CN117146505A - Heating control method for air pressure balance hole of refrigeration equipment and refrigeration equipment - Google Patents
Heating control method for air pressure balance hole of refrigeration equipment and refrigeration equipment Download PDFInfo
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- CN117146505A CN117146505A CN202210571788.6A CN202210571788A CN117146505A CN 117146505 A CN117146505 A CN 117146505A CN 202210571788 A CN202210571788 A CN 202210571788A CN 117146505 A CN117146505 A CN 117146505A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 108
- 238000010438 heat treatment Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000009825 accumulation Methods 0.000 claims abstract description 53
- 101100083446 Danio rerio plekhh1 gene Proteins 0.000 claims abstract description 20
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 6
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/047—Pressure equalising devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/004—Control mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/008—Defroster control by timer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application particularly relates to a heating control method of an air pressure balance hole of refrigeration equipment, the refrigeration equipment, and the heating control method of the air pressure balance hole of the refrigeration equipment, comprising the following steps: judgment of t Accumulation of Whether or not t is satisfied min ≤t Accumulation of ≤t max1 Wherein t is min 、t max1 A first threshold value and a second threshold value of the accumulated running time of the compressor respectively; judgment of t Door opening Whether or not t is satisfied Door opening ＞t Door 1 Wherein t is Door 1 Is a first threshold value of door opening accumulated time; when t Door opening Satisfy t Door opening ＞t Door 1 At the time, the heating based on the identification module at the air pressure balance hole is obtainedA trigger signal; judgment of t Door opening Whether or not t is satisfied Door opening ＞t Door 2 Wherein t is Door 2 Is the second threshold value of the accumulated time of opening the door, t Door 2 ＜t Door 1 The method comprises the steps of carrying out a first treatment on the surface of the When t Door opening Satisfy t Door opening ＞t Door 2 And acquiring a heating trigger signal based on the identification module at the air pressure balance hole. The application has the advantages of reasonable control logic, convenient implementation and energy conservation.
Description
Technical Field
The application relates to the technical field of refrigeration, in particular to a heating control method of an air pressure balance hole of refrigeration equipment and the refrigeration equipment.
Background
At present, an air pressure balancing device is designed for an existing ultralow temperature refrigerator, a valve which can move along the vertical direction is designed in the existing ultralow temperature refrigerator, so that the pressure difference formed between the low temperature in the refrigerator and the external annular temperature overcomes the gravity of the valve, and then the pressure difference upwards moves to conduct the internal environment and the external environment of the refrigerator, so that air pressure balance is realized; however, if the air duct is blocked due to the problem of frosting and icing, the internal and external environments cannot be conducted, and the door is difficult to open due to excessive negative pressure, so that a heating control method of an air pressure balance hole of a refrigeration device and the refrigeration device are needed to be studied to solve the problems.
Disclosure of Invention
The application aims to provide a heating control method for an air pressure balance hole of refrigeration equipment, which is convenient to implement.
