CN106766576A - A kind of refrigeration system with automatic defrosting system - Google Patents
A kind of refrigeration system with automatic defrosting system Download PDFInfo
- Publication number
- CN106766576A CN106766576A CN201710098002.2A CN201710098002A CN106766576A CN 106766576 A CN106766576 A CN 106766576A CN 201710098002 A CN201710098002 A CN 201710098002A CN 106766576 A CN106766576 A CN 106766576A
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- Prior art keywords
- compressor
- defrosting
- time
- evaporator
- electrical heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010257 thawing Methods 0.000 title claims abstract description 90
- 238000005057 refrigeration Methods 0.000 title claims abstract description 78
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000003507 refrigerant Substances 0.000 claims abstract description 26
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005457 optimization Methods 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- 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
- F25D21/006—Defroster control with electronic control circuits
-
- 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
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a kind of refrigeration system with automatic defrosting system, including compressor, condenser, evaporator, defrosting controller and hollow refrigeration space；The refrigerant outlet of the compressor is connected with the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected with the refrigerant inlet of the evaporator, the refrigerant outlet of the evaporator is connected with the refrigerant inlet of the compressor, electrical heating wire is provided with the inwall of the evaporator, the evaporator is located in the refrigeration space；The defrosting controller, is connected with the compressor and the electrical heating wire respectively, for controlling the electrical heating wire to carry out defrosting operation to the evaporator.A kind of refrigeration system with automatic defrosting system disclosed by the invention, it periodically automatically can carry out defrosting operation to the evaporator in refrigeration system, ensure the refrigeration of evaporator, improve the integrally cooling efficiency of refrigeration system, it is to avoid unnecessary electric energy loss.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of refrigeration system with automatic defrosting system.
Background technology
At present, cryogenic refrigerating system is widely used in all trades and professions, facilitates the work and life of people,
Indispensable important component in through working and living as people.
For current refrigeration system (such as the refrigeration system in freezer, refrigerator car, refrigerator), it is used in long-time
Afterwards, the easy frosting of evaporator therein, so that evaporator absorbs the ability of external refrigeration space (such as freezer) interior thermic load
Decline, reduce the refrigeration of evaporator, and then cause the integrally cooling efficiency of refrigeration system to decline, cause unnecessary electricity
Can loss.
It is usually at present that periodically control starts to steaming manually by people to be defrosted to the evaporator in refrigeration system
The defrosting operation of device is sent out, defrosting operation generally starts the electrical heating wire that evaporator inside is set, so as to realize to evaporator
Carry out heating defrosting.But, because people are often due to working and living busy, easily forget to start defrosting operation, easily lead
Cause the evaporator in refrigeration system not defrosted for a long time, badly influence the refrigeration of evaporator, bring unnecessary
Electric energy loss.
Therefore, at present in the urgent need to developing a kind of technology, it can periodically automatically to the evaporator in refrigeration system
Carry out defrosting operation, it is ensured that the refrigeration of evaporator, improve the integrally cooling efficiency of refrigeration system, it is to avoid unnecessary electric energy
Loss.
The content of the invention
In view of this, it is an object of the invention to provide a kind of refrigeration system with automatic defrosting system, it can be regular
Defrosting operation automatically is carried out to the evaporator in refrigeration system, it is ensured that the refrigeration of evaporator, improve the whole of refrigeration system
System cold efficiency, it is to avoid unnecessary electric energy loss, may advantageously facilitate the wide popularization and application of refrigeration system, with great life
Produce practice significance.
Therefore, the invention provides a kind of refrigeration system with automatic defrosting system, including compressor, condenser, steaming
Hair device, defrosting controller and hollow refrigeration space；
The refrigerant outlet of the compressor is connected with the refrigerant inlet of the condenser, the refrigeration of the condenser
Agent outlet is connected with the refrigerant inlet of the evaporator, the refrigeration of the refrigerant outlet of the evaporator and the compressor
Agent entrance is connected, and electrical heating wire is provided with the inwall of the evaporator, and the evaporator is located in the refrigeration space；
The defrosting controller, is connected with the compressor and the electrical heating wire respectively, for controlling the electricity to add
Heated filament carries out defrosting operation to the evaporator.
