CN111317374A

CN111317374A - Self-cleaning oven and cleaning method thereof

Info

Publication number: CN111317374A
Application number: CN202010309971.XA
Authority: CN
Inventors: 陈荣武; 刘敏; 陈勇军; 麦志文; 林章鹏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-06-23

Abstract

The invention relates to a self-cleaning oven and a cleaning method thereof, wherein the self-cleaning oven comprises: the food storage box comprises a box body, wherein a cavity for placing food is arranged in the box body; the steam release device is used for releasing high-temperature steam into the cavity and melting oil stains on the inner wall of the cavity; the multi-angle spray head is used for spraying cleaning liquid on the top surface, the bottom surface and the side surfaces of the cavity. Before the multi-angle spray head sprays cleaning liquid, the oil stain is firstly melted by high-temperature steam, so that stains can be easily cleaned when the cleaning liquid is sprayed. And adopt multi-angle shower nozzle can all clear up the top surface, bottom surface and the side of cavity, improve clean effect. The operation convenience is improved without wiping by a user in the whole process.

Description

Self-cleaning oven and cleaning method thereof

Technical Field

The invention relates to the technical field of household appliances, in particular to a self-cleaning oven and a cleaning method thereof.

Background

When the oven is used, a high-temperature environment can be manufactured in the inner container cavity, and food can be quickly cooked by using high temperature. Generally, food baked in an oven has large grease, and under a high-temperature environment, the grease can float and contaminate the top, side walls and bottom wall of an inner container of the oven. And the greasy dirt attached to the inner wall is difficult to clean, so that the cleaning difficulty is high on one hand and the cleaning effect is poor on the other hand when a user manually wipes the inner wall. In the past, bacteria are easy to breed in the oven, and the food sanitation problem is caused.

Disclosure of Invention

Accordingly, there is a need for a self-cleaning oven and a cleaning method thereof to improve the convenience of cleaning and the cleaning effect.

A self-cleaning oven comprising:

the food storage box comprises a box body, wherein a cavity for placing food is arranged in the box body;

the steam release device is used for releasing high-temperature steam into the cavity and melting oil stains on the inner wall of the cavity;

the multi-angle spray head is used for spraying cleaning liquid on the top surface, the bottom surface and the side surfaces of the cavity.

According to the scheme, when the oven needs to be cleaned, the steam release device operates to release high-temperature steam into the cavity to melt oil stains on the inner wall of the cavity, then the multi-angle spray head operates to spray cleaning liquid on the top surface, the bottom surface and the side surfaces of the cavity, and stains on the inner wall of the cavity are cleaned. Before the multi-angle spray head sprays cleaning liquid, the oil stain is firstly melted by high-temperature steam, so that stains can be easily cleaned when the cleaning liquid is sprayed. And adopt multi-angle shower nozzle can all clear up the top surface, bottom surface and the side of cavity, improve clean effect. The whole process does not need wiping by a user, and the operation convenience is improved.

In one embodiment, the self-cleaning oven further comprises a rotation driving assembly, a water pipe is arranged on the multi-angle spray head and used for conveying cleaning liquid to the multi-angle spray head, an engaging member is arranged outside the water pipe, and the rotation driving assembly is matched with the engaging member and drives the multi-angle spray head to rotate by taking the water pipe as a rotating shaft.

In one embodiment, the rotary driving assembly comprises a rotary driving member and a transmission member, the transmission member is connected with a rotating shaft of the rotary driving member, the water conveying pipe penetrates through the top wall of the box body, the multi-angle spray head is located in the cavity, the rotary driving member and the transmission member are located above the top wall, and the transmission member is matched with the meshing member.

In one embodiment, the part of the water pipe close to the multi-angle spray head is a rotating section, the rotating section is communicated with other pipe sections of the water pipe, the rotating section and the other pipe sections of the water pipe can rotate, and the engaging piece is arranged outside the rotating section.

In one embodiment, the self-cleaning oven further comprises a pressurized water pump, the bottom wall of the oven body is provided with a water purifying box, the water purifying box can be drawn out of the oven body, the water delivery pipe is communicated with the water purifying box, and the pressurized water pump is communicated with the water delivery pipe and is used for pumping water in the water purifying box to the multi-angle spray head.

In one embodiment, the bottom wall of the box body is provided with a water purification drawer groove, an opening of the water purification drawer groove is positioned on the front side surface of the box body, the water purification box is positioned in the water purification drawer groove, and the water purification box can be drawn out of the box body from the opening of the water purification drawer groove.

