CN111493703A - Control method for rice storage device and rice storage device - Google Patents
Control method for rice storage device and rice storage device Download PDFInfo
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- CN111493703A CN111493703A CN201911413256.4A CN201911413256A CN111493703A CN 111493703 A CN111493703 A CN 111493703A CN 201911413256 A CN201911413256 A CN 201911413256A CN 111493703 A CN111493703 A CN 111493703A
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- accommodating space
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J47/00—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread
- A47J47/02—Closed containers for foodstuffs
- A47J47/04—Closed containers for foodstuffs for granulated foodstuffs
- A47J47/06—Closed containers for foodstuffs for granulated foodstuffs with arrangements for keeping fresh
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Automation & Control Theory (AREA)
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Abstract
The invention provides a control method for a rice storage device and the rice storage device. The rice storage device is provided with an accommodating space for storing food materials, a pressure reducing device for reducing the pressure of the accommodating space, and a detection device for detecting the working parameters of the pressure reducing device, and the control method comprises the following steps: acquiring a preset pressure of the accommodating space input by a user; controlling the pressure reducing device to exhaust the accommodating space; the method comprises the steps of acquiring working parameters of a pressure reducing device in real time, judging whether the pressure in an accommodating space reaches a preset pressure or not according to the working parameters and a preset rule, and controlling the pressure reducing device to stop air extraction if the pressure in the accommodating space reaches the preset pressure, wherein the preset rule comprises alternative pressures, corresponding relations and prestored working parameters, and the preset pressure is selected from the alternative pressures. From this, need not set up pressure measurement, can simplify the structure of storing up a meter device, reduce the manufacturing cost who stores up a meter device, improve the price/performance ratio of storing up a meter device, promote user's use and experience.
Description
Technical Field
The present invention relates generally to the technical field of kitchen appliances, and more particularly, to a control method for a rice storage device and a rice storage device.
Background
The existing rice bucket for storing and using rice is usually made of a plastic or metal container, a part of the rice bucket is also provided with a mechanical rice dropping device in a matching way so as to be convenient for a user to take rice, but the function of keeping the rice bucket fresh and storing the rice is rarely involved.
Since the storage capacity of the rice bucket is generally larger, for example, 5kg, 10kg and the like, when rice is stored in a fresh-keeping way, the inventor considers that the vacuum fresh-keeping is a relatively easy way to realize. However, when the pressure detection device is used for detecting the pressure in the rice bucket, the complexity of the structure of the rice bucket can be increased, and meanwhile, the manufacturing cost of the rice bucket is improved, so that the cost performance of the rice bucket is reduced, and the experience of a user can be reduced.
Therefore, there is a need to provide a control method for a rice storage device and a rice storage device to at least partially solve the above problems.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above-mentioned problems, according to a first aspect of the present invention, there is provided a control method for a rice storage apparatus having an accommodating space for storing food materials, a pressure reducing apparatus for reducing a pressure of the accommodating space, and a detecting apparatus for detecting an operating parameter of the pressure reducing apparatus, the control method comprising:
acquiring a predetermined pressure of the accommodating space input by a user;
controlling the pressure reducing device to exhaust the accommodating space so as to reduce the pressure of the accommodating space;
the method comprises the steps of obtaining working parameters of the pressure reducing device in real time, judging whether the pressure in the containing space reaches the preset pressure or not according to the working parameters and preset rules, and controlling the pressure reducing device to stop air extraction if the pressure in the containing space reaches the preset pressure, wherein the preset rules comprise alternative pressures, corresponding relations and prestored working parameters, the corresponding relations are used for representing corresponding relations between the alternative pressures and the prestored working parameters, and the preset pressure is selected from the alternative pressures.
