Patent Application
20220039595
The present application claims priority to Chinese Patent Application Number CN2020107967181, filed Aug. 10, 2020, the entirety of which is hereby incorporated by reference.
This application is related to the field of small household appliances, and particularly related to an air cooking device.
Air cooking devices are being used by more and more consumers. Different from the conventional method of frying with hot oil, air cooking devices use air as a heat transfer carrier to effectively reduce the oil content of the ingredients and provide users with a healthy diet. The current air cooking devices can be basically divided into two types: drawer type and clamshell type. The relevant drawer type air cooking device includes a light-wave tube and a temperature measuring device. However, the light emitted by the light-wave tube can easily render the temperature measurement by the temperature measuring device inaccurate.
This application provides an air cooking device that improves the accuracy of temperature measurement by a temperature measuring device.
More specifically, this application provides an air cooking device with a cooking cavity, and includes a heating device located above the cooking cavity, a temperature measuring device and a fan, wherein the fan is used to suck up air in the cooking cavity and blow it toward the heating device, and the hot air blows to the cooking cavity to cook food. The temperature measuring device is used to detect the temperature in the cooking cavity. The air cooking device also includes a shielding cover between the heating device and the temperature measuring device. The shielding cover shields the heating device from radiating to and heating the temperature measuring device.
Further, the shielding cover may include an arc-shaped shielding portion, where the shielding portion is arranged around the periphery of the temperature measuring device.
Further, the shielding cover may include a first shielding piece and a second shielding piece connected together, wherein the temperature measuring device is located in the space enclosed by the first shielding piece and second shielding piece. The included angle between the first shielding piece and second shielding piece may be an acute angle, where the end point of the acute angle faces toward a wind direction, and the angle bisector of the included angle is roughly parallel to the wind direction of the wind blown by the fan to thereby reduce the resistance of the shielding cover to the wind blown by the fan.
Further, the included angle between the angle bisector of the included angle between the first shielding piece and the second shielding piece and the wind direction of the wind blown by the fan may be greater than or equal to 0 degrees and less than or equal to 20 degrees.
Further, the fan may be a centrifugal fan, where the blades of the centrifugal fan are at an acute angle to the radial direction, so that the wind from the centrifugal fan and the radial direction of the centrifugal fan are at an acute angle, wherein the angle bisector of the included angle between the first shielding piece and second shielding piece and the radial radiation direction of the centrifugal fan may be greater than or equal to 10 degrees to less than or equal to 80 degrees.
Further, the heating device may include a light-wave tube, wherein the light-wave tube may be arranged as a superior arc, having the two ends of the superior arc as two wire-outgoing ends of the light-wave tube, and the temperature measuring device is set between the two wire-outgoing ends.
Further, the air cooking device may include a transparent portion located above the cooking cavity, wherein the transparent portion is in a ring shape and surrounds the fan and heating device to facilitate the observation of the cooking in the cooking cavity.
Further, the air cooking device may include a protective cover under the fan, wherein the protective cover includes an air inlet, an air outlet, and a shielding portion located between the air inlet and the air outlet. The shielding portion may be located under the light-wave tube, to shield the light emitted by the light-wave tube, to thereby prevent the light emitted by the light-wave tube from directly irradiating the food in the cooking cavity.
Further, the light-wave tube may be arranged around the periphery of the fan.
Further, the position of the air outlet may be lower than the position of the air inlet.
The air cooking device of this application may include a shielding cover located between the heating device and the temperature measuring device to shield the heating device from radiating to and heating the temperature measuring device, so as to improve the accuracy of temperature measurement by the temperature measuring device.
Here, exemplary implementations will be explained in detail, and examples thereof are shown in the attached figures. When the following description refers to the attached figures, unless otherwise indicated, the same numbers in different attached figures indicate the same or similar elements. The implementations described in the following exemplary implementations do not represent all implementations consistent with this application. On the contrary, they are only examples of devices that are consistent with some aspects of this application.
The terminology used in this application is only for the purpose of describing specific implementations, and is not intended to limit this application. Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by those with general skills in the field to which this application belongs. “First”, “second” and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as “one piece” or “one”, etc. do not mean a quantity limit, but mean that there is at least one. “Multiple pieces” or “several” means two or more. Unless otherwise indicated, similar words such as “front”, “rear”, “lower” and/or “upper” are only for convenience of description, and are not limited to one position or one spatial orientation. “Including” or “containing” and other similar words mean that the elements or items appearing before the word “including” or “containing” cover the elements or items appearing after “including” or “containing” and their equivalents, and do not exclude other elements or items. Similar words such as “connecting” or “coupling” are not limited to physical or mechanical connections, and may include electrical connections, no matter whether it is direct or indirect. The singular forms of “a kind,” “the,” and “this” used in this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term “and/or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.
