CN111588280A

CN111588280A - Household electrical appliance

Info

Publication number: CN111588280A
Application number: CN202010479731.4A
Authority: CN
Inventors: 张建龙; 饶博文; 张真宝; 刘彬彬; 陈升升
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: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-08-28

Abstract

The invention discloses a household appliance which comprises a cavity, a door body and a cooling device, wherein the door body can be movably connected to the front part of the cavity, a first air duct and a camera are arranged in the door body, the camera is positioned in the first air duct, the cooling device comprises a first fan and a radiating pipe, the radiating pipe is communicated with the first fan and the camera, and the radiating pipe is used for conveying air sucked by the first fan from the outside of the door body to the camera. Among the above-mentioned domestic appliance, on the one hand, the camera is located first wind channel, and first wind channel can take away the heat around the camera like this, and on the other hand, cooling device directly carries the outside cool air of the door body to the camera, makes the camera can obtain effective cooling, has satisfied the operational environment temperature requirement of camera.

Description

Household electrical appliance

Technical Field

The invention relates to the technical field of electric appliances, in particular to a household electric appliance.

Background

In the related art, the oven has an image and doneness recognition function, and particularly, the oven is provided with a camera to recognize food materials in the cavity and the doneness of the food in the cooking process. However, the camera has specific requirements for the working environment temperature, when the central temperature of the cavity is set to the maximum set value, a large amount of heat can be transmitted to the camera mounting position through the door body glass, no good door body heat dissipation system exists, and the performance and the service life of the camera can be influenced by the ultrahigh-temperature working environment temperature.

Disclosure of Invention

The embodiment of the invention provides a household appliance.

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

a cavity;

the door body can be movably connected to the front part of the cavity, a first air channel and a camera are arranged in the door body, and the camera is positioned in the first air channel; and

cooling device, cooling device includes first fan and cooling tube, the cooling tube intercommunication first fan with the camera, the cooling tube is used for making first fan is followed the outside inspiratory air of the door body is carried extremely the camera.

Among the above-mentioned domestic appliance, on the one hand, the camera is located first wind channel, and first wind channel can take away the heat around the camera like this, and on the other hand, cooling device directly carries the outside cool air of the door body to the camera, makes the camera can obtain effective cooling, has satisfied the operational environment temperature requirement of camera.

In some embodiments, the heat dissipation tube is a metal tube.

In some embodiments, the heat dissipation tube is an aluminum tube.

In some embodiments, the door body is a rectangular structure as a whole, the heat dissipation pipe includes a first section, a second section and a third section, the second section connects the first section and the third section, the first section and the third section extend along the length direction of the door body at the edge of the door body, and the second section extends along the width direction of the door body at the edge of the door body.

In some embodiments, the first fan is disposed at an edge of a lower portion of the door, and the camera is disposed at an upper portion of the door.

In some embodiments, an orthographic projection of the first fan on the lower portion of the door body is staggered from an orthographic projection of the camera on the lower portion of the door body.

In some embodiments, the household appliance includes a camera support, the camera is mounted in the first air duct through the camera support, the camera support is provided with an accommodating space, the camera is located in the accommodating space, and the radiating pipe is communicated with the accommodating space.

In some embodiments, the cooling device includes a second fan, the second fan is disposed along the edge of the lower portion of the door body and in parallel with the first fan, and the second fan is configured to suck air outside the door body to cool the heat dissipation pipe.

In some embodiments, a control box located above the door body is fixed to the front portion of the cavity, the household appliance includes an air duct piece arranged at the top of the cavity, a third fan is arranged in the air duct piece, a second air duct is formed in the air duct piece, an inlet of the second air duct is communicated with the first air duct, and an outlet of the second air duct is communicated with a gap between the top of the door body and the control box.

In some embodiments, the household appliance includes a wind deflector corresponding to the second wind duct outlet, and the wind deflector is mounted at the bottom of the control box.

In some embodiments, the second air duct includes an upper air duct and a lower air duct which are spaced apart from each other, the air duct member includes a connection space for communicating the upper air duct and the lower air duct, the third fan is located in the connection space, the lower air duct is communicated with the first air duct, and the upper air duct is communicated with a gap between the top of the door body and the control box.

