CN109780809A - The wet method of the control of refrigerator and refrigerator - Google Patents
The wet method of the control of refrigerator and refrigerator Download PDFInfo
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- CN109780809A CN109780809A CN201811564680.4A CN201811564680A CN109780809A CN 109780809 A CN109780809 A CN 109780809A CN 201811564680 A CN201811564680 A CN 201811564680A CN 109780809 A CN109780809 A CN 109780809A
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Abstract
The present invention provides a kind of refrigerators, including the basic branch being connected by evaporator with compressor, by condenser, the refrigeration branch that filter and capillary are sequentially connected, the outlet end of the compressor is connected with the condenser, the capillary is connected with the arrival end of the evaporator, the refrigerator further includes the wet branch of control being connected respectively with the arrival end of the outlet end of the compressor and evaporator, it controls the wet branch of the control and refrigeration branch selects the control device of a job, the wet branch of control includes the current limiting tube to limit flow, the present invention also provides a kind of wet methods of the control of refrigerator, by adjusting the working time of refrigeration branch and the wet branch of control, the purpose of indoor humidity between realizing described in adjusting.Refrigerator of the invention may be implemented defrost and control wet function, saves energy consumption, and safety coefficient is high；The wet method of the control of refrigerator of the invention realizes the adjusting to compartment humidity.
Description
Technical field
The present invention relates to a kind of wet methods of the control of refrigerator and refrigerator.
Background technique
Current refrigerator especially wind cooling refrigerator can be blown into air duct by indoor steam by between, finally freeze on an evaporator.This
There are two disadvantages for the refrigerator of sample, first, the too thick working efficiency for influencing refrigeration system that freezes on evaporator, second, interior is wet
Spend it is low, be not suitable for store fruits and vegetables.The method that the prior art usually solves this problem includes that setting is used to defrost to evaporator
Heating device, setting be used to humidifier for humidifying to compartment etc..Although such method can solve this to a certain extent
Two problems, but additional increased equipment greatly improves cost, heating equipment may cause certain risk, and can make
At energy loss.
In view of this, it is necessary to the wet method of the control of existing refrigerator and refrigerator be improved, to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of wet method of the control of refrigerator and refrigerator, to solve in current refrigerator humidity too
It is low, the problem of freezing is easy on evaporator.
To achieve the above object, the present invention provides a kind of refrigerator, the basis including being connected by evaporator with compressor is propped up
Road, the refrigeration branch being sequentially connected by condenser, filter and capillary, the outlet end of the compressor and the condenser phase
Even, the capillary is connected with the arrival end of the evaporator, and the refrigerator further includes the outlet end with the compressor respectively
The wet branch of control, the wet branch of the control control and the refrigeration branch that are connected with the arrival end of evaporator select the control device of a job,
The wet branch of control includes the current limiting tube to limit flow.
As a further improvement of the present invention, the control device includes the first electromagnetism being mounted in the refrigeration branch
Valve, the second solenoid valve for being mounted on the wet branch of control, the control list for controlling first solenoid valve and second solenoid valve on-off
Member.
As a further improvement of the present invention, first solenoid valve both ends are separately connected filter and capillary.
As a further improvement of the present invention, the basic branch further includes the height that the outlet end of the compressor is arranged in
Pressure table and be arranged in the compressor arrival end low-pressure meter.
