CN109708394A - The control method and control system of cooling fan for refrigerator - Google Patents
The control method and control system of cooling fan for refrigerator Download PDFInfo
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- CN109708394A CN109708394A CN201811489762.7A CN201811489762A CN109708394A CN 109708394 A CN109708394 A CN 109708394A CN 201811489762 A CN201811489762 A CN 201811489762A CN 109708394 A CN109708394 A CN 109708394A
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Abstract
The present invention provides the control methods and control system of a kind of cooling fan for refrigerator, which comprises S1, controls that cooling fan is in the open state or closed state according to the first operating status of refrigerator；If S2, cooling fan are in the open state, the supply voltage of cooling fan is adjusted according to the second operating status of refrigerator；First operating status of refrigerator includes: in defrost/and refrigerator doors open, compressor unlatching/closing；Second operating status of refrigerator includes: the first time starting after defrost, compressor open after power on for the first time, refrigerator is in the current environmental temperature of quickly cooling or quick-frozen state and refrigerator.The control method and control system of cooling fan for refrigerator of the invention can avoid blower and run at high speed always bring energy consumption and noise problem according to the supply voltage of the state adjust automatically blower of refrigerator.
Description
Technical field
The present invention relates to the control method of field of home appliance technology more particularly to a kind of cooling fan for refrigerator and
Control system.
Background technique
Refrigerator has become the indispensable household electrical appliance of many families, with the development of science and technology user wants the performance of refrigerator
Ask higher and higher.
Cooling fan in refrigerator mainly transmits the heat of the components such as compressor generation by the way of gas flowing, existing
Have in technology, the revolving speed of cooling fan is generally fixed and invariable, and is constantly in the state of running at high speed, in the prior art, also
The scheme that intelligent control cooling rotation speed of fan changes is not proposed, especially proposes to change rotation speed of fan by blower supply voltage
Scheme, in this way, the energy consumption waste for the blower that runs at high speed is serious, while also generating excessively high noise with the change of refrigerator state.
Summary of the invention
The purpose of the present invention is to provide the control methods and control system of a kind of cooling fan for refrigerator.
One of in order to achieve the above-mentioned object of the invention, an embodiment of the present invention provides a kind of cooling fan for refrigerator
Control method, which comprises S1, according to the first operating status of refrigerator control cooling fan it is in the open state or close
State；
If S2, cooling fan are in the open state, the power supply of cooling fan is adjusted according to the second operating status of refrigerator
Voltage；
First operating status of refrigerator includes: in defrost/and refrigerator doors open, compressor unlatching/closing；
Second operating status of refrigerator includes: the first time starting after defrost, compressor open after power on for the first time, ice
Case is in the current environmental temperature of quickly cooling or quick-frozen state and refrigerator.
As the further improvement of an embodiment of the present invention, for step S1, the method is specifically included:
If S11, refrigerator are in defrost and/or refrigerator doors are opened, cooling fan closing is controlled.
As the further improvement of an embodiment of the present invention, for step S1, the method is specifically included:
When refrigerator is not in defrost and refrigerator doors are not opened, then S12 is entered step,
If S12, compressor are in close state, cooling fan closing is controlled；
If compressor is in the open state, cooling fan opening is controlled.
As the further improvement of an embodiment of the present invention, the method also includes:
The mapping relations of the supply voltage of the second operating status and cooling fan are established, and ambient temperature range is preparatory
Temperature multiple temperature ranges incremented by successively are divided into, are established between the supply voltage of the cooling fan and the temperature range
Mapping relations；
Wherein, when first time starting state after refrigerator is in defrost, the voltage for controlling cooling fan is first default
Voltage；
When the compressor of refrigerator is in the first power-up state after opening, the voltage for controlling cooling fan is second default
Voltage；
When refrigerator is in quickly cooling or quick-frozen state, the voltage for controlling cooling fan is third predeterminated voltage；
First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the supply voltage and temperature of the cooling fan
Range is proportional to.
