CN209863280U - Cooking utensil - Google Patents
Cooking utensil Download PDFInfo
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- CN209863280U CN209863280U CN201822067700.9U CN201822067700U CN209863280U CN 209863280 U CN209863280 U CN 209863280U CN 201822067700 U CN201822067700 U CN 201822067700U CN 209863280 U CN209863280 U CN 209863280U
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Abstract
The utility model provides a cooking utensil. The cooking utensil comprises a pot body and a cover body. An inner pot is arranged in the cooker body. The cover body is arranged on the cooker body in an openable and closable manner, and when the cover body covers the cooker body, a cooking space is formed between the cover body and the inner pot. The cooking space includes a food storage space and a cavity space above the food storage space. The cover body comprises an infrared heating element. The infrared heating element radiates infrared rays to the cavity space. It is composed ofWherein the carbon content of the infrared heating element is more than or equal to 80 percent, the main wavelength of the infrared ray is 1.5 to 25 mu m, and the power density of the infrared radiation at the opening part of the inner pot is 0.06W/cm2～10.19W/cm2. According to the utility model discloses an infrared heating element for in cooking utensil's lid can improve heat utilization efficiency, arouses the fragrance of food.
Description
Technical Field
The utility model relates to a kitchen utensil technical field, more specifically, the utility model relates to a cooking utensil.
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 fragrant due to frequency spectrum reasons, power density reasons, and the like.
Therefore, there is a need for a cooking appliance that at least partially solves the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.
The utility model provides a cooking utensil. The cooking utensil comprises a pot body and a cover body. An inner pot is arranged in the cooker 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 inner pot. The cooking space includes a food storage space and a cavity space above the food storage space. The cover body comprises an infrared heating element, and the infrared heating element radiates infrared rays to the cavity space. Wherein the carbon content of the infrared heating element is more than or equal to 80 percent, and the main wavelength of the infrared is 1.5-25 mu mThe power density of infrared radiation at the pot mouth part is 0.06W/cm2～10.19W/cm2。
According to the utility model discloses a cooking utensil, the infrared heating element that contains carbon more than or equal to 80% in the lid radiates the infrared ray that the main wavelength is 1.5 mu m ~ 25 mu m to the cavity space to the infrared radiation's of interior pot mouth portion power density is 0.06W/cm2～10.19W/cm2The utilization efficiency can be improved. 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. Wherein, to the fragrance composition, the utility model provides a cooking utensil is 37% than the hexanal content of ordinary cooking utensil, and nonanal content is high 11%, and rice fragrance is abundanter.
Optionally, the carbon content of the infrared heating element is greater than or equal to 90%.
Optionally, the infrared light has a main wavelength of 5 μm to 15 μm.
Optionally, the power density of the infrared radiation at the inner pot mouth is 0.1W/cm2～3.82W/cm2。
Optionally, the power density of the infrared radiation at the inner pot mouth is 0.16W/cm2～1.91W/cm2。
Optionally, the power of the infrared heating element is 30W-800W.
Optionally, the power of the infrared heating element is 50W-300W.
Optionally, the power of the infrared heating element is 80W-150W.
Optionally, the infrared heating element is an electrothermal tube or an electrothermal coating.
Optionally, the electrothermal tube is a carbon fiber electrothermal tube, and the electrothermal coating is a graphene electrothermal coating.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles and devices 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 partially exploded perspective view of the lid of the cooking appliance shown in FIG. 1, showing the inner liner, the thermal insulation member, and the infrared heat generating member; and
fig. 3 shows the power density values of different cooking appliances (different diameters of the mouth of the inner pot and/or different powers of the infrared heating element).
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 present invention.
In the following description, for purposes of explanation, numerous 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 known to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
The utility model provides a cooking utensil. 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.
Fig. 1 shows a schematic cross-sectional view of a cooking appliance 100 according to an 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, particularly, the respective components of the cover 120 will be described in detail below with reference to fig. 1 to 2.
It should be noted that directional terms used herein in describing the various components and their positional relationships in the cover, such as "above," "below," "upper," "lower," "upward," "downward," "above," "below," "inboard," "outboard," etc., are relative to the cover when in the closed position described below.
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. The top of the inner pot 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. The top opening is generally circular. The diameter phi of the top opening (i.e. the diameter of the inner pot mouth) is usually 10 cm-25 cm, such as 10cm, 15cm, 20cm, 25cm, etc., to meet different requirements of users.
