CN115067737B - Steam oven - Google Patents

Abstract

The present invention provides a steam oven, comprising: an oven cavity, a heat dissipation fan and a condensation pressure relief pipe; a pressure relief port is arranged on the oven cavity; the heat dissipation fan is arranged at the top of the oven cavity, and a heat dissipation duct is connected to one side of the heat dissipation fan; the condensation pressure relief pipe is arranged in the heat dissipation duct, and the condensation pressure relief pipe is connected to the pressure relief port through a connecting pipe, and the condensation pressure relief pipe is a spiral pipe, and a part of the airflow flowing into the condensation pressure relief pipe from the pressure relief port is condensed and refluxed in the condensation pressure relief pipe after being dissipated and cooled by the heat dissipation fan, and the other part of the airflow is discharged from the top of the condensation pressure relief pipe. By setting the condensation pressure relief pipe as a spiral pipe, the length of water vapor passing through is increased, and sufficient condensation is achieved, and the cooling capacity of the heat dissipation fan of the steam oven itself is used to condense water vapor, and the condensed water is collected in the oven cavity by the original route, without the need to set a separate condensation cavity and condensation water collection structure.

Description

Steam oven

Technical Field

The invention relates to the technical field of household appliances, and in particular to a steam oven.

Background Art

With the development of people's economic level, more and more household appliances are used in ordinary families. As a commonly used kitchen appliance, steam ovens are becoming more and more popular. However, existing steam ovens usually have some problems in pressure relief. For example, insufficient pressure relief leads to whistling at the door body, the steam at the pressure relief port only relies on natural cooling and condensation, and the temperature of the sheet metal will rise during the use of the steam oven, resulting in a decrease in the condensation effect. In addition, some steam ovens directly discharge steam into the oven air duct for cooling and condensation, resulting in a large area of condensed water in the air duct, which is difficult to collect. The condensed water that cannot be collected will corrode the sheet metal.

Summary of the invention

The present invention solves one of the technical problems in the related art at least to a certain extent.

To this end, the present application aims to provide a steam oven, in which a condensation pressure relief pipe connected to a pressure relief port of an oven cavity is arranged in the heat dissipation duct of the steam oven, the condensation pressure relief pipe is arranged as a spiral structure, the air inlet end of the condensation pressure relief pipe is connected to the pressure relief port through a connecting pipe, and the heat dissipation fan of the steam oven is used to dissipate heat and cool a part of the airflow entering the condensation pressure relief pipe from the pressure relief port, and the condensed condensed water flows back from the pressure relief port into the oven cavity, and the excess uncondensed airflow flows along the spiral structure into the pressure relief end position, and is discharged into the heat dissipation duct from the pressure relief hole arranged on at least a part of the pressure relief end, and finally discharged from the box of the steam oven under the action of the heat dissipation fan, and the condensation pressure relief pipe is arranged as a spiral pipe, which increases the length of the airflow passing through and realizes sufficient condensation. The cooling capacity of the heat dissipation fan of the steam oven itself is used to condense the water vapor, and the condensed water is collected in the oven cavity by the original route, without the need to set up a separate condensation cavity and condensation water collection structure.

The steam oven according to the present application includes: an oven cavity, a heat dissipation fan and a condensation pressure relief pipe; a pressure relief port is arranged on the oven cavity; the heat dissipation fan is arranged at the top of the oven cavity, and a heat dissipation air duct is connected to one side of the heat dissipation fan; the condensation pressure relief pipe is arranged in the heat dissipation air duct, and the condensation pressure relief pipe is connected to the pressure relief port through a connecting pipe, and the condensation pressure relief pipe is a spiral pipe, and a part of the airflow flowing into the condensation pressure relief pipe from the pressure relief port is condensed and refluxed in the condensation pressure relief pipe after being dissipated and cooled by the heat dissipation fan, and the other part of the airflow is discharged from the end position of the condensation pressure relief pipe.

