阅读说明：本技术 烤箱的控制方法、计算机可读存储介质、控制装置 (Oven control method, computer readable storage medium, and control device ) 是由 李萍 张朋 王涛 于 2021-07-29 设计创作，主要内容包括：本发明涉及家电的烤箱领域,旨在至少一定程度地解决由于待烘焙的食材在搁置至搁架时出现的偏置而导致待烘焙的食材可能因此产生烘焙不均匀的技术问题,或者解决该技术问题中的一部分(如偏置包括很多种情形,本发明只关注其中的一部分)。为此目的,本发明提供了一种烤箱的控制方法、计算机可读存储介质、控制装置,其中的烤箱包括风机罩和搁架,所述风机罩具有出风区域,控制方法包括：检测待烘焙的食材在所述搁架上是否处于偏置状态；在处于偏置状态的情形下,至少关闭所述出风区域的一部分,以便：至少一定程度地抑制由于所述偏置状态导致待烘焙的食材烘焙不均匀。通过这样的设置,能够谋求使处于偏置状态的食材得到均匀的烘焙。(The present invention relates to the field of ovens for household appliances, aimed at solving, at least to some extent, the technical problem that the material to be baked may therefore produce an uneven baking due to the offset that occurs when it is rested on a shelf, or part of this technical problem (if the offset includes many cases, the present invention only concerns part of it). To this end, the invention provides a control method, a computer readable storage medium and a control device of an oven, wherein the oven comprises a fan cover and a shelf, the fan cover is provided with an air outlet area, and the control method comprises the following steps: detecting whether food materials to be baked are in a biased state on the shelf or not; under the condition of being in the biasing state, close a part at least in the air-out region to: uneven baking of the food material to be baked due to said biased state is suppressed at least to a certain extent. By such an arrangement, the food material in the offset state can be baked uniformly.)

1. A method of controlling an oven including a fan guard having an air exit region and a shelf, the method comprising:

detecting whether food materials to be baked are in a biased state on the shelf or not;

under the condition of being in the biasing state, close a part at least in the air-out region to:

uneven baking of the food material to be baked due to said biased state is suppressed at least to a certain extent.

2. The method of claim 1, wherein said turning off at least a portion of said outlet area comprises:

and closing a part of the air outlet area, and adjusting the air outlet direction of at least a part of the air outlet area in the opening state.

3. The control method of the oven according to claim 1 or 2, wherein the fan cover has an air inlet region, the air inlet region is provided with a fan, the air outlet region comprises a plurality of air outlet points, and the fan cover closes at least a part of the air outlet region under the bias condition so as to: suppressing, at least to some extent, the uneven baking of the food material to be baked due to the biased state "comprises:

under the situation of being in the bias state, according to the detail of the bias state, choose the air-out point that needs to switch to the closed state from the multiple air-out points to:

based on this selection, uneven baking of the food material to be baked due to the biased state is suppressed at least to some extent.

4. The control method of the oven according to claim 3, characterized in that the air outlet point which needs to be switched to the closed state is selected from the plurality of air outlet points according to the details of the bias state, so as to: based on the selection, in the step of suppressing the uneven baking of the food material to be baked at least to a certain extent due to the bias state, the rule selected comprises:

the more serious the bias state is, the more the number of the selected air outlet points which need to be switched to the closed state is increased and/or the position of the air outlet point is closer to the fan.

5. The control method of an oven of claim 3, wherein said fan guard includes a first portion and a second portion disposed left and right,

the first portion and the second portion form the air inlet region at a position corresponding to a substantially middle portion of the fan guard, the first portion and the second portion form the air outlet region at a position surrounding the air inlet region,

the said "under the bias condition, close a part of the said wind-out area at least, in order to: suppressing, at least to some extent, the uneven baking of the food material to be baked due to the biased state "comprises:

in the biased state, at least a portion of the outlet area on one of the first and second portions is closed when the food material to be baked is biased in a manner that a greater proportion thereof is on the other of the first and second portions.