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 is formed between the cover 120 and the pot body 110 (specifically, the inner pot 130 of the pot body 110). The cooking space 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. The infrared heating element 150 is a carbon-containing heating element. 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. For example, 1.5. mu.m, 2. mu.m, 5. mu.m, 10. mu.m, 15. mu.m, 20. mu.m, 25 μm, etc. 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 power density of infrared radiation at the opening part of the inner pot is 0.06W/cm2～10.19W/cm2. For example, 0.06W/cm2、0.1W/cm2、0.16W/cm2、0.96W/cm2、1.59W/cm2、1.91W/cm2、2.26W/cm2、3.39W/cm2、3.82W/cm2、5.7W/cm2、8.23W/cm2、10.19W/cm2And the like. It should be noted that the term "power density" as used herein refers to the power radiated per unit area. Specifically, the ratio of the power of the infrared heating element 150 to the area of the top opening of the inner pan 130 is referred to in the present invention. Preferably, the infrared ray of the inner pot mouth partThe power density of the radiation is 0.1W/cm2～3.82W/cm2. Further preferably, the power density of the infrared radiation at the mouth of the inner pot is 0.16W/cm2～1.91W/cm2。
The applicant found that infrared rays having a main wavelength of 1.5 to 25 μm are radiated to the cavity space through the infrared heating element 150 having a carbon content of 80% or more and the power density of infrared radiation of the inner pot mouth portion is made 0.06W/cm2～10.19W/cm2The heat utilization efficiency can be improved. 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, and the aroma of the food is excited.
As mentioned above, the diameter of the top opening is typically 10cm to 25 cm. Preferably, the infrared heating element 150 has a power of 30W to 800W, for example, 30W, 50W, 80W, 100W, 150W, 200W, 300W, 450W, 600W, 800W, etc., so that the power density of infrared radiation is 0.06W/cm2～10.19W/cm2Within the range. Further preferably, the power of the infrared heating element 150 may be 50W to 300W. Still more preferably, the infrared heating element 150 may have a power of 80W to 150W.
The power density values of the infrared radiation of the inner pot mouth of the different cooking appliances are shown in fig. 3. Wherein, the power of the infrared heating element 150 is 30W-800W, and the diameter phi of the top opening of the inner pot 130 is 10 cm-25 cm. The applicant found that the heat utilization efficiency is high when the diameter phi of the top opening of the inner pot 130, the diameter of the infrared heating element 150, and the power density of the infrared radiation of the inner pot mouth portion are within the ranges shown in fig. 3, respectively. 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, and the aroma of the food is excited.
The infrared heating element 150 may be any suitable element capable of radiating infrared rays. Specifically, in one embodiment of the present invention, as shown in fig. 1 and 2, the infrared heating element 150 is an electrothermal tube. The electric heating tube can be in any suitable shape such as U-shaped, annular, pear-shaped, semicircular, spiral, candle-shaped and the like. More specifically, in one embodiment of the present invention, the infrared heating element 150 is a carbon fiber electric heating tube. The carbon fiber electric heating tube can be composed of a quartz glass tube and carbon fiber encapsulated in the quartz glass tube. The diameter of the electric heating tube can be 6 mm-20 mm. Preferably, the diameter of the infrared electrothermal tube can be 8 mm-12 mm. Electrodes or conducting wires are arranged at two ends of the electrothermal tube. The electrothermal tube can generate heat after being electrified and radiate infrared rays to the cavity space. In other embodiments not shown in the present disclosure, the infrared heating element 150 may also be an electrothermal coating, such as a carbon fiber electrothermal coating or a graphene electrothermal coating.
The installation of the infrared heating element 150 according to an embodiment of the present invention will be described in detail with reference to fig. 1 and 2.
As shown in fig. 1, the cover 120 includes an inner liner 121. The upper or outer side of the liner 121 is provided with a cover 122. An inner cover 123 is provided on the underside or inside 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 inner lid 123 may be a removable inner lid to facilitate removal of the inner lid 123 for cleaning. Of course, the inner lid 123 may be a non-detachable inner lid to reduce manufacturing costs.
The infrared heat generating element 150 is installed on the upper side of the inner cover 123, and infrared rays radiated from the infrared heat generating element 150 can be radiated to the cavity space through the inner cover 123. Specifically, in the present embodiment, as shown in fig. 2, the liner 121 is provided with the mounting through-hole 121A, and the infrared heating element 150 is mounted in the mounting through-hole 121A of the liner 121. More specifically, in the present embodiment, the cover 120 is provided with a heat insulator 170. 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. The shape of the thermal insulator 170 matches the shape and size of the mounting through-hole 121A of the liner 121. The thermal insulator 170 may be installed in the installation through-hole 121A of the liner 121 by any suitable means such as a screw fastener. The infrared heating element 150 is mounted to the heat insulator 170 below the heat insulator 170. For example, in one embodiment of the present invention, as shown in fig. 1, the infrared heating element 150 may be detachably mounted to the thermal insulator 170 below the thermal insulator 170 by one or more snaps. On one hand, the heat insulator 170 may prevent the heat of the infrared heating element 150 from radiating to other non-high temperature resistant parts of the cover 120, such as a printed-circuit board (PCB). On the other hand, the thermal insulator 170 may facilitate the detachable mounting of the infrared heating element 150 to the inner liner 121.
