CN218683725U

CN218683725U - Steam oven

Info

Publication number: CN218683725U
Application number: CN202222294306.5U
Authority: CN
Inventors: 徐孝辉; 赵良; 崔世强; 于祥; 汪程浩
Original assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Current assignee: Hisense Shandong Kitchen and Bathroom Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-03-24
Anticipated expiration: 2032-08-29

Abstract

Embodiments of the present disclosure provide a steam oven including: the device comprises an inner container, a condensing part, a condensing recovery pipe fitting and a heating structure. The inner container is provided with a steam outlet. The condensation piece is provided with a condensation cavity, the bottom of the condensation piece is provided with a first through hole communicated with the condensation cavity, the condensation piece is provided with a steam inlet communicated with the steam outlet of the inner container, and the position of the first through hole is lower than that of the steam inlet. The one end of pipe fitting is retrieved in the condensation communicates through first through-hole and condensation chamber, and the other end and inner bag intercommunication, and the comdenstion water in the condensation chamber can retrieve the bottom that the pipe fitting flows to the inner bag through the condensation. The heating structure is fixedly connected with the inner container and is configured to heat the bottom of the inner container. The condensed water in the inner container is changed into steam, and the steam in the inner container can be still used for steaming and baking the food in the inner container. Therefore, the steam oven can recycle a part of steam, and the condition that water needs to be added frequently is avoided.

Description

Steam oven

Technical Field

The present disclosure relates to the field of household appliances, and more particularly, to a steam oven.

Background

The steam oven utilizes water to generate steam in an inner cavity of the steam oven, and further utilizes high-temperature steam to realize the baking function. Because the steam oven can continuously generate steam in the use process, in order to balance the internal and external pressure, the steam oven is generally provided with an opening to discharge the redundant steam. Because the steam precooling that the inner chamber of steam oven discharged can form the comdenstion water, directly discharge can cause the waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a steam oven has solved the problem that current steam oven direct discharge steam caused the waste.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

there is provided a steam oven comprising: the device comprises an inner container, a condensing part, a condensing recovery pipe fitting and a heating structure. The inner container is provided with a steam outlet. The condensation piece is provided with a condensation cavity, the bottom of the condensation piece is provided with a first through hole communicated with the condensation cavity, the condensation piece is provided with a steam inlet communicated with the steam outlet of the inner container, and the position of the first through hole is lower than that of the steam inlet. The one end of pipe fitting is retrieved in the condensation communicates with the condensation chamber through first through-hole, and the other end communicates with the inner bag, and the comdenstion water in the condensation chamber can retrieve the bottom that the pipe fitting flows to the inner bag through the condensation. The heating structure is fixedly connected with the inner container and is configured to heat the bottom of the inner container.

The steam oven is used for steaming and roasting food by using generated steam. When placing food in the inside of inner bag (hold the chamber promptly) and evaporate the roast, steam in the inner bag can flow to the condensing part with the inner bag intercommunication, and steam is cooled into the comdenstion water in the condensing chamber of condensing part, and the comdenstion water is retrieved the bottom that the pipe fitting flows to the inner bag through the condensation. The condensed water entering the bottom of the inner container is heated by the heating structure to be changed into steam, and the steam in the inner container can still be used for steaming and baking food in the inner container. Therefore, the steam oven can recycle a part of steam, and the condition that water needs to be added frequently is avoided.

Optionally, the condensation member comprises a condensation bottom shell and a condensation cover; the first through-hole of condensation drain pan is seted up on the condensation drain pan. The condensation cover is buckled on the condensation bottom shell to form a condensation cavity. Wherein, the condensation is retrieved the one end of pipe fitting and is passed through first through-hole and condensation drain pan intercommunication.

Optionally, the condensate recovery pipe fitting comprises a first joint, a second joint and a delivery pipe. The first joint penetrates through the first through hole, and part of the first joint extends out of the condensing part. The second joint is connected with the part of the first joint, which is positioned outside the condensing part, so that the second joint and the first joint are fixed on the condensing bottom shell. The conveying pipe is connected with the second joint and is communicated with the condensation bottom shell through the second joint and the first joint; or, the first joint is connected with the condensation bottom shell and communicated with the condensation bottom shell through the first joint.

Optionally, the first joint comprises a first tube portion and a first stop portion. First pipe portion runs through first through-hole, and includes first protrusion and the first part of stretching into, and first protrusion stretches out outside the condensation piece and with second articulate, the first inside that stretches into the part and stretch into the condensation drain pan. First barrier part sets up in the first week that stretches into the part of first pipe portion to the joint is in the inside of condensation drain pan.

Optionally, the second joint comprises a second pipe portion and a bent pipe portion, the second pipe portion being connected with the first joint. The bent pipe part is communicated with the second pipe part and is communicated with one end of the conveying pipe; wherein the included angle between the bending pipe part and the second pipe part is 45-135 degrees.