In order to achieve the above object, an embodiment of the present application provides a heating control method of an air pressure balance hole of a refrigeration apparatus, including:
acquiring accumulated operating time t of compressor of refrigeration equipment Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied min ≤t Accumulation of ≤t max1 Wherein t is min 、t max1 A first threshold value and a second threshold value of the accumulated running time of the compressor respectively;
when t Accumulation of Satisfy t min ≤t Accumulation of ≤t max1 When the door opening accumulated time t of the refrigeration equipment is obtained Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 1 Wherein t is Door 1 Is a first threshold value of door opening accumulated time;
when t Door opening Satisfy t Door opening ＞t Door 1 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when t Accumulation of Satisfy t Accumulation of ＞t max1 When the door opening accumulated time t of the refrigeration equipment is obtained Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 2 Wherein t is Door 2 Is the second threshold value of the accumulated time of opening the door, t Door 2 ＜t Door 1 ；
When t Door opening Satisfy t Door opening ＞t Door 2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
As a further improvement of an embodiment of the application, the accumulated running time t of the compressor of the refrigeration equipment is obtained Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied Accumulation of ≥t min Wherein t is min A first threshold value that is a cumulative operating time of the compressor;
when t Accumulation of Satisfy t Accumulation of ≥t min At this time, the continuous operation time t of the compressor of the refrigeration equipment is obtained (Continuous) At the time of acquisition of continuous operation time t (Continuous) At the time, judge t (Continuous) Whether or not t is satisfied (Continuous) ＞t max2 Wherein t is max2 Is a threshold for the continuous run time of the compressor;
when t (Continuous) Satisfy t (Continuous) ＞t max2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
As a further improvement of an embodiment of the application, the power-on operation time t of the refrigeration equipment is obtained Operation At the time of acquiring the power-on operation time t Operation At the time, judge t Operation Whether or not t is satisfied Operation ＞t max3 Wherein t is max3 Is a threshold value for the energized operating time of the refrigeration equipment;
when t Operation Satisfy t Operation ＞t max3 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
As a further improvement of one embodiment of the present application,
setting to enter a fault judging state when the heating trigger signal of the identification module is not acquired;
when entering the fault judging state, acquiring a preset time period T after opening and closing the door Presetting Whether the internal recognition module triggers a heating signal;
during a preset period of time T Presetting The inner recognition module does not trigger a heating signal, and determines that the air pressure balance hole is blocked;
when the air pressure balance hole is blocked, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
As a further improvement of an embodiment of the present application, t max1 Is in direct proportion to the ambient temperature of the refrigeration equipment.
As a further improvement of an embodiment of the present application, t max2 Is in direct proportion to the ambient temperature of the refrigeration equipment.
As a further improvement of an embodiment of the present application, t max3 Inversely proportional to the ambient temperature of the refrigeration appliance.
The application adopts another technical scheme that:
a refrigeration appliance comprising: a refrigeration system including a compressor; the box body is provided with a storage space; the door body is used for opening or closing the storage space; the refrigeration equipment also comprises an air pressure balancing device, wherein the air pressure balancing device is arranged on the door body and comprises an identification module, a heating module and an air pressure balancing hole, and the air pressure balancing hole is communicated with the inside and the outside of the storage space; the control unit comprises a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor realizes the heating control method of the air pressure balance hole of the refrigeration equipment when executing the computer program.
As a further improvement of an embodiment of the application, the air pressure balancing device further comprises a spring and a valve core movably arranged at the bottom of the spring, wherein the air pressure balancing hole comprises a first hole horizontally arranged and a second hole vertically arranged, one end of the first hole is communicated with the storage space, the other end of the first hole is communicated with the second hole, the top of the second hole is detachably connected with the spring, the valve core is arranged in the second hole and is used for movably opening or closing the second hole, and the heating module is arranged at the periphery of the second hole.
As a further improvement of an embodiment of the present application, the identification module is a pressure sensor disposed in the second hole, the spring is pressed against the pressure sensor when the second hole is in a closed state, and the spring is separated from the pressure sensor when the second hole is in an open state.
Compared with the prior art, the application has the beneficial effects that: the heating control method for the air pressure balance hole of the refrigeration equipment and the refrigeration equipment provided by the application analyze the accumulated door opening time t of the refrigeration equipment Door opening Accumulated running time t of compressor Accumulation of Continuous operation time t of compressor (Continuous) Power-on operation time t of refrigeration equipment Operation How to influence the pressure change in the refrigeration equipment, thereby controlling the heating of the air pressure balance hole through different judging logics, avoiding the air pressure balance hole from being unable to be conducted inside and outside the refrigeration equipment due to the blockage of the air pressure balance hole, and having reasonable control logic, convenient implementation and savingAbout energy.
Drawings
FIG. 1 is a flow chart of a method for controlling heating of an air pressure balance hole of a refrigeration apparatus according to the present application;
fig. 2 is a schematic side view of a heating control method of an air pressure balance hole of the refrigeration equipment.
In the figure: 1. an air pressure balancing device; 11. a housing; 12. an air duct; 13. a mounting base; 14. a spring slide rail; 15. a spring; 16. a valve core; 17. an air pressure balance hole; 171. a first hole; 172. a second hole; 18. and a heating module.
