CN214537007U - Refrigerating and freezing equipment - Google Patents
Refrigerating and freezing equipment Download PDFInfo
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- CN214537007U CN214537007U CN202120179855.0U CN202120179855U CN214537007U CN 214537007 U CN214537007 U CN 214537007U CN 202120179855 U CN202120179855 U CN 202120179855U CN 214537007 U CN214537007 U CN 214537007U
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- 238000007710 freezing Methods 0.000 title claims abstract description 47
- 230000008014 freezing Effects 0.000 title claims abstract description 46
- 238000005057 refrigeration Methods 0.000 claims abstract description 38
- 238000004378 air conditioning Methods 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims description 142
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 103
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 66
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- 239000001301 oxygen Substances 0.000 claims description 40
- 229910052760 oxygen Inorganic materials 0.000 claims description 40
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- 239000000463 material Substances 0.000 abstract description 60
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- 229910052743 krypton Inorganic materials 0.000 description 1
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- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
本实用新型提供了一种冷藏冷冻设备。其中冷藏冷冻设备包括：箱体，其内部限定有储物空间；储物容器，设置于储物空间，其内部限定有保鲜空间；以及气调装置，设置于储物空间，且位于储物容器外部，其包括储气罐和对应设置的电磁阀，配置成在电磁阀开启的情况下向保鲜空间提供储气罐内的气体。本实用新型的冷藏冷冻设备，可以使保鲜空间实现预设气体氛围，实现多组分气体调节，改善食材的保鲜效果。
The utility model provides a refrigeration and freezing device. The refrigerating and freezing equipment includes: a box body, which defines a storage space inside; a storage container, which is arranged in the storage space and defines a fresh-keeping space inside; and an air conditioning device, which is arranged in the storage space and located in the storage container The outside, which includes a gas storage tank and a corresponding electromagnetic valve, is configured to provide the fresh-keeping space with the gas in the gas storage tank when the electromagnetic valve is opened. The refrigerating and freezing equipment of the utility model can realize the preset gas atmosphere in the fresh-keeping space, realize multi-component gas regulation, and improve the fresh-keeping effect of food materials.
Description
Technical Field
The utility model relates to an article storage field especially relates to a cold-stored refrigeration equipment.
Background
With the social development, the living standard of people is gradually improved, and the pace of life of people is faster and faster, people often buy a large amount of goods to place in various refrigeration and freezing equipment, but for leaf vegetables and fruits, the low temperature in the storage space of the refrigeration and freezing equipment can not only cause the skin of the foods to have wrinkling and spot marks, but also influence the original taste and nutrition of the foods.
In the preservation technology of the refrigeration and freezing equipment, oxygen is closely related to the oxidation and respiration of food in the refrigeration and freezing equipment. The slower the respiration of the food, the lower the oxidation of the food and the longer the preservation time. The oxygen content in the air is reduced, and the fresh-keeping effect on food is obvious. At present, in order to reduce the oxygen content in the refrigeration and freezing equipment, in the prior art, the vacuum preservation is generally utilized or a deoxidation device is additionally arranged for low-oxygen preservation. However, the operation of vacuum preservation is usually complicated and inconvenient to use; the deoxidation device usually uses electrolyte to remove oxygen, and the device is complex and the oxygen removal effect is not obvious.
Modified atmosphere technology generally refers to technology for prolonging the storage life of food by adjusting the gas atmosphere (gas component ratio or gas pressure) of a closed space where stored objects are located, and the basic principle is as follows: in a certain closed space, a gas atmosphere different from normal air components is obtained through various regulation modes so as to inhibit physiological and biochemical processes and activities of microorganisms which cause the putrefaction and deterioration of stored objects (generally food materials). In particular, in the present application, the modified atmosphere preservation discussed will be specific to modified atmosphere preservation techniques that regulate the proportions of the gas components.
As is known to those skilled in the art, the normal air composition includes (in volume percent, the same applies hereinafter): about 78% nitrogen, about 21% oxygen, about 0.939% noble gases (helium, neon, argon, krypton, xenon, radon), 0.031% carbon dioxide, and 0.03% other gases and impurities (e.g., ozone, nitric oxide, nitrogen dioxide, water vapor, etc.). In the field of modified atmosphere preservation, nitrogen-rich and oxygen-poor preservation gas atmosphere is obtained by filling nitrogen-rich gas into a closed space to reduce oxygen content. Here, nitrogen-rich gas is understood by those skilled in the art to mean a gas having a nitrogen content exceeding that of the normal air, for example, the nitrogen content therein may be 95% to 99%, or even higher; the nitrogen-rich and oxygen-poor fresh-keeping gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the nitrogen content in the normal air and the oxygen content is lower than the oxygen content in the normal air.