Optionally, the outer wall of the first joint is provided with external threads, the inner wall of the second joint is provided with internal threads, and the outer wall of the first joint and the inner wall of the second joint are in threaded connection. The cross section of the inner wall of the first joint is polygonal; and/or the cross-sectional shape of the outer wall of the second joint is polygonal.

Optionally, the condensation recycling pipe further comprises a one-way water pumping structure, the one-way water pumping structure is arranged on the conveying pipe and is configured to convey water in the condensation cavity into the inner container and prohibit steam in the inner container from flowing into the condensation cavity.

Optionally, the inner container is provided with a second through hole at a position close to the bottom thereof. The condensate recovery pipe further comprises a third joint and a fastener. The third joint penetrates through the second through hole, and part of the third joint extends to the outer side of the inner container. The fastener is connected with the part, located on the outer side of the inner container, of the third joint, so that the third joint is fixed in the second through hole of the inner container.

Optionally, the third joint includes a third pipe part and a fourth pipe part, the third pipe part penetrates through the second through hole and includes a second extending part and a second extending part, the second extending part extends to the outer side of the liner, and the second extending part extends to the inner part of the liner; the fastener is connected to the second extension. The fourth pipe part is communicated with the second extending part and is communicated with the other end of the conveying pipe; the outer diameter of the third pipe portion is equal to or larger than the outer diameter of the fourth pipe portion. The second stop part is arranged on the second extending part in the circumferential direction and is clamped in the inner container.

Optionally, the outer wall of the third pipe portion is formed by connecting at least one arc-shaped surface and at least one plane along the circumferential direction of the third pipe portion; the shape of the second through hole is adapted to the shape of the outer wall of the third pipe portion. The arc-shaped surface is provided with external threads, the inner wall of the fastener is provided with internal threads, and the inner wall of the fastener is in threaded connection with the arc-shaped surface of the third pipe part.

Drawings

In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art according to the drawings. Furthermore, the drawings in the following description may be regarded as schematic diagrams, and do not limit the actual size of products, the actual flow of methods, the actual timing of signals, and the like, involved in the embodiments of the present disclosure.

FIG. 1 is a block diagram of a steam oven according to some embodiments;

FIG. 2 is a block diagram of a space between a condensing element and a liner according to some embodiments;

FIG. 3 is a block diagram between a heating structure and a liner according to some embodiments;

FIG. 4 is a block diagram of a condensing element according to some embodiments;

FIG. 5 is a block diagram of a condensation sump, a first joint, and a second joint according to some embodiments;

FIG. 6 is a cross-sectional view of a condensation sump, a first joint, and a second joint, according to some embodiments;

FIG. 7 is a block diagram of a third joint, fastener, and liner according to some embodiments;

FIG. 8 is a cross-sectional view of a third joint, fastener, and bladder according to some embodiments;

FIG. 9 is a block diagram of a third joint according to some embodiments;

figure 10 is a block diagram of a liner at a second through-hole according to some embodiments.

Detailed Description

Technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided by the present disclosure belong to the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the description and the claims, the word "comprise" and its other forms, such as "comprises" and "comprising", will be interpreted as open, inclusive meaning that the word "comprise" and "comprises" will be interpreted as meaning "including, but not limited to", in the singular. In the description of the specification, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood 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 one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless otherwise specified.

"at least one of A, B and C" has the same meaning as "at least one of A, B or C" and includes the following combinations of A, B and C: a alone, B alone, C alone, a combination of A and B, A and C in combination, B and C in combination, and A, B and C in combination.

"A and/or B" includes the following three combinations: a alone, B alone, and a combination of A and B.

The use of "adapted to" or "configured to" herein is meant to be an open and inclusive language that does not exclude devices adapted to or configured to perform additional tasks or steps.

As used herein, "about," "approximately" or "approximately" includes the stated value as well as average values within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with measuring the particular quantity (i.e., the limitations of the measurement system).

As used herein, "parallel," "perpendicular," and "equal" include the stated case and cases that approximate the stated case to within an acceptable range of deviation as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, where an acceptable deviation from approximately parallel may be, for example, within 5 °; "perpendicular" includes absolute perpendicular and approximately perpendicular, where an acceptable deviation from approximately perpendicular may also be, for example, within 5 °. "equal" includes absolute and approximate equality, where the difference between the two, which may be equal within an acceptable deviation of approximately equal, is less than or equal to 5% of either.

Example embodiments are described herein with reference to cross-sectional and/or plan views as idealized example figures. In the drawings, the thickness of layers and regions are exaggerated for clarity. Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

Embodiments of the present disclosure provide a steam oven, the principle of which is to steam food using steam generated by water evaporation. An electric appliance for steaming and baking food using the above principle may be used as the steam oven in the present embodiment. In order to recycle the condensed water formed after the steam is condensed, the steam oven provided by the embodiment is provided with a relevant device for recycling the condensed water.

Referring to fig. 1, the steam oven may include an inner container 1, a condensing part 2, a condensing recovery pipe, and a heating structure 4; and can also comprise a box body, an oven door and the like.