Detailed Description
The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present application can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present application.
The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The numerical values in this embodiment are for convenience of description, and the embodiment is described in a more simple manner, so that the description is limited, and other numerical values may be set based on the same logic.
The present application relates generally to: the utility model provides a heating control method of air pressure balance hole of refrigeration plant, refrigeration plant refers to ultra-low temperature refrigeration plant, and ultra-low temperature refrigeration plant is because the inside and outside difference in temperature of refrigeration plant is big, and there is certain pressure differential in the inside and outside of refrigeration plant, leads to very easily in the refrigeration plant negative pressure too big and causes the difficulty of opening the door, consequently, air pressure balance hole intercommunication refrigeration plant is inside and outside, and air pressure balance hole balances the inside and outside pressure of refrigeration plant after closing the door, further reduces the required power when opening the door.
Under normal conditions, when the internal and external air pressures of the ultralow temperature refrigeration equipment are in an unbalanced state, the identification module at the air pressure balance hole can identify the unbalance of the internal and external pressure at the air pressure balance hole, and the air pressure balance hole is easy to frost, so that the air pressure balance hole needs to be heated.
Referring to fig. 1, a heating control method for an air pressure balance hole of a refrigeration device includes the following steps:
acquiring accumulated operating time t of compressor of refrigeration equipment Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied min ≤t Accumulation of ≤t max1 Wherein t is min 、t max1 A first threshold value and a second threshold value of the accumulated running time of the compressor respectively; accumulated running time t of compressor Accumulation of Is a reference condition for judging the heating control of the air pressure balance hole;
when t Accumulation of Satisfy t min ≤t Accumulation of ≤t max1 When the door opening accumulated time t of the refrigeration equipment is obtained Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 1 Wherein t is Door 1 Is a first threshold value of door opening accumulated time;
when t Door opening Satisfy t Door opening ＞t Door 1 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when t Accumulation of Satisfy t Accumulation of ＞t max1 When the door opening accumulated time t of the refrigeration equipment is obtained Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 2 Wherein t is Door 2 Is the second threshold value of the accumulated time of opening the door, t Door 2 ＜t Door 1 ；
When t Door opening Satisfy t Door opening ＞t Door 2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
In the first embodiment, the inventors found, based on experience and experiment, that t min Set to 8h, t max1 Setting for 12h; when the accumulated operation of the compressor reaches 8 hours and the internal and external air pressures are in an unbalanced state due to frequent door opening actions, the balance holes and the inside of the refrigeration equipment are easy to frost, and the balance holes need to be heated. When the accumulated running of the compressor is less than 8 hours, the probability that the internal and external air pressures of the refrigeration equipment are in an equilibrium state is high.
From the experience of the inventors, t Door opening 1 is set to 120s, t Door 2 Let 90s. When 8h is less than or equal to t Accumulation of When the time is less than or equal to 12 hours, t Accumulation of Heating the air pressure balance hole for more than 120 s; when t Accumulation of At > 12h, t Accumulation of And the air pressure balance hole is heated for more than 90 seconds, so that the force required by opening the door can be reduced, and the use feeling of a user is improved.
In the second embodiment, the accumulated operating time t of the compressor of the refrigeration apparatus is obtained Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied Accumulation of ≥t min Wherein t is min A first threshold value that is a cumulative operating time of the compressor;
when t Accumulation of Satisfy t Accumulation of ≥t min At this time, the continuous operation time t of the compressor of the refrigeration equipment is obtained (Continuous) At the time of acquisition of continuous operation time t (Continuous) At the time, judge t (Continuous) Whether or not t is satisfied (Continuous) ＞t max2 Wherein t is max2 Is a threshold for the continuous run time of the compressor;
when t (Continuous) Satisfy t (Continuous) ＞t max2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
Wherein, the inventor obtains t according to experience and experiments (Continuous) Set to 2h. As described above, when the cumulative operation of the compressor reaches 8 hours and the continuous operation of the compressor is continued for 2 hours, the temperature in the refrigerating apparatus is low, which results in an increase in negative pressure in the refrigerating apparatus and also in pressure balance Kong Jieshuang, and therefore, the pressure balance holes need to be heated at this time. It will be appreciated that continuous operation of the compressor, with the same operating time, is more likely to cause an increase in negative pressure in the refrigeration appliance than cumulative operation of the compressor, and therefore requires a cumulative operating time t Accumulation of And continuous run time t (Continuous) Both factors are considered, so that the air pressure balance hole can be heated more reasonably.