Therefore, according to the control method for the rice storage device, the containing space in which the food materials are stored can be subjected to air extraction through the pressure reducing device so as to reduce the pressure in the containing space, the working parameters of the pressure reducing device can be obtained in real time through the detection device, then the pressure in the containing space is judged according to the working parameters and the preset rules, and when the pressure in the containing space reaches the preset pressure, the air extraction can be stopped. Through the control method, the pressure in the accommodating space can be judged according to the working parameters of the pressure reducing device, a pressure detection device is not required to be arranged, the structure of the rice storage device can be simplified, the production cost of the rice storage device is reduced, the cost performance of the rice storage device is improved, and the use experience of a user is improved.
Preferably, the working parameter is a working current of the pressure reducer, the prestored working parameter in the preset rule is a prestored working current, and the corresponding relationship is used for representing a corresponding relationship between the alternative pressure and the prestored working current;
and when the working current of the pressure reducing device is equal to the pre-stored working current corresponding to the alternative pressure, controlling the pressure reducing device to stop air extraction.
Therefore, the pressure in the accommodating space can be judged by acquiring the working current of the pressure reducing device in real time, and when the pressure in the accommodating space reaches the preset pressure through the working current, the air exhaust operation can be stopped.
Preferably, the establishing of the preset rule comprises:
recording real-time working current of the pressure reducing device and real-time pressure in the accommodating space corresponding to the real-time working current in the air extraction operation process in advance, and establishing a corresponding relation between the real-time working current and the real-time pressure to form the corresponding relation of the preset rule.
Thus, the correspondence relationship of the preset rule can be determined in advance by determining the correspondence relationship between the real-time operating current of the pressure reducing device and the real-time pressure in the accommodating space.
Preferably, the working parameter is a working duration of the pressure reducing device, the prestored working parameter in the preset rule is an alternative working duration, and the corresponding relationship is used for representing a corresponding relationship between the alternative pressure and the alternative working duration;
and when the working time of the pressure reducing device is equal to the alternative working time corresponding to the alternative pressure, controlling the pressure reducing device to stop air extraction.
Therefore, in order to reach the preset pressure, the working time corresponding to the operation of the pressure reducing device can be directly controlled, namely, the pre-stored working time corresponding to the alternative pressure is operated, and when the pressure in the accommodating space reaches the preset pressure, the air suction operation can be stopped.
Preferably, the establishing of the preset rule comprises:
recording in advance a first real-time pressure of the accommodating space when the pressure reducing device operates for different working hours during the air-extracting operation, in a case where the amount of rice in the accommodating space is a first amount of rice; and recording in advance a second real-time pressure of the accommodating space when the pressure reducing device operates for the different working time periods in the air extraction process under the condition that the amount of rice in the accommodating space is a second amount of rice larger than the first amount of rice;
calculating the average pressure of the first real-time pressure and the second real-time pressure when the different working time lengths are reached, and establishing the corresponding relation between the average pressure and the different working time lengths to form the corresponding relation of the preset rule, wherein the different working time lengths are recorded as the alternative working time lengths.
Thus, the correspondence of the preset rule can be determined in advance by determining the correspondence between different operating periods of the decompression device and the average pressure of the accommodation space at the different operating periods.
Preferably, the second meter amount is a maximum meter amount that the accommodating space can store.
Therefore, the second rice quantity corresponding to the rice storage device can be determined according to different specifications of the rice storage device, and the corresponding relation of the preset rule can be obtained more accurately.
Preferably, the alternative operating time period is in the range of 5 to 120 seconds.
Therefore, the working time length of the decompression device corresponding to the standard of different rice storage devices can be determined.
According to a second aspect of the present invention, there is provided a rice storage device comprising:
a food material accommodating unit configured as a box body having a certain accommodating space;
the pressure reducing device is used for exhausting air to the food material containing unit when the food material containing unit is closed so that the pressure in the food material containing unit reaches a preset pressure;
the detection device is used for detecting working parameters of the pressure reducing device; and
a control device electrically connected with the pressure reducing device and the detection device,
wherein the control device is configured to control the rice storage device to perform the steps of the control method according to the first aspect of the invention.
