CN112956913B

CN112956913B - Heating assembly and cooking appliance

Info

Publication number: CN112956913B
Application number: CN201911273028.1A
Authority: CN
Inventors: 谢川川; 张冀喆; 薛永升
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2022-03-01
Anticipated expiration: 2039-12-12
Also published as: CN112956913A

Abstract

The invention discloses a heating assembly and a cooking electric appliance. The second heating pipe is rotatably arranged on the first heating pipe, a second air inlet channel, a second ventilation channel and a plurality of second air nozzles are formed in the second heating pipe, and the second air inlet channel is communicated with the first ventilation channel and the second air nozzles. Cooking device includes the shell, and the shell is formed with accepts the cavity, and above-mentioned heating element sets up in accepting the cavity. The first heating pipe is communicated with the second heating pipe, so that the gas in one of the first heating pipe and the second heating pipe can flow to the other heating pipe conveniently, the structure is simple, and the realization is easy.

Description

Heating assembly and cooking appliance

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a heating assembly and a cooking electrical appliance.

Background

With the diversification of diets and the introduction of foreign cooking methods, ovens are more and more common in kitchens of people, and a conventional oven comprises a cavity and a heating pipe, wherein the heating pipe is used for raising the temperature in the cavity, so that the process of baking food is realized. However, the temperature in the cavity is heated unevenly easily, so that the food in the cavity can be heated unevenly, the food in the cavity is not heated or baked easily, and the user experience is not high.

Disclosure of Invention

The invention provides a heating assembly and an electric cooking appliance.

An embodiment of the present invention provides a heating assembly for a cooking appliance, the heating assembly including:

the first heating pipe is used for rotating around a first axis and a preset space, the first heating pipe is formed with a first air inlet channel, a first ventilation channel and a plurality of first air injection ports, the first ventilation channel is communicated with the first air inlet channel and the plurality of first air injection ports, and the plurality of first air injection ports are distributed along the circumferential direction of the preset space; and

the second heating pipe is rotatably arranged on the first heating pipe and used for rotating around a second axis and surrounding the preset space, a second air inlet channel, a second air through channel and a plurality of second air injection ports are formed in the second heating pipe and arranged along the circumferential direction of the preset space, and the second air inlet channel is communicated with the first air through channel and the second air injection ports so that the gas in the first air through channel flows to the second air through channel.

According to the heating assembly provided by the embodiment of the invention, food can be placed in the preset space, the first heating pipe and the second heating pipe can rotate around the preset space, and the first air injection ports and the second air injection ports are arranged along the circumferential direction of the preset space, so that the food can be heated more uniformly, and the heating assembly is beneficial to heating or baking the food. In addition, the first heating pipe is communicated with the second heating pipe, so that the gas in one of the first heating pipe and the second heating pipe can flow to the other heating pipe conveniently, the structure is simple, and the realization is easy.

In certain embodiments, the first vent passage includes a first gas-dividing passage in communication with the first gas injection port and a second gas-dividing passage in communication with the second gas-intake passage spaced apart from the first gas-dividing passage.

In certain embodiments, the first heating tube includes an outer tube formed with the first vent passage and a divider plate disposed within the outer tube that separates the first vent passage to define the first and second gas-dividing passages with the outer tube.

In some embodiments, the first heating pipe further includes a closing plate that connects the partition plate and the outer pipe and closes both ends of the second gas distribution passage, and the closing plate is disposed near the second gas inlet passage.

In some embodiments, the second heating pipe includes a gas injection section and an extension section connected to the gas injection section, the gas injection section is formed with the second gas passage and the second gas injection port, the extension section is formed with the second gas intake passage, and the extension section is rotatably disposed with respect to the first heating pipe.

In some embodiments, the heating assembly comprises a bearing, an outer ring of the bearing is fixed on the first heating pipe, and an inner ring of the bearing is fixedly connected with the extension section.

An embodiment of the present invention provides a cooking appliance, including:

a housing formed with a receiving chamber; and

the heating assembly of any preceding claim, the heating assembly being disposed within the containment chamber.

According to the cooking electric appliance provided by the embodiment of the invention, food can be placed in the preset space, the first heating pipe and the second heating pipe can rotate around the preset space, and the first air injection ports and the second air injection ports are arranged along the circumferential direction of the preset space, so that the food can be heated more uniformly, and the heating or baking of the food is facilitated. In addition, the first heating pipe is communicated with the second heating pipe, so that the gas in one of the first heating pipe and the second heating pipe can flow to the other heating pipe conveniently, the structure is simple, and the realization is easy.

In some embodiments, the cooking appliance includes a first driving device connected to the first heating pipe, and the first driving device is configured to drive the first heating pipe to rotate around the first axis.

In certain embodiments, the first driving device comprises a first motor, the first heating tube is connected to the first motor, and the first motor is configured to drive the first heating tube to rotate about the first axis.

In some embodiments, the cooking appliance includes a second driving device, the second driving device is connected to the second heating pipe, and the second driving device is configured to drive the second heating pipe to rotate around the second axis.

In some embodiments, the second driving device comprises a second motor, the second heating pipe is connected with the second motor, and the second motor is used for driving the second heating pipe to rotate around the second axis.

In some embodiments, the cooking appliance includes a heating device in communication with the first heating tube, the heating device configured to deliver heated gas to the first heating tube.

