CN112754313B

CN112754313B - Air duct assembly and cooking appliance

Info

Publication number: CN112754313B
Application number: CN202011638335.8A
Authority: CN
Inventors: 任孟珂; 林健; 任志文
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-06-07
Anticipated expiration: 2040-12-31
Also published as: CN112754313A

Abstract

The invention provides an air duct assembly and a cooking appliance. The wind channel subassembly is used for cooking utensil, includes: first wind channel, second wind channel, air current drive assembly and partition portion. At least part of the first air channel is arranged in the first area, at least part of the second air channel is arranged in the second area, and the second air channel is communicated with the first air channel. The airflow driving assembly is used for driving air to enter the first air channel and to be discharged through the second air channel. The partition partitions the first region and the second region to restrict air flow between the first region and the second region. The invention realizes the heat dissipation of the cooking utensil through the air duct assembly, has simple structure, reduces the cost of the cooking utensil, and ensures that the cooking utensil can meet the use requirements of different environments.

Description

Air duct assembly and cooking appliance

Technical Field

The invention relates to the technical field of heat dissipation, in particular to an air duct assembly and a cooking appliance.

Background

When the related art dispels the heat to cooking utensil, often satisfy the required amount of wind of cooking utensil heat dissipation through the mode of outside wind channel air inlet, restricted cooking utensil's service environment.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems.

To this end, a first object of the present invention is to provide an air duct assembly.

A second object of the present invention is to provide a cooking appliance.

In order to achieve the first object of the present invention, the technical solution of the present invention provides an air duct assembly for a cooking appliance, comprising a first air duct, at least a part of which is arranged in a first area; at least part of the second air duct is arranged in the second area, and the second air duct is communicated with the first air duct; the airflow driving assembly is used for driving air to enter the first air channel and be discharged through the second air channel; a partition that partitions the first region and the second region to restrict air from flowing between the first region and the second region.

First wind channel and second wind channel set up respectively in first region and second region among this technical scheme, have increased the area of contact of wind channel subassembly with cooking utensil, and then improve the radiating effect of wind channel subassembly to cooking utensil. And realized the circulation interaction of wind channel subassembly inside air and wind channel subassembly outside air, and then played for cooking utensil radiating effect, need not additionally to set up other parts and can realize the heat dissipation to cooking utensil, reduce cooking utensil cost, make cooking utensil can satisfy the user demand of different environment simultaneously, improved cooking utensil's use flexibility.

In addition, the technical solution provided by the above technical solution of the present invention may further have the following additional technical features:

in the above technical solution, the air duct assembly further includes a third air duct, and the third air duct is communicated with one end of the second air duct, which is far away from the first air duct; wherein air entering the second air duct via the first air duct is discharged through a third air duct which is inclined with respect to the second air duct.

This technical scheme is through setting up the third wind channel, and the third wind channel is for the slope of second wind channel for the air current can pass through third wind channel transform flow direction and discharge cooking utensil, has improved the suitability of wind channel subassembly, makes the wind channel subassembly can satisfy different grade type cooking utensil's user demand.

In any of the above technical solutions, the third air duct includes an air inlet end, and the air inlet end is communicated with the second air duct; the air outlet end is communicated with the external atmosphere; the contraction part is arranged between the air inlet end and the air outlet end; the cross sectional area of any position of the contraction part is smaller than the cross sectional area of the air inlet end and smaller than the cross sectional area of the air outlet end.

This technical scheme is through setting up the constriction for the velocity of flow of air reduces after increasing earlier in the third wind channel, when improving air-out wind channel subassembly air-out efficiency, the air flow rate of air-out end department has been reduced, and then reduce the air loss that the air current caused because of striking the baffle of air-out end department, the whole air output of wind channel subassembly has been improved, and then improve the radiating effect of wind channel subassembly to cooking utensil, and reduce the noise of air-out end department, cooking utensil's performance is improved.

Among any one of the above-mentioned technical scheme, the position that sets up of air inlet end is higher than the position that sets up of air-out end.

The position of air inlet end is higher than the position of air-out end among this technical scheme for air in the third wind channel can be under the effect of gravity via air-out end discharge cooking utensil, has further improved the flow velocity of air in the third wind channel, and then improves the radiating efficiency of wind channel subassembly to cooking utensil.

In any of the above technical solutions, the air outlet end is provided with a first air outlet, and the width range of the first air outlet is 2 mm to 10 mm.

In this technical scheme, the width scope that sets up first air outlet is 2 millimeters to 10 millimeters, has avoided debris such as dust to get into the wind channel subassembly via first air outlet, promotes the performance of wind channel subassembly. The width scope that sets up first air outlet simultaneously is 2 millimeters to 10 millimeters, has improved cooking utensil's structural integrity, avoids first air outlet restriction cooking utensil's installation and service environment, and then improves cooking utensil's use flexibility.

In any of the above technical solutions, the second air duct is provided with a second air outlet, and air in the second air duct enters the second area through the second air outlet.

The second air outlet sets up on the second wind channel among this technical scheme for in the second wind channel the air via the second air outlet discharge and enter into the second region, realize the heat dissipation to the second region, further improved the radiating effect of wind channel subassembly to cooking utensil.

In any of the above technical solutions, the second air duct is provided with an air return opening, and air in the second area enters the second air duct through the air return opening.