Wherein, one side of the inner container 1 is provided with an inlet, and an accommodating cavity is formed inside for placing food. One side of the box body is provided with an opening; the inner container 1 can be fixedly arranged in the box body, and the inlet of the inner container 1 faces the same side with the opening of the box body. The oven door is used for opening the inlet of the inner container 1 or sealing the inlet of the inner container 1. The box body and the oven door can form the appearance of the steam oven.

In addition, referring to fig. 2, the inner container 1 is provided with a steam inlet 12 so that the steam in the inner container 1 can flow out. For example, the liner 1 includes a top plate and a bottom plate opposite to each other, and a side plate connecting the top plate and the bottom plate. The steam inlet 12 is positioned on the top plate of the inner container 1, so that the steam can be conveniently overflowed.

With reference to fig. 2, the condensing element 2 is provided with a steam outlet 23 communicated with the steam inlet 12 of the inner container 1, so that the steam in the inner container 1 can enter the condensing element 2 and be condensed into condensed water. Exemplarily, the condensation member 2 may be disposed above the inner container 1, that is, the condensation member 2 is disposed above a top plate of the inner container 1. Furthermore, the steam outlet 23 and the steam inlet 12 may be vertically aligned, which facilitates the condensing element 2 to collect as much steam as possible.

In some examples, an air inlet pipe is arranged between the condensation member 2 and the inner container 1, and the air inlet pipe is used for communicating the steam outlet 23 of the inner container 1 with the steam inlet 12 of the condensation member 2. It will be appreciated that the number of steam outlets 23, steam inlets 12 and air inlet pipes are equal and may communicate in a one-to-one correspondence. Illustratively, the top plate of the liner 1 has an upward protrusion (which may be referred to as a top protrusion) which is the highest point of the liner 1, and the excess steam in the liner 1 will collect at this point. The steam outlet 23 of the inner container 1 is provided at a protruding position of the top plate of the inner container 1 so as to discharge the steam.

The condensation member 2 has a condensation chamber. The steam may condense into condensed water in the condensation chamber. The bottom of the condensing part 2 is provided with a first through hole 24 communicated with the condensing cavity, so that condensed water can flow out of the condensing cavity. The first through-holes 24 are positioned lower than the steam outlet 23, so that it is possible to prevent condensed water from flowing back into the inner tub 1 through the steam outlet 23, resulting in the condensed water being sprayed onto the food from above. Illustratively, the condensation member 2 may be disposed between the cabinet and the inner container 1. Also exemplarily, the condensation member 2 may be partially exposed to the tank.

With continued reference to fig. 2, one end of the condensation recycling pipe is communicated with the condensation cavity through the first through hole 24, and the other end is communicated with the liner 1 (i.e. communicated with the accommodating cavity of the liner 1). The condensed water in the condensation cavity can flow to the bottom of the inner container 1 through the condensation recovery pipe fitting; that is, the condensed water is delivered to the bottom of the inner bag 1. Illustratively, the inner container 1 may have a plurality of food placing positions with different heights, for example, the side wall of the inner container 1 is provided with a plurality of clamping grooves at different heights, and the clamping grooves can be used for placing a grill or a tray, etc. The connecting position of the condensation recovery pipe fitting and the inner container 1 can be lower than the lowest food placing position in the inner container 1 so as to avoid the condensate water from being sprayed on the food. For example, the condensation recovery pipe may be disposed between the cabinet and the inner container 1.

Referring to fig. 3, the heating structure 4 is fixedly connected to the inner container 1 and configured to heat the bottom of the inner container 1, so that the condensed water in the inner container 1 is converted into steam. Exemplarily, the heating structure 4 may be disposed in the inner container 1, for example, at least a portion (part or all) of the heating structure 4 may be located below a lowest food placement position in the inner container 1, near the bottom of the inner container 1, so that the bottom of the inner container 1 can be heated. For example, the heating structure 4 comprises one or more heating rods disposed at a position near the bottom of the inner container 1. As another example, the heating structure 4 may be disposed outside the inner container 1, for example, between the bottom of the inner container 1 and the box body.

The steam oven is used for steaming and roasting food by using the generated steam. When placing food in the inside of inner bag 1 (hold the chamber promptly) and evaporate the roast, steam in the inner bag 1 can flow to the condensing part 2 with inner bag 1 intercommunication, and steam is cooled into the comdenstion water in the condensation chamber of condensing part 2, and the comdenstion water is retrieved the bottom that the pipe fitting flows to inner bag 1 through the condensation. The condensed water entering the bottom of the inner container 1 is heated by the heating structure 4 to be changed into steam, and the steam in the inner container 1 can still be used for steaming and baking the food in the inner container 1. Therefore, the steam oven can recycle a part of steam, and the condition that water needs to be added frequently is avoided.

Illustratively, the material of the condensation member 2 is a material having certain heat dissipation performance or good heat dissipation performance. The condensing material can be a metal material, for example, at least one of simple metal substances such as copper, aluminum, iron and the like; further examples are alloys containing any of the above-mentioned simple metals; also, for example, stainless steel or carbon steel.