In some embodiments, the cooking appliance comprises a gas delivery device for creating a gas flow to deliver heated gas into the first heating tube.

In some embodiments, the housing includes a first case formed with the receiving chamber and a second case connected to the first case, the second case being formed with a receiving space in which the heating device and the air supply device are both located.

In some embodiments, the cooking appliance includes a partition plate partitioning the receiving space and the receiving chamber, the partition plate is formed with a through hole communicating the receiving space and the receiving chamber, and the air supply device is configured to suck air in the receiving chamber through the through hole.

In some embodiments, the cooking appliance includes a screen positioned at the through hole.

In some embodiments, the cooking appliance further includes a bearing member for bearing the cooked object, the bearing member is disposed through the first heating tube and detachably connected to the housing, and the first heating tube is rotatable around the bearing member.

Additional aspects and advantages of the invention 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 the invention.

Drawings

The above and/or additional aspects and advantages of the present invention 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 sectional view of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a further cross-sectional schematic view of the cooking appliance of the embodiment of the present invention;

FIG. 3 is an enlarged schematic view of section I of FIG. 2;

FIG. 4 is a schematic structural view of a heating assembly according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a heating assembly according to an embodiment of the invention;

fig. 6 is an exploded schematic view of a housing of the cooking appliance of the embodiment of the present invention;

fig. 7 is an exploded schematic view of a carrier of the cooking appliance according to the embodiment of the present invention;

fig. 8 is a further sectional schematic view of the cooking appliance of the embodiment of the present invention;

fig. 9 is still another sectional view of the cooking appliance in the embodiment of the present invention;

FIG. 10 is an enlarged schematic view of section II of FIG. 9;

fig. 11 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;

fig. 12 is an exploded schematic view of a second heating pipe and a fourth gear of the cooking appliance according to the embodiment of the present invention;

fig. 13 is a further structural schematic view of the cooking appliance according to the embodiment of the present invention;

fig. 14 is a further structural schematic view of the cooking appliance according to the embodiment of the present invention;

fig. 15 is a further sectional schematic view of the cooking appliance of the embodiment of the present invention;

fig. 16 is still another sectional view schematically illustrating a cooking appliance according to an embodiment of the present invention.

Description of the main element symbols:

the cooking appliance 100, the housing 101, the first shell 102, the upper shell 1021, the protrusion 1022, the lower shell 1023, the second shell 103, the filter screen 105, the through hole 1051, the carrier 106, the body 1061, the connecting rod 10611, the groove 10612, the first piece 1062, the second piece 1063, the predetermined space 1064, the heating device 107, the air-feeding device 108, the accommodating space 109, the accommodating chamber 110, the first driving device 111, the second driving device 112, the power device 113, the motor 1131, the transmission assembly 114, the first gear 1141, the second gear 1142, the rotating shaft 115, the rotating structure 116, the third gear 1161, the fourth gear 1162, the heating assembly 10, the first heating pipe 12, the first air inlet channel 121, the first air vent channel 122, the first air vent channel 1221, the second air vent channel 1222, the first air jet 123, the outer pipe 124, the partition plate 125, the closing plate 126, the first opening 127, the second opening 128, the third opening 129, the fourth opening 130, the second heating pipe 14, the second opening 130, the heating pipe 14, the second opening, A second air intake channel 141, a second air passage 142, a second air injection port 143, an air injection section 144, an extension section 145, and a bearing 146.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the embodiment of the present invention provides a heating assembly 10, the heating assembly 10 is used for a cooking appliance 100, the heating assembly 10 includes a first heating pipe 12 and a second heating pipe 14, the first heating pipe 12 is used for rotating around a first axis P and a predetermined space 1064, and the first heating pipe 12 is formed with a first air inlet channel 121, a first air vent channel 122 and a plurality of first air outlets 123. The first ventilation channel 122 is communicated with the first air inlet channel 121 and the plurality of first air injection ports 123, and the plurality of first air injection ports 123 are arranged along the circumferential direction of the preset space 1064.

The second heating pipe 14 is rotatably provided on the first heating pipe 12. The second heating pipe 14 is adapted to rotate about the second axis Y and around the preset space 1064. The second heating pipe 14 is formed with a second air intake passage 141, a second air vent passage 142, and a plurality of second air injection ports 143. The plurality of second gas injection ports 143 are arranged along a circumferential direction of the preset space 1064. The second gas inlet channel 141 is connected to the first gas vent channel 122 and the plurality of second gas nozzles 143, so that the gas in the first gas vent channel 122 flows to the second gas vent channel 142.

According to the heating assembly 10 of the embodiment of the invention, food can be placed in the preset space 1064, the first heating pipe 12 and the second heating pipe 14 can rotate around the preset space 1064, and the first air injection ports 123 and the second air injection ports 143 are all arranged along the circumferential direction of the preset space 1064, so that the food can be heated more uniformly, and the heating assembly is beneficial to heating or baking the food. In addition, the first heating pipe 12 is communicated with the second heating pipe 14, so that the gas in one of the first heating pipe 12 and the second heating pipe 14 can flow to the other heating pipe conveniently, the structure is simple, and the realization is easy.