Therefore, according to the rice storage device, the containing space in which the food materials are stored can be subjected to air extraction through the pressure reducing device to reduce the pressure in the containing space, the working parameters of the pressure reducing device can be obtained in real time through the detection device, then the pressure in the containing space is judged through the control device according to the working parameters and the preset rules, and when the pressure in the containing space reaches the preset pressure, the air extraction can be stopped. Through the control method, the pressure in the accommodating space can be judged according to the working parameters of the pressure reducing device, a pressure detection device is not required to be arranged, the structure of the rice storage device can be simplified, the production cost of the rice storage device is reduced, the cost performance of the rice storage device is improved, and the use experience of a user is improved.
Drawings
The following drawings of embodiments of the invention are included as part of the present invention for an understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
In the drawings, there is shown in the drawings,
fig. 1 is a schematic view showing the overall construction of a rice storage apparatus according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a control method for a rice storage apparatus according to an embodiment of the present invention;
fig. 3 is a sectional view of a rice storage device according to an embodiment of the present invention;
an enlarged view of portion a of fig. 3 in fig. 4; and
fig. 5 is a schematic view of a structure of a carrying case in the rice storage apparatus shown in fig. 3.
Description of reference numerals:
100: the rice storage device 110: food material containing unit
111: cover body 112: rice outlet
120: the carrying case 130: pressure reducing device
140: food material distribution unit 141: dispensing chamber
142: the distribution motor 143: transmission mechanism
144: food material containing chamber 145: rice dropping port
150: food material receiving unit
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.
Hereinafter, a control method for a rice storage device and the rice storage device 100 according to the present invention will be described in detail with reference to fig. 1 to 5. In one embodiment according to the present invention, there is provided a rice storage apparatus 100, as shown in fig. 1 to 5, the rice storage apparatus 100 including an ingredient accommodating unit 110, a carrying box 120, a decompression apparatus 130, a detection apparatus (not shown), and a control apparatus.
The food material accommodating unit 110 is configured as a box having a certain accommodating space, and the accommodating space can be used for accommodating food materials to be stored, such as granular food materials like rice. However, it is understood that in other embodiments, the food material accommodating unit 110 may store fruits or vegetables, etc., and accordingly, the rice storage device 100 may be referred to as a food material storage device. Exemplarily, the receiving space may be provided with a large volume such that it may store 5kg to 10kg of food material. The top of the food material accommodating unit 110 is provided with a cover 111, and the cover 111 can cover the food material accommodating unit 110 and can be hermetically connected with the food material accommodating unit 110. When the food material is placed in the food material accommodating unit 110, the covered cover 111 can protect the stored food material.
The carrier case 120 serves to support and fix the food material accommodating unit 110, and the food material accommodating unit 110 is disposed in the carrier case 120. The decompression device 130 and the detection device are both provided in the carrying case 120. The pressure reducing device 130 may include a vacuum pump, an air inlet of which is communicated with the accommodating space of the food material accommodating unit 110 through an air exhaust pipe made of, for example, a silica gel material, and an air outlet of which is communicated with the external environment of the accommodating space, for example, with the external air. When negative pressure state is formed in the accommodating space, the accommodating space can be pumped by utilizing the vacuum pump to reduce the pressure of the accommodating space, and when the vacuum pump stops working, the accommodating space forms the negative pressure state. A state in which the pressure in the accommodating space is lower than the atmospheric pressure may be referred to as a negative pressure state.
A detection device capable of detecting the operating parameters of the pressure reduction device 130 and a control device electrically connected to both the pressure reduction device 130 and the detection device are provided in the carrier case 120.
In the control method according to the present invention, the accommodating space of the rice storage device 100 can be brought to a degree of vacuum required by the user. Specifically, as shown in fig. 2, the control method includes:
s1: acquiring a predetermined pressure of the accommodating space input by a user;
for example, in order to make the accommodating space reach the vacuum degree required by the user, the accommodating space must be kept in a sealed state, in the present embodiment, after the cover 111 at the top of the food material accommodating unit 110 can be closed to the food material accommodating unit 110, the rice storage device 100 can obtain a closing signal of the rice storage device 100 by using a sensor or the like connected to the cover 111. In other embodiments, the user may be caused to manually initiate the freshness function.