The present application provides a condensation pressure relief pipe in the heat dissipation duct of the steam oven, and the steam oven is provided with an oven cavity. The condensation pressure relief pipe is connected to the pressure relief port of the oven cavity, and the condensation pressure relief pipe includes an air inlet end and a pressure relief end. The condensation pressure relief pipe is a spiral pipe. The heat dissipation fan condenses a part of the airflow entering the condensation pressure relief pipe to dissipate heat and cool down, and the condensed water flows back from the pressure relief port to the oven cavity along the condensation pressure relief pipe, and the excess uncondensed airflow flows into the pressure relief end, and is discharged from the pressure relief hole near the pressure relief end into the heat dissipation duct, and is blown out from the air outlet of the heat dissipation duct through the heat dissipation fan. The condensation pressure relief pipe is set as a spiral pipe, and the length of the airflow passing through the condensation pressure relief pipe is lengthened. Under the action of the heat dissipation fan, sufficient condensation is achieved, and the air inlet end of the condensation pressure relief pipe is tilted toward the bottom wall of the heat dissipation duct, so as to facilitate the separation of the uncondensed airflow and the condensed water, and facilitate the condensed water to flow back to the oven cavity. The cooling capacity of the heat dissipation fan of the steam oven itself is used to condense the water vapor, and the condensed water is collected in the oven cavity by the original path, without the need to set up a separate condensation cavity and condensed water collection structure.

In some embodiments of the present application, the condensation pressure relief pipe includes an air inlet end and a pressure relief end located at the end, an air inlet is formed at the air inlet end, and the air inlet end is connected to the connecting pipe.

In some embodiments of the present application, the airflow includes a first airflow and a second airflow, and the first airflow is condensed in the condensation section and flows back into the oven cavity along the connecting pipe.

In some embodiments of the present application, a plurality of pressure relief holes are provided on at least a portion of the condensation pressure relief pipe close to the pressure relief end, and the second air flow is discharged from the pressure relief holes.

In some embodiments of the present application, the position of the pressure relief end in the heat dissipation duct is higher than the position of the air inlet end in the heat dissipation duct.

In some embodiments of the present application, the cross-section of the pressure relief condenser may be circular.

In some embodiments of the present application, a heat sink is provided on the outside of the condensation pressure relief pipe.

In some embodiments of the present application, the heat dissipation duct includes a bottom wall, and the air outlet end is inclined toward a direction close to the bottom wall.

In some embodiments of the present application, a heat dissipation space is provided on the top of the oven cavity, and a heat dissipation fan and a heat dissipation air duct are provided in the heat dissipation space.

In some embodiments of the present application, the pressure relief end is set as a blind end.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic structural diagram of a steam oven in an embodiment of the present application;

FIG2 is a schematic diagram of the internal structure of a steam oven in an embodiment of the present application;

FIG3 is an exploded schematic diagram of the internal structure of the steam oven in an embodiment of the present application;

FIG4 is a schematic structural diagram of a heat dissipation fan of a steam oven in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a heat dissipation fan of a steam oven connected to a heat dissipation air duct in an embodiment of the present application;

FIG6 is a structural schematic diagram 1 of a condensation pressure relief pipe of a steam oven in an embodiment of the present application;

FIG. 7 is a structural schematic diagram 2 of a condensation pressure relief pipe of a steam oven in an embodiment of the present application;

FIG8 is a structural schematic diagram 3 of a condensation pressure relief pipe of a steam oven in an embodiment of the present application;

FIG9 is an enlarged structural view of a steam oven at position A in an embodiment of the present application;

FIG10 is a cross-sectional view of a steam oven in which a condensation pressure relief pipe is disposed in a heat dissipation duct in an embodiment of the present application;

In the above figures: oven cavity 1; heat dissipation fan 2; exhaust port 21; air intake side 22; condensation pressure relief pipe 3; air inlet end 31; pressure relief end 32; pressure relief hole 33; heat dissipation duct 4; heat dissipation duct shell 41; air inlet 42; air outlet 43; box body 5; liner 51; heat dissipation space 52; heat dissipation hole 53; heat insulation board 54.