Often set up sealed space as the fresh-keeping room in the storing space among the prior art, but different types of food also are different to the requirement of nitrogen gas concentration, under the same nitrogen gas concentration in sealed space, can't satisfy the fresh-keeping demand of different types of food, may influence the storage effect of some food, and then has reduced user's use and has experienced. In addition, the improvement degree of the food material fresh-keeping effect is limited by filling nitrogen into the fresh-keeping space.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at realizes that multicomponent is gaseous to be adjusted, improves the fresh-keeping effect of eating the material.
The utility model discloses a further purpose improves the storage effect of article in the cold-stored refrigeration equipment.
In particular, the present invention provides a refrigeration and freezing apparatus comprising: a box body, wherein a storage space is limited in the box body; the storage container is arranged in the storage space, and a fresh-keeping space is limited in the storage container; and the air adjusting device is arranged in the storage space and positioned outside the storage container, comprises an air storage tank and a correspondingly arranged electromagnetic valve and is configured to provide air in the air storage tank for the fresh-keeping space under the condition that the electromagnetic valve is opened.
Optionally, each air storage tank is further correspondingly provided with: the base is used for fixing the air storage tank; a pressure gauge configured to detect an internal pressure of the gas storage tank; and the electromagnetic valve is arranged on the gas pipe.
Optionally, the storage container is a sealed drawer, the sealed drawer comprising: a drawer cylinder having a forward opening and defining a fresh-keeping space therein; and a drawer body slidably mounted within the drawer barrel to be operatively withdrawn outwardly and inserted inwardly from the forward opening of the drawer barrel.
Optionally, the air conditioning apparatus comprises a single air reservoir.
Optionally, the gas storage tank is filled with a single gas, and the single gas is carbon dioxide or nitrogen.
Optionally, the inside of the gas storage tank is filled with mixed gas, and the mixed gas is oxygen and nitrogen, or oxygen, nitrogen and carbon dioxide.
Optionally, one end of the gas pipe is connected with the gas storage tank, and the other end of the gas pipe is connected with the rear part of the drawer cylinder.
Optionally, the air conditioning device comprises three air storage tanks, and three electromagnetic valves are correspondingly arranged.
Optionally, the three gas tanks are filled with nitrogen, oxygen and carbon dioxide, respectively.
Optionally, the three gas pipes are all communicated with one end of a main pipe, and the other end of the main pipe is connected with the rear part of the drawer cylinder.
The utility model discloses a cold-stored refrigeration plant, include: a box body, wherein a storage space is limited in the box body; the storage container is arranged in the storage space, and a fresh-keeping space is limited in the storage container; the air conditioning device is arranged in the storage space and positioned outside the storage container, and comprises an air storage tank and a correspondingly arranged electromagnetic valve, and the air conditioning device is configured to provide air in the air storage tank for the fresh-keeping space under the condition that the electromagnetic valve is opened. The preservation space can realize the preset gas atmosphere, the multi-component gas regulation is realized, and the preservation effect of the food materials is improved.
Further, the air conditioning device of the refrigeration and freezing equipment of the utility model can comprise a single air storage tank. The gas storage tank is filled with a single gas, and the single gas is carbon dioxide or nitrogen. Or the inside of the gas storage tank is filled with mixed gas, and the mixed gas is oxygen and nitrogen, or oxygen, nitrogen and carbon dioxide. The air conditioning device also comprises three air storage tanks, and three electromagnetic valves are correspondingly arranged. The three gas storage tanks are respectively filled with nitrogen, oxygen and carbon dioxide. The gas atmosphere in the fresh-keeping space can be accurately adjusted according to the types of the food materials, so that the storage requirement of the food materials is met, and the fresh-keeping effect of the stored food materials is further ensured.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of the overall structure of a refrigerating and freezing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of a portion of a refrigeration and freezing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an air conditioning device and a storage container of a refrigeration and freezing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of the modified atmosphere device and the storage container of FIG. 3 from another perspective;
FIG. 5 is a schematic view of a part of the structure of the modified atmosphere device in FIG. 3; and
fig. 6 is a schematic structural view of an air conditioning device and a storage container of a refrigeration and freezing apparatus according to another embodiment of the present invention.
