CN210930857U

CN210930857U - Cooking utensil

Info

Publication number: CN210930857U
Application number: CN201822067267.9U
Authority: CN
Inventors: 陈舒; 樊杜平
Original assignee: SEB SA
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd; SEB SA
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2020-07-07
Anticipated expiration: 2028-12-10

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 lid can set up on the a kind of deep pot body with opening and shutting, when the lid closes on the a kind of deep pot body, forms the culinary art space between lid and the interior pot, and the culinary art space includes the cavity space of food parking space and food parking space top. The cover body is internally provided with an infrared heating element, a first temperature measuring device and a heat insulator. The infrared heating element is used for radiating infrared rays to the cavity space in the cooking process. The first temperature measuring device can be in contact with water vapor from the cavity space to monitor the temperature of the water vapor. The insulator is at least partially located between the infrared heating element and the first temperature measuring device. According to the utility model discloses a cooking utensil can arouse the fragrance of food, prevents that the infrared heat that infrared heating element radiated is transmitted to first temperature measuring device and produces the influence to first temperature measuring device's measuring result.

Description

Cooking utensil

Technical Field

The utility model relates to a cooking 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 radiate heat to a heated space by heating means, such as a heating wire or an electromagnetic heating element, provided in a cover. There are also designs in which an infrared heating element is provided in the lid to radiate infrared rays toward the cooking space, and a temperature measuring device for monitoring the temperature of water vapor from the cavity space is generally provided on the lid. The accuracy requirements for thermometry devices are generally high, particularly in the pre-boiling stage. However, the infrared heating element in the cover may affect the measurement result of the temperature measuring device.

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.

According to an aspect of the present invention, there is provided a cooking appliance. 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, and the cooking space comprises a food storage space and a cavity space above the food storage space. The cover body is internally provided with an infrared heating element, a first temperature measuring device and a heat insulator. The infrared heating element is used for radiating infrared rays to the cavity space in the cooking process. The first temperature measuring device can be contacted with water vapor from the cavity space to monitor the temperature of the water vapor. The insulator is at least partially located between the infrared heating element and the first temperature measuring device.

According to the utility model discloses a cooking utensil is through setting up the infrared heating element in the lid to cavity space radiation infrared ray, and the heat utilization efficiency is high. The infrared ray radiated by the infrared heating element to the cavity space above the food storage space can effectively heat the surface layer food, so that the food is uniformly heated, the main volatile components in the rice can overflow, the fragrance of the food can be excited, and the fragrance of the rice can overflow in the cooking process and after the cooking process is finished. In addition, the heat insulator at least partially arranged between the infrared heating element and the first temperature measuring device can prevent the heat of the infrared rays radiated by the infrared heating element from being transferred to the first temperature measuring device to influence the measuring result of the first temperature measuring device. Therefore, the first temperature measuring device can accurately measure the temperature of the water vapor from the cavity space, so that the cooking state can be accurately judged and the cooking process can be accurately controlled.

Optionally, the thermal insulator is disposed around at least one of the infrared heating element and the first thermometric device.

Optionally, be provided with the separator in the lid, the separator is at least partial printing opacity and is located infrared heating element's below, the separator is provided with first dodge the hole, first temperature measuring device stretches into in the first dodge the hole, the insulator includes first insulator, first insulator sets up the upper surface of separator and edge the periphery setting in first dodge the hole.

Optionally, the insulator comprises a second insulator disposed on an upper surface of the insulator and surrounding the infrared heating element.

Optionally, the insulator is located entirely between the infrared heating element and the first temperature measuring device.

Optionally, a spacer is disposed in the cover, the spacer is at least partially transparent and located below the infrared heating element, and the heat insulator is disposed on an upper surface of the spacer.

Optionally, the isolation piece is provided with a first avoidance hole, the first temperature measuring device extends into the first avoidance hole, and the heat insulator is located between the infrared heating element and the first avoidance hole.

Optionally, the cover body comprises an inner cover, the inner cover is at least partially transparent and is located below the infrared heating element, and the minimum distance between the projection of the infrared heating element on the inner cover and the projection of the first temperature measuring device on the inner cover is greater than or equal to 5 cm.

Optionally, the area of the projection of the infrared heating element on the inner cover is greater than or equal to 1/3 of the area of the inner cover.

Optionally, a second temperature measuring device is arranged in the cover body and located above the infrared heating element to monitor the temperature of the cavity space.