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 structural view of a home appliance according to an embodiment of the present invention;

FIG. 2 is a perspective view of a door body according to an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the door body according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a door body according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a household appliance in accordance with an embodiment of the present invention;

FIG. 6 is a schematic front view of a household appliance according to an embodiment of the present invention;

fig. 7 is an enlarged view of the X portion of fig. 5.

Description of the main element symbols:

a household appliance 100;

the air conditioner comprises a cavity 11, a door body 13, a first glass plate 131, a second glass plate 132, a first air outlet 133, a first air inlet 134, a first air duct 15, a camera 17, a camera support 19, an accommodating space 191, an air conveying hole 192 and an exhaust hole 193;

a cooling device 21, a first fan 23, a first exhaust port 231, a first air inlet 233, a second fan 25, a second exhaust port 251, a second air inlet 253, a radiating pipe 27, a first section 271, a second section 272 and a third section 273;

the control box 31, the air duct member 33, the connecting space 331, the third fan 35, the second air duct 37, the inlet 371, the outlet 373, the gap 374, the upper air duct 375, the lower air duct 377 and the touch screen 39;

air deflector 41, first air guide 43, second air guide 45, air outlet channel 47.

Detailed Description

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

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The disclosure herein provides many different embodiments or examples for implementing different configurations of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 3, an embodiment of the invention provides a household appliance 100, where the household appliance 100 includes a cavity 11, a door 13, and a cooling device 21. The door 13 can be movably connected to the front portion of the cavity 11. The door 13 is provided with a first air duct 15 and a camera 17. The camera 17 is located in the first air duct 15. The cooling device 21 includes a first fan 23 and a radiating pipe 27. The heat pipe 27 is communicated with the first fan 23 and the camera 17, and the heat pipe 27 is used for conveying air sucked by the first fan 23 from the outside of the door body 13 to the camera 17.

In the household appliance 100, on one hand, the camera 17 is located in the first air duct 15, so that the first air duct 15 can take away heat around the camera 17, and on the other hand, the cooling device 21 directly conveys cool air outside the door body 13 to the camera 17, so that the camera 17 can be effectively cooled, and the requirement of the working environment temperature of the camera 17 is met.

In particular, for the home appliance 100 having the intelligent function, it is required to obtain specific state information by collecting image information of an article (such as food). In one embodiment, the household appliance 100 is an oven, and when the oven cooks food, the image information of the food can be collected and identified by the camera 17, so that whether the food meets the cooking condition can be determined. In another embodiment, the household appliance 100 is a microwave oven, and when the microwave oven cooks food, the image information of the food can be collected and identified by the camera 17, so that whether the food meets the cooking condition can be determined. The household appliance 100 may also be an electric cooker, an induction cooker, a steam box, a refrigerator, a dish washer, etc., and is not particularly limited herein.

The following embodiments are described with the home appliance 100 as an oven.

Specifically, the oven may generate a large amount of heat when cooking food, and in a case where the door 13 closes the cavity 11, the heat may be gradually conducted to the door 13, so that the temperature around the camera 17 rises. In one embodiment, the maximum operating temperature within the chamber 11 is 250 ℃ and the maximum acceptable operating ambient temperature for the camera 17 is 60 ℃. In this case, the extremely high operating temperature may cause the operating environment temperature of the camera 17 to exceed an acceptable range, affecting the operating performance and the service life of the camera 17.

Referring to fig. 3, in the embodiment shown in fig. 3, on one hand, the cooling device 21 sucks external air into the heat dissipation pipe 27 through the first fan 23, so that the air flows along the heat dissipation pipe 27 directly to the camera 17. Because camera 17 department can directly acquire the air that is used for the cooling, on the other hand, cold air also can get into first wind channel 15 from the lower part of door body 13 to take away the heat around the camera 17, can make the temperature of camera 17 can keep in normal operating temperature scope overall, guarantee that camera 17 can not receive high temperature and influence, thereby avoided causing the decay to camera 17's working property and life. In one embodiment, the cooling device 21 may reduce the operating ambient temperature of the camera head 17 to 58 ℃.

