Refrigerator inflation and exhaust control method, system and equipment and storage medium

Abstract

The invention discloses a refrigerating machine inflation and exhaust control method, system and device and a storage medium, and relates to the technical field of refrigerating machines, and the method comprises the steps that an inflation and exhaust system is controlled to enter an inflation state so as to inflate an inflation inlet of the refrigerating machine with gas; a motor of the refrigerator is controlled to operate, so that gas in the refrigerator flows; the minimum temperature drop value during operation of the refrigerator is set to be higher than the current environment dew point; when the operation of the refrigerating machine reaches a preset ending condition, the refrigerating machine is controlled to stop; and the inflation and exhaust system is switched to an exhaust state, so that the mixed gas in the refrigerating machine is exhausted. Through the content of the application, the air in the refrigerator can be fully replaced, the replacement times and the replacement pressure are reduced, the purity of the finally filled helium is improved, the use consumption of the nitrogen is reduced, and the use cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of refrigerators, and in particular to a refrigerator charging and exhausting control method, system, device and storage medium. Background Art

[0002] The working principle of Stirling refrigerator is that the compression unit compresses the gas, causing the gas to compress and expand at the regenerator end to exchange heat, so that the temperature of the cold end drops to reach the chip working temperature for infrared imaging. Among the two key indicators of refrigerator working efficiency and long-term reliability, helium purity plays a vital role. At present, the gas replacement method is used for filling and exhausting. The gas attached to some blind holes and parts surfaces is difficult to be replaced, which affects the life and working efficiency of the refrigerator.

[0003] In the prior art, the refrigerant filling and exhaust process is usually to inflate the inside of the refrigerator body from the helium bottle through the high-pressure gas through the filling valve body, so that the helium is mixed with the air inside the box, and then the valve body discharges the helium that has rushed into the box through the gas path switching, and repeats this step to improve the purity of the helium inside the refrigerator. However, the internal shape of the refrigerator is complex, with blind holes, wire mesh and other dead corners, which makes it difficult for helium to mix with air, thereby reducing the replacement effect; if high-pressure repeated replacement is used to improve the purity of nitrogen, it will cause repeated high-pressure impacts on the inside of the refrigerator, which is easy to cause displacement of internal parts and affect the assembly relationship. In addition, pressurization and increasing the number of replacements will increase the amount of helium used, which is also disadvantageous from the perspective of manufacturing cost. Summary of the invention

[0004] The present invention provides a refrigerator charging and exhaust control method, system, device and storage medium, which can fully replace the air inside the refrigerator, reduce the number of replacements and replacement pressure, improve the purity of the final helium filling, and reduce the consumption of nitrogen and reduce the cost of use.

[0005] In a first aspect, the present disclosure provides a method for controlling the charging and exhausting of a refrigerator, wherein the refrigerator comprises a refrigerator body and a motor for driving the refrigerator body to operate; the charging port of the refrigerator is connected to a charging and exhausting system; the control method comprises the following steps:

[0006] Controlling the charging and exhausting system to enter a charging state so as to charge gas into the charging port of the refrigerator;

[0007] Controlling the operation of the motor of the refrigerator to allow the gas inside the refrigerator to flow; the minimum temperature drop value when the refrigerator is running is set to be higher than the current ambient dew point;

[0008] When the operation of the refrigerator reaches a preset end condition, controlling the refrigerator to stop;

[0009] The charging and exhaust system is switched to an exhaust state to discharge the mixed gas in the refrigerator.

[0010] In some embodiments, controlling the operation of the motor of the refrigerator includes: controlling the motor of the refrigerator to cyclically operate under preset operating conditions so that the refrigerator operates intermittently;

[0011] When the operation of the refrigerator reaches a preset end condition, controlling the refrigerator to stop includes: when the number of cycles of the operation of the refrigerator motor reaches a preset end number, controlling the refrigerator to stop.

[0012] In some embodiments, controlling the operation of the motor of the refrigerator includes:

[0013] Controlling the motor of the refrigerator to run at a first speed so that the refrigerator circulates the internal gas;

[0014] When the duration of the motor running at the first speed reaches a preset cycle operation duration, the motor of the refrigerator is controlled to run at a second speed to allow the gas in the refrigerator to flow rapidly until the motor runs at the second speed for a preset high-speed operation duration.

