CN110575063A - Lid and cooking utensil - Google Patents
Lid and cooking utensil Download PDFInfo
- Publication number
- CN110575063A CN110575063A CN201810595968.1A CN201810595968A CN110575063A CN 110575063 A CN110575063 A CN 110575063A CN 201810595968 A CN201810595968 A CN 201810595968A CN 110575063 A CN110575063 A CN 110575063A
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- China
- Prior art keywords
- cover
- heating element
- infrared
- lid
- carbon fiber
- 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
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- 238000010411 cooking Methods 0.000 title claims abstract description 63
- 238000010438 heat treatment Methods 0.000 claims abstract description 81
- 235000013305 food Nutrition 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 38
- 239000004917 carbon fiber Substances 0.000 claims description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 38
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 21
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 21
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 22
- 235000009566 rice Nutrition 0.000 abstract description 22
- 239000003205 fragrance Substances 0.000 abstract description 4
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 21
- 238000005485 electric heating Methods 0.000 description 19
- 239000000126 substance Substances 0.000 description 13
- 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
- 239000012212 insulator Substances 0.000 description 7
- 238000000034 method Methods 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
- 239000000463 material Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- -1 Polybutylene terephthalate Polymers 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000001819 mass spectrum Methods 0.000 description 2
- 239000007769 metal material Substances 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
- 229920000515 polycarbonate Polymers 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
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 235000014347 soups Nutrition 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000014443 Pyrus communis Nutrition 0.000 description 1
- 206010053615 Thermal burn Diseases 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
- 239000011248 coating agent 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
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 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
- 235000021395 porridge Nutrition 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000005507 spraying Methods 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
- A47J27/004—Cooking-vessels with integral electrical 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
- 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
- A47J36/2483—Warming devices with electrical heating means
- A47J36/2488—Warming devices with electrical heating means having infrared radiating elements
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 infrared heating element is a carbon-containing direct heating element. 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 appliance, infrared rays radiated by the carbon-containing direct heating element to the cavity space above the food storage space can effectively heat surface foods, so that the foods are uniformly heated, and the fragrance in rice can be increased.
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 rich enough in flavor.
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 a first 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 infrared heating element is a carbon-containing direct heating element. 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 carbon-containing direct heating element in the cover body radiates infrared rays of 1.5-25 mu m to the cavity space, and the heat utilization efficiency is high. The infrared rays radiated by the carbon-containing direct heating element to the cavity space above the food storage space can effectively heat surface layer food, so that the food is uniformly heated, main volatile components in the rice can overflow, the aroma generation speed and the aroma substance concentration in the rice can be increased, and the aroma of the rice can overflow in the cooking process and after the cooking process is finished. Wherein, 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 cooking utensil with the cover body provided by the invention has the advantages that the hexanal content is higher than 37%, the nonanal content is higher than 11%, and the rice aroma is richer than that of a cooking utensil with a common cover body.
Optionally, the infrared light has a main wavelength of 5 μm to 15 μm. The carbon-containing infrared heating element radiates infrared rays with the main wavelength of 5-15 microns to the cavity space, so that the heat utilization efficiency is further improved, the food is heated more uniformly, and the fragrance in the rice can be increased.
Optionally, the infrared heating element is a carbon fiber electrothermal tube or a silicon carbide electrothermal tube.
Optionally, the power of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 20W-1000W. When the power of the carbon fiber electric heating tube or the silicon carbide electric heating tube is in the range, the heat utilization rate is high, and the temperature of the cavity space is conveniently controlled to be 100-150 ℃.
Optionally, the power of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 20W-100W. When the power of the carbon fiber electric heating tube or the silicon carbide electric heating tube is in the range, the heat utilization rate is high, and the temperature of the cavity space is conveniently controlled to be 100-150 ℃.
