Ventilation structure, device, control method and computer readable storage medium

Abstract

The present invention discloses a ventilation structure, equipment, control method and computer-readable storage medium, including: a compartment, a precooling bin connected to the compartment through a connecting pipe, a precooling device arranged in the precooling bin, the compartment is provided with an exhaust pipe connected to the outside, the precooling bin is provided with an air intake pipe connected to the outside, and valves are provided on the connecting pipe, the exhaust pipe and the air intake pipe. The present invention can automatically replace the air in the compartment when the door is closed, and can keep the storage environment in the compartment fresh. Moreover, the precooling bin has a sterilization function, which can ensure that the input gas is a low-temperature, sterilized and odor-free gas, which does not affect the freezing and refrigeration effect and the gas does not contaminate the storage. The odor-free exhaust pipe ensures that the discharged old gas will not have an unpleasant smell, which affects the user experience.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration storage technology, and in particular to a ventilation structure, equipment, control method and computer-readable storage medium. Background Art

[0002] In current refrigerators, if the door is not opened for a long time, some bad gases and odors will be generated inside the refrigerator, which cannot be dissipated, and may cause the items inside the refrigerator to deteriorate and breed bacteria. Although the current sterilization and odor removal technology can effectively preserve the quality of food, it is still necessary to discharge the accumulated gas in a closed space for a long time. Summary of the invention

[0003] In order to solve the technical problem in the prior art that the gas accumulated in the enclosed space cannot be discharged when the refrigerator door is closed, the present invention proposes a ventilation structure, equipment, control method and computer-readable storage medium.

[0004] The technical solution adopted by the present invention is:

[0005] The present invention proposes a ventilation structure, comprising: a precooling bin connected to a compartment of a refrigeration storage device through a connecting pipe, a precooling device arranged in the precooling bin, the compartment is provided with an exhaust pipe connected to the outside, the precooling bin is provided with an air inlet pipe connected to the outside, and valves are provided on the connecting pipe, the exhaust pipe and the air inlet pipe.

[0006] Furthermore, a sterilization device is also provided in the pre-cooling chamber.

[0007] Furthermore, the valve on the air inlet pipe is a one-way valve for preventing the gas in the chamber from flowing to the outside, and a deodorizing module is provided on the exhaust pipe.

[0008] The present invention also provides a refrigeration storage device, comprising the above-mentioned ventilation structure.

[0009] The present invention also provides a control method for a refrigeration storage device, using the above refrigeration storage device, comprising the steps of:

[0010] When the compartment door is in a closed state, it is detected whether the duration of the compartment door closing is greater than or equal to the preset duration. If so, the valves and components in the precooling bin are controlled according to the status information in the precooling bin to ventilate the compartment. If not, the step of returning to the step of detecting the duration of the compartment door closing is performed.

[0011] The above-mentioned method of controlling each valve and components in the pre-cooling chamber to ventilate the compartment according to the status information in the pre-cooling chamber includes the steps of: opening the valve and the air pump of the air inlet pipe to allow air to enter the pre-cooling chamber, closing the air inlet pipe for pre-cooling and sterilization after the pre-cooling conditions are met, and opening the connecting pipe and the exhaust pipe for ventilation after the ventilation conditions are met.

[0012] Furthermore, the pre-cooling condition is that the air pressure in the pre-cooling chamber reaches a preset air pressure threshold.

[0013] Furthermore, the ventilation condition is that the temperature of the precooling chamber reaches the temperature of the compartment.

[0014] When the valves and components in the precooling chamber are controlled according to the status information in the precooling chamber to ventilate the chamber, it is determined whether the air pressure in the precooling chamber reaches the current ambient air pressure outside. If so, the connecting pipe and the exhaust pipe are closed.

[0015] The present invention also proposes a computer-readable storage medium for storing a computer program, wherein the computer program executes the control method of the refrigeration storage device when running.

