CN210961555U - Steam oven with low processing cost - Google Patents

Abstract

The utility model relates to a steam oven with low processing cost. The water tank setting of current steam oven leads to the processing cost higher in the casing. The utility model discloses a casing, steam generation subassembly and door plant subassembly, steam generation subassembly include water tank, water pump and steam generator, and water source forms the steam in input culinary art chamber through steam generator in the water pump extraction water tank, is equipped with the assembly chamber in the door plant subassembly, and the water tank setting is in the assembly intracavity. Set up the assembly chamber in the door plant subassembly, the assembly chamber provides installation space for the water tank, make the water tank can set up in the door plant subassembly, existing effect reduces the casing volume, reduce the raw materials quantity, reduce the cost of transportation, still make the water tank expose, conveniently observe the water yield in the water tank, prevent that the steam oven from taking place the condition that can't use because of the water source exhausts in the water tank, play thermal-insulated effect again, prevent that door plant subassembly exposure face from taking place the condition of scalding the user because of the outside transmission of culinary art intracavity heat, ensure safe in utilization.

Description

Steam oven with low processing cost

Technical Field

The utility model relates to a food processing field, concretely relates to steam oven.

Background

Steam ovens have been widely used by people. Current steam oven includes casing and steam generation subassembly, be equipped with the culinary art chamber in the casing, the preceding lateral wall in culinary art chamber is equipped with the door plant subassembly that can open and shut, steam generation subassembly includes water tank, water pump and steam generator, and water source and steam generator formation input culinary art chamber in the water tank are extracted to the water pump. Current steam oven all sets up the water tank in culinary art chamber lateral part, and this kind of structure has following defect: because the water tank is hidden in the casing, lead to the casing volume increase, raw materials cost and transportation package cost have been increased, when using, the user can only observe the water level condition in the water tank through the mode of opening door body group spare, can't in time supply the water source to the water tank, lead to the steam water tank to influence the culinary art effect because of the water source exhausts easily, in addition, when steam oven during operation, the culinary art intracavity heat can outwards transmit through door body group spare, the user is because of the condition that the contact door body group spare takes place to scald easily, influence the safety in utilization.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides a steam oven that processing cost is low sets up the water tank in door plant subassembly, and existing effect reduces the casing volume, reduces the raw materials quantity, reduces the cost of transportation, still conveniently observes the water tank water yield, promotes to use and experiences.

The utility model discloses a following mode realizes: the utility model provides a steam oven that processing cost is low, includes casing and steam generation subassembly, be equipped with the culinary art chamber in the casing, set up the uncovered that leads to with the external world on the preceding wall in culinary art chamber, be equipped with the door plant subassembly on uncovered, the door plant subassembly can swing ground through the hinge and cover and close uncovered, the steam generation subassembly includes water tank, water pump and steam generator, and water source and steam through steam generator formation input culinary art chamber in the water pump extraction water tank, be equipped with the assembly chamber in the door plant subassembly, the water tank sets up the assembly intracavity. Set up the assembly chamber in the door plant subassembly, the assembly chamber provides installation space for the water tank, make the water tank can set up in the door plant subassembly, existing effect reduces the casing volume, reduce the raw materials quantity, reduce the cost of transportation, still make the water tank expose, conveniently observe the water yield in the water tank, prevent that the steam oven from taking place the condition that can't use because of the water source exhausts in the water tank, play thermal-insulated effect again, prevent that door plant subassembly exposure face from taking place the condition of scalding the user because of the outside transmission of culinary art intracavity heat, ensure safe in utilization. Rely on the current structure of door plant to realize the water tank installation, effectively utilize current resource, space utilization promotes.

