WO2022063309A1

WO2022063309A1 - Cooling fan, bottom plate assembly, and cooking utensil

Info

Publication number: WO2022063309A1
Application number: PCT/CN2021/121073
Authority: WO
Inventors: 胡广川; 陈茂顺; 邓雁青; 朱之飞
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2020-09-27
Filing date: 2021-09-27
Publication date: 2022-03-31
Also published as: KR20220122738A

Abstract

The present invention relates to the technical field of household appliances, and in particular to a cooling fan, a bottom plate assembly, and a cooking utensil. The cooling fan of the present invention comprises an impeller, an electric motor, and an electric motor support, wherein the impeller is connected to an output shaft of the electric motor; the electric motor is arranged on the electric motor support; and at least two air output ends are provided on the electric motor support. According to the cooling fan of the present invention, the at least two air output ends are provided on the electric motor support, and a cooling air flow formed by the impeller under the driving action of the electric motor can flow out of the at least two air output ends, such that the cooling air flow is output towards different spatial positions, thereby cooling components at multiple spatial positions at the same time, improving the cooling effect of the cooling fan, and guaranteeing the reliable operation of an appliance assembly in the bottom plate assembly.

Description

Cooling fan, base plate assembly and cooking utensils

priority information

This application claims priority to and the benefit of the following patent applications, the entire contents of which are incorporated herein by reference:

A Chinese patent application with the application number of 202022164679.1 and the title of "Steel Plate Assembly and Cooking Appliance Having the Same" submitted to the State Intellectual Property Office of China on September 27, 2020.

The Chinese patent application with the application number of 202011036196.1 and the title of "Soleplate Assembly and Cooking Appliance with the Same" submitted to the State Intellectual Property Office of China on September 27, 2020.

The Chinese patent application with the application number of 202011034819.1 and the title of "sole plate assembly and cooking utensils" submitted to the State Intellectual Property Office of China on September 27, 2020.

The Chinese patent application with the application number of 202011054757.0 and the title of "cooling fan, bottom plate assembly and cooking utensil" submitted to the State Intellectual Property Office of China on September 27, 2020.

A Chinese patent application with the application number of 202011034700.4 and the title of "Steel Plate Assembly and Cooking Appliance Having the Same" submitted to the State Intellectual Property Office of China on September 27, 2020.

A Chinese patent application with the application number of 202120446443.9 and the title of "Steel Plate Assembly and Cooking Device" submitted to the State Intellectual Property Office of China on March 1, 2021.

technical field

The invention relates to the technical field of household appliances, in particular to a cooling fan, a bottom plate assembly and a cooking utensil.

Background technique

This section provides merely background information related to the present disclosure and is not necessarily prior art.

In the related art, for a cooking appliance with microwave function, a microwave generating module (magnetron) is usually arranged at the bottom of the cavity assembly, and some cooking appliances are also arranged with other structures below the cavity assembly, while Since there is no physical isolation between the microwave generating module and other structures, during the logistics transportation of the cooking utensils, if other structures arranged under the cavity assembly become loose, they may contact or collide with the microwave generating module. There is a risk of damage to the microwave generating module.

SUMMARY OF THE INVENTION

The purpose of the present invention is to at least solve the problem that the same motor cannot simultaneously dissipate heat for components in multiple spatial positions. This purpose is achieved by:

A first aspect of the present invention provides a cooling fan, the cooling fan includes:

impeller;

a motor, the impeller is connected to the output shaft of the motor;

A motor bracket, the motor is arranged on the motor bracket, and at least two air outlet ends are arranged on the motor bracket.

According to the cooling fan of the present invention, by arranging at least two air outlet ends on the motor bracket, the cooling air flow formed by the impeller under the driving action of the motor can flow out through the at least two air outlet ends, thereby outputting the cooling air flow toward different spatial positions , and then simultaneously dissipate heat for components in multiple spatial positions, improve the heat dissipation effect of the cooling fan, and ensure the reliable operation of the electrical components in the base plate assembly.

In addition, the cooling fan according to the present invention may also have the following additional technical features:

In some embodiments of the present invention, the at least two air outlet ends include a first air outlet end and a second air outlet end, and the first air outlet end and the second air outlet end extend in different directions set up.

In some embodiments of the present invention, the cross-sectional area of the first air outlet end is greater than the cross-sectional area of the second air outlet end.

In some embodiments of the present invention, the motor bracket includes a support plate, a first enclosure plate and a second enclosure plate, and the first enclosure plate and the second enclosure plate are respectively disposed opposite to each other along the edge of the support plate , the opposite ends of the first enclosure plate and the second enclosure plate form the first air outlet end, and the opposite ends of the first enclosure plate and the second enclosure plate form the second air outlet The height dimension of the second air outlet end gradually decreases along its own extending direction.

In some embodiments of the present invention, both the height dimension of the first shroud and the height dimension of the second shroud are smaller than the height dimension of the impeller.

In some embodiments of the present invention, the motor bracket is provided with a ventilation hole arranged opposite to the impeller.

In some embodiments of the present invention, the impeller includes a blade mounting plate, a fixing ring and a plurality of blades, one end of the plurality of blades is annularly arranged on the blade mounting plate along an edge position of the blade mounting plate, and many The other ends of each of the blades are connected by the fixing ring.

In some embodiments of the present invention, the width dimension of the retaining ring is less than or equal to the width dimension of the blade.

In some embodiments of the present invention, the impeller is a centrifugal impeller.

The present invention also provides a base plate assembly, comprising:

base plate body;

an electrical component, the electrical component is arranged in the base plate body;

A cooling fan, the cooling fan is arranged in the base plate body and is used for cooling the electrical components, wherein the cooling fan is the cooling fan described in any one of the above.

In some embodiments of the present invention, the bottom plate body is provided with a first air inlet, a first air outlet and a second air outlet, and a first air inlet channel is formed between the impeller and the first air inlet, so A first air outlet channel is formed between the impeller and the first air outlet, a second air outlet channel is formed between the impeller and the second air outlet, and the first air outlet end of the motor bracket faces the first air outlet. The direction of the air outlet channel is extended and arranged, and the second air outlet end of the motor bracket is arranged to extend in the direction of the second air outlet channel.

In some embodiments of the present invention, the bottom plate body is further provided with a second air inlet, the second air inlet is arranged opposite to the impeller, and the second air inlet is formed between the impeller and the second air inlet. Two air inlet channels.

In some embodiments of the present invention, some electrical components of the electrical component are arranged in the first air inlet channel, and another part of the electrical components of the electrical component is arranged in the first air outlet channel, and all the electrical components are arranged in the first air outlet. The heating power of the part of the electrical components in the first air inlet channel is smaller than the heating power of the other part of the electrical components in the first air outlet channel.

The present invention also proposes a cooking utensil, comprising:

cavity assembly;

A bottom plate assembly, the bottom plate assembly is arranged below the cavity assembly, wherein the bottom plate assembly is the bottom plate assembly described in any one of the above.

In some embodiments of the present invention, the cooking utensil further includes a housing, and an accommodating space formed between the housing and a side wall of the cavity assembly communicates with the second air outlet.

In some embodiments of the present invention, at least one of a furnace lamp, an infrared sensing device and a furnace door interlock switch is provided in the containing space formed between the casing and the side wall of the cavity.

The present invention also provides a bottom plate assembly for a cooking appliance, the bottom plate assembly comprising:

base plate body;

an accommodating cavity, the accommodating cavity is formed inside the bottom plate body;

a power board, the power board is arranged in the accommodating cavity;

A power cord, the power cord is connected to the power board, and the power cord includes a power cord body and a wire-passing structure formed on the power cord body, and the wire-passing structure is mounted on the base plate body.

In some embodiments of the present invention, a wire passage opening is formed on the base plate body, and a card slot adapted to the wire passage opening is formed on the wire passage structure, and the card groove is engaged with the wire passage opening. the edge of the wire opening.

In some embodiments of the present invention, the shape of the wire-passing opening is a polygon and the cross-sectional shape of the wire-passing structure is also a polygon, or the shape of the wire-passing opening is an ellipse and the shape of the wire-passing structure is a polygon. The cross-sectional shape is also oval.

In some embodiments of the present invention, the bottom plate body includes a base and a cover plate, the cover plate is connected to the top of the bottom plate, the cover plate and the base jointly define the accommodating cavity, and the over- The wire opening is provided at the upper edge of the base.

In some embodiments of the present invention, the bottom plate body includes a base, the base and the bottom plate of the cavity assembly of the cooking appliance jointly define the accommodating cavity, and the wire passage is provided on the base at the edge.

In some embodiments of the present invention, at least one of a filter board, a frequency converter, a transformer and a microwave generating module is further provided in the accommodating cavity.

In some embodiments of the present invention, a water pump and/or a steam generator are further arranged in the accommodating cavity.

In some embodiments of the present invention, a filter board and/or a frequency converter are further arranged in the accommodating cavity, and a water pump and/or a steam generator are also arranged in the accommodating cavity.

In some embodiments of the present invention, the base plate body is an insulating member.

The present invention also provides a cooking utensil, comprising the bottom plate assembly described in any one of the above.

a bottom plate body, the bottom plate body is an insulating part;

An electrical component is provided in the accommodating cavity.

In some embodiments of the present invention, the electrical component includes a first electrical component, the electrical component further includes at least one of a second electrical component and a third electrical component, wherein the second electrical component includes at least one An electrical device dedicated to microwave cooking appliances, the third electrical component includes at least one electrical device dedicated to steam cooking appliances, and the first electrical component includes at least one electrical appliance common to microwave cooking appliances and steam cooking appliances pieces.

In some embodiments of the present invention, the first electrical component includes a power supply board, the second electrical component includes at least one of a filter board and a semiconductor microwave generator, and/or one of a frequency converter and a transformer, the The third electrical component includes at least one of a water pump and a steam generator.

In some embodiments of the present invention, a ventilation opening communicated with the receiving cavity is formed on the bottom plate body.

In some embodiments of the present invention, at least two ventilation openings are formed on the bottom plate body that communicate with the accommodating cavity, and a cooling fan is arranged in the accommodating cavity.

In some embodiments of the present invention, along the direction of airflow, the electrical components in the electrical component are arranged in order of heating power from small to large.

In some embodiments of the present invention, the base plate body is a plastic part or a ceramic part.

In some embodiments of the present invention, the bottom plate body includes a base and a cover, the cover is connected to the top of the base, and the cover and the base jointly define the accommodating cavity.

In some embodiments of the present invention, the bottom plate body includes a base, and the base and the bottom plate of the cavity assembly of the cooking appliance jointly define the receiving cavity.

In some embodiments of the present invention, the base is an integrally formed structure.

In some embodiments of the invention, a handle is formed on the base.

In some embodiments of the present invention, a accommodating cavity for accommodating the water box assembly is further formed on the bottom plate body.

The present invention also provides a base plate assembly, comprising:

a bottom plate body, the bottom plate body is provided with a first air inlet and a first air outlet;

A cooling fan, which is arranged in the base plate body and is used to dissipate heat from the electrical components, a first air inlet channel is formed between the cooling fan and the first air inlet, and the cooling fan and the A first air outlet channel is formed between the first air outlets, and the electrical components are arranged in the first air inlet channel and/or the first air outlet channel.

In some embodiments of the present invention, the portion of the electrical device includes a power supply board.

In some embodiments of the present invention, the other part of the electrical device includes one of a transformer and a frequency converter and/or a filter board.

In some embodiments of the present invention, the other part of the electrical device includes a steam generator and/or a water pump.

In some embodiments of the present invention, the other part of the electrical device further includes a microwave generating module.

In some embodiments of the present invention, the bottom plate body is provided with a hollow structure for accommodating the magnetron, and the hollow structure causes the bottom plate body to be disconnected.

In some embodiments of the present invention, the void structure is provided with a limiting groove for fixing the magnetron.

In some embodiments of the present invention, the first air inlet and the first air outlet are arranged adjacent to each other, and the air inlet direction of the first air inlet and the air outlet direction of the first air outlet are oppositely arranged .

In some embodiments of the present invention, an air intake grille is further provided at the first air inlet.

In some embodiments of the present invention, the bottom plate body is further provided with a second air inlet, the second air inlet is arranged opposite to the impeller of the heat dissipation motor, and the impeller and the second air inlet are arranged between the impeller and the second air inlet. A second air inlet channel is formed.

In some embodiments of the present invention, the cooling fan further includes a motor and a motor bracket, the motor bracket is connected to the base plate body, the motor is arranged on the motor bracket, and the impeller is connected to the motor bracket. The output shaft is connected, and the motor bracket is provided with a ventilation hole corresponding to the impeller.

In some embodiments of the present invention, the impeller is provided above the motor, and the second air inlet is provided on the bottom plate portion of the bottom plate body.

In some embodiments of the present invention, the impeller is provided below the motor, and the second air inlet is provided on the side plate portion of the base plate body.

In some embodiments of the present invention, the bottom plate body includes a base and a cover, and the base and/or the cover are provided with a structure for defining the first air inlet channel and the first air outlet channel the baffle and side panels.

In some embodiments of the present invention, the bottom plate body includes a base, and the base is provided with a baffle portion and a side plate portion for defining the first air inlet channel and the first air outlet channel.

The present invention also proposes a cooking utensil, comprising:

cavity assembly;

In some embodiments of the present invention, when the bottom plate assembly is the bottom plate assembly described in the above section, the bottom surface of the cavity assembly is provided with a bottom surface for defining the first air inlet channel and the first air inlet channel. The baffle part and the side plate part of the air outlet channel.

base plate body;

A hollow structure is formed on the bottom plate body, and the hollow structure is used for accommodating a microwave generating module of the cooking utensil.

In some embodiments of the present invention, an accommodating cavity is formed inside the base plate body, and the base plate assembly further includes an electrical component disposed in the accommodating cavity.

In some embodiments of the present invention, the accommodating cavities are distributed in a "C" shape.