As the further improvement of an embodiment of the present invention, for step S2, the method is specifically included:
S21, the first time starting state after whether refrigerator is in defrost is judged, if so, the voltage of control cooling fan is
First predeterminated voltage, if it is not, executing step S22；
S22, judge the first the power-up state whether compressor of refrigerator is in after opening, if so, control cooling fan
Voltage is the second predeterminated voltage, if it is not, executing step S23；
Whether S23, control refrigerator are in quickly cooling or quick-frozen state, if so, the voltage of control cooling fan is default for third
Voltage, if it is not, adjusting the supply voltage of cooling fan according to the current environmental temperature of refrigerator.
One of in order to achieve the above-mentioned object of the invention, the present invention provides a kind of control systems of cooling fan for refrigerator
System, the system comprises: monitoring modular, for monitoring the operating status of refrigerator, the operating status includes: the first operating status
And second operating status；First operating status includes: in defrost/and refrigerator doors open, compressor unlatching/closing；Described
Two operating statuses include: the first time starting after defrost, compressor open after power on for the first time, refrigerator is in quickly cooling or quick-frozen
The current environmental temperature of state and refrigerator；
Processing module, for according to the first operating status of refrigerator control cooling fan it is in the open state or close shape
State；If cooling fan is in the open state, the supply voltage of cooling fan is adjusted according to the second operating status of refrigerator.
As the further improvement of an embodiment of the present invention, the processing module is specifically used for: if the monitoring modular
Confirmation refrigerator is in defrost and/or refrigerator doors are opened, then controls cooling fan closing.
As the further improvement of an embodiment of the present invention, the processing module is specifically used for: when the monitoring modular
When confirmation refrigerator is not in defrost and refrigerator doors are not opened,
If the monitoring modular judges that compressor is in close state, cooling fan closing is controlled；
If the monitoring modular judges that compressor is in the open state, cooling fan opening is controlled.
As the further improvement of an embodiment of the present invention, the system also includes: mapping relations establish module, are used for
The mapping relations of the supply voltage of the second operating status and cooling fan are established, and ambient temperature range is divided into temperature in advance
Multiple temperature ranges incremented by successively are spent, the mapping established between the supply voltage of the cooling fan and the temperature range is closed
System；
Wherein, when first time starting state after refrigerator is in defrost, the voltage for controlling cooling fan is first default
Voltage；
When the compressor of refrigerator is in the first power-up state after opening, the voltage for controlling cooling fan is second default
Voltage；
When refrigerator is in quickly cooling or quick-frozen state, the voltage for controlling cooling fan is third predeterminated voltage；
First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the supply voltage and temperature of the cooling fan
Range is proportional to.
As the further improvement of an embodiment of the present invention, the processing module is specifically used for:
The first time starting state after whether refrigerator is in defrost is judged by the monitoring modular, if so, control heat dissipation
The voltage of blower be the first predeterminated voltage, if it is not, by the monitoring modular judge refrigerator compressor whether be in unlatching after
First power-up state, if confirmation refrigerator compressor whether be in open after first power-up state, control cooling fan
Voltage be the second predeterminated voltage, if it is not, continue to judge whether refrigerator is in quickly cooling or quick-frozen state by the monitoring modular,
If confirmation refrigerator is in quickly cooling or quick-frozen state, the voltage for controlling cooling fan is third predeterminated voltage, if it is not, then according to ice
The supply voltage of the current environmental temperature adjustment cooling fan of case.
The beneficial effects of the present invention are: the control method and control system of the cooling fan for refrigerator of the invention, it can
It is run at high speed always bring energy consumption and noise with according to the supply voltage of the state adjust automatically blower of refrigerator, avoiding blower
Problem.