The present invention also provides the wet method of the control of above-mentioned refrigerator, the refrigerator further includes compartment, between described it is indoor be equipped with to
The humidity sensor and the temperature sensor to detect temperature for detecting humidity, in cycle T, the humidity sensor is detected
The difference that described indoor initial humidity subtracts end humidity is RHcb, stores the first humidity fiducial value h in control device1、
Second humidity fiducial value h2And time variation amount t0, wherein h1>h2, the wet method of the control of the refrigerator includes the following steps:
S1: the control device controls the refrigeration branch working time t1, control the wet branch working time t of control2,
t1+t2=T；
S2: after cycle T, RHcb is compared with h1 and h2, if RHcb >=h1, in next cycle T, control institute
Stating the refrigeration branch working time is t1-t0, controlling the control wet branch working time is t2+t0；If h1> RHcb >=h2, next
In cycle T, controlling the refrigeration branch working time is t1, controlling the control wet branch working time is t2；If RHcb < h2,
In next cycle T, controlling the refrigeration branch working time is t1+t0, controlling the control wet branch working time is t2-t0。
As a further improvement of the present invention, default humidity value RHs, the first humidity differences H are stored in the control device1
And the second humidity differences H2, wherein H10 > H of >2, the humidity sensor detection cycle T end time indoor humidity RHc, when
RHc-RHs≥H1When, the refrigerator is in dehumidified state, and the first humidity fiducial value is h at this time1 removes, the second humidity fiducial value h2 remove,
As RHc-RHs≤H2When, the refrigerator is in humidification state, and the first humidity fiducial value is h at this time1 adds, the second humidity fiducial value
h2 add, H1> RHc-RHs > H2, the refrigerator be in humidity maintain state, at this time the first humidity fiducial value be h1 dimension, the second humidity
Fiducial value h2 dimensions, wherein h1 removes> h1 dimension> h1 adds, h2 remove> h2 dimensions> h2 add。
As a further improvement of the present invention, the first humidity differences H1It is 2%, the second humidity differences H2For-
2%.
As a further improvement of the present invention, the first humidity fiducial value h1 removes=1.5%, the first humidity fiducial value h1 dimension=
0.5%, the first humidity fiducial value h1 adds=-0.5%, the second humidity fiducial value h2 remove=0.5%, the second humidity fiducial value h2 dimensions=-
0.5%, the second humidity fiducial value h2 remove=-1.5%.
As a further improvement of the present invention, the cycle T is 1 minute, the time variation amount t0It is 0.5 second.
As a further improvement of the present invention, the control device indoor different temperature and humidity between calculates pre-
If humidity value RHs.
The beneficial effects of the present invention are: refrigerator of the invention, by increase setting respectively with the outlet end of compressor and control
Wet branch heats so that can be directly over evaporator from the warm refrigerant that compressor comes out to evaporator, and then realizes
The function of defrost and humidification；By the way that current limiting tube is arranged, prevent excessive warm refrigerant from entering evaporator and broken words evaporator；This hair
The wet method of the control of bright refrigerator, by pair between indoor humidity real-time monitoring, and control refrigeration branch and control wet branch not
Same working time, control humidity are slowly adjusted, final to keep stablizing.
Detailed description of the invention
Fig. 1 is the original part attachment structure schematic diagram of refrigerator of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
As shown in Figure 1, refrigerator of the invention, sets the compartment formed, by evaporator 11 and compressor 12 including being enclosed by cabinet
The wet branch of control that the refrigeration branch 2 that connected basic branch 1 is connected with 1 both ends of basic branch is connected with 1 both ends of basic branch
3, it controls the wet branch 3 of the control and refrigeration branch 2 selects the control device of a job.
Described interior is provided with the temperature sensor to detect compartment temperature and the humidity sensor to detect humidity
Device.
The outlet end of the evaporator 11 is connected with the arrival end of the compressor 12.The basis branch 1 further includes setting
Set the outlet end of the compressor 12 high pressure gauge 13 and be arranged in the compressor 12 arrival end low-pressure meter 14.Institute
Low-pressure meter 14 and high pressure gauge 13 are stated respectively to detect the pressure of compressor 12 arrival end and outlet end.
The refrigeration branch 2 is sequentially connected by condenser 21, filter 22 and capillary 23, the outlet of the compressor 12
End is connected with the condenser 21, and the capillary 23 is connected with the arrival end of the evaporator 11.
The wet branch 3 of control includes the current limiting tube 31 to limit flow.The current limiting tube 31 limits the flow of refrigerant,
It prevents a large amount of superheated refrigerants to be passed through evaporator 11, and destroys evaporator 11.
The control device includes the first solenoid valve 41 being mounted in the refrigeration branch 2, is mounted on the wet branch of control
Second solenoid valve 42, the control unit of control first solenoid valve 41 and 42 on-off of second solenoid valve on road 3.The control is single
It is first to be electrically connected with the temperature sensor and humidity sensor, with the signal of temperature and humidity indoor between acquisition.