[0015] In some embodiments, during the operation of the motor controlling the refrigerator, the first speed is lower than the second speed; and the operating time of the first speed is longer than the operating time of the second speed.

[0016] In some embodiments, before the step of controlling the operation of the motor of the refrigerator, the control method includes:

[0017] timing the charging time of the refrigerator;

[0018] Determine whether the inflation time reaches a preset time. If so, enter the step of controlling the motor operation of the refrigerator.

[0019] In some embodiments, before the step of switching the charging and exhaust system to the exhaust state, the method further comprises:

[0020] timing the duration of the refrigeration machine stopping operation;

[0021] When the duration of the refrigerator stopping operation reaches the preset shutdown duration, the step of switching the charging and exhaust system to the exhaust state is entered.

[0022] In some embodiments, the charging and exhaust system cyclically performs charging and exhausting operations; the control method further includes: after the step of switching the charging and exhaust system to the exhaust state to discharge the mixed gas in the refrigerator, controlling the charging and exhaust system to cyclically operate according to the preset charging and exhausting time.

[0023] In a second aspect, the present disclosure provides a refrigerator charging and exhaust control system, comprising a refrigerator, a charging and exhaust system and a control unit; the charging hole of the refrigerator is connected to the air circuit of the charging and exhaust system; the refrigerator and the charging and exhaust system are both connected to the control unit, and the control unit is used to execute the steps of the control method described in the above aspects.

[0024] In a third aspect, the present disclosure provides a control device, comprising a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above aspects.

[0025] In a fourth aspect, the present disclosure provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method described in the above aspects when executed by a processor.

[0026] In a fifth aspect, the present disclosure provides a computer program product, including a computer program, which implements the steps of the method described in the above aspects when executed by a processor.

[0027] The present disclosure provides a refrigerator charging and exhaust control method, system, device and storage medium, the control method comprising: controlling the charging and exhaust system to enter the charging state to charge the gas into the charging port of the refrigerator; controlling the motor of the refrigerator to operate so that the gas inside the refrigerator flows; setting the minimum temperature drop value when the refrigerator is running to be higher than the current ambient dew point; controlling the refrigerator to stop when the operation of the refrigerator reaches a preset end condition; switching the charging and exhaust system to the exhaust state to discharge the mixed gas in the refrigerator. By putting the refrigerator in an operating state during charging, the internal gas circulates, driving the compression piston and the regenerator of the refrigerator to intermittently reciprocate, repeatedly squeezing the dead volume in the refrigerator, so that the gas entering from the charging port can fully purge the gas on the surface of the internal parts, and fully mix with the internal air, thereby improving the replacement effect, so that it is discharged after mixing with the gas retained in the dead volume of the refrigerator, fully replacing the air inside the refrigerator, and improving the purity of the helium filled at the end. By running the refrigerator motor at variable speed, the gas is first circulated at a low speed to fully mix the charged gas with the air inside the refrigerator. The refrigerator is then operated at a high speed to allow the air flow to quickly flow over the workpiece surface, thereby taking away the gas attached to the surface of the part, fully replacing the air inside the refrigerator and improving the purity of the final nitrogen charge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0029] Figure 1 A flow chart of a refrigerator charging and exhausting control method provided by an embodiment of the present disclosure;

[0030] Figure 2 The embodiment of the present disclosure corresponds to Figure 1 An exemplary flow chart of step S2 in FIG.

[0031] Figure 3 An exemplary block diagram of a refrigerator charging and exhaust control system provided in Embodiment 2 of the present disclosure;

[0032] Figure 4 An exemplary bar graph of motor speed fluctuations in the application example provided in the third embodiment of the present disclosure;

[0033] Figure 5 A schematic block diagram of a control device provided in an embodiment of the present disclosure;

[0034] Figure 6 A schematic diagram of a computer-readable storage medium provided in an embodiment of the present disclosure.