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 perspective view of a cooking appliance according to a first embodiment of the present invention;

fig. 2 is an exploded perspective view of a partial structure of a cover of the cooking appliance shown in fig. 1; and

fig. 3 is a perspective view of a cooking appliance according to a second embodiment of the present invention.

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 to 3 show schematic views of cooking appliances according to two different embodiments of the present invention. The cooking appliance of the present invention will be described in detail with reference to fig. 1 to 3. It should be noted that directional terms used herein in describing various components of the cooking appliance and their positional relationships, such as "above," "below," "upper side," "lower side," "upward," "downward," "above," "below," "inboard," "outboard," etc., are relative to the cooking appliance when placed on a horizontal surface and the cover is in a closed position.

First embodiment

Fig. 1 and 2 show schematic views of a cooking appliance 100 according to a first embodiment of the present invention. The cooking appliance 100 includes a pot body 110 and a cover 120. The respective components of the cooking appliance 100 will be described in detail below with reference to fig. 1 and 2.

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 electromagnetic heating device such as an electromagnetic coil.

As shown in fig. 1, 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 cover 120 may be pivotably disposed above the pot body 110 between the maximum open position and the closed position by, for example, a hinge manner to cover the top of the inner pot 130 of the pot body 110. 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.

As shown in fig. 1 and 2, the cover body 120 includes an inner cover 123. The cover body 120 also includes a surface cover located on the upper or outer side of the inner cover 123. An inner liner 121 is provided between the inner cover 123 and the face cover for mounting the respective components in the cover body 120. The inner cover 123 is at least partially light transmissive. For example, at least a portion of the inner lid 123 is made of a light-transmitting material such as transparent tempered glass, silicon glass, germanium glass, or light-transmitting PC (Polycarbonate). The inner lid 123 is provided with a steam outlet 124 for discharging steam. The inner lid 123 may be a removable inner lid to facilitate removal of the inner lid 123 for cleaning. Specifically, in the present embodiment, the inner lid 123 is detachably attached to the lower side of the liner 121 by means such as a snap.

As shown in fig. 1 and 2, an infrared heating element 150 is provided in the cover 120. In the present embodiment, the infrared heat generating element 150 is disposed between the liner 121 and the inner cover 123. More specifically, the infrared heat generating element 150 is disposed on the lower side of the inner liner 121, i.e., the side facing the inner cover 123. The infrared heating element 150 functions to radiate infrared rays to the cavity space during cooking. The infrared ray radiated to the cavity space by the infrared heating element 150 can effectively heat the surface layer food, so that the food is uniformly heated, thereby exciting the fragrance of the food.

Specifically, 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 90% or more. 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 applicant found that the infrared heating element 150 containing 80% or more of carbon radiates infrared rays having a main wavelength of 1.5 to 25 μm into the cavity space, and the heat utilization efficiency is high. 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.

Specifically, in the present embodiment, 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. The applicant finds that the cooked rice has stronger fragrance when the temperature of the cavity space is controlled to be 100-150 ℃ during the boiling stage and the stewing stage of the cooking process. When the power of the infrared electric heating tube is in the range, the temperature of the cavity space is conveniently controlled to be 100-150 ℃. 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 not shown in the present invention, the infrared heating element 150 and/or the infrared electrothermal tube may be in the shape of a ring, a pear, a semicircle, a spiral, a candle, etc. In addition, the infrared heating element 150 may also be an electrothermal film that can be energized and radiate infrared rays, such as a carbon fiber electrothermal film.