Preferably, the water pump is arranged in the shell, a water outlet is formed in the bottom of the water tank, and the water outlet is communicated with the water pump through a guide pipe. The delivery port sets up in the water tank bottom, and the water source can utilize self gravity to pass through the delivery port and arrange outward, and the water pump setting is in the casing, and the water tank setting is in the door plant subassembly that can open and shut, through pipe connection between water tank and water pump, and the pipe both plays the effect at transport water source, can also with the door plant subassembly cooperation action that opens and shuts, and the leakproofness of pipe transport when guaranteeing the door plant subassembly to open and shut guarantees the water tank and to the stability that the water pump supplied water.

Preferably, the conduit is a bendable hose, one end of the hose is communicated with the water outlet, and the other end of the hose sequentially penetrates through the bottom of the door panel assembly and the shell and is communicated with the water pump. The water tank is communicated with the water pump through the hose, the two ends of the hose are communicated with the water tank water outlet and the water pump water inlet respectively, the middle section of the hose can be bent in a telescopic mode, when the water tank is frequently opened and closed along with the door body assembly, the hose can utilize self deformation to deal with relative displacement between the door body assembly and the shell, connection sealing performance between the water tank and the water pump is ensured, and then stable operation of the steam oven is ensured.

Preferably, the door panel assembly is swingably covered on the opening through a hinge, the guide pipe comprises a movable pipe communicated with the water outlet and a fixed pipe communicated with the water pump, the movable pipe and the fixed pipe are in sealed insertion connection, and when the door panel assembly swings and opens with the hinge as a center, the outer connecting end of the movable pipe rotates in the outer connecting end of the fixed pipe with the hinge as a center. The door panel assembly swings by taking the hinge axis as a center, and the movable pipe can synchronously and concentrically rotate with the door panel assembly, so that the swinging of the door panel assembly is not influenced by the guide pipe, the water tank is always communicated with the water pump, and the stable operation of the steam oven is further ensured.

Preferably, the top of the water tank is provided with a water inlet exposed out of the door panel assembly, the water inlet is provided with a one-way valve, and an external water source flows into the water tank through the one-way valve. The water inlet of water tank sets up at the top of door plant subassembly, ensures that external water source can utilize self gravity trickling to the water tank bottom, makes things convenient for external water source to fill the water tank. The water inlet department is equipped with the check valve, and the check valve can guide external water source to flow into the water tank, can also prevent that the water source from taking place the condition of overflowing from the water inlet when the door plant subassembly swings in the water tank, ensures steam oven steady operation.

Preferably, the door panel assembly comprises an outer door frame, and the assembly cavity is arranged in the outer door frame. The assembly chamber sets up in outer door frame, and the water tank rigid coupling is in outer door frame, and outer door frame both had played the bearing positioning action to the water tank, still played water protection tank's effect, prevented that the water tank from influencing the volumetric condition because of the atress deformation.

Preferably, the door plate assembly comprises outer door glass and inner door glass, a through hole is formed in the outer door frame, and the outer door glass and the inner door glass respectively block ports of the through hole and enclose to form the assembly cavity. The outer door glass and the inner door glass play a role in plugging the outer port and the inner port of the through hole, so that an assembly cavity isolated from the outside is formed in an enclosing mode, and the safety of the water tank is ensured.

Preferably, the water tank is a transparent tank body, and the outer door glass, the water tank and the inner door glass are sequentially arranged from outside to inside to form a visual channel. The user both can guarantee steam oven normal operating through water level in the visual passageway observation water tank, can also observe the culinary art intracavity through visual passageway and eat the material, promote the culinary art quality.

Preferably, the outer door glass completely covers the front end face of the outer door frame, the inner door glass is fixedly connected to the rear end face of the outer door frame, and the outer door frame, the outer door glass and the inner door glass enclose to form the assembly cavity. The forward projection of outer door glass and outer door frame each other is coincidence, and outer door glass plays the effect of sheltering from outer door frame, ensures the aesthetic property, and interior door glass plays the effect of keeping apart culinary art chamber and assembly chamber, prevents that fluid from increasing the clean degree of difficulty because of adhering to in the assembly chamber.