Optionally, in other embodiments not shown in the present invention, a reflector (not shown) may be further disposed between the infrared heating element 150 and the heat insulator 170. The reflector may be made of stainless steel or aluminum. The reflecting member may be made of other mirror materials having high reflectivity to infrared rays to further increase the amount of infrared rays radiated. The shape of the reflecting member is substantially the same as that of the infrared heat generating element 150. The reflecting member has a recess opened downward, and the infrared heating element 150 is disposed in the recess. The cross-section of the groove may be parabolic, trapezoidal with the lower end not closed, or any other suitable shape. The lower side of the reflector is provided with one or more snaps by which the infrared heating element 150 is detachably mounted to the reflector. One or more clamping feet are arranged on the upper side of the reflecting piece. The reflecting member is mounted to the heat insulating member 170 below the heat insulating member by a clip. Thus, in one aspect, the reflector can reflect infrared rays radiated upwards by the infrared heating element into the cavity space to improve the radiation amount of the infrared rays. On the other hand, the reflecting member may facilitate the installation of the infrared heating element 150 under the heat insulator 170.
Optionally, in the case where the inner cover 123 is a detachable inner cover, a spacer (not shown) is further provided between the inner cover 123 and the infrared heat generating element 150. The spacer is at least partially light transmissive. Optionally, the light-transmitting area of the spacer completely corresponds to the light-transmitting areas of the infrared heating element and the inner cover, so that infrared rays radiated from the infrared heating element penetrate through the spacer and the inner cover as much as possible, improving heat utilization efficiency. The spacer 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 so as to be transparent to infrared rays. The mesh may be a circular mesh, a diamond mesh, a great wall mesh, or any other suitable shape. On one hand, the spacer can allow infrared rays radiated from the infrared heating element 150 to pass through the spacer; on the other hand, when the user detaches the inner cap 123 according to actual needs, the isolation member can avoid the danger of scalding or electric shock caused by the user touching the infrared heating element 150.
In conclusion, the cooking appliance according to the present invention radiates the infrared ray having the dominant wavelength of 1.5 to 25 μm (preferably, 5 to 15 μm) to the cavity space through the infrared heating element having the carbon content of 80% or more (preferably, 90% or more) provided in the cover body, and makes the power density of the infrared radiation of the inner pot mouth portion to be 0.06W/cm2～10.19W/cm2(preferably 0.1W/cm)2～3.82W/cm2And further preferably 0.16W/cm2～1.91W/cm2) The heat utilization efficiency can be improved. 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. For the fragrance component, use the utility model provides a cooking utensil is than using ordinary cooking utensil, and hexanal content is high 37%, and nonanal content is high 11%. 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 described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to 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 more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A cooking appliance, characterized in that the cooking appliance (100) comprises:
the cooker comprises a cooker body (110), wherein an inner pot (130) is arranged in the cooker body (110); and
a cover body (120), the cover body (120) is openably and closably arranged on the cooker body (110), when the cover body (120) is covered on the cooker body (110), a cooking space is formed between the cover body (120) and the inner pot (130), the cooking space comprises a food storage space and a cavity space above the food storage space, the cover body comprises an infrared heating element (150), the infrared heating element (150) radiates infrared rays to the cavity space,
wherein the carbon content of the infrared heating element (150) is more than or equal to 80 percent, the main wavelength of the infrared ray is 1.5 to 25 mu m, and the power density of the infrared radiation at the opening part of the inner pot is 0.06W/cm2～10.19W/cm2。
2. The cooking appliance according to claim 1, wherein the infrared heating element (150) has a carbon content greater than or equal to 90%.
3. The cooking appliance according to claim 1, wherein the infrared ray has a main wavelength of 5 to 15 μm.
4. The cooking appliance of claim 1, wherein the power density of the infrared radiation of the inner pan mouth is 0.1W/cm2～3.82W/cm2。
5. The cooking appliance of claim 4, wherein the inner pot mouth isThe power density of the infrared radiation is 0.16W/cm2～1.91W/cm2。
6. The cooking appliance according to claim 1, wherein the infrared heating element has a power of 30W to 800W.
7. The cooking appliance according to claim 6, wherein the infrared heating element has a power of 50W to 300W.
8. The cooking appliance according to claim 7, wherein the infrared heating element has a power of 80W to 150W.
9. The cooking appliance according to any one of claims 1 to 8, wherein the infrared heating element (150) is an electrothermal tube or an electrothermal coating.
10. The cooking appliance of claim 9, wherein the electrical heating tube is a carbon fiber electrical heating tube and the electro-thermal coating is a graphene electro-thermal coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067700.9U CN209863280U (en) | 2018-12-10 | 2018-12-10 | Cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822067700.9U CN209863280U (en) | 2018-12-10 | 2018-12-10 | Cooking utensil |
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| Publication Number | Publication Date |
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| CN209863280U true CN209863280U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822067700.9U Active CN209863280U (en) | 2018-12-10 | 2018-12-10 | Cooking utensil |
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| CN (1) | CN209863280U (en) |
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- 2018-12-10 CN CN201822067700.9U patent/CN209863280U/en active Active
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