Be equipped with the return air inlet on the second wind channel among this technical scheme, the air in the second region can get into the second wind channel through the return air inlet to discharge cooking utensil under airflow drive assembly's effect, realized in the second region the circulation of air in air and the second wind channel alternately, promote the air flow in the wind channel subassembly, further improve the radiating effect of wind channel subassembly to cooking utensil.

In any of the above technical solutions, the length range of the second air outlet is 35 mm to 45 mm; and/or the width range of the second air outlet is 20 mm to 30 mm; and/or the cooking appliance comprises a control device, and the distance between the second air outlet and the control device ranges from 200 mm to 210 mm; and/or the cooking appliance comprises a side wall, the distance between the second air outlet and the side wall being in the range 175 mm to 185 mm.

This technical scheme is through length, width, the second air outlet that sets up the second air outlet to the distance between the controlling means and the distance between second air outlet to the lateral wall for the air can dispel the heat to controlling means by the second air outlet egress opening by the at utmost, and extension controlling means's life improves cooking utensil's performance.

In any of the above technical solutions, the second air duct is disposed in an upper region of the first air duct and is bent with respect to the first air duct.

Second wind channel setting is regional at the upper portion in first wind channel among this technical scheme to buckle for first wind channel, make the wind channel subassembly can laminate cooking utensil, and then improve the radiating effect of wind channel subassembly to cooking utensil.

In any one of the above technical solutions, the first air duct extends from any side of the cooking appliance to the other side of the cooking appliance.

First wind channel extends from cooking utensil's arbitrary side direction cooking utensil's of cooking utensil opposite side among this technical scheme and arranges, has increased wind channel subassembly and cooking utensil's area of contact, and then improves the radiating effect of wind channel subassembly to cooking utensil.

In any one of the above technical solutions, the first air duct is provided with a first air inlet and a second air inlet, the first air inlet is disposed in a side region of the cooking appliance, and the second air inlet is disposed in a bottom region of the cooking appliance.

First wind channel includes first air intake and second air intake among this technical scheme, has increased the intake in first wind channel, and then improves first wind channel to cooking utensil's radiating efficiency. And, first air intake sets up in cooking utensil's lateral zone for the air that gets into via first air intake can dispel the heat to the cooking utensil lateral wall. The second air intake sets up in cooking utensil's bottom region, and the cold air that gets into via the second air intake can dispel the heat to cooking utensil's bottom, further improves the radiating effect of wind channel subassembly.

In any of the above technical solutions, the airflow driving assembly includes a first airflow driving assembly, and the first airflow driving assembly is configured to generate negative pressure in the first area to drive air to enter the first air duct; and the second air flow driving assembly is used for sending the air from the first air duct into the second air duct.

According to the technical scheme, the first air flow driving assembly can drive air to enter the first air channel through the first air inlet and the second air inlet, the second air flow driving assembly drives air to enter the second air channel through the first air channel, the air inlet amount of the air channel assembly is increased, the flowing speed of the air in the air channel assembly is increased, and the heat dissipation effect of the air channel assembly on a cooking appliance is further improved.

In any of the above technical solutions, the first airflow driving assembly is disposed in the first air duct; the second airflow driving assembly is arranged in the second air duct or between the first air duct and the second air duct.

According to the technical scheme, the first air flow driving assembly is arranged in the first air channel, so that the air inflow of the first air channel is improved. The second airflow driving assembly is arranged in the second air channel, so that the speed of air entering the second air channel through the first air channel is increased, and the reliability of the air channel assembly is further improved.

In order to achieve the second object of the present invention, the technical solution of the present invention provides a cooking appliance, including a cooking appliance body; like any one above-mentioned technical scheme's wind channel subassembly, the wind channel subassembly is used for dispelling the heat to the cooking utensil body, consequently has any one above-mentioned technical scheme's whole beneficial effect, and no longer repeated here.

among the above-mentioned technical scheme, the cooking utensil body includes electronic component, and electronic component locates the partition portion.

This technical scheme sets up electronic component on the partition portion, has realized the wind channel subassembly to electronic component's heat dissipation, prolongs electronic component's life, improves cooking utensil's performance.

In any of the above technical solutions, the cooking appliance is at least one of the following: oven, steam ager, microwave oven, evaporate roast all-in-one.

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

Drawings

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

FIG. 1 is a schematic view of a cooking apparatus according to the related art;

FIG. 2 is a second schematic view of a cooking apparatus according to the related art of the present invention;

FIG. 3 is a third schematic view of a cooking apparatus according to the related art of the present invention;

FIG. 4 is a schematic structural view of a cooking appliance according to some embodiments of the present invention;

fig. 5 is a second schematic structural view of a cooking appliance according to some embodiments of the present invention;

fig. 6 is a third schematic structural view of a cooking appliance according to some embodiments of the present invention;

FIG. 7 is a fourth schematic structural view of a cooking device according to some embodiments of the present invention;

FIG. 8 is a fifth schematic structural view of a cooking device according to some embodiments of the present invention;

FIG. 9 is a sixth schematic structural view of a cooking device according to some embodiments of the present invention;

fig. 10 is a schematic view of a second outlet according to some embodiments of the present invention;

fig. 11 is a seventh schematic structural view of a cooking appliance according to some embodiments of the present invention;

fig. 12 is an eighth schematic structural view of a cooking appliance according to some embodiments of the present invention.

Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

100': air duct assembly in related art, 130': airflow driving assembly in related art, 200': a cooking appliance in the related art.

Wherein, the corresponding relationship between the reference numbers and the names of the components in fig. 2 is:

200": a cooking appliance in the related art.

Wherein, the correspondence between the reference numbers and the component names in fig. 3 is:

200'": a cooking appliance in the related art.

Wherein, the correspondence between the reference numbers and the part names in fig. 4 to 12 is:

100: air duct assembly, 110: first air passage, 112: first region, 114: first intake vent, 116: second air intake, 120: second air duct, 122: second region, 124: second outlet, 126: air return opening, 130: airflow drive assembly, 132: first airflow actuation assembly, 134: second airflow driving assembly, 140: partition, 150: third air duct, 152: air intake end, 154: air outlet end, 156: constriction, 158: first outlet, 160: width, 200: cooking appliance, 210: cooking appliance body, 212: control device, 214: side wall, 216: electronic component, L1: first length, L2: second length, L3: third length, L4: a fourth length.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The air duct assembly 100 and the cooking appliance 200 according to some embodiments of the present invention are described below with reference to fig. 4 to 12.

Example 1:

as shown in fig. 4 and 5, the present embodiment provides an air duct assembly 100 for a cooking appliance 200, including a first air duct 110, a second air duct 120, an airflow driving assembly 130, and a partition 140. At least a portion of the first air chute 110 is disposed in the first region 112. At least a portion of the second air duct 120 is disposed in the second region 122, and the second air duct 120 is in communication with the first air duct 110. The airflow driving assembly 130 is used for driving air into the first air duct 110 and discharging the air through the second air duct 120. The partition 140 partitions the first region 112 and the second region 122 to restrict air flow between the first region 112 and the second region 122.

In this embodiment, the cooking appliance 200 may be an electric oven, a microwave oven, or the like, and is used for heating food materials to achieve a cooking process for the food materials. It is understood that the cooking appliance 200 includes a cooking appliance body 210, and the cooking appliance body 210 is surrounded and defined by a top plate, side plates, a back plate, and a bottom plate. The cooking appliance body 210 generates a large amount of heat during operation, and the air duct assembly 100 is used for dissipating heat from the cooking appliance body 210 to ensure the normal operation of the cooking appliance 200.

In some embodiments of the present embodiment, the side plates of the cooking utensil body 210 may be a curved structure that is recessed inwards, so as to increase the contact area between the cooking utensil body 210 and the air, and further improve the heat dissipation effect of the cooking utensil 200.

In the present embodiment, the first air duct 110 and the second air duct 120 are communicated with each other, and it is understood that the first air duct 110 includes an air inlet and the second air duct 120 includes an air outlet. The external air enters the first air duct 110 through the inlet under the action of the airflow driving assembly 130, and is discharged through the second air duct 120, so that the circulation interaction between the air inside the air duct assembly 100 and the air outside the air duct assembly 100 is realized, and the heat dissipation function for the cooking utensil 200 is further realized.

In some embodiments of the present embodiment, the second air duct 120 may communicate with the outside, and then the air in the second air duct 120 may be discharged out of the cooking appliance 200. The second air duct 120 may also communicate with the second region 122, so that air exhausted from the second air duct 120 may enter the second region 122, and heat dissipation of the second region 122 is achieved.

In other embodiments of this embodiment, the number of the first air duct 110 and the second air duct 120 may be one or more, and the number of the first air duct 110 and the number of the second air duct 120 may be the same or different.

In some embodiments of the present embodiment, the first air duct 110 and the second air duct 120 may be an integrated structure, so as to improve the usability of the air duct assembly 100. The first air duct 110 and the second air duct 120 can also be connected by bolts, buckles, and the like, which is convenient for installation and maintenance.

The partition 140 partitions the first region 112 and the second region 122 in the present embodiment, and it is understood that the first region 112 and the second region 122 may be a top, side or bottom region of the cooking appliance 200, and the like. In some embodiments of the present embodiment, the back area of the cooking appliance 200 may be the first area 112 and the top area may be the second area 122. In some other embodiments of the present embodiment, the side area of the cooking appliance 200 may be the first area 112, and the bottom area of the cooking appliance 200 may be the second area 122.

In this embodiment, the first air duct 110 and the second air duct 120 are respectively disposed in the first region 112 and the second region 122, so that the contact area between the air duct assembly 100 and the cooking appliance 200 is increased, and the heat dissipation effect of the air duct assembly 100 on the cooking appliance 200 is further improved.

In some embodiments of the present embodiment, the partition 140 may be a baffle, a sealing strip, or the like, which functions to prevent air from flowing in the first region 112 and the second region 122.

It will be appreciated that when the airflow driving assembly 130 is operated, a negative pressure is generated in the first region 112, and air enters the first air duct 110 under the action of the negative pressure. The partition 140 partitions the first region 112 and the second region 122, so that air in the second region 122 cannot enter the first region 112 under the action of the airflow driving assembly 130. The air in the first air duct 110 is discharged through the second air duct 120 under the action of the airflow driving assembly 130, as shown by the arrow direction in fig. 4, so that the air inside the air duct assembly 100 and the air outside the air duct assembly 100 are circularly interacted, and the heat dissipation function of the cooking appliance 200 is further achieved.