In the embodiment shown in fig. 3, the first fan 23 and the heat dissipation pipe 27 are both located in the first air duct 15, which makes the door 13 more compact. Meanwhile, the cold air in the first duct 15 can also carry away the heat of the radiating pipe 27. It is understood that in other embodiments, the first fan 23 may be located outside the first air duct 15, and the heat dissipation pipe 27 may be partially located inside the first air duct 15 and partially located outside the first air duct 15, so as to make the air flow inside the first air duct 15 smoother.

Further, the degree of cooling of the surroundings of the camera 17 can be accelerated by adjusting the rotation speed of the first fan 23. In this case, the camera 17 may be disposed at a position close to the cavity 11 in the door 13, and it is not necessary to provide a protrusion for mounting the camera 17 on the outer surface of the door 13 to ensure a large distance from the cavity 11, which may cause potential hazards (e.g., a user may be damaged by collision during use) and affect the aesthetic appearance. In one embodiment, the door body 13 is designed without a handle, so that the exterior of the door body 13 is a flat appearance plane.

In the illustrated embodiment, the first glass plate 131 is provided inside the door 13. In the case that the door 13 closes the cavity 11, the first glass plate 131 can isolate the camera 17 in the first air duct 15 from the air in the cavity 11. The camera 17 can acquire images of the food in the cavity 11 through the first glass plate 131. In one embodiment, the first glass plate 131 is an insulating glass, so that the speed of heat conduction in the cavity 11 to the camera 17 can be delayed. Referring to fig. 1, a second glass plate 132 is further disposed on an outer side of the door 13, and the first glass plate 131 and the second glass plate 132 are spaced apart from each other on the door 13 to form the first air duct 15. Thus, the temperature rise of the second glass plate 132 can also meet the safety requirements.

In addition, in other embodiments, a high temperature resistant camera may be used as the camera 17, so that the maximum acceptable operating environment temperature of the camera 17 may be increased. The first glass plate 131 and the second glass plate 132 can be spaced apart from each other by an increased distance, so that the camera 17 and the cavity 11 can have a larger distance therebetween, and a larger air intake amount can be realized. The door 13 may be provided with a plurality of first glass plates 131, and the plurality of first glass plates 131 are disposed between the camera 17 and the chamber 11.

In some embodiments, the heat dissipation pipe 27 is a metal pipe. Thus, the radiating pipe 27 can have good structural strength and thermal conductivity.

Specifically, in some embodiments, the heat dissipation pipe 27 is an aluminum pipe. It can be understood that the aluminum pipe has the characteristics of light weight and corrosion resistance, does not make the door body 13 too heavy, and has a long service life. Of course, in other embodiments, the heat pipe 27 may be made of other metal materials (e.g., copper, aluminum alloy, stainless steel).

Referring to fig. 3 and 4, in some embodiments, the door 13 has an overall rectangular structure. The radiating pipe 27 includes a first section 271, a second section 272, and a third section 273. The second segment 272 connects the first segment 271 and the third segment 273, the first segment 271 and the third segment 273 extend in the longitudinal direction L of the door 13 at the edge of the door 13, and the second segment 272 extends in the width direction W of the door 13 at the edge of the door 13. Thus, the area of the heat pipe 27 cooled by the first duct 15 can be increased.

Specifically, referring to fig. 4, the first fan 23 has a first exhaust port 231, the first exhaust port 231 communicates with the inlet of the first segment 271, and the first fan 23 delivers the sucked air to the camera 17 along the first segment 271, the second segment 272 and the third segment 273 through the first exhaust port 231. It can be understood that when air is supplied to the camera 17 through the heat pipe 27, the heat pipe 27 itself is also heated by the heat conducted from the cavity 11 to the door 13, in this case, the air supplied along the heat pipe 27 is also heated in the heat pipe 27, so that the temperature of the air supplied to the camera 17 is raised, thereby affecting the cooling effect of the camera 17. By arranging the heat pipe 27 in a structure in which the first section 271, the second section 272, and the third section 273 are located at the edge of the door 13 and are sequentially connected, the contact area between the heat pipe 27 and the air can be increased, and the cooling rate of the heat pipe 27 can be increased under the condition that the flowing air is formed in the first air duct 15, thereby preventing or reducing the influence caused by the heat pipe 27 being heated.