Thereafter, the user inputs a predetermined pressure of the accommodating space to the rice storage device 100 according to the need, and thus, the user can input a predetermined pressure required by himself/herself since the specification of the rice storage device 100, the food materials stored in the rice storage device 100, the use environment of the rice storage device 100, and the like may be different.
S2: controlling the pressure reducing device to exhaust the accommodating space so as to reduce the pressure of the accommodating space;
illustratively, after the rice storage device 100 starts a freshness keeping process, the decompression device 130 in the rice storage device 100 starts an air suction operation of the accommodating space, thereby reducing the pressure in the accommodating space so as to reach a desired degree of vacuum.
S3: and acquiring working parameters of the pressure reducing device in real time, judging whether the pressure in the accommodating space reaches the preset pressure or not according to the working parameters and a preset rule, and controlling the pressure reducing device to stop pumping air if the pressure in the accommodating space reaches the preset pressure.
Illustratively, the detecting device can reduce the working parameters of the pressure device 130, the control device stores preset rules, and the rice storage device 100 can judge the pressure in the accommodating space according to the working parameters and the preset rules, so that the pressure device 130 can continuously pump the accommodating space to enable the accommodating space to reach the preset pressure.
In addition, as shown in S4 in fig. 2, the preset rule includes alternative pressures, corresponding relations and prestored working parameters, and in order to execute the control method, a database of the preset rule including alternative pressures, corresponding relations and prestored working parameters, which is referred to as a preset rule herein, may be established in advance, where the corresponding relations are used to represent the corresponding relations between the alternative pressures and the prestored working parameters, and the preset pressures can be selected from the alternative pressures. The rice storage device 100 can judge whether the pressure in the accommodating space reaches a predetermined pressure according to the operating parameters.
Specifically, in the control method according to the first embodiment of the present invention, the detection device is capable of detecting the working current of the pressure reducing device 130, the working parameter is the working current of the pressure reducing device 130, the pre-stored working parameter in the preset rule is a pre-stored working current, and the corresponding relationship is used to represent the corresponding relationship between the alternative pressure and the pre-stored working current.
In practical use, when the decompression device 130 performs the evacuation operation of the accommodation space, the higher the degree of vacuum of the accommodation space is, the smaller the flow rate in the decompression device 130 is, and at the same time, the larger the operating current of the decompression device 130 is. Therefore, the establishment of the preset rule in the present embodiment includes:
when the decompression device 130 performs the air extraction process on the accommodating space, the real-time working current of the decompression device 130 and the real-time pressure in the accommodating space corresponding to the real-time working current are recorded in advance, so that the corresponding relationship between the real-time working current and the real-time pressure is established to form the corresponding relationship of the preset rule.
Illustratively, the relationship between the real-time current of the pressure reducing device 130 and the real-time pressure corresponding thereto when the power of the pressure reducing device 130 is constant and the accommodating space is constant is shown in table 1 below.
TABLE 1
| Real-time current (mA) | 530 | 550 | 590 | 630 | 680 | 710 | 730 | 735 | 740 | 740 |
| Real time pressure (kPa) | 0 | -5 | -10 | -15 | -20 | -25 | -30 | -35 | -40 | -50 |
As can be seen from table 1 above, the real-time current of the pressure reducing device 130 increases as the real-time pressure in the accommodating space increases, for example, when the real-time pressure is 0kPa, the real-time current is 530 mA; when the real-time pressure is-5 kPa, the real-time current is 550 mA; when the real-time pressure is-20 kPa, the real-time current is 680 mA.
This allows the real-time pressure of the receiving space to be determined from the correspondence relationship by the real-time operating current of the pressure reducing device 130, without the need for providing a pressure detecting device.