Optionally, the diameter of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 6 mm-20 mm. The diameter of the carbon fiber electric heating tube or the silicon carbide electric heating tube is in the range, so that the carbon fiber electric heating tube or the silicon carbide electric heating tube is convenient to install.
optionally, the diameter of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 8 mm-12 mm. The diameter of the carbon fiber electric heating tube or the silicon carbide electric heating tube is in the range, so that the carbon fiber electric heating tube or the silicon carbide electric heating tube is convenient to install.
Optionally, the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is one of U-shaped, candle-shaped, annular, pear-shaped, semicircular and spiral.
Optionally, the infrared heating element is a carbon fiber electrothermal film.
Optionally, the cover includes a reflector disposed above the infrared heating element. The infrared ray that the reflector can be radiated infrared heating element orientation top reflects the cavity space in, improves the radiant quantity of infrared ray.
Optionally, the cover includes a thermal insulation member disposed above the infrared heating element. The heat insulating piece can prevent the heat radiation of infrared heating element to other not high temperature resistant parts of lid.
Optionally, the cover includes an inner cover that is a removable inner cover and is at least partially light transmissive.
Optionally, the cover includes a spacer that is at least partially light transmissive and is disposed between the inner cover and the infrared heat generating element. When the user dismantles the inner cup according to actual need, the isolator can avoid the user to touch infrared heating element and take place scald or the danger of electrocuteeing.
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, the cooking space comprises a food storage space and a cavity space above the food storage space, and the cover body is any one of the cover bodies. The infrared heating element radiates infrared rays to the cavity space.
According to the cooking utensil, the carbon-containing direct heating element in the cover body radiates infrared rays of 1.5-25 microns to the cavity space, and the heat utilization efficiency is high. The infrared rays radiated by the carbon-containing direct heating element to the cavity space above the food storage space can effectively heat surface layer food, so that the food is uniformly heated, main volatile components in the rice can overflow, the aroma generation speed and the aroma substance concentration in the rice can be increased, and the aroma of the rice can overflow in the cooking process and after the cooking process is finished. Wherein, 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 in the cooking utensil provided by the invention is higher than 37%, the content of nonanal in the cooking utensil is higher than 11%, 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 an 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 a schematic cross-sectional view of a cooking appliance according to another embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A; and
Fig. 6 is an exploded perspective view illustrating a partial structure of a cover of the cooking appliance shown in fig. 4.
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 3 show schematic views of a cooking appliance according to a first embodiment of the present invention. The cooking appliance 100 mainly includes a pot body 110 and a lid 120. The respective components of the cooking appliance 100 according to the first embodiment of the present invention will be described in detail with reference to fig. 1 to 3.
As shown in fig. 1, the pot body 110 of the cooking appliance 100 may have 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.
as shown in fig. 1 and 2, the shape of the cover 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.
As shown in fig. 2 and 3, an infrared heating element 150 is provided in the cover 120. Specifically, in the present embodiment, referring back to fig. 1, the cover 120 includes a liner 121. The upper or outer side of the liner is provided with a cover 122. The underside or inner side of the liner is provided with an inner cover 123. 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. 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 direct heating element containing carbon. It should be noted that, in this context, a "direct heating element" refers to an element that is capable of converting other forms of energy (e.g., electrical energy) into heat energy. Preferably, the carbon content of the infrared heating element 150 is greater than or equal to 80%. 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 heat utilization efficiency is high by radiating infrared rays having a main wavelength of 1.5 to 25 μm (preferably, a main wavelength of 5 to 15 μm) to the cavity space through the carbon-containing infrared heating element 150. 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, as shown in fig. 3, the infrared heating element 150 is a U-shaped carbon fiber element, which is encapsulated in U-shaped quartz glass to form a U-shaped carbon fiber electrothermal tube. The carbon fiber electrical 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-fit structure. The diameter of the carbon fiber electric heating tube can be 6 mm-20 mm. Preferably, the diameter of the carbon fiber electric heating tube can be 8 mm-12 mm for convenient installation. The two ends of the infrared heating element 150 (i.e. carbon fiber element) in the carbon fiber electrothermal tube are provided with electrodes or wires. The infrared heating element 150 can directly generate heat after being energized to radiate infrared rays to the cavity space. The power of the carbon fiber electric heating tube can be 20W-1000W. Preferably, the power of the carbon fiber electrothermal tube can be 20W-100W. The applicant finds that when the power of the electric heating tube is in the range, the heat utilization rate is high, and the temperature of the cavity space is convenient to control to be 100-150 ℃.
