WO2017104892A1 - Cuiseur de riz électrique - Google Patents

Cuiseur de riz électrique Download PDF

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Publication number
WO2017104892A1
WO2017104892A1 PCT/KR2016/001678 KR2016001678W WO2017104892A1 WO 2017104892 A1 WO2017104892 A1 WO 2017104892A1 KR 2016001678 W KR2016001678 W KR 2016001678W WO 2017104892 A1 WO2017104892 A1 WO 2017104892A1
Authority
WO
WIPO (PCT)
Prior art keywords
pattern
heating element
planar heating
rice cooker
electric rice
Prior art date
Application number
PCT/KR2016/001678
Other languages
English (en)
Korean (ko)
Inventor
김동원
Original Assignee
주식회사 대유위니아
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 대유위니아 filed Critical 주식회사 대유위니아
Priority to CN201690001451.XU priority Critical patent/CN209219933U/zh
Publication of WO2017104892A1 publication Critical patent/WO2017104892A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086—Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater

Definitions

  • the present invention relates to an electric rice cooker including a ring-shaped case installed on the inner upper portion of the base and a planar heating element fixed to the outer surface of the ring-shaped case.
  • the electric rice cooker is a device that can selectively perform the cooking function to cook rice, and the warming function to keep the cooked rice at a constant temperature.
  • the rice cooker is installed to open and close the lid is formed in the steam discharge hole in the upper portion of the main body, the inner pot is detachably built-in, the inner pot lid is provided separately to cover the inner pot, the inside of the main body
  • the cooking object accommodated in the inner pot that is, rice or grains, and has a structure that is provided with a heater of the induction heating method or hot plate method to transfer the heat to cook.
  • the electric pressure cooker is further provided with a locking means capable of sealing the inside of the main body, and a steam discharge valve (solenoid valve) for controlling the discharge of steam in the main body.
  • a steam discharge valve solenoid valve
  • FIG 5 shows an electric rice cooker using the conventional general induction heating principle shown in Figure 1 of Korean Patent Laid-Open No. 2004-0081909.
  • the electric rice cooker using the conventional induction heating principle is largely composed of a cover 2 for opening and closing the main body 1 and the main body 1 of the product.
  • the inner pot 11 is detachably installed inside the main body 1, and a working coil 13 for induction heating the inner pot 11 is installed on an outer circumferential surface of the inner pot 11.
  • the coil base 15 is disposed between the working coil 13 and the inner pot 11 to support the working coil 13.
  • the coil base 15 is mainly used with a PET-based resin injection product having good heat resistance.
  • the case heater coil 23 for heating the ring case 21 is installed on the outer surface of the ring case 21 is supplied with power to operate It is composed.
  • the case heater coil 23 is mainly operated when warming after cooking is completed and sometimes used as an auxiliary heat source when heating.
  • the present applicant has proposed an electric rice cooker employing a planar heating element in order to solve the problem of the conventional linear case heater coil.
  • Patent Document 1 Korean Patent Publication No. 2004-0081909
  • the present invention is to improve the electric rice cooker proposed by the present applicant relates to an electric rice cooker that can improve the durability of the planar heating element by preventing local heat concentration in the resistance heating element pattern.
  • the electric rice cooker of the present invention is a ring-shaped case installed on the inner upper portion of the base for heating the inner pot;
  • a planar heating element fixed to an outer surface of the ring-shaped case and comprising a planar heating element body;
  • the planar heating element is a first film layer adjacent to the inner pot and the resistance heating element pattern is printed;
  • a second film layer disposed outside from the inner pot than the first film layer, wherein the resistance heating element pattern includes a plurality of first patterns disposed along a length direction of the planar heating body and a width direction of the planar heating body. It includes a plurality of second patterns disposed along the, it characterized in that the second pattern and the first pattern is connected to each other.
  • the electric rice cooker of the present invention is characterized in that the end of the second pattern and the end of the first pattern is connected.
  • the electric rice cooker of the present invention is characterized in that a round is formed at the end of the second pattern and the connecting portion of the end of the first pattern.
  • a distance between one first pattern and another first pattern adjacent to the first pattern is referred to as d1, and a distance between one second pattern and another second pattern adjacent to the second pattern is determined.
  • d2 it is characterized by d1 ⁇ d2.
  • Electric rice cooker of the present invention is characterized in that d2 is formed at least 2.3 times larger than d1.
  • FIG. 2 is an exploded perspective view of FIG.
  • Figure 3 is a perspective view of the planar heating element in a preferred embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing a conventional induction heating rice cooker.
  • planar heating element 5 is a plan view of the planar heating element in a preferred embodiment of the present invention
  • FIG. 6 is a plan view of a conventional planar heating element
  • Electric rice cooker includes a ring-shaped case 150 and a planar heating element 200 is fixed to the outer surface of the ring-shaped case 150 is installed on the inner upper portion of the base 100 for heating the inner pot.
  • Electric rice cooker of the present invention is hinged to the rice cooker body and the rice cooker body includes a lid for opening and closing the top.
  • a base 100 for heating the inner pot Inside the cooker body is installed a base 100 for heating the inner pot.
  • the ring-shaped case 150 is installed at an inner upper portion of the base 100.
  • Electric rice cookers are well known in the art, including the above-described prior art, Korean Patent Publication No. 2002-0067848, Korean Patent Registration No. 0997758, and the like.
  • the base 100 has an open top and has a substantially semi-circular shape.
  • the base 100 is installed inside the cooker body, and the inner pot (not shown) may be detachably disposed inside the base 100.
  • the coil 110 is disposed along the outer circumference of the base 100 and the bottom of the base 100 to heat the base 100, thereby heating the inner pot.
  • the stepped portion 120 is formed on the inner surface of the base 100.
