CN114812040A - Air conditioning control method of refrigeration and freezing equipment and refrigeration and freezing equipment - Google Patents

Abstract

The invention provides an air conditioning control method of refrigeration and freezing equipment and the refrigeration and freezing equipment. Wherein, a storage container is arranged in the refrigeration and freezing equipment, and a fresh-keeping space is limited in the storage container; a modified atmosphere device disposed outside the storage container and including a plurality of gas tanks and a corresponding plurality of solenoid valves, and the method comprising: detecting an opening and closing signal of the fresh-keeping space; acquiring the type information of food materials in the preservation space; determining the opening sequence and the opening duration of the plurality of electromagnetic valves according to the type information of the food materials; and controlling the plurality of electromagnetic valves to be opened according to the determined opening sequence and the opening duration so as to sequentially convey the gas in the plurality of gas storage tanks to the fresh-keeping space. According to the scheme provided by the invention, the multi-component gas regulation can be realized for the preservation space, and the preservation effect of food materials stored in the preservation space is effectively improved.

Description

Air conditioning control method of refrigeration and freezing equipment and refrigeration and freezing equipment

technical field

The invention relates to the field of article storage, in particular to an air conditioning control method of a refrigerating and freezing equipment and a refrigerating and freezing equipment.

Background technique

With the development of society and the improvement of people's living standards, as well as people's faster pace of life, people often buy a large number of items and place them in various refrigeration and freezing equipment. The low temperature in the storage space of the device not only causes wrinkles and marks on the skin of these foods, but also affects their original taste and nutrition.

In the preservation technology of refrigeration and freezing equipment, oxygen is closely related to the oxidation and respiration of food in refrigeration and freezing equipment. The slower the respiration of the food, the lower the oxidation of the food and the longer the preservation time. Reducing the oxygen content in the air has a significant effect on food preservation. At present, in order to reduce the oxygen content in the refrigerating and freezing equipment, vacuum preservation is usually used in the prior art or a deoxygenation device is additionally provided for low-oxygen preservation. However, the operation of vacuum preservation is usually cumbersome and inconvenient to use; while the deoxygenation device usually uses electrolytes to deoxygenate, the device is more complicated and the deoxygenation effect is not obvious.

The modified atmosphere preservation technology generally refers to the technology of prolonging the storage life of food by adjusting the gas atmosphere (gas composition ratio or gas pressure) in the closed space where the stored goods are located. The basic principle is: in a certain closed space , through various adjustment methods to obtain a gas atmosphere different from the normal air composition, so as to inhibit the physiological and biochemical processes and microbial activities that lead to the spoilage of stored materials (usually food materials). In particular, in this application, the modified atmosphere fresh-keeping discussed will be specifically aimed at the modified atmosphere fresh-keeping technology that adjusts the proportion of gas components.

Those skilled in the art know that the normal air composition includes (by volume percentage, the same below): about 78% nitrogen, about 21% oxygen, about 0.939% rare gases (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, and 0.03% other gases and impurities (eg, ozone, nitric oxide, nitrogen dioxide, water vapor, etc.). In the field of modified atmosphere preservation, a nitrogen-enriched and oxygen-depleted fresh-keeping gas atmosphere is usually obtained by filling a closed space with nitrogen-rich gas to reduce the oxygen content. Here, those skilled in the art know that nitrogen-rich gas refers to a gas whose nitrogen content exceeds the nitrogen content in the above-mentioned normal air, for example, the nitrogen content may be 95% to 99%, or even higher; The gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the nitrogen content in the above-mentioned normal air and the oxygen content is lower than the oxygen content in the above-mentioned normal air.

In the prior art, a sealed space is often set in the storage space as a fresh-keeping room, but different types of food have different requirements for nitrogen concentration. Under the same nitrogen concentration in the sealed space, the fresh-keeping requirements of different types of food cannot be met. , which may affect the storage effect of certain foods, thereby reducing the user experience. In addition, blindly filling the fresh-keeping space with nitrogen has a limited improvement in the fresh-keeping effect of the food.

