Oven

Abstract

The utility model provides an oven, and belongs to the technical field of cooking equipment. The oven comprises a shell, at least one heating pipe and a draught fan, the shell comprises a back plate, a draught fan cover, a main shell and a door body, the back plate and the main shell jointly define a main cavity, the door body is movably installed at the front end of the main shell and opens and closes the main cavity, the draught fan cover is arranged in the main cavity, and an air cavity is jointly defined by the draught fan cover and the back plate. The fan cover is provided with an air inlet hole communicated with the air cavity and the main cavity, the edge of the fan cover is provided with a plurality of air outlet holes, the back plate is provided with an air outlet channel, and the air outlet channel is communicated with the air cavity and the air outlet holes; the heating pipe is mounted in the main cavity; and the fan is mounted in the air cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to an oven. Background Art

[0002] An oven is a cooking machine that holds food in a closed space and heats and cooks the food. Currently, a heating tube and a stirring fan are usually provided in the relevant oven, and the stirring fan circulates the air inside the box, thereby accelerating the temperature rise inside the box.

[0003] The stirring fans of existing ovens are mostly centrifugal fan blades. During the rotation of the fan blades (taking counterclockwise rotation as an example), part of the wind will be blown upward to the heating tube and then reach the right area, causing the temperature on the right side to be locally high and the overall heating in the cavity to be uneven. Utility Model Content

[0004] The utility model aims to provide an oven, which can realize orderly air discharge from the air outlet holes of the fan cover and evenly heat the interior of the main cavity.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, an oven is provided, comprising a shell, at least one heating tube and a fan, the shell comprising a back plate, a fan cover, a main shell and a door body, the back plate is fixedly connected to the rear end of the main shell and together surrounds a main cavity, the door body can be movably installed at the front end of the main shell and opens and closes the main cavity, the fan cover is arranged in the main cavity, and the fan cover and the back plate together surround an air cavity, the fan cover is provided with an air inlet hole connecting the ventilation cavity and the main cavity, a plurality of air outlet holes are provided at the edge of the fan cover, the back plate is provided with an air outlet channel, and the air outlet channel connects the ventilation cavity and the air outlet holes; the heating tube is installed in the main cavity; the fan is installed in the air cavity.

[0007] According to one embodiment of the utility model, the fan cover includes a cover shell with an opening and an annular plate, the opening of the cover shell is connected to the inner edge of the annular plate, the air inlet is located on the cover shell, the annular plate is installed on the back plate, the cover shell and the back plate enclose the air cavity, and the air outlet is located on the annular plate.

[0008] According to one embodiment of the utility model, the air outlet channel is a groove, one end of the groove extends into the wind cavity, and the other end of the groove extends to a position opposite to the air outlet hole; or the air outlet channel is an air duct, one end of the air duct is connected to the wind cavity, and the other end of the air duct is opposite to the air outlet hole.

[0009] According to an embodiment of the present invention, the groove includes a first groove and a second groove that are connected, and groove walls of the first groove and the second groove have an angle of 100-160 degrees.

[0010] According to one embodiment of the utility model, there are four air outlet channels, which are respectively located at the upper left, upper right, lower left and lower right positions of the back plate, and there are four air outlet holes accordingly.

[0011] According to an embodiment of the present invention, each air outlet hole includes a plurality of strip holes arranged at intervals.

[0012] According to an embodiment of the present utility model, the air inlet hole is opposite to the back plate, and the fan of the fan is opposite to the air inlet hole.

[0013] According to one embodiment of the utility model, the air inlet hole includes a plurality of circular holes, and the plurality of circular holes are arranged at intervals to form a circular air inlet area, and the diameter of the circular air inlet area is smaller than the diameter of the fan rotating surface of the fan.

[0014] According to an embodiment of the present invention, the cross section of the cover shell is polygonal or circular.

