CN205939550U - Air condensing units's controlling means and air condensing units - Google Patents
Air condensing units's controlling means and air condensing units Download PDFInfo
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- CN205939550U CN205939550U CN201620448667.2U CN201620448667U CN205939550U CN 205939550 U CN205939550 U CN 205939550U CN 201620448667 U CN201620448667 U CN 201620448667U CN 205939550 U CN205939550 U CN 205939550U
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- blower fan
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses an air condensing units's controlling means, air condensing units includes fan, compressor and cross valve, controlling means includes: the start control unit is used for control the fan with the compressor starts, first record unit is used for the record the fan with it is long during start -up after the compressor starts, first judgement unit is used for judging whether the length is greater than the first time interval of predetermineeing during the start -up, switching -over the control unit is used for grow up during the start -up in it is first when predetermineeing time interval, control the cross valve commutates. After adopting this controlling means, even there is liquid refrigerant before air condensing units starts, fan and compressor -running be first predetermine time interval after, this part liquid refrigerant has also become gas in the heat transfer circulation, just be difficult to receive hydraulic during cross valve switching -over after this and strike, therefore the reliability can improve air condensing units and move the time. The utility model also discloses an air condensing units.
Description
Technical field
This utility model is related to air-conditioner technical field, more particularly, to a kind of control device of air-conditioner outdoor unit.This practicality
New further relate to a kind of air-conditioner outdoor unit.
Background technology
Air-conditioner was shut down after start operating a period of time, and the air-conditioner of shutdown stands one at low ambient temperatures
After the section time, due to the impact of the factor such as refrigerant migration and pressure balance promotion, cold-producing medium can be present in room with liquid condition
In the pipeline and heat exchanger of outer machine.As air-conditioner starting up again, have the cross valve that liquid refrigerant flows through air-conditioner,
If now cross valve execution switch operation, the slide block of cross valve will be collided with liquid refrigerant, lead to cross valve easily because of liquid
The impact of state cold-producing medium and occur damaging, the problems such as cause air-conditioner heat exchange fault.Therefore, it is reliable when traditional air-conditioner runs
Property is low.
Utility model content
The purpose of this utility model is to provide a kind of control device of air-conditioner outdoor unit, during improving air-conditioner outdoor unit operation
Reliability.Of the present utility model another object is that provides a kind of air-conditioner outdoor unit.
To achieve these goals, this utility model provides following technical scheme：
A kind of control device of air-conditioner outdoor unit, described air-conditioner outdoor unit includes blower fan, compressor and cross valve, including：
Start control unit, for controlling described blower fan and described compressor start；
First recording unit, for recording the starting duration after described blower fan and described compressor start；
First judging unit, for judging whether described starting duration is more than the first prefixed time interval；
Commutation control unit, for when described starting duration is more than described first prefixed time interval, controlling described four
Port valve is commutated.
Wherein in an embodiment, described startup control unit includes：
Air-blower control unit, for controlling described blower fan to start；
Second recording unit, for recording blower fan starting duration；
Second judging unit, for judging whether described blower fan starting duration is more than the second prefixed time interval；
Compressor control unit, for when described blower fan starting duration is more than described second prefixed time interval, controlling
Described compressor start.
Wherein in an embodiment, also include：
Ambient temperature detector unit, for detecting current environmental temperature；
Acquiring unit, described for being obtained by the corresponding table of numerical value between ambient temperature and described first prefixed time interval
Corresponding described first prefixed time interval of current environmental temperature.
Wherein in an embodiment：
Also include：Heating mode detector unit, for detecting whether to deposit before described blower fan and described compressor start
In heating mode signal；
Described startup control unit is used for controlling described blower fan and described compression after described heating mode signal is detected
Machine starts；
Described commutation control unit is used for when being not detected by described heating mode signal directly controlling described cross valve to enter
Row commutation.
A kind of air-conditioner outdoor unit, including the control device described in any of the above-described.
The control device of above-mentioned air-conditioner outdoor unit first records the starting duration after blower fan and compressor start, and in this startup
When duration is more than the first prefixed time interval, then cross valve is controlled to be commutated, even if air-conditioner outdoor unit has liquid before starting
After cold-producing medium, blower fan and compressor operating first prefixed time interval, this partially liq cold-producing medium is also in recuperated cycle
It is changed into gas, be just not readily susceptible to fluid power impact during hereafter cross valve commutation, thus this control device can improve air-conditioning outdoor
Reliability when machine runs.
The air-conditioner outdoor unit that this utility model provides applies above-mentioned control, because this control device has above-mentioned technology effect
Really, the air-conditioner outdoor unit comprising this control device also has corresponding technique effect.