In this embodiment, hot gas enters the first ventilation channel 122 through the first air inlet channel 121, and the first ventilation channel 122 is communicated with the plurality of first air nozzles 123, so that the hot gas in the first ventilation channel 122 can be ejected from the first air nozzles 123, because the first air nozzles 123 are arranged along the axial direction of the preset space 1064, the gas ejected from the first air nozzles 123 can move towards the preset space 1064, and under the condition that the first heating pipe 12 rotates, the gas ejected from the first air nozzles 123 can enter the preset space 1064 along each direction of the preset space 1064, so that each direction of the preset space 1064 can be heated to increase the temperature, and therefore the preset space 1064 is heated more uniformly.

In addition, referring to fig. 2 to 5, the second air inlet channel 141 is communicated with the first air inlet channel 122 and the plurality of second air outlets 143, so that the hot air in the first air inlet channel 122 can enter the second air inlet channel 141 and then be ejected from the second air outlets 143, because the second air outlets 143 are arranged along the axial direction of the preset space 1064, the air ejected from the second air outlets 143 can move toward the preset space 1064, and under the condition that the second heating pipe 14 rotates, the air ejected from the second air outlets 143 can enter the preset space 1064 along each direction of the preset space 1064, so that each direction of the preset space 1064 can be heated and heated, and the preset space 1064 is heated more uniformly. It can be known from the foregoing that, the hot gas homoenergetic of first jet-propelled mouth 123 and second jet-propelled mouth 143 is enough to get into preset space 1064 from the all directions of presetting space 1064 to make preset space 1064 be heated evenly, and then make the food that needs the heating in the preset space 1064 be heated more evenly, prevent that the inhomogeneous condition of food heating from appearing taking place, be favorable to heating or toasting food.

Further, it can be seen from the above that the first ventilation channel 122 is communicated with the second air inlet channel 141 and the second air outlet 143, so that the hot air entering the first ventilation channel 122 from the first air inlet channel 121 can flow to the second ventilation channel 142, and therefore, the hot air does not need to be delivered to the second ventilation channel 142 by other devices, the structure is simple, the implementation is easy, the manufacturing cost of the cooking appliance 100 can be reduced, and the mass production of the cooking appliance 100 is facilitated.

The first heating pipe 12 and the second heating pipe 14 may be made of stainless steel. The stainless steel has the characteristics of strong corrosion resistance and high temperature resistance, and the first heating pipe 12 and the second heating pipe 14 are made of stainless steel, which is beneficial to prolonging the service life of the first heating pipe 12 and the second heating pipe 14. Of course, in other embodiments, the first heating tube 12 and the second heating tube 14 may be made of other materials. For example, in one example, the first heating tube 12 and the second heating tube 14 may also be made of a metal material such as iron, aluminum, etc. The specific material of the first heating pipe 12 and the second heating pipe 14 is not limited herein.

Further, in the present embodiment, the first heating pipe 12 and the second heating pipe 14 are made of the same material. In other embodiments, the first heating tube 12 and the second heating tube 14 may also be made of different materials. For example, in other examples, the first heating tube 12 may be made of stainless steel and the second heating tube 14 may be made of iron. It is not limited to whether the first heating pipe 12 and the second heating pipe 14 are made of the same material.

It is understood that the first and

second gas ports

123 and 143 may be circular, triangular, square, or the like. Of course, the first and second

gas injection ports

123 and 143 may be not only the above-described three shapes. The specific shapes of the first and second

gas injection ports

123 and 143 may be set according to various situations. The specific shapes of the first and second

gas injection ports

123 and 143 are not limited herein. It is noted that the shapes of the first and second

gas injection ports

123 and 143 may also be a combination of the above three shapes or other shapes. And are not limited herein.

Further, the distribution pattern of the first and second

gas injection ports

123 and 143 may be set according to various situations. For example, in one example, the pitch of adjacent first gas injection ports 123 is the same, and the pitch of adjacent second gas injection ports 143 is the same. For another example, in yet another example, the pitch of the adjacent two first gas injection ports 123 is different, and the pitch of the adjacent two second gas injection ports 143 is the same. For another example, in another example, the pitch of two adjacent first gas injection ports 123 is different, and the pitch of two adjacent second gas injection ports 143 is different. The distribution of the first gas injection ports 123 and the second gas injection ports 143 is not limited herein.

Wherein a distance of a pitch of adjacent two first gas injection ports 123 and a distance of a pitch of adjacent two second gas injection ports 143 may be set according to different situations. And are not limited herein.

Referring to fig. 2 and 3, in some embodiments, the first ventilation channel 122 includes a first air distribution channel 1221 and a second air distribution channel 1222 spaced apart from the first air distribution channel 1221, the first air distribution channel 1221 is in communication with the first air injection port 123, and the second air distribution channel 1222 is in communication with the second air injection channel 141.

First gas distribution passage 1221 and second gas distribution passage 1222 are spaced apart so that the hot gas in first gas distribution passage 1221 and second gas distribution passage 1222 does not interfere with each other, thereby facilitating the flow of hot gas in first gas distribution passage 1221 and second gas distribution passage 1222, and further making the hot gas ejected from first gas nozzle 123 and second gas nozzle 143 more uniform.

Referring to fig. 2 and 3, in some embodiments, the second heating pipe 14 includes a gas injection section 144 and an extension section 145 connected to the gas injection section 144, the gas injection section 144 is formed with a second gas passage 142 and a second gas injection opening 143, the extension section 145 is formed with a second gas inlet passage 141, and the extension section 145 is rotatably disposed with respect to the first heating pipe 12.

