CN110575077A - Lid and cooking utensil - Google Patents
Lid and cooking utensil Download PDFInfo
- Publication number
- CN110575077A CN110575077A CN201810597627.8A CN201810597627A CN110575077A CN 110575077 A CN110575077 A CN 110575077A CN 201810597627 A CN201810597627 A CN 201810597627A CN 110575077 A CN110575077 A CN 110575077A
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- CN
- China
- Prior art keywords
- cover
- heating element
- infrared
- infrared heating
- cooking
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 61
- 238000010438 heat treatment Methods 0.000 claims abstract description 104
- 235000013305 food Nutrition 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 description 12
- JARKCYVAAOWBJS-UHFFFAOYSA-N hexanal Chemical compound CCCCCC=O JARKCYVAAOWBJS-UHFFFAOYSA-N 0.000 description 12
- GYHFUZHODSMOHU-UHFFFAOYSA-N nonanal Chemical compound CCCCCCCCC=O GYHFUZHODSMOHU-UHFFFAOYSA-N 0.000 description 12
- 125000006850 spacer group Chemical group 0.000 description 12
- 241000209094 Oryza Species 0.000 description 11
- 235000007164 Oryza sativa Nutrition 0.000 description 11
- 235000009566 rice Nutrition 0.000 description 11
- 239000003205 fragrance Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000012212 insulator Substances 0.000 description 7
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 5
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003779 heat-resistant material Substances 0.000 description 3
- -1 Polybutylene terephthalate Polymers 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000001819 mass spectrum Methods 0.000 description 2
- IJXHLVMUNBOGRR-UHFFFAOYSA-N methyl nonanoate Chemical compound CCCCCCCCC(=O)OC IJXHLVMUNBOGRR-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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
-
- 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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/06—Lids or covers for cooking-vessels
-
- 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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
Abstract
The invention provides a cover body and a cooking appliance. The cover body is arranged on the cooker body of the cooking appliance in an openable and closable manner. The cover body comprises an infrared heating element. The carbon content of the infrared heating element is greater than or equal to 80%. The main wavelength of the infrared ray is 1.5-25 μm. The infrared heating element used in the cover body of the cooking utensil can improve the heat utilization efficiency and excite the aroma of food.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a cover body and a cooking appliance.
Background
Known cooking appliances, such as electric cookers, electric pressure cookers, etc., generally have a function of cooking rice. However, known cooking appliances generally radiate heat to a heated space through a heating wire or an induction heating device. On the one hand, the heat utilization rate is low; on the other hand, the cooked rice is not sufficiently rich in flavor due to the frequency spectrum.
Therefore, there is a need for a cover and a cooking utensil to at least partially solve the problems of the prior art.
disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
According to one aspect of the present invention, a cover is provided. The cover body is arranged on the cooker body of the cooking appliance in an openable and closable manner. The cover body comprises an infrared heating element. The carbon content of the infrared heating element is greater than or equal to 80%. The main wavelength of the infrared rays emitted by the infrared heating element is 1.5-25 mu m.
When the cover body is used for a cooking utensil, the infrared heating element which directly heats or indirectly heats and contains carbon more than or equal to 80% in the cover body radiates infrared rays with the main wavelength of 1.5-25 mu m to the cavity space, and the heat utilization efficiency is high. The infrared ray of infrared heating element to the cavity space radiation of food storage space top can heat surface layer food effectively, make food be heated evenly, can arouse the fragrance of food, makes food fragrance overflow after culinary art in-process and culinary art process. After cooking, the effective aroma components in the detected aroma substances mainly comprise aldehydes, furan, esters and the like, and the contents of hexanal and nonanal in the flavor substances are the highest. The cooking utensil with the cover body provided by the invention has the advantages that the hexanal content is 37% higher, the nonanal content is 11% higher and the rice fragrance is richer than that of a cooking utensil with a common cover body as for fragrance components.
Optionally, the carbon content of the infrared heating element is greater than or equal to 90%, and/or the main wavelength of the infrared ray is 5 μm to 15 μm.
Optionally, the infrared heating element is a direct heating element.