Detailed description of the invention
Fig. 1 is the flow diagram in first embodiment of the invention for the control method of the cooling fan of refrigerator；
Fig. 2 is the control provided by the relatively good implementation of first embodiment of the invention for the cooling fan of refrigerator
The flow diagram of method；
Fig. 3 is the flow diagram in Fig. 2 for one of Optimization Steps of the control method of the cooling fan of refrigerator；
Fig. 4 is the schematic diagram of mapping relations between the temperature of refrigerator and the revolving speed of compressor in a specific example of the invention；
Fig. 5 be in an of the invention specific example between the revolving speed of compressor and the supply voltage of cooling fan mapping relations with
And between the supply voltage and cooling fan revolving speed of cooling fan mapping relations schematic diagram；
Fig. 6 is the module diagram in an embodiment of the present invention for the control system of the cooling fan of refrigerator；
Fig. 7 is the process signal of the adjustment control method of the supply voltage for the cooling fan that an embodiment of the present invention provides
Figure；
Fig. 8 is the schematic diagram in an embodiment of the present invention applied to the PID control structure of cooling fan；
Fig. 9 is the structural schematic diagram of mono- specific implementation of Fig. 8；
Figure 10 is the module diagram of the adaptive adjustment circuit of cooling fan supply voltage in an embodiment of the present invention；
Figure 11 is the schematic diagram of the adaptive adjustment circuit of cooling fan supply voltage in an embodiment of the present invention.
Specific embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are not intended to limit this
Invention, the transformation in structure or function that those skilled in the art are made according to these embodiments are all contained in this hair
In bright protection scope.
Refrigerator generally includes: cabinet, the bottom of box and the press storehouse for accommodating compressor is formed in, close to the bottom of box
Or the air duct that side wall is formed, at least one set of blower being set in press storehouse and/or air duct, and for monitoring refrigerator and each
Several sensing devices of spare parts logistics.
As shown in connection with fig. 1, in first embodiment of the invention, a kind of controlling party of cooling fan for refrigerator is proposed
Method, which comprises
S1, control that cooling fan is in the open state or closed state according to the first operating status of refrigerator, the of refrigerator
One operating status includes: in defrost/and refrigerator doors open, compressor unlatching/closing.
If S2, cooling fan are in the open state, the power supply of cooling fan is adjusted according to the second operating status of refrigerator
Voltage, the second operating status of refrigerator include: the first time starting after defrost, compressor open after power on for the first time, refrigerator
Current environmental temperature in quickly cooling or quick-frozen state and refrigerator.
In an achievable embodiment of the invention, step S1, the method are specifically included: if refrigerator is in defrost
In and/or refrigerator doors open, then control cooling fan closing, otherwise control cooling fan open；If compressor, which is in, closes shape
State then controls cooling fan closing；If compressor is in the open state, cooling fan opening is controlled.
In the preferable first embodiment of the present invention, as shown in connection with fig. 2, for step S1, the method is specifically included:
S11, judge whether refrigerator is in defrost and/or whether refrigerator doors are in the open state, if so, control radiation air organ
It closes；If it is not, entering step S12；S12, judge whether compressor is in close state, if compressor is in close state, control
Cooling fan processed is closed；If compressor is in the open state, cooling fan opening is controlled.By step S1, accurately control
Cooling fan is in unlatching/or closed state, in favor of accurately adjusting the supply voltage of cooling fan.
Further, before step S2, the method also includes: establish the power supply of the second operating status and cooling fan
The mapping relations of voltage, and ambient temperature range is divided into temperature multiple temperature ranges incremented by successively in advance, establish institute
State the mapping relations between the supply voltage of cooling fan and the temperature range；Wherein, first after refrigerator is in defrost
When secondary starting state, the voltage for controlling cooling fan is the first predeterminated voltage；When the compressor of refrigerator is in first after unlatching
When power-up state, the voltage for controlling cooling fan is the second predeterminated voltage；When refrigerator is in quickly cooling or quick-frozen state, control dissipates
The voltage of air-heater is third predeterminated voltage；First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the heat dissipation
The supply voltage of blower is proportional to temperature range.
In the embodiment of the invention, such as the first predeterminated voltage is set as 12V, the second predeterminated voltage is 11V, the
Three predeterminated voltages are 10V, when environment temperature at 10 DEG C and it is following when, the supply voltage of cooling fan is 7V, and environment temperature is 25
DEG C and it is following and when being higher than 10 DEG C, the supply voltage of cooling fan is 9V, and environment temperature is at 35 DEG C and following and when being higher than 25 DEG C,
The supply voltage of cooling fan is 10V, and for environment temperature when being higher than 35 DEG C, the supply voltage of cooling fan is 11V.