SUMMARY OF THE INVENTION

One object of the present invention is to realize multi-component gas regulation and improve the fresh-keeping effect of food materials.

A further object of the present invention is to improve the storage effect of the items in the refrigerating and freezing equipment.

In particular, the present invention provides an air-conditioning control method for refrigerating and freezing equipment, wherein a storage container is arranged in the refrigerating and freezing device, and a fresh-keeping space is defined in the interior of the refrigerating and freezing device; an air-conditioning device is arranged outside the storage container and includes a plurality of An air storage tank and a plurality of corresponding solenoid valves, and the method includes: detecting an opening and closing signal of the fresh-keeping space; obtaining type information of the food in the fresh-keeping space; determining the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the food; and The multiple solenoid valves are controlled to open according to the determined opening sequence and opening duration, so as to sequentially transport the gas in the multiple gas storage tanks to the fresh-keeping space.

Optionally, the step of determining the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the ingredients includes: querying the opening sequence and opening duration of the multiple solenoid valves corresponding to the type information of the ingredients in a preset type information table, The type information table pre-stores the opening sequence and opening duration corresponding to different types of ingredients, and the type information of the ingredients includes meat, fruits and vegetables.

Optionally, the air conditioning device includes three air storage tanks: a first air storage tank, a second air storage tank and a third air storage tank, and three solenoid valves are correspondingly provided: a first solenoid valve, a second solenoid valve and The third solenoid valve.

Optionally, the first gas storage tank is filled with nitrogen; the second gas storage tank is filled with oxygen; and the third gas storage tank is filled with carbon dioxide.

Optionally, when the ingredients are fruits and vegetables, the first solenoid valve is controlled to open for a first preset time period, the second solenoid valve is opened for a second preset time period, and the third solenoid valve is opened for a third preset time period, wherein the first solenoid valve is opened for a third preset time period. The first preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration.

Optionally, in the case where the food material is meat, the first solenoid valve is controlled to open for a fourth preset duration, the second solenoid valve is opened for a fifth preset duration, and the third solenoid valve is opened for a sixth preset duration, wherein the first solenoid valve is opened for a sixth preset duration. The fourth preset duration is longer than the fifth preset duration, and the fifth preset duration is shorter than the sixth preset duration.

Optionally, each gas storage tank is also correspondingly provided with: a base for fixing the gas storage tank; a pressure gauge configured to detect the internal pressure of the gas storage tank; and an air delivery pipe, on which the solenoid valve is arranged.

Optionally, the storage container is a sealed drawer, and the sealed drawer includes: a drawer cylinder having a forward opening and defining a fresh-keeping space therein; The forward opening is operable for outward extraction and inward insertion.

Optionally, the plurality of air delivery pipes are all communicated with one end of a header pipe, and the other end of the header pipe is connected to the rear of the drawer cylinder.

According to another aspect of the present invention, there is also provided a refrigerating and freezing equipment, comprising a control device, the control device includes a processor and a memory, wherein the memory stores a control program, and the control program is used to realize the above-mentioned refrigerating and freezing when executed by the processor Air conditioning control method for equipment.

The air conditioning control method and the refrigerating and freezing equipment of the refrigerating and freezing equipment of the present invention obtain the type information of the ingredients in the fresh-keeping space by detecting the opening and closing signals of the fresh-keeping space, and determine the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the ingredients. , control multiple solenoid valves to open according to the determined opening sequence and opening duration, so as to sequentially transport the gas in the multiple gas storage tanks to the fresh-keeping space. The multi-component gas adjustment can be realized for the fresh-keeping space, and the fresh-keeping effect of the food stored in the fresh-keeping space can be improved.