Preferably, the door plate assembly comprises an inner door frame, the inner door frame is fixedly connected with the outer door frame and clamps the inner door glass, and the bottom edge of the inner door frame is connected to the bottom edge of the opening through a hinge. But door plant subassembly is connected on the casing through interior door frame swing open and shut, and interior door frame both plays the effect of bearing door plant subassembly, still plays fixed interior door glass's effect with outer door frame cooperation, can link up with uncovered sealed again, prevents that the culinary art intracavity steam is excessive, promotes heat utilization efficiency.

Preferably, a heat insulation gap is arranged between the water tank and the inner door glass, the thickness of the heat insulation gap is A, A is more than or equal to 3mm and less than or equal to 8mm, the safety of the water tank is ensured, the water tank is prevented from being softened and deformed due to the fact that the water tank is too close to the inner door glass, the water tank is ensured to have larger capacity, and the water consumption required by normal use is met. When A < 3mm, the distance between the water tank and the inner door glass is small, the water tank is easy to melt and deform, the service life of the water tank is influenced, and when A > 8mm, the volume of the water tank is too small, so that the water consumption required by steam cooking cannot be met.

Preferably, the middle part of the outer door frame is recessed outwards to form the assembly cavity. The middle part of outer door frame forms the assembly chamber of counter bore form through sunken, and outer door frame has better resistance and becomes the performance, plays the guard action to the water tank, and the water tank is installed in the assembly intracavity, and the outer door frame middle part space of existing effective utilization still effectively prevents to cook the intracavity heat and outwards spreads.

The utility model has the advantages that: set up the assembly chamber in the door plant subassembly, the assembly chamber provides installation space for the water tank, make the water tank can set up in the door plant subassembly, existing effect reduces the casing volume, reduce the raw materials quantity, reduce the cost of transportation, still make the water tank expose, conveniently observe the water yield in the water tank, prevent that the steam oven from taking place the condition that can't use because of the water source exhausts in the water tank, play thermal-insulated effect again, prevent that door plant subassembly exposure face from taking place the condition of scalding the user because of the outside transmission of culinary art intracavity heat, ensure safe in utilization.

Drawings

FIG. 1 is a schematic view of a disassembled structure of a steam oven according to an embodiment;

FIG. 2 is a schematic view of an assembly structure of the water tank according to the second embodiment;

FIG. 3 is a schematic view of a disassembled structure of a door panel assembly according to the third embodiment;

FIG. 4 is a schematic cross-sectional view of a door panel assembly according to a third embodiment;

in the figure: 1. the cooking device comprises a shell, 11, a cooking cavity, 2, a door panel assembly, 21, an outer door frame, 22, outer door glass, 23, inner door glass, 24, an inner door frame, 25, a heat insulation gap, 3, a water tank, 31, a water outlet, 32, a water inlet, 321, a one-way valve, 4 and a conduit.

Detailed Description

The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the invention.

The first embodiment is as follows:

the present embodiment provides a steam oven that is low in manufacturing cost.

A steam oven as shown in fig. 1 comprises a casing 1 and a steam generating assembly, wherein a cooking cavity 11 is arranged in the casing 1, an opening communicated with the outside is formed in the front wall surface of the cooking cavity 11, a door panel assembly 2 is arranged on the opening, the door panel assembly 2 can be covered on the opening in a swinging mode through a hinge, the steam generating assembly comprises a water tank 3, a water pump and a steam generator, a water source in the water pump extraction water tank 3 forms steam input into the cooking cavity 11 through the steam generator, an assembly cavity is arranged in the door panel assembly 2, and the water tank 3 is arranged in the assembly cavity.

In this embodiment, be equipped with culinary art chamber 11 in the casing 1, set up uncovered on the preceding wall in culinary art chamber 11, be equipped with door plant subassembly 2 on the uncovered, door plant subassembly 2 can install on uncovered through the hinge with opening and shutting for door plant subassembly 2 can be in the uncovered closed station of shutoff and uncovered swing between opening the station and switch.