Wherein, the defrosting controller, in each preset loop cycles, when detecting the operation of the compressor
Between, when the compressor run time time span be more than or equal to preset critical when, send start control signal to
The electrical heating wire is opened in the electrical heating wire, control, so as to carry out defrosting operation to the evaporator.
Wherein, the defrosting controller is additionally operable to the time span when the run time of the compressor more than or equal to pre-
If during critical value, startup control signal being retransmited in the non-usage time interval in each preset loop cycles and being added to the electricity
Heated filament, control is opened the electrical heating wire and carries out defrosting operation to the evaporator.
Wherein, the defrosting controller is also connected with the compressor, in each preset loop cycles, passing through
Startup optimization moment and moment out of service described in real time record during compressor each run, calculate and obtain the compressor
It is each run time, then real-time accumulated, finally obtain the run time of the compressor in the preset loop cycles.
Wherein, the defrosting controller is also connected with least one temperature sensor, and the temperature sensor is located at institute
State in refrigeration space, the temperature sensor is for the temperature value in refrigeration space described in real-time detection and is sent to the defrosting
Controller；
Accordingly, the defrosting controller, in each preset loop cycles, temperature sensor described in real-time reception
It is the temperature value sent and the real time record time of reception, real-time accumulated when there is the temperature fall time interval that temperature value is persistently reduced
Each temperature fall time is interval, finally obtains the whole temperature fall times in the preset loop cycles interval and be defined as this and default follow
The run time of the compressor in the ring cycle.
Wherein, the defrosting controller is also connected with the power supply module having in the compressor, the power supply module
For providing work electricity consumption for the compressor；
Accordingly, the defrosting controller is additionally operable in each preset loop cycles, in compressor described in real-time detection
The current output value situation of change and real time record detection moment of the power supply module having, continue to increase when there is current output value
Electric current increase time interval when, it is real-time accumulated per primary current increase time interval, finally obtain in the preset loop cycles
Whole electric currents increase the run time of time interval and the compressor being defined as in the preset loop cycles.
Wherein, an electrical heating switch is connected with the electrical heating wire.
Wherein, the defrosting controller, is additionally operable to defrost the evaporator in the control unlatching electrical heating wire
After operation, shutdown signal is sent in predetermined time period to the electrical heating wire, the electrical heating wire is closed in control.
The technical scheme that the present invention is provided more than, compared with prior art, has the invention provides one kind
The refrigeration system of automatic defrosting system, it periodically automatically can carry out defrosting operation to the evaporator in refrigeration system, it is ensured that
The refrigeration of evaporator, improves the integrally cooling efficiency of refrigeration system, it is to avoid unnecessary electric energy loss, may advantageously facilitate system
The wide popularization and application of cooling system, is of great practical significance.
Brief description of the drawings
A kind of primary structure block diagram of refrigeration system with automatic defrosting system that Fig. 1 is provided for the present invention；
A kind of a kind of operation of the specific embodiment of refrigeration system with automatic defrosting system that Fig. 2 is provided for the present invention
Assembling schematic diagram；
In figure, 100 is compressor, and 200 is condenser, and 201 is choke valve, and 300 is evaporator, and 301 is electrical heating wire,
400 is defrosting controller, and 500 is refrigeration space, and 600 is Condensing units.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings with implementation method to this
Invention is described in further detail.
Referring to Fig. 1, Fig. 2, the invention provides a kind of refrigeration system with automatic defrosting system, including compressor 100,
Condenser 200, evaporator 300, defrosting controller 400 and hollow refrigeration space 500 (for example, one hollow freezer or
Refrigerator body)；
Wherein, the refrigerant outlet of the compressor 100 is connected with the refrigerant inlet of the condenser 200, described
The refrigerant outlet of condenser 200 is connected with the refrigerant inlet of the evaporator 300, the refrigerant of the evaporator 300
Outlet is connected with the refrigerant inlet of the compressor 100, and electrical heating wire 301 is provided with the inwall of the evaporator 300,
The evaporator 300 is located in the refrigeration space 500, and the internal cavity of the refrigeration space 500 is used to prevent from needing refrigeration
Article.
It should be noted that the compressor 100 be used for by the refrigerant compression of low-temp low-pressure into HTHP refrigeration
Agent, after condenser 200 carries out condensation process, enters back into and steamed in the evaporator 300 in the refrigeration space 500
Hair, so as to realize, to lowering the temperature inside the refrigeration space 500, realizing to the whole of the internal environment of the refrigeration space 500
Kind of refrigeration cycle.
