the light source module 150 to form a flame image in the cooking vessel (C).
- the optical member 760 may include a superposition lens 770 and a base portion 761 that supports the superposition lens 770 and couples the optical member 760 to another accessory. Since the base portion 761 is the same as in the other embodiments, description thereof is omitted.
- the overlap lens 770 is provided by half of the number of the light sources 151.
- the superimposed lens 770 may form one ray of light from two light sources 151. Thus, one flame image can be formed from the two light sources 151.
- the overlap lens 770 may be symmetrical with respect to the center plane P.
- the superimposition lens 770 may have a pair of entrance surfaces 771 and 772 having angles formed at the lower left and right sides of the center plane P, and a common exit surface 773 provided at the center portion.
- the common exit surface 773 may be provided to face the main slit 183.
- the light emitted through the common exit surface 773 may be inclined upward toward the main slit 183.
- the light incident through the pair of entrance surfaces 771 and 772 may be reflected several times inside the overlap lens 770 and may overlap the common exit surface 773.
- the common exit surface 773 may be formed to be convex outward to collect light.
- the common exit surface 773 may be spherical or another curved surface.
- the overlap lens 770 since one flame image may be formed through two light sources 151, the brightness of the flame image may be greatly improved.
- the overlapping lens may have three or more incidence planes and one common emission plane to emit one ray of light from three or more light sources and form one flame image.
- FIG. 33 is a diagram schematically showing a main configuration of an induction heating cooker according to an eighth embodiment of the present invention.
- 34 is a perspective view illustrating a structure of a concave mirror of the induction heating cooker of FIG. 33.
- 35 is a view for explaining the operation of the concave mirror of the induction heating cooker of FIG.
- the induction heating cooker 800 generates a magnetic field to induce heating of a worktop 120 having an auxiliary slit 124 through which light passes, and a cooking vessel C placed on the worktop 120.
- a light source module 150 having a printed circuit board 156 on which a plurality of light sources 151 are mounted, an optical member 860 for converting and converging the traveling direction of light emitted from the light source module 150, It may include a light source cover 180 having a main slit 183 for passing the light emitted from the light source module 150 to form a flame image in the cooking vessel (C).
- the optical member 860 may include a concave mirror 870 and a base portion 861 that supports the concave mirror 870 and couples the optical member 860 to another accessory. Since the base portion 861 is the same as the other embodiments, description thereof will be omitted.
- the concave mirror 870 may include a mirror portion 873 that reflects light toward the main slit 183 and a support portion 871 provided below the mirror portion 873 to support the mirror portion 831. have.
- the mirror 831 may be formed to be inclined toward the main slit 183.
- the mirror 831 may be provided to be rotatable with respect to the support 871 so as to adjust the reflection angle of the mirror 831.
- the support part 871 may have an accommodation space 872 in which the LED 151 is accommodated.
- the mirror part 873 may have a reflecting surface 874 reflecting light emitted from the LED 151 toward the main slit 183.
- the reflective surface 874 may be recessed inwardly to focus light.
- the reflective surface 874 may be spherical or other curved surface. Light reflected from the reflective surface 874 may proceed upwardly inclined toward the main slit 183.
- FIG. 36 is a diagram schematically showing a main configuration of an induction heating cooker according to a ninth embodiment of the present invention.
- FIG. 37 is a view illustrating a structure of a light guide bar of the induction heating cooker of FIG. 36.
- FIG. 37 is a view illustrating a reflection pattern of a light guide bar of the induction heating cooker of FIG. 36.
- 39 is a view for explaining the operation of the light guide bar of the induction heating cooker of FIG.
- Induction heating cooking apparatus 900 is a worktop 120 having an auxiliary slit 124 through which light passes, and an induction coil 130 for generating a magnetic field to inductively heat the cooking vessel C placed on the worktop 120.
- a light source module 950 having a printed circuit board 956 on which at least one light source 951 is mounted, an optical member 960 for converting and condensing a traveling direction of light emitted from the light source module 950;
- the light source cover 180 may include a light source cover 180 having a main slit 183 for passing light emitted from the light source module 950 to form a flame image in the cooking container C.
- the optical member 960 may be a light guide bar 960.