In some embodiments of the present invention, a limiting groove is formed on the side wall of the hollow structure, and the limiting groove is used for guiding and limiting the raised edge of the microwave generating module.

In some embodiments of the present invention, a detachable bottom cover is disposed at the bottom of the bottom plate body, and the bottom cover is disposed below the air-saving structure.

In some embodiments of the present invention, the electrical component includes a first electrical component and a second electrical component, wherein the second electrical component includes at least one electrical device dedicated to microwave cooking appliances, the first electrical component An electrical assembly includes at least one electrical device common to all types of cooking appliances.

In some embodiments of the present invention, the first electrical component includes a power board, and the second electrical component includes one of a transformer and a frequency converter and/or a filter board.

The present invention also proposes a cooking utensil, comprising:

Box components;

a cavity assembly, the cavity assembly is formed inside the box assembly;

a microwave generating module, which is arranged at the bottom of the cavity assembly;

A bottom plate assembly, the bottom plate assembly is installed at the bottom of the box assembly, the bottom plate assembly is the bottom plate assembly described in any one of the above, and the microwave generating module is arranged in the hollow structure of the bottom plate assembly .

The present invention also provides a base plate assembly, comprising:

A cooling fan, the cooling fan is arranged in the base plate body, a first air inlet channel is formed between the cooling fan and the first air inlet, and a first outlet is formed between the cooling fan and the first air outlet air channel;

A plurality of electrical components, some of the electrical components are arranged in the first air inlet channel and corresponding to the first air inlet, and another part of the electrical components are arranged in the first air inlet channel and/or the first air inlet channel. into the first air outlet channel.

In some embodiments of the present invention, the bottom plate assembly further includes a water box, and the water box and the first air inlet channel are arranged side by side inside the bottom plate body.

In some embodiments of the present invention, the first air inlet is provided on the bottom surface of the bottom plate body, and the first air outlet is provided on the side surface of the bottom plate body.

In some embodiments of the present invention, the first air inlet is a mesh structure, or the first air inlet is a structure in which an opening is provided with an air inlet grille.

In some embodiments of the present invention, the part of the electrical components is a power board, and the power board is disposed in the air inlet channel and corresponding to the first air inlet.

In some embodiments of the present invention, the other part of the electrical components is provided in the first air inlet channel and the first air outlet channel, and the other part of the electrical components includes a transformer and a frequency converter. A and/or filter plate, the transformer or the frequency converter is arranged in the first air outlet channel, and the filter plate is arranged in the first air inlet channel.

In some embodiments of the present invention, the soleplate assembly further includes a steam generator and/or a microwave generator provided in the soleplate body.

In some embodiments of the present invention, the bottom plate body is further provided with a second air inlet, the second air inlet is arranged corresponding to the impeller of the cooling fan, and the second air inlet is located between the impeller and the second air inlet. A second air inlet channel is formed.

In some embodiments of the present invention, the base plate body is an insulator.

The present invention also proposes a cooking utensil, comprising:

cooking cavity;

A bottom plate assembly, the bottom plate assembly is arranged below the cooking cavity, wherein the bottom plate assembly is the bottom plate assembly described in any one of the above.

Description of drawings

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

Fig. 1 is the overall structure schematic diagram of the cooking appliance of the application;

Fig. 2 is the exploded structure schematic diagram of the cooking appliance of the application;

3 is a schematic diagram of a base plate assembly in an embodiment of the application (the cover plate and the base are not connected);

FIG. 4 is an exploded schematic view of the base plate assembly in the embodiment of the application (the cover plate is omitted);

5 is a schematic diagram of a connection relationship between a power cord and a base plate assembly in an embodiment of the present application;

6 is a schematic diagram of a power cord in an embodiment of the application;

7 is a schematic diagram of a base plate assembly in an embodiment of the application;

8 is a schematic diagram of the interior of the base in an embodiment of the application;

9 is a schematic diagram of a base in an embodiment of the application;

10 is a schematic diagram of a cover plate in an embodiment of the application;

11 is a schematic diagram of the interior of the base in another embodiment of the application;

12 is a schematic diagram of a base in another embodiment of the application;

13 is a schematic diagram of a motor assembly in an embodiment of the application;

FIG. 14 is a schematic diagram of another viewing angle of the motor assembly in the embodiment of the application;

FIG. 15 is a schematic diagram of another perspective of the motor assembly in the embodiment of the application;

16 is a schematic diagram of an exploded structure of a motor assembly in an embodiment of the application;

17 is a schematic diagram of an impeller in an embodiment of the application;

18 is a schematic diagram of the interior of the base in another embodiment of the application;

19 is a schematic diagram of a base plate assembly in another embodiment of the application;

FIG. 20 is a schematic exploded view of the bottom plate assembly in FIG. 19 .

Reference number:

1: cooking utensils;

100: base plate assembly;

110: base plate body;

111: base, 1111: bottom plate, 1112: side plate, 1113: baffle, 112: cover, 113: handle, 115: cable opening;

120: accommodating cavity;

123: installation department;

130: Cooling fan, 131: Impeller, 1311: Blade, 1312: Blade mounting plate, 1313: Fixed ring, 132: Motor, 1321: Motor body, 1322: Output shaft, 133: Motor bracket, 1331: Air vent, 1332: The first air outlet, 1333: the second air outlet, 1334: the support plate, 1335: the first enclosure, 1336: the second enclosure, 1337: the shaft hole, 1338: the first installation hole, 1339: the second installation hole;

141: The first air inlet channel, 142: The first air outlet channel, 143: The first air inlet, 1431: The baffle plate, 1432: The air inlet grille, 144: The first air outlet, 145: The second air inlet channel, 146: the second air outlet, 147: the second air inlet, 148: the second air outlet;

150: power cord;

151: Power cord body, 152: Cable structure, 1521: Card slot;

160: avoidance structure;

161: limit slot;

170: containment cavity;

180: water box assembly;

190: steam generator;

200: electrical components;

210: the first electrical component;

211: power board;

220: the second electrical component;

221: filter board, 222: inverter;

230: the third electrical component;

231: water pump;

300: cavity assembly;

400: door body assembly;

500: Box assembly.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can also be intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or components, but do not preclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. Method steps, procedures, and operations described herein are not to be construed as requiring that they be performed in the particular order described or illustrated, unless an order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be restricted by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inner" ", "outside", "below", "below", "above", "above", etc. This spatially relative term is intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "above the other elements or features" above features". Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in FIGS. 1 and 2 , a cooking appliance 1 according to an embodiment of the present application includes a bottom plate assembly 100 and a box assembly 500 . Wherein, the bottom plate assembly 100 is used to provide support for the whole machine of the cooking appliance 1 , and the box assembly 500 of the cooking appliance 1 can be installed on the bottom plate body 100 .

Further, the cooking appliance 1 further includes a cavity assembly 300 formed inside the box assembly 500, and the cavity assembly 300 is used to provide a space for cooking food.

Further, the cooking appliance 1 further includes a door assembly 400 , and the door assembly 400 is connected to the box assembly 500 in a manner that can open or close the cavity assembly 300 .

In an embodiment of the present application, the bottom plate assembly 100 includes a bottom plate body 110 , an accommodating cavity 120 and an electrical component 200 , the containing cavity 120 is formed inside the bottom plate body 110 , the bottom plate body 110 is an insulating member, and the electrical component 200 is disposed in the accommodating cavity 120 in. The electrical component 200 is mainly an electronic device group that enables the cooking utensil 1 to work normally and has certain functions.

The bottom plate assembly 100 in this embodiment is not only used to provide support for the whole cooking appliance 1, but also provides a mounting position for the electrical assembly 200 of the cooking appliance 1, so that the electrical assembly 200 and the bottom plate body 110 are integrated together, This changes the state of each power device of the existing cooking utensil being installed in different parts of the whole machine, which is beneficial to reduce the number of installation modules of the cooking utensil 1 during the assembly process, thereby improving the assembly efficiency. In addition, in the prior art, the power device of the cooking appliance needs to be installed in the insulating box first, and then the insulating box is integrally installed on the whole machine. Compared with this, the bottom plate body 110 in this embodiment is an insulating part, and the electrical appliance The assembly 200 can be directly installed in the accommodating cavity 200 inside the base plate body 110 to meet the electrical safety requirements, so that the insulating box can be eliminated to reduce the number of parts of the whole machine, thereby reducing the production cost and improving the production efficiency.

Optionally, as shown in FIG. 3 and FIG. 4 , the electrical component 200 further includes a first electrical component 210 , and the first electrical component 210 includes at least one electrical device, such as a power board 211 , which is common to all types of cooking utensils. The electrical component 200 further includes at least one of a second electrical component 220 and a third electrical component 230, wherein the second electrical component 220 includes at least one electrical device dedicated to microwave cooking appliances, an electrical appliance dedicated to microwave cooking appliances The components are, for example, a filter board 221, a frequency converter 222 (or a transformer), a microwave generating module, etc. The microwave generating module in this example is a semiconductor microwave generator, and the third electrical component 230 includes at least one electrical device dedicated to steam cooking appliances , the electrical devices dedicated to the steam cooking appliance are, for example, a water pump 231, a steam generator (not shown in the figure), and the like. It should be noted that the frequency converter 222 and the transformer in the electrical devices dedicated to microwave cooking utensils are set alternatively, the former is suitable for variable frequency microwave cooking utensils, and the latter is suitable for fixed frequency microwave cooking utensils. In addition, it can be understood that the microwave generating module may have different structures according to different microwave generating principles. For example, for a magnetron type microwave cooking appliance, the microwave generating module may include a magnetron and a waveguide, etc. In the semiconductor microwave cooking appliance, the microwave generating module may include a semiconductor microwave generator.

Specifically, when the electrical component 200 includes a first electrical component 210 and a second electrical component 220, correspondingly, the cooking appliance 1 may be a microwave oven, an integrated microwave oven and other cooking appliances with microwave functions. For example, in a specific example, a power supply board 211 , a filter board 221 , a frequency converter 222 (or a transformer) and a semiconductor microwave generator are provided in the accommodating cavity 120 . In another specific example, a power supply board 211 and a filter board 221 are provided in the accommodating cavity 120 . In another different example, a power board 211 and a frequency converter 222 (or a transformer) are provided in the accommodating cavity 120 . It can be understood that, in some other examples, the electrical components 200 provided in the accommodating cavity 120 may also include various combinations of semiconductor microwave generators, which are not listed one by one here.

When the electric appliance assembly 200 includes the first electric appliance assembly 210 and the third electric appliance assembly 230, correspondingly, the cooking appliance 1 may be a cooking appliance with a steam function, such as a steamer, an integrated steam oven and the like. For example, in a specific example, a power supply board 211 , a water pump 231 and a steam generator are provided in the accommodating cavity 120 . In another specific example, a power supply board 211 and a water pump 231 are provided in the accommodating cavity 120 . In another different example, a power board 211 and a steam generator are provided in the accommodating cavity 120 .

When the electrical component 200 includes the first electrical component 210 , the second electrical component 220 and the third electrical component 230 , correspondingly, the cooking appliance 1 can be an all-in-one microwave-steam machine, an all-in-one oven microwave-steam machine, etc. having both a microwave function and a steam function cooking utensils. For example, in a specific example, a power supply board 211 , a filter board 221 , a frequency converter 222 (or a transformer), a water pump 231 and a steam generator are provided in the accommodating cavity 120 . In another specific example, a power supply board 211, a filter board 221, a water pump 231 and a steam generator are provided in the accommodating cavity 120, and the filter board 221 can also be replaced with a frequency converter 222 (or a transformer), thereby forming another a different combination. In another specific example, a power supply board 211, a filter board 221, a frequency converter 222 (or a transformer) and a water pump 231 are provided in the accommodating cavity 120, and the water pump 231 can also be replaced with a steam generator, thereby forming another different combinations. In another specific example, a power supply board 211, a filter board 221 and a water pump 231 are provided in the accommodating chamber 120, wherein the filter board 221 can be replaced by a frequency converter 222 (or a transformer), and the water pump 231 can be replaced by a steam generator device to form different combinations. It can be understood that, in some other examples, the electrical components 200 provided in the accommodating cavity 120 may also include various combinations of semiconductor microwave generators, which are not listed one by one here.

Optionally, a plurality of installation positions are formed in the accommodating cavity 120, each installation position is used for assembling a corresponding electrical device, and the shape and volume of each installation position can be set according to the specific electrical device to be assembled, that is, In other words, different installation positions have certain differences in shape and volume. In this way, when assembling the base plate assembly 100 , the assembler can quickly identify the installation position corresponding to each electrical device, thereby improving the assembly efficiency. On the other hand, because different installation positions have certain differences in shape and volume, it can also prevent the assembler from installing the electrical components in the wrong positions, because if the installation position corresponding to the electrical components is not found, the electrical components The piece does not fit in the mounting position. For example, a specific installation position in the accommodating cavity 120 is the power board installation position. If the assembler installs the filter board 221 here by mistake, the filter board 221 will fail due to mismatched shapes or sizes. Enter the power board installation position smoothly, thus, it plays the role of error correction. Optionally, a plurality of installation positions are formed in the accommodating cavity 120, and each installation position is used for assembling a corresponding electrical device. The shape and volume of each installation position can be set according to the specific electrical device to be assembled. A mounting portion 123 is provided at the bottom of each mounting position. The mounting portion 123 is used to connect with the corresponding electrical device. The mounting portion 123 can be, for example, a connecting hole or a connecting column with a connecting hole. It is connected with the mounting portion 123, thereby realizing the mounting of the electrical device on the corresponding mounting position.

In an example of the present embodiment, at least two ventilation holes are formed on the bottom plate body 110 that communicate with the accommodating cavity 120 , and the vent holes allow the accommodating cavity 120 to communicate with the outside of the bottom plate body 110 . Each electrical device in the accommodating cavity 120 will generate heat during operation, and the arrangement of the air vents enables the heat generated by each electrical device to be discharged out of the accommodating cavity 120, thereby facilitating the heat dissipation and cooling of each electrical device, and furthermore It is beneficial to maintain stable working performance and long service life of each electrical device.