The provision of the extension 145 facilitates the rotational connection of the second heating tube 14 to the first heating tube 12. In addition, the extension 145 can be inserted into the first heating pipe 12, so that the connection between the second heating pipe 14 and the first heating pipe 12 is more stable, and the second heating pipe 14 is prevented from being separated from the first heating pipe 12, thereby ensuring the normal operation of the heating assembly 10.

Referring again to fig. 2 and 3, in some embodiments, the heating assembly 10 includes a bearing 146, an outer ring of the bearing 146 is fixed on the first heating pipe 12, and an inner ring of the bearing 146 is fixedly connected with the extension 145.

The second heating pipe 14 can rotate relative to the first heating pipe 12 through the arrangement of the bearing 146, and the structure is simple and easy to realize.

Further, the bearing 146 may be a rolling bearing, a deep groove ball bearing, a thrust roller bearing, or the like. The particular type of bearing 146 may be selected based on different circumstances. The specific type of bearing 146 is not limited herein.

Referring to fig. 1 to 3, in some embodiments, the first heating pipe 12 includes an outer pipe 124 and a partition plate 125 disposed inside the outer pipe 124, the outer pipe 124 is formed with a first vent passage 122, and the partition plate 125 partitions the first vent passage 122 to define a first branch passage 1221 and a second branch passage 1222 with the outer pipe 124.

The partition plate 125 is disposed in the outer tube 124 to space the first vent passage 122 and define a first branch passage 1221 and a second branch passage 1222 with the outer tube 124, and the partition plate 125 can space the first branch passage 1221 from the second branch passage 1222 to prevent the hot gas in the first branch passage 1221 from flowing to the second branch passage 1222, thereby facilitating the flow of the hot gas in the first branch passage 1221 and the second branch passage 1222.

In the present embodiment, the partition plate 125 may be made of stainless steel as well. Of course, the partition plate 125 may be made of not only stainless steel. Specific materials of the partition plate 125 may be set according to different situations. The specific material of the partition plate 125 is not limited herein.

Referring to fig. 1 to 3, in some embodiments, the first heating pipe 12 further includes a closing plate 126, the closing plate 126 connects the partition plate 125 and the outer pipe 124 and closes both ends of the second branch gas passage 1222, and the closing plate 126 is disposed near the second gas inlet passage 141.

The closing plate 126 is disposed near the second air intake passage 141, and the closing plate 126 can close both ends of the second air intake passage 1222, so that the hot air of the second air intake passage 1222 can be blocked by the closing plate 126 during the flowing of the hot air to the second air intake passage 141, so that the hot air can flow into the second air intake passage 141 better and more sufficiently.

In the present embodiment, the second heating duct 14 is formed with the extension section 145, the extension section 145 is formed with the second air intake passage 141, the first heating duct 12 is formed with the first opening 127, the bearing 146 is disposed at the first opening 127, and the extension section 145 partially passes through the first opening 127 and partially passes through the partition plate 125 so that the second air intake passage 141 communicates with the second air dividing passage 1222. In addition, the extension 145 can rotate relative to the partition 125.

Referring to fig. 1 and 2, an embodiment of the present invention provides an electric cooking appliance 100, wherein the electric cooking appliance 100 includes a housing 101 and a heating assembly 10 of any one of the above embodiments. The housing 101 is formed with a housing chamber 110. The heating assembly 10 is disposed in the receiving chamber 110.

According to the cooking appliance 100 of the embodiment of the invention, food can be placed in the preset space 1064, the first heating pipe 12 and the second heating pipe 14 can rotate around the preset space 1064, and the first air injection port 123 and the second air injection port 143 are both arranged along the circumferential direction of the preset space 1064, so that the food can be heated more uniformly, and the heating or baking of the food is facilitated. In addition, the first heating pipe 12 is communicated with the second heating pipe 14, so that the gas in one of the heating pipes of the first heating pipe 12 and the second heating pipe 14 can flow to the other heating pipe conveniently, the structure is simple, and the realization is easy.

The housing 101 may be made of stainless steel. Stainless steel has the advantages of high hardness and high temperature resistance. This can prevent the case 101 from being damaged by high-temperature gas. The life span of the casing 101 is increased. Thereby increasing the lifespan of the cooking appliance 100. It is understood that the housing 101 may be made of stainless steel, not only. The specific material of the housing 101 may be set according to different situations. For example, in other embodiments, the housing 101 may also be made of iron. The specific material of the housing 101 is not limited herein.

It is understood that the predetermined space 1064 is an inner space of the housing 101, and the predetermined space 1064 may be a sphere or a cube. The specific shape of the predetermined space 1064 is not limited herein.

In this embodiment, the movement tracks of the first heating pipe 12 and the second heating pipe 14 can envelop the preset space 1064, so that hot air can be uniformly sprayed to the preset space 1064, and then the preset space 1064 can be uniformly heated, so that the food to be heated in the preset space 1064 is heated more uniformly, the situation that the food is not uniformly heated is prevented, and the food is favorably heated or baked.

The fact that the movement tracks of the first heating pipe 12 and the second heating pipe 14 envelop the preset space 1064 means that the first heating pipe 12 and the second heating pipe 14 rotate around the outer periphery of the preset space 1064, and the space formed by the first heating pipe 12 and the second heating pipe 14 in the rotating condition wraps the preset space 1064, that is, the preset space 1064 is located inside the space formed by the first heating pipe 12 and the second heating pipe 14 in the rotating condition.