[0035] In the drawings, the same reference numerals are used for the same components and the drawings are not drawn to scale. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, and to fully understand and implement how the present disclosure applies technical means to solve technical problems and achieve the corresponding technical effects, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the present disclosure, not all of the embodiments. The embodiments of the present disclosure and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the scope of protection of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present disclosure.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0038] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0039] Infrared detectors have the characteristics of passive detection, high detection sensitivity and strong environmental adaptability. They are widely used in military reconnaissance, missile systems and civilian environmental monitoring. In recent years, infrared application systems have put forward higher requirements on the size, weight, power consumption and service life of detector components. The refrigerator is an important component of the refrigerated infrared detector component and is also the key to the product life.

[0040] The working principle of the Stirling refrigerator is that the compression unit compresses the gas, causing the gas to compress and expand at the regenerator end to exchange heat, so that the temperature of the cold end drops to reach the chip working temperature for infrared imaging. Among the two key indicators of the refrigerator's working efficiency and long-term reliability, the purity of helium plays a vital role. At present, the gas replacement method is used for filling and exhausting. It is difficult to replace the gas attached to some blind holes and parts. This affects the life and working efficiency of the refrigerator. The existing filling and exhaust method is to use high-pressure gas to inflate the inside of the refrigerator body from the helium bottle through the inflation valve body to mix the helium with the air inside the box, and then the valve body will discharge the helium that rushes into the box through the gas path switching. Repeat this step to improve the purity of the helium inside the refrigerator; or increase the pressure and the number of replacements to improve the purity of the gas inside the refrigerator. However, the internal shape of the refrigerator is complex, the number of parts is large, and there are blind holes, wire mesh and other dead corners. Helium is not easy to mix with air, which reduces the replacement effect. Repeated impacts on the inside of the refrigerator under high pressure will affect the matching effect between the parts, causing internal parts to shift and affecting the assembly relationship. In addition, pressurization and increasing the number of replacements will increase the amount of helium used, which is also disadvantageous from a manufacturing cost perspective.

[0041] An embodiment of the present disclosure provides a refrigerator charging and exhaust control method, wherein the refrigerator includes a refrigerator body and a motor for driving the refrigerator body to operate; the charging port of the refrigerator is connected to the charging and exhaust system, and the control method includes the following steps: controlling the charging and exhaust system to enter the charging state to fill gas into the charging port of the refrigerator; controlling the operation of the motor of the refrigerator to allow the gas inside the refrigerator to flow; setting the minimum temperature drop value when the refrigerator is running to be higher than the current ambient dew point; when the operation of the refrigerator reaches a preset end condition, controlling the refrigerator to stop; switching the charging and exhaust system to the exhaust state to discharge the mixed gas in the refrigerator. By keeping the refrigerator in operation during inflation, the internal gas circulates, driving the compression piston and the regenerator of the refrigerator to intermittently reciprocate, repeatedly squeezing the dead volume in the refrigerator, so that the gas entering from the inflation port can fully purge the gas on the surface of the internal parts and fully mix with the internal air, thereby improving the replacement effect. The gas is then mixed with the gas retained in the dead volume of the refrigerator and then discharged, fully replacing the air inside the refrigerator, improving the purity of the helium finally filled, reducing the pressure during replacement and the number of replacements, and reducing the manufacturing cost.

[0042] Embodiment 1

[0043] Figure 1 The flowchart of a refrigerator charging and exhausting control method provided by the embodiment of the present disclosure is as follows. Figure 1 As shown, a refrigerator charging and exhaust control method includes steps S1-S4, specifically including:

[0044] S1. Control the charging and exhaust system to enter a charging state to charge gas into the charging port of the refrigerator.

[0045] In some embodiments, the command for controlling the charging and exhausting system to enter the charging state may be input by a worker, or may be automatically generated according to the operation of the refrigerator. In this embodiment, the start of step S1 is to respond to the charging and exhausting operation request for the refrigerator, thereby charging gas to replace the air inside the refrigerator. The charged gas is nitrogen.

[0046] In some embodiments, when the gas is charged into the charging port of the refrigerator, the control method further comprises: timing the charging time of the refrigerator;

[0047] Determine whether the inflation time reaches a preset time, and if so, proceed to step S2.

[0048] The preset time is 5 seconds to ensure that the charged gas meets the amount of initial operation, and then enter step S2 to control the operation of the refrigerator to fully mix the charged gas with the air inside the refrigerator.