In another example of this embodiment, at least two ventilation openings are formed on the bottom plate body 110 that communicate with the accommodating cavity 120 , a cooling fan 130 is provided in the accommodating cavity 120 , and the cooling fan 130 is used for forming inside and outside the accommodating cavity 120 The airflow is circulated to introduce external cold air into the accommodating cavity 120 , and at the same time, the heat generated by the electrical components in the accommodating cavity 120 is discharged in time by using the circulating air flow. In addition, in order to achieve better heat dissipation, the arrangement sequence of each electrical device can also be optimized. Specifically, along the flow direction of the airflow, the electrical components can be arranged in the order of heating power from small to large. The advantage of this is that after the cooling air passes through the electrical components with small heating power, the temperature rise is small, so that It still has a good cooling effect when passing through the following electrical devices with higher heating power. A specific example will be described below. Taking the case where the power supply board 211, the filter board 221, the frequency converter 222, the water pump 231 and the steam generator are simultaneously provided in the accommodating cavity 120 as an example, along the flow direction of the airflow, the above electrical components are Arrange them in ascending order of heating power. The arrangement of the electrical components is such that the power supply board 211 , the filter board 221 , the frequency converter 222 , the water pump 231 and the steam generator are arranged in sequence along the flow direction of the flow. In addition, when the cooking utensil 1 does not have the steam function, the electrical components dedicated to the steam-based cooking utensils such as the water pump 231 and the steam generator can be omitted in the above layout, and when the cooking utensil 1 does not have the microwave function, the above layout can be used. Electric components dedicated to microwave-type cooking appliances such as the filter plate 221 and the inverter 222 are omitted.

In an example of this embodiment, the bottom plate body 110 is a plastic part or a ceramic part. The plastic part has good insulation properties and can meet the requirements of electrical safety; Anti-collision and other characteristics. Ceramic parts also have good insulating properties, and also have the advantages of good brightness and wear resistance. It can be understood that the base plate body 110 is not limited to using plastic parts or ceramic parts, and can also be made of insulating materials such as glass and mica.

In an example of this embodiment, the bottom plate body 110 includes a base 111 and a cover plate 112 , the cover plate 112 is connected to the top of the base 111 , and the cover plate 112 and the base 111 together define a receiving cavity 120 . When the base plate assembly 100 in this example is assembled, the electrical assembly 200 and the base 111 can be assembled together first, and then the cover plate 112 and the base 111 are connected to form the base plate assembly 100 . It can be understood that the base 111 and the cover plate 112 are both insulating materials, so that the electrical component 200 disposed in the accommodating cavity 120 can meet the electrical safety requirements.

Further, the cover plate 112 and the base 111 can be connected by screws. On the one hand, screws are commonly used connecting parts, and their cost is low. On the other hand, the way of screw connection is not only firm, but also removable Therefore, it is convenient to open the cover 112 for inspection and maintenance of the electrical component 200 .

In another example of this embodiment, the bottom plate body 110 includes a base 111 (without a cover plate), and when the base 111 and the cavity assembly 300 of the cooking appliance 1 are assembled, the base 111 and the bottom plate of the cavity assembly 300 jointly define out of the accommodating cavity 120 . In this example, since the base plate body 110 does not contain a cover plate, the electrical component 200 is in a semi-exposed state after being installed on the base 111 . After the base plate assembly 100 and the cavity assembly 300 , the electrical component 200 is packaged in the accommodating cavity 120 . In this case, an insulating layer may be arranged on the bottom surface of the bottom plate of the cavity assembly 300, so that the electrical assembly 200 disposed in the accommodating cavity 120 can meet the electrical safety requirements.

Optionally, the base 111 may be an integrally formed part. Taking the base 111 as a plastic part as an example, the base 111 having an integral structure may be processed by injection molding. The integral molding of the base 111 is beneficial to reduce the number of parts and components of the whole cooking appliance 1 , and is also beneficial to improve the assembly efficiency during the process of assembling the bottom plate assembly 100 .

Optionally, a hand-held portion 113 is formed on the base 111, and the hand-held portion 113 is used to provide a grasping part for the assembler, so that the assembler can grasp the base 111 more stably during the process of taking or transferring the base 111. To prevent damage caused by dropping the base 111 to the ground. In a specific example, the hand-held portion 113 may be a concave structure formed on the surface of the base 111 , and the assembler's fingers can extend into the concave structure, so as to grasp the base 111 relatively stably. In another specific example, the handle portion 113 can be a handle protruding from the surface of the base 111 , and the assembler can grasp the handle, thereby improving the stability when taking the base 111 .

Optionally, a reinforcing rib (not shown in the figure) is provided on the base 111 to improve the structural strength and structural rigidity of the base 111, so that the base 111 is less prone to structural damage and deformation, thereby increasing the strength of the base 111. longevity and structural stability.

In an example of this embodiment, a receiving cavity 170 for receiving the water box assembly 180 is further formed on the bottom plate body 110 . When the cooking appliance 1 is a cooking appliance with a steam function, the cooking appliance 1 usually includes a water box assembly 180. In this example, a receiving cavity 170 is provided on the bottom plate body 110, so that the water box assembly 180 can also be integrated on the bottom plate assembly 100. Therefore, the base plate assembly 100 integrates not only the electrical components 200 but also the water box assembly 180 , thereby further improving the integration degree of the base plate assembly 100 and further expanding the functions of the base plate assembly 100 .

In one embodiment of the present application, as shown in FIGS. 3 to 6 , the base plate assembly 100 includes a base plate body 110 , a receiving cavity 120 , a power board 211 and a power cord 150 , wherein the receiving cavity 120 is formed inside the base plate body 110 , the power board 211 is arranged in the accommodating cavity 120, the power line 150 is connected with the power board 211, and the power line 150 is used to connect the power board 211 with an external power supply device (eg AC power supply). Specifically, the power cord 150 includes a power cord body 151 and a wiring structure 152 , the wiring structure 152 is formed on the power cord body 151 , the wiring structure 152 is formed on the power cord body 151 , and the wiring structure 152 is installed on the base plate body 110 superior.

According to the bottom plate assembly 100 of the present embodiment, an accommodating cavity 120 is provided inside the bottom plate body 110 , and the power board 211 of the cooking appliance 1 is disposed in the accommodating cavity 120 , so that the bottom plate assembly 100 is not only used to provide the accommodating cavity 120 for the cooking appliance The supporting function of the whole machine of 1 is also integrated with the power supply board 211 , thereby expanding the function of the base plate assembly 100 . In addition, the power cord 150 connected to the power board 211 is installed on the base plate body 110 through the wire-passing structure 152, so that the power cord 150 and the base plate assembly 100 are integrated together, compared to the conventional installation of the power cord on the cooking appliance in the prior art In the case of the rear of the cooking appliance 1, wiring space can be saved for the box assembly 500 of the cooking appliance 1, so that the box assembly 500 provides greater convenience in terms of component layout. In addition, integrating the power cord 150 on the bottom plate assembly 100 is also simpler for the assembly process, which is further beneficial to improve the assembly efficiency of the cooking appliance 1 .

In an example of this embodiment, a wire passage port 115 is formed on the bottom plate body 110 , and a card slot 1521 adapted to the wire passage port 115 is formed on the wire passage structure 152 , and the card groove 1521 can be engaged with the wire passage port 115 . The edge of the cable opening 115 restricts the movement of the power cable 150 at least in its own length direction, so that the length of the part of the power cable body 151 located inside the base plate body 110 is always kept constant, so as to avoid the occurrence of the power cable 150 being damaged. The problem of easy separation from the power board 211 when pulled accidentally.

Optionally, the shape of the wire-passing opening 115 may be a polygon, and the transverse cross-section of the wire-passing structure 152 is also a polygon. , since the cross-sections of the wire-passing opening 115 and the wire-passing structure 152 are both polygonal, the wire-passing structure 152 cannot be rotated relative to the bottom plate body 110, thereby preventing the power cord 150 from twisting during the use of the cooking appliance 1. Therefore, it is beneficial to protect the power line 150 and the power board 211 connected to the power line 150 . Further, in a preferred example, the shape of the wire-passing opening 115 is a rectangle, and correspondingly, the transverse cross-section of the wire-passing structure 152 is also a rectangle, which is beneficial to make the wire-passing structure 152 and the wire-passing opening 115 a rectangle. Easy to process, thereby improving the processing effect.

Optionally, the shape of the wire-passing opening 115 may also be an ellipse, and correspondingly, the transverse cross-section of the wire-passing structure 152 is also an ellipse. At this time, when the wire-passing structure 152 is engaged with the edge of the wire-passing opening 115 through the card slot 1521, the wire-passing structure 152 cannot rotate relative to the base plate body 110, so it can also protect the power cord 150 and the The function of the power board 211 connected to the power line 150.

In an example of this embodiment, the bottom plate assembly 100 includes a base 111 and a cover 112 , the cover 112 is connected to the top of the base 111 , and the cover 112 and the base 111 together define a receiving cavity 120 . When the base plate assembly 100 in this example is assembled, the power board 211 and the base 111 may be assembled together first, and then the cover plate 112 and the base 111 may be connected to form the base plate assembly 100 .

Optionally, the wire opening 115 is provided at the upper edge of the base 111 , that is, when making the base 111 , a gap can be machined at the upper edge of the base 111 , and the base 111 and the cover 112 will be separated in the subsequent process. After assembly, the cover plate 112 is closed on the upper edge of the notch, thereby defining the wire passage opening 115 .

In another example of this embodiment, the bottom plate body 110 includes a base 111 (without a cover plate), and when the base 111 and the cavity assembly 300 of the cooking appliance 1 are assembled, the base 111 and the bottom plate of the cavity assembly 300 jointly define out of the accommodating cavity 120 .

Optionally, the wire-passing port 115 is arranged at the upper edge of the base 111 , that is, when the base 111 is fabricated, a gap can be machined at the upper edge of the base 111 , and the base 111 and the bottom plate of the cavity assembly 300 will be connected in the subsequent process. After being assembled, the bottom plate of the cavity assembly 111 is blocked at the upper edge of the notch, thereby defining the wire passage opening 115 .

In an example of the present embodiment, a filter plate 221 and/or a frequency converter 222 are further provided in the accommodating cavity 120 . Since the filter plate 221 and the frequency converter 222 are electrical components dedicated to microwave cooking appliances, when the cooking appliance 1 is a cooking appliance with microwave function (eg microwave oven, microwave oven integrated machine, etc.), the filter plate 221 can be And/or the frequency converter 222 is also arranged in the accommodating cavity 120 , thereby further improving the integration degree of the base plate assembly 100 .

In an example of this embodiment, a water pump 231 and/or a steam generator are further provided in the accommodating cavity 120 . Since the water pump 231 and the steam generator are electrical components exclusive to steam cooking appliances, when the cooking appliance 1 is a cooking appliance with steam function (such as a steamer, an integrated steam oven, etc.), the water pump 231 and the steam generator can be connected to /or the steam generator is also arranged in the accommodating cavity 120 , thereby further improving the integration degree of the bottom plate assembly 100 .

In an example of this embodiment, a filter plate 221 and/or a frequency converter 222 are further arranged in the accommodating cavity 120 , and a water pump 231 and/or a steam generator are also arranged in the accommodating cavity 120 . When the cooking appliance 1 is a cooking appliance with both microwave function and steam function (for example, an all-in-one microwave-steam machine, an all-in-one oven-microwave-steam machine, etc.), the filter board 221 and/or the frequency converter 222, the water pump 231 and/or the steam can generate The device is also arranged in the accommodating cavity 120 , thereby further improving the integration degree of the base plate assembly 100 .

In an example of this embodiment, the bottom plate body 110 is an insulating member. In the prior art, the electrical components of the cooking appliance (such as the power supply board 211, the filter board 221, the frequency converter 222, the water pump 231, the steam generator, etc.) need to be installed in the insulating box first, and then the insulating box is integrally installed in the whole machine In comparison, the base plate body 110 in this example is an insulating member, so that electrical components such as the power supply board 221 can be directly installed in the accommodating cavity 200 of the base plate body 110 without the need for an additional insulating box, which can reduce the overall The number of machine parts, thereby reducing production costs and improving production efficiency.

In one embodiment of the present application, as shown in FIG. 7 , the bottom plate assembly 100 includes a bottom plate body 110 and a hollow structure 160 , and the hollow structure 160 is used for accommodating the microwave generating module of the cooking appliance 1 , the microwave generating module in this example. for the magnetron. Specifically, the microwave generating module may be located in the air-evacuated structure.

The bottom plate assembly 100 of the embodiment of the present application is suitable for microwave cooking appliances, that is, cooking appliances 1 with microwave function, such as microwave ovens, integrated microwave ovens, integrated microwave steam ovens, and the like. For microwave cooking utensils, the magnetron is usually arranged at the bottom of the cavity assembly 300. In the present application, a hollow structure 160 is arranged on the bottom plate assembly 100. When the bottom plate assembly 100 is installed on the box assembly 500, the hollow structure Structure 160 may house a magnetron at the bottom of cavity assembly 300 . On the other hand, the arrangement of the space-avoiding structure 160 isolates the magnetron from other structures on the bottom plate assembly 100, so that even if other structures on the bottom plate assembly 100 are loosened during the transportation of the cooking utensil, it will not Contacting the magnetron, it can be seen that the air-avoiding structure 160 also has a certain protective effect on the magnetron.