As shown in Fig. 2, for step S2, the method specifically includes in a better embodiment of the invention:
S21, the first time starting state after whether refrigerator is in defrost is judged, if so, the voltage of control cooling fan is
First predeterminated voltage, if it is not, executing step S22；
S22, judge the first the power-up state whether compressor of refrigerator is in after opening, if so, control cooling fan
Voltage is the second predeterminated voltage, if it is not, executing step S23；
Whether S23, control refrigerator are in quickly cooling or quick-frozen state, if so, the voltage of control cooling fan is default for third
Voltage, if it is not, adjusting the supply voltage of cooling fan according to the current environmental temperature of refrigerator.
For in the embodiment, the step S23 directly adjusts cooling fan according to the current environmental temperature of refrigerator
Supply voltage；Such as: when current environmental temperature is 10 DEG C and is following, the supply voltage of cooling fan is directly adjusted to 7V.
Further, in better embodiment of the present invention, by PID control technology, the accurate power supply for adjusting cooling fan
Voltage will will be described in detail in the following contents.
PID controller (ratio (proportion), integral (integral), differential (differential)) be one
Common feedback loop component in Industry Control Application, is made of proportional unit P, integral unit I and differentiation element D.PID control
Basis be ratio control；Integration control can eliminate steady-state error, but can increase overshoot；Differential control can accelerate big inertial system
Response speed of uniting and decrease overshoot trend.
As shown in figure 3, second embodiment of the invention is used for the heat dissipation of refrigerator described in the above-mentioned first embodiment
The control method basis of blower is improved, correspondingly, in this embodiment, second operating status further include: compression
The revolving speed of machine, specifically, on the basis of above-mentioned steps S2, or step S23 if not after, the method also includes: if N1, heat dissipation
Blower is in the open state, then the revolving speed of compressor is adjusted according to the temperature of refrigerator；N2, confirmed according to the revolving speed of the compressor
The supply voltage of cooling fan；Wherein, the temperature of refrigerator includes: that the temperature of the refrigeration compartment of compressor control and/or refrigerator are worked as
The preceding environment temperature being in.Certainly, in this present invention other embodiments, the temperature of the refrigerator can also be refrigeration room temperature
Degree and/or freezer temperature and/or alternating temperature room temperature/and/or wind duct temperature etc., do not do specifically repeat herein.
In the specific embodiment of the invention, the method also includes: it establishes between the temperature of refrigerator and the revolving speed of compressor
Mapping relations；Establish the confession of the mapping relations and cooling fan between the revolving speed of compressor and the supply voltage of cooling fan
Mapping relations between piezoelectric voltage and revolving speed.
In conjunction with shown in 4, in the embodiment of the invention, describe between the temperature of refrigerator and the revolving speed of compressor
Mapping relations, in this example, the numerical value of each unit indicates the temperature of the refrigeration compartment of compressor control in header line transverse direction,
Its unit is DEG C, and title ranks indicate the environment temperature that is currently at of refrigerator to the numerical value of middle each unit, and unit is DEG C, horizontal
Numerical value in each unit of vertical handover indicates the revolving speed of compressor corresponding to the temperature of any refrigerator, and unit is to turn.Such as:
The temperature of the refrigeration compartment of compressor control is -16 DEG C, and current environmental temperature is 15 DEG C of RT <, then in this example, corresponding institute
The revolving speed for needing compressor is 1600 turns.
In conjunction with shown in 5, in the embodiment of the invention, the revolving speed of compressor and the power supply electricity of cooling fan are described
Mapping relations between the revolving speed of the supply voltage and cooling fan of pressure and cooling fan, such as: press revolving speed (RPM) is
At 1600 turns, the supply voltage of corresponding cooling fan is 11 ± 0.2V, and the supply voltage of cooling fan is 11 ± 0.2V
When, corresponding cooling fan revolving speed is 1180 turns.
Certainly, above-mentioned example is merely for convenience of understanding the few examples of description, in practical applications, the various situations of refrigerator
Under temperature corresponding to compressor revolving speed and the supply voltage of the corresponding cooling fan of compressor rotary speed can be as needed
Specific adjustment, does not do continue to repeat herein.