Brief description
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this utility model described in
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of air-conditioner outdoor unit；
The schematic flow sheet of the control method that Fig. 2 provides for an embodiment of the present utility model；
The schematic flow sheet of the control method that Fig. 3 provides for another embodiment of the present utility model；
The schematic flow sheet of the control method that Fig. 4 provides for another embodiment of the present utility model；
The structured flowchart of the control device that Fig. 5 provides for this utility model embodiment.
Description of reference numerals：
110- blower fan, 120- compressor, 130- cross valve, 140- temperature-sensitive bag, 150- electrical appliance kit.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
This utility model is further detailed.
This utility model embodiment provides a kind of control method of air-conditioner outdoor unit, as shown in figure 1, this air-conditioner outdoor unit bag
Include blower fan 110, compressor 120 and cross valve 130, as shown in Fig. 2 this utility model embodiment provide control method include with
Lower step：
S100, control blower fan 110 and compressor 120 start, and record starting duration t1；
The boot sequence of blower fan 110 and compressor 120 can flexibly select, for example, first start compressor 120, start wind afterwards
Machine 110, and the starting duration t being recorded1Can be the starting duration of blower fan 110 or compressor 120 startup when
Long.
S200, judge above-mentioned starting duration t1Whether it is more than the first prefixed time interval t01, if it is, entering step
S300, otherwise continues executing with this judgement step；
The first prefixed time interval t herein01Can be determined by experiment, for example, pass through many experiments, determine air conditioning chamber
Liquid refrigerant in outer machine through how long after be fully converted to gaseous refrigerant.Certainly, due to recording in step S100
Starting duration t1Can be the starting duration of blower fan 110 or the starting duration of compressor 120, therefore test
During it is ensured that this starting duration t1Self-consistentency, to ensure the first prefixed time interval t01Accuracy.In addition,
This first prefixed time interval t01Be not necessarily required to completely the same with the data that obtains in experimentation it is also possible to ratio is tested
The data arriving is slightly larger, and to ensure that liquid refrigerant is thoroughly converted into gaseous refrigerant, but whether liquid refrigerant is totally converted
The protection domain of the control method of this utility model embodiment offer is provided for gaseous refrigerant.
S300, control cross valve 130 are commutated.
Aforementioned starting duration t1More than the first prefixed time interval t01When, liquid refrigerant is in blower fan 110 and compression
Have passed through recuperated cycle several times in the presence of machine 120, also imply that the liquid refrigerant in air-conditioner outdoor unit is expected
Be converted into gaseous refrigerant, now control cross valve 130 commutate, with the slide block directly contact of cross valve 130 be exactly gaseous state system
Cryogen.After cross valve 130 is commutated, the blower fan according to the conventional control process control indoor apparatus of air conditioner of air-conditioner starts, empty
Indoor set air-out is adjusted to start, air-conditioner normally runs.
As can be seen here, after the control method that this utility model embodiment provides first records blower fan 110 and compressor 120 startup
Starting duration t1, and in this starting duration t1More than the first prefixed time interval t01When, then control cross valve 130 to be changed
To even if air-conditioner outdoor unit has liquid refrigerant before starting, blower fan 110 and compressor 120 run the first prefixed time interval
t01Afterwards, this partially liq cold-producing medium has also been changed into gas in recuperated cycle, is just not susceptible to during hereafter cross valve 130 commutation
To fluid power impact, thus this control method can improve reliability when air-conditioner outdoor unit runs.
As shown in figure 3, in further embodiment, above-mentioned steps S100 specifically include：
S110, control blower fan 110 start, and record blower fan starting duration t2；
S120, judge blower fan starting duration t2Whether it is more than the second prefixed time interval t02, if it is, entering step
S130, otherwise continues executing with this judgement step；
This second prefixed time interval t02Flexibly can be selected according to operating experience, if enable to blower fan 110 prior to
Compressor 120 starts.
S130, control compressor 120 start, and determine starting duration t1.
" starting duration t is determined in this step1" can be in two kinds of situation：The first, this starting duration t1Refer to blower fan
110 starting duration, then need the starting duration t being compared1When being equal to the blower fan startup recorded in step S110
Long t2；Second, this starting duration t1Refer to the starting duration of compressor 120, then just can remember further in step S130
Record compressor start duration t3, and by this compressor start duration t3Value give starting duration t1, starting duration t is obtained with this1
Size.In above-mentioned two situations, the preferred the latter of this utility model embodiment, this is because the starting duration of compressor is permissible
More objective, more accurately reflection heat transfer process carry out degree.
Step S200 in step S210 shown in a Fig. 3 upper embodiment corresponding with step S310 and step S300, this
Place repeats no more.
