CN110805946A

CN110805946A - Kitchen appliance

Info

Publication number: CN110805946A
Application number: CN201911147898.4A
Authority: CN
Inventors: 张振华; 周宇; 唐相伟
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-02-18

Abstract

The application discloses kitchen appliance, kitchen appliance includes cavity, fan subassembly and heating element. The cavity is used for containing food to be cooked, the fan assembly is arranged in the cavity to form an airflow air channel in the cavity in a working state, and the heating assembly is arranged on a path of the airflow air channel and used for decomposing oil smoke particles generated by the food in the cooking process in the airflow air channel. The kitchen appliance of the embodiment of the application sets up heating element through being provided with the fan subassembly that is used for forming the air current wind channel in the cavity and in air current wind channel route, the fan subassembly can be so that the oil smoke granule that produces by eating the material in the culinary art in the cavity forms the air current circulation, and heat the decomposition to the oil smoke granule through heating element on the circulation route, grease in the oil smoke that will reduce food culinary art in-process production effectively, the particulate matter etc., the oil smoke granule content of emission outside the cavity has been reduced, user experience is improved.

Description

Kitchen appliance

Technical Field

The application relates to the technical field of household appliances, in particular to a kitchen appliance.

Background

In the related art, in the cooking process of baking equipment such as a steaming oven and an oven, food materials in an equipment cavity can generate a large amount of oil smoke under a high-temperature condition, and the oil smoke contains a large amount of PM2.5 and other harmful substances. The oil smoke diffuses through the gap or the exhaust channel of the cavity and is discharged to a kitchen or a living environment, the health of a human body is threatened, the living environment of a user is influenced, and the user experience is poor.

Disclosure of Invention

An embodiment of the present application provides a kitchen appliance, including:

the cavity is used for containing food to be cooked;

the fan assembly is arranged in the cavity to form an airflow channel in the cavity in a working state;

the heating assembly is arranged on the path of the airflow air channel and used for decomposing oil fume particles generated by the food in the cooking process in the airflow air channel.

The kitchen appliance of the embodiment of the application sets up heating element through being provided with the fan subassembly that is used for forming the air current wind channel in the cavity and in air current wind channel route, the fan subassembly can be so that the oil smoke granule that produces by eating the material in the culinary art in the cavity forms the air current circulation, and heat the decomposition to the oil smoke granule through heating element on the circulation route, particulate matter in the oil smoke that will reduce food culinary art in-process production effectively, the oil smoke granule content of emission outside the cavity has been reduced, improve user experience.

In some embodiments, the kitchen appliance further includes a partition board dividing the cavity into a first inner cavity and a second inner cavity, and the partition board is provided with an air inlet and an air outlet communicating the first inner cavity and the second inner cavity.

Therefore, the air flow air duct can be standardized, so that the air flow in the air flow air duct is standardized and concentrated, and the air flow in the air flow air duct can pass through the heating assembly and can be effectively heated by the heating assembly.

In some embodiments, the fan assembly corresponds to the air inlet.

So, when fan subassembly and air intake correspond, fan subassembly and air intake's distance is shorter, and the air current in the air current wind channel can assemble the fan subassembly fast on.

In some embodiments, the kitchen appliance further comprises a filter element disposed between the fan assembly and the air inlet.

So, filter element can carry out prefilter to oil smoke in the air current that gets into the air intake, can be convenient for heating element's pyrolysis.

In some embodiments, the fan assembly further includes a rotating shaft, the filter element is mounted at a free end of the rotating shaft, and the filter element can be driven by the rotating shaft to rotate when the fan assembly is in an operating state.

So, some particulate matters, grease etc. in the air current not only can be filtered to the filter element, can also make filterable particulate matter, grease etc. can drive cutting down particulate matter, grease etc. and decompose particulate matter, grease etc. that form littleer piece in the pivot rotation, compare in big particulate matter, grease, and little particulate matter, grease are more easily by heating element pyrolysis.

In some embodiments, an area of the filter element in a radial direction of the air inlet is greater than or equal to an area of the air inlet.

So, the air current that gets into first inner chamber from the air intake can all pass through filter element and filtered by filter element, guarantees filterable effect to follow-up heating element can fully carry out pyrolysis to impurity such as particulate matter, grease in the air current.