In one embodiment, a part of the water pipe close to the water purifying box is an introduction section, the introduction section is a flexible hose, an accommodating space for accommodating the flexible hose is arranged on the box body at a position corresponding to the flexible hose, and the flexible hose can move along with the movement of the water purifying box, or the introduction section is a telescopic pipe, and the telescopic direction of the telescopic pipe is the moving direction of the water purifying box in the water purifying drawer groove.

In one embodiment, the bottom surface of the cavity is provided with a diversion trench and a drain hole, the bottom wall of the box body is provided with a detachable sewage box, and the drain hole is communicated between the diversion trench and the sewage box.

In one embodiment, the bottom surface of the cavity is provided with an annular groove, a converging groove and a drain hole, the bottom wall of the box body is provided with a detachable sewage box, the sewage box and the purified water box are arranged side by side at intervals, the annular groove is arranged in the middle of the bottom surface, the drain hole is arranged along the longitudinal direction, the bottom end of the drain hole is communicated with the purified water box, and the converging groove is communicated between the annular groove and the drain hole.

In one embodiment, the bottom wall of the box body is provided with a sewage drawer groove, the opening of the sewage drawer groove is positioned on the front side surface of the box body, the sewage box is positioned in the sewage drawer groove, and the sewage box can be drawn out of the box body from the opening of the sewage drawer groove.

In one embodiment, the annular grooves are multiple, the radius of each annular groove is different, the annular grooves are concentrically arranged at intervals, and the confluence groove is communicated with each annular groove.

A cleaning method for a self-cleaning oven is provided, and comprises the following steps:

the steam release device is started to release high-temperature steam into the cavity of the box body;

and after the oil stain on the inner wall of the cavity is melted by the high-temperature steam, intermittently spraying water by the multi-angle spray head.

According to the scheme, the cleaning method for the self-cleaning oven is provided, and in the cleaning process, oil stains are firstly melted by high-temperature steam, so that stains can be easily cleaned when cleaning liquid is sprayed. And adopt the multi-angle shower nozzle can all clear up the top surface, the bottom surface and the side of cavity to effectively improve clean effect. In addition, the inner wall of the cavity does not need to be wiped by a user in the whole process, and the operation convenience is improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a self-cleaning oven according to the present embodiment;

FIG. 2 is a front view of the self-cleaning toaster of the present embodiment in an open state;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a connection relationship diagram of the multi-angle spray head, the water pipe, the water purifying box and the sewage box in the self-cleaning oven shown in fig. 1 and 2.

Description of reference numerals:

10. self-cleaning the oven; 11. a box body; 111. a cavity; 112. a purified water drawer tank; 113. a sewage drawer tank; 114. an annular groove; 115. a confluence groove; 116. a drain hole; 12. a box door; 13. a multi-angle shower nozzle; 14. a rotary drive assembly; 141. a rotary drive member; 142. a transmission member; 15. a water delivery pipe; 151. an engaging member; 152. a rotating section; 16. a pressurized water pump; 17. a water purifying box; 18. a sewage box.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and 2, in one embodiment, there is provided a self-cleaning oven 10 comprising:

the food box comprises a box body 11, wherein a cavity 111 for placing food is arranged in the box body 11;

the steam release device is used for releasing high-temperature steam into the cavity 111 and melting oil stains on the inner wall of the cavity 111;

and a multi-angle spray head 13 for spraying a cleaning liquid on the top, bottom and side surfaces of the chamber 111.

According to the self-cleaning oven 10 provided by the scheme, when cleaning is needed, the steam release device operates to release high-temperature steam into the cavity 111, oil stains on the inner wall of the cavity 111 are melted, then the multi-angle spray head 13 operates to spray cleaning liquid on the top surface, the bottom surface and the side surfaces of the cavity 111, and stains on the inner wall of the cavity 111 are cleaned. Before the multi-angle spray head 13 sprays the cleaning liquid, the oil stain is firstly melted by high-temperature steam, so that the stain can be easily cleaned when the cleaning liquid is sprayed. And for general spray arm, adopt multi-angle shower nozzle 13 can all clear up the top surface, bottom surface and the side of cavity 111, improve clean effect. In the whole process, a user does not need to wipe the inner wall of the cavity 111, so that the operation convenience is improved.

In particular, the steam release device may be combined with a water containing device to form a device capable of producing steam by means of a heating element that provides a high temperature environment when cooking in an oven. Or other devices capable of forming vapor may be directly used without particular limitation.

As shown in fig. 3, the multi-angle spray head 13 includes a plurality of nozzles, each of which has a different spray angle, and the plurality of nozzles are spatially distributed in a spherical shape, so that the multi-angle spray head 13 can spray the cleaning liquid onto the top, bottom, and side surfaces of the chamber 111.