Further, in the air-conditioning control method and refrigerating and freezing equipment of the present invention, the air-conditioning device includes three air storage tanks: a first air storage tank, a second air storage tank and a third air storage tank, and correspondingly arranged There are three solenoid valves: a first solenoid valve, a second solenoid valve, and a third solenoid valve. The first gas storage tank is filled with nitrogen; the second gas storage tank is filled with oxygen; the third gas storage tank is filled with carbon dioxide. In the case where the ingredients are fruits and vegetables, the first solenoid valve is sequentially controlled to open for a first preset duration, the second solenoid valve to open for a second preset duration, and the third solenoid valve to open for a third preset duration, wherein the first preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration. In the case that the food is meat, the first solenoid valve is sequentially controlled to open for a fourth preset period of time, the second solenoid valve to open for a fifth preset period of time, and the third solenoid valve to open for a sixth preset period of time, of which the fourth preset period of time is greater than the fifth preset duration, and the fifth preset duration is smaller than the sixth preset duration. Accurately adjust the gas atmosphere in the fresh-keeping space according to the type of ingredients, so as to meet the storage requirements of the ingredients, and further ensure the fresh-keeping effect of the stored ingredients.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic diagram of the overall structure of a refrigerating and freezing device according to an embodiment of the present invention;

2 is a schematic structural diagram of an air conditioning device and a storage container of a refrigerating and freezing equipment according to an embodiment of the present invention;

Fig. 3 is the structural representation of the storage container in Fig. 2;

Fig. 4 is a partial structural schematic diagram of the air conditioning device in Fig. 2;

5 is a structural block diagram of a control device of a refrigerating and freezing apparatus according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an air conditioning control method for a refrigerating and freezing apparatus according to an embodiment of the present invention; and

FIG. 7 is a detailed flowchart of a method for air conditioning control of a refrigerating and freezing apparatus according to an embodiment of the present invention.

Detailed ways

This embodiment first provides a refrigeration and freezing device, which can realize multi-component gas regulation in the fresh-keeping space and improve the fresh-keeping effect of the food materials stored in the fresh-keeping space. 1 is a schematic diagram of the overall structure of a refrigerating and freezing apparatus 100 according to an embodiment of the present invention, FIG. 2 is a schematic structural diagram of an air conditioning device 140 and a storage container 130 of the refrigerating and freezing apparatus 100 according to an embodiment of the present invention, and FIG. FIG. 2 is a schematic structural diagram of the storage container 130 , and FIG. 4 is a partial structural schematic diagram of the air conditioning device 140 in FIG. 2 . As shown in FIG. 1 and FIG. 2 , the refrigerating and freezing apparatus 100 may be provided with a storage container 130 and an air conditioning device 140 .

Wherein, the interior of the storage container 130 defines a fresh-keeping space. By adjusting the gas atmosphere inside the fresh-keeping space, the fresh-keeping effect of the food stored in the interior can be improved. The air conditioning device 140 may be disposed outside the storage container 130 and include a plurality of air storage tanks and a plurality of corresponding solenoid valves. The solenoid valve can change the connection between the gas storage tank and the fresh-keeping space. When the solenoid valve is opened, the gas in the corresponding gas storage tank can be delivered to the fresh-keeping space; when the solenoid valve is closed, the gas in the corresponding gas storage tank can be stopped to the fresh-keeping space. .

In a specific embodiment, as shown in FIG. 2 , the air conditioning device 140 may include three gas storage tanks: a first gas storage tank 141 , a second gas storage tank 142 and a third gas storage tank 143 , which correspond to Three solenoid valves are provided: a first solenoid valve 151 , a second solenoid valve 152 and a third solenoid valve 153 . Preferably, the first gas storage tank 141 may be filled with nitrogen, the second gas storage tank 142 may be filled with oxygen, and the third gas storage tank 143 may be filled with carbon dioxide.

In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. When a feature "comprises or includes" one or some of the features it covers, unless specifically described otherwise, this indicates that other features are not excluded and that other features may be further included.

Specifically, the refrigerating and freezing apparatus 100 may generally include: a box body 110 and a door body 120 . A storage space is defined inside the box body 110 . The number and structure of the storage space can be configured according to the needs. Figure 1 shows the first space, the second space and the third space set up and down in sequence; Temperature-changing space or fresh-keeping space. Each storage space can be divided into a plurality of storage areas by a partition board, and use a shelf or drawer to store items. The storage container 130 may be disposed in the storage space, for example, the storage container 130 may be disposed in the first space.