As shown in fig. 1, the cover 120 is further provided with a first temperature measuring device 190. The first temperature measuring device 190 may be any suitable temperature measuring device such as a thermistor, copper thermistor, or the like. The first temperature measuring device 190 can be in contact with the water vapor from the cavity space to monitor the temperature of the water vapor, thereby judging the cooking state. Generally, it is required that the first temperature measuring device 190 can accurately monitor the temperature of the water vapor from the cavity space to accurately judge the cooking state (e.g., whether boiling occurs) so that the cooking parameters (e.g., adjusting the heating power, heating time, etc. of the heating device) can be timely adjusted. However, since the infrared heating element 150 is provided in the cover 120, the infrared heating element 150 radiates infrared rays to generate heat during cooking. The heat generated by the infrared rays radiated from the infrared heating element 150 interferes with the measurement result of the first temperature measuring device 190. Therefore, in the present invention, as shown in fig. 2, the cover 120 is further provided with a heat insulator 140. The heat insulator 140 may be made of high temperature resistant plastic such as bakelite, PPS (polyphenylene sulfide) plastic, PBT (Polybutylene terephthalate) plastic, PET (Polyethylene terephthalate) plastic. The thermal insulator 140 may also be made of high temperature resistant insulation cotton or mica board. A part or the whole of the heat insulator 140 is located between the infrared heating element 150 and the first temperature measuring device 190 to separate the infrared heating element 150 and the first temperature measuring device 190, thereby preventing heat radiated from the infrared heating element 150 from being transferred to the first temperature measuring device 190 to disturb the measurement result of the first temperature measuring device 190 as much as possible.

The thermal insulator 140 may be disposed around at least one of the infrared heating element 150 and the first temperature measuring device 190. For example, in the present embodiment, as shown in fig. 2, the thermal insulator 140 may include a first thermal insulator 141 disposed around the first temperature measuring device 190 and a second thermal insulator 142 disposed around the infrared heating element 150.

Specifically, as shown in fig. 2, a spacer 180 is provided in the cover 120. The spacer 180 is disposed under the infrared heat generating element 150. In the present embodiment, the spacer 180 is disposed between the inner cover 123 and the infrared heat generating element 150. The upper side of the spacer 180 is provided with one or more spacer catches 181. The liner 121 is provided with one or more first through holes (not shown). Spacer catch 181 passes through a first through hole of liner 121 and is bent to mount spacer 180 to liner 121. 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 so as to be transparent to infrared rays. Alternatively, the mesh on the spacer 180 may be positioned to correspond to the infrared heating element 150. The mesh may be a circular mesh, a diamond mesh, a great wall mesh, or any other suitable shape. 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, the isolation member 180 can prevent the user from touching the infrared heating element 150 to cause the danger of scalding or electric shock.

As shown in fig. 2, the spacer 180 is provided with a first relief hole 182. The first temperature measuring device 190 extends into the first avoiding hole 182. The inner lid 123 is provided with a second relief hole. In the present embodiment, the second avoiding hole is the steam outlet 124 on the inner lid 123. The first avoidance hole 182 corresponds to the second avoidance hole. The first temperature measuring device 190 also extends into the second avoiding hole. As such, the first temperature measuring device 190 is exposed to the steam of the cavity space through the first avoiding hole 182 and the second avoiding hole, so that the first temperature measuring device 190 can be in contact with the steam from the cavity space. The first insulator 141 is disposed on an upper surface (i.e., a surface facing the infrared heat generating element 150) of the spacer 180 and along a periphery of the first avoidance hole 182. The second insulator 142 is disposed on an upper surface (i.e., a surface facing the infrared heat generating element 150) of the spacer 180 and surrounds the infrared heat generating element 150. Specifically, in the present embodiment, the second insulator 142 is disposed around the light transmitting region on the spacer 180 such that the second insulator 142 is disposed around the infrared heat generating element 150. Thus, the first thermal insulator 141 can surround the first temperature measuring device 190 extending into the first avoiding hole 182 to separate the first temperature measuring device 190 from the infrared heating element 150; the second insulator 142 can surround the infrared heating element 150 to separate the first temperature measuring device 190 from the infrared heating element 150; thereby effectively preventing heat of the infrared rays radiated from the infrared heating element 150 from being transferred to the first temperature measuring device 190. Therefore, the first temperature measuring device 190 can accurately measure the temperature of the water vapor from the cavity space, so that the cooking state can be accurately judged and the cooking process can be correctly controlled.

It should be noted that although the thermal insulator 140 is illustrated as including the first thermal insulator 141 and the second thermal insulator 142 in the present embodiment, in other embodiments not illustrated in the present invention, the thermal insulator 140 may include only the first thermal insulator 141 or only the second thermal insulator 142.