Detailed Description
The embodiment provides a refrigeration and freezing device at first, which can realize multi-component gas regulation and improve the fresh-keeping effect of food materials. Fig. 1 is a schematic overall structure diagram of a refrigeration and freezing apparatus 100 according to an embodiment of the present invention, fig. 2 is a schematic partial structure diagram of the refrigeration and freezing apparatus 100 according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of an air conditioning device 140 and a storage container 130 of the refrigeration and freezing apparatus 100 according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of another view angle of the air conditioning device 140 and the storage container 130 in fig. 3, and fig. 5 is a schematic partial structural diagram of the air conditioning device 140 in fig. 3. As shown in fig. 1 and 2, the refrigerating and freezing apparatus 100 may generally include: the box body 110, the storage container 130 and the air conditioning device 140.
Wherein a storage space is defined inside the case body 110. The number and structure of the storage spaces can be configured as required, and fig. 1 shows the case of a first space, a second space and a third space which are arranged in sequence from top to bottom; the space can be configured into a refrigerating space, a freezing space, a temperature changing space or a fresh keeping space according to different purposes. Each storage space may be divided into a plurality of storage regions by a partition plate, and the articles may be stored by a rack or a drawer.
The storage container 130 may be disposed in the storage space, for example, the storage container 130 shown in fig. 2 may be disposed in the first space. The storage container 130 has a fresh space defined therein. Through adjusting the gas atmosphere in the fresh-keeping space, the fresh-keeping effect of the food materials stored in the fresh-keeping space can be improved. As shown in fig. 5, the air-conditioning device 140 is disposed in the storage space and outside the storage container 130, and includes an air container 141 and a corresponding solenoid valve 142, and is configured to provide the air in the air container to the fresh keeping space when the solenoid valve 142 is opened. The electromagnetic valve 142 can change the communication condition of the air storage tank 141 and the fresh-keeping space, and when the electromagnetic valve 142 is opened, the air in the air storage tank 141 can be conveyed to the fresh-keeping space; when the solenoid valve 142 is closed, the gas in the gas container 141 stops being supplied to the fresh food space.
The refrigerator-freezer 100 may further include: a door 120. The door 120 may be disposed on a front surface of the cabinet 110 to enclose the storage space. The door bodies 120 may be disposed corresponding to the storage spaces, that is, each storage space corresponds to one or more door bodies 120. The number of the storage spaces and the door 120 and the functions of the storage spaces can be selected according to the actual situation. The refrigeration and freezing device 100 of the present embodiment is provided with a first door, a second door, and a third door corresponding to the first space, the second space, and the third space, which are sequentially arranged from top to bottom. The door 120 may be pivotally disposed on the front surface of the box 110, and may be opened in a drawer type, so as to implement a drawer type storage space, where the drawer type storage space is often provided with a metal slide rail, so as to ensure a soft effect during the opening and closing process of the drawer, and reduce noise. The first space of the refrigerator-freezer 100 of the present embodiment is opened in a pivoting manner, and the second and third spaces are opened in a drawer manner.
As shown in fig. 3 to 5, each air tank 141 may further be provided with: a base 143, a pressure gauge 144, and a gas delivery conduit 145. Wherein, the base 143 is used for fixing the air storage tank 141. And a pressure gauge 144 configured to detect the internal pressure of the gas tank 141. The electromagnetic valve 142 is disposed on the gas pipe 145. In addition, modified atmosphere device 140 may further include: the cover plate 146 is disposed in cooperation with the base 143 to isolate the air container 141 from the outside, and the air conditioning device 140 is flush with the upper surface of the storage container 130, thereby improving the appearance and flatness.
The case body 110 may include an inner container 111 defining a storage space therein. In a preferred embodiment, as shown in fig. 3, the storage container 130 may be a sealed drawer including: a drawer cylinder 131 having a forward opening and fixed to the inner container 111, and defining a fresh-keeping space therein; and a drawer body 132 slidably installed within the drawer cylinder 131 to be operatively withdrawn outwardly and inserted inwardly from the forward opening of the drawer cylinder 131.