In addition, in the embodiment of fig. 3 and 4, the first segment 271, the second segment 272, and the third segment 273 are all in a straight tube shape, and in other embodiments, any one or two or more of the first segment 271, the second segment 272, and the third segment 273 may be in a bent tube shape, which is not limited herein.

In addition, in other embodiments, the second segment 272 is disposed near a side of the door 13, so as to prevent the radiating pipe 27 from obstructing the view of the user looking into the cavity 11.

Referring to fig. 3 and 4, in some embodiments, the first fan 23 is disposed at a lower edge of the door 13, and the camera 17 is disposed at an upper portion of the door 13. In this way, the cool air and the hot air in the first air duct 15 can be conveniently separated, thereby improving the cooling efficiency.

Specifically, the camera 17 is arranged at the upper part of the door body 13, so that hot air can be conveniently and quickly discharged out of the first air duct 15; the first fan 23 is disposed at the edge of the lower portion of the door 13, so that the first fan 23 can suck cold air. It can be understood that the hot air will gradually rise to the top of the door 13 due to thermal expansion, so as to ensure that the hot air is not sucked by the first fan 23 again to affect the cooling effect.

In the embodiment shown in fig. 2 and 3, the top of the door 13 is opened with a first air outlet 133 communicated with the first air duct 15, so that the hot air at the upper part of the door 13 is discharged out of the first air duct 15 along the first air outlet 133. The lower portion of the door 13 is opened with a first air inlet 134 communicating with the first air duct 15, so that the cold air outside the door 13 is sucked into the first air duct 15 along the first air inlet 134. In the embodiment shown in fig. 4, the first fan 23 has a first air inlet 233, the first air inlet 233 is disposed near the first air inlet 134, and the first fan 23 can suck the cool air near the first air inlet 134 into the first fan 23 through the first air inlet 233.

In the illustrated embodiment, the number of the first fans 23 is one. In other embodiments, the heat dissipation pipe 27 may be connected to a plurality of first fans 23 (e.g., two or more) so as to increase the amount of cool air to be delivered. In one example, the first fan 23 is a centrifugal fan.

Referring to fig. 4, in some embodiments, an orthogonal projection of the first fan 23 on the lower portion of the door 13 is staggered from an orthogonal projection of the camera 17 on the lower portion of the door 13. Thus, the first fan 23 does not block the airflow flowing from bottom to top to the camera 17 in the door 13.

Specifically, referring to fig. 3 and 5, in the illustrated embodiment, air outside the door 13 may be introduced into the first air duct 15 along the first air inlet 134 and discharged out of the first air duct 15 along the first air outlet 133, so as to form a bottom-to-top airflow in the first air duct 15. Through staggering the setting with first fan 23 and camera 17 at the orthographic projection of the formation of the lower part of the door body 13 respectively, can avoid first fan 23 to block the air current of department under camera 17 for first fan 23 can cooperate the air current to cool off camera 17, promotes cooling rate.

Referring to fig. 3 and 4, in some embodiments, the household appliance 100 includes a camera support 19. The camera 17 is mounted in the first duct 15 by a camera support 19. The camera support 19 is provided with an accommodating space 191, the camera 17 is positioned in the accommodating space 191, and the heat dissipation pipe 27 is communicated with the accommodating space 191. In this way, the camera 17 can be cooled intensively by the air flow sent along the heat pipe 27.