[0049] S2, controlling the operation of the motor of the refrigerator to allow the gas inside the refrigerator to flow; the minimum temperature drop value when the refrigerator is running is set to be higher than the current ambient dew point;

[0050] In some embodiments, controlling the operation of the motor of the refrigerator includes: controlling the motor of the refrigerator to cyclically operate under preset operating conditions so that the refrigerator operates intermittently. The intermittently operated refrigerator can drive the compression piston and the regenerator to intermittently reciprocate, repeatedly squeezing the dead volume in the refrigerator, so that the gas entering from the charging port can fully purge the gas on the surface of the internal parts, so that the charged gas can be fully mixed with the gas retained in the refrigerator, thereby improving the replacement effect.

[0051] Furthermore, the preset condition is to control the motor of the refrigerator to operate at a variable speed.

[0052] Specifically, the motor of the refrigerator is controlled to operate, such as Figure 2 As shown, including:

[0053] S21, controlling the motor of the refrigerator to run at a first speed so that the refrigerator circulates the internal gas;

[0054] S22. When the duration of the motor running at the first speed reaches a preset cycle operation duration, the motor of the refrigerator is controlled to run at a second speed so that the gas in the refrigerator flows quickly until the duration of the motor running at the second speed continues to reach a preset high-speed operation duration.

[0055] Among them, the first speed is lower than the second speed; the operating time of the first speed is longer than the operating time of the second speed, so that the internal gas can be fully circulated by the refrigerator running at the first speed, and then the gas can be quickly flowed through the surface of the workpiece by the refrigerator running at the second speed, so as to take away the gas attached to the surface of the part, improve the mixing degree of the gas and the internal air, and then improve the replacement effect.

[0056] In this embodiment, the rotation speed of the motor is between 0 and 5000 revolutions.

[0057] S3. When the operation of the refrigerator reaches a preset end condition, control the refrigerator to stop.

[0058] In some embodiments, step S3 includes: when the number of cycles of the motor operation of the refrigerator reaches a preset end number, controlling the refrigerator to stop.

[0059] In this embodiment, the number of cycles is set to 3 times, and after the refrigerator motor cycles through the first speed and the second speed three times, it is controlled to shut down so that the air and gas inside are fully mixed.

[0060] In some embodiments, before step S4, that is, after shutting down the refrigerator, the control method further includes:

[0061] timing the duration of the refrigeration machine stopping operation;

[0062] When the duration of the refrigerator stopping operation reaches the preset shutdown duration, the step of switching the charging and exhaust system to the exhaust state is entered.

[0063] In this embodiment, the shutdown time is 10 seconds, so that the charged gas is fully mixed with the air in the refrigerator to improve the replacement effect.

[0064] S4, switching the charging and exhausting system to the exhausting state to discharge the mixed gas in the refrigerator.

[0065] In some embodiments, the charging and exhaust system includes an inflation valve and an exhaust valve, wherein in the inflation state, the inflation valve is opened and the exhaust valve is closed, so that the inflation and exhaust system fills gas into the refrigerator; when switching to the exhaust state, the exhaust valve is opened and the inflation valve is closed, so that the mixed gas in the refrigerator is discharged to improve the purity of the nitrogen finally charged.

[0066] Among them, in steps S1-S3, the charging and exhausting system is always in an inflating state, and the cold end temperature of the refrigerator is always controlled above 15 degrees Celsius during the inflation process, and will return to normal temperature during exhausting.

[0067] In some embodiments, after the inflation and exhaust replacement in the above steps, the inflation and exhaust system cycles through inflation and exhaust operations. The control method also includes, after step S4, controlling the inflation and exhaust system to cycle through inflation and exhaust operations according to preset inflation and exhaust durations.

[0068] In this embodiment, the charging and exhausting system has 10 cycles, with 1 minute of charging and 1 minute of exhausting, so as to fully replace the air inside the refrigerator and improve the purity of the nitrogen finally charged.