DETAILED DESCRIPTION

The present invention is described in detail below by way of the embodiments of the present invention. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

A steam oven is an electrical appliance that can steam and bake food. The steam oven includes a housing, a steam-bake inner tank, a water tank, a heating device, and a steam generator. The steam-bake inner tank, the heating device, the water tank, and the steam generator are all arranged in the housing. The heating device can heat the steam-bake inner tank.

When food needs to be baked, the food needs to be placed in the steam-bake inner pot, and the heating device heats the steam-bake inner pot, so that the food can be baked.

When food needs to be steamed, the food is placed in the steam-bake inner pot, and the steam generator is controlled to convert water in the water tank into high-temperature air, which is then passed into the steam-bake inner pot to steam the food in the steam-bake inner pot.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of the structure of a steam oven in an embodiment of the present application, FIG. 2 is a schematic diagram of the internal structure of the steam oven in an embodiment of the present application, and FIG. 3 is a schematic diagram of the decomposed internal structure of the steam oven in an embodiment of the present application.

1-3, the steam oven provided in the present application includes: an oven cavity 1, a heat dissipation fan 2 and a condensation pressure relief pipe 3; a pressure relief port is provided on the oven cavity 1; the heat dissipation fan 2 is provided at the top of the oven cavity 1, and a heat dissipation air duct 4 is connected to one side of the heat dissipation fan 2; the condensation pressure relief pipe 3 is provided in the heat dissipation air duct 4, and the condensation pressure relief pipe 3 is connected to the pressure relief port through a connecting pipe, and the condensation pressure relief pipe 3 is a spiral pipe, and a part of the airflow flowing into the condensation pressure relief pipe 3 from the pressure relief port is condensed and refluxed in the condensation pressure relief pipe 3 after being dissipated and cooled by the heat dissipation fan 2, and the other part of the airflow is discharged from the top of the condensation pressure relief pipe 3.

The steam oven includes a box body 5 and an inner tank 51 disposed inside the box body 5. The box body 5 is provided with heat dissipation holes 53 and an air inlet. The front side of the box body 5 is the side facing the user when the steam oven is in use. The heat dissipation holes 53 can be formed on the front side of the box body 5, and the air inlet can be formed on the rear side of the box body 5. The air inlet can serve as an inlet for air to enter the box body 5, and the heat dissipation holes 53 serve as an outlet for air to flow out. The air enters the box body 5 from the air inlet, and then flows out of the box body 5 from the heat dissipation holes 53.

The heat dissipation hole 53 may be in a long strip shape and disposed transversely on the front side of the box body 5 . There may be two heat dissipation holes 53 disposed alternately on the left and right sides of the front side of the box body 5 .

The box body 5 includes a door frame and a box door located on the front side of the steam oven, and a rear plate located on the rear side of the steam oven. The box body 5 also includes a top plate, a bottom plate, and left and right side plates. The left and right side plates are respectively connected between the box door and the rear plate. The top plate is connected to the upper ends of the left and right side plates, and the bottom plate is connected to the lower ends of the left and right side plates.

The top plate, the bottom plate, the left and right side plates and the rear plate are connected to each other to form a box-shaped structure with an opening.

The inner pot 51 is located inside the box body 5 , and the inner pot 51 forms a semi-enclosed oven cavity 1 inside the box body 5 , and has a box-shaped structure corresponding to the box body 5 , and the opening of the oven cavity 1 corresponds to the opening of the box body 5 .

The door frame is fixedly connected between the inner tank 51 and the box body 5 to form a part of the sealing surface at the opening of the box body 5. The box door is generally pivotally connected to the door frame to open and close the opening of the oven cavity 1.

A heat dissipation space 52 located at the top of the oven cavity 1 is formed between the oven cavity 1 and the box body 5, and an exhaust heat dissipation device is arranged in the heat dissipation space 52.