In this embodiment, be equipped with hot-blast chamber in the casing 1 and locate the hot-blast subassembly in the hot-blast chamber, the hot-blast chamber sets up at casing 1 rear portion and leads to with culinary art chamber 11 back wall, hot-blast subassembly includes heating member and fan. When the cooking device is used, the air flow driven by the fan flows through the heating element and forms hot air blown into the cooking cavity 11, and the hot air heats and cooks the food materials.

In this embodiment, a steam generating assembly is arranged in the housing 1, and the steam generating assembly includes a water tank 3, a water pump and a steam generator. When the device is installed, the water tank 3 is connected with the water pump, the water pump is connected with the steam generator, and the steam generator is connected with the cooking cavity 11 through pipelines. When the food steaming machine is used, the water pump extracts water source in the water tank 3 and conveys the water source to the steam generator, the steam generator heats the water source and forms steam which is input into the cooking cavity 11, and the steam steams and cooks food. The hot air component drives the steam to be uniformly distributed in the cooking cavity 11 so as to realize cooking processing.

When using the steaming oven, hot-blast subassembly and steam generation subassembly simultaneous working heat the culinary art to eating the material, and at this in-process, steam generation subassembly is to lasting steam of carrying in the culinary art chamber 11, ensures to eat the material and is rich in moisture, and hot-blast subassembly can be heated the steam in the culinary art chamber 11 circulation reciprocatingly, and existing effect promotes the water source utilization efficiency, still imitates and promotes culinary art efficiency.

In this embodiment, water tank 3 sets up in the installation cavity that is located 1 lateral part of casing, and the accent of installation cavity is by door plant component 2 shutoff, and when using, water tank 3 need expose after door plant component 2 opens again, both leads to 1 bulky of casing, has increased raw materials cost and cost of transportation, still can't observe the water yield operation and add the water operation when door plant component 2 closes for the steam oven takes place the condition that the water source supplies absolutely easily when using, and the influence is used and is experienced. Therefore, an assembly cavity is arranged in the door panel assembly 2, the water tank 3 is arranged in the assembly cavity, the position of the water tank 3 is improved into the door panel assembly 2 from the original side part of the shell 1, the space in the door panel assembly 2 is effectively utilized, the size of the shell 1 is effectively reduced, and further the raw material consumption and the transportation cost are reduced.

In this embodiment, water tank 3 is installed in door plant subassembly 2, water tank 3 plays thermal-insulated effect, the heat in the culinary art chamber 11 can't directly pass through door plant subassembly 2 and outwards transmit, the water source in the water tank 3 can effectively absorb the heat that comes from the culinary art chamber 11, and carry out preheating before sending into steam generator, effectively promote heat utilization efficiency, in addition, because on the unable direct transmission of heat to door plant subassembly 2's of the intracavity of culinary art intracavity, effectively prevent the condition that the user takes place to scald because of touching door plant subassembly 2, promote the safety in utilization.

Example two:

in contrast to the first embodiment, the present embodiment provides a specific structure of a steam oven.

As shown in fig. 2, the water pump is disposed in the housing 1, a water outlet 31 is disposed at the bottom of the water tank 3, and the water outlet 31 is communicated with the water pump through a conduit 4. One end and the 31 sealing connection of delivery port of pipe 4, the other end and the water inlet 32 sealing connection of water pump, water source in the water pump passes through pipe 4 extraction water tank 3, and then supplies water to steam generator, ensures that steam generation subassembly can steadily carry steam to culinary art chamber 11.

In this embodiment, the water tank 3 is fixedly connected in the assembly cavity, so that the water tank 3 can swing synchronously with the door panel assembly 2. The water outlet 31 is arranged at the bottom of the water tank 3, when the water tank 3 synchronously swings along with the door panel component 2, the water outlet 31 is always positioned at the lowest point of the water tank 3, the water source in the water tank 3 is ensured to always submerge the water outlet 31, a water pump is further ensured to always obtain a required water source, and the normal operation of the steam generation component is ensured.