Specifically, as shown in fig. 3, in one embodiment, the multi-angle nozzle 13 includes a nozzle portion having a spherical shape, and the nozzle portion is provided with a plurality of nozzles spaced along a spherical surface of the nozzle portion.

Further, in one embodiment, as shown in fig. 1 to 4, a water pipe 15 is disposed on the multi-angle spray head 13 for conveying the cleaning liquid into the multi-angle spray head 13. Specifically, when the multi-angle spray head 13 includes the spray head portion, the water pipe 15 is communicated with the spray head portion for conveying the cleaning liquid into the multi-angle spray head 13. The cleaning liquid can be clear water or liquid mixed with detergent.

As shown in FIG. 2, the self-cleaning oven 10 also includes a rotary drive assembly 14. As shown in fig. 1, an engaging member 151 is provided outside the water pipe 15, and the rotation driving assembly 14 is engaged with the engaging member 151 to drive the multi-angle nozzle 13 to rotate around the water pipe 15 as a rotation axis.

Therefore, in the using process, the multi-angle spray head 13 not only sprays the cleaning liquid on the inner wall of the cavity 111 by virtue of the shape characteristics of the multi-angle spray head, but also can rotate by virtue of the rotary driving component 14, so that the sprayed cleaning liquid has higher power, the coverage area and uniformity of spraying are further improved, and the cleaning effect is improved.

Specifically, the multi-angle spray head 13 may be disposed on a top wall, a bottom wall, or a side wall of the case 11.

Further, as shown in fig. 1-4, in one embodiment, the rotary drive assembly 14 includes a rotary drive 141 and a transmission 142. The transmission member 142 is connected to the rotating shaft of the rotating driving member 141, and the rotating driving member 141 drives the transmission member 142 to rotate when operating. In particular, the rotary driving element 141 may be a motor, and the transmission element 142 may be a gear. The engagement member 151 may be a gear. The water pipe 15 penetrates through the top wall of the box body 11, and the multi-angle spray head 13 is positioned in the cavity 111. In other words, the multi-angle spray head 13 is connected with the top wall of the box body 11 through the water delivery pipe 15. The water pipe 15 and the top wall may be connected by a bearing, so that the water pipe 15 can rotate. The rotary driving member 141 and the transmission member 142 are located above the top wall, and the transmission member 142 is engaged with the engaging member 151. When the rotary driving member 141 is operated, the transmission member 142 rotates to drive the engaging member 151 engaged therewith to rotate, so that the multi-angle nozzle 13 rotates with the water pipe 15 as a rotating shaft.

Further specifically, as shown in fig. 3, in one embodiment, a portion of the water pipe 15 near the multi-angle spraying head 13 is a rotating section 152, the rotating section 152 is communicated with other pipe sections of the water pipe 15, the rotating section 152 is rotatable with the other pipe sections of the water pipe 15, and the engaging member 151 is disposed outside the rotating section 152. So that when the rotational driving assembly 14 is operated, the engaging member 151 rotates with the rotation section 152, and the rotation section 152 rotates with the multiple angle spray head 13. At this time, the multi-angle spray head 13 rotates about the axis of the rotation section 152.

When the rotary drive assembly 14 comprises a rotary drive element 141 and a transmission element 142, the transmission element 142 cooperates with an engagement element 151 arranged outside the rotary segment 152. The rotary section 152 penetrates the top wall of the case 11.

Optionally, the water pipe 15 may also be a hose, and the flexibility of the hose is utilized to meet the yielding requirement in the rotating process.

Further, as shown in fig. 1 to 4, in one embodiment, the self-cleaning oven 10 further includes a pressurized water pump 16, a water purifying box 17 is disposed on the bottom wall of the box body 11, the water purifying box 17 can be drawn out of the box body 11, the water pipe 15 is communicated with the water purifying box 17, and the pressurized water pump 16 is communicated with the water pipe 15 for pumping the water in the water purifying box 17 to the multi-angle nozzle 13.

When cleaning the inner wall of the cavity 111, the pressurized water pump 16 pumps the water in the water purifying box 17 to the multi-angle nozzle 13. And the user only needs to draw out the water purifying box 17 and add water into the water purifying box, so that the operation is simple and convenient. Specifically, the user may add detergent to the clean water cartridge 17 to enhance the cleaning effect.

Further specifically, in one embodiment, as shown in fig. 1 and 2, the bottom wall of the tank 11 is provided with a clean water drawer tank 112, an opening of the clean water drawer tank 112 is located at a front side surface of the tank 11, the clean water cartridge 17 is located in the clean water drawer tank 112, and the clean water cartridge 17 can be drawn out of the tank 11 through the opening of the clean water drawer tank 112, thereby improving convenience of operation.