The door body 120 may be disposed on the front surface of the box body 110 to close the storage space. The door bodies 120 may be arranged corresponding to the storage spaces, that is, each storage space corresponds to one or more door bodies 120 . The storage space, the number of the door body 120, and the function of the storage space can be actually selected according to specific conditions. The refrigerating and freezing apparatus 100 of this embodiment corresponds to the first space, the second space, and the third space arranged up and down sequentially, and is provided with a first door body, a second door body, and a third door body, respectively.

The door body 120 can be pivotally arranged on the front surface of the box body 110, and can also be opened by a drawer to realize a drawer-type storage space, wherein the drawer-type storage space is often provided with a metal slide rail, which can ensure that the drawer is opened and closed. The process is gentle and can reduce noise. The opening method of the first space of the refrigerating and freezing apparatus 100 in this embodiment is pivot opening, and the opening methods of the second space and the third space are drawer opening.

As shown in FIG. 4 , taking the first gas storage tank 141 as an example, each gas storage tank may be correspondingly provided with a base 161 , a pressure gauge 162 and an air delivery pipe 163 . Wherein, the base 161 can be used to fix the gas storage tank. The pressure gauge 162 may be configured to detect the internal pressure of the gas tank. The solenoid valve can be arranged on the gas pipe 163, that is, the first solenoid valve 151, the second solenoid valve 152 and the third solenoid valve 153 can be arranged on the first gas storage tank 141, the second gas storage tank 142 and the third gas storage tank 143 corresponds to the gas pipe 163. A plurality of air pipes 163 are all communicated with one end of a header pipe 164 . In addition, the air-conditioning device 140 may further include: a cover plate (not shown in the figure), which is arranged in cooperation with the base 161 to isolate the air storage tank from the outside, and can separate the air-conditioning device 140 from the upper surface of the storage container 130 . Flush surfaces for improved aesthetics and flatness.

The box body 110 may include an inner container (not shown in the figure), which defines a storage space therein. In a preferred embodiment, as shown in FIG. 3 , the storage container 130 may be a sealed drawer, and the sealed drawer includes: a drawer cylinder 131 having a front opening and fixed to the inner container, which defines a fresh-keeping space therein and the drawer body 132, which is slidably installed in the drawer cylinder 131 to be operably withdrawn from the front opening of the drawer cylinder 131 and inserted inwardly. As mentioned above, the multiple air pipes 163 are all communicated with one end of a header pipe 164 . Specifically, when the storage container 130 is a sealed drawer, the other end of the header pipe 164 is connected to the rear of the drawer cylinder 131 .

The drawer cylinder 131 can be arranged at the lower part of the inner container, and in some other embodiments, the drawer cylinder 131 can also be arranged at the middle or upper part of the inner container. In this embodiment, the inner container and the drawer cylinder 131 can be integrally formed, or can be formed separately and then installed. In some other optional embodiments, the above-mentioned fresh-keeping space may also be defined by a sealed box, a sealed can, a sealed box, and the like.

The refrigeration and freezing apparatus 100 may further include a refrigeration system, and the refrigeration system may be a compression refrigeration system, including components such as an evaporator, a fan, and a compressor. The cooling capacity provided by the refrigeration system to the refrigerating space and the freezing space is different, so that the temperatures in the refrigerating space and the freezing space are also different. The temperature in the refrigerated space is generally between 2°C and 10°C, preferably between 3°C and 8°C. The temperature range in the freezing space is generally -22°C to -14°C. The optimal storage temperature for different types of food is different, and the storage space suitable for storage is also different. For example, fruit and vegetable foods are suitable for storage in a refrigerated space, while meat foods are suitable for storage in a freezer space.

The refrigerating and freezing apparatus 100 may further include a control device 200, and FIG. 5 is a structural block diagram of the control apparatus of the refrigerating and freezing apparatus 100 according to an embodiment of the present invention. The control device 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and when the control program 221 is executed by the processor 210, is used to implement the air conditioning control method for a refrigerating and freezing apparatus according to any of the following embodiments.