In some embodiments of the present embodiment, the airflow driving assembly 130 may be a fan or an air pump. The number of airflow drive assemblies 130 may be one or more to improve the intake and exhaust efficiency of the air chute assembly 100.

The circulation of the inside air of wind channel subassembly 100 and the outside air of wind channel subassembly 100 has been realized alternately to this embodiment, and then plays for cooking utensil 200 radiating effect, need not additionally to set up other parts and can realize the heat dissipation to cooking utensil 200, reduces cooking utensil 200 cost, makes cooking utensil 200 can satisfy the user demand of different environment simultaneously, improves cooking utensil 200's use flexibility.

Example 2:

as shown in fig. 5, the present embodiment provides an air duct assembly 100, and in addition to the technical features of embodiment 1 described above, the present embodiment further includes the following technical features.

The air duct assembly 100 also includes a third air duct 150. The third air duct 150 communicates with an end of the second air duct 120 away from the first air duct 110. Wherein the air introduced into the second air duct 120 through the first air duct 110 is discharged through the third air duct 150, and the third air duct 150 is inclined with respect to the second air duct 120.

It is understood that the third air duct 150 in this embodiment may communicate with the outside of the cooking appliance 200, so that the air in the second air duct 120 is discharged out of the cooking appliance 200 through the third air duct 150. In some embodiments of the present embodiment, the third air duct 150 and the second air duct 120 may be an integrated structure, so as to improve the stability of the air duct assembly 100. The third air duct 150 may also be detachable from the second air duct 120, so as to facilitate installation and maintenance of the air duct assembly 100.

In other embodiments of the present embodiment, the cross-sectional area of the third air duct 150 is smaller than the cross-sectional area of the second air duct 120, so as to increase the flow speed of air in the third air duct 150, and further improve the exhaust efficiency of the air duct assembly 100.

In the embodiment, the third air duct 150 is arranged, and the third air duct 150 is inclined relative to the second air duct 120, so that the airflow can be changed in flow direction and discharged out of the cooking appliance 200 through the third air duct 150, the applicability of the air duct assembly 100 is improved, and the air duct assembly 100 can meet the use requirements of different types of cooking appliances 200.

Example 3:

as shown in fig. 6 and 7, the present embodiment provides an air duct assembly 100, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The third air duct 150 includes an air inlet end 152, an air outlet end 154, and a constricted portion 156. The air inlet end 152 is communicated with the second air duct 120. The air outlet end 154 is communicated with the outside atmosphere. The constriction 156 is disposed between the air inlet end 152 and the air outlet end 154. The cross-sectional area of any position of the constricted portion 156 is smaller than the cross-sectional area of the air inlet end 152 and smaller than the cross-sectional area of the air outlet end 154.

In this embodiment, the third air duct 150 includes a constricted portion 156. It will be appreciated that the cross-sectional area of the third air duct 150 decreases from the air inlet end 152 to the constriction 156, so that the velocity of the air increases. The cross-sectional area of the third air duct 150 increases from the constricted portion 156 to the air outlet end 154, so that the flow rate of air decreases.

This embodiment is through setting up constriction 156 for the velocity of flow of air reduces after increasing in the third wind channel 150 earlier, when improving air-out wind channel subassembly 100 air-out efficiency, the air flow rate of air-out end 154 department has been reduced, and then reduce the air loss that the air current caused because of striking the baffle of air-out end 154 department, the whole air output of wind channel subassembly 100 has been improved, and then improve wind channel subassembly 100 to cooking utensil 200's radiating effect, and reduce the noise of air-out end 154 department, improve cooking utensil 200's performance.

Example 4:

as shown in fig. 6, the present embodiment provides an air duct assembly 100, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The air inlet end 152 is disposed at a position higher than the air outlet end 154.

The position of air inlet end 152 is higher than the position of air outlet end 154 in this embodiment for the air in third wind channel 150 can be under the effect of gravity through air outlet end 154 discharge cooking utensil 200, has further improved the flow velocity of air in third wind channel 150, and then improves the radiating efficiency of wind channel subassembly 100 to cooking utensil 200.

Example 5:

as shown in fig. 7, the present embodiment provides an air duct assembly 100, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The air outlet 154 has a first air outlet 158, and the width 160 of the first air outlet 158 is in the range of 2 mm to 10 mm.

In this embodiment, the air outlet end 154 is provided with the first air outlet 158, and it can be understood that the first air outlet 158 is disposed on the surface of the cooking utensil 200 to prevent the first air outlet 158 from being blocked and affecting the air output of the air duct assembly 100. In some embodiments of the present invention, the position of the first air outlet 158 corresponds to the position of the air outlet end 154, so as to prevent the air flow from being impacted to cause air volume loss.

In this embodiment, air in the third air duct 150 is discharged out of the air duct assembly 100 through the first air outlet 158, so that the air duct assembly 100 and air outside the cooking appliance 200 are cyclically interacted, and the heat dissipation effect of the air duct assembly 100 is further improved.

In some embodiments of the present embodiment, the number of the first air outlets 158 may be one or more.

In other embodiments of the present embodiment, the first air outlet 158 may be disposed on a front panel of the cooking appliance 200, so as to prevent a cabinet, a wall, or the like from exhausting air blocking the first air outlet 158.