Optionally, the minimum distance between the projection of the infrared heating element 150 on the inner cover 123 and the projection of the first temperature measuring device 190 on the inner cover 123 is greater than or equal to 5 cm. For example, the minimum distance between the projection of the infrared heating element 150 on the inner cover 123 and the projection of the first temperature measuring device 190 on the inner cover 123 is 5cm, 8 cm, 10 cm and the like. That is, the distance between the portion of the infrared heating element 150 projected onto the inner cover 123 closest to the projection of the first temperature measuring device 190 onto the inner cover 123 and the projection of the first temperature measuring device 190 onto the inner cover 123 is 5cm or more. The applicant found that, when the minimum distance between the projection of the infrared heat generating element 150 on the inner lid 123 and the projection of the first temperature measuring device 190 on the inner lid 123 is 5cm or more, the infrared heat generating element 150 hardly or hardly affects the measurement result of the first temperature measuring device 190. Therefore, the first temperature measuring device 190 can measure the temperature of the water vapor from the cavity space more accurately, so that the cooking state can be judged more accurately and the cooking parameters can be controlled correctly.

The area of the projection of the infrared heat generating element 150 on the inner lid 123 directly affects the heating effect. If too small, heating efficiency may be low. If too large, the first temperature measuring device 190 will be touched to affect the measurement result of the first temperature measuring device 190. In the present embodiment, it is preferable that the area of the projection of the infrared heat generating element 150 on the inner lid 123 is equal to or larger than 1/3 of the area of the inner lid 123. For example, the area of the projection of the infrared heat generating element 150 on the inner lid 123 is 1/3, 1/2, 2/3, etc. of the area of the inner lid 123. The applicant found that when the area of the projection of the infrared heat generating element 150 on the inner lid 123 is equal to or larger than 1/3, which is the area of the inner lid 123, the heat utilization efficiency of the infrared heat generating element 150 is high. The area of the inner lid 123 referred to herein is an area surrounded by the outer contour of the inner lid 123, that is, an area including the steam outlet 124 or the second escape opening in the inner lid 123.

Optionally, a second temperature measuring device 128 is further disposed in the cover 120. The second temperature measuring device 128 may be any suitable temperature measuring device such as a thermistor, copper thermistor, or the like. The second thermometric device 128 is used to indirectly monitor the temperature of the chamber space (ambient temperature) in order to monitor and control the temperature of the chamber space. For example, in one embodiment of the present invention, the temperature of the cavity space can be controlled to be 100 ℃ to 150 ℃ by the second temperature measuring device 128 during the boiling and stewing phases of the cooking process. Specifically, the second thermometric device 128 may be mounted in the cover 120 in a location that indirectly reflects the temperature of the cavity space. In this way, in actual operation, the second temperature measuring device 128 first measures the temperature at the installation position and then sends the monitored temperature signal to the control device of the cooking appliance 100. The control means may be provided in the lid 120 or in the pot body 110. The control device may calculate the actual temperature of the cavity space from the received temperature signal according to a predetermined functional relationship. And takes corresponding measures based on the temperature, such as adjusting the heating cycle ratio of the infrared heating element 150, etc., to control the temperature of the cavity space. Thus, a temperature measuring device for measuring the temperature of the cavity space extending into the cavity space is not required, and the structure of the cooking appliance 100 is simplified.

Optionally, in an embodiment of the present invention, the second temperature measuring device 128 is disposed above the inner lid 123. The inner cover 123 does not need to be provided with the second temperature measuring device 128 or provided with a avoiding hole for the second temperature measuring device 128 to extend out, so that the manufacturing cost is reduced, and the cover body 120 is more attractive.

Optionally, in an embodiment of the present invention, the second temperature measuring device 128 is disposed above the infrared heating element 150. Specifically, as shown in fig. 2, a reflection member 160 is disposed in the cover 120 above the infrared heating element 150, and the second temperature measuring device 128 is disposed on the reflection member 160.

More specifically, as shown in fig. 2, the reflection member 160 is disposed between the inner liner 121 and the infrared heat generating element 150. The reflection member 160 may be made of stainless steel or aluminum. The reflecting member 160 may also be made of other mirror materials having high reflectivity to infrared rays. The reflecting member 160 has a first recess opened downward, and the infrared heat generating element 150 is disposed in the first recess. The cross-section of the first groove may be parabolic, trapezoidal with the lower end not closed, or any other suitable shape. The lower side of the reflecting member 160 is provided with one or more snaps by which the infrared heat generating element 150 is detachably mounted to the reflecting member 160. The upper side of the reflector 160 is provided with one or more reflector catches 162. The reflector 160 is mounted to the liner 121 by reflector clips 162. The second temperature measuring device 128 is adhered to the upper surface of the reflecting member 160 so as to mount the second temperature measuring device 128. Of course, the second temperature measuring device 128 can be mounted to the reflector 160 in any other suitable manner, as appropriate.