Exemplarily, referring to fig. 4, the condensation member 2 includes a condensation bottom case 22 and a condensation cover 21. The condensation cover 21 is snapped onto the condensation base 22 to form a condensation chamber, which facilitates the production and installation of the condensation member 2. In some examples, the condensation cover 21 and the condensation base 22 are detachably connected; for example, the condensation cover 21 and the condensation base 22 may be connected by screws, or may be connected by snaps, or the like.

In some examples, the condensation bottom shell 22 may be funnel-shaped. Wherein the first through-hole 24 may be opened at the lowest position of the condensation bottom case 22. Therefore, the condensed water is collected in the first through hole 24 of the condensation bottom shell 22 in a concentrated manner, so that the condensed water can flow into the inner container 1 through the condensation recovery pipe, and the condition of air suction is avoided.

For example, the position of the first through hole 24 (or the lowest position on the condensation bottom shell 22) is vertically offset (i.e., not aligned with) the geometric center (or the geometric center of gravity) of the opening edge of the condensation bottom shell 22, and the shape of the condensation bottom shell 22 may be said to be an eccentric funnel shape.

In some examples, with continued reference to fig. 4, the steam outlet 23 above is provided on the condensation sump 22. The steam outlet 23 may be plural; for example, it may be an odd number or an even number; specifically, it may be 2, 3, 4, 5, 6, etc. The plurality of steam outlets 23 are arranged in rows of steam outlets 23 extending in the first direction. In the second direction (perpendicular to the first direction), the first through hole 24 (or, the lowest position on the condensation bottom case 22) is located at one side of the row of the steam outlets 23. Illustratively, in the second direction, the first through hole 24 (or, the lowest position on the condensation bottom shell 22) is staggered from the steam outlet 23; that is, in the second direction, the first through hole 24 (or, the lowest position on the condensation bottom shell 22) is not directly opposite to the line connecting the two steam outlets 23 at the two ends of the steam outlet 23 row. Therefore, the water accumulation area can be prevented from being formed in the front position and the rear position of the steam outlets 23, the problem that accumulated water is not discharged easily is caused, and condensed water is prevented from being filled in the steam outlets 23 and flowing into the inner container 1.

The opening edge of the condensation bottom case 22 may be substantially rectangular, for example, rectangular, square, rounded rectangular, or rounded positive direction, in which case the opening edge of the condensation bottom case 22 has two sides perpendicular to each other. For example, the first direction and the second direction described above may be parallel to the two mutually perpendicular sides, respectively.

In addition, the condensation bottom case 22 has a boss on an inner wall thereof, and the steam inlet 12 is provided on the boss. Thereby further increasing the height of the steam inlet 12 and preventing the condensate water from being filled and flowing back into the steam inlet 12.

In some examples, at least one set (e.g., one set, and as many sets) of exhaust holes 211 is disposed on the condensation cover 21, and each set of exhaust holes 211 may be one exhaust hole 211, or a plurality of exhaust holes 211 arranged in a row. The exhaust holes 211 can exhaust uncondensed steam in the condensing part 2, and the damage of the condensing part 2 caused by the pressure generated by excessive steam is avoided.

Referring to fig. 5 and 6, the condensation recovery pipe includes: a first connector 31, a second connector 32 and a delivery pipe 33. The first joint 31 penetrates the first through hole 24, and a portion of the first joint 31 protrudes out of the condensation member 2. The second joint 32 is connected to a portion of the first joint 31 located outside the condensation member 2 such that the second joint 32 and the first joint 31 are fixed to the condensation bottom shell 22. In this way, the condenser 2 and the duct 33 can be attached and detached by the first joint 31 and the second joint 32.

The material of the transport pipe 33 can be described in relation to the material of the condensation member 2 described above, so that the transport pipe 33 also has a certain condensation effect. For example, the material of the duct 33 may be the same as the material of the condensation member 2. Furthermore, the material of the duct 33 can also be plastic, in which case the duct 33 has no condensation and only serves for drainage.

In some examples, the duct 33 is connected to the second joint 32 and communicates with the condensation bottom shell 22 through the second joint 32 and the first joint 31 in this order. The condensed water in the condensing chamber flows through the first joint 31, the second joint 32 and the delivery pipe 33 in sequence. That is, the first joint 31 and the second joint 32 function to fixedly connect the condensation member 2 and the delivery pipe 33 and also function to communicate the condensation member 2 and the delivery pipe 33. Fig. 6 is illustrated in this example.

In other examples, the duct 33 is connected to the first joint 31 and communicates with the condensation bottom shell 22 through the first joint 31. The condensed water in the condensing chamber flows through the first joint 31 and the delivery pipe 33 in turn. That is, without passing through the second joint 32, the first joint 31 and the second joint 32 serve to fixedly connect the condensation member 2 and the delivery pipe 33, and the first joint 31 serves to communicate the condensation member 2 and the delivery pipe 33.

Illustratively, the first joint 31 includes: a first tube portion 311 and a first stopper portion 312; the two are connected with each other, for example, the two are connected into an integral structure.