In certain embodiments, the filter element surface is coated with a catalytic coating.

Therefore, the grease in the airflow air duct is decomposed by the catalytic coating, and the decomposition of the grease in the airflow air duct is accelerated.

In some embodiments, the fan assembly further comprises a fan blade, and the heating assembly comprises a plurality of heating tubes disposed on the periphery of the fan blade.

So, alright in order to realize carrying out pyrolysis to particulate matter, grease etc. in the air current, heat simultaneously.

In some embodiments, the operating temperature of the heat generating tube is greater than or equal to 200 ℃ and less than or equal to 600 ℃.

In this way, when the operating temperature of the heating tube is 200 ℃ to 600 ℃, the particles, grease and the like in the air flow can be sufficiently decomposed.

In certain embodiments, the kitchen appliance comprises a steam oven or an oven.

So, steam ager or oven can be provided with the fan subassembly that is used for forming the air current wind channel in the cavity and set up heating element in air current wind channel route to realize the decomposition to the particulate matter in the air current, realize simultaneously can the circulation heating to the gas in the cavity.

Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a kitchen appliance according to an embodiment of the present application;

fig. 2 is a schematic view of a partition of the kitchen appliance of fig. 1.

Description of the main element symbols: the air conditioner comprises a kitchen appliance 100, a cavity 10, a rear side plate 12, a front side plate 14, a first inner cavity 16, a second inner cavity 18, a fan assembly 20, a fan 22, a fan body 222, a rotating shaft 224, fan blades 24, a connecting part 242, fan blades 244, a heating assembly 30, an air flow duct 40, a partition plate 50, an air inlet 52, an air outlet 54 and a filter element 60.

Detailed Description

Embodiments of the present application will be further described below with reference to the accompanying drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present application described below in conjunction with the accompanying drawings are exemplary and are only for the purpose of explaining the embodiments of the present application, and are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present embodiment provides a kitchen appliance 100, wherein the kitchen appliance 100 includes a cavity 10, a fan assembly 20 and a heating assembly 30. The cavity 10 is used for containing food to be cooked. The fan assembly 20 is disposed in the chamber 10 to form an air flow duct 40 in the chamber 10 in an operating state. The heating assembly 30 is disposed in the path of the air flow duct 40 for decomposing the soot particles in the air flow duct 40 generated by the food during cooking.

Kitchen appliance 100 of the embodiment of this application sets up heating element 30 through being provided with fan subassembly 20 that is used for forming air current wind channel 40 and setting up in air current wind channel 40 route in cavity 10, fan subassembly 20 can be so that the oil smoke granule that produces by the edible material in culinary art in cavity 10 forms the air current circulation, and heat the decomposition to the oil smoke granule through heating element 30 on the circulation route, particulate matter in the oil smoke that will reduce food culinary art in-process production effectively, the oil smoke granule content of emission outside the cavity has been reduced, user experience is improved.

The kitchen appliance 100 may be an oven, a steam oven, etc., and the embodiment of the present application is described with an oven as an example.

Referring to fig. 1, the kitchen appliance 100 includes a cavity 10, a fan assembly 20, and a heating assembly 30.

The chamber 10 is used for containing food to be cooked, and the fan assembly 20 can be installed on any side surface of the chamber 10. The cavity 10 may have a rectangular parallelepiped structure, a circular structure, an irregular shape, etc., and the shape of the cavity 10 is not limited in this application. For convenience of explanation, the present application will be described with reference to the cavity 10 having a rectangular parallelepiped structure.

The fan assembly 20 is disposed in the chamber 10 to form an air flow duct 40 in the chamber 10 in an operating state. For convenience of explanation, the present embodiment will be described with the fan assembly 20 mounted on the rear side plate 12, the front side plate 14 being opposed to the rear side plate 12, and the door panel being provided on the front side plate 14. In other embodiments, the fan assembly 20 may also be mounted on other side plates, for example, any one of the front side plate 14, the rear side plate 12, the top plate, the left side plate and the right side plate, or even a mounting seat may be mounted on an included angle formed by any two or three adjacent ones of the front side plate 14, the rear side plate 12, the bottom plate, the top plate, the left side plate and the right side plate.

