Disclosure of Invention
The invention provides a ventilation structure, equipment, a control method and a computer readable storage medium for solving the technical problem that gas stored in a closed space can not be discharged when a refrigerator is closed in the prior art.
The technical scheme adopted by the invention is as follows:
The invention provides a ventilation structure which comprises a pre-cooling bin communicated with a compartment of refrigeration storage equipment through a communicating pipe and a pre-cooling device arranged in the pre-cooling bin, wherein the compartment is provided with an exhaust pipe communicated with the outside, the pre-cooling bin is provided with an air inlet pipe communicated with the outside, and valves are arranged on the communicating pipe, the exhaust pipe and the air inlet pipe.
Furthermore, a degerming device is also arranged in the precooling bin.
Further, a valve on the air inlet pipe is a one-way valve for preventing the air in the bin from flowing to the outside. And the exhaust pipe is provided with a smell removing module.
The invention also provides refrigeration storage equipment which comprises the ventilation structure.
The invention also provides a control method of the refrigeration storage equipment, which comprises the following steps:
When the compartment door is in a closed state, detecting whether the closing duration of the compartment door is greater than or equal to a preset duration, if so, controlling the valves and the components in the pre-cooling bin to ventilate the compartment according to the state information in the pre-cooling bin, and if not, returning to the step of detecting the closing duration of the compartment door.
The step of controlling the valves and the components in the pre-cooling bin to ventilate the compartments according to the state information in the pre-cooling bin comprises the steps of opening the valve and the air pump of the air inlet pipe to enable the pre-cooling bin to be in air, closing the air inlet pipe to perform pre-cooling sterilization after the pre-cooling condition is met, and opening the communicating pipe and the air outlet pipe to ventilate after the ventilation condition is met.
Further, the precooling condition is that the air pressure of the precooling bin reaches a preset air pressure threshold value.
Further, the ventilation condition is that the temperature of the pre-cooling bin reaches the temperature of the compartment.
And when the valves and the components in the pre-cooling bin are controlled to exchange air for the compartments according to the state information in the pre-cooling bin, judging whether the air pressure in the pre-cooling bin reaches the current external environment air pressure, and if so, closing the communicating pipe and the exhaust pipe.
The invention also provides a computer readable storage medium for storing a computer program which executes the control method of the refrigeration storage device.
Compared with the prior art, the invention can automatically change the air in the compartment when the door body is closed, and can keep the storage environment fresh in the compartment. The precooling bin has a sterilization function, so that the input gas is low-temperature, sterilized and odorless gas, the freezing and refrigerating effects are not affected, and the gas does not pollute the storage. The odor-removing exhaust pipe ensures that the exhausted waste body does not have bad odor and influences the user experience.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the long-time airtight process of the refrigerator, some bad gases and peculiar smell can be generated in the refrigerator body, and the bad gases and the peculiar smell can not be emitted, so that articles in the refrigerator can be deteriorated, and bacteria can be bred. Although the current sterilization and deodorization technology can effectively preserve the quality of food, the stored gas still needs to be discharged in a closed space for a long time. In this regard, the present invention provides a method for automatically changing and exhausting air inside a refrigerator compartment when the refrigerator compartment door is closed for a long time. The whole process consists of an air inlet pipe, a communicating pipe, a precooling bin, a compartment and an exhaust pipe. External air enters the precooling bin through the air inlet pipe and is compressed, the compressed air quantity is guaranteed to be fully filled in the compartment of the box body, then precooling and sterilization are carried out in the bin, and the air temperature entering the compartment is guaranteed not to influence the refrigerating and freezing effects and is in a sterilized state. The user can set the time of periodic exhaust according to the quantity and the characteristics of the refrigerator articles, when the refrigerator compartment door is closed to reach the set value, the communicating pipe of the pre-cooling compartment is opened to exhaust the air to the compartment, meanwhile, the exhaust pipe is opened to exhaust the old air of the compartment, and all the air channels are closed after the old air is exhausted. The method can keep the gas in the box fresh and prevent the stored articles from being polluted by peculiar smell generated by long-time closing of the door, thereby causing the deterioration of the articles.
The principles and structures of the present invention are described in detail below with reference to the drawings and the examples.