6. The control method of an oven according to claim 3, characterized in that the control method comprises:

and under the condition of the bias state, reducing the running speed of the fan in a first setting mode.

7. The control method of an oven according to claim 6, characterized in that the control method comprises:

and under the condition of being in the bias state, increasing the running time of the fan in a second setting mode.

8. A computer readable storage medium, characterized in that the storage medium is adapted to store a plurality of program codes, said program codes being adapted to be loaded and run by a processor to perform the control method of the oven according to any one of claims 1 to 7.

9. Control device, characterized in that it comprises a memory and a processor, said memory being adapted to store a plurality of program codes, said program codes being adapted to be loaded and run by said processor to perform the control method of the oven according to any one of claims 1 to 7.

10. A control device, characterized in that it comprises a control module configured to perform the control method of an oven according to any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of ovens, in particular to an oven control method, a computer readable storage medium and a control device.

Background

Ovens are a relatively common type of cooking equipment. The cooking process of the oven is generally that a grill, which may be a rotatable movable structure or a fixed structure such as a shelf, is installed in the cavity of the inner container of the oven. Taking the shelf as an example, after the food material to be baked is placed on the shelf, the air in the cavity of the inner container where the food material is located can be heated by starting a heating mechanism such as electric heating. The surface of the food material is heated as required through the air carrying heat (if the circulation speed, the air temperature, the heating time and the like of the air can be controlled), and the baking of the food material can be realized.

Still taking the shelf as an example, assuming that the food material is reasonably placed at a position approximately in the middle of the shelf, the food material can be heated uniformly at each part as desired. When the food materials are not placed correctly, the problem of uneven baking of the food materials can exist. If the food material is biased to a certain extent, the baking effect of the food material is affected by different degrees if the heat is still supplied according to the original requirement for uniform baking, such as uneven baking.

Accordingly, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

Technical problem

The present invention has been made in order to solve, at least to some extent, the above technical problems (which may result in uneven baking of food material due to the offset of the food material to be baked when resting) or some of the above technical problems of the prior art.

Technical scheme

In view of the above, an aspect of the present invention provides a control method for an oven, the oven including a fan guard and a rack, the fan guard having an air outlet area, the control method including: detecting whether food materials to be baked are in a biased state on the shelf or not; under the condition of being in the biasing state, close a part at least in the air-out region to: uneven baking of the food material to be baked due to said biased state is suppressed at least to a certain extent.

By such an arrangement, the food material in the offset state can be baked uniformly.

Specifically, the distribution details of the hot air are re-planned by partially closing the air outlet area. Based on this planning, the food material to be baked in the biased state can still be baked uniformly.

It is understood that, on the premise that the partial closing of the air outlet region can suppress uneven baking of the food material to be baked due to the offset state, a person skilled in the art can determine the area, the orientation, and the like of the closed air outlet region according to actual conditions.

In the invention, the air outlet region needs to be configured in a (partially) closable structural form. Obviously, a person skilled in the art can determine the specific way of opening or closing the air outlet region according to the actual situation. For example, if the air outlet region includes a plurality of air outlet points, the air outlet region is configured with a slidable baffle, and one or more of the plurality of air outlet points can be shielded along with the sliding of the baffle.

With respect to the above-mentioned oven control method, in a possible embodiment, the "closing at least a portion of the air outlet area" includes: and closing a part of the air outlet area, and adjusting the air outlet direction of at least a part of the air outlet area in the opening state.

By such an arrangement, it is possible to more flexibly and uniformly bake the food in the offset state. In particular, by a combination of closing and adjusting means, the aim is to be able to suppress to some extent the uneven baking of the food material to be baked due to said biased state.

It can be understood that, a person skilled in the art can determine the specific form of the change of the air outlet direction according to the actual situation. If still use aforementioned air-out region to include a plurality of air-out points as an example, can be: the air outlet points at some important positions are provided with a plurality of adjustable air outlet directions, and one of the adjustable air outlet directions can be selected as the current air outlet direction. If have a plurality of air-out direction's of adjustable realization form: the air outlet points of some important positions are provided with the guide plate, and the air outlet direction can be changed along with the rotation of the guide plate relative to the fan cover.