In the second embodiment according to the present invention, the detecting device is capable of detecting the operation duration of the pressure reducing device 130, that is, the detected operation parameter is the operation duration of the pressure reducing device 130, the pre-stored operation parameter in the preset rule is the alternative operation duration, and the corresponding relationship is used to represent the corresponding relationship between the alternative pressure and the alternative operation duration.
In the actual use process, the amount of the food materials capable of being stored in the accommodating space is changed within a certain range, and the vacuum degree in the accommodating space is changed along with the change of the amount of the food materials, so that the vacuum degree of the accommodating space can be determined according to the amount of the food materials and the working time of the pressure reducing device 130. Therefore, the preset rule in this embodiment includes:
when the rice amount in the accommodating space is the first rice amount, recording a first real-time pressure of the accommodating space when the decompression device 130 operates at different working time lengths in advance during the process of performing air extraction treatment on the accommodating space by the decompression device 130; in addition, in the case where the amount of rice in the accommodating space is a second amount of rice greater than the first amount of rice, when the pressure reducing device 130 performs the air extraction process on the accommodating space, a first real-time pressure of the accommodating space when the pressure reducing device 130 operates at a different operating time is recorded in advance;
and calculating the average pressure of the first real-time pressure and the second real-time pressure reaching different working time lengths, and establishing the corresponding relation between the average pressure and different working time lengths, thereby forming the corresponding relation of a preset rule, wherein different working time lengths are recorded as alternative working time lengths. Wherein the different working time lengths are recorded as alternative working time lengths.
That is, the pressure reducing device 130 is used to perform the evacuation process of the accommodating space while recording a first real-time pressure in the accommodating space of a first meter and a second real-time pressure in the accommodating space of a second meter, respectively, when the pressure reducing device 130 operates for different operating periods, and then an average pressure of the first real-time pressure and the second real-time pressure is calculated and used as the pressure of the accommodating space when the pressure reducing device 130 operates for the different operating periods.
Preferably, the second amount of meters is a maximum amount of meters that the accommodating space can store.
For example, the relationship between different operating periods during which the pressure relief device 130 operates and the pressure in the receiving space with different meter amounts of the receiving space is shown in table 2 below.
TABLE 2
As can be seen from table 2 above, in the case of different rice amounts of 5KG and 10KG, when the rice amount in the accommodating space of the rice storage apparatus 100 is the first rice amount of 0.5KG and the maximum rice amount that can be accommodated, respectively, the pressure in the accommodating space is different at the same air-extracting time, and thus, it can be taken as the pressure of the accommodating space of the pressure reducing apparatus 130 at the operation air-extracting time by calculating the average pressure thereof.
Further, the rice storage device 100 in the present embodiment can store rice in an amount of 5kg to 10kg, the longer the decompression device 130 is maintained in operation, the higher the degree of vacuum in the accommodating space, however, the degree of vacuum in the accommodating space does not need to be excessively high when the storage is actually performed, and the alternative operation time period in the present embodiment is selected in the range of 5 to 120 seconds, preferably 10 to 60 seconds, in view of cost.
In a second aspect according to the present invention, there is also provided a rice storage apparatus 100, as shown in fig. 3 to 5, the rice storage apparatus 100 comprising the food material containing unit 110, the pressure reducing means 130, the detecting means in the above embodiments, and further comprising a control means (not shown), wherein the control means is configured to control the rice storage apparatus 100 to perform the control method in the above two embodiments.
Further, in the present rice storage device 100, a food material distribution unit 140 and a food material receiving unit 150 may be further provided in the carrying case 120.
Specifically, the food material accommodating unit 110 has a funnel-shaped bottom and has a rice outlet 112, the rice outlet 112 is configured as a funnel-shaped bottom outlet, the food material distribution unit 140 is disposed below the rice outlet 112 and is operable to receive rice from the rice outlet 112, and the food material receiving unit 150 is disposed below the food material distribution unit 140 and is operable to receive rice from the food material distribution unit 140. Preferably, the food receiving unit 150 may be a rice taking box provided in the rice storage device 100, which can be placed into the rice storage device 100 from the side along a predetermined track.