Specifically, the fan assembly 20 includes a fan 22 and fan blades 24.

The fan 22 includes a fan body 222 and a rotating shaft 224 extending from the fan body 222, the fan body 222 is installed in the middle of the outer side surface of the rear side plate 12, the rotating shaft 224 penetrates through the rear side plate 12, the free end of the rotating shaft 224 is located in the cavity 10, and the rotating shaft 224 is perpendicular to the plate surface of the rear side plate 12. In other embodiments, the rotation shaft 224 may be inclined at an angle with respect to the rear side, such as 80 degrees, 75 degrees, 60 degrees, etc. In some embodiments, the fan 22 may also be mounted at other locations on the rear side panel 12, such as where the fan 22 is disposed at a periphery of the rear side panel 12. In other embodiments, the blower 22 may be mounted entirely within the chamber 10.

The fan blade 24 includes a connecting portion 242 and a plurality of fan blades 244, the connecting portion 242 is installed on the rotating shaft 224, the plurality of fan blades 244 are installed on the connecting portion 242 and are uniformly arranged around the rotating center of the rotating shaft 224, and the plurality of fan blades 244 are all located on the same circumference. The number of the fan blades 244 may be 2, 3, 4, 5, 6, 7 or more, and may be set as required, and the number of the fan blades 244 in this embodiment is 6. The connecting portion 242 may be a disk, a connecting piece, a connecting rod, or the like.

In some embodiments, the connecting portion 242 is a disk, the surface of the disk is perpendicular to the rotating shaft 224, and the 6 blades 244 are uniformly disposed on the periphery of the disk. When the fan 22 works, the rotating shaft 224 drives the disc (the connecting portion 242) to rotate, the plurality of fan blades 244 rotate around the rotation center of the rotating shaft 224 on the same circumference, and the air in the cavity 10 moves toward the connecting portion 242, so that the plurality of fan blades 244 surround to form a negative pressure space, the pressure in the negative pressure space is greater than the pressure outside the fan blades 244, so that the airflow flows from the negative pressure space to the outside of the fan blades 244, and the airflow duct 40 is formed under the action of the side wall of the cavity 10.

In other embodiments, the connecting portion 242 is a plurality of connecting pieces, one end of each connecting piece away from the rotating shaft 224 is correspondingly provided with a fan 244, and each connecting piece is inclined at a certain angle and driven by the rotating shaft 224 to move air toward the connecting piece, so as to further enhance the airflow formed in the cavity 10, or the connecting piece is used as a fan.

Heating element 30 sets up on the route of air current wind channel 40, and under the condition of air current through heating element 30, impurity such as grease, particulate matter in the air current is by pyrolysis, and heating element 30 can also heat the gas in the air current simultaneously, makes the temperature of each part of cavity 10 the same basically along air current wind channel 40 circulation flow at the air current to the food that makes the culinary art can the thermally equivalent. The heating assembly 30 may be positioned anywhere along the path of the air flow duct 40. The heating assembly 30 may be a heating resistance wire, a heating network, a heating tube 32, or the like.

In some embodiments, the heating assembly 30 includes a plurality of heating pipes 32, and the heating pipes 32 may have 2, 3, 4, 5, 6, 12 or more heating pipes, and the application does not limit the number of the heating pipes 32, and may be set according to actual needs. In some examples, two heating tubes 32 are formed in one group, two groups of heating tubes 32 are disposed in parallel and opposite to each other outside the fan blade 244, and the temperature of the heating tubes 32 is [200 ℃ to 600 ℃ ], for example, the temperature of the heating tubes 32 may be 200 ℃, 250 ℃, 280 ℃, 300 ℃, 350 ℃, 400 ℃, 450 ℃, 500 ℃, 550 ℃, 600 ℃, and so on. In other examples, 4 heating pipes are surrounded to form a square structure, and the fan blades 24 are positioned in the center of the square structure. In other embodiments, the heating element 30 is a resistance wire that surrounds the periphery of the fan blade 24 and forms a heating coil corresponding to the circumference of the fan blade 24.