In the third embodiment, the energization operation time t of the refrigeration apparatus is acquired Operation At the time of acquiring the power-on operation time t Operation At the time, judge t Operation Whether or not t is satisfied Operation ＞t max3 Wherein t is max3 Is a threshold value for the energized operating time of the refrigeration equipment;
when t Operation Satisfy t Operation ＞t max3 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
Wherein, the inventor obtains t according to experience and experiments max3 When the refrigerating equipment is electrified and runs for 72 hours, the air pressure balance hole needs to be heated.
Further, when the heating trigger signal of the identification module is not acquired, setting to enter a fault judgment state;
when entering the fault judging state, acquiring a preset time period T after opening and closing the door Presetting Whether the internal recognition module triggers a heating signal;
during a preset period of time T Presetting The inner recognition module does not trigger a heating signal, and determines that the air pressure balance hole is blocked;
when the air pressure balance hole is blocked, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
It will be appreciated that blockage of the air pressure balance holes may cause the identification module to trigger an abnormality in the heating signal. If the fault judging state is entered, the timing described above is cleared, and if the fault judging state occurs for a plurality of times, the parameters appearing above need to be adjusted to correct the heating parameters of the air pressure balance hole, thereby improving the heating efficiency of the air pressure balance hole.
When the environment temperature is higher, the heat exchange of the refrigerating system is poor, the compressor needs to be started frequently for a long time to achieve the refrigerating effect, and the second threshold t of the accumulated running time of the compressor max1 In need of improvement, preferably t max1 Is in direct proportion to the ambient temperature of the refrigeration equipment.
Similarly, t max2 Is in direct proportion to the ambient temperature of the refrigeration equipment.
The higher the ambient temperature, the greater the temperature difference between the inside and outside of the refrigeration appliance, therefore, preferably, t max3 Inversely proportional to the ambient temperature of the refrigeration appliance.
By reasonable setting of t max1 、t max2 、t max3 The relation with the ambient temperature of the refrigeration equipment, thereby leading the heating control method of the air pressure balance hole of the refrigeration equipment to be more reasonable and having more practical significance.
The application adopts another technical scheme that:
a refrigeration appliance comprising: the refrigeration system comprises a compressor. The box body is internally provided with a storage space for storing articles to be refrigerated, and the storage space is in the refrigeration equipment indicated in the foregoing description. The door body is used for opening or closing the storage space.
As shown in fig. 2, the refrigeration device further comprises an air pressure balancing device arranged on the door body, wherein the air pressure balancing device comprises an identification module, a heating module and an air pressure balancing hole, and the air pressure balancing hole is communicated with the inside and the outside of the storage space.
The refrigerating equipment further comprises a control unit, wherein the control unit comprises a memory and a processor, the memory stores a computer program capable of running on the processor, and the processor realizes the heating control method of the air pressure balance hole of the refrigerating equipment when executing the computer program.
Further, the air pressure balancing device 1 further comprises a shell 11, an air duct 12 and a mounting seat 13, one end of the mounting seat 13 is communicated with the storage space, and the other end of the mounting seat is communicated with the air duct 12. The air duct 12 is connected to the side wall of the housing 11, and the air duct 12 is disposed between the housing 11 and the mounting base 13. Wherein, the shell 11, the air duct 12 and the mounting seat 13 jointly define an air pressure balance hole.