[0015] According to an embodiment of the present invention, the cross section of the cover shell is octagonal.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The utility model oven comprises a shell, at least one heating tube and a fan, the shell comprises a back plate, a fan cover, a main shell and a door body, the back plate and the main shell are jointly surrounded by a main cavity, the door body can be movably installed at the front end of the main shell and open and close the main cavity, the fan cover is arranged in the main cavity, and the fan cover and the back plate are jointly surrounded by a wind cavity, the fan cover is provided with an air inlet hole connecting the ventilation cavity and the main cavity, the edge of the fan cover is provided with a plurality of air outlet holes, the back plate is provided with an air outlet channel, and the air outlet channel connects the ventilation cavity and the air outlet holes; the heating tube is installed in the main cavity; the fan is installed in the air cavity, when the fan rotates, the fan center of the fan in the air cavity is a negative pressure area, the negative pressure area sucks the hot air in the main cavity into the air cavity through the air inlet hole, and discharges the air into the main cavity again through the air outlet channel and the air outlet hole, so as to realize the circulation of hot air. When the rotating airflow in the air cavity is guided by the air outlet channel, a stable, non-rotating airflow is formed, so that the airflow is discharged from the air outlet hole in an orderly manner, so as to realize the uniform heating inside the main cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0019] Figure 1 is a perspective view of an oven according to an exemplary embodiment.

[0020] Figure 2is an internal front view of an oven shown according to an exemplary embodiment.

[0021] Figure 3 is an internal perspective view of an oven shown according to an exemplary embodiment.

[0022] Figure 4 is an exploded view of an oven according to an exemplary embodiment.

[0023] Figure 5 is a cross-sectional view of an oven according to an exemplary embodiment.

[0024] Figure 6 is another cross-sectional view of an oven according to an exemplary embodiment.

[0025] Figure 7 is a perspective view of a fan guard according to an exemplary embodiment.

[0026] The reference numerals are described as follows:

[0027] 1. Shell; 11. Back plate; 111. Air outlet channel; 12. Fan cover; 121. Air inlet; 122. Air outlet; 123. Cover; 124. Ring plate; 13. Main shell; 14. Door; 15. Main cavity; 16. Wind cavity; 2. Heating tube; 3. Fan. DETAILED DESCRIPTION

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0029] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0030] like Figure 1-7 As shown, an oven according to an embodiment of the utility model includes a shell 1, at least one heating tube 2 and a fan 3.

[0031] The housing 1 includes a back plate 11, a fan cover 12, a main housing 13 and a door body 14. The back plate 11 is fixedly connected to the rear end of the main housing 13 and together they surround a main cavity 15. The door body 14 can be movably installed at the front end of the main housing 13 to open and close the main cavity 15.

[0032] The fan cover 12 is arranged in the main cavity 15, and the fan cover 12 is detachably connected to the back plate 11, and the fan cover 12 and the back plate 11 jointly surround an air cavity 16. The fan cover 12 is provided with an air inlet hole 121 connecting the air cavity 16 and the main cavity 15, and a plurality of air outlet holes 122 are provided on the edge of the fan cover 12. The back plate 11 is provided with an air outlet channel 111, and the air outlet channel 111 connects the air cavity 16 and the air outlet holes 22.

[0033] The heating tube 2 is installed at the bottom and / or top of the main cavity 15 for baking food. Both side walls of the main cavity 15 have a plurality of supporting parts arranged up and down, and the two ends of the baking tray are placed on the supporting parts.

[0034] The fan 3 is installed in the air cavity 16 . The fan 3 includes a motor and a fan installed on the motor shaft. The motor is fixed on the back plate 11 .

[0035] When the fan 3 rotates, the fan center of the fan 3 in the air cavity 16 is a negative pressure area. The negative pressure area sucks the hot air in the main cavity 15 into the air cavity 16 through the air inlet hole 121, and discharges the air into the main cavity 15 again through the air outlet channel 11 and the air outlet hole 22, thereby realizing the circulation of the hot air.

[0036] When the rotating airflow in the air cavity 16 is guided by the air outlet channel 111 , a stable, non-rotating airflow is formed, so that the airflow is discharged from the air outlet holes 22 in an orderly manner, thereby achieving uniform heating inside the main cavity 15 .