The first pipe portion 311 penetrates the first through hole 24; for example, the outer diameter of the first pipe portion 311 is equal to or smaller than the inner diameter of the first through hole 24, which facilitates the first pipe portion 311 to pass through the first through hole 24. The first pipe part 311 includes a first protruding part 311a and a first protruding part 311b, the first protruding part 311a protrudes out of the condensation member 2 and is connected with the second joint 32, and the first protruding part 311b protrudes into the inside of the condensation bottom case 22. It should be noted that the first penetration portion 311b may be understood as a portion of the first pipe portion 311 located inside the condensation bottom case 22. The first protruding portion 311a may be understood as a portion of the first pipe portion 311 located at the outside of the condensation bottom case 22.

The first stopper 312 is provided in the circumferential direction of the first protruding portion 311b of the first pipe portion 311, or in other words, on the outer wall of the first protruding portion 311b of the first pipe portion 311. And, the first blocking part 312 is caught in the inside of the condensation bottom case 22.

In some examples, the first stop 312 may be a circular ring; the ring may be coaxially fixed to the first pipe portion 311 (e.g., the first protruding portion 311 b). The outer diameter of the ring may be larger than the inner diameter of the first through hole 24, so that the ring is caught in the condensation bottom case 22. In some examples, the first stopper 312 may be a plurality of fixing blocks fixed to the first tube part 311 (e.g., the first penetration part 311 b); the plurality of fastening blocks may be located within a cross-sectional plane 3612 of the first tube portion 311 (i.e., a plane 3612 perpendicular to the axial direction of the first tube portion 311). In the radial direction of the first pipe portion 311, the minimum distance from the axis of the first pipe portion 311 (e.g., the first insertion portion 311 b) to the fixing block is greater than the inner diameter of the first through hole 24, so that the fixing blocks can be engaged with the condensation bottom case 22.

The second joint 32 includes: a second tube portion 321 and a bent tube portion 322. The second pipe portion 321 is connected to the first joint 31. The bent pipe portion 322 communicates with the second pipe portion 321, and communicates with one end of the delivery pipe 33; wherein, the included angle between the bending pipe portion 322 and the second pipe portion 321 is 45-135 degrees. The space of the outer bottom of the condensation member 2 can be reduced by providing the bent pipe portion 322. The bent pipe portion 322 communicates with one end of the delivery pipe 33; for example, one end of the delivery tube 33 may be inserted into the bent tube portion 322 with an interference fit.

In some examples, second tube portion 321 and bend tube portion 322 may be integrally provided.

In some examples, the angle between the bent tube portion 322 and the second tube portion 321 may be 45 °, 60 °, 90 °, 120 °, 135 °, and so on.

In some embodiments, the first connector 31 and the second connector 32 are removably connected. Illustratively, the first and

second fittings

31, 32 are threadably connected.

In some examples, the outer wall of the first joint 31 is provided with external threads, the inner wall of the second joint 32 is provided with internal threads, and the outer wall of the first joint 31 and the inner wall of the second joint 32 are threadedly connected. For example, a male screw is provided on the outer wall of the first pipe portion 311 of the first joint 31. An internal thread is provided on the inner wall of the second pipe portion 321 of the second joint 32. The first pipe portion 311 and the second pipe portion 321 are screwed.

In other examples, the inner wall of the first connector 31 is provided with an internal thread, the outer wall of the second connector 32 is provided with an external thread, and the inner wall of the first connector 31 and the outer wall of the second connector 32 are threadedly connected.

Since a portion of the first connector 31 (e.g., the first stopper 312) is located in the condensation member 2, when the first connector 31 and the second connector 32 are disassembled, the first connector 31 rotates in the first through hole 24, which is inconvenient to disassemble. Therefore, the cross-sectional shape of the inner wall of the first joint 31 is a polygon, which may be one of a regular triangle, a quadrangle, a regular hexagon, and the like; in this way, when the first joint 31 is assembled and disassembled, an operator can insert the first joint 31 into the inner wall of the first joint 31 from the inside of the condensation member 2 by using a conventional wrench, and the first joint 31 can be prevented from rotating, so that the first joint 31 and the second joint 32 can be assembled and disassembled more easily.

Since the second connector 32 is located outside the condensation member 2, the second connector 32 includes a bent pipe portion 322, so that the bent pipe portion 322 can be held by hand and the second connector 32 can be screwed to the first connector 31 by hand. In order to facilitate the detachment of the first joint 31 and the second joint 32, the cross-sectional shape of the outer wall of the second joint 32 is a polygon, which may be one of a regular triangle, a quadrangle, a regular hexagon, and the like. Thus, an operator can use a conventional wrench to clamp the outer wall of the second joint 32, so that the first joint 31 and the second joint 32 can be assembled and disassembled more easily.

In some examples, when the first and

second joints

31 and 32 have impurities or rust, it is inconvenient to disassemble the first and

second joints

31 and 32, and in connection with the above examples, the first and

second joints

31 and 32 are disassembled by inserting a wrench into an inner wall of the first joint 31 and catching on an outer wall of the second joint 32, respectively.