  • the ring-shaped case 150 is fitted to the inner upper part of the base 100 and is mounted on the upper end of the step 120.
  • the ring-shaped case 150 and the base 100 may be integrally formed.
  • the ring-shaped case 150 is formed in a circular ring shape with a center penetrating up and down.
  • circular protrusions 151 protruding outward and hollow are respectively formed on the upper outer circumference and the lower outer circumference of the ring-shaped case 150.
  • the circular protrusion 151 located at the bottom of the ring-shaped case 150 is mounted on the stepped portion 120.
  • planar heating element 200 of the present invention is applicable to electric pressure cookers and other electric rice cookers.
  • planar heating element 200 fixed to the outer circumferential surface of the ring-shaped case 150 will be described in detail.
  • planar heating element 200 is fixed in contact with an outer surface of the ring-shaped case 150.
  • one surface of the planar heating element 200 is fixed to the outer surface of the ring-shaped case 150 by a double-sided tape or the like.
  • planar heating element 200 for an electric rice cooker of the present invention as shown in FIG.
  • the planar heating element 200 may be uniformly transfer heat to the outer peripheral surface of the ring-shaped case 150 as it is disposed along the outer peripheral surface of the ring-shaped case 150.
  • the wire connection terminal 270 is fixed to the end of the (+) wire 240 and the (-) wire 241 is inserted.
  • the planar heating element 200 includes a first film layer 206 adjacent to the inner pot and a second film layer 208 disposed outside from the inner pot than the first film layer 206.
  • the resistance heating element pattern 210 is printed on the first film layer 206.
  • the resistance heating element pattern 210 may be a single element metal thin film such as Fe, Al, Cu, or an alloy thin film such as iron-based (Fe-X), iron-based (Fe-Cr), or FeCrAl, but is not limited thereto.
  • the resistance heating element pattern 210 is disposed along the longitudinal direction of the planar heating element body 201 in one direction, and is bent at the edge of the planar heating element body 201, and is disposed in the opposite direction in one direction, and then again the resistance heating element ( It is arranged having a pattern in a form arranged in one direction at the corner of the 210.
  • the zigzag pattern is arranged along the longitudinal direction of the planar heating element body 201.
  • the resistance heating element patterns 210 are configured in one and arranged in a zigzag pattern, but according to the exemplary embodiment, the resistance heating element patterns 210 may be configured in plural and may be connected in series or in parallel with each other. The number of heating element patterns 210 and the direction of the patterns may vary according to embodiments.
  • the heating process of the resistance heating element pattern 210 is as follows.
  • the wire connection terminal 270 is fixed to the end of the (+) wire 240 and the (-) wire 241 is inserted.
  • planar heating element body 201 After fixing the planar heating element body 201 around the outer circumferential surface of the ring-shaped case 150, electric power is facilitated by plugging the wire connection terminal 270 to which the (+) wire 240 and the (-) wire 241 are connected to the power supply. It is possible to energize the planar heating element body 201.
  • the second film layer 208 constituting the planar heating element 200 serves to insulate the resistance heating element pattern 210 which is a heating element, and has a thin film form.
  • the first film layer 206 also has the form of a thin film, and serves to insulate the resistance heating element pattern 210 which is a heating element.
  • both the first film layer 206 and the second film layer 208 are thin films.
  • the resistance heating element pattern 210 includes a plurality of first patterns 211 and a plurality of planar heating element bodies 201 disposed along the length direction of the planar heating element body 201.
  • the second pattern 212 is included.
  • the first pattern 211 is connected to each other.
  • the second pattern 212 and the first pattern 211 have a pattern of zigzag and are connected to each other.
  • the end portion 222 of the second pattern and the end portion 221 of the first pattern are connected to each other to have a zigzag pattern.
  • a round 225 is formed at the connection portion between the end portion 222 of the second pattern and the end portion 221 of the first pattern.
  • the role of the round 225 formed at the connection portion between the end portion 222 of the second pattern and the end portion 221 of the first pattern is as follows.
  • heat generated at the end portion 222 of the second pattern and the end portion 221 of the first pattern overlaps, and excessive heat is generated at the connection portion between the end portion 222 of the second pattern and the end portion 221 of the first pattern. Will occur.
  • planar heating element (200) This will seriously affect the durability of the planar heating element (200).
  • the end portion 222 of the second pattern and the first pattern Overlap of heat generated at the end portion 221 may be prevented.
  • a distance between one first pattern 211a and another first pattern 211b adjacent to the first pattern 211a is referred to as d1.
  • the distance between one second pattern 222a and another second pattern 222b adjacent to the second pattern 222a is referred to as d2.
  • Another product adjacent to the second pattern 222a and the second pattern 222a than d1 which is a distance between the first pattern 211a and the other first pattern 211b adjacent to the first pattern 211a.
  • D2 which is the distance between the two patterns 222b, is large.
  • one second pattern 222a and the second pattern 222a may be smaller than d1, which is a distance between the first pattern 211a and the other first pattern 211b adjacent to the first pattern 211a.
  • the distance d2 of another adjacent second pattern 222b is formed to be at least 2.3 times larger.
  • the resistance heating element pattern 210 includes a plurality of first patterns 211 disposed along the length direction of the planar heating element body 201 and a plurality of second patterns disposed along the width direction of the planar heating element body 201. Pattern 212.
  • the second second pattern 222a is adjacent to the second pattern 222a than the distance d1 of the first pattern 211a and the other first pattern 211b adjacent to the first pattern 211a.
  • Increasing the distance d2 of the pattern 222b means that the gap between the patterns arranged in the width direction is larger than the gap between the patterns arranged in the longitudinal direction.
  • step 150 ring-shaped case
  • planar heating element body 206 first film layer
  • second film layer 210 resistance heating element pattern