[0037] In a preferred embodiment of the utility model, there are two heating tubes 2, which are respectively installed in the main cavity 15 and the wind cavity 16. The heating tubes 2 located in the wind cavity 16 surround the fan of the blower 3 to heat the air entering the wind cavity 16 and then discharge it into the main cavity 15, thereby increasing the temperature in the main cavity 15.

[0038] like Figure 2-7 As shown, in a preferred embodiment of the present invention, the fan cover 12 includes a cover shell 123 with an opening and an annular plate 124 .

[0039] like Figure 7 As shown, the opening of the cover shell 123 is connected to or integrally formed with the inner edge of the annular plate 124 , and the air inlet 121 is located on the cover shell 123 .

[0040] like Figure 5 As shown, the annular plate 124 is installed on the back plate 11 , one side of the annular plate 124 abuts against the inner wall of the back plate 11 , the cover 123 and the back plate 11 enclose an air cavity 16 , and the air outlet 122 is located on the annular plate 124 .

[0041] like Figure 3 , 4As shown in FIG. 6 , in a preferred embodiment of the utility model, the air outlet channel 111 is a groove, the opening of the groove faces the annular plate 124, the groove wall of the groove and the annular plate 124 are jointly arranged to form an air outlet duct, one end of the groove extends into the air cavity 16, and the other end of the groove extends to a position opposite to the air outlet hole 122, and the fan 3 draws air into the air cavity 16 and exhausts it into the main cavity 15 through the groove and the air outlet hole 122.

[0042] Of course, the air outlet channel 111 is not limited to being a groove. For example, the air outlet channel 111 can also be an independent air duct, one end of which is connected to the wind cavity 16, and the other end of the air duct is opposite to the air outlet hole 122. Technical personnel in this field can select the structure of the air outlet channel according to actual needs.

[0043] like Figure 3 , 4 As shown in FIG. 6 , in a preferred embodiment of the present utility model, there are four air outlet channels 111 , which are respectively located at the upper left, upper right, lower left and lower right positions of the back plate 11 , and there are four air outlet holes 122 accordingly.

[0044] Of course, the number of the air outlet channels 111 is not limited to four, and those skilled in the art can select the number of the air outlet channels 111 according to actual needs.

[0045] like Figure 3 As shown, in a preferred embodiment of the present invention, the groove includes a first groove and a second groove that are connected, and the groove walls of the first groove and the second groove have an angle of 100-160 degrees. Figure 3 The groove walls of the first groove and the second groove shown in the figure have an included angle of 130°, so that the layout of the grooves and the air outlet holes 122 is more reasonable.

[0046] like Figure 2-7 As shown, in a preferred embodiment of the present invention, each air outlet hole 122 includes a plurality of strip holes arranged at intervals, and the plurality of strip holes arranged at intervals together form a rectifying grid, so that the outflowing airflow is more stable.

[0047] like Figure 2-6 As shown, in a preferred embodiment of the present utility model, the air inlet hole 121 is opposite to the back plate 11, and the fan of the fan 3 is opposite to the air inlet hole 121, so as to achieve the best air intake efficiency.

[0048] like Figure 3 As shown, in a preferred embodiment of the present invention, the air inlet hole 121 includes a plurality of circular holes, which are arranged at intervals to form a circular air inlet area, and a diameter d1 of the circular air inlet area is smaller than a diameter d2 of a fan rotating surface of the fan 3 .

[0049] If d1 is greater than d2, part of the airflow will leak out of the larger part. Since the air cannot circulate, this part of the airflow will easily cause the temperature in some areas to be lower.

[0050] like Figure 1-7 As shown, in a preferred embodiment of the present invention, the cross section of the cover 123 is polygonal or circular. When the cross section of the cover 123 is octagonal, the heat inside the main cavity 15 is most uniform. Since the air cavity 16 has multiple edges and corners, the multiple edges and corners guide the rotating airflow, further stabilizing the air outlet.