When the kitchen appliance 100 is in operation, the rotation of the rotating shaft 224 of the fan 22 drives the fan blades 244 to rotate, so that the airflow in the cavity 10 flows towards the fan assembly 20, and under the action of the rear side plate 12 and the fan blades 24, the airflow is diffused to the periphery along the rotating center of the rotating shaft 224 and flows to the heating assembly 30; under the effect of the side wall of the cavity 10, the airflow after pyrolysis and heating flows along the side wall of the cavity 10 to form the airflow duct 40, and finally, the airflow returns to the connecting part 242, so that the air in the cavity 10 can be circulated and decomposed, and harmful substances in the airflow are reduced.

Referring to fig. 1 and 2, in some embodiments, the kitchen appliance 100 further includes a partition plate 50 for partitioning the cavity 10 into a first inner cavity 16 and a second inner cavity 18, and the partition plate 50 is provided with an air inlet 52 and an air outlet 54 for communicating the first inner cavity 16 and the second inner cavity 18

Specifically, the partition plate 50 is opposite to the rotating shaft 224, the partition plate 50 is perpendicular to the rotating shaft 224, and the side edge of the partition plate 50 is connected with the inner wall of the chamber 10. The partition 50 divides the chamber 10 into the first chamber 14 and the second chamber 18, and the space of the first chamber 14 is smaller than that of the second chamber 18, so that the air flow can be made to pass through the heating assembly 30 as much as possible. The fan blade 24 is located in the first cavity 14, and the second inner cavity 18 is used for cooking food. In other embodiments, the partition 50 may not be perpendicular to the rotation axis 224, and the partition 50 and the rotation axis 224 form an included angle smaller than 90 degrees, such as 85 degrees, 75 degrees, 70 degrees, 60 degrees, and the like. The partition 50 is used to regulate the airflow duct 40, so that the airflow in the airflow duct 40 is not scattered too much, and the airflow in the airflow duct 40 can pass through the heating assembly 30.

The middle portion of the partition 50 is provided with an air inlet 52 corresponding to the fan assembly 20, the air inlet 52 is located on the airflow duct 40, and the air inlet 52 and the rotating shaft 224 are coaxially arranged, so that the airflow in the airflow duct 40 can be rapidly converged onto the fan assembly 20. The area of the air inlet 52 is smaller than or equal to the area enclosed by the plurality of blades 244, or the area enclosed by the plurality of blades 244 is larger than or equal to the area of the air inlet 52, so that the airflow in the first cavity 14 is not leaked out of the air inlet 52.

The partition 50 is provided with a plurality of air outlets 54 at the periphery thereof, and the plurality of air outlets 54 are arranged around the periphery of the air inlet 52 and are rotationally symmetrical with respect to the center of the air inlet 52 and are located on the airflow duct 40. The plurality of air outlets 54 and the air inlets 52 form a space therebetween, and the plurality of fan blades 244 surround the circumference formed by the plurality of air outlets 54 and the air inlets 52 to form a space therebetween. The number of the air outlets 54 may be 2, 3, 4, 5, 6 or more, the number of the air outlets 54 may be set as required, in this embodiment, the number of the air outlets 54 is 4, and each diagonal of the rear side plate 12 is correspondingly provided with one air outlet 54. The plurality of air outlets 54 are disposed around the partition plate 50 to facilitate the heated air flow to be rapidly diffused to each portion of the chamber 10, so that the temperatures of each portion of the chamber 10 are substantially the same. In other embodiments, the position of the air outlet 54 may be set arbitrarily.

Further, in some examples, there is only one air inlet 52, and the area of the air inlet 52 is slightly smaller than the area enclosed by the plurality of blades 244. In other examples, a plurality of the intake openings 52 may be combined to form an intake area, and the center of the intake area corresponds to the center of the rotating shaft 224, or the intake opening 52 may include a plurality of smaller intake openings 52. The arrangement of the air outlet 54 can be referred to the arrangement of the air inlet 52, and will not be described in detail.

Referring to fig. 1, in some embodiments, the kitchen appliance 100 further includes a filter element 60, the filter element 60 is mounted at a free end of the rotating shaft 224, and the filter element 60 can be rotated by the rotating shaft 224 when the fan assembly 20 is in an operating state.