In one aspect, the reflector 160 may reflect the infrared rays radiated upward from the infrared heating element 150 into the cavity space to increase the radiation amount of the infrared rays. Alternatively, the reflective member 160 can be used to secure the second thermometric device 128.

Optionally, as shown in fig. 2, the cover 120 further includes a fuse link 129. The fuse 129 is connected between the power supply and the infrared heating element 150. When the temperature in the cover 120 is higher and reaches a predetermined threshold, the fuse link 129 disconnects the circuit between the power supply and the infrared heating element 150, and the infrared heating element 150 cannot work, so that the temperature of the cover 120 is reduced, and the potential safety hazard is reduced. This is particularly advantageous in the event of a failure or malfunction of the second temperature measuring device 128.

The fuse link 129 may be disposed at any suitable location in the cover 120. Specifically, in the present embodiment, as shown in fig. 2, a heat shield 170 positioned above the infrared heating element 150 is further provided in the lid 120, and the fuse 129 is provided in the heat shield 170.

More specifically, as shown in fig. 2, a heat shield 170 is disposed between the inner liner 121 and the infrared heating element 150. More specifically, the heat shield 170 is disposed between the inner liner 121 and the reflector 160. That is, the heat shield 170 is disposed below the inner liner 121 and above the reflector 160 and the infrared heating element 150. The heat shield 170 has a second recess that opens downwardly. The infrared heat generating element 150 and the reflector 160 are at least partially disposed in the second recess. The cross-section of the second groove may be parabolic, trapezoidal with the lower end not closed, or any other suitable shape. One or more heat shield through holes may be provided in the heat shield 170. The number of heat shield through holes corresponds to the number of reflector clips 162. The reflector clip 162 is inserted through a heat shield through-hole in the heat shield 170 and a second through-hole (not shown) in the inner liner 121 in order to mount the heat shield 170, the reflector 160, and the infrared heating element 150 on the lower side of the inner liner 121.

The upper side of the heat shield 170 is provided with a receiving portion 176 recessed toward the infrared heat generating element 150. The shape of the receiving portion 176 is adapted to the shape of the fuse link 129. The fuse link 129 is disposed in the accommodating portion 176. In this way, the mounting of the fuse link 129 is facilitated. Of course, the fuse link 129 may be mounted to the heat shield 170 in any other suitable manner, as appropriate.

On one hand, the heat shield 170 may prevent heat of the infrared heating element 150 from radiating to other portions of the cover 120, such as the printed circuit board, which are not resistant to high temperature. On the other hand, the fuse link 129 at the heat shield 170 may break the circuit between the power supply and the infrared heating element 150 at a high temperature, and the infrared heating element 150 may not operate, so that the temperature of the cover 120 is lowered.

The heat shield 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 shield 170 may also be made of high temperature resistant heat insulation cotton or mica board.

Second embodiment

Fig. 3 shows a schematic perspective view of a cooking appliance 200 according to a second embodiment of the present invention. The cooking appliance 200 is substantially similar to the cooking appliance 100 according to the first embodiment of the present invention except for the provision of the insulator 240. Therefore, for the sake of brevity, components that are substantially the same as those of the first embodiment will not be described in detail herein.

As shown in fig. 3, the cover 120 of the cooking appliance 200 is also provided therein with an infrared heating element 150 for radiating infrared rays to the cavity space during cooking and a first temperature measuring device 190 capable of contacting with water vapor from the cavity space to detect the temperature of the water vapor. The first temperature measuring device 190 extends into the first relief hole in the spacer and the second relief hole in the inner lid 123. A heat insulator 240 is disposed between the first temperature measuring device 190 and the infrared heating element 150. In this embodiment, the heat insulator 240 is entirely located between the infrared heating element 150 and the first temperature measuring device 190, so that the heat insulator 240 can most effectively prevent the heat radiated from the infrared heating element 150 from being transferred to the first temperature measuring device 190 and affecting the measurement result of the first temperature measuring device 190. Therefore, the first temperature measuring device 190 can accurately measure the temperature of the water vapor from the cavity space, so that the cooking state can be accurately judged and the cooking process can be correctly controlled.