[0051] In a preferred embodiment of the present invention, a rectifying grid or a rectifying honeycomb is provided in the air outlet channel 111, and the rectifying grid or the rectifying honeycomb guides the swirling flow or turbulent flow passing through into parallel airflow.

[0052] Regarding the speed of the fan 3, for conventional ovens, too high a speed does not significantly help improve the uniformity of the oven temperature field. Instead, due to the disorder of the airflow path, it is easy to cause local temperature rise to accelerate. For the oven of the utility model, the higher the speed, the faster the circulation, which is beneficial to improve the uniformity of the temperature field inside the oven. For example, when the speed is greater than 1800rpm, the uniformity of the temperature field inside the oven is better.

[0053] In a preferred embodiment of the present utility model, a convex rib matching the shape of the air outlet channel 111 is provided on the outer wall surface of the back plate 11 corresponding to the air outlet channel 111 , so as to improve the structural strength of the back plate 11 .

[0054] In a preferred embodiment of the present invention, the air outlet channel 111 and the convex ribs are formed by stamping.

[0055] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0056] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0057] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oven, characterized in that: include: A housing (1), the housing (1) comprising a back plate (11), a fan cover (12), a main housing (13) and a door body (14), the back plate (11) being fixedly connected to the rear end of the main housing (13) and together surrounding a main cavity (15), the door body (14) being movably mounted on the front end of the main housing (13) and opening and closing the main cavity (15), the fan cover (12) being arranged in the main cavity (15), and the The fan cover (12) and the back plate (11) jointly enclose an air cavity (16); the fan cover (12) is provided with an air inlet hole (121) communicating with the air cavity (16) and the main cavity (15); a plurality of air outlet holes (122) are provided at the edge of the fan cover (12); the back plate (11) is provided with an air outlet channel (111), and the air outlet channel (111) communicates with the air cavity (16) and the air outlet holes (122); At least one heating tube (2) installed in the main cavity (15); The fan (3) is installed in the air cavity (16).

2. The oven according to claim 1, characterized in that: The fan cover (12) comprises a cover shell (123) having an opening and an annular plate (124); the opening of the cover shell (123) is connected to the inner edge of the annular plate (124); the air inlet hole (121) is located on the cover shell (123); the annular plate (124) is mounted on the back plate (11); the cover shell (123) and the back plate (11) are combined to form the air cavity (16); and the air outlet hole (122) is located on the annular plate (124).

3. The oven according to claim 2, characterized in that: The air outlet channel (111) is a groove, one end of the groove extends into the air cavity (16), and the other end of the groove extends to a position opposite to the air outlet hole (122); or the air outlet channel (111) is an air guide pipe, one end of the air guide pipe is connected to the air cavity (16), and the other end of the air guide pipe is opposite to the air outlet hole (122).

4. The oven according to claim 3, characterized in that: The groove comprises a first groove and a second groove which are connected to each other, and groove walls of the first groove and the second groove have an angle of 100-160 degrees.

5. The oven according to claim 2, characterized in that: There are four air outlet channels (111), and the four air outlet channels (111) are respectively located at the upper left, upper right, lower left and lower right positions of the back plate (11), and there are correspondingly four air outlet holes (122).

6. The oven according to claim 5, characterized in that: Each of the air outlet holes (122) comprises a plurality of strip holes arranged at intervals.

7. The oven according to claim 2, characterized in that: The air inlet hole (121) is opposite to the back plate (11), and the fan of the fan (3) is opposite to the air inlet hole (121).

8. The oven according to claim 7, characterized in that: The air inlet hole (121) comprises a plurality of circular holes, and the plurality of circular holes are arranged at intervals to form a circular air inlet area, wherein the diameter of the circular air inlet area is smaller than the diameter of the fan rotating surface of the fan (3).

9. The oven according to claim 2, characterized in that: The cross section of the cover shell (123) is polygonal or circular.

10. The oven according to claim 9, characterized in that: The cover shell (123) has an octagonal cross section.

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