[0016] Compared with the prior art, the present invention can automatically replace the air in the compartment when the door is closed, which can keep the storage environment in the compartment fresh. In addition, the pre-cooling chamber also has a sterilization function, which can ensure that the input gas is low-temperature, sterilized and odor-free gas, which does not affect the freezing and refrigeration effect and the gas will not pollute the storage. The odor-free exhaust pipe ensures that the discharged waste will not have an unpleasant smell that affects the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A simplified structural diagram of an embodiment of the present invention;

[0019] Figure 2 Flowchart of an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] During the long-term sealing process of the refrigerator, some bad gases and odors will be generated in the box, which cannot be dissipated, which may cause the items in the refrigerator to deteriorate and breed bacteria. Although the current sterilization and deodorization technology can effectively preserve the quality of food, it is still necessary to discharge the accumulated gas in the long-term closed space. In this regard, the present invention proposes a method for automatically replacing the air inside the box when the refrigerator compartment door is closed for a long time. The whole process consists of an air intake pipe, a connecting pipe, a precooling bin, a compartment and an exhaust pipe. The external air enters the precooling bin through the air intake pipe and is compressed to ensure that the amount of compressed air is sufficient to fill the compartment of the box, and then precooling and sterilization are performed in the bin to ensure that the temperature of the air entering the compartment does not affect the refrigeration and freezing effect and is in a sterilized state. The user can set the time for regular exhaust according to the number and characteristics of the refrigerator items. When the refrigerator compartment door is closed to the set value, the connecting pipe of the precooling bin is opened to exhaust the air to the compartment, and the exhaust pipe is opened at the same time to discharge the old air in the compartment. After completion, all air ducts are closed. The method can keep the gas in the box fresh and prevent the odor generated by closing the door for a long time from contaminating the stored items, thereby causing the items to deteriorate.

[0022] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the present invention proposes a ventilation structure for a refrigeration storage device, which can be a refrigerator or other refrigeration equipment that needs to be sealed during daily use. Now, a refrigerator is used as an example. The ventilation structure includes: a pre-cooling chamber 2, and the refrigerator also includes existing necessary components such as refrigeration components, which are not described one by one. The pre-cooling chamber 2 is connected to the compartment 1 of the refrigerator through a connecting pipe 3. The compartment 1 is provided with an exhaust pipe 5 connected to the outside. Specifically, the exhaust pipe 5 and the pipe openings of the connecting pipe 3 can be relatively arranged on the two sides of the refrigerator, or the pipe opening of the connecting pipe 3 can be arranged at the bottom, and the pipe opening of the exhaust pipe 5 can be arranged on the side, which is convenient for the gas flow during ventilation. The pre-cooling chamber 2 is provided with an air intake pipe 4 connected to the outside. When the compartment 1 of the refrigerator needs to be ventilated, air is first extracted through the pre-cooling chamber 2. Specifically, an air pump can be arranged on the air intake pipe 4 to extract air. After reaching a preset pressure, the air in the pre-cooling chamber is pre-cooled. Finally, the exhaust pipe and the connecting pipe are connected to discharge the air in the pre-cooling chamber into the compartment. At the same time, the air in the room is discharged through the exhaust pipe to achieve the effect of ventilation of the compartment.

[0024] The precooling chamber 2 is specifically provided with a precooling device 8, a sterilizing device 9, a temperature sensor 6 and a pressure sensor 7, that is, the precooling chamber actually has a sterilizing effect and is a precooling and sterilizing chamber. The precooling device 8 can be specifically a second evaporator connected in parallel with the evaporator in the refrigerator refrigeration assembly, and the evaporator can be connected when precooling is required. The sterilizing device 9 is specifically an existing sterilization module, such as a replaceable sterilization bag or a switchable sterilization lamp, etc. The temperature sensor 6 is used to detect the temperature in the precooling chamber, and the pressure sensor 7 is used to detect the air pressure in the precooling chamber.

[0025] In a specific embodiment, electronically controlled valves are provided on the connecting pipe 3, the exhaust pipe 5 and the air inlet pipe 4. Among them, a one-way valve is also provided on the air inlet pipe 4 of the pre-cooling chamber 2 to prevent the gas in the chamber from flowing to the outside, that is, there is no need to set a switch valve, and when air is required, air can be normally pumped from the outside through an air pump.

[0026] The specific location of the pre-cooling bin can be located at the bottom of the compartment, or at the back of the refrigerator at the rear side of the compartment. It can also be located at other locations according to actual design needs, all within the protection scope of the present invention.

[0027] In a specific embodiment, a deodorizing module may be provided on the exhaust pipe 5 to prevent the gas discharged from the refrigerator from having too strong an odor and affecting the user experience. The deodorizing module may be any deodorizing module that can be installed on a pipeline in the prior art, and as long as it realizes the deodorizing function, it is within the protection scope of the present invention.

[0028] The present invention also provides a refrigeration storage device, comprising the above-mentioned ventilation structure.

