CN217744071U

CN217744071U - External circulation air duct air furnace oven

Info

Publication number: CN217744071U
Application number: CN202221341491.2U
Authority: CN
Inventors: 何顺伟; 曹细加
Original assignee: Guangdong Westa Electrical Appliances & Technology Co ltd
Current assignee: Guangdong Westa Electrical Appliances & Technology Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-08
Anticipated expiration: 2032-05-30

Abstract

The utility model provides an extrinsic cycle wind channel wind stove oven belongs to oven technical field, and this oven includes casing, inner bag and extrinsic cycle wind channel, and the casing setting is provided with the extrinsic cycle wind channel between casing and the inner bag in the inner bag periphery. The outer circulation air duct comprises a fan cover and a fan, the fan cover is fixed on the side wall of the inner container, an air cavity is formed between the fan cover and the side wall of the inner container, a first heating wire is arranged in the air cavity, and a plurality of air guide holes communicated with the inside of the inner container are formed in the air cavity. The fan sets up in the wind chamber, and the fan operation for gas in the wind chamber passes the wind-guiding hole and gets into inside the inner bag. The air furnace oven has high heat efficiency, can heat food quickly and uniformly, has small volume and can not cause space waste.

Description

External circulation air duct air furnace oven

Technical Field

The utility model relates to an oven technical field especially relates to an outer circulation wind channel wind stove oven.

Background

An oven is a sealed electric appliance for baking food or drying products, and is classified into a home electric appliance and an industrial oven. The household electric oven is an electric heating appliance for baking food by utilizing radiation heat emitted by an electric heating element, and can be used for making roast chicken, roast duck, roast bread, cakes and the like. The temperature of the electric oven can be adjusted within the range of 50-250 ℃ according to different needs of the baked food.

In the existing oven, in order to improve the baking efficiency of food, a fan is additionally arranged at the top of the oven, and hot air is blown into an inner container of the oven by the fan. The heat energy in the inner container of the oven is uniformly distributed, so that food can be uniformly heated and quickly cooked. However, since the volume of the fan is generally large, installing the fan on the top increases the height of the oven, so that the volume of the oven becomes large. The space required by the oven with large volume is also increased, which causes the waste of space and is not beneficial to improving the competitiveness of the oven in the market.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the correlation technique, the utility model aims at providing an outer circulation wind channel wind stove oven, this wind stove oven thermal efficiency is high, can heat food fast evenly, and is small moreover, can not cause the waste in space.

An external circulation air duct air furnace oven comprises a machine shell, an inner container and an external circulation air duct;

the shell is arranged on the periphery of the inner container, and the external circulation air duct is arranged between the shell and the inner container;

the external circulation air duct comprises a fan cover and a fan, the fan cover is fixed on the side wall of the inner container, an air cavity is formed between the fan cover and the side wall of the inner container, a first heating wire is arranged in the air cavity, and a plurality of air guide holes communicated with the air cavity are formed in the side wall of the inner container; the fan is arranged in the air cavity, and when the fan operates, air in the air cavity penetrates through the air guide holes to enter the inner container.

In the preferred technical scheme of the utility model, the bottom of the air cavity is open, and the fan is arranged at the bottom of the air cavity; the fan is a cross-flow fan, when the fan operates, airflow enters the air cavity in a flow direction parallel to the side wall of the liner, and the airflow in the air cavity enters the liner in a flow direction parallel to the bottom wall of the liner.

The utility model discloses in the technical scheme of preferred, first heater strip is in set up a plurality of in the wind chamber, and a plurality of first heater strip all with the inner bag bottom is parallel.

The utility model discloses in the technical scheme of preferred, be equipped with a plurality of wind-guiding groove on the inner bag lateral wall, just the length direction in wind-guiding groove with the length direction of first heater strip is the same, the wind-guiding groove by the inner bag lateral wall to the inner bag is inside sunken, a plurality of the wind-guiding groove is followed the direction of height of inner bag is parallel to be set up on the inner bag lateral wall.

The utility model discloses in the technical scheme of preferred, every all be equipped with a plurality of in the wind-guiding groove wind-guiding hole, and a plurality of the wind-guiding hole is in set up the in-line in the wind-guiding groove.