In a possible embodiment of the above control method for an oven, the outlet area includes a plurality of outlet points, and the "in a biased state, at least a part of the outlet area is closed, so as to: suppressing, at least to some extent, the uneven baking of the food material to be baked due to the biased state "comprises: under the situation of being in the bias state, according to the detail of the bias state, choose the air-out point that needs to switch to the closed state from the multiple air-out points to: based on this selection, uneven baking of the food material to be baked due to the biased state is suppressed at least to some extent.

By such an arrangement, it is possible to seek to ensure that the material in the biased state can be baked uniformly based on the selection corresponding to the details of the biased state. In particular, by formulating a selection rule corresponding to the details of the bias state, the aim of suppressing the uneven baking of the food material to be baked due to the bias state to some extent has been achieved.

With regard to the control method of the oven, in a possible implementation manner, the fan cover is provided with an air inlet area, the air inlet area is provided with a fan, and "according to the details of the bias state, the air outlet point needing to be switched to the off state is selected from the air outlet points, so as to: based on the selection, in the step of suppressing the uneven baking of the food material to be baked at least to a certain extent due to the bias state, the rule selected comprises: the more serious the bias state is, the more the number of the selected air outlet points which need to be switched to the closed state is increased and/or the position of the air outlet point is closer to the fan.

By this arrangement, a particular form of the selected rule is given.

Specifically, the air outlet amount closer to the air outlet point of the fan is larger than that of other air outlet points. The air outlet quantity can be reduced under the large trend by reducing the number of the air outlet points. Therefore, both factors can be used as a reference mechanism for constructing conditions for selecting the air outlet point which needs to be switched to the closed state. One skilled in the art can select one or two of them to achieve the construction of the conditions. Thus, the air outlet point which needs to be switched to the closed state can be selected according to the severity of the offset state, and uneven baking caused by offset of the food materials can be restrained based on the selection.

With regard to the control method of the oven, in one possible embodiment, the fan guard includes a first portion and a second portion that are arranged left and right, the first portion and the second portion form the air inlet region at a position corresponding to a substantial middle portion of the fan guard, the first portion and the second portion form the air outlet region at a position surrounding the air inlet region, and the "in a biased state, at least a part of the air outlet region is closed, so that: suppressing, at least to some extent, the uneven baking of the food material to be baked due to the biased state "comprises: in the biased state, at least a portion of the outlet area on one of the first and second portions is closed when the food material to be baked is biased in a manner that a greater proportion thereof is on the other of the first and second portions.

By such an arrangement, a closing tendency of the wind outlet region corresponding to the left-right offset is given.

With respect to the above-mentioned control method of the oven, in one possible embodiment, the control method comprises: and under the condition of the bias state, reducing the running speed of the fan in a first setting mode.

By such an arrangement, it is avoided by the reduction of the operating speed of the fan that heat is given off too intensively to the offset part due to the wind outlet area being at least partly closed. Therefore, the operation of the fan can be matched with the air outlet area after at least one part of the fan is closed, and the baking effect is ensured.

It is understood that the specific form of the first setting mode, such as stepped inter-partition reduction or continuous reduction, can be determined by those skilled in the art according to actual requirements.

With respect to the above-mentioned control method of the oven, in one possible embodiment, the control method comprises: and under the condition of being in the bias state, increasing the running time of the fan in a second setting mode.

Through the arrangement, the situation that the food materials are not sufficiently baked due to the fact that the air outlet area is at least partially closed and the operation speed of the fan is reduced is avoided through the increase of the operation time of the fan. Therefore, on the premise that the operating speed of the fan is matched with the air outlet area with at least one part of the air outlet area being closed, the food material to be baked is fully baked, and finally the baking performance of the oven is guaranteed.