Further, the air pressure balancing device 1 further comprises a spring 15 and a valve core 16 movably arranged at the bottom of the spring 15, the air pressure balancing hole comprises a first hole 171 horizontally arranged and a second hole 172 vertically arranged, wherein the air duct 12 and the mounting seat 13 define the first hole 171, and the housing 11 defines the second hole 172. One end of the first hole 171 is communicated with the storage space, and the other end of the first hole 171 is communicated with the second hole 172.
Further, the sliding rail of the spring 15 is disposed at the top in the second hole 172 and extends downward along the second hole 172, the top end of the spring 15 is connected to the top of the sliding rail of the spring 15, the bottom end of the spring 15 is connected to the valve core 16, and the lower end surface of the valve core 16 is matched with the bottom end of the second hole 172. The valve spool 16 is used to movably open or close the second bore 172.
Further, the heating module 18 is disposed at the outer periphery of the second hole 172, and preferably, the heating module 18 is disposed at the outer periphery of the air duct 12.
Further, the identification module is a pressure sensor arranged at the bottom of the sliding rail of the spring 15, when the second hole 172 is in a closed state, the spring 15 is pressed on the pressure sensor, and when the second hole 172 is in an open state, the spring 15 is separated from the pressure sensor.
Further, the identification module is a metal elastic sheet arranged at the bottom of the sliding rail of the spring 15, and the displacement change of the metal elastic sheet enables the contact to be conducted, so that a switch signal trigger control unit is formed.
Further, the recognition module is a temperature recognition module, the temperature sensing probes are distributed on the outer side of the air duct 12, and when the valve core 16 is opened to cause the temperature of the air duct 12 to be obviously increased through sensing that the temperature increase amplitude in unit time is larger than a threshold value, the control unit is triggered.
The pressure change, displacement change or temperature change at the air pressure balance hole is identified through the identification module, so that a heating trigger signal is sent to the control unit, and the air pressure balance device has the advantages of being simple in structure and easy to trigger.
Compared with the prior art, the heating control method for the air pressure balance hole of the refrigeration equipment and the refrigeration equipment provided by the application have the advantage that the accumulated door opening time t of the refrigeration equipment is analyzed Door opening Accumulated running time t of compressor Accumulation of Continuous operation time t of compressor (Continuous) Power-on operation time t of refrigeration equipment Operation How to influence the pressure change in the refrigeration equipment, thereby control the heating of the air pressure balance hole through different judgment logics, avoid the air pressure balance hole from being blocked, and lead the air pressure balance hole to be unable to be conducted inside and outside the refrigeration equipment, and have the advantages of reasonable control logic, convenient implementation and energy conservation.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the scope of the application as defined by the appended claims.
Claims (10)
1. A heating control method of an air pressure balance hole of a refrigeration apparatus, comprising:
acquiring accumulated operating time t of compressor of refrigeration equipment Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied min ≤t Accumulation of ≤t max1 Wherein t is min 、t max1 A first threshold value and a second threshold value of the accumulated running time of the compressor respectively;
when t Accumulation of Satisfy t min ≤t Accumulation of ≤t max1 When the door opening accumulation of the refrigeration equipment is obtainedTime t Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 1 Wherein t is Door 1 Is a first threshold value of door opening accumulated time;
when t Door opening Satisfy t Door opening ＞t Door 1 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when t Accumulation of Satisfy t Accumulation of ＞t max1 When the door opening accumulated time t of the refrigeration equipment is obtained Door opening After the accumulated time t of opening the door is obtained Door opening At the time, judge t Door opening Whether or not t is satisfied Door opening ＞t Door 2 Wherein t is Door 2 Is the second threshold value of the accumulated time of opening the door, t Door 2 ＜t Door 1 ；
When t Door opening Satisfy t Door opening ＞t Door 2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
2. A heating control method for air pressure balance hole of refrigeration equipment is characterized in that,
acquiring accumulated operating time t of compressor of refrigeration equipment Accumulation of At the time of acquiring the accumulated running time t Accumulation of At the time, judge t Accumulation of Whether or not t is satisfied Accumulation of ≥t min Wherein t is min A first threshold value that is a cumulative operating time of the compressor;