The movement trajectories of the first heating pipe 12 and the second heating pipe 14 are described below as enveloping the presetting space 1064:

in this embodiment, the first heating pipe 12 can rotate around the first axis P, the second heating pipe 14 can rotate around the second axis Y, and the first axis P is perpendicular to the second axis Y, so that, under the condition that the first heating pipe 12 and the second heating pipe 14 rotate, the first heating pipe 12 and the second heating pipe 14 are matched to enable heat to be uniformly and sufficiently dissipated to the preset space 1064, and further enable the preset space 1064 to be uniformly heated. Of course, in other embodiments, the first axis P may also be at an angle, such as an acute angle or an obtuse angle, with the second axis Y. That is, in other embodiments, the first axis P and the second axis Y may not be perpendicular. It is not limited whether the first axis P and the second axis Y are perpendicular.

In the present embodiment, the number of the first heating pipes 12 is 1, the first heating pipes 12 are circular rings, the number of the second heating pipes 14 is 2, and the 2 second heating pipes 14 are semicircular rings. In such an embodiment, 2 second heating pipes 14 are located in the annular space of the first heating pipe 12 and are arranged opposite to each other, the 2 second heating pipes 14 having the same diameter. Since the 2 second heating pipes 14 are located in the annular space of the first heating pipe 12, the predetermined space 1064 is located between the 2 second heating pipes 14, that is to say, the predetermined space 1064 can be enveloped by the movement trajectories of the first heating pipe 12 and the second heating pipe 14 when the first heating pipe 12 and the second heating pipe 14 are rotated. In this way, the heat generated by the first and

second heating pipes

12 and 14 can be uniformly emitted to the predetermined space 1064, so that the predetermined space 1064 is uniformly heated.

Of course, in other embodiments, 2 second heating pipes 14 may also be located outside the annular space of the first heating pipe 12, or one of the 2 second heating pipes 14 is located inside the annular space of the first heating pipe 12 and another one of the 2 second heating pipes 14 is located outside the annular space of the first heating pipe 12. The predetermined space 1064 can be enveloped by the movement trajectories of the first heating pipe 12 and the second heating pipe 14 only when the first heating pipe 12 and the second heating pipe 14 rotate. The specific positions of the second heating pipe 14 and the first heating pipe 12 are not limited herein.

It is understood that the number of the first heating pipes 12 may be not only 1, but also the number of the second heating pipes 14 may be not only 2. For example, in other embodiments, the number of the first heating pipes 12 is 1, the number of the second heating pipes 14 is 1, the second heating pipes 14 are located within the annular space of the first heating pipes 12, or the second heating pipes 14 are located outside the annular space of the first heating pipes 12. The predetermined space 1064 can be enveloped by the movement trajectories of the first heating pipe 12 and the second heating pipe 14 only when the first heating pipe 12 and the second heating pipe 14 rotate. The specific number of the first heating pipe 12 and the second heating pipe 14 is not limited herein.

In some embodiments, the movement locus of the first heating pipe 12 may envelop the preset space 1064, the movement locus of the second heating pipe 14 does not envelop the preset space 1064, or the movement locus of the first heating pipe 12 does not envelop the preset space 1064, and the movement locus of the second heating pipe 14 may envelop the preset space 1064. That is, only the movement locus of one of the first heating pipe 12 or the second heating pipe 14 needs to envelop the preset space 1064, so that the heat generated by one of the first heating pipe 12 or the second heating pipe 14 can be uniformly and sufficiently dissipated to the preset space 1064, and the preset space 1064 can be uniformly heated.

Of course, in some embodiments, one of the first and

second heating tubes

12, 14 may be omitted. In such an embodiment, it is only necessary that the movement trajectory of the other of the first heating pipe 12 and the second heating pipe 14 can envelope the preset space 1064.

Referring to fig. 1 and 2, in some embodiments, the cooking appliance 100 includes a heating device 107, the heating device 107 is in communication with the first heating pipe 12, and the heating device 107 is used for delivering heated gas to the first heating pipe 12.

The heating device 107 can supply heated gas to the first heating pipe 12, so that the first heating pipe 12 is filled with hot gas and can be ejected through the first gas ejection opening 123.

The heating device 107 may be an electric heater, and for example, the heating device 107 may include a PTC (Positive Temperature Coefficient) heating tube. In the case where the gas passes through the PTC heating tube, the PTC heating tube can heat the gas to heat the gas, thereby obtaining hot gas. Of course, the heating device 107 may not only be a PTC heating tube, but the specific type of the heating device 107 may be set according to different situations. The specific type of the heating device 107 is not limited, and the heating device 107 may heat the gas.

In some embodiments, the cooking appliance 100 comprises an air supply device 108, the air supply device 108 being configured to form an air flow to feed the heated air into the first heating tube 12.

The gas can be fed into the first heating pipe 12 by the gas feeding device 108, so that the flow of the gas in the first heating pipe 12 is facilitated, and the gas in the first heating pipe 12 or the second heating pipe 14 can be ejected from the first gas ejection opening 123 or the second gas ejection opening 143.

In the present embodiment, the heating device 107 is disposed between the air supply device 108 and the first heating pipe 12, so that the air flow generated by the air supply device 108 can be heated by the heating device 107 and then enter the first heating pipe 12, so that hot air is generated in the first heating pipe 12.