First solenoid valve, 41 both ends are separately connected filter 22 and capillary 23, the both ends of the second solenoid valve 42
It is separately connected current limiting tube 31 and evaporator 11.
When room temperature is higher than preset temperature between temperature sensor detection is described, described control unit controls the compression
Machine 12 works.When described control unit control first solenoid valve 41 connect and second solenoid valve 42 disconnect when, refrigerant according to
Secondary to flow through compressor 12, condenser 21, filter 22, capillary 23 and evaporator 11, the refrigerator normally freezes at this time.Work as institute
It states control unit and controls first solenoid valve 41 and disconnect and second solenoid valve 42 when connecting, refrigerant flows successively through the compression
Machine 12, current limiting tube 31 and evaporator 11, high temperature refrigerant flows through evaporator 11 at this time, and heats to evaporator 11, so that evaporation
The ice of condensation on device 11 is volatilized into steam, achievees the purpose that humidification.
The present invention also provides a kind of wet methods of the control of refrigerator.After 12 cycle of operation of the compressor T, the humidity sensor
Device detect it is described between indoor initial humidity subtract that terminate the difference of humidity be RHcb, store the first humidity ratio in control device
Compared with value h1, the second humidity fiducial value h2And time variation amount t0, wherein h1>h2, the wet method of the control of the refrigerator specifically includes as follows
Step:
S1: the control device controls 2 working time of the refrigeration branch t1, control control wet 3 working time of branch
t2, t1+t2=T；
S2: after cycle T, RHcb is compared with h1 and h2, if RHcb >=h1, in next cycle T, control institute
Stating 2 working time of refrigeration branch is t1-t0, controlling control wet 3 working time of branch is t2+t0；If h1> RHcb >=h2, under
In one cycle T, controlling 2 working time of refrigeration branch is t1, controlling control wet 3 working time of branch is t2；If RHcb <
h2, in next cycle T, controlling 2 working time of refrigeration branch is t1+t0, controlling the control wet 3 working time of branch is
t2-t0。
So control, can slowly control the variation of humidity, and be unlikely to cause the steep increasing of humidity or steep drop.
Default humidity value RHs, the first humidity differences H are stored in the control device1And the second humidity differences H2, wherein
H10 > H of >2, the humidity sensor detection cycle T end time indoor humidity RHc, as RHc-RHs >=H1When, the refrigerator
In dehumidified state, the first humidity fiducial value is h at this time1 removes, the second humidity fiducial value h2 remove, as RHc-RHs≤H2When, the ice
Case is in humidification state, and the first humidity fiducial value is h at this time1 adds, the second humidity fiducial value h2 add, H1> RHc-RHs > H2, described
Refrigerator is in humidity and maintains state, and the first humidity fiducial value is h at this time1 dimension, the second humidity fiducial value h2 dimensions, wherein h1 removes> h1 dimension>
h1 adds, h2 remove> h2 dimensions> h2 add。
The control device indoor different temperature and humidity between calculates default humidity value RHs.So pass through control
Evaporating temperature processed, can be under the premise of compartment freezes more than corresponding compartment target temperature and humidity state dew-point temperature, and control compartment is wet
Degree prevents from realizing fresh-keeping function because of the too low air-dried food of the compartment humidity.
The first humidity differences H1It is 2%, the second humidity differences H2It is -2%.
First humidity fiducial value h1 removes=1.5%, the first humidity fiducial value h1 dimension=0.5%, the first humidity fiducial value h1 adds=-
0.5%, the second humidity fiducial value h2 remove=0.5%, the second humidity fiducial value h2 dimensions=-0.5%, the second humidity fiducial value h2 remove=-
1.5%.
The cycle T is 1 minute, the time variation amount t0It is 0.5 second, 2 working time of refrigeration branch t1It is 55 seconds, control
Branch working time t processed2It is 5 seconds.