In addition, the cross-sectional shape of the inner wall of the first joint 31 and the cross-sectional shape of the outer wall of the second joint 32 may be other shapes, but a special wrench is needed for matching, and although the shapes can also be used, the cost is high.

In some embodiments, the first connector 31 and the second connector 32 may be connected by means of a snap, a hook and loop fastener, or the like.

In some embodiments, the condensate recovery pipe further comprises a first gasket 34. Thereby preventing a water leakage from occurring at the first through hole 24, the first joint 31 and the second joint 32. Wherein the first seal 34 may be in the shape of a circular ring. The first seal 34 may be made of metal or rubber. In some examples, the first packing 34 is disposed between the first pipe part 311 and the outer wall of the condensation bottom case 22. In other examples, the first gasket 34 is disposed between the first blocking part 312 and the inner wall of the condensation bottom case 22.

In some embodiments, with continued reference to fig. 1, the position of the condensation member 2 is higher than that of the liner 1, that is, the connection position of the delivery pipe 33 and the condensation member 2 is higher than that of the delivery pipe 33 and the liner 1; this allows the condensed water in the condensing chamber to flow into the inner container 1 by gravity.

Of course, the condensed water in the condensation chamber can also flow into the inner container 1 by other methods. Illustratively, the condensate recovery pipe further includes a one-way water pumping structure 35. The one-way water pumping structure 35 is disposed on the delivery pipes 33 (for example, the one-way water pumping structure 35 is communicated with the middle of one delivery pipe 33), and the one-way water pumping structure 35 is configured to feed water in the condensation chamber into the liner 1 and prohibit steam in the liner 1 from flowing into the condensation chamber. The condensed water in the condensing cavity can be pumped out and drained to the inner container 1 through the one-way water pumping structure 35, and meanwhile, the steam in the inner container 1 can be prevented from flowing to the condensing part 2 through the conveying pipe 33.

In some examples, the one-way pumping structure 35 may be a one-way water pump. In other examples, the one-way pumping structure 35 may be a combination of a water pump and a one-way valve (e.g., a one-way solenoid valve, a ball valve, etc.). The above-mentioned function of one-way pumping is all taken water through above-mentioned two kinds of one-way structures 35 that draw water.

In addition, as explained in conjunction with the first through hole 24 and the steam outlet 23 of the condensation bottom case 22, when the level of the condensed water in the condensation bottom case 22 approaches the steam outlet 23, the condensed water in the condensation chamber can be drained into the inner container 1 through the delivery pipe 33 by the one-way water pumping structure 35.

The inner container 1 is provided with the second through hole 11 at a position close to the bottom of the inner container, and the second through hole 11 is arranged at a position between the clamping groove and the bottom wall of the inner container 1 in the inner container 1, so that the condensate water flowing out of the conveying pipe 33 can be prevented from being sprayed on food.

Referring to fig. 7 and 8, the condensation recovery pipe further includes: a third joint 36 and a fastener 37. The third joint 36 penetrates through the second through hole 11; part of the third joint 36 extends to the outside of the liner 1. The fastening member 37 is connected to a portion of the third joint 36 located outside the inner container 1, so that the third joint 36 is fixed in the second through hole 11 of the inner container 1. The other end of the conveying pipe 33 is communicated with the inner container 1 through a third joint 36, and the third joint 36 is fixed on the inner container 1 through a fastening piece 37.

Exemplarily, referring to fig. 8, the third joint 36 includes a third pipe portion 361, a fourth pipe portion 362, and a second blocking portion 363. The third tube part 361 penetrates through the second through hole 11, the third tube part 361 comprises a second extending part 361a and a second extending part 361b, the second extending part 361a extends out of the inner container 1, and the second extending part 361b extends into the inner container 1; the fastener 37 is connected to the second protruding portion 361 a. The second protruding portion 361a is a portion of the third tube portion 361 located outside the inner bag 1. The second protruding portion 361b is a portion of the third tube portion 361 located inside the inner bag 1.

The fourth pipe portion 362 communicates with the second protruding portion 361a and with the other end of the delivery pipe 33. The outer diameter of the third pipe portion 361 is equal to or larger than the outer diameter of the fourth pipe portion 362; this facilitates the passage of the fastener 37 through the fourth tube portion 362 and into engagement with the third tube portion 361.

The second blocking part 363 is provided in a circumferential direction of the second penetration portion 361b, or the second blocking part 363 is provided on an outer wall of the second penetration portion 361 b. For example, the two may be connected in a unitary structure. The second blocking portion 363 is engaged with the inner container 1.

In some examples, the second stop 363 may be a circular ring; the ring may be coaxially fixed to the third pipe portion 361 (e.g., the first protruding portion 311 b). The outer diameter of the ring can be larger than the inner diameter of the second through hole 11, so that the ring is clamped on the inner side of the inner container 1. In some examples, the second blocking part 363 may be a plurality of fixing blocks fixed to the third pipe part 361 (e.g., the second penetration part 361 b); wherein the plurality of fixing blocks may be located in a cross-sectional plane of the third pipe portion 361 (i.e., a plane perpendicular to an axial direction of the third pipe portion 361). In the radial direction of the third pipe portion 361, the minimum distance from the axis of the third pipe portion 361 (e.g., the second extending portion 361 b) to the fixing blocks is greater than the inner diameter of the second through hole 11, so that the fixing blocks can be clamped inside the inner container 1.