In this embodiment, water tank 3 locates in door plant subassembly 2, the water pump sets up in casing 1, and pipe 4 sets up in door plant subassembly 2 and casing 1's articulated department, and door plant subassembly 2 and casing 1 interval change and displacement change here are all less, both ensure that pipe 4 can not obstruct door plant subassembly 2 swing that opens and shuts, ensure that door plant subassembly 2 smoothly opens and shuts, still ensure that pipe 4 can not take place the condition of extrusion deformation because of tensile the buckling, ensure that pipe 4 keeps unobstructed.

In this embodiment, the top of the water tank 3 is provided with a water inlet 32 exposed out of the door panel assembly 2, a one-way valve 321 is disposed at the water inlet 32, and an external water source flows into the water tank 3 through the one-way valve 321. The check valve 321 not only controls the flow direction of the water source, but also blocks water and prevents leakage. The external water can flow into the water tank 3 through the check valve 321, and the water in the water tank 3 cannot overflow through the check valve 321.

In this embodiment, water inlet 32 is seted up at 3 tops of water tank, and the water source is in 3 bottoms of water tank because of self action of gravity for 3 tops of water tank reserve have the space of receiving external water source, prevent that water inlet 32 from taking place to hinder the condition that external water source flowed in because of being submerged by the water source in the water tank 3, conveniently add water operation to water tank 3. When the door panel assembly 2 is in the open position, the water tank 3 is horizontally arranged, and water in the water tank 3 can be prevented from leaking out from the water inlet 32 by arranging the one-way valve 321.

In this embodiment, the water inlet 32 is exposed on the top surface of the door panel assembly 2, and when the door panel assembly 2 is in the closed station, the top surface of the door panel assembly 2 is flush with the top surface of the casing 1, so that the water inlet 32 is exposed. The user can be in the condition of not opening door plant subassembly 2 under to water tank 3 operation of adding water, compare in original water mode of adding, the water step of adding is simplified to existing effect, can also add water operation to water tank 3 on the way in steam generation subassembly operation, promotes to use and experiences.

The rest of the structure and effect of the steam oven described in this embodiment are all consistent with the embodiments, and are not described again.

Example three:

in comparison with the second embodiment, the present embodiment provides another specific structure of the steam oven.

As shown in fig. 3, the conduit 4 is a flexible hose, one end of the flexible hose is connected to the water outlet 31, and the other end of the flexible hose sequentially passes through the bottom of the door panel assembly 2 and the housing 1 and then is connected to the water pump. The hose has bendable and scalability, both ends of the hose are respectively communicated with the water outlet 31 of the water tank 3 and the water inlet 32 of the water pump in a sealing manner, the hose middle section is also ensured to be deformed in a telescopic manner along with the relative displacement of the door panel assembly 2 and the shell 1, and the water source between the water tank 3 and the water pump is ensured to be conveyed smoothly. The bottom surface of the door plate component and the front edge of the bottom surface of the shell are provided with corresponding notches, and two ends of the hose respectively penetrate through the corresponding notches and then are communicated with the water pump and the water outlet 31.

In the present embodiment, the door panel assembly 2 includes an outer door frame 21, and the assembly chamber is disposed in the outer door frame 21. The outer periphery outline of the outer door frame 21 is matched with the front wall periphery outline of the shell 1, so that the outer door frame 21 can effectively block the opening. The through-hole that link up around the internal periphery of outer door frame 21 encloses and forms, the through-hole forms the assembly chamber, has both ensured that water tank 3 can be firmly fixed a position, still plays the guard action to water tank 3, prevents that water tank 3 from taking place deformation because of receiving the exogenic action.