In this embodiment, the width 160 of the first air outlet 158 is set to range from 2 mm to 10 mm, so that dust and other impurities are prevented from entering the air duct assembly 100 through the first air outlet 158, and the usability of the air duct assembly 100 is improved. Meanwhile, the range of the width 160 of the first air outlet 158 is 2 mm to 10 mm, the structural integrity of the cooking appliance 200 is improved, the first air outlet 158 is prevented from limiting the installation and use environment of the cooking appliance 200, and the use flexibility of the cooking appliance 200 is further improved.

Example 6:

The second air duct 120 is provided with a second air outlet 124, and the air in the second air duct 120 enters the second area 122 through the second air outlet 124.

In this embodiment, the second air outlet 124 is disposed on the second air duct 120, so that air in the second air duct 120 is discharged through the second air outlet 124 and enters the second region 122, heat dissipation of the second region 122 is achieved, and the heat dissipation effect of the air duct assembly 100 on the cooking appliance 200 is further improved.

In some embodiments of the present embodiment, the number of the second air outlets 124 may be one or more. When the number of the second air outlets 124 is multiple, the second air outlets 124 may be disposed on the second air duct 120 at intervals, so that the air can enter the second area 122 more uniformly, and the heat dissipation effect of the air duct assembly 100 on the cooking utensil 200 is improved.

Example 7:

The second air duct 120 is provided with an air return opening 126, and the air in the second region 122 enters the second air duct 120 through the air return opening 126.

In this embodiment, the air return opening 126 is disposed on the second air duct 120, and the air in the second area 122 can enter the second air duct 120 through the air return opening 126 and be discharged out of the cooking appliance 200 under the action of the airflow driving assembly 130, so that the air in the second area 122 and the air in the second air duct 120 are circularly interacted, the air flow in the air duct assembly 100 is promoted, and the heat dissipation effect of the air duct assembly 100 on the cooking appliance 200 is further improved.

In some embodiments of the present embodiment, the number of the return air inlets 126 may be one or more. The number of the air return openings 126 may be the same as or different from the number of the second air outlet openings 124.

Example 8:

as shown in fig. 8 and 9, the present embodiment provides an air duct assembly 100, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The length of the second air outlet 124 ranges from 35 mm to 45 mm. And/or the width of the second air outlet 124 ranges from 20 mm to 30 mm. And/or the cooking appliance 200 comprises a control device 212, and the distance between the second air outlet 124 and the control device 212 ranges from 200 mm to 210 mm. And/or the cooking appliance 200 comprises a sidewall 214, and the distance between the second air outlet 124 and the sidewall 214 ranges from 175 mm to 185 mm.

As shown in fig. 10, the length of the second air outlet 124, i.e., the third length L3, in this embodiment is in a range from 35 mm to 45 mm. The width of the second air outlet 124, i.e. the fourth length L4, ranges from 20 mm to 30 mm.

As shown in fig. 8, in the present embodiment, a distance range between the second air outlet 124 and the control device 212, that is, a range of the first length L1 is 200 mm to 210 mm. It is understood that the first length L1 is a distance between the center of the second outlet 124 and the control device 212.

As shown in fig. 9, in the present embodiment, a distance between the second air outlet 124 and the sidewall 214, that is, the second length L2, ranges from 175 mm to 185 mm. It is understood that the second length L2 is the distance from the center of the second outlet 124 to the sidewall 214.

It is understood that the control device 212 is used for controlling the operation of the cooking appliance 200 in the present embodiment. In this embodiment, by setting the length and the width of the second air outlet 124, the distance between the second air outlet 124 and the control device 212, and the distance between the second air outlet 124 and the sidewall 214, the air flows out of the second air outlet 124, so that the control device 212 can be cooled to the greatest extent, the service life of the control device 212 is prolonged, and the usability of the cooking appliance 200 is improved.

In some embodiments of the present embodiment, different lengths and widths of the second air outlet 124 and different positions of the second air outlet 124 on the second air duct 120 may be set according to different sizes of the cooking appliance 200, so as to meet heat dissipation requirements of the control device 212 disposed at different positions.

In some other embodiments of this embodiment, the first length L1 may be set to be 204 mm, the second length L2 may be set to be 180 mm, the length L3 of the second air outlet 124 may be set to be 40 mm, and the width L4 of the second air outlet 124 may be set to be 23 mm, so as to improve the heat dissipation effect for the control device 212.

Example 9:

as shown in fig. 11, the present embodiment provides an air duct assembly 100, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The second air duct 120 is disposed at an upper region of the first air duct 110, and is bent with respect to the first air duct 110.

In this embodiment, the second air duct 120 is disposed at an upper region of the first air duct 110, and is bent relative to the first air duct 110, so that the air duct assembly 100 can be attached to the cooking appliance 200, and further the heat dissipation effect of the air duct assembly 100 on the cooking appliance 200 is improved.

Example 10:

The first wind tunnel 110 is extended from any side of the cooking appliance 200 to another side of the cooking appliance 200.

In this embodiment, the first air duct 110 extends from any side of the cooking appliance 200 to the other side of the cooking appliance 200, so that the contact area between the air duct assembly 100 and the cooking appliance 200 is increased, and the heat dissipation effect of the air duct assembly 100 on the cooking appliance 200 is further improved.