In some embodiments, with continued reference to fig. 8, the condensate recovery pipe further comprises a second gasket 38. Thereby preventing a water leakage situation at the second through hole 11, the third joint 36 and the fastener 37. Wherein the second gasket 38 may be circular in shape. The second gasket 38 may be made of metal or rubber. In some examples, the second gasket 38 is disposed between the second barrier 363 and the inner wall of the liner 1. In other examples, a second gasket 38 is disposed between the fastener 37 and the outer wall of the liner 1.

In some embodiments, the third joint 36 and the fastener 37 are removably connected. Illustratively, the outer wall of the third joint 36 is provided with external threads, and the fastening member 37 may be a nut that is then threaded onto the outer wall of the third joint 36.

In some examples, the third tube portion 361 has external threads disposed thereon. For example, the second protruding portion 361a is provided with an external thread; for example, the second protruding portion 361a and the second protruding portion 361b are provided with external threads. The fastener 37 is threaded through the fourth tube portion 362 and onto the third tube portion 361.

In some examples, referring to fig. 9, the outer wall of the third tube portion 361 is comprised of at least one arcuate face 3611 and at least one flat face 3612 connected along a circumference of the third tube portion 361; that is, the outer surface of the third duct portion 361 may include at least one curved surface 3611 and at least one flat surface 3612. For example, referring to fig. 10, the outer wall of the third duct portion 361 includes an arc-shaped face 3611 and a flat face 3612, and the height (distance in the radial direction) of the arc-shaped face 3611 is larger than the outer diameter of the third duct portion 361; this makes the outer wall of the third duct portion 361D-shaped in cross section. For another example, the outer wall of the third duct portion 361 includes two arc-shaped faces 3611 and two flat faces 3612, wherein the two flat faces 3612 are symmetrically disposed along the axis of the third duct portion 361; this makes the outer wall of the third duct portion 361 approximately annular in cross section.

In some examples, the shape of the second through hole 11 is adapted to the shape of the outer wall of the third pipe portion 361. For example, the shape of the second through hole 11 may be the above-described D-shape. For another example, the shape of the second through hole 11 may be an approximately annular shape. The third tube portion 361 and the second through hole 11 are arranged such that the third tube portion 361 does not rotate with respect to the second through hole 11 after the third tube portion 361 is inserted into the second through hole 11.

In a possible realization, the arc-shaped surface 3611 is provided with an external thread and the inner wall of the fastening member 37 is provided with an internal thread, i.e. the fastening member 37 is a nut. The inner wall of the fastener 37 is threadedly coupled to the arcuate surface 3611 of the third tube portion 361.

In some examples, the second through hole 11 may not fit with the outer wall of the third pipe portion 361, i.e., the shape of the second through hole 11 may be circular. The cross-section of the inner wall of the third duct portion 361 is polygonal at this time. The polygon may be one of a regular triangle, a quadrangle, a regular hexagon, and the like. In this way, an operator can insert the inner container 1 into the inner wall of the third tube portion 361 with a conventional wrench, so that the third joint 36 can be prevented from rotating when the third joint 36 and the fastening member 37 are disassembled. In addition, the cross-sectional shape of the inner wall of the third tube portion 361 could be other shapes, but this would require a specially made wrench for use, although it could be used, but at a higher cost.

In some embodiments, with continued reference to fig. 1, the steam oven further comprises a housing, a water reservoir 9, a steam generator 7, a water-vapor separator 8, a water inlet pump 5, a water return pump 6, and the like. The water storage tank 9 is communicated with the water inlet pump 5 and the water return pump 6, the water inlet pump 5 and the water return pump 6 are communicated with the steam generator 7 through a tee joint (such as an electromagnetic three-way valve), the steam generator 7 is communicated with the water-vapor separator 8, and the water-vapor separator 8 is communicated with the liner 1.

When food is steamed and roasted, the water in the water storage tank 9 is conveyed into the steam generator 7 through the tee joint by the water inlet pump 5, the steam generator 7 turns the water into steam and conveys the steam to the steam separator 8, and the steam is conveyed into the inner container 1 by the steam after the water in the steam is filtered by the steam separator 8, so that the food can be steamed and roasted by the steam. Wherein the filtered water is returned to the steam generator 7. After the food steaming and baking are finished, the water return pump 6 is turned on, and the residual or condensed water in the inner container 1 is pumped into the water storage tank 9.

In some examples, the water level of the steam generator 7 is equal to the water level of the water-steam separator 8, so that it is ensured that steam enters the inner container 1, and hot water is prevented from being sprayed into the inner container 1.