Optionally, the cover includes a reflector disposed above the infrared heating element.
Optionally, the reflector has a recess with a downward opening, and the infrared heating element is disposed in the recess.
Optionally, the cover body includes an isolation light-transmitting component which is at least partially light-transmitting, and the isolation light-transmitting component is disposed below the infrared heating element.
Optionally, the isolated light transmission assembly comprises a removable inner cover that is at least partially light transmitting.
Optionally, the isolating light transmissive component comprises an isolator that is at least partially light transmissive and is disposed between the removable inner cover and the infrared heat generating element.
Optionally, the cover includes a thermal insulation member disposed above the infrared heating element.
optionally, the infrared heating element is an indirect heating element.
According to another aspect of the present invention, there is provided a cooking appliance. The cooking utensil comprises a pot body and a cover body. The cover body is arranged on the cooker body in an openable and closable manner, when the cover body covers the cooker body, a cooking space is formed between the cover body and the cooker body, and the cooking space comprises a food storage space and a cavity space above the food storage space. The cover body is any one of the cover bodies. The infrared heating element radiates infrared rays to the cavity space.
the cooking utensil according to the present invention radiates infrared rays having a main wavelength of 1.5 to 25 μm (preferably, 5 to 15 μm) to a cavity space through a direct-heating or indirect-heating infrared heating element having a carbon content of 80% or more (preferably, 90% or more) provided in a lid body, and thus has high heat utilization efficiency. The infrared ray of infrared heating element to the cavity space radiation of food storage space top can heat surface layer food effectively, make food be heated evenly, can arouse the fragrance of food, makes food fragrance overflow after culinary art in-process and culinary art process. After cooking, the effective aroma components in the detected aroma substances mainly comprise aldehydes, furan, esters and the like, and the contents of hexanal and nonanal in the flavor substances are the highest. The cooking utensil provided by the invention has the advantages that the content of the aroma components is 37% higher than that of hexanal, the content of nonanal is 11% higher than that of a common cooking utensil, and the aroma of rice is stronger.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,
Fig. 1 is a schematic cross-sectional view of a cooking appliance according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a cover of the cooking appliance shown in FIG. 1;
FIG. 3 is an exploded perspective view of the lid of the cooking appliance shown in FIG. 1;
FIG. 4 is another exploded perspective view of the lid of the cooking appliance shown in FIG. 1, showing the inner liner, insulation, reflector, and infrared heating element;
Fig. 5 is a schematic cross-sectional view of a cooking appliance according to a second embodiment of the present invention;
Fig. 6 is a partial enlarged view at a shown in fig. 5; and
Fig. 7 is an exploded perspective view of the cover of the cooking appliance shown in fig. 5.
Detailed Description
in the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, for purposes of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to the detailed description and should not be construed as limited to the embodiments set forth herein.
The invention provides a cooking utensil and a cover body thereof. The cooking appliance may be an electric rice cooker, an electric pressure cooker or other electric heating appliance. In addition, the cooking appliance may have other functions such as cooking porridge and cooking soup in addition to the function of cooking rice.
First embodiment
Fig. 1 to 4 show schematic cross-sectional views of a cooking appliance 100 according to a first embodiment of the present invention. As shown in fig. 1, the cooking appliance 100 mainly includes a pot body 110 and a lid 120. The respective components of the cooking appliance 100 will be described in detail below with reference to fig. 1 to 4.
The pot body 110 of the cooking appliance 100 may be in a generally rounded rectangular parallelepiped shape, a generally cylindrical shape, or any other suitable shape. The pot body 110 has a substantially cylindrical shape or any other suitable shape of the inner pot 130 disposed therein. The inner pot 130 can be freely put into or taken out of the inner pot receiving part of the pot body 110 to facilitate the cleaning of the inner pot 130. The inner pot 130 is used to store food to be cooked, such as rice, soup, etc. Typically, the top of the inner pan 130 has a top opening. The user can store food to be cooked in the inner pot 130 through the top opening or take cooked food out of the inner pot 130 through the top opening.
An inner pot heating means (not shown) for heating the inner pot 130 is further provided in the pot body 110. The inner pot heating means may heat the inner pot 130 at the bottom and/or the side of the inner pot 130. The inner pot heating device can be an electric heating tube or an induction heating device such as an electromagnetic coil.
The shape of the lid 120 of the cooking appliance 100 substantially corresponds to the shape of the pot body 110. For example, the cover 120 may have a rounded rectangular parallelepiped shape. The lid 120 is provided at the pot body 110 in an openable and closable manner for covering the entire top of the pot body 110 or at least the top of the inner pot 130 of the pot body 110. Specifically, in the present embodiment, the lid body 120 may be pivotably provided above the pot body 110 between the maximum open position and the closed position by, for example, a hinge.
When the cover 120 is covered on the pot body 110, a cooking space 140 is formed between the cover 120 and the pot body 110 (specifically, the inner pot 130 of the pot body 110). The cooking space 140 includes a food storage space and a cavity space. Specifically, the food storage space refers to a space where food is actually stored. The cavity space is positioned above the food storage space. That is, when the cover 120 is covered on the pot body 110, the cavity space is a space between the upper surface of the food and the cover 120.
The cover 120 is provided therein with an infrared heating element 150. Specifically, in the present embodiment, the cover body 120 includes a liner 121, a face cover 122 disposed on an upper side or an outer side of the liner 121, and an inner cover 123 disposed on a lower side or an inner side of the liner 121. The inner cover 123 is at least partially light transmissive. For example, at least a portion of the inner cover 123 is made of a light-transmitting material (e.g., glass, etc.). The infrared heat generating element 150 is installed between the inner liner 121 and the inner cover 123. More specifically, the infrared heat generating element 150 is mounted to the lower side of the inner liner 121, i.e., the side facing the inner cover 123. It should be noted that directional terms used herein in describing the various components in the cover 120 and their positional relationships, such as "above," "below," "upper side," "lower side," "upward," "downward," "above," "below," etc., are relative to the cover 120 when in the closed position.
The infrared heating element 150 is a heating element containing carbon. The carbon content of the infrared heating element 150 is 80% or more. Preferably, the carbon content of the infrared heating element 150 is greater than or equal to 90%. The term "carbon content" as used herein refers to the mass percentage of carbon element. The infrared heating element 150 is configured to radiate infrared rays toward the cavity space during cooking. The infrared heating element 150 radiates infrared rays of various wavelengths toward the cavity space during the cooking process. Wherein the infrared ray radiated from the infrared heating element 150 has a main wavelength of 1.5 to 25 μm. Preferably, the infrared ray radiated from the infrared heating element 150 has a main wavelength of 5 to 15 μm. The term "main wavelength" as used herein means that infrared rays having a wavelength within this range account for a larger proportion of infrared rays radiated from the infrared heat generating element 150 than infrared rays having a wavelength outside this range. The applicant found that the infrared ray having a main wavelength of 1.5 to 25 μm is radiated to the cavity space by the infrared heating element 150 having a carbon content of 80% or more, and the heat utilization efficiency is high. The infrared ray radiated from the infrared heating element 150 to the cavity space above the food storage space can effectively heat the surface layer food, so that the food is uniformly heated, thereby exciting the aroma of the food.
Specifically, in the present embodiment, the infrared heat generating element 150 is a direct heat generating element. It should be noted that the term "direct heating element" as used herein refers to an element that is capable of converting other forms of energy (e.g., electrical energy) into heat energy. More specifically, as shown in fig. 2, the infrared heating element 150 is a U-shaped carbon-containing element, which is enclosed in a U-shaped quartz glass tube to form a U-shaped infrared electrothermal tube. The infrared electric heating tube may be detachably mounted to the cover 120 (e.g., the inner liner 121 of the cover 120) by, for example, a snap structure. The diameter of the infrared electric heating tube can be 6 mm-20 mm. Preferably, the diameter of the infrared electrothermal tube can be 8 mm-12 mm for convenient installation. Electrodes or conducting wires are arranged at two ends of an infrared heating element 150 in the infrared electric heating tube. The infrared heating element 150 can directly generate heat after being energized to radiate infrared rays to the cavity space. The power of the infrared electric heating tube can be 20W-1000W. Preferably, the power of the infrared electrothermal tube can be 20W-100W. Of course, the shapes of the infrared heating element 150 and the infrared electrothermal tube are not limited to the U-shape. For example, in other embodiments of the present invention not shown, the infrared heating element 150 and/or the infrared electrothermal tube may be in the shape of a ring, pear, semicircle, spiral, candle, etc. In addition, the infrared heating element 150 may also be an electric heating film capable of being directly electrified, such as a carbon fiber electric heating film.
Optionally, a reflector 160 is further disposed in the cover 120, and the reflector 160 is disposed above the infrared heating element 150 to reflect infrared rays radiated upwards by the infrared heating element 150 into the cavity space, so as to increase the radiation amount of the infrared rays. The reflection member 160 may be made of stainless steel or aluminum. The reflecting member 160 may be made of other mirror materials having high reflectivity to infrared rays to further increase the amount of infrared rays radiated.
Specifically, in the present embodiment, as shown in fig. 2 to 4, the reflection member 160 is disposed between the inner liner 121 and the infrared heat generating element 150. That is, the reflecting member 160 is disposed below the inner liner 121 and above the infrared heat generating element 150. The reflecting member 160 has substantially the same shape as the infrared heat generating element 150 and is also U-shaped. The reflecting member 160 has a first recess 163 opened downward, and the infrared heat generating element 150 is disposed in the first recess 163. The cross-section of the first recess 163 may be parabolic, trapezoidal with an unsealed lower end, or any other suitable shape. One or more snaps 161 are provided at the lower side of the reflection member 160, and the infrared heat generating element 150 is detachably mounted to the reflection member 160 through the snaps 161. The upper side of the reflection member 160 is provided with one or more catching legs 162. The reflector 160 is mounted to the liner 121 by a clip 162.
Optionally, a heat insulation member 170 is further disposed in the cover 120, and the heat insulation member 170 is disposed above the infrared heating element 150 to prevent heat of the infrared heating element 150 from being radiated to other portions of the cover 120 that are not resistant to high temperature, such as a printed-circuit board (PCB). The heat insulator 170 may be made of high temperature resistant plastic such as bakelite, PPS (polyphenylene sulfide) plastic, PBT (Polybutylene terephthalate) plastic, PET (Polyethylene terephthalate) plastic. The heat insulating member 170 may be made of high temperature resistant heat insulating cotton or mica board.
Specifically, in the present embodiment, as shown in fig. 2 to 4, the heat insulator 170 is provided between the liner 121 and the infrared heating element 150. More specifically, the thermal insulator 170 is disposed between the inner liner 121 and the reflective member 160. That is, the heat insulator 170 is disposed below the inner liner 121 and above the reflecting member 160 and the infrared heating element 150. The heat insulator 170 has substantially the same shape as the infrared heating element 150 and the reflector 160, and is also U-shaped. The heat insulator 170 has a second recess 174 that opens downward, and the infrared heat generating element 150 and the reflector 160 are at least partially disposed in the second recess 174. The cross-section of the second recess 174 may be parabolic, trapezoidal with an unsealed lower end, or any other suitable shape. The heat insulator 170 may be provided with one or more through holes 175 corresponding to the number of the locking legs 162 of the reflection member 160. The locking legs 162 of the reflecting member 160 pass through the through holes 175 of the heat insulating member 170 and the through holes of the inner liner 121 in this order to detachably mount the heat insulating member 170, the reflecting member 160, and the infrared heating element 150 on the lower side of the inner liner 121.
Optionally, the cover 120 further comprises an isolated light-transmissive component that is at least partially light-transmissive. The isolated light-transmitting component is disposed below the infrared heating element 150. On one hand, the isolation transparent component can isolate the infrared heating element 150, so as to avoid the danger of scalding or electric shock caused by the user directly touching the infrared heating element 150 when the cover body 120 is opened. On the other hand, the isolated light-transmitting component can transmit the infrared rays generated by the infrared heating element 150 to radiate to the cavity space.