[0029] The present invention also proposes a control method for a refrigeration storage device, which is characterized by comprising the steps of:

[0030] Set the preset time for the compartment door to be closed;

[0031] Determine whether the compartment door is in the open state; if so, end the control process;

[0032] If not, that is, when the compartment door is in a closed state, detect whether the duration of the compartment door closing is greater than or equal to the preset duration. If so, control each valve and the components in the precooling bin to ventilate the compartment according to the status information in the precooling bin. If not, return to the judgment step of the duration of the compartment door closing.

[0033] The components in the pre-cooling chamber specifically include a pre-cooling device, a sterilizing device and an air pump on the air inlet pipe.

[0034] The above-mentioned method of controlling each of the valves and components in the pre-cooling chamber to ventilate the compartment according to the status information in the pre-cooling chamber specifically includes the following steps: opening the air pump (a one-way valve arranged on the air inlet pipe) or opening the switch valve and the air pump on the air inlet pipe to allow air to enter the pre-cooling chamber, closing the air inlet pipe and the air pump after the pre-cooling conditions are met to seal the pre-cooling chamber, then opening the pre-cooling device for pre-cooling, and simultaneously opening the sterilization device for sterilization, and opening the connecting pipe and the exhaust pipe for ventilation after the ventilation conditions are met, so that the high-pressure cold air in the pre-cooling chamber is automatically filled into the refrigerator compartment, and at the same time the exhaust pipe automatically discharges the original waste gas in the refrigerator compartment.

[0035] The above-mentioned precooling condition is specifically: the air pressure of the precooling chamber reaches a preset air pressure threshold, which means that the precooling chamber can be closed for precooling. The preset air pressure threshold can be set to the maximum preset air pressure that the precooling chamber can reach.

[0036] The above ventilation conditions are specifically: the temperature of the pre-cooling bin reaches the temperature of the compartment, that is, when the temperature of the pre-cooling bin is equal to the compartment temperature (it can also be lower than the compartment temperature without causing temperature fluctuations), the air from the pre-cooling bin is passed into the compartment without causing compartment temperature fluctuations and affecting the preservation of food in the compartment.

[0037] When the valves and components in the pre-cooling chamber are controlled according to the status information in the pre-cooling chamber to ventilate the chamber, it is determined whether the air pressure in the pre-cooling chamber reaches the current ambient air pressure outside. If so, it means that the pre-cooling chamber can no longer inflate air into the chamber, and the connecting pipe and the exhaust pipe can be closed at this time.

[0038] like Figure 2 As shown, the following is a specific embodiment of the control method applied in a refrigerator of the present invention:

[0039] Step 1: When the refrigerator compartment door (i.e., the refrigerator door in the figure) is detected to be closed, the process starts, the data is initialized, and the door closing time threshold Td is entered. If the user does not input an operation, the last set value or the default value is used. Execute step 2.

[0040] Step 2, detect the switch status of the compartment door. The whole process will be executed when the compartment door is closed. If the compartment door is detected to be open, the whole process will be terminated immediately and the system will be restored to initialization until the compartment door is closed. The process will be activated again and start from step 1. Step 3 is executed when the door is closed.

[0041] Step 3, detect the closing time of the compartment door, when the closing time of the compartment door reaches the set value (T=Td), it means that the exhaust can be changed.

[0042] Step 4: The precooling and sterilizing chamber (i.e., the precooling chamber with sterilization function) starts to store air through the air inlet pipe. At this time, the system will provide a pressure value (set as P1) expressing "gas storage is full" according to the volume of the precooling and sterilizing chamber (i.e., the precooling chamber with sterilization function) and the ambient pressure. When the pressure detector in the chamber detects that the gas pressure reaches P1, it is considered that the gas has been stored enough (the basis for "storing enough" is to ensure that when the gas in the chamber is released into the compartment of the box, the old gas can be discharged and the compartment can be filled with normal ambient pressure). Execute step 5.

[0043] Step 5: After the gas is stored, the air inlet pipe is closed, and the pre-cooling and sterilization chamber begins to pre-cool, sterilize, and deodorize the stored air. Go to step 6.

[0044] Step 6, determine whether the pre-cooling and sterilizing chamber has reached the chamber temperature to be exhausted, and use this as the basis for whether the pre-cooling and sterilizing chamber can output gas. If not, continue pre-cooling and sterilizing in the chamber; if yes, execute step 7.

[0045] Step 7, when the pre-cooling sterilization chamber has finished processing the gas, open the pre-cooling sterilization chamber, discharge the gas into the chamber, and open the odor-free exhaust pipe to start exhausting the chamber. At this time, detect the air pressure of the pre-cooling sterilization chamber. When the air pressure in the chamber drops to the ambient pressure (set as P0), it means that the exhaust is completed, and close the pre-cooling sterilization chamber and the exhaust pipe. Go to step 8.