The drawer cylinder 131 can be disposed at the lower portion of the inner container 111, and in other embodiments, the drawer cylinder 131 can also be disposed at the middle portion or the upper portion of the inner container 111. In this embodiment, the inner container 111 and the drawer cylinder 131 may be integrally formed, or may be separately formed and then installed. In other alternative embodiments, the fresh food space may be defined by a sealed box, a sealed can, a sealed box, or the like.
As shown in fig. 2 to 4, the modified atmosphere device 140 may comprise a single gas tank 141. In one specific embodiment, the gas reservoir 141 may be filled with a single gas therein. The single gas may be carbon dioxide or nitrogen. For example, the single gas is carbon dioxide, and under the condition that the food material is meat, the carbon dioxide in the gas storage tank 141 can be conveyed to the fresh-keeping space, so that the fresh-keeping space realizes the preset gas atmosphere: the gas percentage of carbon dioxide is 35% to 45%; under the condition that the edible material is fruits and vegetables, carbon dioxide in the gas storage tank 141 can be conveyed to the fresh-keeping space, so that the fresh-keeping space realizes the preset gas atmosphere: the gas percentage of carbon dioxide is 3% to 5%.
The carbon dioxide can be ordinary air in the fresh-keeping space, and the specific proportion of the carbon dioxide, the oxygen and the nitrogen is actually regulated in the fresh-keeping space because the normal air composition comprises about 78% of nitrogen and about 21% of oxygen. The ordinary air in the fresh-keeping space is directly utilized, the fresh-keeping space is enabled to realize the preset gas atmosphere together with the gas conveyed by the gas storage tank 141, the additional arrangement of other gas tanks can be avoided, and the cost is effectively saved.
The inventor finds that under the conditions that the temperature of the fresh-keeping space is 4 ℃ and other storage conditions are the same, two groups of identical strawberry food materials are stored, one group is used as an experimental group to enable the fresh-keeping space to be filled with the dioxide to keep a preset gas atmosphere, and the other group is used as a control group to enable the fresh-keeping space to keep the original gas atmosphere. The mean values of the contents of the two groups at the beginning were 69.57mg/100g, and after seven days, the mean value of the contents of the control group was 66.93mg/100g, while the mean value of the contents of the experimental group was 67.31mg/100 g. The loss of the control group is 2.64mg/100g, and the loss rate is 3.79 percent; the loss of the experimental group was 2.26mg/100g, and the loss rate was 3.25%.
Similarly, two groups of the same spinach food materials are stored, one group is used as an experimental group to ensure that the preservation space is filled with the dioxide to keep the preset gas atmosphere, and the other group is used as a control group to ensure that the preservation space keeps the original gas atmosphere. The mean values of the contents of the two groups at the beginning were 812.6mg/100g, and after three days, the mean value of the contents of the control group was 786.84mg/100g, while the mean value of the contents of the experimental group was 802.69mg/100 g. The loss of the control group is 28.96mg/100g, and the loss rate is 3.35 percent; the loss of the experimental group was 9.91mg/100g, and the loss rate was 1.22%. Therefore, it can be seen that the refrigeration and freezing device 100 of the present embodiment can effectively reduce the loss rate of food materials, especially for vegetable food materials.
Compared with the gas atmosphere of 100% nitrogen gas by filling nitrogen gas, the food material fresh-keeping effect can be effectively improved by adjusting the multi-component gas. For another example, the single gas is nitrogen. Then under the condition that the edible material is meat, the preservation space can realize the preset gas atmosphere by conveying nitrogen in the gas storage tank 141 to the preservation space: the gas percentage of nitrogen is 97% to 99%; under the condition that the edible material is fruits and vegetables, nitrogen in the gas storage tank 141 can be conveyed to the fresh-keeping space, so that the fresh-keeping space realizes the preset gas atmosphere: the gas percentage of nitrogen is 88% to 92%.
It is emphasized that, since the normal air composition includes about 78% nitrogen and about 21% oxygen, the predetermined gas atmosphere can be achieved by the normal air in the fresh food space and the nitrogen delivered from the air container 141 to the fresh food space. That is, in the case of the above-mentioned predetermined gas atmosphere, the other gas than nitrogen in the fresh-keeping space may be oxygen, and actually, the adjustment of the multi-component gas is also performed, instead of the adjustment of the single gas component.