Specifically, in the present embodiment, as shown in fig. 3, the isolated light-transmitting component includes an inner cover 123. The inner cover 123 is at least partially light transmissive. The inner lid 123 is a removable inner lid. In particular, in the present embodiment, the inner lid 123 may be detachably mounted to the liner 121 by means such as a snap to facilitate removal of the inner lid 123 for cleaning. The inner lid 123 may be at least partially made of a light-transmitting material such as transparent tempered glass, silicon glass, germanium glass, light-transmitting PC (Polycarbonate), and the like.
In addition, the isolated optically transparent component further includes an isolator 180. The spacer 180 is disposed between the inner cover 123 and the infrared heat generating element 150. That is, the spacer 180 is disposed above the inner cover 123 and below the infrared heat generating element 150. Specifically, the spacer 180 is mounted to the inner liner 121 below the infrared heat generating element 150. More specifically, in the present embodiment, as shown in fig. 3, one or more catching legs 181 are provided on the upper side of the spacer 180. Spacer 180 is mounted to liner 121 by one or more catches 181.
The spacer 180 is at least partially light transmissive. Alternatively, the light-transmitting area of the spacer 180 completely corresponds to the light-transmitting areas of the infrared heat generating element 150 and the inner cover 123, so that the infrared rays radiated from the infrared heat generating element 150 are transmitted through the spacer 180 and the inner cover 123 as much as possible, improving heat utilization efficiency. The spacer 180 may be a plate-shaped member made of a non-light-transmitting material (e.g., a metal material such as aluminum, stainless steel, etc.) and provided thereon with a mesh 182 to allow infrared rays to pass therethrough. Alternatively, the mesh 182 of the partition 180 is positioned to correspond to the infrared heat generating element 150. The mesh 182 may be a circular mesh, a diamond-shaped mesh, a great wall mesh, or any other suitable shape of mesh.
On one hand, the spacer 180 enables infrared rays radiated from the infrared heating element 150 to pass through the spacer 180; on the other hand, when the user detaches the inner cap 123 according to actual needs, the spacer 180 may prevent the user from touching the infrared heating element 150 to cause scalding or electric shock.
It should be noted that although in the present embodiment, the isolated light transmission component is shown as including the isolation member 180 and the removable inner cover 123, the isolated light transmission component may include only a removable inner cover or a non-removable inner cover that is at least partially light transmitting.
Second embodiment
Fig. 5 to 7 show a cooking appliance 200 according to a second embodiment of the present invention. The cooking appliance 200 has a structure substantially the same as the cooking appliance 100 except that the infrared heat generating element 250 provided in the cover 220 of the cooking appliance 200 is an indirect heat generating element. Therefore, for components that are identical in structure and function to the components of the first embodiment, the same reference numerals are used in the second embodiment, and will not be described in detail again for the sake of brevity. It should be noted that the term "indirect heat generating element" herein refers to an element that does not directly generate heat by itself, but receives heat generated by other heat generating components.
As shown in fig. 5 to 7, an infrared heating element 250 is provided in the cover 220. In this embodiment, the infrared heating element 250 is a U-shaped carbon block. The carbon content of the infrared heating element 250 is greater than or equal to 80%. Preferably, the carbon content of the infrared heating element 250 is greater than or equal to 90%.
As shown in fig. 5 to 7, an electric heating plate 270 is further disposed in the cover 220 above the infrared heating element 250. The infrared heating element 250 and the hot plate 270 are both mounted to the liner 121 below the liner 121 of the cover 220. The hot plate 270 can directly convert electric energy into heat energy after being powered on, and the generated heat can heat the infrared heating element 250 to heat the infrared heating element 250. The power of the electric heating plate 270 may be 50-1000W. Preferably, the power of the hot plate 270 may be 50 to 100W. Preferably, the shape of the hot plate 270 is adapted to the shape of the infrared heating element 250, and is also U-shaped. The shape of the hot plate 270 is adapted to the infrared heating element 250, and the infrared heating element 250 can be uniformly heated.