In the description of this embodiment, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc. A particular feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present embodiment also provides an air conditioning control method for a refrigerating and refrigerating equipment. FIG. 6 is a schematic diagram of an air conditioning control method for a refrigerating and refrigerating equipment according to an embodiment of the present invention. The air conditioning control method for the refrigerating and refrigerating equipment includes:

Step S602, detecting the opening and closing signal of the fresh-keeping space;

Step S604, obtaining the type information of the ingredients in the fresh-keeping space;

Step S606, determining the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the ingredients;

Step S608 , controlling multiple solenoid valves to open according to the determined opening sequence and opening duration, so as to sequentially transport the gas in the multiple gas storage tanks to the fresh-keeping space.

In the above steps, step S602 can be implemented by acquiring the state of the magnetic sensitive switch or other detection switches, and specifically can receive the switch signal detected from the magnetic sensitive switch matched with the storage container 130; The obtained switch signal determines whether the fresh-keeping space is opened or closed, which can then be used as a criterion for judging whether the fresh-keeping space has a demand for air conditioning.

In some other embodiments, the refrigerating and freezing apparatus 100 may further be provided with buttons configured to obtain the user's input operation. Whether there is a need for air-conditioning in the fresh-keeping space can be determined by the button 24 set on the refrigerating and freezing device 100. For example, the user's operation of turning on the air-conditioning fresh-keeping function can be obtained through the button 24. The button 24 can be set to match the fresh-keeping space to determine whether the fresh-keeping space has Air conditioning needs. In addition to the keys, the user's input operation can also be obtained by using the display screen.

In step S604, the information can be obtained automatically by using an image capturing device disposed in the fresh-keeping space. The image capturing device is arranged inside the fresh-keeping space, and can photograph the storage area of the fresh-keeping space to obtain a storage image. For example, after acquiring the opening and closing signal of the fresh-keeping space, the image can be photographed, and the image photographed this time can be compared with the storage image photographed last time, and the image of the food to be taken and placed can be determined according to the difference in the images. By recognizing the image of the picked-and-placed foodstuff, type information of the picked-and-placed foodstuffs is determined. This operation can be completed by the processor of the local main control board of the refrigerating and freezing equipment 100, or the stored image can be transmitted to the cloud server or sent to the mobile terminal through the wireless network transmission module, and the cloud server or mobile terminal can compare and identify the images. .

In some other embodiments, the input device (such as physical buttons, touch buttons or touch screen) disposed on the shell of the refrigerating and freezing apparatus 100 may also obtain the type information of the picked and placed food material manually input by the user; for example, by setting The barcode scanning device on the shell of the refrigerating and freezing apparatus 100 scans the barcode on the package of the picked-and-placed foodstuff to determine the type information of the picked-and-placed foodstuffs. It should be noted that after the fresh-keeping space is opened and closed, whether the user puts in or takes out the ingredients, the type information of the ingredients in the fresh-keeping space can be reconfirmed to determine the corresponding preset gas atmosphere in the future.

In step S606, the opening sequence and opening duration of the multiple solenoid valves are determined according to the type information of the ingredients. Specifically, the opening sequence and opening duration of the multiple solenoid valves corresponding to the type information of the ingredients can be queried in the preset type information table, The type information table pre-stores the opening sequence and opening duration corresponding to different types of ingredients, and the type information of the ingredients includes meat, fruits and vegetables.

In a specific embodiment, the air conditioning device 140 includes three air storage tanks: a first air storage tank 141, a second air storage tank 142 and a third air storage tank 143, and three solenoid valves are correspondingly provided: A solenoid valve 151 , a second solenoid valve 152 and a third solenoid valve 153 . The first gas storage tank 141 is filled with nitrogen, the second gas storage tank 142 is filled with oxygen, and the third gas storage tank 143 is filled with carbon dioxide.

In the case where the ingredients are fruits and vegetables, the first solenoid valve 151 is sequentially controlled to open for a first preset period of time, the second solenoid valve 152 to open for a second preset period of time, and the third solenoid valve 153 to open for a third preset period of time. The preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration.