Optionally, as shown in FIGS. 3 and 4 , an accommodating cavity 120 is formed inside the bottom plate assembly 100 , and the bottom plate assembly 100 further includes an electrical component 200 disposed in the accommodating cavity 120 , wherein the electrical component 200 is mainly used for cooking The appliance 1 is an electrical component that can work normally and has certain functions, such as a power supply board 211, a frequency converter 222, a filter board 221, and the like. In this embodiment, the interior of the bottom plate assembly 100 is provided with an accommodating cavity 120, and the accommodating cavity 120 provides a mounting position for the electrical component 200 of the cooking appliance 1, so that the electrical component 200 and the bottom plate body 110 are integrated together, thereby changing the existing The power devices of the cooking utensil are installed in different parts of the whole machine, which is beneficial to reduce the number of installation modules of the cooking utensil 1 during the assembly process, thereby improving the assembly efficiency.

Further, the electrical component 200 includes a first electrical component 210 and a second electrical component 220, wherein the first electrical component 210 includes at least one power device commonly used in various types of cooking appliances, such as the power board 211, the second electrical component 220 includes at least one power device dedicated to microwave cooking utensils, such as a filter board 221, a frequency converter 222 (or a transformer), and the like. The electrical component 200 in this embodiment includes a first electrical component 210 and a second electrical component 220. Correspondingly, the cooking appliance 1 may be a microwave oven, an integrated microwave oven, an integrated microwave steam oven and other cooking appliances with microwave functions. For example, in a specific example, a power supply board 211 , a filter board 221 and a frequency converter 222 (or a transformer) are provided in the accommodating cavity 120 . In another specific example, a power supply board 211 and a filter board 221 are provided in the accommodating cavity 120 . In another different example, a power board 211 and a frequency converter 222 (or a transformer) are provided in the accommodating cavity 120 .

In an example of this embodiment, the bottom plate body 110 is an insulating member. In the prior art, the power device of the cooking appliance needs to be installed in the insulating box first, and then the insulating box is integrally installed on the whole machine. In contrast, the bottom plate body 110 in this example is an insulating part, and the electrical components 200 directly Installation in the accommodating cavity 200 inside the base plate body 110 can meet the electrical safety requirements, so that the insulating box can be eliminated, so as to reduce the number of parts of the whole machine, thereby reducing the production cost and improving the production efficiency.

Optionally, the bottom plate body 110 is a plastic part or a ceramic part. Plastic parts have good insulation properties and can meet the safety requirements of electricity consumption. In addition, plastic parts also have the characteristics of easy processing, low cost, anti-drop and anti-collision. Ceramic parts also have good insulating properties, and also have the advantages of good brightness and wear resistance. It can be understood that the base plate body 110 is not limited to using plastic parts or ceramic parts, and can also be made of insulating materials such as glass and mica.

In an example of this embodiment, the accommodating cavities 120 are distributed in a "C" shape, so that the accommodating cavities 120 are arranged around the hollow structure 160 in a semi-enclosed form. In this way, the volume of the accommodating cavity 120 can be increased as much as possible on the basis of ensuring the accommodating of the magnetron, so that the accommodating cavity 120 has enough space to install the electrical components 200 .

Further, a limiting groove 161 is formed on the side wall of the air-saving structure 160, and the limiting groove 161 is used for guiding and limiting the raised edge of the magnetron. In this embodiment, a limiting groove 161 is formed on the side wall of the air-relief structure 160 , and correspondingly, a raised edge is provided on the magnetron, and the bottom plate assembly 100 and the cavity assembly 300 of the cooking appliance 1 are assembled. During the assembly process, the raised edge needs to enter the limit slot 161, thereby ensuring that the bottom plate assembly 100 and the cavity assembly 300 are always aligned up and down during the assembly process. It can be seen that the limit slot 161 can be set during the assembly process. It plays a guiding and limiting role.

In an example of the present embodiment, a detachable bottom cover (not shown in the figure) is provided at the bottom of the bottom plate body 110 , and the bottom cover is provided below the air-saving structure 160 . In this example, a detachable bottom cover is provided at the bottom of the bottom plate body 110, and the bottom cover is arranged below the air-relief structure 160. When the user removes the bottom cover, the magnetron of the cooking appliance 1 can be exposed. This is convenient for the user to repair and maintain the magnetron. It can be seen that, in the case of removing the bottom cover, the air-avoiding structure 160 can be used as an inspection port of the magnetron.

In an example of this embodiment, the bottom plate body 110 includes a base 111 and a cover plate 112 , the cover plate 112 is connected to the top of the base 111 , and the cover plate 112 and the base 111 together define a receiving cavity 120 . When the base plate assembly 100 in this example is assembled, the electrical assembly 200 and the base 111 can be assembled together first, and then the cover plate 112 and the base 111 are connected to form the base plate assembly 100 .

In an example of this embodiment, the bottom plate body 110 includes a base 111 (without a cover plate), and when the base 111 is assembled with the cavity assembly 300 of the cooking appliance 1 , the base 111 and the bottom plate of the cavity assembly 300 together define a accommodating cavity 120 .

In an embodiment of the present application, as shown in FIG. 8 , the bottom plate body 110 of this embodiment includes a base 111 and a cover plate 112 , and a first air inlet 143 and a first air outlet 144 are further provided on the base 111 . The air inlet 143 and the first air outlet 144 are formed on the base 111 to dissipate heat from the electrical components 200 in the base body 110 . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet Electrical components 200 are respectively provided on the channels 142 .

In the bottom plate assembly 100 of this embodiment, the cooling fan 130 is placed between the first air inlet channel 141 and the first air outlet channel 142, and parts are respectively provided on the first air inlet channel 141 and the first air outlet channel 142. The electrical component 200 can dissipate heat to some electrical components through the air intake air flow in the first air intake channel 141 during the operation of the cooling fan 130 , and simultaneously dissipate heat to another part of the electrical components through the air outlet air flow in the first air outlet channel 142 . The cooling fan 130 can dissipate heat from the electrical components in the first air inlet channel 141 and the first air outlet channel 142 at the same time, so that the cooling fan 130 can be used to dissipate heat to the electrical components 200 to the maximum extent, and the efficiency of the cooling fan 130 can be improved. The heat dissipation efficiency prevents the occurrence of the problem that the heat dissipation motor 130 cannot effectively dissipate heat due to the different installation positions of the electrical components. At the same time, placing the cooling fan 130 on the base 111 can improve the integration of various components on the base 111, without additional air ducts, reducing the volume of the base 111 and reducing the difficulty of installation.

Optionally, the heating power of some of the electrical components in the first air inlet channel 141 is smaller than the heating power of another part of the electrical components disposed in the first air outlet channel 142 . Further, along the flow direction of the air flow, the electrical components can be arranged in order of heating power from small to large. This arrangement is because the cooling effect of the air inlet airflow in the first air inlet channel 141 is smaller than that of the first air outlet channel. The cooling effect of the air outlet air flow in 142 can dissipate heat from the electrical components with low heating power in the first air inlet channel 141 through the air inlet air flow in the first air inlet channel 141, and at the same time, the air inlet after a small temperature rise can be dissipated. The air flow forms an outlet air flow under the action of the cooling fan 130 , and the outlet air flow can effectively dissipate heat for the electrical components with high heating power arranged in the first air outlet channel 142 , thereby maximizing the efficiency of the cooling fan 130 .

In an example of this embodiment, as shown in FIG. 4 and FIG. 8 , the electrical component 200 further includes a first electrical component 210 , a second electrical component 220 and a third electrical component 230 . The first electrical component 210 in this embodiment includes a power board 211 , the second electrical component 220 includes a filter board 221 , a frequency converter 222 and a microwave generating module, and the third electrical component includes a water pump 231 . The above electrical components are arranged in order of heating power from small to large. The order of the electrical components is that the power supply board 211, the filter board 221, the frequency converter 222, the water pump 231 and the microwave generating module follow the flow direction of the airflow. Arrangement, wherein, the heating power of the power board 211 is much smaller than the heating power of the filter board 221, the frequency converter 222, the water pump 231 and the microwave generating module. The water pump 231 and the microwave generating module are arranged in the first air outlet channel 142 , or the filter plate 221 is arranged close to the air inlet end of the cooling fan 130 .

In an example of this embodiment, the electrical component 200 is arranged in the first air inlet channel 141, that is, the cooling fan 130 is arranged near the first air outlet 144, and the power board 211, the filter board 221, the frequency converter 222 The water pump 231 and the microwave generating module are sequentially arranged between the cooling fan 130 and the first air inlet 143 along the airflow direction, and the electrical components are dissipated by the air inlet airflow of the cooling fan 130 .

In an example of this embodiment, the electrical component 200 is arranged in the first air outlet channel 142, that is, the cooling fan 130 is arranged in a position close to the first air inlet 143, and the power board 211, the filter board 221, the frequency converter 222 The water pump 231 and the microwave generating module are sequentially arranged between the cooling fan 130 and the first air outlet 144 along the air flow direction, and the electrical components are dissipated by the air flow of the cooling fan 130 .

Wherein, since the cooking appliance 1 with microwave function is provided with a microwave generating module, when the microwave generating module is a magnetron, the magnetron is connected to the bottom of the cavity assembly 300 . In this embodiment, a space avoidance structure 160 is provided on the base 111 , the space avoidance structure 160 is correspondingly disposed with the magnetron, and the magnetron can be installed in the space avoidance structure 160 . The void structure 160 is disposed at a position near the end of the first air outlet channel 142 , so that the cover plate 112 is disconnected. The space-avoiding structure 160 is provided with a limit slot 161 for installing and fixing the magnetron, and the limit slot 161 is arranged along the flow direction of the airflow in the first air outlet channel 142, so as to facilitate the connection and fixation between the magnetron and the base 111 .

The magnetron is arranged in the air-avoiding structure 160 , and the air flow in the first air outlet channel 142 can flow through the magnetron and then flow out through the first air outlet 144 , thereby passing through the air outlet air flow in the first air outlet channel 142 . The magnetron is effectively dissipated to ensure reliable operation of the cooking appliance 1 . At the same time, since the magnetron is arranged in the first air outlet channel 144, it occupies a part of the installation space of the base 111, and there is no installation space for the steam generator in the base 111, so the steam generator is arranged on the side wall of the cavity body 310. . In addition, when the cooking appliance 1 does not have the steam function, the electric components dedicated to the steam-based cooking appliance such as the water pump 231 and the steam generator may be omitted from the above structure. When the cooking appliance 1 does not have the microwave function, the filter plate 221 , the frequency converter 222 and the microwave generating module and other electrical components dedicated to microwave cooking appliances can be omitted in the above structure, and the steam generator and the water pump 231 can be arranged on the base at the same time. 111.

Optionally, as shown in FIG. 9 , the base 111 includes a bottom plate portion 1115 , a side plate portion 1116 and a baffle portion 1117 , wherein the side plate portion 1116 is disposed upward along the outer edge of the bottom plate portion 1115 , and the baffle portion 1117 is located along the bottom plate portion 1115 The inner edge of the side plate portion 1116 and the baffle plate portion 1117 are spaced apart from each other, and a broken back-shaped structure is formed between the side plate portion 1116 and the baffle plate portion 1117 . The bottom plate portion 1115 is provided with a first air inlet 143 and a first air outlet 144, and the first air inlet 143 and the first air outlet 144 are arranged adjacent to each other.

Further, the first air inlet 143 and the first air outlet 144 are adjacently disposed on the bottom plate portion 1115, and the first air inlet 143 and the first air outlet 144 are separated by the baffle 1431, so that the air intake and the air outlet are separated from each other. Convection is formed between the air and air flow, thereby increasing the circulation speed of the air flow in the first air inlet channel 141 and the first air outlet channel 142, ensuring sufficient air flow at the first air inlet 143, and further ensuring the cooling effect of the cooling fan 130.

Optionally, as shown in FIG. 10, the cover plate 112 is also provided with a first air inlet 143 and a second air outlet 144, and the first air inlet 143 and the second air outlet 144 are also separated by a baffle 1431, and the cover plate 112 is also provided with a bottom plate portion 1115, a side plate portion 1116 and a baffle portion 1117, wherein the side plate portion 1116 is arranged downward along the outer edge of the bottom plate portion 1115, and the baffle portion 1117 is arranged downward along the inner edge of the bottom plate portion 1115, The side plate portion 1116 and the baffle portion 1117 on the cover plate 112 are spaced apart from each other, and a broken back-shaped structure is formed between the side plate portion 1116 and the baffle portion 1117 . The bottom portion 1115 of the cover plate 112 is also provided with a first air inlet 143 and a second air outlet 144, and the first air inlet 143 and the second air outlet 144 on the cover plate 112 and the first air inlet 143 on the base 111 Opposite to the second air outlet 144 , both sides of the bottom plate body 110 after the base 111 and the cover plate 112 are assembled can be air-in and air-out, thereby further improving the air flow. The first air inlet 143 on the base 111 is also provided with an air inlet grille 1432. The air inlet grille 1432 can effectively prevent insects or other tiny particles from entering the air while ensuring the air intake from the first air inlet 143. inside of the base 111 , thereby preventing damage to the electronic devices in the base 111 .

In an example of this embodiment, the cover plate 112 does not have the first air inlet 143 and the second air outlet 144 , and the air intake of the bottom plate assembly 100 is realized only through the first air inlet 143 and the second air outlet 144 on the base 111 . and out of the wind.

In an example of this embodiment, one of the cover plate 112 and the base 111 is provided without the shutter portion 1117 , and only the other one is provided with the shutter portion 1117 , and the shutter portion 1117 and the side plate portion 1116 are provided between the shutter portion 1117 and the side plate portion 1116 . The first air inlet channel 141 and the first air outlet channel 142 are limited in time.

In an example of this embodiment, one of the cover plate 112 and the base 111 is provided without the side plate portion 1116, and only the other is provided with the side plate portion 1116, and the baffle portion 1117 and the side plate portion 1116 are provided The first air inlet channel 141 and the first air outlet channel 142 are limited in time.