- the induction heating cooker 900 has two light source modules 950, and each light source module 950 may include one printed circuit board 956 and one light source 951. have. Light emitted from the two light source modules 950 passes through the light guide bar 960 and is emitted by a plurality of light lines.
- the present invention is not limited thereto, and the induction heating cooking apparatus 900 may have one light source module 950 or three or more light source modules 950.
- a plurality of light sources 951 may be mounted on the printed circuit board 956.
- the light guide bar 960 may have a substantially arc shape, and light source modules 950 may be disposed at both ends thereof.
- a pair of incident surfaces 961 and 962 may be formed at both ends of the light guide bar 960.
- the printed circuit board 956 of the light source module 950 may be disposed substantially vertically such that the LEDs 951 mounted thereon face the entrance surfaces 961 and 962 of the light guide bar 960.
- the light guide bar 960 may be provided to have a closed ring shape of 360 degrees.
- the light guide bar 960 has a flat reflective surface 963, a first surface 964, a second surface 965, a third surface 966, and a fourth surface 967.
- the reflective surface 963 may be provided in various shapes such as a triangle, a square, a circle, and other curved shapes as long as the flat surface is formed, and the shape is not limited.
- the reflective surface 963 may be provided to be inclined with respect to the countertop 120.
- a plurality of reflective patterns 964 may be formed on the reflective surface 963 to be spaced apart by a predetermined interval along the length direction of the light guide bar 960.
- the reflective pattern 964 may reflect light toward the main slit 183.
- the reflective pattern 964 may be provided to focus light.
- the reflection pattern 964 may be provided in the same number as the number of flame images. That is, the flame image may be formed in the cooking container by the number of reflection patterns 964.
- the reflective pattern 964 may have various shapes, such as irregularities, such as a prism shape, a spherical shape, and a cylindrical shape.
- the induction heating cooking apparatus may change or condense the light emitted from the light source module through various optical members 560, 660, 760, 860 and 960 to form a flame image similar to reality. .
- the operation unit 14 for receiving the output level of the induction heating cooker 100 may include an operation knob 14a rotatably provided.
- the operation knob 14a can rotate in the clockwise direction C or counterclockwise direction CC.
- An output level mark 14b may be provided at the edge of the operation knob 14a to display the output level.
- the output level mark 14b can rotate with the operation knob 14a.
- An indication mark 14c for indicating the output level selected by the operation knob 14a may be formed in the main body of the induction heating cooker 100.
- the indication mark 14c is fixed to the main body of the induction heating cooker 100.
- the instruction mark 14c is provided substantially above the operation knob 14a, but the position of the instruction mark 14c is not limited.
- the user may rotate the operation knob 14a to some extent in the direction of the induction heating cooker main body (P). Due to the operation of the operation knob 14a, the induction heating cooker 100 may further feel like a gas range.
- the output level mark 14b rotates together with the operation knob 14a, and the plurality displayed on the output level mark 14b.
- An output level facing the indication mark 14c among the output levels of the input signal may be input to the induction heating cooker 10.
- the maximum output level may be input to the induction heating early 1.
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Abstract
Description
Claims (41)
- 빛을 통과시키는 보조 슬릿을 갖는 조리대;상기 조리대 위에 올려 놓인 조리 용기를 유도 가열하도록 자기장을 발생시키는 유도 코일;상기 유도 코일의 외곽에 배치되는 적어도 하나의 광원;상기 광원에서 발산되는 빛의 진행 방향을 전환하고 집광시키는 광학 부재; 및상기 조리 용기에 불꽃 이미지를 형성시키도록 상기 광학 부재에서 출사된 빛을 통과시키는 메인 슬릿; 을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 볼록 렌즈를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 2 항에 있어서,상기 볼록 렌즈의 입사면은 평면으로 형성되고, 상기 조리대에 경사지게 형성된 것을 특징으로 하는 유도 가열 조리기기.
- 제 2 항에 있어서,상기 볼록 렌즈의 출사면은 외측으로 볼록한 곡면으로 형성되고, 상기 메인 슬릿을 바라보도록 마련된 것을 특징으로 하는 유도 가열 조리기기.