Example 11:

The first air duct 110 is provided with a first air inlet 114 and a second air inlet 116, the first air inlet 114 is disposed in a side region of the cooking appliance 200, and the second air inlet 116 is disposed in a bottom region of the cooking appliance 200.

In this embodiment, the first air duct 110 includes the first air inlet 114 and the second air inlet 116, which increases an air inlet amount of the first air duct 110, and further increases a heat dissipation efficiency of the first air duct 110 for the cooking utensil 200. Also, the first air intake vent 114 is disposed at a side region of the cooking appliance 200, so that air entering through the first air intake vent 114 can dissipate heat from the side of the cooking appliance 200. The second air inlet 116 is disposed at a bottom region of the cooking appliance 200, and cold air entering through the second air inlet 116 can dissipate heat from the bottom of the cooking appliance 200, so as to further improve the heat dissipation effect of the air duct assembly 100.

In some embodiments of the present embodiment, the number of the first air inlet 114 and the second air inlet 116 may be one or more. The first and

second air inlets

114 and 116 may be circular, square, triangular, etc. The first and second intake vents 114 and 116 may be identical in shape and number or different in number.

Example 12:

The airflow drive assembly 130 includes a first airflow drive assembly 132 and a second airflow drive assembly 134. The first airflow driving assembly 132 is used to generate negative pressure in the first region 112 to drive air into the first air duct 110. The second airflow driving assembly 134 is configured to move air from the first air chute 110 into the second air chute 120.

The airflow driving assembly 130 includes a first airflow driving assembly 132 and a second airflow driving assembly 134 in this embodiment, and it is understood that the first airflow driving assembly 132 can be an air draft fan to generate negative pressure in the first area 112. The second airflow driving assembly 134 may be a blower fan to drive air into the second air duct 120 through the first air duct 110 and out through the second air duct 120.

In this embodiment, the first airflow driving assembly 132 can drive air to enter the first air duct 110 through the first air inlet 114 and the second air inlet 116, and the second airflow driving assembly 134 drives air to enter the second air duct 120 through the first air duct 110, so that the air intake rate of the air duct assembly 100 is increased, the flowing speed of air in the air duct assembly 100 is increased, and the heat dissipation effect of the air duct assembly 100 on the cooking utensil 200 is further increased.

Example 13:

The first airflow driving assembly 132 is disposed in the first air duct 110. The second airflow driving assembly 134 is disposed in the second air duct 120 or between the first air duct 110 and the second air duct 120.

In the present embodiment, the first airflow driving assembly 132 is disposed in the first air duct 110, and increases the air intake amount of the first air duct 110. The second airflow driving assembly 134 is disposed in the second air duct 120, so as to increase the speed of air entering the second air duct 120 through the first air duct 110, and further improve the reliability of the air duct assembly 100.

In some embodiments of the present embodiment, the first airflow driving assembly 132 may be disposed at the first air inlet 114 to improve the efficiency of air entering the first air duct 110. The second airflow driving assembly 134 may be disposed at a connection between the first air duct 110 and the second air duct 120, so as to promote air to enter the second air duct 120 through the first air duct 110 and to be discharged through the second air duct 120, thereby further improving the heat dissipation efficiency of the air duct assembly 100 for the cooking utensil 200.

Example 14:

as shown in fig. 12, the present embodiment provides a cooking appliance 200, which includes a cooking appliance body 210, such as the air duct assembly 100 of any of the above embodiments, and the air duct assembly 100 is used for dissipating heat from the cooking appliance body 210.

The cooking appliance 200 in the present embodiment includes a cooking appliance body 210, and it can be understood that the cooking appliance body 210 is used for cooking food materials. When the cooking appliance 200 is in operation, the cooking appliance body 210 generates a large amount of heat, and the air duct assembly 100 is used for dissipating heat from the cooking appliance body 210, so that the normal operation of the cooking appliance 200 is ensured.

The cooking appliance 200 in this embodiment includes the cooking appliance body 210 in any one of the above embodiments, so that all the advantages of any one of the above embodiments are achieved, and details are not described herein.

Example 15:

as shown in fig. 12, the present embodiment provides a cooking appliance 200, and in addition to the technical features of the above embodiment, the present embodiment further includes the following technical features.

The cooking appliance body 210 includes an electronic component 216, and the electronic component 216 is provided to the partition 140.

In the embodiment, the cooking utensil body 210 includes an electronic component 216, and it is understood that the electronic component 216 may be a capacitor, a resistor, a circuit board, or the like, and generates a large amount of heat due to its characteristics when operating.

Specifically, the air in the first air duct 110 and the second air duct 120 can cool the partition 140 when flowing, and further the electronic element 216 is disposed on the partition 140, so that the heat dissipation of the air duct assembly 100 to the electronic element 216 is realized, the service life of the electronic element 216 is prolonged, and the service performance of the cooking appliance 200 is improved.

In some embodiments of the present embodiment, the electronic component 216 is disposed on the partition 140 and away from the top plate of the cooking appliance 200, so as to prevent the heat of the top plate of the cooking appliance 200 from affecting the service life of the electronic component 216.

Example 16:

as shown in fig. 9, the present embodiment provides a cooking appliance 200, and in addition to the technical features of any one of the above embodiments, the present embodiment further includes the following technical features.