The exhaust heat dissipation device includes a heat dissipation duct 4 with air inlet and outlet 43 and a heat dissipation fan 2 arranged at the air inlet 42. The heat dissipation fan 2 plays a role in increasing the flow rate of the air flow in the heat dissipation duct 4 on the one hand, and plays a role in cooling on the other hand.

The heat dissipation fan 2 and the heat dissipation duct 4 are both arranged at the top of the oven cavity 1, and a heat dissipation hole 53 is provided on the oven door. The air outlet 43 of the heat dissipation duct 4 is connected with the heat dissipation hole 53, and the air flow flowing through the heat dissipation duct 4 is blown out of the oven body 5 from the heat dissipation hole 53 due to the negative pressure of the heat dissipation fan 2.

4 is a schematic diagram of the structure of the heat dissipation fan of the steam oven in the embodiment of the present application, and FIG. 5 is a schematic diagram of the structure of the heat dissipation fan of the steam oven connected to the heat dissipation air duct in the embodiment of the present application.

4-5 , a heat dissipation space 52 is formed between the top of the oven cavity 1 and the box body 5 in the steam oven, and a heat dissipation fan 2 and a heat dissipation air duct 4 are arranged in the heat dissipation space 52 .

An exhaust port 21 is provided on the heat dissipation fan 2, and an air inlet 42 and an air outlet 43 are provided on the heat dissipation air duct 4. The air inlet 42 of the heat dissipation air duct 4 is connected with the exhaust port 21 of the heat dissipation fan 2. The operation of the heat dissipation fan 2 can drive the air flow in the heat dissipation air duct 4, thereby achieving the purpose of heat dissipation.

The steam oven is provided with an air inlet, which is formed on the rear plate of the box body 5 and is located on the suction side 22 of the heat dissipation fan 2. When the heat dissipation fan 2 is in operation, cold air from the external environment can enter the interior of the steam oven through the air inlet and flow to the suction side 22 of the heat dissipation fan 2.

When the heat dissipation fan 2 is working, negative pressure is formed through the power output of the heat dissipation fan 2 to suck the cold air outside the steam oven into the heat dissipation space 52, and flows in the heat dissipation space 52 to the suction side 22 of the heat dissipation fan 2, and driven by the heat dissipation fan 2, flows through the heat dissipation air duct 4, and finally blows out of the steam oven through the heat dissipation holes 53.

The heat dissipation duct 4 is covered on the upper surface of the inner pot 51 and is connected with the inner pot 51 through the upper surface. The steam oven includes a heat insulation board 54, and the heat insulation board 54 is fixed to the outer wall of the top of the oven cavity 1. The heat dissipation duct 4 includes a heat dissipation duct shell 41, and the heat dissipation duct shell 41 is buckled on the heat insulation board 54. The outer periphery of the bottom of the heat dissipation duct 4 is provided with a connecting structure, which is connected to the heat insulation board 54 through fixing screws passing through the connecting structure. The heat dissipation duct shell 41 and the heat insulation board 54 surround the above-mentioned heat dissipation duct 4; the heat dissipation duct 4 includes an air inlet end and an air outlet end formed at the air inlet 42 and the air outlet 43. The air inlet end is arranged toward the rear side of the steam oven, corresponding to the heat dissipation fan 2, and the air outlet end is arranged toward the front side of the steam oven, corresponding to the heat dissipation hole 53 on the box 5 of the steam oven.

A detachable heat dissipation duct housing 41 is provided to prevent condensation of the pressure relief pipe 3 and/or electrical components in the heat dissipation duct 4 during assembly.

The air inlet end is connected to the heat dissipation fan 2, and the heat dissipation fan 2 can deliver cold air to the heat dissipation duct 4 through the air inlet end; the heat dissipation fan 2 is set at the air inlet end, and the heat dissipation fan 2 delivers cold air into the heat dissipation duct 4, dissipates part of the water vapor and cools it down, and then delivers another part of the excess hot air to the air supply end.