In an example of this embodiment, the bottom plate body 110 has no cover plate 112 structure, and the bottom plate body 110 is only provided with a base 111 . Or only set the baffle part 1117 and the side plate part 1116 on one of the base 111 and the bottom of the cavity assembly 300 , so as to limit the first air inlet channel 141 and the second air inlet between the base 111 and the bottom of the cavity assembly 300 . An air outlet channel 142 .

In an example of this embodiment, a first air inlet 143 and a first air outlet 144 are provided on the cover plate 112 , and a cooling fan 130 is provided on the communication pipeline between the first air inlet 143 and the first air outlet 144 , the cooling fan 130 is also connected to the cover plate 112 for cooling the electrical components 200 in the accommodating cavity 120 . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet The channels 142 are respectively provided with electrical components 200 , and are connected with the cover plate 112 through the base 111 to form the bottom plate component 110 .

Optionally, the cooling fan 130 is a centrifugal fan, the air inlet end of the cooling fan 130 is positioned toward the bottom plate 1115 , and the air outlet of the cooling fan 130 is positioned toward the inverter 222 . When the cooling fan 130 is in operation, the first air inlet 143 takes in air to form an intake air flow, and the power board 211 is cooled and dissipated during the flow of the intake air flow toward the cooling fan 130 . The heated air intake air flow forms an air outlet air flow under the action of the cooling motor 130 , and the air outlet air flow is discharged from the air outlet of the cooling fan 130 and flows out toward the first air outlet 144 . During the flow of the air flow toward the first air outlet 144, the frequency converter 222, the water pump 231 and the microwave generating module can be effectively dissipated. The filter plate 221 can be disposed between the cooling fan 130 and the frequency converter 222 , or at a position close to the air inlet of the cooling fan 130 , to dissipate heat through the outlet air flow or the air inlet air flow.

In an embodiment of the present application, as shown in FIGS. 11 and 12 , the bottom plate body 110 includes a base 111 and a cover 112 , and the base 111 is further provided with a first air inlet 143 , a second air inlet 147 and a first outlet The air outlet 144, the communication pipeline between the first air inlet 143 and the first air outlet 144 is provided with a cooling fan 130. The cooling fan 130 is also connected to the base 111 for cooling the electrical components 200 in the base plate body 110. . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet Electrical components 200 are respectively provided on the channels 142 . The second air inlet 147 is disposed on the bottom plate portion 1115 of the base 111 and is disposed opposite to the impeller 131 of the cooling fan 130. A second air inlet channel 145 is formed between the impeller 131 and the second air inlet 147, wherein the second air inlet channel 145 is disposed toward the impeller 131 by the bottom plate portion 1115 of the base 111, and finally points toward the outside of the paper surface of FIG. 11 .

In the bottom plate assembly 100 in this embodiment, the cooling fan 130 is placed between the first air inlet channel 141 and the first air outlet channel 142, and the first air inlet channel 141 and the first air outlet channel 142 are respectively provided with Some electrical components 200 can dissipate heat to some of the electrical components through the intake air flow in the first air intake channel 141 during the operation of the cooling fan 130 , and simultaneously dissipate heat to the other part through the exhaust air flow in the first air outlet channel 142 . The electrical components dissipate heat, so that the heat dissipation fan 130 can dissipate heat to the electrical components in the first air inlet channel 141 and the first air outlet channel 142 at the same time, so that the heat dissipation fan 130 can be used to dissipate heat to the electrical components 200 to the maximum extent, and the heat dissipation fan 130 can be improved. The heat dissipation efficiency is improved to prevent the occurrence of the problem that the heat dissipation motor 130 cannot effectively dissipate heat due to the different installation positions of the electrical components. At the same time, a second air inlet 147 is also provided on the base 111. The second air inlet 147 is arranged opposite to the impeller 131 of the cooling fan 130. A second air inlet channel 145 is formed between the impeller 131 and the second air inlet 147. The arrangement of the air inlet 147 can further increase the air intake and air output of the cooling fan 130 , thereby further increasing the air flow of the cooling airflow in the base 111 , thereby improving the cooling and heat dissipation effect of the cooling fan 130 . At the same time, placing the cooling fan 130 on the base 111 can improve the integration of various components on the base 111, without additional air ducts, reducing the volume of the base 111 and reducing the difficulty of installation.

Optionally, the heating power of some electrical components in the first air inlet channel 141 is smaller than the heating power of another part of the electrical components in the first air outlet channel 142 . Further, along the flow direction of the air flow, the electrical components can be arranged in order of heating power from small to large. This arrangement is because the cooling effect of the air inlet airflow in the first air inlet channel 141 is smaller than that of the first air outlet channel. The cooling effect of the air outlet air flow in 142 can dissipate heat from the electrical components with low heating power in the first air inlet channel 141 through the air inlet air flow in the first air inlet channel 141, and at the same time, the air inlet after a small temperature rise can be dissipated. The air flow forms an outlet air flow under the action of the cooling fan 130 , and the outlet air flow can effectively dissipate heat for the electrical components with high heating power arranged in the first air outlet channel 142 , thereby maximizing the efficiency of the cooling fan 130 .

Further, as shown in FIG. 4 and FIG. 11 , the electrical component 200 further includes a first electrical component 210 , a second electrical component 220 and a third electrical component 230 . The first electrical component 210 in this embodiment includes a power board 211 , the second electrical component 220 includes a filter board 221 , a frequency converter 222 and a microwave generating module, and the third electrical component includes a water pump 231 . The above electrical components are arranged in order of heating power from small to large. The order of the electrical components is that the power board 211 , the frequency converter 222 , the water pump 231 and the microwave generating module are arranged in sequence along the flow direction of the airflow. The power board 211 is arranged in the first air inlet channel 141 , the frequency converter 222 , the water pump 231 and the microwave generating module are arranged in the first air outlet channel 142 , the air outlet of the cooling fan 130 is arranged towards the frequency converter 222 , and the filter plate 221 is connected to the first air outlet channel 142 . The frequency converters 222 are arranged on both sides of the cooling fan 130 , and the filter plate 221 dissipates heat through the air intake airflow in the second air intake channel 145 .

Optionally, as shown in FIGS. 13 to 16 , the cooling fan 130 includes an impeller 131 , a motor 132 and a motor bracket 133 . The motor bracket 133 is connected to the bottom plate portion 1115 of the bottom plate body 110 , the motor 132 is arranged on the motor bracket 133 , and the impeller The motor 131 is connected to the output shaft 1322 of the motor 132 and is arranged above the motor 132 , that is, the motor 132 is arranged closer to the bottom plate 1115 of the base 111 than the impeller 131 . A shaft hole 1337 is provided at the center of the motor bracket 133 , and the output shaft 1332 of the motor 132 can be connected to the impeller 131 through the shaft hole 1337 . There are also first mounting holes 1338 on two sides or around the rotating shaft hole 1332 for fixing the motor 132 on the motor bracket 133 through screw connection. The outer side wall of the motor bracket 133 is also provided with a plurality of second mounting holes 1339 for fixing the motor bracket 133 on the bottom plate 1115 by screw connection, so as to realize the connection and fixation of the cooling fan 130 and the base 111 . The motor bracket 133 is provided with a plurality of vents 1331 at the center position, and the plurality of vents 1331 are arranged opposite to the impeller 131. The position of the through-hole 1331 is the air inlet end of the cooling fan, and the airflow outside the base 111 can pass through the impeller. 131 enters into the impeller 131 through the second air inlet 147 and the vent 1331 in sequence, thereby forming an air intake airflow, and a second air inlet channel 145 is formed between the second air inlet 147 and the impeller 131 . The cooling fan 130 in this embodiment only includes one air outlet for delivering air to the first air outlet 144 .

Optionally, as shown in FIG. 11 , the heating power of some electrical components in the first air inlet channel 141 is smaller than the heating power of another part of the electrical components disposed in the first air outlet channel 142 . Further, along the flow direction of the air flow, the electrical components can be arranged in order of heating power from small to large. This arrangement is because the cooling effect of the air inlet airflow in the first air inlet channel 141 is smaller than that of the first air outlet channel. The cooling effect of the air outlet air flow in 142 can dissipate heat from the electrical components with low heating power in the first air inlet channel 141 through the air inlet air flow in the first air inlet channel 141, and at the same time, the air inlet after a small temperature rise can be dissipated. The air flow forms an outlet air flow under the action of the cooling fan 130 , and the outlet air flow can effectively dissipate heat for the electrical components with high heating power arranged in the first air outlet channel 142 , thereby maximizing the efficiency of the cooling fan 130 .

In an example of this embodiment, the motor bracket 133 is connected to the side plate portion 1116 of the base 111 or the cover plate 112, and the vent 1331 is disposed toward the impeller 131, the impeller 131 is placed above the motor 132, and the impeller 131 is connected to the A second air inlet channel 145 is formed between the two air inlets 147 , and the air enters through the second air inlet 147 of the bottom plate portion 1115 , thereby increasing the air flow of the cooling fan 130 .

In an embodiment of the present application, as shown in FIGS. 11 and 12 , the bottom plate body 110 includes a base 111 and a cover 112 , and the base 111 is further provided with a first air inlet 143 , a second air inlet 147 and a first outlet The air outlet 144, the communication pipeline between the first air inlet 143 and the first air outlet 144 is provided with a cooling fan 130. The cooling fan 130 is also connected to the base 111 for cooling the electrical components 200 in the base plate body 110. . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet Electrical components 200 are respectively provided on the channels 142 . The second air inlet 147 is disposed on the side plate portion 1116 of the base 111, and is disposed opposite to the impeller 131 of the cooling fan 130. A second air inlet channel 145 is formed between the impeller 131 and the second air inlet 147, wherein the second air inlet The channel 145 is provided by the side plate portion 1116 of the base 111 toward the impeller 131 , and is finally directed toward the outside of the page of FIG. 11 .

In the bottom plate assembly 100 in this embodiment, the cooling fan 130 is placed between the first air inlet channel 141 and the first air outlet channel 142, and the first air inlet channel 141 and the first air outlet channel 142 are respectively provided with Some electrical components 200 can dissipate heat to some of the electrical components through the intake air flow in the first air intake channel 141 during the operation of the cooling fan 130 , and simultaneously dissipate heat to the other part through the exhaust air flow in the first air outlet channel 142 . The electrical components dissipate heat, so that the heat dissipation fan 130 can dissipate heat to the electrical components in the first air inlet channel 141 and the first air outlet channel 142 at the same time, so that the heat dissipation fan 130 can be used to dissipate heat to the electrical components 200 to the maximum extent, and the heat dissipation fan 130 can be improved. The heat dissipation efficiency is improved to prevent the occurrence of the problem that the heat dissipation motor 130 cannot effectively dissipate heat due to the different installation positions of the electrical components. At the same time, a second air inlet 147 is also provided on the side plate portion 1116 of the base 111 . The second air inlet 147 is arranged opposite to the impeller 131 of the cooling fan 130 , and a second air inlet channel is formed between the impeller 131 and the second air inlet 147 . 145. The setting of the second air inlet 147 can further increase the air inlet and outlet air volume of the cooling fan 130, thereby further increasing the air flow of the cooling airflow in the base 111, thereby improving the cooling effect of the cooling fan 130. At the same time, placing the cooling fan 130 on the base 111 can improve the integration of various components on the base 111, without additional air ducts, reducing the volume of the base 111 and reducing the difficulty of installation.

Optionally, as shown in FIGS. 13 to 16 , the cooling fan 130 includes an impeller 131 , a motor 132 and a motor bracket 133 . The motor bracket 133 is connected to the bottom plate portion 1115 of the bottom plate body 110 , the motor 132 is arranged on the motor bracket 133 , and the impeller 131 is connected to the output shaft 1322 of the motor 132 and is arranged below the motor 132, that is, the impeller 131 is arranged closer to the bottom plate 1115 of the base 111 than the motor 132, and the impeller 131 and the motor body 1321 are respectively arranged on both sides of the motor bracket 133. A shaft hole 1337 is provided at the center of the motor bracket 133 , and the output shaft 1332 of the motor 132 can be connected to the impeller 131 through the shaft hole 1337 . There are also first mounting holes 1338 on two sides or around the rotating shaft hole 1332 for fixing the motor 132 on the motor bracket 133 through screw connection. The outer side wall of the motor bracket 133 is also provided with a plurality of second mounting holes 1339 for fixing the motor bracket 133 on the bottom plate 1115 by screw connection, so as to realize the connection and fixation of the cooling fan 130 and the base 111 . The motor bracket 133 is provided with a plurality of vents 1331 at the center position, and the plurality of vents 1331 are arranged opposite to the impeller 131. The position of the through-hole 1331 is the air inlet end of the cooling fan, and the airflow outside the base 111 can pass through the impeller. 131 enters into the impeller 131 through the second air inlet 147 and the vent 1331 in sequence, thereby forming an air intake airflow, and a second air inlet channel 145 is formed between the second air inlet 147 and the impeller 131 . The cooling fan 130 in this embodiment only includes one air outlet for delivering air to the first air outlet 144 .

In an embodiment of the present application, as shown in FIGS. 10 and 18 , the bottom plate body 110 in this embodiment includes a base 111 and a cover 112 , and the base 111 is further provided with a first air inlet 143 and a first air outlet 144, a second air outlet 148 is provided on the cover plate. The cooling fan 130 is connected to the base 111 for cooling the electrical components 200 in the base body 110 . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet Electrical components 200 are respectively provided on the channels 142 . A second air outlet channel 146 is formed between the second air outlet 148 and the cooling fan 130 , and the second air outlet channel 146 sends cooling air to the outside of the base plate assembly 100 through the second air outlet 148 , so as to cool the electrical components outside the base plate assembly 100 . Cool and dissipate heat.