The infrared heating element 250 can generate infrared rays to radiate the infrared rays to the cavity space after receiving the heat of the hot plate 270. The infrared heating element 250 can radiate infrared rays of various wavelengths toward the cavity space. Wherein the infrared ray radiated from the infrared heating element 250 has a main wavelength of 1.5 to 25 μm. Preferably, the infrared ray radiated from the infrared heating element 250 has a main wavelength of 5 to 15 μm. The applicant found that the infrared heating element 250 containing more than or equal to 80% (preferably, more than or equal to 90%) of carbon absorbs the heat generated by the electric heating plate 270, and radiates infrared rays having a main wavelength of 1.5 to 25 μm (preferably, 5 to 15 μm) to the cavity space, so that the heat utilization efficiency is high. The infrared ray radiated from the infrared heating element 250 to the cavity space above the food storage space can effectively heat the surface layer food, so that the food is uniformly heated, thereby exciting the aroma of the food.
Specifically, as shown in fig. 6 and 7, the electric hot tray 270 includes an electric hot tray body 271 and a heating wire 272. The electric hot plate body 271 is provided with a recess 274 opened downward. The infrared heating element 250 is at least partially disposed in the recess 274. The lower side of the electric hot plate body 271 is provided with a mounting groove 273 opened downward. The heating wire 272 is disposed in the mounting groove 273. The heating wire 272 has electrodes or wires provided at both ends thereof to convert electric energy into heat energy after being electrified to directly generate heat. Alternatively, the mounting groove 273 is configured to be capable of penetrating from one end of the electric hot tray body 271 to the other end of the electric hot tray body 271, so that the heating wire 272 can be wound from one end of the electric hot tray body 271 to the other end of the electric hot tray body 271. In an embodiment not shown, the mounting groove may be configured in a closed shape. Both ends of the heating wire may be disposed at one position of the mounting groove. Of course, the shape of the infrared heat generating element 250 is not limited to the U-shape. For example, in an embodiment not shown, the infrared heating element 250 may be shaped in any suitable shape such as a saddle, a ring, a semicircle, etc.
the hot plate 270 is made of a heat-resistant material. The heat resistant material may be a ceramic or other suitable non-metallic heat resistant material. More preferably, the electric heating plate 270 may be made of a heat-resistant and heat-insulating material to prevent heat of the infrared heating element 250 from being radiated to other heat-labile portions of the cover 220.
Optionally, a reflector 160 is disposed between the hot plate 270 and the infrared heating element 250. In this case, the reflector 160 has good thermal conductivity in addition to good reflectance. The reflecting member 160 has a structure and function similar to those of the reflecting member 160 of the first embodiment. The hot plate 270 is provided with a through hole 275 through which the engaging leg 162 of the reflecting member 160 passes.
It should be noted that although the infrared heating element 250 radiates infrared rays by absorbing heat generated by the heating wire 272 in the hot plate 270 in the present embodiment, the infrared heating element also radiates infrared rays by absorbing heat induced by the electromagnetic coil in other embodiments not shown in the present invention.
In summary, the cooking appliance according to the present invention radiates infrared rays having a main wavelength of 1.5 to 25 μm (preferably, 5 to 15 μm) to the cavity space through the direct-heat-generating or indirect-heat-generating infrared heating element having a carbon content of 80% or more (preferably, 90% or more) provided in the cover, and thus has high heat utilization efficiency. Infrared heating element can heat surface layer food, make food be heated evenly effectively to the infrared ray of the cavity space radiation of food storage space top, can arouse the fragrance of food, makes the food of cooking in the culinary art in and the fragrance overflow after the culinary art process.
the applicant carried out a comparative test using the cooking appliance provided by the present invention with a conventional cooking appliance. Specifically, the whole pot of rice is stirred uniformly and scattered after cooking is finished, a sample is taken from the middle part in the pot, the cooked rice is accurately weighed, and fragrance collection and test are carried out. And (3) analyzing by a gas chromatography-mass spectrometry technology to obtain a total ion current chromatogram of the volatile substances of the cooked rice, searching and analyzing the mass spectrum of each component by a computer library (NIST11), and performing artificial spectrogram analysis by combining the mass spectrum number of related documents to determine the chemical structure of the fragrant substances.