In the present invention, in addition it is also necessary to explanation, the gaseous refrigerant formed after being evaporated in evaporator 300, continues to follow
Ring is entered into the compressor 100, realizes recycling for refrigerant.
In the present invention, the defrosting controller 400, is connected with the compressor 100 and the electrical heating wire 301 respectively
Connect, in each preset loop cycles, detect the run time of the compressor, when the compressor run time when
Between length when being more than or equal to preset critical, send and start control signal to the electrical heating wire 301, control is opened described
Electrical heating wire 301, so as to carry out defrosting operation to the evaporator 300, i.e., described defrosting controller 400 is used to control the electricity
301 pairs of evaporators 300 of heater strip carry out defrosting operation.
It should be noted that described each preset loop cycles can be the time cycle of user is set circulation execution,
For example can be daily, per hour or every 3 hours, other any one time cycles to be can also be certainly.It is described default
Critical value for example can be able to be half a day (12 hours) according to any setting is carried out the need for user in advance.If do not reached
To preset critical, then defrosting operation is not carried out.
In the present invention, implement, in order to detect operation of the compressor 100 in each preset loop cycles
Time, the defrosting controller 400 is also connected with the compressor 100, for (such as every in each preset loop cycles
My god), by startup optimization moment and moment out of service described in real time record during 100 each run of compressor, calculate and obtain
It is each run time of the compressor 100, then real-time accumulated, finally obtain the compression in the preset loop cycles
The run time (i.e. run time of the compressor after being run multiple times is added) of machine.
It should be noted that startup optimization moment and moment out of service during on 100 each run of compressor,
Defrosting controller 400 can be by reading the startup optimization signal in the compressor 100 and signal out of service and remembering in real time
Record the corresponding moment and obtain.
In the present invention, implement, in order to detect operation of the compressor 100 in each preset loop cycles
Time, the defrosting controller 400 can also be connected with least one temperature sensor, and the temperature sensor is located at described
In refrigeration space 500, the temperature sensor is used for refrigeration space 500 described in real-time detection, and (such as fresh food therein is cold
Hide room or freezing room) in temperature value and be sent to the defrosting controller 400；
Accordingly, the defrosting controller 400, in each preset loop cycles, temperature described in real-time reception to be passed
Temperature value that sensor is sent and the real time record time of reception, when there is temperature fall time that temperature value persistently reduces and be interval, in real time
Accumulative each temperature fall time is interval, finally obtains that the whole temperature fall times in the preset loop cycles are interval and to be defined as this pre-
If (i.e. compressor causes there is refrigeration in refrigeration system after operation to the run time of the compressor in cycle period
Time).
In the present invention, implement, in order to detect operation of the compressor 100 in each preset loop cycles
Time, the defrosting controller 400 can also be connected with the power supply module having in the compressor 100, the power supply mould
Block is used to provide work electricity consumption (for example can be connected with external ac power source transformer) for the compressor；
Accordingly, the defrosting controller 400 is additionally operable in each preset loop cycles, compressor described in real-time detection
The current output value situation of change and real time record detection moment of the power supply module having in 100, hold when there is current output value
It is real-time accumulated to increase time interval per primary current when continuous increased electric current increases time interval, finally obtain preset loop week
Whole electric currents in phase increase time interval and the run time of the compressor being defined as in the preset loop cycles (is pressed
Contracting machine needs the time of power consumption after operation).
In the present invention, in order to carry out defrosting behaviour in the low frequency usage time interval of compressor or in the non-usage time period
Make, the effect that lifting is defrosted to evaporator, while avoiding needing what is carried out with refrigeration system to the defrosting operation of evaporator
Evaporator evaporation cooling refrigeration operation do not collide, that is to say, that when compressor carries out refrigerating operaton, electrical heating wire do not run and
Do not carry out defrosting operation.Therefore, the defrosting controller 400 is additionally operable to be more than when the time span of the run time of the compressor
Or during equal to preset critical, startup control signal is retransmited in the non-usage time interval in each preset loop cycles
To the electrical heating wire 301, control is opened described 301 pairs of evaporators 300 of electrical heating wire and carries out defrosting operation；
Implement, the non-usage time interval in described each preset loop cycles is specially：Preset at each and followed
In the ring cycle, the other times outside the run time of the compressor are interval.Implement, each preset loop week
Non-usage time interval in phase can be：In each preset loop cycles, the compressor 100 according to real time record is every
Startup optimization moment and moment out of service during secondary operation, each run time interval of the compressor 100 for being obtained
Outside other times it is interval；Or：In each preset loop cycles, the other times outside each temperature fall time interval
It is interval：Or be：In each preset loop cycles, the other times increased per primary current outside time interval are interval.
It should be noted that by exclusive method, the non-usage time interval of the compressor 100 can be obtained.For example pass through
Overwriting, 8 a.m. at 10 points in the morning and each run time zone that at 4 points in 2 pm to afternoon is the compressor 100
Between, then other time intervals are non-usage time interval of the compressor 100 in preset loop cycles.
In the present invention, implement, an electrical heating switch is connected with the electrical heating wire 301, the electricity adds
Thermal switch can be a magnetic valve, so that the defrosting controller 400 can send startup control signal to the electrical heating
Switch, so that control to open the electrical heating wire 301 close, it is, of course, also possible to send shutdown signal switched to the electrical heating, from
And control to close the electrical heating wire 301.
In the present invention, implement, the defrosting controller 400 is additionally operable to open the electrical heating wire in control
After 301 pairs of evaporators 300 carry out defrosting operation, (such as 10 minutes) send shutdown signal to institute in predetermined time period
State electrical heating wire 301, the electrical heating wire 301 is closed in control, such that it is able to while the defrosting effect to evaporator is ensured,
Control carries out the time of defrosting operation, it is to avoid the overlong time of defrosting operation, so as to avoid causing unnecessary electric energy loss.
In the present invention, implement, the defrosting controller 400 can be for central processor CPU, at data signal
Reason device DSP or single-chip microprocessor MCU.
Referring to Fig. 2, implement, the compressor 100 and condenser 200 constitute Condensing units 600 together, press
Contracting condensation unit 600 constitutes the refrigerating function module in the refrigeration system of present invention offer together with the evaporator 300.
Implement, a choke valve 201 is additionally provided between the condenser 200 and the evaporator 300, it is described
Choke valve 201 is used to control the refrigerant flow size between the condenser 200 and the evaporator 300.It is specific real
Now go up, the choke valve 201 can be heating power expansion valve or electromagnetic expanding valve.
Therefore, a kind of refrigeration system with automatic defrosting system for being provided for the present invention, it can be by refrigeration
Ruuning situation of the compressor in each preset loop cycles (such as 24 hours, i.e., daily) is estimated, so that using self adaptation
Mode the circulation for defrosting dynamically is adjusted to ebb run time section (the i.e. non-usage time zone of compressor of refrigeration system
Between), therefore, it can the work and life being convenient for people to, and the purchase cost of hardware need not be increased considerably.
In sum, compared with prior art, a kind of refrigeration system with automatic defrosting system that the present invention is provided,
It periodically automatically can carry out defrosting operation to the evaporator in refrigeration system, it is ensured that the refrigeration of evaporator, improve system
The integrally cooling efficiency of cooling system, it is to avoid unnecessary electric energy loss, may advantageously facilitate the wide popularization and application of refrigeration system, tool
There is great production practices meaning.
Additionally, a kind of refrigeration system with automatic defrosting system that the present invention is provided, it can avoid manual intervention from removing
The link of frost operation, flexible design is workable.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of refrigeration system with automatic defrosting system, it is characterised in that including compressor (100), condenser (200),
Evaporator (300), defrosting controller (400) and hollow refrigeration space (500)；
The refrigerant outlet of the compressor (100) is connected with the refrigerant inlet of the condenser (200), the condenser
(200) refrigerant outlet is connected with the refrigerant inlet of the evaporator (300), the refrigerant of the evaporator (300)
Outlet is connected with the refrigerant inlet of the compressor (100), and electrical heating wire is provided with the inwall of the evaporator (300)
(301), the evaporator (300) is in the refrigeration space (500)；
Defrosting controller (400), is connected, with the compressor (100) and the electrical heating wire (301) for controlling respectively
Make the electrical heating wire (301) carries out defrosting operation to the evaporator (300).