[0069] The refrigerator charging and exhaust control method provided by the embodiment of the present disclosure makes the refrigerator in operation during charging, so that the internal gas circulates, drives the compression piston and the regenerator of the refrigerator to intermittently reciprocate, and repeatedly squeezes the dead volume in the refrigerator, so that the gas entering from the charging port can fully purge the gas on the surface of the internal parts and fully mix with the internal air, thereby improving the replacement effect, so that it is discharged after mixing with the gas retained in the dead volume of the refrigerator, fully replacing the air inside the refrigerator, and improving the purity of the helium filled at the end. By running the refrigerator motor at a variable speed, the gas is first circulated at a low speed, so that the charged gas is fully mixed with the air inside the refrigerator, and then the refrigerator is operated at a high speed so that the airflow quickly flows through the surface of the workpiece, thereby taking away the gas attached to the surface of the parts, so as to fully replace the air inside the refrigerator and improve the purity of the nitrogen filled at the end.

[0070] Embodiment 2

[0071] Based on the above embodiments, this embodiment provides a refrigerator charging and exhaust control system, such as Figure 3 As shown, the control system includes a refrigerator 11, an air charging and exhaust system 12 and a control unit 13; the air charging hole of the refrigerator 11 is connected to the air circuit of the air charging and exhaust system 12; the refrigerator 11 and the air charging and exhaust system 12 are both connected to the control unit 13, and the control unit 13 is used to execute the steps of implementing the method described in the above embodiment.

[0072] Embodiment 3

[0073] Based on the above embodiments, this embodiment provides an application example.

[0074] In this embodiment, the steps of the control method in the above embodiment are explained with specific operating parameters. The specific contents are:

[0075] Connect the refrigerator to the charging and exhaust system and the control unit, adjust the charging valve pressure to 5 bar, and start the charging and exhaust program. The charging and exhaust system has 10 cycles, 1 minute for charging and 1 minute for exhausting. When the program starts, the charging valve opens, and high-pressure gas enters the interior of the box. When the charging valve opens, a signal will be sent to the motor control unit. At this time, the control unit starts timing, and starts to control the motor to rotate after 5 seconds. The low-speed operation drives the internal parts of the box to run, and the compression end compresses the gas to flow to the cold finger end. The gas then flows out from the top through the regenerator back to the interior of the box, allowing the gas to circulate. At this time, the high-pressure helium and air at the cold finger end are fully mixed under the stirring of the parts and the operating cycle. Figure 4As shown, the motor is controlled at 60r / min during low-speed operation. When the workpiece heat consumption is 250mw, the cold end temperature of the regenerator will be stable at 21°C at room temperature, and will not cause water vapor condensation. After running for 10S, the refrigerator speed is increased to 500r / min and maintained for 5s. When running at high speed, the gas flows quickly over the surface of the workpiece, thereby taking away the gas attached to the surface of the part. At this time, the cold end temperature will drop to 18°C. After three cycles, the refrigerator stops running. After maintaining for 10s, the charging and exhausting station closes the charging valve and opens the exhaust valve to exhaust the mixed gas. During the entire charging process, the cold end temperature will be controlled above 15°C, and will return to normal temperature during exhaust. Then enter the next charging cycle.

[0076] Embodiment 4

[0077] Based on the above embodiments, this embodiment provides a control device, such as Figure 5 As shown, it includes a memory 21, a processor 22 and a computer program stored in the memory 21, and the processor 22 executes the computer program to implement the steps of the method described in the above embodiment.

[0078] In some implementations of this embodiment, a computer readable storage medium is provided, such as Figure 6 As shown, a computer program 31 is stored thereon, and when the computer program 31 is executed by a processor, the steps of the method described in the above embodiment are implemented.

[0079] In some implementations of this embodiment, a computer program product is provided, including a computer program, which implements the steps of the method described in the above embodiment when executed by a processor.

[0080] The processor may include, but is not limited to, one or more processors or microprocessors. Each processor may be an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components to execute the method in the above embodiments.

[0081] The computer-readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, and the computer-readable storage medium may include but is not limited to, for example, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage media (e.g., hard disk, floppy disk, solid-state drive, removable disk, CD-ROM, DVD-ROM, Blu-ray disc, etc.).

[0082] The computer-readable storage medium may also store at least one computer executable program / instruction, which may be, for example, a computer-readable instruction. The computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The computer-readable storage medium may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device runs the computer-readable instructions stored on the computer-readable storage medium, the various methods described above may be performed.

[0083] In addition, the computer device may also include (but not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (eg, keyboard, mouse, speaker, etc.), etc.