The refrigerator is described with the citing of above-mentioned specific value, the indoor temperature between temperature sensor detection is described
When higher than preset temperature, the compressor 12 starts.In first cycle T, controls the refrigeration branch 2 and work 55 seconds, control
It makes the wet branch 3 of control to work 5 seconds, indoor humidity RHc is detected after work, by RHc-RHs and H1And H2Compare, if:
RHc-RHs >=2%, i.e., between indoor humidity be higher than default humidity value, it is if meeting RHcb >=1.5% simultaneously, i.e., described
Between be reduced more than equal to 1.5% in indoor humidity 1min, although being at this time dehumidified state, due to humidity reduce it is too fast, it is unfavorable
It maintains to balance in humidity, 2 working time of refrigeration branch can be reduced to 54.5s based on this by system, will control wet 3 working time of branch
5.5s is risen to, constantly detection repetitive operation achievees the purpose that slowly to dehumidify until RHcb maintains 0.5%~1.5%；If
1.5 RHcb >=0.5 > need not change 2 working time of refrigeration branch at this time and control wet 3 working time of branch；If meeting simultaneously
RHcb < 0.5%, but since humidity reduced slowly, 2 working time of refrigeration branch can be increased to 55.5s based on this by system, will
Controlling wet 3 working time of branch is reduced to 4.5s, constantly detection repetitive operation, until RHcb maintains 0.5%~1.5%, reaches
Accelerate the purpose of dehumidifying.
2% > RHc-RHs > -2%, i.e., between indoor humidity remain basically stable with default humidity value, if meet simultaneously RHcb >=
0.5%, since humidity reduction is too fast, it is unfavorable for humidity and maintains balance, system can be reduced by 2 working time of refrigeration branch based on this
For 54.5s, will control wet 3 working time of branch rises to 5.5s, constantly detection repetitive operation, until RHcb maintains -0.5%~
0.5%, reach the target for maintaining humidity；If 0.5% > RHcb >=-0.5% need not change 2 working time of refrigeration branch at this time
With control wet 3 working time of branch；If meeting RHcb < -0.5% simultaneously, humidity is being improved at this time, and system can will be freezed based on this
2 working time of branch is increased to 55.5s, will control wet 3 working time of branch and is reduced to 4.5s, constantly detection repetitive operation, until
RHcb maintains 0.5%~1.5%, achievees the purpose that maintain humidity.
RHc-RHs≤- 2%, i.e., between indoor humidity be lower than default humidity value, if meeting RHcb >=-0.5%, i.e. institute simultaneously
It states to improve in an indoor humidity 1min and is more than or equal to 0.5%, although being at this time humidification state, since humidity increase is excessively slow, no
It maintains to balance conducive to humidity, 2 working time of refrigeration branch can be reduced to 54.5s based on this by system, when will control the work of wet branch 3
Between rise to 5.5s, constantly detection repetitive operation reaches the mesh humidified rapidly until RHcb maintains -1.5%~-0.5%
's；If -0.5% > RHcb >=-1.5%, 2 working time of refrigeration branch need not be changed at this time and control wet 3 working time of branch；If
Meet RHcb < -1.5% simultaneously, but since humidity increase is too fast, 2 working time of refrigeration branch can be increased to by system based on this
55.5s, will control wet 3 working time of branch is reduced to 4.5s, constantly detection repetitive operation, until RHcb maintains -1.5%~-
0.5%, achieve the purpose that slowly to humidify.
Refrigerator of the invention, by increase setting respectively with the outlet end of compressor 12 and the wet branch 3 of control so that from
The warm refrigerant that compressor 12 comes out can be directly over evaporator 11, heat to evaporator 11, and then realize defrost and humidification
Function；By the way that current limiting tube 31 is arranged, prevent excessive warm refrigerant from entering evaporator 11 and broken words evaporator 11；Of the invention
The wet method of the control of refrigerator, by pair between indoor humidity real-time monitoring, and control refrigeration branch 2 and the difference for controlling wet branch 3
Working time, control humidity is slowly adjusted, final to keep stablizing.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement, without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. a kind of refrigerator, including be connected by evaporator with compressor basic branch, by condenser, filter and capillary successively
Connected refrigeration branch, the outlet end of the compressor are connected with the condenser, and the capillary and the evaporator enter
Mouthful end is connected, it is characterised in that: the refrigerator further includes the arrival end phase with the outlet end of the compressor and evaporator respectively
The wet branch of control even, the wet branch of the control control and refrigeration branch select the control device of a job, and the wet branch of control includes using
To limit the current limiting tube of refrigerant flow.