The heat dissipation duct 4 includes two heat dissipation duct side walls which are spaced apart from each other, a top wall located at the top of the heat dissipation duct housing 41 , and a bottom wall located on the upper surface of the heat insulation board 54 .

Figure 6 is a structural schematic diagram 1 of the condensation pressure relief pipe of the steamer oven in the implementation manner of the present application, Figure 7 is a structural schematic diagram 2 of the condensation pressure relief pipe of the steamer oven in the implementation manner of the present application, Figure 8 is a structural schematic diagram 3 of the condensation pressure relief pipe of the steamer oven in the implementation manner of the present application, Figure 9 is an enlarged structural diagram of point A of the steamer oven in the implementation manner of the present application, and Figure 10 is a cross-sectional view of the condensation pressure relief pipe of the steamer oven in the implementation manner of the present application arranged in the heat dissipation air duct.

Referring to Figures 6-10, a condensation pressure relief pipe 3 is provided in the heat dissipation air duct 4, and the condensation pressure relief pipe 3 is connected to the pressure relief port through a connecting pipe. The airflow overflowing from the pressure relief port of the oven cavity 1 enters the condensation pressure relief pipe 3, and the heat dissipation fan 2 transports cold air to the heat dissipation air duct 4 from the exhaust port 21, dissipates heat and cools down a part of the airflow in the condensation pressure relief pipe 3, so that it condenses and flows back into the oven cavity 1.

In this embodiment, water vapor is used as the gas flow.

The condensation pressure relief pipe 3 includes an air inlet end 31 and a pressure relief end 32. An air inlet is formed at the air inlet end 31. The air inlet end 31 is connected to the connecting pipe. One end of the connecting pipe is connected to the pressure relief port. The condensation pressure relief pipe 3 is configured as a spiral tube. The spiral tube increases the flow of water vapor. The water vapor flowing into the condensation pressure relief pipe 3 from the pressure relief port is fully condensed in the condensation pressure relief pipe 3 under the action of the heat dissipation fan 2.

In this embodiment, the cavity air outlet pipe is used as the connecting pipe.

The condensation pressure relief pipe 3 is connected to one end of the pressure relief port, that is, the air inlet end 31 is inclined toward the bottom wall of the heat dissipation duct 4, and the horizontal position of the air inlet end 31 is lower than the horizontal position of the pressure relief end 32. The horizontal position of the air inlet end 31 is set lower than the horizontal position of the pressure relief end 32, which is conducive to the separation of uncondensed water vapor and condensed water, and the reflux of condensed water.

The pressure relief end 32 is set as a blind end, and a plurality of pressure relief holes 33 are opened on the condensation pressure relief pipe 3 at least partially near the pressure relief end 32. After a portion of the water vapor flowing into the condensation pressure relief pipe 3 from the pressure relief port is cooled and condensed at the position of the condensation pressure relief pipe 3 near the air inlet end 31, the remaining uncondensed water vapor flows upward into the pressure relief end 32 and flows out from the pressure relief holes 33 into the heat dissipation duct 4.

The condensation pressure relief pipe 3 is arranged close to the heat dissipation fan 2. The heat dissipation fan 2 can dissipate heat and cool the water vapor in the condensation pressure relief pipe 3 to form condensed water. The water vapor discharged from the oven cavity 1 flows into the condensation pressure relief pipe 3 from the air inlet end 31 through the cavity air outlet pipe. The water vapor flowing into the condensation pressure relief pipe 3 continuously hits the outside of the bend of the spiral structure and condenses in the condensation pressure relief pipe 3. The small water droplets generated thereby settle partially due to their own gravity. When the remaining water vapor enters the pressure relief end 32, the small water droplets are forced to settle at the bend due to inertia. The small water droplets here are condensed water and flow out along the condensation pressure relief pipe 3 to the end close to the air inlet end 31. The generated condensed water can flow back to the oven cavity 1 along the cavity air outlet pipe, and be collected or discharged from the oven cavity 1 together with the condensed water in the oven cavity 1.