In order to ensure that the purified water cartridge 17 is inserted into the purified water drawer slot 112, the water pipe 15 can be communicated with the purified water cartridge 17 by drawing out or inserting the purified water cartridge 17 from the front side into the tank 11, so that the subsequent cleaning process can be smoothly performed.

In one embodiment, the part of the water pipe 15 close to the water purifying cartridge 17 is an introduction section. The leading-in section is a flexible hose, and a containing space for containing the flexible hose is arranged at a position on the box body 11 corresponding to the flexible hose, and the flexible hose can move along with the movement of the water purifying box 17. So that the flexible hose follows the movement as the purified water cartridge 17 moves back and forth in the purified water drawer tub 112 to be always communicated with the purified water cartridge 17. For example, the introduction section extends through a side wall of the water purification cartridge 17 remote from the front side surface and communicates with the water purification cartridge 17.

Alternatively, in one embodiment, the introduction section is a telescopic tube, and the telescopic direction of the telescopic tube is the moving direction of the purified water box 17 in the purified water drawer groove 112. So that the introduction section is extended and contracted with the movement of the purified water cartridge 17, so that the introduction section can be always communicated with the purified water cartridge 17, and the water in the purified water cartridge 17 can be surely pumped out from the water pipe 15.

Further, in one embodiment, as shown in fig. 1 and 4, a diversion trench and a drainage hole 116 are formed on the bottom surface of the cavity 111, a detachable sewage box 18 is formed on the bottom wall of the tank body 11, and the drainage hole 116 is communicated between the diversion trench and the sewage box 18.

When the steam release device and the multi-angle nozzle 13 operate in sequence, and the stain on the inner wall of the cavity 111 is washed and fallen, the stain is gathered in the diversion trench along with the water flow, and then flows into the sewage box 18 from the drain hole 116. The user simply pours the sewage in the sewage box 18.

During the cleaning process of the self-cleaning oven 10, the user needs to perform an operation of putting clean water or clean water mixed with detergent into the clean water box 17 and then pouring the sewage in the sewage box 18. The operation is convenient, the user time is saved, and the user experience is improved.

Specifically, in one embodiment, as shown in fig. 1, 2 and 4, the guide grooves include an annular groove 114 and a confluence groove 115, the annular groove 114 is disposed at the middle of the bottom surface, and the drain holes 116 are disposed in a longitudinal direction. The sewage box 18 and the purified water box 17 are arranged side by side at intervals, the bottom end of the drain hole 116 is communicated with the purified water box 17, and the confluence groove 115 is communicated between the annular groove 114 and the drain hole 116.

After the cleaning liquid sprayed by the multi-angle spray head 13 cleans up the stains, the stains are gathered to the bottom surface of the cavity 111 along the water flow, and then flow into the sewage box 18 along the annular groove 114, the converging groove 115 and the drainage hole 116 in sequence. Based on the sewage box 18 and the purified water box 17 arranged side by side at intervals, the sewage box 18 is not located in the middle of the bottom wall of the box body 11, and therefore the converging groove 115 is arranged to drain away the dirt gathered in the annular groove 114.

Further, in one embodiment, the annular grooves 114 are multiple, the radius of each annular groove 114 is different, the annular grooves 114 are concentrically arranged at intervals, and the confluence groove 115 is communicated with each annular groove 114. Improve the collection effect of the stains, thereby improving the cleaning effect.

Further, as shown in fig. 1, 2 and 4, in one embodiment, a bottom wall of the box body 11 is provided with a sewage drawer groove 113, an opening of the sewage drawer groove 113 is located at a front side surface of the box body 11, the sewage box 18 is located in the sewage drawer groove 113, and the sewage box 18 can be drawn out of the box body 11 through the opening of the sewage drawer groove 113. The user can operate the fresh water cartridge 17 and the foul water cartridge 18 at the front of the housing 11.

Further, as shown in fig. 2, in an embodiment, the oven further includes a door 12, a cavity opening is disposed on a front side of the oven body 11, and the door 12 closes or opens the cavity opening by opening and closing. And the door 12 may shield the opening of the clean water drawer tank 112 and the opening of the dirty water drawer tank 113 on the front side. When the operation of the sewage box 18 or the purified water box 17 is required, the box door 12 is opened.

Alternatively, a relief port is provided at a position of the box door 12 corresponding to the opening of the sewage drawer tank 113 and the opening of the purified water drawer tank 112. The operation of the fresh water cartridge 17 or the foul water cartridge 18 can be performed without opening the tank door 12.