It will be appreciated that the skilled person can determine the specific form of the second setting according to actual requirements, such as adding a fixed time period or adding a more variable time period in a calculated manner adapted to specific roasting details.

A second aspect of the present invention provides a computer readable storage medium adapted to store a plurality of program codes, the program codes adapted to be loaded and executed by a processor to perform the control method of the oven according to any one of the preceding claims.

It is understood that the computer readable storage medium has all the technical effects of the control method of the oven described in any one of the foregoing, and thus, the detailed description thereof is omitted.

It will be understood by those skilled in the art that all or part of the flow of the control method of the oven of the present invention may be implemented by the relevant hardware instructed by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-described method embodiments may be implemented. Wherein the computer program comprises computer program code, it is understood that the program code comprises, but is not limited to, program code for performing the above-described oven control method. For convenience of explanation, only portions relevant to the present invention are shown. The computer program code may be in source code form, object code form, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying said computer program code, media, usb disk, removable hard disk, magnetic diskette, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunication signals, software distribution media, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

A third aspect of the present invention provides a control apparatus comprising a memory and a processor, the memory being adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to perform a method of controlling an oven as claimed in any one of the preceding claims.

It can be understood that the control device has all the technical effects of any one of the above-mentioned oven control methods, and the details are not repeated herein. The control device may be a control device apparatus formed including various electronic apparatuses.

A fourth aspect of the present invention provides a control apparatus comprising a control module configured to perform the control method of the oven of any one of the preceding claims.

It can be understood that the control device has all the technical effects of any one of the above-mentioned oven control methods, and the details are not repeated herein.

In the description of the present invention, a "control module" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, may comprise software components such as program code, or may be a combination of software and hardware. The processor may be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and/or signal processing functionality. The processor may be implemented in software, hardware, or a combination thereof. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random-access memory, and the like.

Further, it should be understood that, since the setting of the control module is only for explaining the functional units in the system corresponding to the control method of the oven of the present invention, the physical device corresponding to the control module may be the processor itself, or a part of software in the processor, a part of hardware, or a part of a combination of software and hardware. Thus, the number of control modules is only exemplary. Those skilled in the art will appreciate that the control module may be adaptively split according to the actual situation. The specific splitting of the control module does not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solution after splitting will fall into the protection scope of the present invention.

Drawings

The control method of the oven of the present invention will be described with reference to the accompanying drawings in conjunction with the left offset case. In the drawings:

FIG. 1 illustrates a schematic structural view of an oven of one embodiment of the present invention showing a fan guard and fan;

FIG. 2 shows a schematic structural view of a hood in an oven according to an embodiment of the present invention; and

fig. 3 is a flowchart illustrating a control method of an oven according to an embodiment of the present invention.

List of reference numerals:

1. a fan guard; 11. a first portion; 12. a second portion; 2. an air intake area; 31. a motor; 32. a fan; 411. a first upper transverse air outlet area; 412. a first lower transverse air outlet area; 413. a first upper longitudinal air outlet area; 414. a first lower longitudinal air outlet area; 421. a second upper transverse air outlet area; 422. a second lower transverse air outlet area; 423. a second upper longitudinal air outlet area; 424. and a second lower longitudinal air outlet area.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, while the present embodiment is described in connection with left-biased, adjustable fan clockwise rotation only, this is not intended to limit the scope of the invention, which may be applied to other application scenarios by those skilled in the art without departing from the principles of the present invention. For example, it is apparent that both left and right offsets can be adjusted based on the same theory. In addition, on the premise of considering cost factors less, the fan can be adjusted aiming at food material offset when rotating clockwise and anticlockwise.

It should be noted that in the description of the present invention, the term "a and/or B" indicates all possible combinations of a and B, such as a alone, B alone, or a and B. The term "at least one A or B" or "at least one of A and B" means similar to "A and/or B" and may include only A, only B, or both A and B. The singular forms "a", "an" and "the" may include the plural forms as well. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, while numerous specific details are set forth in the following description in order to provide a better understanding of the invention, it will be apparent to those skilled in the art that the invention may be practiced without some of these specific details. In some instances, cooktop principles and the like well known to those skilled in the art have not been described in detail in order to highlight the subject matter of the invention.

Referring to fig. 1 and 2, fig. 1 illustrates a schematic structural view of an oven according to an embodiment of the present invention, and fig. 2 illustrates a schematic structural view of a hood in an oven according to an embodiment of the present invention. As shown in fig. 1 and 2, a back plate is disposed on one side (e.g., a back side) of the inner container disposed on a side (e.g., a back side) away from an operation side of the inner container (e.g., the operation side is a side facing a user and may be generally referred to as a front side) of the inner container, a fan cover 1 is mounted on the back plate, the fan cover includes a first portion 11 and a second portion 12 disposed left and right, the first portion and the second portion form an air inlet region 2 at a position corresponding to a middle portion of the fan cover, an outer edge of a cover body of the fan cover has an air outlet region, and the air outlet region is disposed in a manner of surrounding the air inlet region so as to more uniformly distribute air carrying heat to a surface of food material, thereby cooking the food material to be baked.

Wherein, the air intake area is provided with a fan, and the fan comprises a driving motor 31 and a fan 32. The motor rotates the drive fan and is rotatory in the position towards the air inlet region, and the air current in the inner bag can be stirred in the rotation of fan, but the fan of just reversing, so, the fan can be in treating of fan and move down clockwise or anticlockwise (observe along user's visual angle) rotatory to thereby the temperature of the inside air of inner bag of messenger's oven is even to be realized coloring evenly. In a possible embodiment, the fan comprises a fan disc, the disc surface of the fan disc is of a closed structure, a plurality of fan blades are distributed on the disc surface at one side close to the air inlet area along the circumferential direction of the disc surface, and the inclination angles of the fan blades are approximately the same (such as 20-25 degrees), so that the working stability of the fan is ensured. The center of the fan tray substantially coincides with the center of the fan guard.

The air outlet region includes a first air outlet region disposed on the first portion and a second air outlet region disposed on the second portion, and the first air outlet region includes two first horizontal regions (respectively referred to as a first upper horizontal air outlet region 411 and a first lower horizontal air outlet region 412) disposed up and down and at least one first longitudinal air outlet region at the left side edge, for example, in this embodiment, the first longitudinal air outlet region includes two regions disposed along the vertical direction, and respectively referred to as a first upper longitudinal air outlet region 413 and a first lower longitudinal air outlet region 414. The second air outlet region includes two second horizontal air outlet regions (respectively referred to as a second upper horizontal air outlet region 421 and a second lower horizontal air outlet region 422) arranged up and down and at least one second longitudinal air outlet region at the right edge. As in the present embodiment, similar to the first longitudinal wind outlet region, the second longitudinal wind outlet region includes two wind outlet regions arranged along the vertical direction, which are respectively referred to as a second upper longitudinal wind outlet region 423 and a second lower longitudinal wind outlet region 424. Illustratively, the first portion and the second portion are symmetrical structures.

The fan guard is also provided with a heating element (not shown) on the basis of which heat can be generated that can be supplied to the air. Therefore, under the action of the fan, hot air enters the oven from the air inlet in the middle and is heated, and then is distributed to the surface of the food material to be baked in a peripheral diffusion mode through each air outlet area, so that the uniformity of temperature fields at all positions of the inner container is ensured as far as possible. Therefore, when the food materials are baked, the coloring can be guaranteed to be uniform, the baking quality is guaranteed, and the user experience is improved. Illustratively, the heating element is a three-layer spiral heating pipe, the temperature of the heating pipe is controlled through PID operation so as to control the temperature in the inner container cavity of the oven, and the inner container is guaranteed to be constant in temperature or variable in temperature according to the actual baking requirement. Based on this, heat can be supplied strictly to the specific baking requirements.