In a preferred technical solution of the present invention, each of the first heating wires corresponds to one of the air guiding holes in one of the air guiding grooves; and the axis of the first heating wire is parallel to the plane of the air guide hole.

The utility model discloses in the technical scheme of preferred, the cross section of wind-guiding groove is trapezoidal, just the wind-guiding groove is kept away from the width of the inside one side of inner bag is greater than and is close to the width of the inside one side of inner bag.

The utility model discloses in the technical scheme of preferred, the inside second heater strip that is equipped with of inner bag, the second heater strip is in the inner bag is inside to be set up two rows, two rows the second heater strip is close to respectively the inner bag roof the inner bag diapire sets up.

In the preferred embodiment of the present invention, the bottom and the side walls of the casing are respectively provided with a plurality of air inlets.

The utility model discloses in the technical scheme of preferred, casing one side is equipped with the door plant, the door plant below is equipped with the control key.

The beneficial effects of the utility model are that:

the utility model provides a pair of extrinsic cycle wind channel wind stove oven, this oven include casing, inner bag and extrinsic cycle wind channel, and the casing setting is provided with the extrinsic cycle wind channel between casing and the inner bag in the inner bag periphery. The outer circulation air duct comprises a fan cover and a fan, an air cavity is formed between the fan cover and the side wall of the inner container, a first heating wire is arranged in the air cavity, and the first heating wire plays a role in heating air in the air cavity. When the fan operates, high-temperature air in the air cavity enters the inner container through the air guide holes to heat food. The high-temperature air in the air cavity has enough oxygen content, and the flowing air enables the thermal field in the inner container to be uniform, so that the food can be heated quickly and effectively, and the color of the heated food is uniform and beautiful. The oven avoids the defect that the fan is arranged at the top of the oven in the prior art, and achieves the purposes of improving the thermal efficiency of the oven and reducing the volume of the oven by arranging the external circulation air duct.

Drawings

Fig. 1 is a perspective view of an external circulation duct air oven provided by the present invention;

fig. 2 is a schematic structural view of a cross section of the interior of the external circulation duct air furnace oven provided by the present invention;

fig. 3 is a schematic structural diagram of the arrangement position of the external circulation air duct of the air oven provided by the present invention;

fig. 4 is a schematic structural view of the external circulation air duct of the air oven provided by the present invention without including the fan cover;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

fig. 6 is a schematic structural view of the inner container of the external circulation air duct air furnace oven provided by the utility model;

fig. 7 is a schematic view of the structure of the matching between the fan cover and the inner container;

fig. 8 is a schematic view of the air flow of the external circulation duct air furnace oven provided by the present invention when in use.

Reference numerals:

100. a housing; 110. a door panel; 120. a control key; 130. an air inlet; 200. an inner container; 210. a second heating wire; 220. a wind guide groove; 230. an air guide hole; 300. an external circulation air duct; 310. a fan housing; 320. a fan; 330. a first heater wire; 340. and a wind cavity.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, a first message may also be referred to as a second message, and similarly, a second message may also be referred to as a first message, without departing from the scope of the invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1-7, the present invention provides an external circulation air duct oven, which comprises a casing 100, an inner container 200 and an external circulation air duct 300.

The casing 100 is disposed at the periphery of the inner container 200, and the external circulation air duct 300 is disposed between the casing 100 and the inner container 200.

The external circulation air duct 300 comprises a fan housing 310 and a fan 320, the fan housing 310 is fixed on the side wall of the inner container 200, an air cavity 340 is formed between the fan housing 310 and the side wall of the inner container 200, a first heating wire 330 is arranged in the air cavity 340, and a plurality of air guide holes 230 communicated with the air cavity 340 are formed in the side wall of the inner container 200. More specifically, further, be equipped with a plurality of first heater strips 330 in the wind chamber 340, a plurality of the heater strips are set up in parallel in the wind chamber 340, first heater strip 330 with the oven bottom is parallel, and the length direction of first heater strip 330 is along the depth direction of oven sets up, the depth direction of oven refers to the direction of oven panel to oven back. The fan 320 is disposed in the air cavity 340, and when the fan 320 operates, the air in the air cavity 340 passes through the air guide hole 230 and enters the inner container 200.