- 제 2 항에 있어서,상기 볼록 렌즈의 입사면은 상기 광원 모듈의 적어도 하나의 칩에서 발산되는 빛을 모두 커버하도록 충분한 길이를 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 2 항에 있어서,상기 볼록 렌즈의 입사면은 상기 광원의 복수의 칩에서 발산되는 빛을 상호 섞기 위한 부식 패턴을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 볼록 렌즈는 내부에 측면에서 바라볼 때 삼각형 형상의 빈 공간을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 전반사 렌즈를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 8 항에 있어서,상기 전반사 렌즈는 접근한 빛을 투사시키지 않고 전부 반사시키는 전반사면을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 9 항에 있어서,상기 전반사 렌즈의 전반사면으로 진행한 빛은 상기 전반사 렌즈의 출사면 측으로 반사되는 것을 특징으로 하는 유도 가열 조리기기.
- 제 8 항에 있어서,상기 전반사 렌즈의 입사면은 빛을 집광하도록 전반사 렌즈의 내측으로 볼록한 구면으로 형성된 것을 특징으로 하는 유도 가열 조리기기.
- 제 8 항에 있어서,상기 전반사 렌즈의 출사면은 빛을 집광하도록 전반사 렌즈의 외측으로 볼록한 구면으로 형성되고, 상기 메인 슬릿을 바라보도록 마련된 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 하나의 광원에서 복수의 빛줄기를 형성하는 분할 렌즈를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 13 항에 있어서,상기 분할 렌즈는 하나의 공통 입사면과, 복수의 출사면을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 13 항에 있어서,상기 분할 렌즈는 중심면을 기준으로 좌우 대칭인 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 복수의 광원에서 하나의 빛줄기를 형성하는 중첩 렌즈를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 16 항에 있어서,상기 중첩 렌즈는 복수의 입사면과, 하나의 공통 출사면을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 16 항에 있어서,상기 분할 렌즈는 중심면을 기준으로 좌우 대칭인 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 오목 거울을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 19 항에 있어서,상기 오목 거울은 빛을 집광하도록 오목한 반사면을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 1 항에 있어서,상기 광학 부재는 원호 형상의 도광바를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 21 항에 있어서,상기 도광바의 양단부에 복수의 입사면이 형성된 것을 특징으로 하는 유도 가열 조리기기.
- 제 21 항에 있어서,상기 도광바는 상기 조리대에 대해 경사지게 마련되는 반사면을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 22 항에 있어서,상기 도광바는 상기 입사면을 통해 입사된 빛을 상기 메인 슬릿 측으로 반사시키도록 상기 반사면에 상기 도광바의 길이 방향을 따라 상호 이격되게 형성되는 복수의 반사 패턴을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 24 항에 있어서,상기 반사 패턴의 개수 만큼 상기 조리 용기에 불꽃 이미지가 형성되는 것을 특징으로 하는 유도 가열 조리기기.
- 보조 슬릿을 갖는 조리대;자기장을 발생시키는 유도 코일;상기 유도 코일의 외곽에 배치되는 복수의 광원과, 상기 복수의 광원이 실장된 인쇄회로기판을 갖는 광원 모듈;상기 광원 모듈에서 발산되는 빛의 진행 방향을 전환하고 집광시키는 볼록 렌즈; 및상기 조리 용기에 불꽃 이미지를 형성시키도록 상기 볼록 렌즈에서 출사되는 빛을 통과시키는 메인 슬릿을 갖는 광원 커버; 를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈의 입사면은 평면으로 형성되고, 상기 조리대에 경사지게 형성된 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈의 출사면은 외측으로 볼록한 곡면으로 형성되고, 상기 메인 슬릿을 바라보도록 마련된 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈의 입사면은 상기 광원 모듈의 적어도 하나의 칩에서 발산되는 빛을 모두 커버하도록 충분한 길이를 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈의 입사면은 상기 광원의 복수의 칩에서 발산되는 상호 섞기 위한 부식 패턴을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 30 항에 있어서,상기 부식 패턴은 상기 볼록 렌즈의 성형 시에 상기 볼록 렌즈와 함께 성형된 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈는 내부에 측면에서 바라볼 때 삼각형 형상의 빈 공간을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈는 상기 광원을 수용하는 수용 공간을 갖는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈는 반구 형상의 외관을 갖는 반구부와, 상기 반구부 보다 외측으로 돌출되는 돌출부를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈는 상기 광원의 수만큼 마련되는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 광원 모듈에서 상방으로 발산되는 빛은 상기 볼록 렌즈를 거쳐 진행 방향이 내측으로 상향 경사지게 전환되는 것을 특징으로 하는 유도 가열 조리기기.
