CN109000339A - Defrost control device and air-conditioner set - Google Patents
Defrost control device and air-conditioner set Download PDFInfo
- Publication number
- CN109000339A CN109000339A CN201810867854.8A CN201810867854A CN109000339A CN 109000339 A CN109000339 A CN 109000339A CN 201810867854 A CN201810867854 A CN 201810867854A CN 109000339 A CN109000339 A CN 109000339A
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- China
- Prior art keywords
- assembly
- heat exchanger
- control device
- outdoor heat
- air conditioner
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- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to air-conditioning equipment fields, in particular to a kind of defrosting control device and air-conditioner set.Air-conditioner set includes room air conditioner and outdoor heat exchanger, the control device that defrosts includes pressure detecting assembly and control assembly, pressure detecting assembly is set to the pressure value that the muffler of outdoor heat exchanger is subject to the refrigerant detected in muffler, control assembly is electrically connected with pressure detecting assembly and room air conditioner, control assembly receives the pressure value that pressure detecting assembly detects, and control whether room air conditioner starts to freeze according to pressure value, and hot wind is discharged to start to defrost by outdoor heat exchanger when starting refrigeration.The case where by above-mentioned setting, being defrosted with realizing to the outdoor heat exchanger of air-conditioner set, and then effectively the heating efficiency of room air conditioner avoided to decline, and then enough heats can not be provided for interior, or even will appear cancel closedown.
Description
Technical field
The present invention relates to air-conditioning equipment fields, in particular to a kind of defrosting control device and air-conditioner set.
Background technique
Current domestic air conditioner in winter heating operation when, outdoor heat exchanger usually as evaporator absorb heat, when
When outdoor environment temperature is too low or heating operation overlong time, the temperature of the refrigerant pipe of outdoor heat exchanger will lead to lower than zero
It spends, the moisture in outdoor air is frosted in the condensation of outdoor heat exchanger surface, or even can generate icing phenomenon.
Inventor it has been investigated that, the heat transfer resistance meeting between refrigerant and air after outdoor heat exchanger frosting, in pipeline
It greatly increases, and then influences the heating effect of entire air-conditioner set, cause the heating efficiency of room air conditioner to decline, and then can not
The case where providing enough heats for interior, or even will appear cancel closedown.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is, a kind of defrosting control device and air-conditioner set are provided to improve
The above problem.
The embodiment of the invention provides a kind of defrosting control device, applied to including outdoor heat exchanger and room air conditioner
Air-conditioner set, the defrosting control device include:
Pressure detecting assembly, the pressure detecting assembly are set to the muffler of outdoor heat exchanger to detect in the muffler
The pressure value that is subject to of refrigerant；
Control assembly, which is electrically connected with the pressure detecting assembly and the room air conditioner, described
Control assembly receives the pressure value that the pressure detecting assembly detects, and controls the room air conditioner according to the pressure value
Whether start to freeze, and hot wind is discharged to start to defrost by the outdoor heat exchanger when starting refrigeration.
Optionally, in above-mentioned defrosting control device, the first preset value and first is prestored in the control assembly and is preset
Duration, when the control assembly the pressure value be less than first preset value when, control the room air conditioner and start to make
It is cold that hot wind is discharged to start to defrost to pass through the outdoor heat exchanger, and reach described first in advance starting defrosting to defrosting duration
If when duration, controlling the room air conditioner and being heated.
Optionally, in above-mentioned defrosting control device, the air-conditioner set further includes four-way reversing valve, the four-way commutation
Valve is connected between the room air conditioner and the outdoor heat exchanger, and is electrically connected with the control assembly, the control group
Part is also used to control the working condition of the room air conditioner according to the pressure value and by the four-way reversing valve.
Optionally, in above-mentioned defrosting control device, the defrosting control device further includes alarm, the alarm with
The control assembly is electrically connected, and prestores the second preset value in the control assembly, the alarm is also used in the pressure
Value controls the alarm and issues alarm signal when being less than second preset value.
Optionally, in above-mentioned defrosting control device, the defrosting control device further includes timer and alarm, described
Timer and alarm are electrically connected with the control assembly respectively, and the control assembly is also used to the timing according to the timer
Duration and the pressure value control the alarm and issue alarm signal.
Optionally, in above-mentioned defrosting control device, the pressure detecting assembly is multiple, and each pressure detecting group
Part is electrically connected with the control assembly respectively, and each pressure detecting assembly is respectively arranged in the muffler described in detection
The pressure value of refrigerant in muffler.
Optionally, in above-mentioned defrosting control device, the defrosting control device further includes power switch, the control group
Part is electrically connected by the power switch with mains supply.