Further, the air supply device 108 may be a centrifugal fan. It will be appreciated that the air supply 108 may not be a centrifugal fan. The specific type of the air supply device 108 may be set according to various situations. It is only necessary that the air supply device 108 be capable of forming and feeding the air flow into the heating device 107 and the first heating pipe 12. The specific type of the air supply device 108 is not limited herein.

Referring to fig. 1, 2 and 6, in some embodiments, the housing 101 includes a first shell 102 and a second shell 103 connected to the first shell 102, the first shell 102 is formed with a receiving chamber 110, the second shell 103 is formed with a receiving space 109, and the heating device 107 and the air supply device 108 are located in the receiving space 109.

With such an arrangement, the first shell 102 and the second shell 103 can be used for protecting the heating device 107, the air supply device 108 and the heating tube, and preventing moisture or ash layer of external air from entering the accommodating space 109 or the accommodating chamber 110 to damage the heating device 107, the air supply device 108 and the heating tube, which is beneficial to the normal operation of the cooking appliance 100.

In some embodiments, the first case 102 has a spherical shape, and the first case 102 includes a lower case 1023 and an upper case 1021 detachably coupled to the lower case 1023.

Wherein, the detachable connection between the upper casing 1021 and the lower casing 1023 can be hinge joint, clamping joint or screw joint. And are not limited herein. Only the upper case 1021 and the lower case 1023 can be detachably connected.

In some embodiments, a partial region of the first shell 102 may be made of a transparent material so that the partial region is a transparent region. In this way, the user can observe the change of the food in the receiving chamber 110 through the transparent area, thereby facilitating the user to use the cooking appliance 100.

Referring to fig. 1, 2 and 6, in some embodiments, the cooking appliance 100 includes a partition plate separating the receiving space 109 and the receiving chamber 110, the partition plate is formed with a through hole 1051 communicating the receiving space 109 and the receiving chamber 110, and the air supply device 108 is used for sucking air in the receiving chamber 110 through the through hole 1051.

The partition plate can prevent the object in the receiving chamber 110 from falling into the receiving space 109. The through hole 1051 is arranged to enable the accommodating space 109 and the accommodating chamber 110 to be communicated, so that the gas supply device 108 can suck the gas in the accommodating chamber 110 to the accommodating space 109 through the through hole 1051, and then the gas in the accommodating space 109 is sent to the first heating pipe 12, so that the circulation of the gas is realized, and the structure is simple and easy to realize.

In the present embodiment, the partition plate is formed on the lower case 1023.

In some embodiments, the cooking appliance 100 includes a screen 105, the screen 105 being located at the through-hole 1051.

The arrangement of the filter screen 105 can further prevent the food in the accommodating chamber 110 from falling into the accommodating space 109, so that the user only needs to clean the accommodating chamber 110 after using the cooking appliance 100, and does not need to clean the accommodating space 109, thereby improving the user experience.

Referring to fig. 7, in some embodiments, the cooking appliance 100 further includes a supporting member 106 for supporting the object to be cooked, the supporting member 106 is disposed through the first heating pipe 12 and detachably connected to the housing 101, and the first heating pipe 12 can rotate around the supporting member 106.

The carrier 106 can be used to carry the cooked object (food) to prevent a situation where the food falls into the receiving chamber 110 causing the cooked object to be heated unevenly.

In this embodiment, the carrier 106 may form a predetermined space 1064, and a plurality of air inlets are formed on the surface of the carrier 106, so that the hot air ejected from the first air nozzle 123 and the second air nozzle 143 can enter the predetermined space 1064 through the air inlets, and further heat the cooked object in the predetermined space 1064.

Further, referring to fig. 8 to 10, the supporting member 106 includes a body 1061 and a connecting rod 10611 detachably connected to the body 1061, the first heating pipe 12 is provided with a second opening 128 and a third opening 129 opposite to the second opening 128 (see fig. 10 and 11), the connecting rod 10611 passes through the second opening 128 and the third opening 129 and partially exposes the third opening 129 and is rotatably connected to the first heating pipe 12, a groove 10612 is formed on a side of the connecting rod 10611 away from the body 1061 (see fig. 13 and 14), the upper casing 1021 is correspondingly provided with a protrusion 1022, and when the upper casing 1021 is connected to the lower casing 1023, the protrusion 1022 is embedded in the groove 10612 to fixedly connect the supporting member 106 and the housing 101. In the case that the upper case 1021 is separated from the lower case 1023, the user can detach the carrier 106 from the link 10611 and take out the accommodating chamber 110, so that the user can take out the food from the preset space 1064 or place the food in the preset space 1064, which is convenient and fast.

The volume of the end of the connecting rod 10611 exposed out of the third opening 129 is larger than the size of the third opening 129, so that the connecting rod 10611 can be prevented from being mistakenly separated from the first heating pipe 12.

Of course, in other embodiments, the carrier 106 may be mounted in other ways. For example, as shown in fig. 15, the connecting rod 10611 may be directly rotatably connected to the second heating pipe 14. The specific mounting of the carrier 106 is not limited herein.

Referring to fig. 7, in some embodiments, the body 1061 may include a first piece 1062 and a second piece 1063 detachably connected to the first piece 1062, and this may be configured to facilitate a user to detach or install the body 1061, thereby facilitating a user to take out food or place food. Wherein, the detachable connection can be clamping connection, screw connection and the like. The specific manner of detachable connection is not limited herein.