Specifically, the air inlet end 31 of the condensation pressure relief pipe 3 is connected to the pressure relief port through the cavity air outlet pipe, and the pressure relief end 32 of the condensation pressure relief pipe 3 spirals upward and extends in a direction away from the bottom wall of the heat dissipation air duct 4. The water vapor flowing out of the pressure relief port enters the condensation pressure relief pipe 3, and a part of the water vapor is collected in the condensation pressure relief pipe 3 and flows back to the oven cavity 1 along the cavity air outlet pipe after being dissipated and cooled by the heat dissipation fan 2. The other part of the uncondensed water vapor flows into the position close to the pressure relief end 32, and is discharged from the pressure relief hole 33 into the heat dissipation air duct 4. Under the action of the negative pressure generated by the heat dissipation fan 2, the heat dissipation fan 2 blows out in the direction of the air outlet 43 of the heat dissipation air duct 4. The multiple pressure relief holes 33 opened on the condensation pressure relief pipe 3 can discharge the remaining water vapor from the pressure relief hole 33 as soon as possible under the action of the negative pressure generated by the heat dissipation fan 2, and be taken away by the heat dissipation fan 2.

The airflow includes a first airflow and a second airflow. After the first airflow is condensed in the condensation pressure relief pipe 3, it flows back into the oven cavity 1 from the pressure relief port along the cavity air outlet pipe.

A plurality of pressure relief holes 33 are provided on the pressure relief section, and the second airflow flows out from the pressure relief holes 33 into the heat dissipation duct 4 , and is blown out from the air outlet 43 of the heat dissipation duct 4 by the heat dissipation fan 2 .

In this embodiment, the cross-section of the condensation pressure relief pipe 3 is circular, but not limited thereto. In other embodiments, the cross-section of the condensation pressure relief pipe 3 may also be other shapes such as an ellipse or a square.

A heat sink with a heat dissipation function can be provided outside the condensation section to increase the condensation effect.

The interior of the condensation section may be one passage or multiple passages. In this embodiment, the interior of the condensation section is one passage.

The condensation pressure relief pipe 3 can be arranged in the heat dissipation air duct 4 in a manner perpendicular to the blowing direction of the heat dissipation fan 2 or in parallel to the blowing direction of the heat dissipation fan 2, but the horizontal position of the air inlet end 31 must be lower than the horizontal position of the pressure relief end 32 to facilitate the condensation and reflux of water vapor. In this embodiment, the condensation pressure relief pipe 3 is arranged in the heat dissipation air duct 4 in a manner perpendicular to the blowing direction of the heat dissipation fan 2.

The number of the pressure relief holes 33 is 2-20. In this embodiment, the number of the pressure relief holes 33 is 5.

Since the condensation pressure relief pipe 3 is set as a spiral pipe, the length of the water vapor passing through is increased, thereby playing a role in cooling the water vapor. Under the action of the above-mentioned condensation pressure relief pipe 3, the water vapor in the above-mentioned condensation pressure relief pipe 3 continuously hits the turning surface of the spiral pipe to be fully condensed. The condensed water condensed in the condensation pressure relief pipe 3 flows back to the oven cavity 1 through the cavity outlet pipe, which is convenient for cleaning after steaming and baking. After starting the heat dissipation fan 2, the uncooled water vapor flows into the pressure relief end 32, and is discharged from the pressure relief hole 33 set at the position close to the pressure relief end 32 into the heat dissipation duct 4, and then blown to the outlet 43 of the heat dissipation duct 4 through the heat dissipation fan 2, and finally discharged from the heat dissipation hole 53 set on the front side of the box 5.