[0084] The processor may communicate with external devices via an I / O bus via a wired or wireless network.

[0085] In one embodiment, the at least one computer executable instruction may also be compiled into or constitute a software product / computer program product, wherein one or more computer executable instructions are executed by a processor to perform the various functions and / or method steps in the embodiments described in the present technology.

[0086] In the embodiments provided in the present disclosure, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the above-mentioned module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0087] It should be noted that in the present disclosure, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0088] Although the embodiments disclosed in the present disclosure are as above, the above contents are only embodiments adopted for facilitating the understanding of the present disclosure and are not intended to limit the present disclosure. Any technician in the technical field to which the present disclosure belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present disclosure, but the scope of patent protection of the present disclosure shall still be subject to the scope defined in the attached claims.

Claims

1. A method for controlling the charging and exhausting of a refrigerator, It is characterized in that The refrigerator comprises a refrigerator body and a motor for driving the refrigerator body to operate; the charging port of the refrigerator is connected to an charging and exhausting system; the control method comprises the following steps: Controlling the charging and exhausting system to enter a charging state so as to charge gas into the charging port of the refrigerator; Controlling the operation of the motor of the refrigerator to allow the gas inside the refrigerator to flow; the minimum temperature drop value when the refrigerator is running is set to be higher than the current ambient dew point; When the operation of the refrigerator reaches a preset end condition, controlling the refrigerator to stop; The charging and exhaust system is switched to an exhaust state to discharge the mixed gas in the refrigerator.

2. A refrigerator charging and exhaust control method according to claim 1, It is characterized in that The controlling the operation of the motor of the refrigerator comprises: controlling the motor of the refrigerator to perform cyclic operation under preset operating conditions so that the refrigerator operates intermittently; When the operation of the refrigerator reaches a preset end condition, controlling the refrigerator to stop includes: when the number of cycles of the operation of the refrigerator motor reaches a preset end number, controlling the refrigerator to stop.

3. A refrigerator charging and exhaust control method according to claim 1 or 2, It is characterized in that The controlling the operation of the motor of the refrigerator comprises: Controlling the motor of the refrigerator to run at a first speed so that the refrigerator circulates the internal gas; When the duration of the motor running at the first speed reaches a preset cycle operation duration, the motor of the refrigerator is controlled to run at a second speed to allow the gas in the refrigerator to flow rapidly until the motor runs at the second speed for a preset high-speed operation duration.

4. A refrigerator charging and exhaust control method according to claim 3, It is characterized in that During the operation of the motor controlling the refrigerator, the first speed is lower than the second speed; and the operation time of the first speed is longer than the operation time of the second speed.

5. A refrigerator charging and exhaust control method according to claim 1, It is characterized in that Before the step of controlling the operation of the motor of the refrigerator, the control method includes: timing the charging time of the refrigerator; Determine whether the inflation time reaches a preset time. If so, enter the step of controlling the motor operation of the refrigerator.

6. A refrigerator charging and exhaust control method according to claim 1, It is characterized in that Before the step of switching the charging and exhaust system to the exhaust state, the method further comprises: timing the duration of the refrigeration machine stopping operation; When the duration of the refrigerator stopping operation reaches the preset shutdown duration, the step of switching the charging and exhaust system to the exhaust state is entered.

7. A refrigerator charging and exhaust control method according to claim 1, It is characterized in that The inflation and exhaust system cyclically performs inflation and exhaust operations; The control method further includes: after the step of switching the charging and exhaust system to the exhaust state to discharge the mixed gas in the refrigerator, controlling the charging and exhaust system to perform a cyclic operation according to a preset charging and exhausting time.

8. A refrigerator charging and exhaust control system, It is characterized in that It includes a refrigerator, an air charging and exhaust system and a control unit; the air charging hole of the refrigerator is connected to the air circuit of the air charging and exhaust system; the refrigerator and the air charging and exhaust system are both connected to the control unit, and the control unit is used to execute the steps of the control method described in any one of claims 1 to 8.

9. A control device comprising a memory, a processor and a computer program stored in the memory, It is characterized in that The processor executes the computer program to implement the steps of the method according to any one of claims 1 to 8.

10. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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