In another specific embodiment, the gas storage tank 141 may be filled with a mixed gas, and the mixed gas may be oxygen and nitrogen, or oxygen, nitrogen and carbon dioxide. Preferably, the following gas atmosphere can be realized in the fresh-keeping space, and the storage effect of different food materials is improved. When the food materials are fruits and vegetables, the proportion of the mixed gas is 24.95% of oxygen, 75.05% of nitrogen, namely 5% of oxygen and 95% of common air. 5% oxygen, 92% nitrogen, 3% carbon dioxide. In the case where the food material is meat, the mixed gas ratio is 80% nitrogen and 20% oxygen, or 40% carbon dioxide, 15% oxygen, 45% nitrogen.
Further, in the case where the storage tank is provided with a single body, one end of the gas pipe 145 may be connected with the gas tank 141 and the other end may be connected with the storage container 130. Specifically, in the case where the storage container 130 is a sealed drawer, the other end of the air tube 145 is connected to the rear of the drawer cylinder 131.
The refrigeration freezer 100 may also 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 refrigeration system provides different amounts of cooling to the refrigerated space and the refrigerated space, so that the temperatures in the refrigerated space and the refrigerated space are different. Wherein the temperature in the refrigerated space is typically between 2 ℃ and 10 ℃, preferably between 3 ℃ and 8 ℃. The temperature in the refrigerated space is typically in the range of-22 ℃ to-14 ℃. The optimal storage temperatures of different kinds of food are different, and thus the storage spaces suitable for storage are also different. For example, fruit and vegetable foods are suitable for storage in the refrigerated space, while meat foods are suitable for storage in the refrigerated space.
The refrigeration and freezing device 100 of the embodiment can acquire the type information of the food materials in the fresh-keeping space by detecting the opening and closing signal of the fresh-keeping space, determine the preset gas atmosphere of the fresh-keeping space according to the type information of the food materials, and open the control electromagnetic valve 142 to convey the gas in the gas storage tank 141 to the fresh-keeping space, so that the preset gas atmosphere of the fresh-keeping space is realized. The multi-component gas can be adjusted, and the fresh-keeping effect of food materials is improved.
Specifically, a switching signal detected by a magnetic sensitive switch arranged in a matching manner with the storage container 130 can be received; and determining the state of the fresh-keeping space being opened or closed according to a switch signal obtained by detecting the magnetic-sensitive switch, and further taking the state as a standard for judging whether the fresh-keeping space has a demand for air conditioning.
In other embodiments, the refrigerator-freezer 100 may further be provided with keys configured to obtain input from a user. The existence of the air conditioning requirement in the fresh-keeping space can be determined by a key 24 arranged on the refrigeration and freezing equipment 100, for example, the operation of opening the air conditioning function by a user can be acquired by the key 24, and the key 24 can be matched with the fresh-keeping space to determine the existence of the air conditioning requirement in the fresh-keeping space. Besides the keys, the input operation of the user can be acquired by using the display screen.
In addition, the information can be automatically acquired by using an image capturing device provided in the fresh-keeping space. The image shooting device is arranged in the fresh-keeping space, and can shoot the storage area of the fresh-keeping space to obtain the storage image. For example, shooting can be performed after the opening and closing signal of the fresh-keeping space is acquired, the shot image is compared with the storage image shot last time, and the image of the picked and placed food material is determined according to the difference part in the image. And identifying the image of the picked and placed food material to determine the type information of the picked and placed food material. This operation can be accomplished by the processor of the local main control board of the refrigeration and freezing device 100, and the stored image can be transmitted to the cloud server or transmitted to the mobile terminal through the wireless network transmission module, and the cloud server or the mobile terminal compares and identifies the image.
In other embodiments, the information about the type of the picked and placed food material manually input by the user may also be obtained through an input device (e.g., a physical key, a touch key, or a touch screen) disposed on the housing of the refrigeration and freezing apparatus 100; for example, the barcode scanning device disposed on the housing of the refrigeration and freezing apparatus 100 scans the barcode on the package of the picked and placed food material to determine the information of the kind of the picked and placed food material. It should be noted that, after the fresh-keeping space is opened and closed, regardless of whether the user puts in or takes out the food material, the type information of the food material in the fresh-keeping space can be reconfirmed, so as to subsequently determine the corresponding preset gas atmosphere.
The preset gas atmosphere of the fresh-keeping space is determined according to the type information of the food materials, specifically, the preset gas atmosphere corresponding to the type information of the food materials can be inquired in a preset type information table, wherein the preset gas atmosphere corresponding to different types of food materials is stored in the type information table in advance, and the type information of the food materials comprises meat, fruits and vegetables.