As shown in connection with fig. 6, the module of the control system for the cooling fan for refrigerator that an embodiment of the present invention provides
Schematic diagram, the system comprises: monitoring modular 110, processing module 200 and mapping relations establish module 300.
Monitoring modular, for monitoring the operating status of refrigerator, the operating status includes: the first operating status and the second fortune
Row state；First operating status includes: in defrost/and refrigerator doors open, compressor unlatching/closing；The second operation shape
State includes: the first time starting after defrost, compressor open after power on for the first time, refrigerator be in quickly cooling or quick-frozen state and
The current environmental temperature of refrigerator.
In addition, the monitoring modular 100 is also used to monitor the revolving speed of compressor, radiation air in a better embodiment
The revolving speed of machine and the supply voltage of cooling fan.
Processing module 200 is used in the open state according to the first operating status of refrigerator control cooling fan or closes shape
State；If cooling fan is in the open state, the supply voltage of cooling fan is adjusted according to the second operating status of refrigerator.
In an achievable embodiment of the invention, if the monitoring refrigerator of monitoring modular 100 is in defrost and/or refrigerator doors
It opens, processing module 200 then controls cooling fan closing, otherwise controls cooling fan and opens；If the confirmation compression of monitoring modular 100
Machine is in close state, and processing module 200 then controls cooling fan closing；If 100 compressor of monitoring modular is in the open state,
Processing module 200 then controls cooling fan opening.
In better embodiment of the present invention, judge whether refrigerator is in defrost and/or refrigerator doors by monitoring modular 100
It is whether in the open state, if so, processing module 200 then controls cooling fan closing；If it is not, then by monitoring modular 100 into
One step judges whether compressor is in close state, if compressor is in close state, processing module 200 controls cooling fan
It closes；If compressor is in the open state, processing module 200 controls cooling fan opening.Present embodiment accurately controls
Cooling fan is in unlatching/or closed state, in favor of accurately adjusting the supply voltage of cooling fan.
The mapping that mapping relations establish supply voltage of the module 300 for establishing the second operating status and cooling fan is closed
System, and ambient temperature range is divided into temperature multiple temperature ranges incremented by successively in advance, establish the cooling fan
Mapping relations between supply voltage and the temperature range；Wherein, when first time starting state after refrigerator is in defrost,
The voltage for controlling cooling fan is the first predeterminated voltage；When the compressor of refrigerator is in the first power-up state after opening, control
The voltage of cooling fan processed is the second predeterminated voltage；When refrigerator is in quickly cooling or quick-frozen state, the voltage of cooling fan is controlled
For third predeterminated voltage；First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the power supply electricity of the cooling fan
Pressure is proportional to temperature range.
In the embodiment of the invention, such as the first predeterminated voltage is set as 12V, the second predeterminated voltage is 11V, the
Three predeterminated voltages are 10V, when environment temperature at 10 DEG C and it is following when, the supply voltage of cooling fan is 7V, and environment temperature is 25
DEG C and it is following and when being higher than 10 DEG C, the supply voltage of cooling fan is 9V, and environment temperature is at 35 DEG C and following and when being higher than 25 DEG C,
The supply voltage of cooling fan is 10V, and for environment temperature when being higher than 35 DEG C, the supply voltage of cooling fan is 11V.
In a better embodiment of the invention, processing module 200 is specifically used for whether judging refrigerator by monitoring modular 100
First time starting state after defrost, if so, the voltage of control cooling fan is the first predeterminated voltage, if it is not, passing through institute
It states monitoring modular 100 and judges the first time starting state after whether refrigerator is in defrost, if so, the voltage of control cooling fan is
First predeterminated voltage, if it is not, judging whether the compressor of refrigerator is in powering on after opening for the first time by the monitoring modular 100
State, if whether the compressor of confirmation refrigerator is in the first power-up state after opening, the voltage for controlling cooling fan is the
Two predeterminated voltages, if it is not, continuing to judge whether refrigerator is in quickly cooling or quick-frozen state by the monitoring modular 100, if confirmation
Refrigerator is in quickly cooling or quick-frozen state, then the voltage for controlling cooling fan is third predeterminated voltage, if it is not, then working as according to refrigerator
The supply voltage of preceding environment temperature adjustment cooling fan.