2. there is the refrigeration system of automatic defrosting system as claimed in claim 1, it is characterised in that the defrosting controller
(400), in each preset loop cycles, the run time of the compressor being detected, when the run time of the compressor
Time span be more than or equal to preset critical when, send start control signal give the electrical heating wire (301), control is opened
The electrical heating wire (301) is opened, so as to carry out defrosting operation to the evaporator (300).
3. there is the refrigeration system of automatic defrosting system as claimed in claim 1, it is characterised in that the defrosting controller
(400) it is additionally operable to when the time span of the run time of the compressor is more than or equal to preset critical, it is default at each
Startup control signal is retransmited in non-usage time interval in cycle period to the electrical heating wire (301), institute is opened in control
State electrical heating wire (301) carries out defrosting operation to the evaporator (300).
4. there is the refrigeration system of automatic defrosting system as claimed in claim 1 or 2, it is characterised in that the defrosting control
Device (400) is also connected with the compressor (100), in each preset loop cycles, being pressed by described in real time record
Startup optimization moment and moment out of service during contracting machine (100) each run, calculate and obtain each of the compressor (100)
Run time, it is then real-time accumulated, finally obtain the run time of the compressor in the preset loop cycles.
5. there is the refrigeration system of automatic defrosting system as claimed in claim 1 or 2, it is characterised in that the defrosting control
Device (400) is also connected with least one temperature sensor, and the temperature sensor is located in the refrigeration space (500), institute
Temperature sensor is stated for the temperature value in refrigeration space (500) described in real-time detection and the defrosting controller is sent to
(400)；
Accordingly, defrosting controller (400), in each preset loop cycles, TEMP described in real-time reception
It is temperature value that device is sent and the real time record time of reception, tired in real time when there is temperature fall time that temperature value persistently reduces and be interval
The each temperature fall time of meter is interval, finally obtains the interval of the whole temperature fall times in the preset loop cycles and is defined as this and presets
The run time of the compressor in cycle period.
6. there is the refrigeration system of automatic defrosting system as claimed in claim 1 or 2, it is characterised in that the defrosting control
Device (400) is also connected with the power supply module having in the compressor (100), and the power supply module is used to be the compressor
Work electricity consumption is provided；
Accordingly, defrosting controller (400) is additionally operable in each preset loop cycles, compressor described in real-time detection
(100) the current output value situation of change of the power supply module having in and real time record detection moment, when there is current output value
It is real-time accumulated to increase time interval per primary current when the electric current for continuing to increase increases time interval, finally obtain the preset loop
Whole electric currents in cycle increase the run time of time interval and the compressor being defined as in the preset loop cycles.
7. there is the refrigeration system of automatic defrosting system as claimed any one in claims 1 to 3, it is characterised in that described
An electrical heating switch is connected with electrical heating wire (301).
8. there is the refrigeration system of automatic defrosting system as claimed any one in claims 1 to 3, it is characterised in that described
Defrosting controller (400), is additionally operable to carry out defrosting behaviour to the evaporator (300) in the control unlatching electrical heating wire (301)
After work, shutdown signal is sent in predetermined time period to the electrical heating wire 301, the electrical heating wire (301) is closed in control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098002.2A CN106766576A (en) | 2017-02-23 | 2017-02-23 | A kind of refrigeration system with automatic defrosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098002.2A CN106766576A (en) | 2017-02-23 | 2017-02-23 | A kind of refrigeration system with automatic defrosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106766576A true CN106766576A (en) | 2017-05-31 |
Family
ID=58958910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710098002.2A Pending CN106766576A (en) | 2017-02-23 | 2017-02-23 | A kind of refrigeration system with automatic defrosting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106766576A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106291A (en) * | 2018-01-25 | 2018-06-01 | 天津商业大学 | The control method and control device of start/stop of compressor in Parallel sets |
| CN115031462A (en) * | 2022-05-16 | 2022-09-09 | 长虹美菱股份有限公司 | Refrigerator refrigerating system and defrosting method thereof |
-
2017
- 2017-02-23 CN CN201710098002.2A patent/CN106766576A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106291A (en) * | 2018-01-25 | 2018-06-01 | 天津商业大学 | The control method and control device of start/stop of compressor in Parallel sets |
| CN115031462A (en) * | 2022-05-16 | 2022-09-09 | 长虹美菱股份有限公司 | Refrigerator refrigerating system and defrosting method thereof |
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Application publication date: 20170531 |