Further, in another embodiment, there is provided a method of cleaning a self-cleaning oven 10, the self-cleaning oven 10 being the self-cleaning oven 10 described above, the method of cleaning a self-cleaning oven 10 comprising the steps of:

the steam releasing device is started to release high-temperature steam into the cavity 111 of the box body 11;

after the oil stain on the inner wall of the cavity 111 is melted by the high-temperature steam, the multi-angle spray head 13 intermittently sprays water.

According to the scheme, the method for cleaning the self-cleaning oven 10 is provided, and in the cleaning process, oil stains are firstly melted by high-temperature steam, so that stains can be easily cleaned when cleaning liquid is sprayed. And adopt multi-angle shower nozzle 13 can all clear up the top surface, bottom surface and the side of cavity 111 to effectively improve clean effect. In addition, the user does not need to wipe the inner wall of the cavity 111 in the whole process, and the operation convenience is improved.

Further, after the multi-angle spraying nozzle 13 sprays water, the self-cleaning oven 10 enters a drying stage to dry the water in the cavity 111.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A self-cleaning oven, comprising:

2. The oven of claim 1, further comprising a rotation driving assembly, wherein the multi-angle nozzle is provided with a water pipe for conveying the cleaning liquid to the multi-angle nozzle, the water pipe is externally provided with an engaging member, and the rotation driving assembly is matched with the engaging member to drive the multi-angle nozzle to rotate by using the water pipe as a rotation axis.

3. The oven of claim 2, wherein the rotary driving assembly comprises a rotary driving member and a transmission member, the transmission member is connected to a rotating shaft of the rotary driving member, the water pipe penetrates through a top wall of the oven body, the multi-angle spray head is located in the cavity, the rotary driving member and the transmission member are located above the top wall, and the transmission member is engaged with the engaging member.

4. The oven of claim 2, wherein the portion of the water duct close to the multi-angle nozzle is a rotating section, the rotating section is communicated with other pipe sections of the water duct, the rotating section is rotatable with the other pipe sections of the water duct, and the engaging member is disposed outside the rotating section.

5. The oven of claim 2, further comprising a pressurized water pump, wherein a water purifying box is disposed on the bottom wall of the oven body, the water purifying box can be drawn out of the oven body, the water pipe is communicated with the water purifying box, and the pressurized water pump is communicated with the water pipe and is used for pumping water in the water purifying box to the multi-angle spray head.

6. The self-cleaning toaster of claim 5, wherein said bottom wall of said case is provided with a clean water drawer slot, said clean water drawer slot opening being located at a front side of said case, said clean water cartridge being located in said clean water drawer slot, said clean water cartridge being capable of being drawn out of said case through said clean water drawer slot opening.

7. The oven of claim 6, wherein the water pipe is provided with a guiding section, the guiding section is a flexible hose, a receiving space for receiving the flexible hose is provided at a position corresponding to the flexible hose on the box body, and the flexible hose can move along with the movement of the water purifying box, or the guiding section is a telescopic pipe, and the telescopic direction of the telescopic pipe is the moving direction of the water purifying box in the water purifying drawer groove.

8. The self-cleaning oven of any one of claims 1 to 7, wherein the bottom surface of the cavity is provided with a diversion trench and a drain hole, the bottom wall of the oven body is provided with a detachable sewage box, and the drain hole is communicated between the diversion trench and the sewage box.

9. The self-cleaning oven as claimed in any one of claims 5 to 7, wherein the bottom surface of the cavity is provided with an annular groove, a flow collecting groove and a drain hole, the bottom wall of the oven body is provided with a detachable sewage box, the sewage box and the water purifying box are arranged side by side at a distance, the annular groove is arranged in the middle of the bottom surface, the drain hole is arranged along the longitudinal direction, the bottom end of the drain hole is communicated with the water purifying box, and the flow collecting groove is communicated between the annular groove and the drain hole.

10. The self-cleaning oven of claim 9, wherein the bottom wall of the box is provided with a dirty water drawer slot, an opening of the dirty water drawer slot being located at a front side of the box, the dirty water box being located in the dirty water drawer slot, the dirty water box being extractable out of the box from the opening of the dirty water drawer slot.

11. A self-cleaning oven as claimed in claim 9 wherein said annular grooves are a plurality of, each having a different radius, a plurality of said annular grooves being concentrically spaced apart, said manifold groove communicating with each of said annular grooves.

12. A self-cleaning oven washing method, characterized in that the self-cleaning oven is a self-cleaning oven as claimed in any one of claims 1 to 11, the self-cleaning oven washing method comprising the steps of: