CN215959452U - Oven backplate and oven - Google Patents

Abstract

The utility model provides an oven backboard and an oven, which relate to the technical field of kitchen appliances and comprise the following components: the inner wall plate is provided with an air inlet and an air return inlet; the volute casing plate is arranged on the inner wall plate, and an installation inner cavity is formed between the inner wall plate and the volute casing plate; the volute plate is provided with at least one volute cavity communicated with the installation inner cavity, the installation inner cavity is communicated with the air return inlet, and an outlet of the volute cavity is communicated with the air inlet; the heating element is arranged in the installation inner cavity or the volute cavity; the fan is arranged in the volute cavity; the driving piece is in driving connection with the fan. In the technical scheme, the volute casing plate can form the volute casing cavity in the oven back plate, after the fan is arranged in the volute casing cavity, gas generated by the fan can be collected and guided, and the state can change part of kinetic energy into static pressure, so that the flow channel of the fan can be gradually enlarged along the rotation direction of the fan, the static pressure head of the fan and the fan efficiency of a high-pressure section can be effectively increased, the wind speed can be improved, and the technical requirement of air frying can be met.

Description

Oven backplate and oven

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to an oven back plate and an oven.

Background

Kitchen cooking appliances mainly rely on the high temperature environment of its cavity to cook food, and this kind of high temperature generally comes from the heat of heating tube, and brings the cavity into with the heat is even, reaches outstanding culinary art effect, and the core technology is exactly to rely on hot air system. At present, the function of air frying is more and more widely used on an oven, the working principle of the air frying is a high-speed air circulation technology, hot air is generated through a heating pipe inside the oven to provide heat, then the hot air is blown into the oven by a fan to circulate in a closed space, so that food is heated, and the food is fried by using the grease of the food, so that the food is dehydrated, the surface of the food becomes golden and crisp, and the frying effect is achieved. However, in most of the existing oven hot air systems, a fan is directly arranged on the back plate to directly blow heat into the cavity, and the air speed of the hot air in the form is generally low, so that the requirements of air frying and other high air speeds under a large cavity are difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oven back plate and an oven, and aims to solve the technical problems that the air speed of hot air in an inner cavity of the oven is low and the technical requirements of air frying cannot be met in the prior art.

The utility model provides an oven backboard, which comprises:

the inner wall plate is provided with an air inlet and an air return inlet;

the volute plate is arranged on the inner wall plate, and an installation inner cavity is formed between the inner wall plate and the volute plate; the volute plate is provided with at least one volute cavity communicated with the installation inner cavity, the installation inner cavity is communicated with the air return opening, and an outlet of the volute cavity is communicated with the air inlet;

the heating element is arranged in the installation inner cavity or the volute cavity;

the fan is arranged in the volute cavity;

the driving piece is in driving connection with the fan.

Further, the oven back plate further comprises:

the outer shell plate is arranged on the inner wall plate and/or the volute shell plate, and the volute shell plate is positioned between the outer shell plate and the inner wall plate; the driving part is arranged on the outer shell plate, and the driving end of the driving part penetrates through the volute shell plate to be in driving connection with the fan positioned in the volute cavity.

Furthermore, the driving part is located on the outer side wall of the outer shell plate, and the driving end of the driving part penetrates through the outer shell plate and the volute plate to be in driving connection with the fan located in the volute cavity.

Furthermore, the inside wall of shell plate is provided with the arc sunken, this arc sunken protrusion in the outside wall of shell plate to the outside wall encloses into the holding tank, the driving piece sets up in the holding tank.

Furthermore, the number of the volute cavities is two, the two volute cavities are symmetrically arranged on the volute plate, and each volute cavity is internally provided with one fan and one heating element.

Furthermore, the volute casing plate comprises a flat plate and a volute casing forming the volute casing cavity, the flat plate is provided with a mounting hole, and the volute casing is arranged in the mounting hole and forms the volute casing plate together with the flat plate.

Furthermore, each air return inlet is provided with at least two air inlets, and different air inlets are respectively positioned in different directions of the air return inlet.

Furthermore, the air inlets surround the air return inlets matched with the air inlets, and the air inlet directions of the air inlets are sequentially arranged along the clockwise or anticlockwise direction.

Furthermore, the number of the air inlets is two, and the two air inlets are respectively positioned in the up-and-down direction of the matched air return inlet.

The present application further provides an oven, including the oven backplate.

In the technical scheme, the volute plate can form a volute cavity in the oven back plate, after the fan is arranged in the volute cavity, gas generated by the fan can be collected and guided, and the state can change part of kinetic energy into static pressure, so that the flow channel of the fan can be gradually enlarged along the rotation direction of the fan, the static pressure head of the fan and the efficiency of the fan in a high-pressure section can be effectively increased, and the wind speed is favorably improved. And after the heating element heats the air at the same time, high-speed heat flow can be formed, so that the technical requirement of air frying is met, and the air frying function is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded view of an oven backboard provided in accordance with one embodiment of the present invention;

FIG. 2 is a plan exploded view of the toaster back plate shown in FIG. 1;

FIG. 3 is an exploded view of an oven backplate 1 according to another embodiment of the present invention;

FIG. 4 is an exploded view of an oven backplate according to another embodiment of the present invention 2;

FIG. 5 is a plan exploded view of the toaster back plate shown in FIG. 3;

FIG. 6 is a perspective view of a volute plate provided in accordance with one embodiment of the present invention;

FIG. 7 is an assembled perspective view of a toaster back plate according to an embodiment of the present invention;

FIG. 8 is a front view of the toaster back plate shown in FIG. 7;

FIG. 9 is a rear view of the toaster back plate shown in FIG. 7;

FIG. 10 is a top view of the toaster back plate shown in FIG. 7;

FIG. 11 is a perspective view of an oven provided in accordance with one embodiment of the present invention;

FIG. 12 is a front view of the oven shown in FIG. 11;

FIG. 13 is a rear view of the oven of FIG. 11;

FIG. 14 is a top view 1 of the oven shown in FIG. 11;

FIG. 15 is a top view 2 of the oven shown in FIG. 11;

FIG. 16 is a side view of the oven shown in FIG. 11;

fig. 17 is a schematic structural view of an inner cavity of an oven 1 according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of an inner cavity of an oven according to an embodiment of the present invention, which is shown in fig. 2.

Reference numerals:

001. a back plate of the oven; 002. an oven;

100. an inner wall panel; 200. a volute plate; 300. an outer shell plate;

400. a heating member; 500. a fan; 600. a drive member;

110. an air inlet; 120. an air return opening; 130. a volute cavity;

210. a plate member; 220. a volute;

310. an arc-shaped recess; 320. and (6) accommodating the tank.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical principle of air-frying is to form high-speed heat flow to cook food so as to achieve the effect of frying food, and in view of the heating basic principle of the oven 002, the integration of the air-frying function on the oven 002 is a trend. However, a key issue for integrating air-frying in the oven 002 is increasing the wind speed. In the existing oven 002, some adopt a single fan 500 hot air system, the air speed and the air volume of the system structure are limited, and if the performance of the fan 500 is singly improved, the noise is too large, and the performance of the whole oven is affected. If the number of the fans 500 is increased, for example, the double fan 500 hot air system, the fans 500 are generally directly mounted on the oven back plate 001, although the air volume can be increased, the air speed still cannot be increased. Similarly, for example, the multi-fan active heat dissipation technology can improve the wind speed and solve the heating problems of a plurality of different spaces, but the heating structure of a plurality of air channels greatly increases the heating cost and the structural complexity of the whole machine, and seriously reduces the reliability of the whole machine. The single fan or multi-fan heat dissipation technology also needs to design a special air duct structure, so that the number of parts and the cost of the whole machine are increased. In this regard, the present application provides a comprehensive solution to such problems to solve the problem of integrating air-frying technology in the oven 002, as follows.

As shown in fig. 1 and fig. 2, the oven back plate 001 provided in this embodiment includes an inner wall plate 100, which is provided with an air inlet 110 and an air return 120; the oven back plate 001 further comprises a volute plate 200 arranged on the inner wall plate 100, and an installation inner cavity is formed between the inner wall plate 100 and the volute plate 200; the volute plate 200 is provided with at least one volute cavity 130 communicated with the installation cavity, the installation cavity is communicated with the air return opening 120, and an outlet of the volute cavity 130 is communicated with the air inlet 110; the toaster back 001 further comprises a heating element 400 disposed in the mounting internal cavity or the volute cavity 130; the oven back plate 001 further comprises a fan 500 disposed in the volute cavity 130; the oven back plate 001 further comprises a driving member 600, which is in driving connection with the fan 500.

The volute plate 200 is mainly added in the oven back plate 001, the volute plate 200 can form a volute cavity 130 in the oven back plate 001, when the fan 500 is arranged in the volute cavity 130, gas generated by the fan 500 can be collected and guided, and part of kinetic energy can be changed into static pressure in the state, so that the flow channel of the fan 500 can be gradually enlarged along the rotation direction of the fan 500, the static pressure head of the fan 500 and the efficiency of the fan 500 in a high-pressure section can be effectively increased, and the wind speed can be improved. And after the heating element 400 heats the air at the same time, high-speed heat flow is formed, so that the technical requirement of air frying is met, and the air frying function is realized.

The installation cavity and the volute cavity 130 are communicated to form an integral cavity structure, but the integral cavity forms different cavity shapes according to installation requirements and volute 220 flow guiding requirements, so that different purposes are achieved, and the integral cavity structure is divided into different parts. Meanwhile, the installation cavity and the volute cavity 130 can also be two separate cavities, and the installation cavity can be used for installing the corresponding components such as the heating element 400, but the fan 500 needs to be installed in the volute cavity 130 to form a high-speed airflow by using the volute cavity 130. Alternatively, the heating element 400 may be installed in the volute chamber 130 together with the fan 500, and the air in the volute chamber 130 is directly heated by the heating element 400, that is, the air around the fan 500 is directly heated, and then the high-speed heat flow is directly formed by the fan 500.

Further, with continued reference to fig. 3 to 5, the oven back plate 001 further includes an outer shell plate 300 disposed on the inner wall plate 100 or the volute plate 200, and the volute plate 200 is located between the outer shell plate 300 and the inner wall plate 100; the driving member 600 is disposed on the casing plate 300, and a driving end of the driving member 600 penetrates through the volute plate 200 to be in driving connection with the fan 500 located in the volute cavity 130. At this time, after the outer shell plate 300 is added, the outer shell plate 300, the inner wall plate 100 and the volute shell plate 200 located therebetween can be utilized to jointly form the integral oven back plate 001, the inner wall plate 100 faces one side of the inner cavity of the oven 002 and directly corresponds to the inner cavity of the oven 002, the outer shell plate 300 is located on the outer side of the oven 002 and can be used for forming the outer wall of the rear portion of the oven 002, and the volute shell plate 200 can be arranged between the inner wall plate 100 and the outer shell plate 300 and is used for forming the volute cavity 130. At this time, the driving element 600 may be fixedly mounted on the casing plate 300 based on the casing plate 300, and the volute plate 200 may be provided with a corresponding hole or opening, and after the driving element 600 is fixed on the casing plate 300, the output end of the driving element 600 may pass through the volute plate 200 through the hole or opening, and then forms a driving connection structure with the fan 500 in the volute cavity 130 of the volute plate 200.

Further, for the assembly of the driving element 600, the driving element 600 may be installed at any corresponding position on the casing plate 300, for example, the driving element 600 is located on the outer side wall of the casing plate 300, and at this time, the casing plate 300 may also be provided with a corresponding hole or opening, after the driving element 600 is fixed on the casing plate 300, the output end of the driving element 600 may pass through the casing plate 300 through the hole or opening, so that the driving end of the driving element 600 penetrates through the casing plate 300 and the volute plate 200 to be in driving connection with the fan 500 located in the volute cavity 130. Alternatively, the driving member 600 may be mounted on the inner sidewall of the housing plate 300, which requires a corresponding position of the housing plate 300 to form a cavity or a groove structure to accommodate the mounting of the driving member 600. In addition, the driving member 600 may adopt various motors and other components capable of driving the fan 500 to rotate, and is not limited herein.

Further, for the structure of the casing plate 300, the casing plate 300 may be adapted to the size and dimension of the inner wall plate 100, and may also be adapted to the structure of the volute plate 200, for example, as shown in fig. 6, the inner wall of the casing plate 300 is provided with an arc-shaped recess 310, the arc-shaped recess 310 protrudes from the outer wall of the casing plate 300, and forms a receiving groove 320 around the outer wall, and the driving member 600 is disposed in the receiving groove 320. At this time, the arc-shaped recess 310 may form an adaptation with the volute cavity 130 on the volute plate 200, and the arc-shaped recess 310 protrudes out of the outer sidewall of the casing plate 300, and the accommodating groove 320 may be formed on the outer sidewall, so that one arc-shaped recess 310 formed on the casing plate 300 may have an effect of forming a corresponding structure at two positions of the inner sidewall and the outer sidewall of the casing plate 300 at the same time, and not only may adapt to the structure of the volute cavity 130 on the volute plate 200, but also may form a structure of the accommodating groove 320 accommodating the driving element 600.

Further, the number of the volute cavities 130 may be set according to actual requirements, in order to ensure that the volute cavities 130 can assist the fan 500 to form a sufficient wind speed and enable the formed airflow to be symmetrical and stable, the whole volute plate 200 may be constructed according to even number of symmetrical volute cavities 130, for example, the number of the volute cavities 130 may be two, four, six, and the like, and when the even number of volute cavities 130 are set, the number of the volute cavities 130 may also be formed according to a certain sequence or a certain arrangement relationship, for example, the number of the even number of volute cavities 130 may be arranged in a symmetrical manner, or the number of the even number of volute cavities 130 may be arranged in a circular shape, so that the volute cavities 130 may form a predetermined high-speed airflow in a preset arrangement state, and provide a predetermined high-speed heat flow for the inner cavity of the oven 002. In one embodiment, when the number of the volute cavities 130 is set, the number of the volute cavities 130 is two, two volute cavities 130 are symmetrically arranged on the volute plate 200, and one fan 500 and one heating element 400 are arranged in each volute cavity 130. At this time, high-speed heat flow can be formed in each volute cavity 130 independently, but the two volute cavities 130 are arranged symmetrically, so that the temperature fields of the cavities are also symmetrical.

Moreover, for the fan 500 and the heating element 400, if each volute chamber 130 can be separately provided with a fan 500 and a heating element 400, a separate high-speed heat flow source can be formed for the volute chamber 130 and a fan 500 or a heating element 400 therein, and then the other high-speed heat flow sources can work independently without conflict. Thus, when the plurality of volute chambers 130 are arranged in a predetermined manner, a plurality of individual high-speed heat flows can be formed through each volute chamber 130, thereby constructing a high-speed heat flow environment in the inner cavity of the oven 002.

In addition, it is not completely limited to the heating element 400 of the blower 500 that one blower 500 and one heating element 400 are disposed in each volute cavity 130, and other numbers of blowers 500 and heating elements 400 may be disposed according to requirements, or one blower 500 is disposed in each volute cavity 130, but the plurality of volute cavities 130 and the plurality of blowers 500 share one or more heating elements 400, and the specific structure is not limited, and those skilled in the art may set the heating elements according to requirements.

Further, as for the structure of the volute plate 200, the volute plate 200 may be any one as long as the volute cavity 130 can be formed in the oven back plate 001, so the volute plate 200 may be formed by an integral plate structure, that is, the plate structure has the volute cavity 130 on its own, and after the volute plate 200 having the volute cavity 130 is mounted on the oven back plate 001, the volute cavity 130 can be attached to the oven back plate 001, so that the volute cavity 130 is matched with the fan 500 to form a high-speed heat flow. Besides, the volute plate 200 can actually adopt a split structure, in which the volute plate 200 includes a flat plate 210 and a volute 220 forming the volute chamber 130, the flat plate 210 has a mounting hole, and the volute 220 is disposed in the mounting hole to form the volute plate 200 with the flat plate 210. At this time, the flat plate may be used as a plate structure forming a basic structure of the volute plate 200, and the flat plate 210 has a mounting hole, which is formed according to a preset structure of the volute chamber 130, so that after the volute 220 is mounted in the mounting hole of the flat plate 210, the volute 220 and the flat plate 210 may form an integral structure, i.e., a structure of the volute plate 200, and after the volute 220 and the flat plate are assembled, the volute 220 may be formed in the volute plate 200, so as to assist the fan 500 to form a high-speed airflow.

Further, for the air inlet 110 and the air return 120, after the oven back plate 001 is installed on the oven 002 to assemble into the oven 002, the air inlet 110 is an inlet for supplying air from the oven back plate 001 into the inner cavity of the oven 002, and correspondingly, the air return 120 is an inlet for returning air from the inner cavity of the oven 002 into the oven back plate 001, therefore, the number of the air inlet 110 and the air outlet can be actually set according to the actual situation, for example, each air return 120 is provided with at least two air inlets 110, and different air inlets 110 are respectively located in different directions of the air return 120. After the high-speed hot air enters the inner cavity of the oven 002 from different air inlets 110, the high-speed hot air with corresponding degree can be applied to different positions in the inner cavity of the oven 002, and when the distribution of the air inlets 110 is more uniform, the high-speed air flow applied to the inner cavity of the oven 002 is more uniform, so that the cooking uniformity is improved. Accordingly, the hot air in the cavity of the oven 002 flows back into the oven back plate 001 through the air return opening 120, thereby forming a cycle. Although each air return opening 120 is matched with a plurality of air inlet openings 110, the number of the air return openings 120 may be correspondingly configured according to the number of the volute cavities 130, for example, each volute cavity 130 is configured with at least one air return opening 120, so that the air flow flowing back in the inner cavity of the oven 002 can directly enter the inner cavity along the corresponding matched volute cavity 130 after entering the oven back plate 001 along the corresponding air return opening 120, and directly continue to circulate along the fan 500, and then enter the inner cavity of the oven 002 from the corresponding air inlet opening 110 to form a circulation.

Further, for the matching type of the air inlet 110 and the air return 120, various structural forms may be provided, for example, a plurality of air inlets 110 surround the air return 120 matched therewith, and the air inlet direction of the plurality of air inlets 110 is sequentially arranged along the clockwise direction or the counterclockwise direction. And the air inlet directions around the plurality of air inlets 110 which do not communicate with the air return opening 120 can be all clockwise or all counterclockwise, or can be clockwise or counterclockwise according to the requirement.

Further, in an embodiment, there are two air inlets 110, and the two air inlets 110 are respectively located in the up-down direction of the matched air return 120. The structure with the air inlets 110 symmetrically arranged in the vertical direction can form the design of the upper air outlet and the lower air outlet, thereby not only ensuring the sufficient hot air intensity above the food, but also ensuring the necessary heat of the space below the food.

As shown in fig. 7 to 18, the present application also provides an oven 002 including the oven back plate 001. Since the technical structure, functional principle and technical effect of the oven backboard 001 are described in detail in the foregoing, no further description is provided herein, and any technical content related to the oven backboard 001 can be found in the foregoing description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An oven backboard, comprising:

the inner wall plate is provided with an air inlet and an air return inlet;

the volute plate is arranged on the inner wall plate, and an installation inner cavity is formed between the inner wall plate and the volute plate; the volute plate is provided with at least one volute cavity communicated with the installation inner cavity, the installation inner cavity is communicated with the air return opening, and an outlet of the volute cavity is communicated with the air inlet;

the heating element is arranged in the installation inner cavity or the volute cavity;

the fan is arranged in the volute cavity;

the driving piece is in driving connection with the fan.

2. The oven backplane of claim 1, further comprising:

the outer shell plate is arranged on the inner wall plate and/or the volute shell plate, and the volute shell plate is positioned between the outer shell plate and the inner wall plate; the driving part is arranged on the outer shell plate, and the driving end of the driving part penetrates through the volute shell plate to be in driving connection with the fan positioned in the volute cavity.

3. The oven backplane of claim 2, wherein the driver is located on an outer sidewall of the housing plate, the driver end penetrating the housing plate and the volute plate in driving connection with the fan located within the volute cavity.

4. The toaster back plate of claim 3, wherein an inner sidewall of said outer case plate is provided with an arcuate recess that protrudes from an outer sidewall of said outer case plate and defines a receiving groove in said outer sidewall, said driving member being disposed within said receiving groove.

5. The oven backplane according to any of the claims 1-4, wherein the number of the volute cavities is two, two of the volute cavities are symmetrically disposed on the volute plate, and one of the fan and one of the heating element are disposed in each of the volute cavities.

6. The oven backplate of any one of claims 1-4, wherein the volute plate comprises a planar member having a mounting hole therein and a volute forming the volute chamber, the volute being disposed in the mounting hole to form the volute plate with the planar member.

7. The oven backplane of any of claims 1-4, wherein each of said air returns is provided with at least two of said air intakes, different ones of said air intakes being located in different directions of said air returns, respectively.

8. The oven back plate of claim 7, wherein the plurality of air inlets surround the air return inlet, and the air inlets are sequentially arranged in a clockwise or counterclockwise direction.

9. The oven back plate of claim 7, wherein the number of the air inlets is two, and the two air inlets are respectively located at the upper and lower directions of the matched air return inlets.

10. An oven comprising the oven backplate of any one of claims 1-9.

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