More specifically, the casing 100 and the inner container 200 are made of alloy, the casing 100 may be fixed to the periphery of the inner container 200 by screws, and the casing 100 and the inner container 200 are fixed to each other to form a completed oven structure. The cabinet 100 is provided with a door panel 110 assembly, and the door panel 110 assembly is opened and then communicated with the inner container 200 to place food into the inner container 200. More specifically, the door panel 110 is hinged to the casing 100. A control key 120 is arranged below the door panel 110, and the control key 120 may be a mechanical key of a knob or a liquid crystal control panel, and is used for controlling the temperature and the heating time of the oven. The fan housing 310 is also made of alloy, and can be fixed to the sidewall of the inner container 200 by screws or welding. The fan 320 is a cross-flow fan, the bottom of the air cavity 340 is open, and the fan 320 is arranged at the bottom opening of the air cavity 340. When the cross-flow fan is operated, the airflow enters the air cavity 340 in a flow direction parallel to the side wall of the inner container 200, and the airflow in the air cavity 340 enters the inner container 200 in a flow direction parallel to the bottom wall of the inner container 200.

In the inner container 200, a tray for holding food is parallel to the bottom of the inner container 200, and in the air oven of the present application, the air flow in the air cavity 340 enters the inner container 200 in a flow direction parallel to the bottom of the inner container 200, that is, when the air oven is used, the air flow also enters the inner container 200 in a flow direction parallel to the tray. In the application, the axial flow fan of the common oven is replaced by the cross flow fan, and the occupied space of the axial flow fan is small, so that the oven can be reduced. And the axial flow fan is adopted to improve the airflow direction of the oven, so that the thermal field of the oven liner 200 is more uniform.

The oven comprises a shell 100, an inner container 200 and an external circulation air duct 300, wherein the shell 100 is arranged on the periphery of the inner container 200, and the external circulation air duct 300 is arranged between the shell 100 and the inner container 200. The external circulation air duct 300 includes a fan housing 310 and a fan 320, an air chamber 340 is formed between the fan housing 310 and the sidewall of the inner container 200, a first heating wire 330 is disposed in the air chamber 340, and the first heating wire 330 heats air in the air chamber 340. When the fan 320 operates, the high-temperature air in the air cavity 340 enters the inner container 200 through the air guide holes 230 to heat the food. The high temperature air in the air chamber 340 has enough oxygen content, and the flowing air makes the thermal field in the inner container 200 uniform, so that the food can be heated quickly and effectively, and the color of the heated food is uniform and beautiful. The oven avoids the defect that the fan 320 is arranged at the top of the oven in the prior art, and achieves the purposes of improving the thermal efficiency of the oven and reducing the volume of the oven by arranging the external circulation air duct 300.

Further, a plurality of air guide grooves 220 are formed in the side wall of the inner container 200, the length direction of the air guide grooves 220 is the same as the length direction of the first heating wire 330, the air guide grooves 220 are recessed from the side wall of the inner container 200 to the inside of the inner container 200, and the plurality of air guide grooves 220 are arranged in parallel on the side wall of the inner container 200 along the height direction of the inner container 200. More specifically, the cross section of the air guiding groove 220 is trapezoidal, and the width of the air guiding groove 220 on the side far away from the inner container 200 is greater than the width of the air guiding groove 220 on the side close to the inner container 200.

Similarly, the length direction of the air guide groove 220 is arranged along the depth direction of the oven. The air guide groove 220 may be formed by stamping. The structure with the larger side and the smaller side on one side of the air guide groove 220 plays a role in guiding air flow, and after the air flow enters the air guide groove 220, the flow area is reduced, so that the flow speed is increased, and the air flow can rapidly enter the inner container 200.

In a more specific embodiment, a plurality of the wind guide holes 230 are disposed in each wind guide slot 220, and a plurality of the wind guide holes 230 are disposed in a row in the wind guide slot 220. More specifically, in the air guide groove 220, a plurality of air guide holes 230 are connected in a line.