Further, in better embodiment of the present invention, by PID control technology, the accurate power supply for adjusting cooling fan
Voltage will will be described in detail in the following contents.
Further, in better embodiment of the present invention, if processing module 200 is also used to cooling fan and is in open shape
State then adjusts the revolving speed of compressor according to the temperature of refrigerator；The power supply electricity of cooling fan is confirmed according to the revolving speed of the compressor
Pressure；Wherein, the temperature of refrigerator includes: the temperature of the refrigeration compartment of compressor control and/or the environment temperature that refrigerator is currently at.
Certainly, in this present invention other embodiments, the temperature of the refrigerator can also be temperature of refrigerating chamber and/or freezer temperature
And/or alternating temperature room temperature/and/or wind duct temperature etc., it does not do specifically repeat herein.
It is also used to establish between the temperature of refrigerator and the revolving speed of compressor correspondingly, mapping relations establish module 300
Mapping relations；Establish the confession of the mapping relations and cooling fan between the revolving speed of compressor and the supply voltage of cooling fan
Mapping relations between piezoelectric voltage and revolving speed.
The control method and control system of cooling fan for refrigerator of the invention, can be automatic according to the state of refrigerator
The supply voltage for adjusting blower avoids blower and runs at high speed always bring energy consumption and noise problem.
As shown in connection with fig. 7, an embodiment of the present invention provides a kind of specific method of adjustment of the supply voltage of cooling fan,
The described method includes:
M1, the required supply voltage that cooling fan is obtained according to the operating status of refrigerator, are indicated with the first supply voltage；
The specific implementation process of the step is referring to above-mentioned example, and it is no longer repeated herein.
M2, detection correspond to the supply voltage that the cooling fan actually enters, and are indicated with the second supply voltage；The process
Corresponding sensing equipment can be set at cooling fan, to obtain the supply voltage that it is actually entered, in case subsequent calls.
M3, the second supply voltage is adjusted according to first supply voltage, and judge cooling fan real-world operation the
Whether two revolving speeds the first revolving speed corresponding with the first supply voltage identical, if so, continue to monitor, if it is not, according to the second revolving speed with
And first revolving speed adjustment blower revolving speed so that the blower operating revolving speed be matched with first revolving speed.
In the specific embodiment of the invention, the second supply voltage is adjusted to identical as the first supply voltage.
In better embodiment of the present invention, supplied by the way of PID control according to first supply voltage adjustment second
Piezoelectric voltage.Specifically, in conjunction with shown in Fig. 8, Fig. 9, in this specific embodiment, the input parameter of the PID control are as follows: second
The error of corresponding second revolving speed of supply voltage and the second revolving speed the first revolving speed corresponding with the first supply voltage；
The treatment process of the PID control are as follows: use ratio and integral two-way processing input parameter to obtain input current
Value, and the second new revolving speed is converted to after the input current value is formed the second new supply voltage by fuzzy control, and
Real-time monitoring is carried out, it is reciprocal to adjust, the second supply voltage is adjusted to identical as the first supply voltage.
During voltage adjustment, the revolving speed of cooling fan not necessarily can be synchronous with supply voltage, in this way, in order to make to adjust
Result it is more accurate, while adjusting supply voltage, adjusted by the speed feedback of cooling fan as a result, correspondingly, sentencing
Whether the second revolving speed the first revolving speed corresponding with the first supply voltage of the real-world operation of disconnected cooling fan is identical, if so, continuing
Monitoring, if it is not, the second revolving speed of blower is adjusted to identical as the first revolving speed corresponding to required first voltage, and return step
M1 makes cooling fan be in the state for implementing monitoring and adjustment, keeps adjustment result more accurate, to meet the operation need of refrigerator
It asks, while so that refrigerator is in steady operational status, energy saving and reduction noise.