Specifically, the filter element 60 is disposed on the free end of the rotating shaft 224 and located between the fan blade 24 and the partition plate 50, and the rotating area of the filter element 60 in the radial direction of the air inlet 52 is greater than or equal to the area of the air inlet 52, so as to ensure that the air flow entering the air inlet 52 can be completely filtered by the filter element 60. The filter element 60 is made of a filter screen, a wire mesh, or the like made of a heat conductive material such as a metal material, such as a stainless steel wire mesh, nickel foam, copper foam, or the like, or a non-metal material, such as carbide, sulfide, phenolic aldehyde, asbestos, quartz, or the like. Grease, particles and the like passing through the filter element 60 are rotationally cut and decomposed by the driving of the rotating shaft 224. The heat emitted from the heating assembly 30 is radiated to the filter element 60 made of metal, and the heat absorbed by the filter element 60 can decompose the impurities in the air flow at a high temperature to some extent. In other embodiments, the filter element 60 may be disposed between the connection portion 242 and the rear side plate 12.

In some embodiments, the surface of the filter element 60 is coated with a catalytic coating (not shown) that breaks down grease particles, thereby allowing the soot passing through the filter element 60 to be quickly broken down and more quickly cleanse the airflow duct 40 of grease. The heat absorbed by the filter element 60 may also promote the decomposition of grease by the catalytic coating to some extent. When the temperature of the heating tube 32 is 200-600 ℃, the temperature of the filter element 60 enables the catalytic coating to achieve the optimal catalytic effect.

In some embodiments, filter element 60 is fixedly disposed between fan blades 24 and partition 50, and does not rotate with shaft 224. In other embodiments, the filter element 60 is integrated with the partition 50, or the partition 50 is integrally formed, and the filter element 60 is formed at a position corresponding to the fan assembly 20 and covered with the catalytic coating.

When the kitchen appliance 100 works, the second inner cavity 18 cooks food, impurities such as oil smoke and particles can be generated in the food cooking process, the fan 22 is started to enable air in the second inner cavity 18 to form the airflow duct 40 under the action of the fan 22, impurities such as grease and particles generated in the food cooking process enter the first cavity 14 from the air inlet 52 along with airflow in the airflow duct 40, and meanwhile, grease particles in the airflow duct 40 are catalytically decomposed and particles are cut and decomposed under the action of the filter element 60; secondly, under the action of the fan blades 244 and the rear side plate 12, the airflow is guided to the heating assembly 30, and the heating assembly 30 decomposes the airflow at high temperature and heats the air at the same time; then, the filtered and pyrolyzed airflow returns to the second inner cavity 18 through the air outlet 54, and the airflow of the airflow duct 40 is redirected to the air inlet 52 by the side wall of the chamber 10 and the blower 22, so as to form a circulation, so that the temperatures of all parts in the chamber 10 are almost the same.

In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims

1. A kitchen appliance, comprising:

the cavity is used for containing food to be cooked;

2. The kitchen appliance according to claim 1, further comprising a partition plate dividing the cavity into a first inner cavity and a second inner cavity, wherein the partition plate is provided with an air inlet and an air outlet communicating the first inner cavity and the second inner cavity.

3. The kitchen appliance of claim 2, wherein the fan assembly corresponds to the air inlet.

4. The kitchen appliance of claim 2, further comprising a filter element disposed between the fan assembly and the air inlet.

5. The kitchen appliance of claim 4, wherein the fan assembly further comprises a shaft, the filter element being mounted at a free end of the shaft, the filter element being rotatable by the shaft when the fan assembly is in operation.

6. The kitchen appliance according to claim 4, wherein the area of the filter element in the radial direction of the air inlet opening is greater than or equal to the area of the air inlet opening.

7. The kitchen appliance according to claim 4, characterized in that the surface of the filter element is coated with a catalytic coating.

8. The kitchen appliance of claim 1, wherein the fan assembly further comprises a fan blade, and the heating assembly comprises a plurality of heat pipes disposed about a periphery of the fan blade.

9. The kitchen appliance of claim 9, wherein the operating temperature of the heat generating tube is greater than or equal to 200 ℃ and less than or equal to 600 ℃.

10. The kitchen appliance of claim 1, wherein the kitchen appliance comprises a steam oven or an oven.