In the case where the food is meat, the first solenoid valve 151 is sequentially controlled to open for a fourth preset time period, the second solenoid valve 152 is opened for a fifth preset period of time, and the third solenoid valve 153 is opened for a sixth preset period of time. The preset duration is greater than the fifth preset duration, and the fifth preset duration is shorter than the sixth preset duration. Compared with blindly filling with nitrogen to achieve a 100% nitrogen gas atmosphere, the present embodiment can effectively improve the fresh-keeping effect of food materials through multi-component gas adjustment.

In the air conditioning control method of the refrigeration and freezing equipment of this embodiment, by detecting the opening and closing signals of the fresh-keeping space, the type information of the ingredients in the fresh-keeping space is obtained, and the opening sequence and opening duration of the plurality of solenoid valves are determined according to the type information of the ingredients. The specified opening sequence and opening duration control the opening of multiple solenoid valves, so as to sequentially transport the gas in the multiple gas storage tanks to the fresh-keeping space. The multi-component gas adjustment can be realized for the fresh-keeping space, and the fresh-keeping effect of the food stored in the fresh-keeping space can be improved.

In some optional embodiments, the refrigerating and freezing apparatus 100 can achieve higher technical effects through further optimization and configuration of the above steps. The air-conditioning control method is described in detail. This embodiment is only an example of the execution process. During specific implementation, the execution sequence and operating conditions of some steps may be modified according to specific implementation requirements. FIG. 7 is a detailed flowchart of a method for air conditioning control of a refrigerating and freezing apparatus according to an embodiment of the present invention. The air conditioning control method of the refrigerating and freezing equipment comprises the following steps:

Step S702, detecting the opening and closing signal of the fresh-keeping space;

Step S704, obtaining type information of the ingredients in the fresh-keeping space;

Step S706, query the opening sequence and opening duration of the plurality of solenoid valves corresponding to the type information of the ingredients in the preset type information table;

Step S708 , controlling the opening of multiple solenoid valves according to the determined opening sequence and opening duration, so as to sequentially transport the gas in the multiple gas storage tanks to the fresh-keeping space.

In the above steps, step S702 can be realized by acquiring the state of the magnetic sensitive switch or other detection switches, and specifically can receive a switch signal detected from the magnetic sensitive switch matched with the storage container 130; The obtained switch signal determines whether the fresh-keeping space is opened or closed, which can then be used as a criterion for judging whether the fresh-keeping space has a demand for air conditioning.

In some other embodiments, the refrigerating and freezing apparatus 100 may further be provided with buttons configured to obtain the user's input operation. Whether there is a need for air-conditioning in the fresh-keeping space can be determined by the button 24 set on the refrigerating and freezing device 100. For example, the user's operation of turning on the air-conditioning fresh-keeping function can be obtained through the button 24. The button 24 can be set to match the fresh-keeping space to determine whether the fresh-keeping space has Air conditioning needs. In addition to the keys, the user's input operation can also be obtained by using the display screen.

In step S704, the information can be acquired automatically by using an image capturing device disposed in the fresh-keeping space. The image capturing device is arranged inside the fresh-keeping space, and can photograph the storage area of the fresh-keeping space to obtain a storage image. For example, after acquiring the opening and closing signal of the fresh-keeping space, the image can be photographed, and the image photographed this time can be compared with the storage image photographed last time, and the image of the food to be taken and placed can be determined according to the difference in the images. By recognizing the image of the picked-and-placed foodstuff, type information of the picked-and-placed foodstuffs is determined. This operation can be completed by the processor of the local main control board of the refrigerating and freezing equipment 100, or the stored image can be transmitted to the cloud server or sent to the mobile terminal through the wireless network transmission module, and the cloud server or mobile terminal can compare and identify the images. .

In some other embodiments, the input device (such as physical buttons, touch buttons or touch screen) disposed on the shell of the refrigerating and freezing apparatus 100 may also obtain the type information of the picked and placed food material manually input by the user; for example, by setting The barcode scanning device on the shell of the refrigerating and freezing apparatus 100 scans the barcode on the package of the picked-and-placed foodstuff to determine the type information of the picked-and-placed foodstuffs. It should be noted that after the fresh-keeping space is opened and closed, whether the user puts in or takes out the ingredients, the type information of the ingredients in the fresh-keeping space can be reconfirmed to determine the corresponding preset gas atmosphere in the future.