As shown in fig. 3 to 5, the food material dispensing unit 140 includes a dispensing chamber 141, a dispensing motor 142, and a transmission mechanism 143. Wherein, the distribution motor 142 and the transmission mechanism 143 are disposed in the distribution chamber 141, and the distribution motor 142 can drive the transmission mechanism 143 to rotate. The dispensing chamber 141 corresponds to the position of the rice outlet 112 and can receive the rice from the rice outlet 112. Further, the transmission mechanism 143 includes a plurality of dial plates provided coaxially with the dispensing motor 142, and when the dispensing motor 142 rotates, the dial plates can rotate within the dispensing chamber 141 around the rotation center of the dispensing motor 142 as an axis. The plurality of toggle plates can partition the distribution chamber 141 into a plurality of food material containing chambers 144, and rice in the rice outlet 112 can fall into one of the food material containing chambers 144.
The bottom of the distribution chamber 141 is provided with a rice drop opening 145 corresponding to the food material receiving unit 150. After the rice in the food material containing unit 110 falls into the food material containing chambers 144 through the rice outlet 112, the distribution motor 142 rotates and drives the stirring plate to rotate in the distribution chamber 141, the positions of the food material containing chambers 144 formed by the stirring plate rotate together with the stirring plate, and in the process that one food material containing chamber 144 sweeps over the rice outlet 145, the rice in the food material containing chamber 144 falls into the food material receiving unit 150 through the rice outlet 145. Then, the user can take out the food receiving unit 150 to obtain the required rice.
Specifically, during the rotation of the distribution motor 142, each food material containing chamber 144 receives a certain amount of rice when passing through the rice outlet 112 (it can be understood that the rice falls from the rice outlet 112 into one of the food material containing chambers 144 at a high speed, so that the received certain amount of rice is the amount of rice filling the food material containing chamber 144), when the food material containing chamber 144 with rice sweeps across the rice outlet 145, the rice falls into the food material receiving unit 150, and then the next food material containing chamber 144 continues to rotate to the rice outlet 112 to receive the rice again, and through such a circulation manner and by controlling the rotation angle of the distribution motor 142, the food material distribution unit 140 can quantitatively convey the rice from the food material containing unit 110 to the food material receiving unit 150. In this embodiment, 4 stirring plates are disposed in the distribution chamber 141, and the 4 stirring plates form a cross shape, that is, every time the distribution motor 142 rotates 90 degrees, one food material containing chamber 144 sweeps through the rice dropping opening 145. And each of the food material holding chambers 144 may be set to hold about 75g of 0.5 cup of rice therein. When the user needs to obtain 1 cup of rice (about 150g), the dispensing motor 142 may be rotated by 180 degrees so that the food receiving unit 150 receives the rice in the 2 food material containing chambers 144, and when the user needs to obtain 1.5 cups of rice (about 225g), the dispensing motor 142 may be rotated by 270 degrees so that the food receiving unit 150 receives the rice in the 3 food material containing chambers 144.
Further, when the dial plate stays right above the rice dropping opening 145, the rice dropping opening 145 can be completely covered, so that the rice dropping opening 145 can be closed. That is, the cross-sectional area of the striking plate is larger than the cross-sectional area of the rice drop opening 145. Preferably, the drop outlet 145 may be shaped in a long bar so that the striking plate can completely cover the drop outlet 145. In this embodiment, when the toggle plate rotates in the distribution chamber 141, it can push the rice in the food material containing chamber 144 to fall into the food material receiving unit 150 when the rice needs to be taken, and can stay above the rice dropping opening 145 to seal the rice dropping opening 145 when the rice does not need to be taken.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. It will be appreciated by those skilled in the art that many variations and modifications may be made to the teachings of the invention, which fall within the scope of the invention as claimed.