The cooking appliance 200 is at least one of an oven, a steam box, a microwave oven, and a steaming and baking integrated machine.

Example 17

As shown in fig. 1, in the related art, the heat dissipation design of the cooking appliance 200 'is to draw air from the periphery and the inside of the front door panel of the cooking appliance 200' through the airflow driving assembly 130 'at the top of the cooking appliance 200', and then to discharge the air outwards through the air duct at the outlet of the airflow driving assembly 130 ', and the basic idea of the heat dissipation design is to arrange as many components needing heat dissipation as possible in the integral air duct assembly 100' to achieve the purpose of heat dissipation. The design of the air duct assembly 100 'of the cooking appliance 200' in the related art results in the need for a heat dissipation air duct at the back of the cabinet for satisfying the heat dissipation requirement of the cooking appliance 200 ', which increases the installation cost and the use threshold of the built-in cooking appliance 200'.

As shown in fig. 2, the air duct assembly 100 "of the related art has a design limitation, which results in an air outlet design larger than 10 mm on the front surface of the cooking appliance 200", and the air outlet design can seriously affect the integrity of the cooking appliance 200 "and the beauty of the installed home.

Fig. 3 shows a conventional heat dissipation form of a related art built-in cooking appliance 200' ″ without a door ventilation duct. In the related art, in order to ensure that the door panel does not leak waves or ensure good cleaning of the door panel during use of the high-temperature cooking appliance 200 '″ such as a microwave oven, an integrated heat-insulating oven door with an air duct removed from the oven door is selected for use in more and more high-temperature cooking appliances 200' ″. The air duct design enables all cooling air to enter the cavity for heat dissipation through the cabinet back air duct and the gaps below the installation allowance, theoretical analysis shows that the air inlet volume of the cabinet back air duct accounts for more than eighty percent of the total air inlet volume, but the use of the embedded oven is limited to a certain extent due to the cabinet back air duct, and the installation cost is increased. In addition, the width of the air duct of the heat dissipation air outlet of the existing embedded cooking appliance 200' is more than 10 mm, which seriously affects the integrity and the aesthetic property of the product.

For example, in order to meet the temperature rise requirement of the whole component, the heat dissipation scheme of the embedded oven in the related art is to suck and dissipate heat from the back, and particularly, the embedded cooking appliance without the door plate air inlet and heat dissipation air duct with the microwave function needs to ensure that the installed cabinet has a certain width when being installed, and the back heat dissipation air duct is provided to meet the normal use requirement, thereby increasing the installation and use cost. And user research has shown that many cabinets do not have back vents, which can create fire safety hazards during operation of the oven. On the other hand, in the related art, the whole oven has low heat dissipation degree and unreasonable heat dissipation distribution, so that the width of the air outlet on the front side of the oven can not be reduced all the time, and the integral attractiveness of the embedded cooking appliance is seriously affected.

In order to solve the above problems in the related art, the present embodiment provides an air duct assembly 100, which utilizes a low-cost manner to remove the cabinet back air duct and reduce the width of the first air outlet 158, so as to minimize the width of the front first air outlet 158 under the condition of removing the back heat dissipation air duct.

This embodiment can reduce first air outlet 158 width under the air outlet, exempts from cupboard wind channel installation simultaneously.

As shown in fig. 4 and 5, the core of the air duct assembly 100 of the present embodiment mainly includes three portions, which are the airflow driving assembly 130 and the second air duct 120 partitions 140.

In some embodiments of the present embodiment, the airflow driving assembly 130 may be a vortex fan heater assembly, the second air duct 120 may be disposed at the top of the cooking appliance 200, and the partition 140 may be an air duct baffle. The first duct 110 is provided at the back of the cooking appliance 200.

As shown in fig. 7, in the present embodiment, the partition 140 isolates the airflow driving assembly 130 from the front and the back, all of the air sucked by the airflow driving assembly 130 comes from the first area 112, a strong negative pressure region is formed at the first area 112, and the negative pressure region can allow the external cold air to enter the first air duct 110 through the first air inlet 114 and the second air inlet 116, so as to achieve the heat dissipation effect.

In some embodiments of this embodiment, the side plate of the cooking apparatus 200 may also be provided with an air inlet to further increase the air inlet amount of the first air duct 110.

Specifically, due to the negative pressure, a large amount of cold air enters the first air duct 110 through the second air inlet 116 at the bottom and the first air inlet 114 at the back, so as to dissipate heat of the electronic board at the back of the cooking appliance 200 and the windings of the airflow driving assembly 130.

In some embodiments of this embodiment, two large heating areas, namely, the high-voltage capacitor and the high-voltage diode, can be suspended above the partition 140, so as to reduce the problem of excessive temperature rise of the high-voltage capacitor caused by heat transfer in the bottom air duct.

In this embodiment, the cool air sucked from the back and the bottom of the cooking appliance 200 is blown forward by the airflow driving assembly 130 and dissipated to the electronic components such as the magnetron and the transformer at the top through the second air duct 120.

In this embodiment, an air duct baffle is added to the upper portion of the first air outlet 158, so as to change the first air outlet 158 into a very narrow 3 mm air outlet.