2. refrigerator according to claim 1, it is characterised in that: the control device includes being mounted in the refrigeration branch
The first solenoid valve, be mounted on the wet branch of the control second solenoid valve, control first solenoid valve and second solenoid valve it is logical
Disconnected control unit.
3. refrigerator according to claim 2, it is characterised in that: first solenoid valve both ends are separately connected filter and hair
Tubule.
4. refrigerator according to claim 1, it is characterised in that: the basis branch further includes that the compressor is arranged in
The high pressure gauge of outlet end and be arranged in the compressor arrival end low-pressure meter.
5. a kind of wet method of control of refrigerator as described in claim 1, the refrigerator further includes compartment, and indoor be equipped with is used between described
Humidity sensor to detect humidity and the temperature sensor to detect temperature, in cycle T, the humidity sensor detection
It is RHcb that subtracting to indoor initial humidity between described, which terminates the difference of humidity, stores the first humidity fiducial value in control device
h1, the second humidity fiducial value h2And time variation amount t0, wherein h1>h2, it is characterised in that: the wet method of the control of the refrigerator includes such as
Lower step:
S1: the control device controls the refrigeration branch working time t1, control the wet branch working time t of control2, t1+t2
=T；
S2: after cycle T, RHcb is compared with h1 and h2, if RHcb >=h1, in next cycle T, control the system
The cold branch working time is t1-t0, controlling the control wet branch working time is t2+t0；If h1> RHcb >=h2, in next period
In T, controlling the refrigeration branch working time is t1, controlling the control wet branch working time is t2；If RHcb < h2, under
In one cycle T, controlling the refrigeration branch working time is t1+t0, controlling the control wet branch working time is t2-t0。
6. the wet method of the control of refrigerator according to claim 5, it is characterised in that: store default humidity in the control device
Value RHs, the first humidity differences H1And the second humidity differences H2, wherein H10 > H of >2, the humidity sensor detection cycle T knot
Beam time indoor humidity RHc, as RHc-RHs >=H1When, the refrigerator is in dehumidified state, and the first humidity fiducial value is at this time
h1 removes, the second humidity fiducial value h2 remove, as RHc-RHs≤H2When, the refrigerator is in humidification state, at this time the first humidity fiducial value
For h1 adds, the second humidity fiducial value h2 add, H1> RHc-RHs > H2, the refrigerator is in humidity and maintains state, at this time the first humidity
Fiducial value is h1 dimension, the second humidity fiducial value h2 dimensions, wherein h1 removes> h1 dimension> h1 adds, h2 remove> h2 dimensions> h2 add。
7. the wet method of the control of refrigerator according to claim 6, it is characterised in that: the first humidity differences H1It is 2%, institute
State the second humidity differences H2It is -2%.
8. the wet method of the control of refrigerator according to claim 6, it is characterised in that: the first humidity fiducial value h1 removes=1.5%, the
One humidity fiducial value h1 dimension=0.5%, the first humidity fiducial value h1 adds=-0.5%, the second humidity fiducial value h2 remove=0.5%, second
Humidity fiducial value h2 dimensions=-0.5%, the second humidity fiducial value h2 remove=-1.5%.
9. the wet method of the control of refrigerator according to claim 6, it is characterised in that: the cycle T is 1 minute, the time
Variable quantity t0It is 0.5 second.
10. the wet method of the control of refrigerator according to claim 6, it is characterised in that: the control device is indoor between
Different temperature and humidities calculates default humidity value RHs.
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| CN201811564680.4A CN109780809B (en) | 2018-12-20 | 2018-12-20 | Refrigerator and humidity control method thereof |
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|---|---|---|---|
| CN201811564680.4A CN109780809B (en) | 2018-12-20 | 2018-12-20 | Refrigerator and humidity control method thereof |
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| CN109780809B CN109780809B (en) | 2020-12-11 |
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