In the test, the quantification of the aroma components was a semi-quantitative result. The area percentage of each component is obtained by an area normalization method, and the concentration of each component in the sample is calculated according to the concentration of the content of the internal standard substance 1, 2-dichlorobenzene in the sample.
Wherein, the calculation formula is:
Wherein, Cirepresents the concentration of the volatile component in the sample (. mu.g/g), AiRepresents the area percentage of the volatile component content, AisRepresents the area percent of 1, 2-dichlorobenzene, CisThe concentration of the internal standard methyl nonanoate in the sample (. mu.g/g) is indicated.
The results show that the effective aroma components in the detected aroma substances mainly comprise aldehydes, furan, esters and the like, and the contents of hexanal and nonanal in the flavor substances are the highest. As for aroma components, the content of hexanal is 37 percent higher and the content of nonanal is 11 percent higher than that of the common cooking utensil by using the cooking utensil provided by the invention. The rice has rich fragrance.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (11)
1. A lid (120/220) for being openably and closably disposed on a pot body (110) of a cooking appliance (100/200), the lid (120/220) comprising:
An infrared heating element (150/250), wherein the carbon content of the infrared heating element (150/250) is greater than or equal to 80%, and the main wavelength of infrared rays emitted by the infrared heating element is 1.5-25 μm.
2. The cover (120/220) according to claim 1, wherein the infrared heating element (150/250) has a carbon content of 90% or more and/or the infrared light has a dominant wavelength of 5 to 15 μm.
3. The cover (120) according to claim 1 or 2, wherein the infrared heating element (150) is a direct heating element.
4. a cover (120) according to claim 3, wherein the cover (120) comprises a reflective member (160), the reflective member (160) being arranged above the infrared heat generating element (150).
5. The cover (120) according to claim 4, wherein the reflecting member (160) has a recess (163) opened downward, and the infrared heating element (150) is disposed in the recess (163).
6. A cover (120) according to claim 3, wherein the cover (120) comprises an at least partially light transmissive insulating light transmissive component disposed below the infrared heat generating element (150).
7. The cover (120) of claim 6, wherein said isolated light transmission component comprises a removable inner cover (123), said removable inner cover (123) being at least partially light transmitting.
8. The cover (120) of claim 7, wherein said insulating light transmissive assembly comprises an insulating member (180), said insulating member (180) being at least partially light transmissive and disposed between said removable inner cover (123) and said infrared heat generating element (150).
9. A cover (120) according to claim 3, wherein the cover (120) comprises a thermal insulation (170), the thermal insulation (170) being arranged above the infrared heating element (150).
10. The cover (220) according to claim 1 or 2, wherein the infrared heating element (250) is an indirect heating element.
11. A cooking appliance (100), characterized in that the cooking appliance (100) comprises:
a pot body (110); and
A cover (120/220), the cover (120) is openably and closably disposed on the pot body, when the cover (120) is closed on the pot body, a cooking space is formed between the cover (120) and the pot body, the cooking space includes a food storage space and a cavity space above the food storage space, wherein the cover (120/220) is the cover (120/220) of any one of claims 1-10, and the infrared heating element radiates infrared rays to the cavity space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597627.8A CN110575077A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597627.8A CN110575077A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
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| CN110575077A true CN110575077A (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810597627.8A Pending CN110575077A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
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| US11134808B2 (en) | 2020-03-30 | 2021-10-05 | Sharkninja Operating Llc | Cooking device and components thereof |
| US11627834B2 (en) | 2017-08-09 | 2023-04-18 | Sharkninja Operating Llc | Cooking system for cooking food |
| US11751710B2 (en) | 2019-02-25 | 2023-09-12 | Sharkninja Operating Llc | Guard for cooking system |
| EP4125511A4 (en) * | 2020-03-31 | 2023-11-01 | Zhejiang Shaoxing Supor Domestic Electrical Appliance Co., Ltd. | A baking lid and a cooking utensil |
| US11969118B2 (en) | 2022-04-25 | 2024-04-30 | Sharkninja Operating Llc | Cooking device and components thereof |
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