Further, each first heating wire 330 corresponds to the air guiding hole 230 in one air guiding groove 220; and the axis of the first heating wire 330 is parallel to the plane of the air guiding hole 230. The first heating wire 330 corresponds to the air guiding hole 230, so that the air flow passes through the first heating wire 330 and then enters the inner container 200, which ensures the temperature of the air entering the inner container 200.

Further, a second heating wire 210 is arranged inside the inner container 200, two rows of the second heating wires 210 are arranged inside the inner container 200, and the two rows of the second heating wires 210 are respectively arranged near the top wall of the inner container 200 and the bottom wall of the inner container 200. The second heating wire 210 is also used for heating food, and the first heating wire 330 and the second heating wire 210 work together to heat and cook the food in the oven rapidly.

Further, the bottom and the side walls of the casing 100 are respectively provided with a plurality of air inlets 130. The air inlet 130 is arranged at the bottom of the oven, so that a cross-flow fan can draw air into the air cavity 340 from the bottom of the oven.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, so that the scope of the present application is not to be construed as being limited. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An external circulation air duct air furnace oven is characterized by comprising a machine shell (100), an inner container (200) and an external circulation air duct (300);

the casing (100) is arranged at the periphery of the inner container (200), and the external circulation air duct (300) is arranged between the casing (100) and the inner container (200);

the external circulation air duct (300) comprises a fan cover (310) and a fan (320), the fan cover (310) is fixed on the side wall of the inner container (200), an air cavity (340) is formed between the fan cover (310) and the side wall of the inner container (200), a first heating wire (330) is arranged in the air cavity (340), and a plurality of air guide holes (230) communicated with the air cavity (340) are formed in the side wall of the inner container (200); the fan (320) is arranged in the air cavity (340), and when the fan (320) operates, the air in the air cavity (340) passes through the air guide hole (230) and enters the inner container (200).

2. The external circulation air duct stove oven of claim 1, characterized in that:

the bottom of the air cavity (340) is open, and the fan (320) is arranged at the bottom of the air cavity (340); when the fan (320) is a cross-flow fan (320), when the fan (320) operates, airflow enters the air cavity (340) in a flow direction parallel to the side wall of the inner container (200), and airflow in the air cavity (340) enters the inner container (200) in a flow direction parallel to the bottom wall of the inner container (200).

3. The external circulation duct air oven of claim 1, wherein:

the first heating wire (330) is arranged in the air cavity (340) and is parallel to the bottom of the inner container (200).

4. The external circulation air duct stove oven of claim 3, characterized in that:

the side wall of the inner container (200) is provided with a plurality of air guide grooves (220), the length direction of the air guide grooves (220) is the same as that of the first heating wire (330), the air guide grooves (220) are sunken from the side wall of the inner container (200) to the inside of the inner container (200), and the air guide grooves (220) are arranged on the side wall of the inner container (200) in parallel along the height direction of the inner container (200).

5. The external circulation duct air oven of claim 4, wherein:

the air guide grooves (220) are respectively provided with a plurality of air guide holes (230), and the air guide holes (230) are arranged in a row in the air guide grooves (220).

6. The external circulation air duct stove oven of claim 5, characterized in that:

each first heating wire (330) corresponds to the air guide hole (230) in one air guide groove (220); and the axis of the first heating wire (330) is parallel to the plane of the air guide hole (230).

7. The external circulation air duct stove oven of claim 4, characterized in that:

the cross section of the air guide groove (220) is trapezoidal, and the width of one side, far away from the inner container (200), of the air guide groove (220) is larger than the width of one side, close to the inner container (200), of the air guide groove.

8. The external circulation duct air oven of any one of claims 1-7, wherein:

the inner container (200) is internally provided with a second heating wire (210), the second heating wire (210) is arranged in two rows in the inner container (200), and the two rows of the second heating wire (210) are respectively close to the top wall of the inner container (200) and the bottom wall of the inner container (200).

9. The external circulation duct stove oven of any one of claims 1 to 7 wherein:

the bottom and the side wall of the casing (100) are respectively provided with a plurality of air inlets (130).

10. The external circulation duct air oven of any one of claims 1-7, wherein:

a door plate (110) is arranged on one side of the shell (100), and a control key (120) is arranged below the door plate (110).