It should be noted that the shapes of the infrared heating element 150 and the carbon fiber electric heating tube are not limited to U-shape. For example, in other embodiments of the invention not shown, the infrared heating element 150 and/or the carbon fiber electrical heating tube may be shaped as a ring, pear, semicircle, spiral, candle, etc.
The infrared heating element 150 may be another carbon-containing element. For example, the infrared heating element 150 may be a silicon carbide element that is encapsulated in quartz glass to form a silicon carbide electrothermal tube. The diameter and power parameters of the silicon carbide electrothermal tube can be similar to those of a carbon fiber electrothermal tube, and are not described again for brevity.
Optionally, as shown in fig. 2 and 3, a reflecting member 160 is further disposed in the cover 120, and the reflecting member 160 is disposed above the infrared heating element 150 to reflect infrared rays radiated upward 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 and 3, 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 reflector 160 is provided with one or more upwardly extending catches 162. The reflector 160 is mounted to the liner 121 by a catch 162, which will be described in detail below.
optionally, as shown in fig. 2 and 3, 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 radiating to other parts 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 heat-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 heat-resistant heat-insulating cotton or mica board. Alternatively, the thermal shield 170 may be made from a variety of materials as described above.
specifically, in the present embodiment, as shown in fig. 2 and 3, 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 is provided with one or more first through holes 175 corresponding to the number of the locking legs 162 of the reflection member 160. The inner liner 121 is provided with one or more second through holes 124 corresponding to the number of the catches 162. The clip 162 of the reflector 160 passes through the first aperture 175 in the thermal shield 170 and the second aperture 124 in the liner 121 to attach the thermal shield 170 and the reflector 160 to the liner 121. Of course, insulation 170 may also be mounted to liner 121 by fasteners such as screws.
Optionally, as shown in fig. 3, the cover 120 further includes an isolated light-transmitting component that is at least partially light-transmitting. 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.
The isolated optically transmissive 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 heating element 150 and the inner cover 123, i.e., the light-transmitting area of the spacer 180 completely overlaps the projection of the infrared heating element 150 in the horizontal plane, so that the infrared rays radiated from the infrared heating element 150 penetrate 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. 4 to 6 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 that of the cooking appliance 100 except that the infrared heating element 250 provided in the cover 220 of the cooking appliance 200 is a carbon fiber electrothermal film. 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.
As shown in fig. 5 and 6, a support 290 is provided in the cover 220. The support 290 is disposed between the inner cover 223 and the inner liner 221. The support member 290 is provided with upwardly extending catches 294 to attach to the inner liner 221 over the catches 294. Of course, the support 290 may also be attached to any suitable component of the cover 220 by any other suitable means (e.g., threaded fasteners, etc.).
The support 290 is at least partially light transmissive. Specifically, in the present embodiment, the support 290 includes a light-transmitting portion 291 and a seat portion 292. The holder portion 292 may be made of a metal material such as stainless steel, aluminum. The above-mentioned locking leg 294 is provided on the seat portion 292. The holder portion 292 is further provided with a through hole 293 adapted to the shape of the light transmission portion 291, and the light transmission portion 291 is fitted in the through hole 293. The light-transmitting portion 291 may be made of a light-transmitting material such as transparent tempered glass, silicon glass, germanium glass, or light-transmitting PC (Polycarbonate). The upper surface of the light-transmitting portion 291 is coated with a carbon fiber electrothermal film by a coating process such as brush coating, spray coating, etc., thereby forming the infrared heating element 250. The carbon fiber electrothermal film is connected with an electrode or a lead 251, so that the carbon fiber electrothermal film can directly generate heat after the electrode or the lead 251 is electrified to radiate infrared rays to the cavity space.