Above-described embodiment controls blower fan 110 to start prior to compressor 120, and the purpose of this measure is it is ensured that compressor 120 starts
After can carry out effective heat exchange.One, for the normal operation of air-conditioner outdoor unit, can the improving in advance of heat exchange process
The heat exchange efficiency of air-conditioner outdoor unit；Two, after compressor 120 starts, the liquid refrigerant in air-conditioner outdoor unit just can be faster
Be converted into gas, thus shortening the first predetermined interval t01Size so that cross valve 130 quickly commutates, be equally beneficial for
Improve the heat exchange efficiency of air-conditioner outdoor unit.
During air-conditioner outdoor unit runs, the liquid refrigerant being trapped in during a job follows badly follows in work at present
The time being converted into needed for gas refrigerant in bad is relevant with ambient temperature, therefore in order to improve the precision of above-mentioned control method,
With reference to Fig. 4, following steps also can be set before abovementioned steps S100：
S410, detection current environmental temperature T；
S420, by ambient temperature and the first prefixed time interval t01Between the corresponding table of numerical value obtain current environmental temperature T
Corresponding first prefixed time interval t01.
Above-mentioned ambient temperature and the first prefixed time interval t01Between the corresponding table of numerical value can be obtained by experiment, that is,
Under different ambient temperatures, liquid refrigerant in detection air-conditioner outdoor unit through how long after be fully converted to gaseous state system
Cryogen, and multigroup Experiment Data Records are become the form of the corresponding table of numerical value, the corresponding table of this numerical value can be stored in air-conditioner outdoor unit
Or in indoor apparatus of air conditioner.
Step S110～S310 in the corresponding upper embodiment of step S430 shown in Fig. 3～S470, no longer superfluous herein
State.
This embodiment selects the first prefixed time interval t according to ambient temperature01Numerical value, and then make the first Preset Time
Interval t01Value more accurate, to reach object defined above.
Usually, easily the problem that liquid refrigerant impacts cross valve 130, this time in air-conditioner outdoor unit in the winter time
Duan Zhong, the operational mode of air-conditioner outdoor unit is usually heating mode.As shown in figure 4, being based on this situation, this utility model is implemented
The control method that example provides also can carry out following steps before blower fan and compressor start：
S400, detect whether there is heating mode signal, if it is, entering aforementioned control blower fan 110 and compressor 120
Start, and record starting duration t1Step, otherwise directly control cross valve 130 commutate.
That is, when only air-conditioner is detected and being in heating mode, the control method just meeting that this utility model provides
Postpone the switch operation of cross valve 130, be otherwise just controlled according to normal control sequential.Obviously, this step S400 plus
Enter so that the control method that this utility model provides can be adjusted according to operational mode, prevent this control method from making unnecessary
Control operation.
This utility model embodiment also provides a kind of control device of air-conditioner outdoor unit, and the application of this control device is any of the above-described
Control method described by technical scheme, as shown in figure 5, this control device includes：
Start control unit 200, for controlling blower fan 110 and compressor 120 to start；
First recording unit 300, for recording the starting duration t after blower fan 110 and compressor 120 startup1；
First judging unit 400, for judging above-mentioned starting duration t1Whether it is more than the first prefixed time interval t01；
Commutation control unit 500, in above-mentioned starting duration t1More than the first prefixed time interval t01When, control four-way
Valve 130 is commutated.
This control device is electrically connected with air-conditioner outdoor unit, and then sends control letter to the corresponding part in air-conditioner outdoor unit
Number.This control device first records the starting duration t after blower fan 110 and compressor 120 startup1, and in this starting duration t1More than
One prefixed time interval t01When, then control cross valve 130 to be commutated, even if air-conditioner outdoor unit has liquid refrigerating before starting
Agent, blower fan 110 and compressor 120 run the first prefixed time interval t01Afterwards, this partially liq cold-producing medium also follows in heat exchange
It is changed into gas in ring, be just not readily susceptible to fluid power impact during hereafter cross valve 130 commutation, thus this control device can improve sky
Reliability when adjusting off-premises station to run.
In specific embodiment, start control unit 200 and may include：
Air-blower control unit 210, for controlling blower fan 110 to start；
Second recording unit 220, for recording blower fan starting duration t2；
Second judging unit 230, for judging aforementioned blower fan starting duration t2Whether it is more than the second prefixed time interval t02；
Compressor control unit 240, in blower fan starting duration t2More than the second prefixed time interval t02When, control pressure
Contracting machine 120 starts.
Air-blower control unit 210 and the second recording unit 220 are all electrically connected with blower fan, the second judging unit 230 and second
Recording unit 220 electrically connects, with this by blower fan starting duration t2Size be transferred to the second judging unit 230, compressor control
Unit 240 is electrically connected with the second judging unit 230, the running status of its controllable compressor 120.This structure is passed through to optimize blower fan
110 and the boot sequence of compressor 120, reach the purpose improving heat exchange efficiency.