In the bottom plate assembly 100 in this embodiment, the cooling fan 130 is placed between the first air inlet channel 141 and the first air outlet channel 142, and the first air inlet channel 141 and the first air outlet channel 142 are respectively provided with Some electrical components 200 can dissipate heat to some of the electrical components through the intake air flow in the first air intake channel 141 during the operation of the cooling fan 130 , and simultaneously dissipate heat to the other part through the exhaust air flow in the first air outlet channel 142 . The electrical components dissipate heat, so that the heat dissipation fan 130 can dissipate heat to the electrical components in the first air inlet channel 141 and the first air outlet channel 142 at the same time, so that the heat dissipation fan 130 can be used to dissipate heat to the electrical components 200 to the maximum extent, and the heat dissipation fan 130 can be improved. The heat dissipation efficiency is improved, and the problem that the heat dissipation cannot be effectively dissipated by the heat dissipation motor 130 is prevented from occurring due to the different installation positions of the electrical components. At the same time, a second air outlet 148 is also provided on the bottom plate assembly. A second air outlet channel 146 is formed between the second air outlet 148 and the cooling fan 130 . The second air outlet channel 146 passes through the second air outlet 148 to the outside of the bottom plate assembly 100 . The cooling airflow is delivered to cool and dissipate the electrical components outside the base plate assembly 100, and can solve the heat dissipation problem of multiple electrical components in different spatial positions at the same time, without adding additional cooling air ducts and reducing the volume of the whole machine.

Wherein, the air flow flowing out through the second air outlet 148 is mainly used to dissipate heat for the electrical components disposed between the box body assembly 500 and the cavity body assembly 300. The above-mentioned electrical components include but are not limited to furnace lamps, infrared induction devices and furnaces. One or more of the door interlock switches. Optionally, in order to make better use of the air flow out of the second air outlet 148 for cooling and heat dissipation, a separate cooling air duct can also be set between the box assembly 500 and the cavity assembly 300, and the electrical appliances that need to be cooled The components are placed in the cooling air duct, thereby increasing the heat dissipation range of the heat dissipation fan 130 .

Optionally, as shown in FIGS. 13 to 16 , the cooling fan 130 includes an impeller 131 , a motor 132 and a motor bracket 133 , the motor bracket 133 is connected to the cover plate 112 , the motor 132 is arranged on the motor bracket 133 , and the impeller 131 is connected to the motor 132 The output shaft 1322 is connected and arranged above the motor 132 , that is, the motor 132 is arranged closer to the bottom plate 1115 of the base 111 than the impeller 131 . A shaft hole 1337 is provided at the center of the motor bracket 133 , and the output shaft 1332 of the motor 132 can be connected to the impeller 131 through the shaft hole 1337 . There are also first mounting holes 1338 on two sides or around the rotating shaft hole 1332 for fixing the motor 132 on the motor bracket 133 through screw connection. The outer side wall of the motor bracket 133 is also provided with a plurality of second mounting holes 1339 for fixing the motor bracket 133 on the bottom plate 1115 by screw connection, so as to realize the connection and fixation of the cooling fan 130 and the base 111 .

Further, the motor bracket 133 includes a support plate 1334 , a first enclosure plate 1335 and a second enclosure plate 1336 . The first enclosure plate 1335 and the second enclosure plate 1336 are respectively disposed opposite to each other along the edge of the support plate 1334 . The first enclosure plate 1335 and An opposite end of the second enclosure plate 1336 forms a first air outlet end 1332 , and opposite ends of the first enclosure plate 1335 and the second enclosure plate 1336 form a second air outlet end 1333 . The first air outlet end 1332 is disposed toward the first air outlet channel 142 , and the second air outlet end 1333 is disposed toward the second air outlet channel 146 . When the cooling fan 130 is running, the air outlet air flow formed by the impeller 131 can flow into the first air outlet channel 142 through the first air outlet end 1332 , cool the electrical components in the first air outlet channel 142 and pass through the first air outlet. At the same time, the outlet air flow formed by the impeller 131 can also flow into the second air outlet channel 146 through the second air outlet end 1333, and be discharged to the outside of the base plate assembly 100 through the second air outlet 148, so as to prevent the base plate The external electrical devices of the assembly 100 are cooled, thereby realizing the problem of heat dissipation of multiple electrical devices in different spatial positions.

Further, the cross-sectional area of the first air outlet end 1332 is larger than the cross-sectional area of the second air outlet end 1333 . Since the first air outlet end 1332 is used to deliver the cooling airflow to the first air outlet channel 142 , the second air outlet end 1333 is used to deliver the cooling airflow to the outside of the base plate assembly 100 , since the electrical components in the first air outlet channel 142 The heating power is greater than the heating power of the electrical components outside the base plate assembly 100, so the demand for cooling airflow in the first air outlet channel 142 should be greater than the cooling airflow demand outside the base plate assembly 100. Therefore, the transverse direction of the first air outlet end 1332 The cross-sectional area is greater than the cross-sectional area of the second air outlet end 1333 .

Further, the height dimensions of the first enclosure plate 1335 and the second enclosure plate 1336 are respectively smaller than the height dimension of the impeller 131, so that when the impeller 131 rotates, more air intake can be obtained through the adjacent blades 1311, and further to increase the airflow of the cooling fan 130 .

Due to the existence of the filter plate 221 , the height dimension of the second air outlet end 1333 of the motor bracket 133 gradually decreases along its own extending direction. Specifically, the support plate 1334 is gradually inclined and raised along its own extension direction, and the top positions of the first enclosure plate 1335 and the second enclosure plate 1336 remain unchanged, so that the overall height dimension of the second air outlet end 1333 is reduced, and further in the second The bottom of the air outlet end 1333 provides an escape space for the filter plate 221 .

In an example of this embodiment, the motor bracket 133 is connected to the side plate portion 1116 or the bottom plate portion 1116 of the base 111 , and the impeller 131 is placed below the motor 132 , that is, the impeller 131 is closer to the bottom plate of the base 111 than the motor 132 Section 1115 is set. At this time, the first enclosure plate 1335 and the second enclosure plate 1336 are also disposed below the support plate 1334 , which can also achieve the purpose of outputting cooling airflow through the first air outlet end 1332 and the second air outlet end 1333 . Correspondingly, in order to leave an escape space for the filter plate 221, the support plate 1334 is arranged in the horizontal direction, and the first enclosure plate 1335 and the second enclosure plate 1336 are gradually inclined upward along their own extending direction, thereby causing the second air outlet end 1333 The overall height dimension is reduced, and a space for avoidance is reserved for the filter plate 221 at the bottom of the second air outlet end 1333 .

Optionally, as shown in FIG. 17 , the impeller 131 includes a blade mounting plate 1312 , a fixing ring 1313 and a plurality of blades 1311 . The other ends of the blades 1311 are connected by a fixing ring 1313 . in. By connecting the other end of the blade 1311 with the fixing ring 1313 , the air blocking amount of the impeller 131 when the air is taken in can be minimized, thereby increasing the air flow of the heat dissipation motor 130 .

Further, the width dimension of the fixing ring 1313 is smaller than or equal to the width dimension of the blade 1311 , so as to prevent the fixing ring 1313 from blocking the intake air flow of the impeller.

In an example of this embodiment, the impeller 131 may also be a common centrifugal impeller. The structure of the cooling fan 130 in this embodiment can also be used for the bottom plate assembly 100 in any of the above embodiments.

In one embodiment of the present application, as shown in FIGS. 10 and 18 , in this embodiment, the bottom plate body 110 includes a base 111 and a cover 112 , and the base 111 is further provided with a first air inlet 143 and a first air outlet 144 and the second air inlet 147, and the cover plate is provided with a second air outlet 148. The cooling fan 130 is connected to the base 111 for cooling the electrical components 200 in the base body 110 . A first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 , a first air outlet channel 142 is formed between the first air outlet 144 and the cooling fan 130 , and the first air inlet channel 141 and the first air outlet Electrical components 200 are respectively provided on the channels 142 . The second air inlet 147 is disposed on the side plate portion 1116 or the bottom plate portion 1115 of the base 111 , and is disposed opposite to the impeller 131 of the cooling fan 130 . A second air inlet channel 145 is formed between the impeller 131 and the second air inlet 147 . Wherein, the second air inlet channel 145 is provided by the bottom plate portion 1115 or the side plate portion 1116 of the base 111 toward the impeller 131 , and is finally directed toward the outside of the page of FIG. 18 . A second air outlet 146 is formed between the second air outlet 148 and the cooling fan 130 . The second air outlet 146 is used to deliver cooling airflow to the outside of the base plate assembly 100 , thereby cooling and dissipating electrical components outside the base plate assembly 100 .

In this embodiment, by disposing the first air inlet 143 , the first air outlet 144 , the second air inlet 147 and the second air outlet 148 on the bottom plate assembly 100 , the cooling fan 130 is placed in the first air inlet channel 141 and the first air outlet. Part of the electrical components 200 are arranged between the air passages 142 and on the first air inlet passage 141 and the first air outlet passage 142 respectively. The air flow dissipates heat to some electrical components, and at the same time, the air flow in the first air outlet channel 142 dissipates heat to another part of the electrical components, so that the cooling fan 130 can dissipate heat in the first air inlet channel 141 and the first air outlet channel 142. The electrical components dissipate heat at the same time, thereby maximizing the use of the cooling fan 130 to dissipate heat from the electrical components 200 , improving the cooling efficiency of the cooling fan 130 , and preventing the occurrence of the problem that the cooling motor 130 cannot effectively dissipate heat due to the different installation positions of the electrical components. At the same time, a second air inlet 147 is also provided on the base 111. The second air inlet 147 is arranged opposite to the impeller 131 of the cooling fan 130. A second air inlet channel 145 is formed between the impeller 131 and the second air inlet 147. The arrangement of the air inlet 147 can further increase the air intake and air output of the cooling fan 130 , thereby further increasing the air flow of the cooling airflow in the base 111 , thereby improving the cooling and heat dissipation effect of the cooling fan 130 . At the same time, the bottom plate assembly 100 is also provided with a second air outlet 148 . A second air outlet channel 146 is formed between the second air outlet 148 and the cooling fan 130 , and the second air outlet channel 146 is used to deliver cooling airflow to the outside of the bottom plate assembly 100 . , so as to cool and dissipate the electrical components outside the base plate assembly 100 , so as to solve the problem of heat dissipation of multiple electrical components in different spatial positions at the same time, without adding additional cooling air ducts, and reducing the volume of the whole machine.

Optionally, the cooling fan 130 includes an impeller 131 , a motor 132 and a motor bracket 133 , the motor bracket 133 is connected to the bottom plate portion 1115 of the base plate body 110 , the motor 132 is arranged on the motor bracket 133 , and the impeller 131 is connected to the output shaft 1322 of the motor 132 . The motor 132 is disposed above the motor 132 , that is, the motor 132 is disposed closer to the bottom plate 1115 of the base 111 than the impeller 131 . A shaft hole 1337 is provided at the center of the motor bracket 133 , and the output shaft 1332 of the motor 132 can be connected to the impeller 131 through the shaft hole 1337 . There are also first mounting holes 1338 on two sides or around the rotating shaft hole 1332 for fixing the motor 132 on the motor bracket 133 through screw connection. The outer side wall of the motor bracket 133 is also provided with a plurality of second mounting holes 1339 for fixing the motor bracket 133 on the bottom plate 1115 by screw connection, so as to realize the connection and fixation of the cooling fan 130 and the base 111 . The motor bracket 133 is provided with a plurality of air vents 1331 at the central position, and the plurality of air vents 1331 are arranged opposite to the second air inlet 147 . The airflow outside the base 111 can pass through the second air inlet 147 and the second air inlet 147 in turn under the action of the impeller 131 . The vent 1331 enters into the impeller 131 to form an intake air flow, and a second intake channel 145 is formed between the second intake port 147 and the impeller 131 .

Optionally, the motor bracket 133 includes a support plate 1334, a first enclosure plate 1335 and a second enclosure plate 1336. The first enclosure plate 1335 and the second enclosure plate 1336 are respectively disposed opposite to each other along the edge of the support plate 1334. The first enclosure plate 1335 One end opposite to the second enclosure plate 1336 forms a first air outlet end 1332 , and the opposite ends of the first enclosure plate 1335 and the second enclosure plate 1336 form a second air outlet end 1333 . The first air outlet end 1332 is disposed toward the first air outlet channel 142 , and the second air outlet end 1333 is disposed toward the second air outlet channel 146 . When the cooling fan 130 is running, the air outlet air flow formed by the impeller 131 can flow into the first air outlet channel 142 through the first air outlet end 1332 , cool the electrical components in the first air outlet channel 142 and pass through the first air outlet. At the same time, the outlet air flow formed by the impeller 131 can also flow into the second air outlet channel 146 through the second air outlet end 1333, and be discharged to the outside of the base plate assembly 100 through the second air outlet 148, so as to prevent the base plate The external electrical devices of the assembly 100 are cooled, thereby realizing the problem of heat dissipation of multiple electrical devices in different spatial positions.

In an example of this embodiment, the motor bracket 133 is connected to the side plate portion 1116 of the base 111 or the cover plate 112 , and the vent 1331 is arranged toward the second air inlet 147 , so that the impeller 131 is placed below the motor 132 . At the same time, the first enclosure plate 1335 and the second enclosure plate 1336 are placed under the support plate 1334, and a second air inlet channel 145 can also be formed between the impeller 131 and the second air inlet 147, and pass through the second air inlet of the side plate portion 1115. The air inlet 147 takes in the air, thereby increasing the air flow of the cooling fan 130 .

In one embodiment of the present application, as shown in FIG. 19 and FIG. 20 , the base plate assembly 100 includes a base plate body 110 , a cooling fan 130 and a plurality of electrical components. The bottom plate body 110 is provided with a first air inlet 143 and a first air outlet 144. The cooling fan 130 is arranged in the bottom plate body 110. A first air inlet channel 141 is formed between the cooling fan 130 and the first air inlet 143. A first air outlet channel 142 is formed between the first air outlets 144 . A part of the electrical components are arranged in the first air inlet channel 141 and corresponding to the first air inlet 143 , and another part of the electrical components are arranged in the first air inlet channel 143 and/or the first air outlet channel 142 .