As shown in fig. 1, the present invention provides a ventilation structure for a refrigeration storage device, where the refrigeration storage device may be a refrigerator or other refrigeration devices that need to be sealed during daily use, and the ventilation structure is illustrated by a refrigerator, and the ventilation structure includes a pre-cooling bin 2, and the refrigerator further includes existing necessary components such as a refrigeration assembly, which are not described in detail. The precooling bin 2 is communicated with the compartment 1 of the refrigerator through the communicating pipe 3, the compartment 1 is provided with an exhaust pipe 5 communicated with the outside, the specific exhaust pipe 5 and the pipe orifice of the communicating pipe 3 can be oppositely arranged on two side surfaces of the refrigerator, the pipe orifice of the communicating pipe 3 can also be arranged at the bottom, the pipe orifice of the exhaust pipe 5 is arranged on the side surface, the air flow during ventilation is convenient, and the precooling bin 2 is provided with an air inlet pipe 4 communicated with the outside. When the compartment 1 of the refrigerator needs to be ventilated, air is firstly exhausted through the pre-cooling bin 2, and particularly an air pump is arranged on the air inlet pipe 4 to exhaust air, air in the pre-cooling bin is pre-cooled after the pre-cooling bin reaches the preset pressure, and finally the exhaust pipe and the communicating pipe are communicated, so that the air in the pre-cooling bin is discharged into the compartment, and meanwhile, the air in the compartment is discharged through the exhaust pipe, so that the ventilation effect of the compartment is achieved.
The precooling bin 2 is specifically provided with a precooling device 8, a degerming device 9, a temperature sensor 6 and a pressure sensor 7, namely the precooling bin actually has a degerming effect of being a precooling degerming bin, and the precooling device 8 can be specifically a second evaporator which is connected with an evaporator in a refrigerator refrigerating assembly in parallel and is communicated with the evaporator when precooling is needed. The sterilization means 9 are in particular existing sterilization modules, such as exchangeable sterilization bags or switchable sterilization lamps or the like. The temperature sensor 6 is used for detecting the temperature in the pre-cooling bin, and the pressure sensor 7 is used for detecting the air pressure in the pre-cooling bin.
In a specific embodiment, the communicating pipe 3, the exhaust pipe 5 and the air inlet pipe 4 are all provided with electrically controlled valves. The air inlet pipe 4 of the pre-cooling bin 2 is also provided with a one-way valve for preventing air in the bin from flowing to the outside, namely, a switch valve is not required to be arranged, and air can be normally pumped from the outside through an air pump when air is required to be pumped.
The specific setting position of precooling storehouse can set up in the bottom of compartment, also can set up the back that is located the compartment at the refrigerator. And the device can be arranged at other positions according to actual design requirements and is within the protection scope of the invention.
In a specific embodiment, the exhaust pipe 5 may further be provided with a deodorizing module, so as to avoid the influence on the user experience caused by too heavy gas odor exhausted from the refrigerator. The odor removing module can be any odor removing module which can be installed on a pipeline in the prior art, and the odor removing module is within the protection scope of the invention as long as the odor removing function is realized.
The invention also provides refrigeration storage equipment which comprises the ventilation structure.
The invention also provides a control method of the refrigeration storage equipment, which is characterized by comprising the following steps:
Setting a preset time length for closing the compartment door;
Judging whether the compartment door is in a door opening state or not, if so, ending the control flow;
If not, namely when the compartment door is in a closed state, detecting whether the closing duration of the compartment door is greater than or equal to the preset duration, if so, controlling each valve and the components in the pre-cooling compartment to exchange air for the compartment according to the state information in the pre-cooling compartment, and if not, returning to the judging step of detecting the closing duration of the compartment door.
The components in the precooling bin specifically comprise a precooling device, a degerming device and an air pump on an air inlet pipe.
The method for controlling the valves and the components in the pre-cooling bin to exchange air for the compartments according to the state information in the pre-cooling bin specifically comprises the steps of opening an air pump (a one-way valve arranged on an air inlet pipe) or opening a switch valve and the air pump on the air inlet pipe to enable the pre-cooling bin to enter air, closing the air inlet pipe and the air pump after the pre-cooling condition is met, closing the pre-cooling bin, opening a pre-cooling device to pre-cool, simultaneously opening a sterilizing device to sterilize, opening a communicating pipe and an exhaust pipe to exchange air after the air exchange condition is met, enabling high-pressure cold air in the pre-cooling bin to be automatically filled into the refrigerator compartment, and simultaneously enabling the exhaust pipe to automatically exhaust original waste gas in the refrigerator compartment.
The precooling conditions are specifically that the air pressure of the precooling bin reaches a preset air pressure threshold value, and the precooling can be performed by sealing the precooling bin. The preset air pressure threshold may be set to a maximum preset air pressure that may be reached by the pre-chill bin.