In this embodiment, the door panel assembly 2 includes an outer door glass 22 and an inner door glass 23, a through hole is provided on the outer door frame 21, and the outer door glass 22 and the inner door glass 23 respectively block a port of the through hole and enclose to form the assembly cavity. The outer door glass 22 completely covers the front end face of the outer door frame 21, the inner door glass 23 is fixedly connected to the rear end face of the outer door frame 21, and the outer door frame 21, the outer door glass 22 and the inner door glass 23 enclose to form the assembly cavity. The outer door glass 22 is fixedly attached to the front wall surface of the outer door frame 21 to effectively block the front end opening of the through hole, and the inner door glass 23 is fixedly attached to the rear wall surface of the outer door frame 21 to effectively block the rear end opening of the through hole. The outer door frame 21, the outer door glass 22 and the inner door glass 23 are matched and installed to wrap the water tank 3. After the water tank 3 is installed in place, the water tank 3 is positioned in the through hole, a water inlet 32 of the water tank 3 extends upwards and is exposed out of the top surface of the outer door frame 21, and a water outlet 31 of the water tank 3 extends downwards and is communicated with the end part of the corresponding conduit 4; the assembly cavity is isolated from the external space through the outer door glass 22, so that the situation that a user is scalded due to contact with the water tank 3 is effectively prevented; the assembly chamber is isolated with culinary art chamber 11 through interior door glass 23, effectively prevents to cook interior oil smoke entering assembly chamber of chamber 11, and then convenient cleanness. In addition, the heat in the cooking cavity 11 needs to pass through the inner door glass 23, the water tank 3 and the outer door glass 22 in sequence and then can be diffused to the external space, so that the heat insulation performance of the cooking cavity 11 is effectively improved, and the heat utilization efficiency is improved. The outer door glass 22 and the outer door frame 21 are fixedly connected through a fastener.

In this embodiment, water tank 3 is transparent box, outer door glass 22, water tank 3 and interior door glass 23 set gradually and form visual passageway from the extroversion, and the user both can observe 3 residual water volumes in water tank through visual passageway, ensures that the steam generation subassembly normal operating, can also observe through visual passageway and eat the material condition in the culinary art chamber 11, promotes the culinary art quality.

In this embodiment, the door panel assembly 2 includes an inner door frame 24, the inner door frame 24 is fixedly connected to the outer door frame 21 and clamps the inner door glass 23, and a bottom edge of the inner door frame 24 is connected to a bottom edge of the opening through a hinge. The bottom edge of inner frame 24 is pivotally connected to the open bottom edge by a hinge to allow door panel assembly 2 to be pivotally switched between an opening station and a closing station. When the door panel assembly 2 is in the opening station, the top edge of the door panel assembly 2 is always higher than the bottom edge thereof, so that the water inlet 32 of the water tank 3 is always higher than the water outlet 31 thereof. Outer door frame 21 and inner door frame 24 are fixedly secured to clamp inner door glass 23 by fasteners.

In this embodiment, a heat insulation gap 25 is provided between the water tank 3 and the inner door glass 23, the thickness of the heat insulation gap 25 is a (as shown in fig. 4), and a =5mm, so that the safety of the water tank 3 is ensured, the water tank 3 is prevented from being softened and deformed due to being too close to the inner door glass 23, the water tank 3 is ensured to have a large capacity, and the water consumption required by normal use is met.

In this embodiment, the steam oven is provided with an exposed water shortage warning lamp for warning a user when the water tank is in a water shortage state.

It can be understood that, the conduit 4 may also be a split structure, and includes a movable pipe connected to the water outlet 31 and a fixed pipe connected to the water pump, the movable pipe and the fixed pipe are sealed and inserted, and when the door panel assembly 2 swings and opens with the hinge as the center, the outer connecting end of the movable pipe rotates with the hinge as the center in the outer connecting end of the fixed pipe.