- 제 26 항에 있어서,상기 볼록 렌즈를 지지하는 베이스부를 더 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 37 항에 있어서,상기 베이스부는 하부에 수평하게 형성되는 바닥부와, 바닥부에서 소정 높이로 연장되는 수직부와, 수직부에서 수평하게 연장되는 플랜지부를 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 제 38 항에 있어서,상기 볼록 렌즈와 상기 베이스부는 일체로 형성되는 것을 특징으로 하는 유도 가열 조리기기.
- 적어도 일부가 투명한 재질로 형성되는 조리 패널과, 상기 조리 패널의 저면에 마련되고 보조 슬릿을 갖는 광차단층을 포함하는 조리대;자기장을 발생시키는 유도 코일;상기 유도 코일의 외곽에 배치되는 적어도 하나의 광원;상기 광원 모듈에서 발산되는 빛의 진행 방향을 전환하고 집광시키는 광학 부재;상기 조리 용기에 불꽃 이미지를 형성시키도록 상기 광학 부재에서 발산되는 빛을 통과시키는 메인 슬릿을 갖는 광원 커버; 및상기 보조 슬릿을 통해 상기 광원에서 발산되는 빛이 사용자의 시야에 직접 노출되는 것을 최소화하도록 상기 조리 패널의 상면에 마련되는 가림막; 을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
- 조리 용기가 올려 놓이는 조리대;상기 조리대 위에 올려 놓인 조리 용기를 유도 가열하도록 자기장을 발생시키는 유도 코일;발광면이 수직 상방을 향하도록 마련되는 광원;상기 광원에서 발산되는 빛의 방향을 상기 조리대에 대해 경사지게 전환시키는 광학 부재; 및상기 광학 부재에서 출사된 빛의 일부를 통과시켜 상기 조리 용기에 불꽃 이미지를 형성시키는 슬릿; 을 포함하는 것을 특징으로 하는 유도 가열 조리기기.
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CA2950861A CA2950861C (en) | 2014-05-30 | 2015-05-20 | Induction heating cooking device |
US15/315,196 US10834787B2 (en) | 2014-05-30 | 2015-05-20 | Induction heating cooking device |
EP15798846.0A EP3150921B1 (en) | 2014-05-30 | 2015-05-20 | Induction heating cooking device |
JP2017515644A JP6622296B2 (ja) | 2014-05-30 | 2015-05-20 | 誘導加熱調理機器 |
CN201580039644.4A CN106574781B (zh) | 2014-05-30 | 2015-05-20 | 感应加热烹饪装置 |
US17/073,714 US11191130B2 (en) | 2014-05-30 | 2020-10-19 | Induction heating cooking device |
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US20190373682A1 (en) * | 2016-11-21 | 2019-12-05 | Samsung Electronics Co., Ltd. | Induction heating cooking apparatus and method of displaying cooking information thereof |
US11638332B2 (en) * | 2016-11-21 | 2023-04-25 | Samsung Electronics Co., Ltd. | Induction heating cooking apparatus and method of displaying cooking information thereof |
Also Published As
Publication number | Publication date |
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KR102270491B1 (ko) | 2021-06-29 |
CA2950861A1 (en) | 2015-12-03 |
US20170196048A1 (en) | 2017-07-06 |
US10834787B2 (en) | 2020-11-10 |
US11191130B2 (en) | 2021-11-30 |
EP3150921B1 (en) | 2021-10-06 |
CA2950861C (en) | 2018-06-05 |
JP2017517132A (ja) | 2017-06-22 |
EP3150921A1 (en) | 2017-04-05 |
JP6622296B2 (ja) | 2019-12-18 |
EP3150921A4 (en) | 2018-01-17 |
CN106574781A (zh) | 2017-04-19 |
CN106574781B (zh) | 2021-03-09 |
US20210037617A1 (en) | 2021-02-04 |
KR20150137803A (ko) | 2015-12-09 |
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