Claims (8)
1. A control method for a rice storage device having an accommodating space for storing food material, a pressure reducing device for reducing a pressure of the accommodating space, and a detecting device for detecting an operating parameter of the pressure reducing device, the control method comprising:
acquiring a predetermined pressure of the accommodating space input by a user;
controlling the pressure reducing device to exhaust the accommodating space so as to reduce the pressure of the accommodating space;
the method comprises the steps of obtaining working parameters of the pressure reducing device in real time, judging whether the pressure in the containing space reaches the preset pressure or not according to the working parameters and preset rules, and controlling the pressure reducing device to stop air extraction if the pressure in the containing space reaches the preset pressure, wherein the preset rules comprise alternative pressures, corresponding relations and prestored working parameters, the corresponding relations are used for representing corresponding relations between the alternative pressures and the prestored working parameters, and the preset pressure is selected from the alternative pressures.
2. The control method for a rice storage device according to claim 1, wherein the working parameter is a working current of the pressure reducing device, the pre-stored working parameter in the preset rule is a pre-stored working current, and the correspondence is used to represent a correspondence between the alternative pressure and the pre-stored working current;
and when the working current of the pressure reducing device is equal to the pre-stored working current corresponding to the alternative pressure, controlling the pressure reducing device to stop air extraction.
3. A control method for a rice storage device according to claim 2, characterized in that the establishment of the preset rule comprises:
recording real-time working current of the pressure reducing device and real-time pressure in the accommodating space corresponding to the real-time working current in the air extraction operation process in advance, and establishing a corresponding relation between the real-time working current and the real-time pressure to form the corresponding relation of the preset rule.
4. The control method for a rice storage device according to claim 1, wherein the operating parameter is an operating duration of the pressure reducing device, the pre-stored operating parameter in the preset rule is an alternative operating duration, and the correspondence is used to represent a correspondence between the alternative pressure and the alternative operating duration;
and when the working time of the pressure reducing device is equal to the alternative working time corresponding to the alternative pressure, controlling the pressure reducing device to stop air extraction.
5. A control method for a rice storage device according to claim 4, characterized in that the establishment of the preset rules comprises:
recording in advance a first real-time pressure of the accommodating space when the pressure reducing device operates for different working hours during the air-extracting operation, in a case where the amount of rice in the accommodating space is a first amount of rice; and recording in advance a second real-time pressure of the accommodating space when the pressure reducing device operates for the different operating time periods during the air extracting operation, in a case where the amount of rice in the accommodating space is a second amount of rice greater than the first amount of rice;
calculating the average pressure of the first real-time pressure and the second real-time pressure when the different working time lengths are reached, and establishing the corresponding relation between the average pressure and the different working time lengths to form the corresponding relation of the preset rule, wherein the different working time lengths are recorded as the alternative working time lengths.
6. A control method for a rice storage device according to claim 5, characterized in that the second amount of rice is the maximum amount of rice that the accommodation space can store.
7. A control method for a rice storage device according to claim 4, characterized in that the alternative operating time period is in the range of 5 to 120 seconds.
8. A rice storage device, comprising:
a food material accommodating unit configured as a box body having a certain accommodating space;
the pressure reducing device is used for exhausting air to the food material containing unit when the food material containing unit is closed so that the pressure in the food material containing unit reaches a preset pressure;
the detection device is used for detecting working parameters of the pressure reducing device; and
a control device electrically connected with the pressure reducing device and the detection device,
wherein the control device is configured to control the rice storage device to perform the steps of the control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911413256.4A CN111493703A (en) | 2019-12-31 | 2019-12-31 | Control method for rice storage device and rice storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114305056A (en) * | 2020-09-29 | 2022-04-12 | 浙江苏泊尔家电制造有限公司 | Control method for cooking appliance and cooking appliance |
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| CN114305056B (en) * | 2020-09-29 | 2024-04-16 | 浙江苏泊尔家电制造有限公司 | Control method for cooking appliance and cooking appliance |
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