In some examples, the water return pump 6 and the water inlet pump 5 are both one-way pumps, avoiding a backflow situation. That is, the water inlet pump 5 can only deliver the water in the water storage tank 9 to the steam generator 7 through the tee joint. The water in the liner 1 (or the water-vapor separator 8) is conveyed to the water storage tank 9 by the backwater pump 6 through a tee joint.

In some embodiments, the steam oven further comprises a heat dissipation fan. In some examples, the heat dissipation fan is close to the exhaust holes 211, that is, the steam coming out of the exhaust holes 211 may be carried to the outside of the steaming oven by the wind (e.g., cool wind) blown by the heat dissipation fan. In some embodiments, the steam oven further comprises a heat insulation plate, which is disposed outside the inner container 1 and is fixedly connected with the inner container 1. Wherein the water return pump 6, the water inlet pump 5, the water storage tank 9, the steam generator 7, the water-steam separator 8, the condensing element 2 and the like are fixed on the heat insulation plate.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art will appreciate that changes or substitutions within the technical scope of the present disclosure are included in the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A steam oven, comprising:

the steam outlet is formed in the inner container;

the condensation piece is provided with a condensation cavity, the bottom of the condensation piece is provided with a first through hole communicated with the condensation cavity, the condensation piece is provided with a steam inlet communicated with the steam outlet of the inner container, and the position of the first through hole is lower than that of the steam inlet;

one end of the condensation recovery pipe fitting is communicated with the condensation cavity through the first through hole, the other end of the condensation recovery pipe fitting is communicated with the inner container, and condensed water in the condensation cavity can flow to the bottom of the inner container through the condensation recovery pipe fitting;

and the heating structure is fixedly connected with the inner container and is configured to heat the bottom of the inner container.

2. The steam oven of claim 1, wherein the condensing member comprises:

the first through hole is formed in the condensation bottom shell; and (c) a second step of,

the condensation cover is buckled on the condensation bottom shell to form the condensation cavity;

one end of the condensation recovery pipe fitting is communicated with the condensation bottom shell through the first through hole.

3. The steam oven of claim 2, wherein the condensation recovery duct comprises:

the first joint penetrates through the first through hole, and part of the first joint extends out of the condensation piece;

a second joint connected to a portion of the first joint located outside the condensing part such that the second joint and the first joint are fixed to the condensing bottom case;

the conveying pipe is connected with the second joint and is communicated with the condensation bottom shell through the second joint and the first joint; or, the first joint is connected with the condensation bottom shell and communicated with the condensation bottom shell through the first joint.

4. The steam oven of claim 3, wherein the first joint comprises:

the first pipe part penetrates through the first through hole and comprises a first extending part and a first extending part, the first extending part extends out of the condensation part and is connected with the second joint, and the first extending part extends into the condensation bottom shell;

first stopper sets up first pipe portion first stretch into the week of part on to the joint is in the inside of condensation drain pan.

5. The steam oven of claim 3, wherein the second joint comprises:

a second pipe portion connected to the first joint;

a bent pipe portion communicated with the second pipe portion and communicated with one end of the delivery pipe; wherein an included angle between the bent pipe part and the second pipe part is 45-135 degrees.

6. The steam oven of claim 3,

the outer wall of the first joint is provided with external threads, the inner wall of the second joint is provided with internal threads, and the outer wall of the first joint is in threaded connection with the inner wall of the second joint;

the cross section of the inner wall of the first joint is polygonal; and/or the cross-sectional shape of the outer wall of the second joint is polygonal.

7. The steam oven of claim 3, wherein the condensation recovery duct further comprises:

the one-way water pumping structure is arranged on the conveying pipe and is configured to convey the water in the condensation cavity into the inner container and inhibit the steam in the inner container from flowing into the condensation cavity.

8. The steam oven of claim 3,

the inner container is provided with a second through hole at a position close to the bottom of the inner container;

the condensation recovery pipe fitting further comprises:

the third joint penetrates through the second through hole, and part of the third joint extends to the outer side of the inner container;

and the fastening piece is connected with the part, positioned outside the inner container, of the third joint, so that the third joint is fixed in the second through hole of the inner container.

9. The steam oven of claim 8, wherein the third joint comprises:

the third pipe part penetrates through the second through hole and comprises a second extending part and a second extending part, the second extending part extends out of the inner container, and the second extending part extends into the inner container; the fastener is connected with the second protruding part;

a fourth pipe portion communicating with the second projecting portion and with the other end of the delivery pipe; the outer diameter of the third pipe part is larger than or equal to that of the fourth pipe part;

and the second blocking part is arranged on the periphery of the second extending-in part and is clamped in the inner container.

10. The steam oven of claim 9,

the outer wall of the third pipe part is formed by connecting at least one arc-shaped surface and at least one plane along the circumferential direction of the third pipe part; the shape of the second through hole is matched with the shape of the outer wall of the third pipe part;

the arc-shaped surface is provided with external threads, the inner wall of the fastener is provided with internal threads, and the inner wall of the fastener is in threaded connection with the arc-shaped surface of the third pipe part.