According to the bottom plate assembly 100 of the present embodiment, by disposing the cooling fan 130 in the bottom plate body 110, and providing the first air inlet 143 and the first air outlet 144 on the bottom plate body 110, the cooling fan 130 and the first air inlet 143 are formed. A first air inlet channel 141 is formed between the cooling fan 130 and the first air outlet 144, and a first air outlet channel 142 is formed between the cooling fan 130 and the first air outlet 144. In the first air inlet channel 141 and/or the first air outlet channel 142, the air inlet and/or outlet air of the cooling fan 130 can effectively dissipate and cool multiple electrical devices at the same time, thereby improving the cooling effect of the cooling fan 130. Ensure the reliable operation of the electrical components in the base plate assembly 100 .

At the same time, some electrical components are arranged in the first air inlet channel 141 and corresponding to the first air inlet 143, so that the air intake from the first air inlet 143 can directly act on some electrical components, thereby improving the cooling effect and reducing the The length design of the first air inlet channel 141 improves the space utilization rate in the bottom plate body 110 .

In addition, in the prior art, the power device of the cooking utensil needs to be installed in the insulating box first, and then the insulating box is integrally installed on the whole machine. Compared with that, the bottom plate body 110 in this embodiment is an insulating part, and more The electrical components can be directly installed inside the base plate body 110 to meet the electrical safety requirements, so that the insulating box can be eliminated, so as to reduce the number of parts of the whole machine, thereby reducing the production cost and improving the production efficiency.

In an example of this embodiment, the bottom plate body 110 is specifically a plastic part or a ceramic part. The plastic part has good insulation properties and can meet the requirements of electrical safety; Anti-drop and anti-collision features. Ceramic parts also have good insulating properties, and also have the advantages of good brightness and wear resistance. It can be understood that the base plate body 110 is not limited to using plastic parts or ceramic parts, and can also be made of insulating materials such as glass and mica.

Optionally, the bottom plate body 110 includes a base 111 and a cover plate 112 , the base 111 includes a bottom plate portion 1111 , a side plate portion 1112 and a baffle portion 1113 , wherein the side plate portion 1112 is disposed upward along the outer edge of the bottom plate portion 1111 , and the baffle portion 1113 is disposed upward along the middle position of the bottom plate portion 1111 , and the side plate portion 1112 and the baffle portion 1113 are spaced apart from each other to form a first air inlet channel 141 and a first air outlet channel 142 . The cover plate 112 is of an L-shaped structure, and the cover plate 112 is covered above the first air inlet channel 141 and the first air outlet channel 142 and is connected to the base 111 .

Specifically, the first air inlet 143 is arranged on the bottom plate portion 1111 and is arranged corresponding to one end of the cover plate 112 of the L-shaped structure, and the first air outlet 144 is arranged on the side plate portion 1112 and is arranged in correspondence with the other end of the cover plate 112 of the L-shaped structure Correspondingly, the bottom plate 1111 is provided with a fan mounting seat for installing the cooling fan 130, a first air inlet channel 141 is formed between the first air inlet 143 and the cooling fan 130 on the fan mounting seat, and the first air outlet 144 is installed with the fan A first air outlet channel 142 is formed between the cooling fans 130 on the seat, and the direction indicated by the black straight arrow in FIG. The first air inlet 143 sucks air from the bottom of the bottom plate portion 1111, and is used to cool a plurality of electrical components in the first air inlet channel 141 and the first air outlet channel 142, and is formed by cooling the plurality of electrical components. The hot air is discharged through the side plate portion 1112 , so that the hot air will not be condensed on the bottom of the bottom plate portion 1111 , so as to ensure the best heat dissipation effect of the bottom plate assembly 100 and the cooking utensil 1 .

Specifically, the first air inlet 143 in this embodiment has a mesh structure, so that the air is fed through a plurality of mesh holes, and at the same time, large particles of debris will not enter the interior of the bottom plate body 110 because the opening of the first air inlet 143 is too large. Damage to electrical components.

In other examples of this embodiment, the first air inlet 143 is a square or circular opening structure, and an air intake grille is provided at the opening structure, so as to ensure the air intake volume and prevent the entry of large particles of debris. into the bottom plate body 110 , causing damage to the electrical components.

Optionally, the plurality of electrical components in this embodiment include a power supply board 211, a filter board 221, and a frequency converter 222. Meanwhile, since the cooking appliance 1 in this embodiment also has a microwave function and a steam function, the bottom plate assembly 100 in this embodiment also has a microwave function and a steam function. There are also a steam generator 190 and a microwave generator (not shown in the figure) inside. Among them, the power board 211, the filter board 221, the frequency converter 222 and the magnetron (not shown in the figure) in the microwave generator are sequentially arranged in the first air inlet channel 141 and the first air outlet channel 142 along the airflow direction, The above-mentioned electrical components are arranged in order according to the heating power of each electrical component from small to large, so as to ensure that each electrical component in the base plate assembly 100 achieves an optimal heat dissipation effect.

Optionally, the power board 211 and the filter board 221 are sequentially arranged in the first air inlet channel 141 , and the power board 211 is arranged corresponding to the first air inlet 143 , that is, the power board 211 is arranged directly above the first air inlet 143 . . The cold air entering the first air inlet channel 141 from the first air inlet 143 can directly act on the power board 211 to improve the heat dissipation effect of the power board 211 , and at the same time, the length design of the air inlet channel is reduced, and the bottom plate body 110 is improved. space utilization within. The filter plate 221 is disposed behind the power board 211 along the airflow direction, and is disposed at the air inlet end of the cooling fan 130 , and the filter plate 221 is dissipated by the intake air flow of the cooling fan 130 . At the same time, the first air inlet channel 141 is also provided with a power cord 150. The power cord 150 is electrically connected to the power board 211. The plug end of the power cord 150 can extend to the outside of the base plate body 110 and be connected to the power socket. Thus, the power supply board 211 is supplied with power, and the normal working process of each power device in the cooking appliance 1 is ensured.

Optionally, the frequency converter 222 and the magnetron are arranged in the first air outlet channel 142 , and the first air outlet 144 is arranged in the side plate portion 1112 and is arranged corresponding to the magnetron. The cooling air flow in the first air outlet 142 cools the inverter 222 and the magnetron to dissipate heat to form a hot air flow, and the hot air is directly discharged to the outside of the base plate assembly 100 through the first air outlet 142 . Since the magnetron needs to emit microwaves into the cooking cavity, in order to prevent the cover plate 112 from blocking the microwave emission process, there is no cover plate above the magnetron to form an air-avoiding structure. Along the flow direction of the airflow in the first air outlet channel 142 , the rear end of the cover plate 112 only extends above the inverter 222 to shield the inverter 222 .

Optionally, if the cooking appliance 1 has no microwave function, the magnetron on the bottom plate portion 1111 is correspondingly cancelled. Correspondingly, the first air outlet 142 may be provided corresponding to the frequency converter 222 , so that the hot air formed after the cooling airflow dissipates the heat from the frequency converter 222 is directly discharged to the outside of the base plate assembly 100 through the first air outlet 142 .

Optionally, as shown in FIGS. 13 to 16 , the cooling fan 130 includes an impeller 131 , a motor 132 and a motor bracket 133 . The motor bracket 133 is connected to the bottom plate portion 1115 of the bottom plate body 110 , the motor 132 is arranged on the motor bracket 133 , and the impeller The motor 131 is connected to the output shaft 1322 of the motor 132 and is arranged above the motor 132 , that is, the motor 132 is arranged closer to the bottom plate 1115 of the base 111 than the impeller 131 . A shaft hole 1337 is provided at the center of the motor bracket 133 , and the output shaft 1332 of the motor 132 can be connected to the impeller 131 through the shaft hole 1337 . There are also first mounting holes 1338 on two sides or around the rotating shaft hole 1332 for fixing the motor 132 on the motor bracket 133 through screw connection. The outer side wall of the motor bracket 133 is also provided with a plurality of second mounting holes 1339 for fixing the motor bracket 133 on the bottom plate 1115 by screw connection, so as to realize the connection and fixation of the cooling fan 130 and the base 111 . The motor bracket 133 is provided with a plurality of vents 1331 at the center position, and the plurality of vents 1331 are arranged opposite to the impeller 131. The position of the through-hole 1331 is the air inlet end of the cooling fan, and the airflow outside the base 111 can pass through the impeller. 131 enters into the impeller 131 through the second air inlet 147 and the vent 1331 in sequence, thereby forming an air intake airflow, and a second air inlet channel 145 is formed between the second air inlet 147 and the impeller 131 . The cooling fan 130 only includes an air outlet for delivering air to the first air outlet 144.

Optionally, the base 111 is further provided with an installation cavity for accommodating the water box assembly 180 , and the water box assembly 180 is inserted into the installation cavity and arranged side by side with the first air inlet channel 141 . Since the first air inlet 143 is arranged corresponding to the power board 211 , there is no need to provide an air inlet channel for connecting the first air inlet 143 and the power board 211 above the water box assembly, so the overall height of the bottom plate assembly 100 can be effectively reduced, thereby further The overall size of the cooking device 1 is reduced accordingly or the volume of the cooking cavity or the water box assembly 180 is correspondingly enlarged, and the heating space of the cooking cavity or the endurance of the water box assembly 180 is improved, thereby effectively improving the space utilization of the cooking appliance 1 .

Optionally, the bottom plate assembly 100 is further provided with a steam generator 190 and a water pump 231 . The steam generator 190 and the water pump 231 are both disposed above the water box assembly 180 and communicate with the interior of the water box assembly 180 , so that the arrangement of the connecting pipelines with the water box assembly 180 can be reduced or shortened. The water pump 231 pumps the water in the water box assembly 180 into the steam generator 190, and the steam generator 190 is communicated with the cooking cavity through a pipeline, so as to transport the generated water vapor to the cooking cavity, so as to be used for cooking the food in the cooking cavity. Steam heating.

Optionally, in an example of this embodiment, the steam generator 190 and the water pump 231 may also be disposed on the bottom plate portion 1111 between the baffle portion 1113 and the water box assembly 180 , thereby effectively reducing the space above the water box assembly 180 The occupancy rate, accordingly, can further increase the volume of the water box assembly 180 and the cooking cavity.

Optionally, the bottom plate body 110 is further provided with a second air inlet (not shown in the figure), the second air inlet is arranged corresponding to the impeller 131 of the cooling fan 130, and a second air inlet is formed between the impeller 131 and the second air inlet. wind channel. Wherein, the second air inlet channel is provided by the bottom plate portion 1111 of the base 111 toward the impeller 131 of the cooling fan 130 . The impeller 131 is connected to the output shaft 1322 of the motor 132 and is arranged above the motor 132 , that is, the motor 132 is arranged closer to the second air inlet on the bottom plate 1111 than the impeller 131 . side. The center position of the motor bracket 133 is provided with a plurality of air vents 1331, and the plurality of air vents 1331 are arranged opposite to the impeller 131. The location of the air vents 1331 is another air inlet end of the cooling fan 130, and the air flow outside the base 111 can flow through the impeller. Under the action of 131 , the air enters into the impeller 131 through the second air inlet and the vent 1331 in sequence, thereby forming an air intake airflow, and forming a second air inlet channel between the second air inlet and the impeller 131 .

By arranging a second air inlet on the bottom plate 1111, the second air inlet is arranged opposite to the impeller 131 of the cooling fan 130, and a second air inlet channel is formed between the impeller 131 and the second air inlet. The air inlet and outlet air volumes of the cooling fan 130 are further increased, so as to further increase the air flow of the cooling airflow in the base 111 , thereby improving the cooling and heat dissipation effect of the cooling fan 130 . At the same time, placing the cooling fan 130 on the base 111 can improve the integration of various components on the base 111, without additional air ducts, reducing the volume of the base 111 and reducing the difficulty of installation.

Optionally, in an example of this embodiment, the motor bracket 133 is connected to the side plate portion 1112 or the cover plate 112 of the base 111 , and the vent 1331 is disposed toward the impeller 131 , the impeller 131 is placed under the motor 12 , and the impeller A second air inlet channel is formed between 131 and the second air inlet, and air is taken in through the second air inlet of the bottom plate portion 1111 , thereby increasing the airflow of the cooling fan 130 .