Referring to fig. 15 and 16, in other embodiments, the body 1061 may omit the second piece 1063. It is not limited whether the body includes the first piece 1062 and the second piece 1063.

Referring to fig. 15 and 16, in some embodiments, the cooking appliance 100 includes a first driving device 111, the first driving device 111 is connected to the first heating pipe 12, and the first driving device 111 is configured to drive the first heating pipe 12 to rotate around a first axis P.

The first driving device 111 can drive the first heating pipe 12 to rotate around the first axis P, so that the hot gas emitted from the first gas injection ports 123 can be uniformly injected toward the preset space 1064.

In some embodiments, the first driving device 111 comprises a first motor, and the first heating pipe 12 is connected to the first motor, and the first motor is used for driving the first heating pipe 12 to rotate around the first axis P.

The first motor is connected to the first heating pipe 12, and the first motor can drive the first heating pipe 12 to rotate, so that the first heating pipe 12 can rotate around the first axis P, and thus a movement track of the first heating pipe 12 can envelop the preset space 1064 when the first heating pipe 12 rotates.

The first motor may be one of a dc motor and an ac motor. Of course, the kind of the first motor includes not only the above two kinds. The specific type of first motor may be set according to different circumstances. The specific type of first motor is not limited herein.

Referring to fig. 15, in some embodiments, the cooking appliance 100 includes a second driving device 112, the second driving device 112 is connected to the second heating pipe 14, and the second driving device 112 is configured to drive the second heating pipe 14 to rotate around the second axis Y.

The second driving device 112 can drive the second heating pipe 14 to rotate around the second axis Y, so that the hot gas ejected from the second gas ejection port 143 can be uniformly ejected to the preset space 1064.

In some embodiments, the second driving device 112 includes a second motor, and the second heating pipe 14 is connected to the second motor, and the second motor is used for driving the second heating pipe 14 to rotate around the second axis Y.

The second motor is connected to the second heating pipe 14, and the second motor can drive the second heating pipe 14 to rotate, so that the second heating pipe 14 can rotate around the second axis Y, and thus a motion track of the second heating pipe 14 in a rotating condition can envelop the preset space 1064.

The second motor may be one of a dc motor and an ac motor. Of course, the kind of the second motor includes not only the above two kinds. The specific type of second motor may be set according to different circumstances. The specific type of the second motor 1131 is not limited herein.

In the present embodiment, the first driving device 111 can drive the first heating pipe 12 to rotate, and the second driving device 112 can drive the second heating pipe 14 to rotate, so that the rotation of the first heating pipe 12 and the rotation of the second heating pipe 14 can be controlled separately, and the structure is simple and easy to implement.

In other embodiments, the cooking appliance 100 may omit the first driving device 111 and the second driving device 112, and the following explains how to drive the first heating pipe 12 and the second heating pipe 14 to rotate in the case that the cooking appliance 100 omits the first driving device 111 and the second driving device 112:

referring to fig. 8 to 14, in such an embodiment, the cooking appliance 100 may include a power device 113, the power device 113 is connected to the first heating pipe 12, and the power device 113 is configured to drive the first heating pipe 12 to rotate around the first axis P.

The power plant 113 is capable of driving the first heating pipe 12 to rotate about the first axis P such that the first heating pipe 12 is capable of rotating about the first axis P to enable hot gas to be uniformly injected into the preset space 1064 from the first gas injection ports 123.

Further, referring to fig. 11 to 14, the power device 113 includes a motor 1131 and a transmission assembly 114, the transmission assembly 114 is connected to the motor 1131 and the first heating pipe 12, and the motor 1131 drives the first heating pipe 12 to rotate around the first axis P through the transmission assembly 114.

The transmission assembly 114 is connected with the motor 1131 and the first heating pipe 12, and the electric appliance can drive the transmission assembly 114 to rotate, so that the first heating pipe 12 is driven to rotate around the first axis P under the condition that the transmission assembly 114 rotates, and the structure is simple and easy to implement.

Further, the transmission assembly 114 includes a first gear 1141 fixedly connected to the motor 1131 and a second gear 1142 connecting the first gear 1141 and the first heating pipe 12.

The second gear 1142 may be fixed to the first heating pipe 12, and the first gear 1141 is engaged with the second gear 1142, so that the first gear 1141 can drive the second gear 1142 to rotate under the condition that the motor 1131 drives the first gear 1141 to rotate, thereby driving the first heating pipe 12 to rotate.

Specifically, referring to fig. 9 and 12, the cooking appliance 100 includes a rotating structure 116 connecting the rotating shaft 115 and the housing 101, the rotating structure 116 being used for rotating the second heating pipe 14 about the second axis Y under the condition that the first heating pipe 12 rotates about the first axis P.

In such an embodiment, one end of the rotating shaft 115 is fixed to the inner wall of the second heating pipe 14, and in the case of the first heating pipe 12 rotating, the rotating structure 116 can rotate together with the first heating pipe 12 to rotate the rotating shaft 115, and in the case of the rotating shaft 115 rotating, the second heating pipe 14 can rotate together with the rotating shaft 115. In such a case, only the power device 113 is required to drive the first heating pipe 12 to rotate, and the second heating pipe 14 rotates around the second axis Y under the cooperation of the rotating structure 116, so that no additional structure is required to drive the second heating pipe 14 to rotate, the structure is simple, and the manufacturing cost of the cooking appliance 100 is reduced.