The ventilation condition is that the temperature of the pre-cooling bin reaches the temperature of the compartment, namely when the temperature of the pre-cooling bin is equal to the compartment temperature (or lower than the compartment temperature and cannot cause temperature fluctuation), the air in the pre-cooling bin is introduced into the compartment at the moment, so that the compartment temperature cannot fluctuate, and the freshness of food in the compartment cannot be influenced.
When the valves and the components in the pre-cooling bin are controlled to ventilate the compartments according to the state information in the pre-cooling bin, whether the air pressure in the pre-cooling bin reaches the current external environment air pressure is judged, if so, the pre-cooling bin cannot be inflated into the compartments any more, and at the moment, the communicating pipe and the exhaust pipe can be closed.
As shown in fig. 2, the following is a specific embodiment of the control method of the present invention applied to a refrigerator:
Step 1, when detecting that the refrigerator compartment door (namely the refrigerator door in the figure) is closed, starting the process, initializing data, inputting a door closing time threshold Td, and if no input operation is performed by a user, setting the door closing time threshold Td to be the last set value or the default value. Step 2 is performed.
And 2, detecting the opening and closing state of the compartment door, executing the whole process under the closing state of the compartment door, immediately ending the whole process if the compartment door is detected to be opened, and restoring the system to be initialized until the compartment door is closed, and starting the process from the step 1 again. Step 3 is performed when the door is closed.
Step 3, detecting the closing time of the chamber door, and when the closing time of the chamber door reaches a set value (t=td), indicating that the air exchange can be started. Step 4 is performed.
And 4, starting to store air through the air inlet pipe by the precooling sterilization bin (namely, the precooling bin with the sterilization function), wherein the system provides an air pressure value (set as P1) expressing that the air is fully stored according to the volume and the environmental pressure of the precooling sterilization bin (namely, the precooling bin with the sterilization function), and when the pressure detector detects that the air pressure reaches P1, the air is considered to be stored sufficiently (the basis of the sufficient storage is that the old air can be discharged and the room is fully filled with the normal environmental air pressure when the air in the bin is released to the room of the box body). Step 5 is performed.
And 5, closing the air inlet pipe after the stored gas is completely stored, and starting precooling, degerming and deodorizing the stored air by the precooling degerming bin. Step 6 is performed.
And 6, judging whether the precooling sterilization bin reaches the temperature of the space between the boxes to be exhausted, and taking the temperature as the basis whether the precooling sterilization bin can output gas. If not, continuing pre-cooling and sterilizing in the bin, and if so, executing the step 7.
And 7, when the precooling sterilization bin finishes the treatment of the gas, opening the precooling sterilization bin, discharging the gas into the compartment of the box body, and simultaneously opening the odor-removing exhaust pipe to start the exchange and the exhaust of the compartment. At this time, the air pressure in the pre-cooling sterilization bin is detected, and when the air pressure in the bin is reduced to the ambient air pressure (set to P0), the air exhausting and air exchanging are finished, and the pre-cooling sterilization bin and the air exhausting pipe are closed. Step 8 is performed.
And 8, restarting the flow period after the ventilation is finished, and circularly reciprocating, wherein all processes are automatically ended only when the door opening of a user is detected, and waiting for a next door closing signal.
The invention also provides a computer readable storage medium for storing a computer program, which executes the control method of the refrigerator when running.
In the invention, whether the air exhausting and exchanging standard is the time set by the user (default value if not set), which has the advantages that the automatic air exhausting time can be set according to the quantity of the articles in the refrigerator and the articles of the individual easy bacteria and flavor generating infants, the opening and closing of the flow are automatically executed according to the opening and closing state of the door body, and the invention is more personalized.
The precooling and degerming bin has the functions of precooling, degerming and deodorizing, air pressure detection and temperature detection. The pre-cooling is used for reducing the temperature of stored gas and ensuring that the freezing and refrigerating effects are not disturbed when the stored gas is input into the box body, the sterilizing and deodorizing is used for ensuring the purity of the gas discharged into the compartment, the air pressure detecting is used for detecting the air pressure in the bin to judge whether the gas is completely input/discharged during the input/discharge process, and the temperature detecting is used for judging whether the gas reaches the temperature suitable for being discharged into the compartment.
The exhaust pipe can be provided with the odor removing module, so that the exhaust pipe has an odor removing function, exhaust gas does not have irritation, and user experience is prevented from being influenced.
It is noted that the above-mentioned terms are used merely to describe specific embodiments, and are not intended to limit exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present application, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.