In the illustrated embodiment, the camera holder 19 is opened with an air hole 192 communicating with the heat pipe 27, and the air hole 192 is disposed toward the camera 17. When the cooling air is supplied to the camera 17 through the heat pipe 27, the cooling air directly flows into the housing space 191 through the air supply hole 192 and spreads around the camera 17 to cool the camera 17. Referring to fig. 4, in the illustrated embodiment, the camera bracket 19 further defines a plurality of exhaust holes 193, and each of the exhaust holes 193 is connected to the receiving space 191 and the first air duct 15 and disposed in different orientations. In the case that the hot air is formed in the accommodating space 191, the hot air may be discharged into the first duct 15 through the plurality of exhaust holes 193 in different directions, thereby ensuring that the hot air not discharged remains in the accommodating space 191, and the hot air may be simultaneously discharged through the plurality of exhaust holes 193, ensuring that the air in the accommodating space 191 flows. It is understood that the number of the exhaust holes 193 may be one.

Referring to fig. 3 and 4, in some embodiments, the cooling device 21 includes a second fan 25. The second fan 25 is arranged along the edge of the lower portion of the door 13 in parallel with the first fan 23, and the second fan 25 is used for sucking air outside the door 13 to cool the heat dissipation pipe 27. Thus, the air in the heat pipe 27 is prevented from being heated and affecting the cooling quality.

The second fan 25 is disposed along the lower edge of the door 13 in parallel with the first fan 23, and may be disposed adjacent to the radiating pipe 27 to improve the cooling efficiency of the radiating pipe 27, and facilitate installation and control. Meanwhile, the cool air supplied from the second fan 25 to the heat dissipating pipe 27 is also in a bottom-up direction, so that the hot air around the heat dissipating pipe 27 is discharged at the first outlet 133.

Specifically, in the embodiment shown in fig. 3 and 4, the second fan 25 has a second exhaust 251 and a second intake 253. The second air outlet 251 is disposed toward the heat radiating pipe 27 (in the illustrated embodiment, the second air outlet 251 is disposed toward the second section 272, a portion of the first section 271 and a portion of the third section 273), and the second air inlet 253 is disposed near the first air inlet 134. The second fan 25 may draw cool air into the second fan 25 through the second air inlet 253. In the case that the first fan 23 delivers the cool air outside the door 13 to the camera 17 along the heat dissipation pipe 27, the second fan 25 may deliver the cool air outside the door 13 to the surface of the heat dissipation pipe 27 along the second air outlet 251. In the case that there is cold air flowing continuously on the surface of the radiating pipe 27, it can play a role of cooling the radiating pipe 27, thereby avoiding the problem of poor cooling effect caused by the air in the radiating pipe 27 being heated.

In addition, it is understood that in other embodiments, the home appliance 100 may be provided with a plurality of second fans 25, so that the delivery amount of the cool air may be increased. In one example, the second fan 25 is a centrifugal fan.

Referring to fig. 1, 5 and 6, in some embodiments, a control box 31 is fixed to the front of the cavity 11 and located above the door 13. The household appliance 100 comprises an air duct member 33 provided at the top of the cavity 11. The third fan 35 is arranged in the air duct piece 33, the second air duct 37 is arranged on the air duct piece 33, an inlet 371 of the second air duct 37 is communicated with the first air duct 15, and an outlet 373 of the second air duct 37 is communicated with a gap 374 between the top of the door body 13 and the control box 31. Thus, the air duct member 33 can accelerate the air in the first air duct 15 to flow from bottom to top, thereby improving the cooling effect.

Specifically, referring to FIG. 5, in the embodiment shown in FIG. 5, the second air duct 37 includes spaced upper 375 and lower 377 air ducts. The air duct member 33 includes a connection space 331 communicating the upper duct 375 and the lower duct 377. The third fan 35 is located in the connection space 331. The lower duct 377 communicates with the first duct 15, and the upper duct 375 communicates with a gap 374 between the top of the door 13 and the control box 31. The inlet 371 is disposed toward and adjacent to the first outlet 133. Under the condition that the door 13 closes the cavity 11, the inlet 371 of the second air duct 37 is communicated to the first air duct 15, and the third fan 35 continuously sucks the air at the inlet 371, so that the air in the first air duct 15 is discharged through the first air outlet 133 and sucked into the lower air duct 377. The hot air in the lower air duct 377 is continuously sucked by the third fan 35 and is discharged into the upper air duct 375, and is finally discharged out of the household appliance 100 through the gap 374 at the outlet 373 of the second air duct 37, so that a bottom-to-top accelerated airflow is finally formed in the first air duct 15.