Optionally, in above-mentioned defrosting control device, the pressure detecting assembly is pressure sensor, the control assembly
For PLC controller.
The present invention also provides a kind of air-conditioner set, including room air conditioner, outdoor heat exchanger and defrosting control device, institutes
It states outdoor heat exchanger to connect with the room air conditioner, the defrosting control device is set to the outdoor heat exchanger, described to remove
White control device includes:
Pressure detecting assembly, the pressure detecting assembly are set to the muffler of outdoor heat exchanger to detect in the muffler
The pressure value that is subject to of refrigerant；
Control assembly, which is electrically connected with the pressure detecting assembly and the room air conditioner, described
Control assembly receives the pressure value that the pressure detecting assembly detects, and controls the room air conditioner according to the pressure value
Whether start to freeze, and hot wind is discharged to start to defrost by the outdoor heat exchanger when starting refrigeration.
Optionally, in above-mentioned air-conditioner set, the first preset value and the second preset value are prestored in the control assembly, and
First preset value is less than second preset value, and the control assembly is less than first preset value in the pressure value
When, it controls the room air conditioner and starts refrigeration hot wind is discharged to start to defrost by the outdoor heat exchanger, until described
When the pressure value that pressure detecting assembly detects is greater than second preset value, controls the room air conditioner and freeze.
Defrosting control device and air-conditioner set provided in an embodiment of the present invention, air-conditioner set includes outdoor heat exchanger and interior
Air conditioner, defrosting control device detect the muffler by setting control assembly and in the muffler setting of outdoor heat exchanger
The pressure detecting assembly for the pressure value that interior refrigerant is subject to, so that the pressure that control assembly can be detected according to pressure detecting assembly
Force value controls the working condition of the room air conditioner.The outdoor heat exchanger to the air-conditioner set is realized by above-mentioned setting
It defrosts, and then effectively the heating efficiency of room air conditioner is avoided to decline, and then enough heats can not be provided for interior, very
To the case where will appear cancel closedown.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram of air-conditioner set provided by the invention.
Fig. 2 is a kind of connection block diagram of control device that defrosts provided by the invention.
Fig. 3 is a kind of another structural schematic diagram of air-conditioner set provided by the invention.
Fig. 4 is a kind of connection block diagram of control device that defrosts provided by the invention.
Icon: 10- air-conditioner set；100- defrosting control device；110- pressure detecting assembly；120- control assembly；140-
Timer；150- alarm；160- power switch；200- room air conditioner；300- outdoor heat exchanger；310- muffler；400-
Four-way reversing valve；500- throttle part.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually
The component for the embodiment of the present invention being described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Referring to Fig. 1, being air-conditioner set 10 provided in an embodiment of the present invention, the air-conditioner set 10 includes room air conditioner
200, outdoor heat exchanger 300 and defrosting control device 100, the outdoor heat exchanger 300 connect with the room air conditioner 200
It connects, the defrosting control device 100 is set to the outdoor heat exchanger 300.
It is appreciated that the air-conditioner set 10 includes component more more or fewer than Fig. 1, such as can also be changed including four-way
To valve 400 and throttle part 500 etc., it is not specifically limited herein.
It should be noted that the defrosting control device 100 that the present embodiment proposes is suitable for the air conditioner with heat-production functions
Group 10, such as heat pump air conditioner unit.Wherein, the structure of the room air conditioner 200 can be wall-hanging, cabinet-type or movable type etc.
Multiplicity.
In the present embodiment, it is changed with the air-conditioner set 10 including defrosting control device 100, room air conditioner 200, outdoor
It is illustrated for hot device 300, four-way reversing valve 400 and throttle part 500, wherein it is swollen that throttle part 500 can be electronics
Swollen valve.Defrosting control device 100 is set to outdoor heat exchanger 300, when being heated using the air-conditioner set 10, the room
The high temperature and pressure refrigerant of the exhaust outlet discharge of external heat exchanger 300 flows into room air conditioner after the commutation of four-way reversing valve 400
200, by the ducting system of room air conditioner 200 heat lasting to indoor offer, while refrigerant is from room air conditioner 200
Condensed, temperature is declined, then flows into throttle part 500, by throttle part 500 decompression after vapour-liquid mix refrigerant into
Enter outdoor heat exchanger 300, refrigerant evaporates in outdoor heat exchanger 300, and the low-temp low-pressure refrigerant after evaporation passes through four-way reversing valve
After 400 commutations, the muffler 310 of outdoor heat exchanger 300 is returned to.