Abstract

La présente invention concerne un cuiseur de riz électrique permettant d'améliorer la durabilité d'un élément chauffant de type superficiel en empêchant la concentration de chaleur locale sur l'élément chauffant de type superficiel.
PCT/KR2016/001678 2015-12-16 2016-02-19 Cuiseur de riz électrique WO2017104892A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201690001451.XU CN209219933U (zh) 2015-12-16 2016-02-19 电饭锅

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150179985A KR102234898B1 (ko) 2015-12-16 2015-12-16 전기밥솥
KR10-2015-0179985 2015-12-16

Publications (1)

Publication Number Publication Date
WO2017104892A1 true WO2017104892A1 (fr) 2017-06-22

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Application Number Title Priority Date Filing Date
PCT/KR2016/001678 WO2017104892A1 (fr) 2015-12-16 2016-02-19 Cuiseur de riz électrique

Country Status (3)

Country Link
KR (1) KR102234898B1 (fr)
CN (1) CN209219933U (fr)
WO (1) WO2017104892A1 (fr)

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US10390656B2 (en) 2017-08-09 2019-08-27 Sharkninja Operating Llc Cooking device and components thereof
USD873602S1 (en) 2018-08-09 2020-01-28 Sharkninja Operating Llc Lid part of a food preparation device
USD874211S1 (en) 2018-08-09 2020-02-04 Sharkninja Operating Llc Food preparation device and parts thereof
USD903414S1 (en) 2018-08-09 2020-12-01 Sharkninja Operating Llc Cooking basket
USD914436S1 (en) 2018-06-19 2021-03-30 Sharkninja Operating Llc Air diffuser with food preparation pot
US11033146B2 (en) 2019-02-25 2021-06-15 Sharkninja Operating Llc Cooking device and components thereof
USD922126S1 (en) 2019-06-06 2021-06-15 Sharkninja Operating Llc User interface for a food preparation device
US11134808B2 (en) 2020-03-30 2021-10-05 Sharkninja Operating Llc Cooking device and components thereof
USD932833S1 (en) 2018-08-09 2021-10-12 Sharkninja Operating Llc Reversible cooking rack
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Also Published As

Publication number Publication date
CN209219933U (zh) 2019-08-09
KR20170071837A (ko) 2017-06-26
KR102234898B1 (ko) 2021-04-01

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