[0046] Step 8: After the exhaust and ventilation are completed, the process cycle is restarted and repeated. Only when it is detected that the user opens the door, all processes are automatically terminated and wait for the next door closing signal.

[0047] The present invention also proposes a computer-readable storage medium for storing a computer program, and the computer program executes the above-mentioned refrigerator control method when it is running.

[0048] In the present invention, the standard for whether to perform ventilation is the time set by the user (if not set, it is the default value). The advantage is that the automatic ventilation time can be set according to the number of items in the refrigerator and individual items that are prone to bacteria and odor. The opening and closing of the process is automatically executed according to the opening and closing status of the door, which is more personalized.

[0049] The pre-cooling and sterilization chamber has the functions of pre-cooling, sterilization and odor removal, air pressure detection, and temperature detection. Pre-cooling is to lower the temperature of the stored gas to ensure that it will not interfere with the refrigeration effect when entering the box; sterilization and odor removal is to ensure that the gas discharged into the compartment is pure; air pressure detection is to detect the gas pressure in the chamber to determine whether the gas is fully input / discharged during input / discharge; temperature detection is to determine whether the gas has reached a temperature suitable for discharge into the compartment.

[0050] A deodorizing module can be provided on the exhaust pipe to give the exhaust pipe a deodorizing function, so that the exhausted gas is non-irritating and avoids affecting the user experience.

[0051] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0053] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ventilation structure, characterized in that: include: A precooling bin connected to the compartment of the refrigeration storage device through a connecting pipe, a precooling device arranged in the precooling bin, the precooling device being a second evaporator, the second evaporator being connected in parallel with the evaporator in the refrigeration assembly of the refrigeration storage device, and being connected to the second evaporator when precooling is required; The compartment is provided with an exhaust pipe connected to the outside, the precooling chamber is provided with an air inlet pipe connected to the outside, an air pump is provided on the air inlet pipe, and valves are provided on the connecting pipe, the exhaust pipe and the air inlet pipe; the compartment starts to change the exhaust, the exhaust pipe and the connecting pipe are closed, the air pump is turned on, the external air enters the precooling chamber through the air inlet pipe and is compressed to a preset air pressure threshold, after precooling in the precooling chamber, the exhaust pipe and the connecting pipe are connected again, so that the air in the precooling chamber is discharged into the compartment, and at the same time, the air in the room is discharged through the exhaust pipe.

2. The ventilation structure according to claim 1, characterized in that: A sterilizing device is also provided in the precooling warehouse.

3. The ventilation structure according to claim 1, characterized in that: The exhaust pipe is provided with an odor purification module.

4. A refrigeration storage device, characterized in that: It comprises the ventilation structure as claimed in any one of claims 1 to 3.

5. A control method for a refrigeration storage device, characterized in that: Using the refrigeration storage device according to claim 4, comprising the steps of: When the compartment door is in a closed state, it is detected whether the duration of the compartment door closing is greater than or equal to the preset duration. If so, the valves and components in the precooling bin are controlled according to the status information in the precooling bin to ventilate the compartment. If not, the step of returning to the step of detecting the duration of the compartment door closing is performed.

6. The control method of the refrigeration storage device according to claim 5, characterized in that: The method of controlling the valves and components in the pre-cooling chamber to ventilate the chamber according to the status information in the pre-cooling chamber comprises the following steps: opening the valve and the air pump of the air inlet pipe to allow air to enter the pre-cooling chamber, closing the air inlet pipe to perform pre-cooling and sterilization after the pre-cooling conditions are met, and opening the connecting pipe and the exhaust pipe to perform ventilation after the ventilation conditions are met.

7. The control method of the refrigeration storage device according to claim 6, characterized in that: The pre-cooling condition is that the air pressure in the pre-cooling chamber reaches a preset air pressure threshold.

8. The control method of the refrigeration storage device according to claim 6, characterized in that: The ventilation condition is that the temperature of the precooling chamber reaches the temperature of the compartment.

9. The control method of the refrigeration storage device according to claim 6, characterized in that: When the valves and components in the pre-cooling chamber are controlled according to the status information in the pre-cooling chamber to ventilate the chamber, it is determined whether the air pressure in the pre-cooling chamber reaches the current ambient air pressure outside. If so, the connecting pipe and the exhaust pipe are closed.

10. A computer-readable storage medium for storing a computer program, characterized in that: When the computer program is executed, the control method for the refrigeration storage device according to any one of claims 5 to 9 is executed.

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