In winter in the lower situation of outdoor temperature, air-conditioner set 10 is in heating operations, since outdoor heat exchanger 300 is made
For evaporator, heat is absorbed, the steam in air is will lead to and enters condensation in muffler 310 and frost, and then influences muffler 310
The pyroconductivity when refrigerant at place is exchanged heat is controlled to influence the performance of air-conditioner set 10 by using including the defrosting
The air-conditioner set 10 of device 100 processed can effectively be removed the frost in exhaust outlet with starting to freeze to outdoor discharge hot gas,
And then avoid influencing pyroconductivity when refrigerant is exchanged heat in muffler 310, so that the performance of air-conditioner set 10 is improved, and
The heating efficiency decline of room air conditioner 200 is avoided, and then enough heats can not be provided for interior, or even will appear exception
The case where shutdown.
Incorporated by reference to Fig. 2 and Fig. 3, the present invention also provides a kind of defrosting control devices that can be applied to above-mentioned air-conditioner set 10
100, the defrosting control device 100 includes: pressure detecting assembly 110 and pressure detecting assembly 110.
The pressure detecting assembly 110 is set to the muffler 310 of outdoor heat exchanger 300 to detect the muffler 310
The pressure value that interior refrigerant is subject to, the control assembly 120 and the pressure detecting assembly 110 and the room air conditioner 200
It is electrically connected, the control assembly 120 receives the pressure value that the pressure detecting assembly 110 detects, and according to the pressure
Force value controls whether the room air conditioner 200 starts to freeze, and is discharged when starting refrigeration by the outdoor heat exchanger 300
Hot wind is to start to defrost.
It by above-mentioned setting, is defrosted with realizing to the outdoor heat exchanger 300 of air-conditioner set 10, and controls the defrosting
Device 100 processed is more accurate when being defrosted, and then effectively the heating efficiency of room air conditioner 200 is avoided to decline, and then can not
The case where providing enough heats for interior, or even will appear cancel closedown.
Wherein, the pressure detecting assembly 110 can be pressure sensor, pressure detecting instrument or pressure measuring instruments,
This is not especially limited, and is configured according to actual needs.
The control assembly 120 can be a kind of IC chip, the processing capacity with signal.Above-mentioned control group
Part 120 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc.；It can also be digital signal processor (DSP), specific integrated circuit (ASIC), can compile
Journey logic controller (Programmable Logic Controller, PLC) field programmable gate array (FPGA) or other
Programmable logic device, discrete gate or transistor logic, discrete hardware components.General processor can be microprocessor
Or the processor is also possible to any conventional processor etc..
Optionally, in the present embodiment, the pressure detecting assembly 110 is pressure sensor, and the control assembly 120 is
PLC controller.
The mode that the pressure detecting assembly 110 detects the pressure value that the refrigerant in the muffler 310 is subject to can be
Real-time monitoring is also possible to every one setting duration and carries out one-time detection, is configured, do not make according to actual needs herein
It is specific to limit.
Optionally, in the present embodiment, the pressure detecting assembly 110 detect the refrigerant in the muffler 310 by
The mode of pressure value be that the pressure detecting assembly 110 detects the refrigerant in the muffler 310 at interval of a setting duration
The pressure value being subject to.
Wherein, which can be but not limited to half an hour, 40 minutes or 50 minutes, be not specifically limited herein,
It is configured according to actual needs.
Optionally, in the present embodiment, a length of 45 minutes when the setting.
The mode that the pressure sensor detects the pressure value of the refrigerant in the muffler 310 can be, the return-air
Through-hole is provided on pipe 310, the pressure sensor is set to the through hole, and the probe of the pressure sensor is across institute
It states through-hole to extend in the muffler 310, to detect the pressure value of the refrigerant in muffler 310.
Wherein, the control assembly 120 controls the side of the working condition of the room air conditioner 200 according to the pressure value
Formula can control the room air conditioner 200 according to the pressure value for the control assembly 120 and work in heating state, refrigeration
State or stop working state.
The first preset value and the first preset duration are prestored in the control assembly 120, when the control assembly 120 is in institute
When stating pressure value less than first preset value, controls the room air conditioner 200 and start refrigeration by the outdoor heat exchange
Hot wind is discharged to start to defrost in device 300, and when starting defrosting and reaching first preset duration to defrosting duration, described in control
Room air conditioner 200 is heated.