In this embodiment, the sharp change of the slope of the third air duct 150 near the first air outlet 158 is to make the wind speed quickly change to the same direction as the first air outlet 158, and the third air duct 150 is designed by the gradually decreasing and expanding duct width, so that the wind speed through the third air duct 150 is increased and then decreased, thereby achieving the pre-adjustment of the wind direction while decreasing the wind speed at the air outlet, decreasing the wind loss caused by the impact on the baffle and the resistance of the flow channel, increasing the whole wind outlet flow to the maximum, and enhancing the heat dissipation of the whole machine.

As shown in fig. 7, in the present embodiment, in order to dissipate heat to the area of the front control device 212, the second air outlet 124 for the control device 212 is added to the second air duct 120, and the heat dissipation effect of the front control device 212 of the second air outlet 124 is limited. In some embodiments of the present embodiment, the length L3 of the second air outlet 124 is 40 mm, the width L4 of the second air outlet 124 is 23 mm, the distance L1 from the center of the second air outlet to the control device 212 is 204 mm, and the distance L2 from the center of the second air outlet to the side plate of the transformer is 180 mm, so as to achieve the optimal heat dissipation effect for the control device 212.

The air duct assembly 100 provided by the embodiment can achieve the purpose of complete machine heat dissipation without depending on the cabinet back air duct on the premise that the front first air outlet 158 is minimized by 3 mm, and achieves the design effect of avoiding cabinet air duct installation under the extremely narrow air outlet.

In the embodiment, through the novel air duct assembly 100 of the cooking appliance 200, the more reasonable overall heat management design of the cooking appliance 200 is realized, and meanwhile, cabinet-free air duct installation and extremely narrow air outlet design are realized.

In summary, the embodiment of the invention has the following beneficial effects:

1. through setting up the wind channel subassembly, realized cooking utensil's self heat dissipation, need not additionally to set up the cupboard wind channel, reduced cooking utensil's installation cost improves cooking utensil's use flexibility.

2. The width of the first air outlet of the cooking appliance is reduced, and the integrity of the whole structure of the cooking appliance is improved.

3. Through set up the second air outlet on the second wind channel, realized improving cooking utensil's performance to the regional heat dissipation of controlling means.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

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

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air duct assembly for a cooking appliance, comprising:

the first air duct, at least part of said first air duct locates in the first area;

at least part of the second air duct is arranged in the second area, and the second air duct is communicated with the first air duct;

the second air duct is arranged in the upper area of the first air duct and is bent relative to the first air duct;

an airflow driving assembly for driving air to enter the first air duct and to be discharged through the second air duct;

a partition that partitions the first region and the second region to restrict air from flowing between the first region and the second region;

the third air duct is communicated with one end, far away from the first air duct, of the second air duct;

wherein air entering the second air duct via the first air duct is discharged through the third air duct, the third air duct being inclined with respect to the second air duct;

the first air duct is provided with a first air inlet and a second air inlet, the first air inlet is arranged in the side area of the cooking appliance, and the second air inlet is arranged in the bottom area of the cooking appliance;

the second air duct is arranged at the top of the cooking appliance.

2. The air duct assembly of claim 1, wherein the third air duct comprises:

the air inlet end is communicated with the second air channel;

the air outlet end is communicated with the external atmosphere;

the contraction part is arranged between the air inlet end and the air outlet end;

the cross sectional area of any position of the contraction part is smaller than the cross sectional area of the air inlet end and smaller than the cross sectional area of the air outlet end.

3. The air duct assembly of claim 2, wherein the air inlet end is disposed at a position higher than the air outlet end.

4. The air duct assembly of claim 2, wherein the air outlet end is provided with a first air outlet, and a width of the first air outlet is in a range of 2 mm to 10 mm.

5. The air duct assembly according to claim 1, wherein the second air duct is provided with a second air outlet, and air in the second air duct enters the second area through the second air outlet.

6. The air duct assembly of claim 5, wherein the second air duct is provided with an air return opening through which air in the second region enters the second air duct.

7. The air duct assembly of claim 5,

the length range of the second air outlet is 35 mm to 45 mm; and/or

The width range of the second air outlet is 20 mm to 30 mm; and/or

The cooking appliance comprises a control device, and the distance between the second air outlet and the control device ranges from 200 mm to 210 mm; and/or

The cooking appliance comprises a side wall, and the distance between the second air outlet and the side wall ranges from 175 mm to 185 mm.

8. The air duct assembly according to any one of claims 1-7, wherein the first air duct extends from any side of the cooking appliance to another side of the cooking appliance.

9. The air duct assembly according to any one of claims 1-7, wherein the airflow drive assembly comprises:

the first air flow driving assembly is used for generating negative pressure in the first area so as to drive air to enter the first air channel;

a second airflow drive assembly for delivering air from the first air chute into the second air chute.

10. The air duct assembly of claim 9,

the first air flow driving assembly is arranged in the first air channel;

the second airflow driving assembly is arranged in the second air duct or between the first air duct and the second air duct.

11. A cooking appliance, comprising:

a cooking appliance body;

the air duct assembly of any one of claims 1 to 10, for dissipating heat from the cooking appliance body.

12. The cooking appliance of claim 11, wherein the cooking appliance body comprises:

and the electronic element is arranged on the separating part.

13. The cooking appliance of claim 11, wherein the cooking appliance is at least one of:

oven, steam ager, microwave oven, evaporate roast all-in-one.