It is understood that the parameter A can also be 3mm, 4mm, 6mm, 8mm, etc., as long as the requirement that A is less than or equal to 3mm and less than or equal to 8mm is met.

It can be understood that the outer door frame 21 can also be a plate-shaped structure, the middle part of the outer door frame 21 is recessed outwards to form the assembly cavity, and the water tank 3 is embedded in the assembly cavity to effectively prevent the heat in the cooking cavity 11 from being lost outwards.

It can be understood that, the door panel assembly 2 can also be a structure including an outer door frame 21 and an outer door glass 22, the outer door frame 21 and the outer door glass 22 enclose to form an assembly cavity, the water tank 3 is installed in the assembly cavity, after the water tank is installed in place, the assembly cavity is communicated with the cooking cavity 11, and the bottom edge of the outer door frame 21 is connected to the bottom edge of the opening through a hinge.

The rest of the structure and effect of the steam oven described in this embodiment are all consistent with the embodiments, and are not described again.

Claims (10)

1. The utility model provides a steam oven that processing cost is low, includes casing and steam generation subassembly, be equipped with the culinary art chamber in the casing, set up the uncovered that leads to with the external world on the preceding wall in culinary art chamber, be equipped with the door plant subassembly on uncovered, the door plant subassembly can swing ground through the hinge and cover and close uncovered, the steam generation subassembly includes water tank, water pump and steam generator, and water source forms the steam of input culinary art chamber through steam generator in the water pump extraction water tank, a serial communication port, be equipped with the assembly chamber in the door plant subassembly, the water tank sets up the assembly intracavity.

2. The steam oven of claim 1, wherein the water pump is disposed in a housing, and the bottom of the water tank is provided with a water outlet, and the water outlet is connected to the water pump through a conduit.

3. The steam oven of claim 2, wherein the conduit is a flexible hose, one end of the flexible hose is connected to the water outlet, and the other end of the flexible hose is connected to the water pump after sequentially passing through the bottom of the door panel assembly and the housing.

4. The steam oven of claim 2, wherein the door assembly is pivotally coupled to the opening by a hinge, the duct includes a movable tube connected to the water outlet and a fixed tube connected to the water pump, the movable tube and the fixed tube are sealingly coupled, and when the door assembly is pivotally coupled to the door assembly about the hinge, the outer end of the movable tube rotates about the hinge within the outer end of the fixed tube.

5. The steam oven of claim 1, wherein a water inlet exposed to the door panel assembly is formed at a top of the water tank, and a check valve is formed at the water inlet, through which external water flows into the water tank.

6. The low-cost-to-machine steam oven of any one of claims 1-5, wherein said door panel assembly comprises an outer door frame, said assembly cavity being disposed within said outer door frame.

7. The steam oven of claim 6, wherein the door panel assembly comprises an outer door glass and an inner door glass, the outer door frame is provided with a through hole, and the outer door glass and the inner door glass respectively block the port of the through hole and enclose to form the assembly cavity.

8. The low-cost steam oven of claim 7, wherein the water tank is a transparent box body, and the outer door glass, the water tank and the inner door glass are arranged in sequence from outside to inside to form a visual channel; or the outer door glass completely covers the front end face of the outer door frame, the inner door glass is fixedly connected to the rear end face of the outer door frame, and the outer door frame, the outer door glass and the inner door glass enclose to form the assembly cavity; or the door plate component comprises an inner door frame, the inner door frame is fixedly connected with the outer door frame and clamps the inner door glass, and the bottom edge of the inner door frame is connected to the bottom edge of the opening through a hinge.

9. The steam oven of claim 7, wherein a heat insulation gap is formed between the water tank and the inner door glass, the thickness of the heat insulation gap is A, and A is larger than or equal to 3mm and smaller than or equal to 8 mm.

10. The low-cost steam oven of claim 6, wherein said outer door frame is recessed outwardly at a central portion thereof to form said assembly cavity.

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