Wherein, the metering method when starting defrosting and reaching first preset duration to defrosting duration can be use
Elapsed time clock in PLC controller carries out timing to defrosting duration when starting defrosting and reaches the first preset duration, is also possible to
It controls the timing duration that extremely defrosts that can carry out with the device of timing when starting defrosting connect with the control assembly 120 and reaches the
One preset duration, is not specifically limited herein.First preset value can be 0.18Mpa, 0.2Mpa or 0.22Mpa, optional
, in the present embodiment, first preset value is 0.2Mpa, that is, starts to defrost when the pressure value is less than 0.2Mpa.Institute
Stating the first preset duration can be but not limited to 2 minutes, 3 minutes or 5 minutes, be not specifically limited herein, as long as can be realized
Defrosting.
Wherein, the quantity of the pressure detecting assembly 110 can be one, be also possible to it is multiple, for ensure pressure detecting
As a result accuracy is to reach better defrosting effect.Optionally, in the present embodiment, the pressure detecting assembly 110 is more
It is a, and each pressure detecting assembly 110 is electrically connected with the control assembly 120 respectively, each pressure detecting assembly 110 divides
It is not set to the pressure value that the refrigerant in the muffler 310 is detected in the muffler 310.
To be easy to implement the working condition for controlling air-conditioner set 10 according to the pressure value, optionally, in the present embodiment,
The air-conditioner set 10 further includes four-way reversing valve 400, the four-way reversing valve 400 be connected to the room air conditioner 200 with
It between the outdoor heat exchanger 300, and is electrically connected with the control assembly 120, the control assembly 120 is also used to according to
Pressure value and the working condition that the room air conditioner 200 is controlled by the four-way reversing valve 400.
For convenient for can effectively prompt user when the pressure value is too low, in the present embodiment, the defrosting control is filled
Setting 100 further includes alarm 150, and the alarm 150 is electrically connected with the control assembly 120, pre- in the control assembly 120
There is the second preset value, the alarm 150 is also used to control the report when the pressure value is less than second preset value
Alert device 150 issues alarm signal.
Wherein, second preset value can be 0.16Mpa, 0.15Mpa or 0.14Mpa, in the present embodiment, described
Two preset values are 0.15Mpa, i.e., when the pressure value is less than 0.15Mpa, the control assembly 120 is also used to control the report
Alert device 150 issues alarm signal.Optionally, in the present embodiment, the control assembly 120 can also be with the outdoor heat exchanger
300 electrical connections, when the pressure value is less than second preset value, the control assembly 120 can also control the interior
Air conditioner 200 and outdoor heat exchanger 300 stop working.
Wherein, the alarm 150 can be voice guard, light crossing-signal, combined aural and visual alarm or Short message alarm, root
It is chosen according to actual demand, and in the present embodiment, the alarm 150 is set to the room air conditioner 200, in order to
User checks alarm condition.
It, can to realize when the outdoor heat exchanger 300 or 200 failure of room air conditioner can not achieve the effect of defrosting
Effectively prompt user, optionally, in the present embodiment, the defrosting control device 100 further includes timer 140 and alarm
150, the timer 140 and alarm 150 are electrically connected with the control assembly 120 respectively, and the control assembly 120 is also used to
The alarm 150, which is controlled, according to the timing duration of the timer 140 and the pressure value issues alarm signal.
Specifically, prestoring the second preset duration in the control assembly 120, which can be one point
Clock, two minutes or three minutes, are not specifically limited herein.Start when the control assembly 120 controls the room air conditioner 200
When refrigeration, when the timer 140, which starts timing, reaches second preset duration to timing, the pressure detecting assembly
110 pressure values detected do not change or pressure value more hour, and the control assembly 120 controls the alarm 150 and sends out
Alarm signal out.
Incorporated by reference to Fig. 4, to avoid in summer, when the air-conditioner set 10 is for realizing refrigeration, the pressure detecting assembly
110 and the control assembly 120 also work in turn result in expend electric energy the case where, it is optionally, in the present embodiment, described to remove
White control device 100 further includes power switch 160, and the control assembly 120 passes through the power switch 160 and mains supply electricity
Connection.