In summary, the present application is provided with a condensation pressure relief pipe in the heat dissipation duct of the steam oven, an oven cavity is provided in the steam oven, the condensation pressure relief pipe is connected to the pressure relief port of the oven cavity, the condensation pressure relief pipe includes an air inlet end and a pressure relief end, the condensation pressure relief pipe is a spiral pipe, the heat dissipation fan condenses a part of the airflow entering the condensation pressure relief pipe for heat dissipation and cooling, and the condensed water flows back from the pressure relief port to the oven cavity along the condensation pressure relief pipe, and the excess uncondensed airflow flows into the pressure relief end, is discharged from the pressure relief hole near the pressure relief end into the heat dissipation duct, and is blown out from the air outlet of the heat dissipation duct through the heat dissipation fan. The condensation pressure relief pipe is set as a spiral pipe, the length of the airflow passing through the condensation pressure relief pipe is lengthened, and sufficient condensation is achieved under the action of the heat dissipation fan, and the air inlet end of the condensation pressure relief pipe is tilted toward the bottom wall of the heat dissipation duct, which is convenient for separating the uncondensed airflow and the condensed water, and is conducive to the condensed water flowing back to the oven cavity. The cooling capacity of the heat dissipation fan of the steam oven itself is used to condense the water vapor, and the condensed water is collected in the oven cavity by the original path, without the need to set up a separate condensation cavity and condensed water collection structure.

In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “front”, “rear”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

The terms "first" and "second" are used for descriptive purposes only and should not 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 the features.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims (8)

1. A steam oven, characterized by comprising: An oven cavity, wherein a pressure relief port is provided on the oven cavity; A heat dissipation fan is arranged at the top of the oven cavity, and a heat dissipation duct is connected to one side of the heat dissipation fan; an air outlet is arranged on the heat dissipation fan; an air inlet and an air outlet are arranged on the heat dissipation duct; the air inlet of the heat dissipation duct is connected to the air outlet of the heat dissipation fan; the heat dissipation duct includes a bottom wall; A condensation pressure relief pipe is arranged in the heat dissipation air duct, the condensation pressure relief pipe is connected to the pressure relief port through a connecting pipe, and the condensation pressure relief pipe is a spiral pipe; The condensation pressure relief pipe comprises an air inlet end and a pressure relief end at the end; The air inlet end is inclined toward the bottom wall, and the horizontal position of the air inlet end is lower than the horizontal position of the pressure relief end; the pressure relief end of the condensation pressure relief pipe spirals upward and extends in the direction away from the bottom wall of the heat dissipation duct, and water vapor continuously hits the turning surface of the spiral pipe in the condensation pressure relief pipe to be fully condensed; a plurality of pressure relief holes are opened on at least a portion of the condensation pressure relief pipe close to the pressure relief end; the pressure relief end is set as a blind end; A part of the airflow flowing into the condensation pressure relief pipe from the pressure relief port is condensed in the condensation pressure relief pipe and flows back into the oven cavity after being dissipated and cooled by the heat dissipation fan, and another part of the airflow is discharged from the pressure relief hole at the end position of the condensation pressure relief pipe into the heat dissipation air duct, and then blown to the air outlet of the heat dissipation air duct by the heat dissipation fan, and finally discharged from the heat dissipation holes arranged on the front side of the box body. 2. The steam oven according to claim 1, characterized in that an air inlet is formed at the air inlet end, and the air inlet end is connected to the connecting pipe. 3. The steam oven according to claim 2, characterized in that the airflow comprises a first airflow and a second airflow, the first airflow condenses in the condensation section and flows back into the oven cavity along the connecting pipe. 4 . The steam oven according to claim 3 , wherein the second airflow is discharged from the pressure relief hole. 5 . The steam oven according to claim 2 , wherein a position of the pressure relief end in the heat dissipation duct is higher than a position of the air inlet end in the heat dissipation duct. 6. The steam oven according to claim 1, characterized in that the cross-section of the pressure relief condenser tube can be circular. 7. The steam oven according to claim 1, characterized in that a heat sink is provided on the outside of the condensation pressure relief pipe. 8. The steam oven according to claim 1, characterized in that a heat dissipation space is provided on the top of the oven cavity, and the heat dissipation fan and the heat dissipation air duct are provided in the heat dissipation space.