As shown in figure 5, for the switch operation being precisely controlled cross valve 130, above-mentioned control device also includes：
Ambient temperature detector unit 600, for detecting current environmental temperature T；
Acquiring unit 700, current for being obtained by the corresponding table of the value between ambient temperature and the first prefixed time interval
Corresponding first prefixed time interval of ambient temperature T.
As shown in figure 1, this ambient temperature detector unit 600 can adopt temperature-sensitive bag 140.This control device passes through ambient temperature
Detector unit 600 detects current environmental temperature T, and the size of this current environmental temperature T is transferred to acquiring unit 700, obtains
Unit 700 inquires about the first prefixed time interval t corresponding to this current environmental temperature T accordingly01, selected according to ambient temperature with this
First prefixed time interval t01So that this first prefixed time interval t01Value more accurate.
As shown in figure 5, in another embodiment, the control device that this utility model provides also includes heating mode detector unit
800, this heating mode detector unit 800 is used for detecting whether there is heating mode before blower fan 110 and compressor 120 start
Signal, its testing result can send to startup control unit 200 and commutation control unit 500.Start control unit 200 in inspection
Blower fan 110 and compressor 120 is controlled to start after measuring aforementioned heating mode signal；Commutation control unit 500 is before being not detected by
State and during heating mode signal, directly control cross valve 130 to be commutated.After being arranged such, only when air-conditioner is in heating mode
Carry out the late commutation of cross valve 130, then simplify the control program of air-conditioner outdoor unit.
This utility model embodiment also provides a kind of air-conditioner outdoor unit, and this air-conditioner outdoor unit comprises any of the above-described technology
Control device described by scheme.As shown in figure 5, a part of element of this control device can be arranged in electrical appliance kit 150.By
In above-mentioned control device, there is above-mentioned technique effect, the air-conditioner outdoor unit comprising this control device also should have corresponding technology
Effect.
Above describes some one exemplary embodiment of the present utility model by way of explanation, undoubtedly, for
Those of ordinary skill in the art, in the case of without departing from spirit and scope of the present utility model, can be with various different
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Restriction to this utility model claims.
Claims (4)
1. a kind of control device of air-conditioner outdoor unit, described air-conditioner outdoor unit includes blower fan, compressor and cross valve, and its feature exists
In, including：
Start control unit, for controlling described blower fan and described compressor start；
First recording unit, for recording the starting duration after described blower fan and described compressor start；
First judging unit, for judging whether described starting duration is more than the first prefixed time interval；
Commutation control unit, for when described starting duration is more than described first prefixed time interval, controlling described cross valve
Commutated, so that liquid refrigerant is converted into gaseous refrigerant；
Wherein, described startup control unit includes：
Air-blower control unit, for controlling described blower fan to start；
Second recording unit, for recording blower fan starting duration；
Second judging unit, for judging whether described blower fan starting duration is more than the second prefixed time interval；
Compressor control unit, for when described blower fan starting duration is more than described second prefixed time interval, controlling described
Compressor start.
2. control device according to claim 1 is it is characterised in that also include：
Ambient temperature detector unit, for detecting current environmental temperature；
Acquiring unit, described current for being obtained by the corresponding table of numerical value between ambient temperature and described first prefixed time interval
Corresponding described first prefixed time interval of ambient temperature.
3. control device according to claim 1 and 2 it is characterised in that：
Also include：Heating mode detector unit, for detecting whether to there is system before described blower fan and described compressor start
Heat pattern signal；
Described startup control unit is used for controlling described blower fan and described compressor to open after described heating mode signal is detected
Dynamic；
Described commutation control unit is used for when being not detected by described heating mode signal directly controlling described cross valve to be changed
To.
4. a kind of air-conditioner outdoor unit is it is characterised in that include the control device as any one of claim 1-3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448667.2U CN205939550U (en) | 2016-05-16 | 2016-05-16 | Air condensing units's controlling means and air condensing units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448667.2U CN205939550U (en) | 2016-05-16 | 2016-05-16 | Air condensing units's controlling means and air condensing units |
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| Publication Number | Publication Date |
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| CN205939550U true CN205939550U (en) | 2017-02-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107983A (en) * | 2019-05-05 | 2019-08-09 | 珠海格力电器股份有限公司 | Air-conditioner set and its four-way valve commutation states detection method, device, system |
| CN112361683A (en) * | 2020-11-26 | 2021-02-12 | 珠海格力电器股份有限公司 | Compressor starting protection device, control method and air-cooled water chilling unit |
-
2016
- 2016-05-16 CN CN201620448667.2U patent/CN205939550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107983A (en) * | 2019-05-05 | 2019-08-09 | 珠海格力电器股份有限公司 | Air-conditioner set and its four-way valve commutation states detection method, device, system |
| CN112361683A (en) * | 2020-11-26 | 2021-02-12 | 珠海格力电器股份有限公司 | Compressor starting protection device, control method and air-cooled water chilling unit |
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