In a specific embodiment, the air inlet region, the first/second (upper and lower) transverse air outlet region, and the first/second (upper and lower) longitudinal air outlet region each include a plurality of air outlet holes. Exemplarily, the air inlet region includes a plurality of grid holes forming a disc-shaped region, the first/second upper transverse air outlet region includes 7 single-row round holes arranged from left to right, the first/second lower transverse air outlet region includes 6 single-row round holes arranged from left to right, the first/second longitudinal air outlet region includes 8 single-row round holes, the first upper longitudinal air outlet region includes 5 single-row round holes, and the first lower longitudinal air outlet region includes 3 single-row round holes.

It can be understood that, according to actual needs, those skilled in the art can flexibly adjust the specific configuration of the air inlet region, the first/second (upper and lower) transverse air outlet region, the first/second (upper and lower) longitudinal air outlet region, and the arrangement position of the first/second (upper and lower) longitudinal air outlet region on the fan guard. Such as may be: the first/second (upper and lower) (horizontal and longitudinal) air outlet regions comprise a plurality of air outlet regions, adjacent parts in the first/second (upper and lower) (horizontal and longitudinal) air outlet regions are changed into continuous arrangement (combination) from interval arrangement, the number of the round holes of the first/second upper horizontal air outlet region and the first/second lower horizontal air outlet region is the same, the first/second (upper and lower) (horizontal and longitudinal) air outlet regions are arranged into a plurality of rows of round holes, the distribution density of the round holes is adjusted, and the round holes are changed into other structures such as square holes, strip-shaped holes and the like.

Assuming that the food material to be baked is resting after the shelf, such baking control should theoretically be carried out: each air outlet area uniformly distributes heat to the food materials to be baked so as to ensure the baking level. However, it is possible that: the food material is not placed at the position approximately in the middle of the shelf, and the phenomenon of being deviated to the left or the right (taking the deviation to the left as an example) occurs. At this time, the heat should be more distributed to the area close to the food material, i.e. the heat distribution should be properly "left-shifted", or the baking effect obtained based on the heat distribution scheme should be equivalent to the aforementioned "left-shifted" effect. In other words, even if the problem of offset occurs when the food material is resting, substantially the same effect should be obtained as the roasting effect when the food material is resting to a position substantially in the middle on the shelf.

In a specific embodiment, there is generally no problem of offset due to the resting of the food material. Specifically, on the one hand, in the case of a full tray of food material, it is generally considered that there is no problem of offset. On the other hand, in some cases, even if the tray is not full, the food can be placed at a position where there is no problem of the offset. Therefore, the inventor carries out reasonable layout on related factors such as fan blades, pipelines and air outlets related to the baking effect at the early debugging stage of the product: so that when the fan is rotated counterclockwise, the heat is always delivered in a more steady state and such steady state is sufficient to handle the various baking needs without the bias problem. Thus, the fan can be always rotated counterclockwise without the offset problem. The fan is switched to a clockwise rotation only in case of an offset problem.

It will be appreciated that such a processing is given based on cost considerations. It is understood that both clockwise and counterclockwise operation forms may be set to have the same quality, so that in case of an offset problem, one of the operation forms may be selected first, and then the corresponding control is performed. Or the following steps: the two operation modes are associated with each other to a certain degree, and the two operation modes are cooperated to meet the baking requirement of the food materials with the food material bias problem. Under the precondition, still taking the bias of the food material to be baked as an example, the invention provides a control method of an oven, which can effectively inhibit the phenomenon of poor baking effect caused by the given fact that the food material to be baked is placed on the left.

Referring to fig. 3, fig. 3 is a flowchart illustrating a control method of an oven according to an embodiment of the present invention. As shown in fig. 3, the control method of the present invention mainly includes the following steps:

s301, detecting whether the food material to be baked is in a biased state biased leftwards.