In step S706, the opening sequence and opening duration of the plurality of solenoid valves corresponding to the type information of the ingredients are queried in the preset type information table, wherein the type information table pre-stores the opening sequences and opening durations corresponding to different types of ingredients, and the ingredients are The category information includes meat and fruits and vegetables.

In a specific embodiment, the air conditioning device 140 includes three air storage tanks: a first air storage tank 141, a second air storage tank 142 and a third air storage tank 143, and three solenoid valves are correspondingly provided: A solenoid valve 151 , a second solenoid valve 152 and a third solenoid valve 153 . The first gas storage tank 141 is filled with nitrogen, the second gas storage tank 142 is filled with oxygen, and the third gas storage tank 143 is filled with carbon dioxide.

In the case where the ingredients are fruits and vegetables, the first solenoid valve 151 is sequentially controlled to open for a first preset period of time, the second solenoid valve 152 to open for a second preset period of time, and the third solenoid valve 153 to open for a third preset period of time. The preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration. That is to say, when the ingredients are fruits and vegetables, the first solenoid valve 151 is controlled to open for a first preset time period and then closed, then the second solenoid valve 152 is controlled to open for a second preset period of time and then closed, and finally the third solenoid valve 152 is controlled to open for a second preset period of time. The valve 153 is opened for a third preset time period and then closed.

In the case where the food is meat, the first solenoid valve 151 is sequentially controlled to open for a fourth preset time period, the second solenoid valve 152 is opened for a fifth preset period of time, and the third solenoid valve 153 is opened for a sixth preset period of time. The preset duration is greater than the fifth preset duration, and the fifth preset duration is shorter than the sixth preset duration. That is to say, when the food is meat, the first solenoid valve 151 is controlled to open for a fourth preset time period and then closed, then the second solenoid valve 152 is controlled to open for a fifth preset period of time and then closed, and finally the third solenoid valve is controlled to be closed. The valve 153 is opened for a sixth preset period of time and then closed.

In a preferred embodiment, the first preset duration may be 60 seconds, the second preset duration may be 5 seconds, and the third preset duration may be 3 seconds. The fourth preset duration may be 30 seconds, the fifth preset duration may be 15 seconds, and the sixth preset duration may be 30 seconds. That is to say, when the ingredients are fruits and vegetables, the first solenoid valve 151 is controlled to open for 60 seconds to supply nitrogen to the fresh-keeping space, the second solenoid valve 152 is opened for 5 seconds to supply oxygen to the fresh-keeping space, and the third solenoid valve 153 is opened for 3 seconds. Add carbon dioxide to the fresh-keeping space in seconds. In this way, the gas atmosphere in the fresh-keeping space is very suitable for the preservation of fruits and vegetables, for example, it can reach 5% oxygen, 92% nitrogen and 3% carbon dioxide.

When the food is meat, the first solenoid valve 151 is controlled to open for 30 seconds to supplement nitrogen, the second solenoid valve 152 is opened for 15 seconds to supplement oxygen, and the third solenoid valve 153 is opened for 30 seconds to supplement carbon dioxide. In this way, the gas atmosphere in the fresh-keeping space is very suitable for the preservation of meat food, for example, it can reach 15% oxygen, 45% nitrogen and 40% carbon dioxide. It should be noted that the specific numerical values of the above-mentioned preset durations are only examples, and are not intended to limit the present invention. In some other embodiments, settings can be made according to actual conditions, so that the gas atmosphere in the fresh-keeping space can meet the storage requirements of food materials.