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A cooling fan, characterized in that the cooling fan comprises:

impeller;

a motor, the impeller is connected to the output shaft of the motor;

A motor bracket, the motor is arranged on the motor bracket, and at least two air outlet ends are arranged on the motor bracket.
The cooling fan according to claim 1, wherein the at least two air outlet ends comprise a first air outlet end and a second air outlet end, and the first air outlet end and the second air outlet end The ends extend in different directions.
The cooling fan according to claim 2, wherein the cross-sectional area of the first air outlet end is larger than the cross-sectional area of the second air outlet end.
The cooling fan according to claim 1, wherein the motor bracket comprises a support plate, a first enclosure plate and a second enclosure plate, the first enclosure plate and the second enclosure plate are respectively along the support plate The edges of the panels are arranged opposite to each other, the opposite ends of the first enclosure plate and the second enclosure panel form the first air outlet end, and the opposite ends of the first enclosure panel and the second enclosure panel form the first air outlet. The second air outlet end, the height dimension of the second air outlet end gradually decreases along its own extending direction.
The cooling fan according to claim 4, wherein the height dimension of the first enclosure plate and the height dimension of the second enclosure plate are both smaller than the height dimension of the impeller.
The cooling fan according to claim 1, wherein the motor bracket is provided with a ventilation hole arranged opposite to the impeller.
The cooling fan according to claim 1, wherein the impeller comprises a blade mounting plate, a fixing ring and a plurality of blades, and one end of the plurality of blades is arranged around the edge of the blade mounting plate at the edge of the blade mounting plate. A blade mounting plate, the other ends of the plurality of blades are connected by the fixing ring.
The cooling fan according to claim 7, wherein the width dimension of the fixing ring is smaller than or equal to the width dimension of the blade.
The cooling fan according to claim 1, wherein the impeller is a centrifugal fan.
A base plate assembly, characterized in that it includes:

base plate body;

an electrical component, the electrical component is arranged in the base plate body;

A cooling fan, which is arranged in the base plate body and is used for cooling the electrical components, wherein the cooling fan is the cooling fan according to any one of claims 1 to 9 .
The base plate assembly according to claim 10, wherein the base plate body is provided with a first air inlet, a first air outlet and a second air outlet, and a first air inlet is formed between the impeller and the first air inlet an air inlet channel, a first air outlet channel is formed between the impeller and the first air outlet, a second air outlet channel is formed between the impeller and the second air outlet, and the first air outlet end of the motor bracket The second air outlet end of the motor bracket is extended toward the direction of the second air outlet channel.
The base plate assembly according to claim 11, wherein the base plate body is further provided with a second air inlet, the second air inlet is arranged opposite to the impeller, and the impeller is opposite to the second air inlet The second air inlet channel is formed therebetween.
The bottom plate assembly according to claim 11, wherein some electrical components of the electrical component are arranged in the first air inlet channel, and another part of the electrical components of the electrical component are arranged in the first air outlet The heating power of the part of the electrical components in the first air inlet channel is smaller than the heating power of the other part of the electrical components in the first air outlet channel.
A cooking utensil, characterized in that it comprises:

cavity assembly;

A bottom plate assembly, the bottom plate assembly is provided below the cavity assembly, wherein the bottom plate assembly is the bottom plate assembly according to any one of claims 11 to 13 .
The cooking utensil according to claim 14, wherein the cooking utensil further comprises a casing, and an accommodating space formed between the casing and the side wall of the cavity assembly communicates with the second air outlet .
The cooking utensil according to claim 15, wherein at least one of a furnace lamp, an infrared induction device and a furnace door interlock switch is provided in the containing space formed between the casing and the side wall of the cavity. .
A bottom plate assembly for cooking utensils, characterized in that the bottom plate assembly comprises:

base plate body;

an accommodating cavity, the accommodating cavity is formed inside the bottom plate body;

a power board, the power board is arranged in the accommodating cavity;

A power cord, the power cord is connected to the power board, and the power cord includes a power cord body and a wire-passing structure formed on the power cord body, and the wire-passing structure is mounted on the base plate body.
The base plate assembly according to claim 17, characterized in that a wire passage opening is formed on the base plate body, a card slot adapted to the wire passage opening is formed on the wire passage structure, and the wire passage opening is formed on the wire passage structure. The card slot is engaged with the edge of the wire-passing opening.
The bottom plate assembly according to claim 18, wherein the shape of the wire-passing opening is a polygon and the cross-sectional shape of the wire-passing structure is also a polygon, or the shape of the wire-passing opening is an ellipse and all the The cross-sectional shape of the wire-passing structure is also elliptical.
The base plate assembly of claim 18, wherein the base plate body comprises a base and a cover, the cover is connected to the top of the base, the cover and the base together define the receiving cavity, and the wire-passing opening is arranged at the upper edge of the base.
The bottom plate assembly according to claim 18, wherein the bottom plate body comprises a base, the base and the bottom plate of the cavity assembly of the cooking utensil together define the accommodating cavity, and the wire passage port is provided at at the upper edge of the base.
The base plate assembly according to claim 17, wherein at least one of a filter board, a frequency converter, a transformer and a microwave generating module is further provided in the accommodating cavity.
The bottom plate assembly according to claim 17, wherein a water pump and/or a steam generator are further arranged in the accommodating cavity.
The bottom plate assembly according to claim 17, characterized in that a filter board and/or a frequency converter are further arranged in the accommodating cavity, and a water pump and/or a steam generator are also arranged in the accommodating cavity.
The base plate assembly according to any one of claims 17 to 24, wherein the base plate body is an insulating member.
A cooking appliance, characterized by comprising the bottom plate assembly according to any one of claims 17 to 25.
A bottom plate assembly for cooking utensils, characterized in that the bottom plate assembly comprises:

a bottom plate body, the bottom plate body is an insulating part;

an accommodating cavity, the accommodating cavity is formed inside the bottom plate body;

An electrical component is provided in the accommodating cavity.
The base plate assembly of claim 27, wherein the electrical component comprises a first electrical component, the electrical component further comprises at least one of a second electrical component and a third electrical component, wherein the first electrical component The second electrical component includes at least one electrical component dedicated to microwave cooking appliances, the third electrical component includes at least one electrical component dedicated to steam cooking utensils, and the first electrical component includes at least one microwave cooking utensil and steam cooking utensils Electrical devices commonly used in appliances.
The base plate assembly according to claim 28, wherein the first electrical component comprises a power supply board, and the second electrical component comprises at least one of a filter board and a semiconductor microwave generator, and/or a frequency converter and a transformer In one aspect, the third electrical component includes at least one of a water pump and a steam generator.
The bottom plate assembly according to claim 27, wherein a ventilation opening communicated with the receiving cavity is formed on the bottom plate body.
The bottom plate assembly according to claim 27, wherein at least two ventilation openings are formed on the bottom plate body which communicate with the accommodating cavity, and a cooling fan is arranged in the accommodating cavity.
The bottom plate assembly according to claim 31, wherein, along the direction of airflow, the electrical components in the electrical component are arranged in order of heating power from small to large.
The base plate assembly according to claim 27, wherein the base plate body is a plastic part or a ceramic part.
The base plate assembly according to claim 27, wherein the base plate body comprises a base plate and a cover plate, the cover plate is connected to the top of the base plate, and the cover plate and the base plate together define the receiving plate cavity.
The bottom plate assembly according to claim 27, wherein the bottom plate body comprises a base, and the base and the bottom plate of the cavity assembly of the cooking appliance jointly define the receiving cavity.
The base plate assembly according to claim 34 or 35, wherein the base is an integrally formed structure.
The base plate assembly of claim 34 or 35, wherein a handle is formed on the base.
The base plate assembly according to claim 1, wherein a receiving cavity for accommodating the water box assembly is further formed on the base plate body.
A cooking appliance, characterized by comprising the bottom plate assembly according to any one of claims 1 to 38.
A base plate assembly, characterized in that it includes:

a bottom plate body, the bottom plate body is provided with a first air inlet and a first air outlet;

an electrical component, the electrical component is arranged in the base plate body;

A cooling fan, which is arranged in the base plate body and is used to dissipate heat from the electrical components, a first air inlet channel is formed between the cooling fan and the first air inlet, and the cooling fan and the A first air outlet channel is formed between the first air outlets, and the electrical components are arranged in the first air inlet channel and/or the first air outlet channel.
The base plate assembly according to claim 40, wherein some electrical components of the electrical component are arranged in the first air inlet channel, and another part of the electrical components of the electrical component are arranged in the first air outlet The heating power of the part of the electrical components in the first air inlet channel is smaller than the heating power of the other part of the electrical components in the first air outlet channel.
The backplane assembly of claim 41, wherein the portion of the electrical device comprises a power strip.
The backplane assembly of claim 41, wherein the other portion of the electrical device comprises one of a transformer and a frequency converter and/or a filter board.
The soleplate assembly of claim 41, wherein the other part of the electrical device comprises a steam generator and/or a water pump.
The base plate assembly of claim 43, wherein the other part of the electrical device further comprises a microwave generating module.
The base plate assembly according to claim 40, wherein the base plate body is provided with a hollow structure for accommodating the magnetron, and the hollow structure enables the base plate body to be disconnected.
The base plate assembly according to claim 46, wherein the space-saving structure is provided with a limiting groove for fixing the magnetron.
The bottom plate assembly according to claim 40, wherein the first air inlet and the first air outlet are arranged adjacent to each other, and the air inlet direction of the first air inlet is the same as the air inlet direction of the first air outlet. Set the wind direction in the opposite direction.
The bottom plate assembly according to claim 40, wherein the first air inlet is further provided with an air intake grille.
The base plate assembly according to claim 40, wherein the base plate body is further provided with a second air inlet, the second air inlet is arranged opposite to the impeller of the heat dissipation motor, and the impeller is connected to the first air inlet. A second air inlet channel is formed between the two air inlets.
The base plate assembly according to claim 50, wherein the cooling fan further comprises a motor and a motor bracket, the motor bracket is connected to the base plate body, the motor is arranged on the motor bracket, and the impeller Connected with the output shaft of the motor, the motor support is provided with ventilation holes corresponding to the impeller.
The base plate assembly according to claim 51, wherein the impeller is arranged above the motor, and the second air inlet is arranged on the base plate portion of the base plate body.
The base plate assembly according to claim 51, wherein the impeller is arranged below the motor, and the second air inlet is arranged on a side plate portion of the base plate body.
The bottom plate assembly according to claim 40, wherein the bottom plate body comprises a base and a cover, and the base and/or the cover are provided with a structure for defining the first air inlet channel and the cover. The baffle part and the side plate part of the first air outlet channel.
The bottom plate assembly according to claim 40, wherein the bottom plate body comprises a base, and the base is provided with a baffle portion and a baffle portion for defining the first air inlet channel and the first air outlet channel. side panel.
A cooking utensil, characterized in that it comprises:

cavity assembly;

A bottom plate assembly, the bottom plate assembly is provided below the cavity assembly, wherein the bottom plate assembly is the bottom plate assembly according to any one of claims 40 to 55.
The cooking utensil according to claim 56, wherein when the bottom plate assembly is the bottom plate assembly according to any one of claims 40 to 53, the bottom surface of the cavity assembly is provided with a bottom surface for limiting the baffle part and the side plate part of the first air inlet channel and the first air outlet channel.
A bottom plate assembly for cooking utensils, characterized in that the bottom plate assembly comprises:

base plate body;

A hollow structure is formed on the bottom plate body, and the hollow structure is used for accommodating a microwave generating module of the cooking utensil.
The bottom plate assembly according to claim 58, wherein a receiving cavity is formed inside the bottom plate body, and the bottom plate assembly further comprises an electrical component disposed in the receiving cavity.
The base plate assembly of claim 59, wherein the accommodating cavities are distributed in a "C" shape.
The bottom plate assembly according to claim 58, wherein a limiting groove is formed on the side wall of the hollow structure, and the limiting groove is used for guiding and limiting the raised edge of the microwave generating module. bit.
The bottom plate assembly according to claim 58, wherein a detachable bottom cover is disposed at the bottom of the bottom plate body, and the bottom cover is disposed below the air-saving structure.
The bottom plate assembly of claim 59, wherein the electrical assembly includes a first electrical assembly and a second electrical assembly, wherein the second electrical assembly includes at least one electrical appliance dedicated to microwave-type cooking appliances The first electrical component includes at least one electrical component that is common to all types of cooking utensils.
The backplane assembly of claim 63, wherein the first electrical assembly includes a power board, and the second electrical assembly includes one of a transformer and a frequency converter and/or a filter board.
The base plate assembly of claim 59, wherein the base plate body is an insulator.
The base plate assembly according to claim 62, wherein the base plate body is a plastic part or a ceramic part.
A cooking utensil, characterized in that it comprises:

box assembly;

a cavity assembly, the cavity assembly is formed inside the box assembly;

a microwave generating module, which is arranged at the bottom of the cavity assembly;

The bottom plate assembly, the bottom plate assembly is installed at the bottom of the box body assembly, the bottom plate assembly is the bottom plate assembly according to any one of claims 58 to 66, and the microwave generating module is provided at the bottom of the bottom plate assembly. in the avoidance structure.
A base plate assembly, characterized in that it includes:

a bottom plate body, the bottom plate body is provided with a first air inlet and a first air outlet;

A cooling fan, the cooling fan is arranged in the base plate body, a first air inlet channel is formed between the cooling fan and the first air inlet, and a first outlet is formed between the cooling fan and the first air outlet air channel;

A plurality of electrical components, some of the electrical components are arranged in the first air inlet channel and corresponding to the first air inlet, and another part of the electrical components are arranged in the first air inlet channel and/or the first air inlet channel. into the first air outlet channel.
The bottom plate assembly according to claim 68, wherein the bottom plate assembly further comprises a water box, and the water box and the first air inlet channel are arranged side by side inside the bottom plate body.
The bottom plate assembly according to claim 68, wherein the first air inlet is provided on the bottom surface of the bottom plate body, and the first air outlet is provided on the side surface of the bottom plate body.
The bottom plate assembly according to claim 68, wherein the first air inlet is a mesh structure, or the first air inlet is a structure in which an opening is provided with an air inlet grille.
The base plate assembly according to claim 68, wherein the part of the electrical components is a power board, and the power board is arranged in the air inlet channel and corresponding to the first air inlet.
The base plate assembly according to claim 68, wherein the other part of the electrical components is disposed in the first air inlet channel and the first air outlet channel, and the other part of the electrical components includes One of a transformer and a frequency converter and/or a filter plate, the transformer or the frequency converter is arranged in the first air outlet channel, and the filter plate is arranged in the first air inlet channel.
The soleplate assembly of claim 68, wherein the soleplate assembly further comprises a steam generator and/or a microwave generator disposed in the soleplate body.
The base plate assembly according to claim 68, wherein the base plate body is further provided with a second air inlet, the second air inlet is arranged corresponding to the impeller of the cooling fan, and the impeller is connected to the first air inlet. A second air inlet channel is formed between the two air inlets.
The base plate assembly of claim 68, wherein the base plate body is an insulator.
A cooking utensil, characterized in that it comprises:

cooking cavity;

A bottom plate assembly, the bottom plate assembly is provided below the cooking cavity, wherein the bottom plate assembly is the bottom plate assembly according to any one of claims 68 to 76 .