Specifically, in the present embodiment, the shape of the heat insulator 240 is substantially similar to the shape of the infrared heat generating element 150. The insulator 240 is disposed on the upper surface of the insulator (i.e., the surface facing the infrared heat generating element 150) and is entirely located between the infrared heat generating element 150 and the first temperature measuring device 190. More specifically, the partition 180 is provided with a first avoidance hole 182, and the first temperature measuring device 190 is inserted into the first avoidance hole 182. The heat insulator 240 is located between the infrared heating element 150 and the first avoiding hole 182. The insulator 240 may be integrally formed with the spacer or may be separately formed.

To sum up, according to the utility model discloses a cooking utensil is through setting up the infrared heating element in the lid to cavity space radiation infrared ray, and heat utilization efficiency is high. The infrared ray radiated by the infrared heating element to the cavity space above the food storage space can effectively heat the surface layer food, so that the food is uniformly heated, the main volatile components in the rice can overflow, the fragrance of the food can be excited, and the fragrance 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, C_iRepresents the concentration of the volatile component in the sample (. mu.g/g), A_iRepresents the area percentage of the volatile component content, A_isRepresents the area percent of 1, 2-dichlorobenzene, C_isThe 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.

In addition, the heat insulator at least partially arranged between the infrared heating element and the first temperature measuring device can prevent the heat of the infrared rays radiated by the infrared heating element from being transferred to the first temperature measuring device to influence the measuring result of the first temperature measuring device. Therefore, the first temperature measuring device can accurately measure the temperature of the water vapor from the cavity space, so that the cooking state can be accurately judged and the cooking process can be accurately controlled.

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

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

the cover body (120) is arranged on the cooker body (110) in an openable and closable manner, when the cover body (120) covers the cooker body (110), a cooking space is formed between the cover body (120) and the inner pot (130), and the cooking space comprises a food storage space and a cavity space above the food storage space; the cover body (120) is provided with:

an infrared heating element (150), the infrared heating element (150) being used for radiating infrared rays to the cavity space during cooking;

a first temperature measuring device (190), the first temperature measuring device (190) being contactable with water vapor from the cavity space to monitor a temperature of the water vapor; and

a thermal insulation at least partially between the infrared heating element (150) and the first temperature measuring device (190).

2. The cooking appliance according to claim 1, wherein the thermal insulation is disposed around at least one of the infrared heating element (150) and the first temperature measuring device (190).

3. The cooking appliance according to claim 2, wherein a spacer (180) is provided in the cover (120), the spacer (180) being at least partially light transmissive and located below the infrared heating element (150), the spacer (180) being provided with a first relief hole (182), the first temperature measuring device (190) extending into the first relief hole (182), the thermal insulator comprising a first thermal insulator (141), the first thermal insulator (141) being provided on an upper surface of the spacer (180) and being provided along a periphery of the first relief hole (182).

4. The cooking appliance according to claim 3, wherein the insulator comprises a second insulator (142), the second insulator (142) being disposed on an upper surface of the insulator (180) and surrounding the infrared heating element (150).

5. The cooking appliance according to claim 1, wherein the thermal insulation is entirely located between the infrared heating element (150) and the first temperature measuring device (190).

6. The cooking appliance according to claim 5, wherein a spacer (180) is provided in the cover (120), the spacer (180) being at least partially light transmissive and located below the infrared heating element (150), the thermal insulation being provided on an upper surface of the spacer (180).

7. The cooking appliance according to claim 6, wherein the spacer (180) is provided with a first relief hole (182), the first temperature measuring device (190) extends into the first relief hole (182), and the thermal insulator is located between the infrared heating element (150) and the first relief hole (182).

8. The cooking appliance according to claim 1, characterized in that the cover body (120) comprises an inner cover (123), the inner cover (123) being at least partially light-transmitting and being located below the infrared heating element (150), the minimum distance between the projection of the infrared heating element (150) on the inner cover (123) and the projection of the first temperature measuring device (190) on the inner cover (123) being greater than or equal to 5 cm.

9. The cooking appliance according to claim 8, wherein the area of the projection of the infrared heat generating element (150) on the inner lid (123) is greater than or equal to 1/3 of the area of the inner lid (123).

10. The cooking appliance according to claim 1, wherein a second temperature measuring device (128) is provided in the cover (120), the second temperature measuring device (128) being located above the infrared heating element (150) to monitor the temperature of the cavity space.