As shown in
The air cooking device includes an upper shell 8 and a lower shell 9. The motor 7 is located above the upper shell 8 and the fan 3 is located below the lower shell 9. One end of the transparent portion 5 is clamped and fixed between the upper shell 8 and the lower shell 9 to fix the transparent portion 5. The material of the transparent portion 5 can be glass or the like. The transparent portion 5 is in a ring shape and surrounds the fan 3 and the heating device 1 to facilitate the observation of the cooking situation in the cooking cavity. The heating device 1 can be a light-wave tube. The light emitted by the heating device 1 can not only play a heating function, but also illuminate the cooking space, so as to facilitate the observation of the cooking in the cooking cavity. The shaft portion of the motor 7 passes through the upper shell 8 and the lower shell 9 and is then fixed with the fan 3 so that the motor 7 can drive the fan 3 to rotate.
The protective cover 6 can be fixed to the lower shell 9 by bolts, etc., to facilitate the assembly and disassembly of the protective cover 6. The protective cover 6 includes an air inlet 61, an air outlet 62, and a shielding portion 63 located between the air inlet 61 and the air outlet 62. The shielding portion 63 is located under the light-wave tube to shield the light emitted by the light-wave tube and prevent the light emitted by the light-wave tube from directly irradiating the ingredients in the cooking cavity, causing the situation in which the ingredients are not completely cooked, but the surface of the ingredients is burnt.
The light-wave tube is detachably fixed to the lower shell 9 through multiple metal locking buckles 10. The light-wave tube is arranged as a superior arc (i.e., an arc extending more than 180 degrees) around the periphery of the fan 3, which facilitates the wind passing through the air inlet 61 to pass around the light-wave tube, which is beneficial to the wind heating. The lowest point of the fan 3 is higher than the lowest point of the light-wave tube and lower than the highest point of the light-wave tube to prevent the wind from the air inlet 61 from passing under the light-wave tube, potentially causing the situation in which the ingredients would not be heated.
The shielding portion 63 includes a separating portion 630 that extends from the lower side of the heating device 1 to the inner side of the heating device 1 and is positioned upwardly close or proximal to the lower side of the fan 3. The separating portion 630 prevents the wind blown by the fan 3 to the heating device 1 from directly returning to the air inlet 61 without passing through the heating device 1. The shielding portion 63 also includes a guiding portion 632 that extends from the lower side of the heating device 1 to the outer side of the heating device 1 and is positioned downwardly away from the fan 3. The guiding portion 632 keeps the hot air passing through the heating device 1 away from the air inlet 61 as far as possible. The position of the air outlet 62 is lower than that of air inlet 61. The shielding portion 63 has the function of guiding the wind, so that the wind in the cooking space is sucked through the air inlet 61 and heated by the heating device 1, and then directed by the blades of the fan 3 to the side wall of the lower shell 9, and through the guiding structure of the separating portion 630 and the guiding portion 632, such that the wind is blown smoothly to the ingredients in the cooking space, which can better heat the food, and at the same time, reduce wind noise.
With reference to the
With reference to the
The included angle between the angle bisector of the included angle between the first shielding piece 41 and second shielding piece 42 and the wind direction of the wind blown by the fan 3 is greater than or equal to 0 degrees and less than or equal to 20 degrees to reduce the resistance of the shielding cover 4 to the wind blown by the fan 3.
The fan 3 is a centrifugal fan, where the blades of the centrifugal fan are at an acute angle to the radial direction, so that the wind from the centrifugal fan and the radial direction of the centrifugal fan are at an acute angle; the included angle between the angle bisector of the included angle between the first shielding piece 41 and second shielding piece 42 and the radial direction of the centrifugal fan is greater than or equal to 10 degrees to less than or equal to 80 degrees, to thereby reduce the resistance of the shielding cover 4 to the wind blown by the fan 3.
The air cooking device in the implementations of this application includes a shielding cover 4 between the heating device 1 and the temperature measuring device 2, to shield the heating device 1 from radiating to and heating the temperature measuring device 2, and to thereby improve the accuracy of temperature measurement by the temperature measuring device 2. The shielding cover 4 includes a first shielding piece 41 and a second shielding piece 42 connected together, where the temperature measuring device 2 is located in the space enclosed by the first shielding piece 41 and second shielding piece 42. The included angle between the first shielding piece 41 and the second shielding piece 42 is an acute angle, where the end point of the acute angle faces toward the wind direction, and the angle bisector of the included angle is roughly parallel to the wind direction of the wind blown by the fan 3, to thereby reduce the resistance of the shielding cover 4 to the wind blown by the fan 3.
The above description is only the preferable implementation for this application, and does not impose any formal restriction on this application. Although this application has been disclosed as above with the preferable implementation, it is not used to limit this application. Any technical person who is familiar with this field can use the technical content disclosed above to make some changes or modifications and still fall within the scope of the technical solution of this application. Any simple modifications, equivalent changes and modifications made to the above implementations based on the technical essence of this application that do not deviate from the content of technical solution of this application are still within the scope of the technical solution of this application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2020107967181 | Aug 2020 | CN | national |