If yes, the process goes to S303;

if not, the fan is rotated anticlockwise, and the food materials are baked according to the selected baking program on the basis. Such as baking program comprising temperature-dependent operating parameters of the heating tube, the operating speed of the motor, the baking time period, etc.

S303, enabling the fan to rotate clockwise, and adjusting the following two aspects according to the details of the bias state of the food material biased leftwards:

in a first aspect: closing at least a part of the air-out area according to the details of the biased state of the food material biased to the left;

in the second aspect, the operating speed of the fan is appropriately adjusted to be lower in accordance with the partial closing of the air outlet region.

The food material to be baked is regarded as a mass point, and the mass point is in an ideal unbiased state when coinciding with the center of the air inlet area, and is called as 0% offset; when viewed from the left and right through the center, the mass point is at the extreme position of the leftmost side, which is called 100% offset; when the particle is at the middle of the extreme position and the center, the particle is called 50% offset; the particle is at the middle position and the middle of the center, which is called 25% offset. Assuming that the motor is operated at a speed T under a state of 0% offset₀. It will be understood that, given the various operating speeds involved in the roasting program itself, at the corresponding instant, here T₀Interpreted as any operating speed contained in the program. In other words, T here₀And is not only a value in the mathematical sense but is to be understood as a reference parameter, such as a value or a reference function.

In a preferred example, the specific details of the first and second aspects described above include:

1) if the detail of the bias state is 0-25% bias, closing two round holes close to the right in the second (upper and lower) transverse air outlet area, and adjusting the running speed of the fan to 85% T₀。

2) If the detail of the bias state is 25-50% bias, closing four round holes in the second (upper and lower) transverse air outlet area, wherein the four round holes are specifically: four circular holes except the leftmost circular hole and the rightmost circular hole, and the operation speed of the fan is adjusted to 65% T₀。

3) If the detail of the bias state is 50-100% bias (since the event of 100% bias is a small probability event, 100% can be replaced by a certain high value (e.g. 75%), at this time, the interval is changed to 50-75%), the four left circular holes in the second (upper and lower) transverse air outlet area are closed, and the operation speed of the fan is adjusted to 50% T₀。

Based on such an arrangement, the food material of the first portion resting on the left side can obtain a relatively large amount of heat compared to the non-biased state. In this way, the heat quantity is shifted to the left by reducing the heat quantity of the second portion on the right to some extent. The left shift may cause the food material on the left side to be excessively heated to some extent while considering the bias factor, so that the operation speed of the fan needs to be reduced to some extent to ensure the baking effect.

Due to the fact that the operation speed of the fan is reduced, the heat obtained by the food material under the circumstance of the circular ratio is reduced, and therefore on the premise that the bias factor is considered and the baking effect is guaranteed, in order to guarantee that the food material can be baked to reach the standard finished product (such as 100% of well done), the baking time is increased. The specific increased baking time period can be determined according to actual conditions, and is not limited to be of little significance.

It can be seen that, in the control method of the oven of the present invention, when the food material to be baked on the shelf is placed in a manner biased to the left or to the right, the rotation direction and the operation speed of the fan (motor) and the arrangement of the air outlet region can be differentially controlled, so that even local portions of the surface of the food material can be guaranteed to be baked when the food material to be baked is placed in a manner biased to the left or to the right, thereby optimizing the use performance of the oven.

It should be noted that, although the foregoing embodiments describe each step in a specific sequence, those skilled in the art may understand that, in order to achieve the effect of the present invention, different steps do not have to be executed in such a sequence, and may be executed simultaneously or in other sequences, and some steps may be added, replaced or omitted, and these changes are within the protection scope of the present invention.

It should be noted that, although the control method configured in the above-described specific manner is described as an example, those skilled in the art will appreciate that the present invention should not be limited thereto. In fact, the user can flexibly adjust the relevant steps and the elements such as parameters in the steps according to the situation such as the actual application scene, etc., such as: the selection of the round holes can be embodied only by the difference of the number; besides the transverse air outlet area, a circular hole and the like can be selected in the longitudinal air outlet area.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.