In the air conditioning control method for refrigeration and freezing equipment in this embodiment, the air conditioning device 140 includes three air storage tanks: a first air storage tank 141 , a second air storage tank 142 and a third air storage tank 143 , and three corresponding air storage tanks are provided. Solenoid valves: a first solenoid valve 151 , a second solenoid valve 152 and a third solenoid valve 153 . The first gas storage tank 141 is filled with nitrogen; the second gas storage tank 142 is filled with oxygen; and the third gas storage tank 143 is filled with carbon dioxide. In the case where the ingredients are fruits and vegetables, the first solenoid valve 151 is sequentially controlled to open for a first preset period of time, the second solenoid valve 152 to open for a second preset period of time, and the third solenoid valve 153 to open for a third preset period of time. The preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration. In the case where the food is meat, the first solenoid valve 151 is sequentially controlled to open for a fourth preset time period, the second solenoid valve 152 is opened for a fifth preset period of time, and the third solenoid valve 153 is opened for a sixth preset period of time. The preset duration is greater than the fifth preset duration, and the fifth preset duration is shorter than the sixth preset duration. Accurately adjust the gas atmosphere in the fresh-keeping space according to the type of ingredients, so as to meet the storage requirements of the ingredients, and further ensure the fresh-keeping effect of the stored ingredients.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. An air conditioning control method for a refrigerating and refrigerating equipment, wherein a storage container is provided in the refrigerating and freezing equipment, and a fresh-keeping space is defined inside thereof; an air conditioning device is arranged outside the storage container and comprises a plurality of storage containers. A gas tank and a corresponding plurality of solenoid valves, and the method includes: detecting the opening and closing signal of the fresh-keeping space; Obtain the type information of the food in the fresh-keeping space; Determine the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the food; and The plurality of solenoid valves are controlled to be opened according to the determined opening sequence and the determined opening duration, so as to sequentially transport the gas in the plurality of gas storage tanks to the fresh-keeping space. 2. The method according to claim 1, wherein the step of determining the opening sequence and opening duration of the plurality of solenoid valves according to the type information of the food material comprises: The opening sequence and opening duration of the plurality of solenoid valves corresponding to the type information of the ingredients are queried in a preset type information table, wherein the type information table pre-stores the opening sequences and opening durations corresponding to different types of ingredients , and the type information of the ingredients includes meat and fruits and vegetables. 3. The method of claim 1, wherein, The air conditioning device includes three air storage tanks: a first air storage tank, a second air storage tank and a third air storage tank, and three solenoid valves are correspondingly arranged: the first solenoid valve, the second solenoid valve and the The third solenoid valve. 4. The method of claim 3, wherein, The first gas storage tank is filled with nitrogen; The second gas storage tank is filled with oxygen; The third gas storage tank is filled with carbon dioxide. 5. The method of claim 4, wherein, In the case where the ingredients are fruits and vegetables, the first solenoid valve is sequentially controlled to open for a first preset period of time, the second solenoid valve to open for a second preset period of time, and the third solenoid valve to open for a third preset period of time. duration, wherein the first preset duration is greater than the second preset duration, and the second preset duration is greater than the third preset duration. 6. The method of claim 4, wherein, In the case where the food material is meat, the first solenoid valve is controlled to open for a fourth preset time period, the second solenoid valve is opened for a fifth preset time period, and the third solenoid valve is opened for a sixth preset time period. duration, wherein the fourth preset duration is greater than the fifth preset duration, and the fifth preset duration is smaller than the sixth preset duration. 7. The method according to claim 1, wherein each of the gas storage tanks is also correspondingly provided with: a base for fixing the gas storage tank; a pressure gauge configured to detect the internal pressure of the gas tank; and An air delivery pipe, the solenoid valve is arranged on the gas delivery pipe. 8. The method of claim 7, wherein, The storage container is a sealed drawer, The airtight drawer includes: a drawer cylinder having a forward opening in which the fresh-keeping space is defined; and a drawer body slidably mounted in the drawer cylinder so as to open from the front of the drawer cylinder It is operable to be withdrawn outwardly and inserted inwardly. 9. The method of claim 8, wherein, A plurality of described gas transmission pipes are all communicated with one end of a main pipe, and The other end of the manifold is connected to the rear of the drawer cylinder. 10. A refrigerating and freezing equipment, comprising a control device, the control device comprising a processor and a memory, wherein the memory stores a control program, and when the control program is executed by the processor, it is used to realize according to claims 1 to 9 The air conditioning control method of the refrigeration and freezing equipment according to any one of them.

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