To sum up, a kind of defrosting control device 100 and air-conditioner set 10 provided by the invention, air-conditioner set 10 include Interior Space
Device 200 and outdoor heat exchanger 300 are adjusted, defrosting control device 100 passes through setting pressure detecting assembly 110 and control assembly 120, and
Pressure detecting assembly 110 be set to the muffler 310 of outdoor heat exchanger 300 with detect the refrigerant in the muffler 310 by
Pressure value, control assembly 120 is electrically connected with the pressure detecting assembly 110 and the room air conditioner 200, the control
Component 120 processed receives the pressure value that the pressure detecting assembly 110 detects, and controls the Interior Space according to the pressure value
The working condition of device 200 is adjusted, is defrosted with realizing to the outdoor heat exchanger 300 of air-conditioner set 10, and then effectively avoid interior
The heating efficiency of air conditioner 200 declines, and then enough heats can not be provided for interior, or even will appear the feelings of cancel closedown
Condition.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects.It can be mechanical connection, be also possible to be electrically connected.It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.In addition, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as indicating
Or imply relative importance.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of defrosting control device, applied to the air-conditioner set including room air conditioner and outdoor heat exchanger, which is characterized in that
The defrosting control device includes:
Pressure detecting assembly, it is cold in the muffler to detect which is set to the muffler of outdoor heat exchanger
The pressure value that matchmaker is subject to；
Control assembly, the control assembly are electrically connected with the pressure detecting assembly and the room air conditioner, the control
Component receives the pressure value that the pressure detecting assembly detects, and whether controls the room air conditioner according to the pressure value
Start to freeze, and hot wind is discharged to start to defrost by the outdoor heat exchanger when starting refrigeration.
2. defrosting control device according to claim 1, which is characterized in that it is default to prestore first in the control assembly
Value and the first preset duration, when the control assembly the pressure value be less than first preset value when, control the interior
Air conditioner starts refrigeration so that hot wind is discharged to start to defrost by the outdoor heat exchanger, and is starting to be up to when defrosting extremely defrosts
When to first preset duration, controls the room air conditioner and heated.
3. defrosting control device according to claim 1, which is characterized in that the air-conditioner set further includes four-way commutation
Valve, the four-way reversing valve are connected between the room air conditioner and the outdoor heat exchanger, and electric with the control assembly
Connection, the control assembly are also used to control the room air conditioner according to the pressure value and by the four-way reversing valve
Working condition.
4. defrosting control device according to claim 1, which is characterized in that the defrosting control device further includes alarm
Device, the alarm are electrically connected with the control assembly, the second preset value are prestored in the control assembly, the alarm is also
Alarm signal is issued for controlling the alarm when the pressure value is less than second preset value.
5. defrosting control device according to claim 1, which is characterized in that the defrosting control device further includes timer
And alarm, the timer and alarm are electrically connected with the control assembly respectively, the control assembly is also used to according to institute
The timing duration and the pressure value for stating timer control the alarm and issue alarm signal.
6. defrosting control device according to claim 1, which is characterized in that the pressure detecting assembly is multiple, and each
The pressure detecting assembly is electrically connected with the control assembly respectively, and each pressure detecting assembly is respectively arranged at the return-air
The pressure value of the refrigerant in the muffler is detected in pipe.
7. defrosting control device according to claim 1, which is characterized in that the defrosting control device further includes that power supply is opened
It closes, the control assembly is electrically connected by the power switch with mains supply.
8. defrosting control device according to claim 1, which is characterized in that the pressure detecting assembly is pressure sensing
Device, the control assembly are PLC controller.
9. a kind of air-conditioner set, which is characterized in that described including room air conditioner, outdoor heat exchanger and defrosting control device
Outdoor heat exchanger is connect with the room air conditioner, and the defrosting control device is set to the outdoor heat exchanger, the defrosting
Control device includes:
Pressure detecting assembly, it is cold in the muffler to detect which is set to the muffler of outdoor heat exchanger
The pressure value that matchmaker is subject to；
Control assembly, the control assembly are electrically connected with the pressure detecting assembly and the room air conditioner, the control
Component receives the pressure value that the pressure detecting assembly detects, and whether controls the room air conditioner according to the pressure value
Start to freeze, and hot wind is discharged to start to defrost by the outdoor heat exchanger when starting refrigeration.
10. air-conditioner set according to claim 9, which is characterized in that prestore the first preset value in the control assembly
With the second preset value, and first preset value is less than second preset value, and the control assembly is less than in the pressure value
When first preset value, controls the room air conditioner and start refrigeration so that hot wind is discharged to start by the outdoor heat exchanger
Defrosting, until controlling the room conditioning when pressure value that the pressure detecting assembly detects is greater than second preset value
Device freezes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810867854.8A CN109000339A (en) | 2018-08-01 | 2018-08-01 | Defrost control device and air-conditioner set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810867854.8A CN109000339A (en) | 2018-08-01 | 2018-08-01 | Defrost control device and air-conditioner set |
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| Publication Number | Publication Date |
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| CN109000339A true CN109000339A (en) | 2018-12-14 |
Family
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| CN201810867854.8A Pending CN109000339A (en) | 2018-08-01 | 2018-08-01 | Defrost control device and air-conditioner set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473475A (en) * | 2020-05-29 | 2020-07-31 | 刘兵兵 | Energy-saving air conditioner circulating system with automatic defrosting function and control method |
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Application publication date: 20181214 |