Fig. 6 is a schematic structural view of an air conditioning device 140 and a storage container 130 of a refrigeration and freezing apparatus 100 according to another embodiment of the present invention. The air conditioning device 140 in this embodiment may include three air tanks 141 and three corresponding solenoid valves 142. Specifically, the three gas containers 141 may be filled with nitrogen, oxygen, and carbon dioxide, respectively.
Correspondingly, three air delivery pipes 145 are correspondingly arranged on the three storage tanks 141. The three air delivery conduits 145 each communicate with one end of a manifold 164. Specifically, in the case where the storage container 130 is a sealed drawer, the other end of the manifold 164 is connected to the rear of the drawer cylinder 131.
The refrigeration and freezing device 100 of the embodiment can acquire the type information of food materials in the fresh-keeping space by detecting the opening and closing signal of the fresh-keeping space, determine the opening sequence and the opening duration of the plurality of electromagnetic valves 142 according to the type information of the food materials, and control the plurality of electromagnetic valves 142 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 141 to the fresh-keeping space. The multi-component gas regulation can be realized for the fresh-keeping space, and the fresh-keeping effect of food materials stored in the fresh-keeping space is improved.
Specifically, a switching signal detected by a magnetic sensitive switch arranged in a matching manner with the storage container 130 can be received; and determining the state of the fresh-keeping space being opened or closed according to a switch signal obtained by detecting the magnetic-sensitive switch, and further taking the state as a standard for judging whether the fresh-keeping space has a demand for air conditioning.
In other embodiments, the refrigerator-freezer 100 may further be provided with keys configured to obtain input from a user. The existence of the air conditioning requirement in the fresh-keeping space can be determined by a key 24 arranged on the refrigeration and freezing equipment 100, for example, the operation of opening the air conditioning function by a user can be acquired by the key 24, and the key 24 can be matched with the fresh-keeping space to determine the existence of the air conditioning requirement in the fresh-keeping space. Besides the keys, the input operation of the user can be acquired by using the display screen.
In addition, the information can be automatically acquired by using an image capturing device provided in the fresh-keeping space. The image shooting device is arranged in the fresh-keeping space, and can shoot the storage area of the fresh-keeping space to obtain the storage image. For example, shooting can be performed after the opening and closing signal of the fresh-keeping space is acquired, the shot image is compared with the storage image shot last time, and the image of the picked and placed food material is determined according to the difference part in the image. And identifying the image of the picked and placed food material to determine the type information of the picked and placed food material. This operation can be accomplished by the processor of the local main control board of the refrigeration and freezing device 100, and the stored image can be transmitted to the cloud server or transmitted to the mobile terminal through the wireless network transmission module, and the cloud server or the mobile terminal compares and identifies the image.
In other embodiments, the information about the type of the picked and placed food material manually input by the user may also be obtained through an input device (e.g., a physical key, a touch key, or a touch screen) disposed on the housing of the refrigeration and freezing apparatus 100; for example, the barcode scanning device disposed on the housing of the refrigeration and freezing apparatus 100 scans the barcode on the package of the picked and placed food material to determine the information of the kind of the picked and placed food material. It should be noted that, after the fresh-keeping space is opened and closed, regardless of whether the user puts in or takes out the food material, the type information of the food material in the fresh-keeping space can be reconfirmed, so as to subsequently determine the corresponding preset gas atmosphere.
The opening sequence and the opening duration of the electromagnetic valves 142 are determined according to the type information of the food material, specifically, the opening sequence and the opening duration of the electromagnetic valves 142 corresponding to the type information of the food material can be inquired in a preset type information table, wherein the type information table stores the opening sequence and the opening duration corresponding to different types of food materials in advance, and the type information of the food materials includes meat, fruits and vegetables. In the case where three air tanks are provided, the plurality of electromagnetic valves in the foregoing may be understood as three electromagnetic valves provided correspondingly.
In a preferred embodiment, in the case that the food material is fruits and vegetables, the electromagnetic valve 142 corresponding to the gas tank 141 filled with nitrogen gas may be sequentially controlled to open for a first preset time period, the electromagnetic valve 142 corresponding to the gas tank 141 filled with oxygen gas may open for a second preset time period, and the electromagnetic valve 142 corresponding to the gas tank 141 filled with carbon dioxide gas may open for a third preset time period, where the first preset time period is longer than the second preset time period, and the second preset time period is longer than the third preset time period.