when t Accumulation of Satisfy t Accumulation of ≥t min At this time, the continuous operation time t of the compressor of the refrigeration equipment is obtained (Continuous) At the time of acquisition of continuous operation time t (Continuous) At the time, judge t (Continuous) Whether or not t is satisfied (Continuous) ＞t max2 Wherein t is max2 Is a threshold for the continuous run time of the compressor;
when t (Continuous) Satisfy t (Continuous) ＞t max2 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
3. A heating control method for air pressure balance hole of refrigeration equipment is characterized in that,
obtaining the power-on operation time t of the refrigeration equipment Operation At the time of acquiring the power-on operation time t Operation At the time, judge t Operation Whether or not t is satisfied Operation ＞t max3 Wherein t is max3 Is a threshold value for the energized operating time of the refrigeration equipment;
when t Operation Satisfy t Operation ＞t max3 Acquiring a heating trigger signal based on an identification module at the air pressure balance hole;
when the heating trigger signal of the identification module is obtained, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
4. A heating control method of an air pressure balance hole of a refrigeration apparatus according to any one of claims 1, 2 or 3, wherein:
setting to enter a fault judging state when the heating trigger signal of the identification module is not acquired;
when entering the fault judging state, acquiring a preset time period T after opening and closing the door Presetting Whether the internal recognition module triggers a heating signal;
during a preset period of time T Presetting The inner recognition module does not trigger a heating signal, and determines that the air pressure balance hole is blocked;
when the air pressure balance hole is blocked, a heating module of the refrigeration equipment is started to heat the air pressure balance hole.
5. The heating control method of an air pressure balance hole of a refrigeration apparatus according to claim 1, wherein: t is t max1 With the environment of the refrigeration equipmentThe temperature is in direct proportion.
6. The heating control method of an air pressure balance hole of a refrigeration apparatus according to claim 2, wherein: t is t max2 Is in direct proportion to the ambient temperature of the refrigeration equipment.
7. A heating control method of an air pressure balance hole of a refrigeration apparatus according to claim 3, wherein: t is t max3 Inversely proportional to the ambient temperature of the refrigeration appliance.
8. A refrigeration appliance comprising:
a refrigeration system including a compressor;
the box body is provided with a storage space;
the door body is used for opening or closing the storage space;
the method is characterized in that: the refrigeration apparatus may further comprise a heat exchanger,
the air pressure balancing device is arranged on the door body and comprises an identification module, a heating module and an air pressure balancing hole, and the air pressure balancing hole is communicated with the inside and the outside of the storage space;
a control unit comprising a memory and a processor, said memory storing a computer program executable on said processor, said processor implementing a method for controlling heating of an air pressure balance hole of a refrigeration appliance according to any of claims 1-7 when said computer program is executed.
9. The refrigeration appliance of claim 8 wherein: the air pressure balancing device further comprises a spring and a valve core movably arranged at the bottom of the spring, wherein the air pressure balancing hole comprises a first hole which is horizontally arranged and a second hole which is vertically arranged, one end of the first hole is communicated with the storage space, the other end of the first hole is communicated with the second hole, the top of the second hole is detachably connected with the spring, the valve core is arranged in the second hole and used for movably opening or closing the second hole, and the heating module is arranged at the periphery of the second hole.
10. The refrigeration appliance of claim 8 wherein: the identification module is a pressure sensor arranged in the second hole, when the second hole is in a closed state, the spring is pressed on the pressure sensor, and when the second hole is in an open state, the spring is separated from the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571788.6A CN117146505A (en) | 2022-05-24 | 2022-05-24 | Heating control method for air pressure balance hole of refrigeration equipment and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571788.6A CN117146505A (en) | 2022-05-24 | 2022-05-24 | Heating control method for air pressure balance hole of refrigeration equipment and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117146505A true CN117146505A (en) | 2023-12-01 |
Family
ID=88901397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571788.6A Pending CN117146505A (en) | 2022-05-24 | 2022-05-24 | Heating control method for air pressure balance hole of refrigeration equipment and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117146505A (en) |
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2022
- 2022-05-24 CN CN202210571788.6A patent/CN117146505A/en active Pending
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