Further, referring to fig. 9, the rotating structure 116 includes a third gear 1161 disposed on the housing 101 and a fourth gear 1162 disposed on the rotating shaft 115, and the third gear 1161 is engaged with the fourth gear 1162.

With such an arrangement, the rotation of the rotating shaft 115 can be realized through the arrangement of the third gear 1161 and the fourth gear 1162, and the structure is simple and easy to implement.

Referring to fig. 10 and 11, the first heating pipe 12 is provided with a fourth opening 130, the fourth opening 130 and the first opening 127 are located at two opposite sides of the first heating pipe 12, one end of the rotating shaft 115 is fixed to the inner wall of the second heating pipe 14, the other end of the rotating shaft 115 is exposed out of the fourth opening 130, and the fourth gear 1162 is fixedly connected to a portion of the rotating shaft 115 exposed out of the fourth opening 130, so that the fourth gear 1162 is driven to move when the first heating pipe 12 rotates around the first axis P, since the fourth gear 1162 is engaged with the third gear 1161, the third gear 1161 is arranged on the housing 101, and the fourth gear 1162 can rotate relative to the third gear 1161, so as to drive the rotating shaft 115 to rotate, thereby realizing that the second heating pipe 14 rotates around the second axis Y.

In the present embodiment, the third gear 1161 is fixed to the housing 101 and is annularly provided.

The rotation shaft 115 passes through the first air passage 122, the second air intake passage 141, and the second air passage 142.

In the description herein, references to the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heating assembly for an electric cooking appliance, characterized in that it comprises:

the second heating pipe is rotatably arranged on the first heating pipe and used for rotating around a second axis and around the preset space, the second heating pipe is formed with a second air inlet channel, a second air through channel and a plurality of second air injection ports, the plurality of second air injection ports are distributed along the circumferential direction of the preset space, and the second air inlet channel is communicated with the first air through channel and the plurality of second air injection ports so that the gas in the first air through channel flows to the second air through channel; the first axis is perpendicular to the second axis or forms a preset angle with the second axis;

the first ventilation channel comprises a first air distribution channel and a second air distribution channel arranged at intervals with the first air distribution channel, the first air distribution channel is communicated with the first air injection port, and the second air distribution channel is communicated with the second air inlet channel.

2. The heating assembly of claim 1, wherein the first heating tube includes an outer tube formed with the first vent passage and a divider plate disposed within the outer tube, the divider plate spacing the first vent passage to define the first and second gas-dividing passages with the outer tube.

3. The heating assembly of claim 2, wherein the first heating duct further comprises a closing plate connecting the partition plate and the outer duct and closing both ends of the second gas dividing passage, the closing plate being disposed adjacent to the second gas inlet passage.

4. The heating assembly of claim 1, wherein the second heating tube comprises a gas injection section and an extension section connected to the gas injection section, the gas injection section is formed with the second gas passage and the second gas injection port, the extension section is formed with the second gas inlet passage, and the extension section is rotatably disposed with respect to the first heating tube.

5. The heating assembly of claim 4, comprising a bearing, wherein an outer ring of the bearing is fixed to the first heating tube and an inner ring of the bearing is fixedly connected to the extension.

6. An electric cooking appliance, characterized in that it comprises:

a housing formed with a receiving chamber; and

the heating assembly of any of claims 1-5, disposed within the housing chamber.

7. The cooking appliance according to claim 6, wherein the cooking appliance comprises a first driving device, the first driving device is connected with the first heating pipe, and the first driving device is used for driving the first heating pipe to rotate around the first axis.

8. The cooking appliance according to claim 7, wherein the first driving device comprises a first motor, the first heating pipe being connected to the first motor, the first motor being configured to drive the first heating pipe to rotate about the first axis.

9. The cooking appliance according to claim 6, wherein the cooking appliance comprises a second driving device, the second driving device is connected with the second heating pipe, and the second driving device is used for driving the second heating pipe to rotate around the second axis.

10. The cooking appliance according to claim 9, wherein the second driving means comprises a second motor, the second heating pipe being connected to the second motor, the second motor being configured to drive the second heating pipe to rotate about the second axis.

11. The cooking appliance of claim 6, wherein the cooking appliance includes a heating device in communication with the first heating tube, the heating device configured to deliver heated gas to the first heating tube.

12. The cooking appliance of claim 11, wherein the cooking appliance includes a gas delivery device for creating a gas flow to deliver heated gas into the first heating tube.

13. The cooking appliance according to claim 12, wherein the outer casing comprises a first casing and a second casing connected to the first casing, the first casing is formed with the receiving chamber, the second casing is formed with a receiving space, and the heating device and the air supply device are both located in the receiving space.

14. The cooking appliance according to claim 13, wherein the cooking appliance comprises a partition plate partitioning the receiving space and the receiving chamber, the partition plate being formed with a through hole communicating the receiving space and the receiving chamber, the air supply device being configured to suck air in the receiving chamber through the through hole.

15. The cooking appliance according to claim 14, wherein the cooking appliance comprises a sieve, the sieve being located at the through hole.

16. The electrical cooking appliance according to claim 13, further comprising a carrier for carrying the object to be cooked, wherein the carrier is disposed through the first heating tube and detachably connected to the housing, and the first heating tube is rotatable around the carrier.