In addition, in the illustrated embodiment, the air duct member 33 can effectively reduce the temperature inside the household appliance 100 and take away heat, so that the ambient temperature of other components of the household appliance 100 is at a suitable temperature, thereby improving the service life of the household appliance 100 and the stability and safety during operation.

In the illustrated embodiment, the control box 31 is provided with a touch panel 39. The user can control the operation of the household appliance 100, such as parameter setting, mode setting, power on and power off, etc., by operating the touch screen 39. It will be appreciated that in other embodiments, the control box 31 may be provided with buttons, knobs, etc. to achieve the same effect, and will not be expanded upon in detail.

Referring to fig. 7, in some embodiments, the household appliance 100 includes a wind deflector 41 corresponding to the outlet 373 of the second wind channel 37, and the wind deflector 41 is installed at the bottom of the control box 31. In this way, the hot air discharged along the outlet 373 is prevented from being sucked into the second air path 37 again.

Specifically, in the embodiment shown in fig. 7, the air guide plate 41 includes a first air guide 43 and a second air guide 45. The first air guide 43 and the second air guide 45 are disposed at an interval from each other at the outlet 373 to form an air outlet passage 47. The central axis C of the air outlet channel 47 is inclined upward along the horizontal direction to form an angle, so that the air outlet channel 47 tends to extend upward from the outlet 373 to the gap 374. In this case, the hot air in the outlet channel 47 will be discharged along the gap 374 in the direction away from the inlet 371, and will not be sucked into the second air duct 37 again, which will affect the speed of the air in the first air duct 15 when flowing upward.

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

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

Claims

1. A household appliance, characterized in that it comprises:

a cavity;

2. The household appliance according to claim 1, wherein the heat dissipation pipe is a metal pipe.

3. The household appliance according to claim 2, wherein the heat dissipation pipe is an aluminum pipe.

4. The household appliance according to claim 1, wherein the door body is of a rectangular structure as a whole, the heat dissipation pipe comprises a first section, a second section and a third section, the second section is connected with the first section and the third section, the first section and the third section extend along the length direction of the door body at the edge of the door body, and the second section extends along the width direction of the door body at the edge of the door body.

5. The household appliance according to claim 1, wherein the first fan is disposed at an edge of a lower portion of the door body, and the camera is disposed at an upper portion of the door body.

6. The household appliance according to claim 1, wherein an orthographic projection of the first fan on the lower portion of the door body is staggered with an orthographic projection of the camera on the lower portion of the door body.

7. The household appliance according to claim 1, wherein the household appliance comprises a camera bracket, the camera is mounted in the first air duct through the camera bracket, the camera bracket is provided with an accommodating space, the camera is located in the accommodating space, and the heat dissipation pipe is communicated with the accommodating space.

8. The household appliance according to claim 1, wherein the cooling device comprises a second fan, the second fan is arranged along the edge of the lower portion of the door body and in parallel with the first fan, and the second fan is used for sucking air outside the door body to cool the radiating pipe.

9. The household appliance according to claim 1, wherein a control box located above the door body is fixed to the front portion of the cavity, the household appliance comprises an air duct piece arranged at the top of the cavity, a third fan is arranged in the air duct piece, a second air duct is arranged on the air duct piece, an inlet of the second air duct is communicated with the first air duct, and an outlet of the second air duct is communicated with a gap between the top of the door body and the control box.

10. The household appliance of claim 9, wherein the household appliance comprises a wind deflector corresponding to the second wind duct outlet, and the wind deflector is mounted at the bottom of the control box.

11. The household appliance according to claim 9, wherein the second air duct comprises an upper air duct and a lower air duct which are spaced apart from each other, the air duct member comprises a connecting space for communicating the upper air duct with the lower air duct, the third fan is located in the connecting space, the lower air duct is communicated with the first air duct, and the upper air duct is communicated with a gap between the top of the door body and the control box.