It should be noted that although the carbon fiber electrothermal film is shown attached to the upper surface of the support member 290 in the present embodiment, the carbon fiber electrothermal film may be attached to the lower surface of the support member 290.
In conclusion, the cooking utensil according to the invention radiates infrared rays with the size of 1.5-25 μm to the cavity space through the carbon-containing direct heating element in the cover body, and the heat utilization efficiency is high. The infrared rays radiated by the carbon-containing direct heating element to the cavity space above the food storage space can effectively heat surface layer food, so that the food is uniformly heated, main volatile components in the rice can overflow, the aroma generation speed and the aroma substance concentration in the rice can be increased, and the aroma of the rice can overflow in the cooking process and after the cooking process is finished.
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 (14)
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:
The infrared heating element (150/250), infrared heating element (150/250) is the direct heating element who contains carbon, infrared heating element (150/250) send the infrared main wavelength of 1.5 mu m ~ 25 mu m.
2. The cover (120/220) of claim 1, wherein 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 carbon fiber electrothermal tube or a silicon carbide electrothermal tube.
4. The cover (120) according to claim 3, wherein the power of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 20W-1000W.
5. The cover (120) according to claim 4, wherein the power of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 20W-100W.
6. The cover (120) of claim 3, wherein the diameter of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 6mm to 20 mm.
7. The cover (120) of claim 6, wherein the diameter of the carbon fiber electrothermal tube or the silicon carbide electrothermal tube is 8mm to 12 mm.
8. The cover (120) of claim 3, wherein the carbon fiber electrical heating tube or the silicon carbide electrical heating tube is one of U-shaped, candle-shaped, ring-shaped, pear-shaped, semi-circular, and spiral in shape.
9. The cover (220) according to claim 1 or 2, wherein the infrared heating element (250) is a carbon fiber electrothermal film.
10. Cover (120/220) according to claim 1 or 2, characterized in that the cover (120/220) comprises a reflector (160), which reflector (160) is arranged above the infrared heating element (150/250).
11. Cover (120/220) according to claim 1 or 2, characterized in that the cover (120/220) comprises a thermal insulation (170), the thermal insulation (170) being arranged above the infrared heating element (150/250).
12. the cover (120/220) of claim 1 or 2, wherein the cover (120/220) includes:
An inner cover (123), the inner cover (123) being a detachable inner cover and being at least partially light transmissive.
13. Cover (120/220) according to claim 12, characterized in that the cover (120/220) comprises a spacer (180), the spacer (180) being at least partially light-transmitting and being arranged between the inner cover (123) and the infrared heat element (150/250).
14. A cooking appliance (100/200), characterized in that the cooking appliance (100/200) comprises:
A pot body (110); and
A lid (120/220), lid (120/220) set up openably and closably on the a kind of deep pot body (110), when lid (120/220) lid closes on the a kind of deep pot body (110), lid (120/220) with form cooking space (140) between the a kind of deep pot body (110), cooking space (140) include food parking space and the cavity space above the food parking space, wherein, lid (120/220) is lid (120/220) of any one of claims 1-13, infrared heating element (150/250) to the cavity space radiation infrared ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595968.1A CN110575063A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810595968.1A CN110575063A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
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| CN110575063A true CN110575063A (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810595968.1A Pending CN110575063A (en) | 2018-06-11 | 2018-06-11 | Lid and cooking utensil |
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| KR20170109211A (en) * | 2016-03-18 | 2017-09-28 | 주식회사 더원 | Induction Heating Fabric, Induction Cooking Container Using It, and Manufacturing Method Thereof |
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| CN1160526A (en) * | 1996-03-25 | 1997-10-01 | 三菱电机株式会社 | Rice cooker |
| KR19980066194U (en) * | 1997-05-13 | 1998-12-05 | 박문희 | Lid of electric rice cooker |
| KR19990037133U (en) * | 1999-06-23 | 1999-10-05 | 황만철 | Rice cooker and rice cooker with indirect heating stone cooker and stone cooker |
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