When the food material is meat, the electromagnetic valve 142 corresponding to the gas storage tank 141 filled with nitrogen gas may be sequentially controlled to open for a fourth preset time period, the electromagnetic valve 142 corresponding to the gas storage tank 141 filled with oxygen gas may open for a fifth preset time period, and the electromagnetic valve 142 corresponding to the gas storage tank 141 filled with carbon dioxide gas may open for a sixth preset time period, where the fourth preset time period is longer than the fifth preset time period, and the fifth preset time period is shorter than the sixth preset time period. Compared with the gas atmosphere of 100% nitrogen gas by filling nitrogen gas, the food material fresh-keeping effect can be effectively improved by adjusting the multi-component gas.
In a specific 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 time period may be 30 seconds, the fifth preset time period may be 15 seconds, and the sixth preset time period may be 30 seconds. That is, when the food is fruits and vegetables, the electromagnetic valve 142 corresponding to the gas tank 141 filled with nitrogen is sequentially controlled to be opened for 60 seconds to supplement nitrogen to the fresh-keeping space, the electromagnetic valve 142 corresponding to the gas tank 141 filled with oxygen is opened for 5 seconds to supplement oxygen to the fresh-keeping space, and the electromagnetic valve 142 corresponding to the gas tank 141 filled with carbon dioxide is opened for 3 seconds to supplement carbon dioxide to the fresh-keeping space. Therefore, the gas atmosphere in the preservation space is very suitable for preserving fruits and vegetables, for example, 5% of oxygen, 92% of nitrogen and 3% of carbon dioxide can be achieved.
When the food is meat, the electromagnetic valve 142 corresponding to the gas tank 141 filled with nitrogen is sequentially controlled to be opened for 30 seconds to supplement nitrogen, the electromagnetic valve 142 corresponding to the gas tank 141 filled with oxygen is opened for 15 seconds to supplement oxygen, and the electromagnetic valve 142 corresponding to the gas tank 141 filled with carbon dioxide is opened for 30 seconds to supplement carbon dioxide. Thus, the gas atmosphere in the fresh-keeping space is very suitable for keeping the meat food fresh, for example, 15% of oxygen, 45% of nitrogen and 40% of carbon dioxide can be achieved. It should be noted that the specific numerical values of the preset time period are only examples, and are not limitations of the present invention. In other embodiments, the setting can be performed according to actual conditions, so that the gas atmosphere in the fresh-keeping space meets the storage requirement of the food materials.
The refrigeration-freezing apparatus 100 of the present embodiment includes: a case 110 having a storage space defined therein; a storage container 130 disposed in the storage space, and having a fresh-keeping space defined therein; the atmosphere control device 140 is disposed in the storage space and outside the storage container 130, and includes a gas container 141 and a corresponding solenoid valve 142, and is configured to provide gas in the gas container 141 to the fresh keeping space when the solenoid valve 142 is opened. The preservation space can realize the preset gas atmosphere, the multi-component gas regulation is realized, and the preservation effect of the food materials is improved.
Further, in the refrigeration and freezing apparatus 100 of the present embodiment, the air conditioning device 140 may include a single air tank 141. The gas tank 141 is filled with a single gas, and the single gas is carbon dioxide or nitrogen. Or the gas tank 141 is filled with a mixed gas, and the mixed gas is oxygen and nitrogen, or oxygen, nitrogen and carbon dioxide. The air conditioning device 140 may further include three air tanks 141, and three corresponding solenoid valves 142. The three gas tanks 141 are filled with nitrogen, oxygen, and carbon dioxide, respectively. The gas atmosphere in the fresh-keeping space can be accurately adjusted according to the types of the food materials, so that the storage requirement of the food materials is met, and the fresh-keeping effect of the stored food materials is further ensured.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
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| CN202120179855.0U CN214537007U (en) | 2021-01-22 | 2021-01-22 | Refrigerating and freezing equipment |
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| CN202120179855.0U CN214537007U (en) | 2021-01-22 | 2021-01-22 | Refrigerating and freezing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024046379A1 (en) * | 2022-08-31 | 2024-03-07 | 青岛海尔电冰箱有限公司 | Refrigeration and freezing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024046379A1 (en) * | 2022-08-31 | 2024-03-07 | 青岛海尔电冰箱有限公司 | Refrigeration and freezing apparatus |
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