In conjunction with shown in Figure 10, Figure 11, an embodiment of the present invention also provides the adaptive tune of a cooling fan supply voltage
Whole circuit, the circuit include: blower PWM input circuit 400, blower A/D converter circuit 500 and blower feed circuit 600；
The blower PWM input circuit 400 is used to obtain required first of cooling fan according to the operating status of refrigerator
Supply voltage；The blower A/D converter circuit 500, which is used to detect, corresponds to the second power supply electricity that the cooling fan actually enters
Pressure, and the second supply voltage is adjusted according to first supply voltage；The blower feed circuit 600 is for judging cooling fan
Real-world operation the second revolving speed the first revolving speed corresponding with the first supply voltage it is whether identical, if so, continue to monitor, if it is not,
According to the second revolving speed and the revolving speed of the first revolving speed adjustment blower, so that the revolving speed of blower operating is matched with described first turn
Speed.
In addition, further including power module in the circuit, for powering for entire circuit；It should be noted that forming the electricity
Although the electronic device on road is the electronic devices such as common switch, resistance, capacitor and connector terminals, but by this kind of electricity
It is proprietary design of the invention that sub- device, which forms circuit described in the invention by functional requirement various combination,.
In conclusion adaptive adjustment circuit of the present invention by setting cooling fan supply voltage, it can be according to heat dissipation
It the required supply voltage of blower and actually enters supply voltage and is adaptively accurately adjusted, and turned by cooling fan
Speed is fed back, so that adjustment result is more accurate, meets the operation demand of refrigerator, refrigerator is made to be in the same of steady operational status
When, energy saving and reduction noise.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method of the cooling fan for refrigerator, which is characterized in that the described method includes:
S1, control that cooling fan is in the open state or closed state according to the first operating status of refrigerator；
If S2, cooling fan are in the open state, the supply voltage of cooling fan is adjusted according to the second operating status of refrigerator；
First operating status of refrigerator includes: in defrost/and refrigerator doors open, compressor unlatching/closing；
Second operating status of refrigerator includes: the first time starting after defrost, compressor open after power on for the first time, at refrigerator
In quickly cooling or the current environmental temperature of quick-frozen state and refrigerator.
2. the control method of the cooling fan according to claim 1 for refrigerator, which is characterized in that for step S1,
The method specifically includes:
If S11, refrigerator are in defrost and/or refrigerator doors are opened, cooling fan closing is controlled.
3. the control method of the cooling fan according to claim 2 for refrigerator, which is characterized in that for step S1,
The method specifically includes:
When refrigerator is not in defrost and refrigerator doors are not opened, then S12 is entered step,
If S12, compressor are in close state, cooling fan closing is controlled；
If compressor is in the open state, cooling fan opening is controlled.
4. the control method of the cooling fan according to claim 1 for refrigerator, which is characterized in that the method is also wrapped
It includes:
The mapping relations of the supply voltage of the second operating status and cooling fan are established, and ambient temperature range is divided in advance
For temperature multiple temperature ranges incremented by successively, reflecting between the supply voltage of the cooling fan and the temperature range is established
Penetrate relationship；
Wherein, when first time starting state after refrigerator is in defrost, the voltage for controlling cooling fan is the first predeterminated voltage；
When the compressor of refrigerator is in the first power-up state after opening, the voltage for controlling cooling fan is the second default electricity
Pressure；
When refrigerator is in quickly cooling or quick-frozen state, the voltage for controlling cooling fan is third predeterminated voltage；
First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the supply voltage and temperature range of the cooling fan
It is proportional to.
5. the control method of the cooling fan according to claim 4 for refrigerator, which is characterized in that for step S2,
The method specifically includes:
S21, the first time starting state after whether refrigerator is in defrost is judged, if so, the voltage of control cooling fan is first
Predeterminated voltage, if it is not, executing step S22；
S22, the first the power-up state whether compressor of refrigerator is in after opening is judged, if so, the voltage of control cooling fan
For the second predeterminated voltage, if it is not, executing step S23；
Whether S23, control refrigerator are in quickly cooling or quick-frozen state, if so, the voltage of control cooling fan is third predeterminated voltage,
If it is not, adjusting the supply voltage of cooling fan according to the current environmental temperature of refrigerator.
6. a kind of control system of the cooling fan for refrigerator, which is characterized in that the system comprises:
Monitoring modular, for monitoring the operating status of refrigerator, the operating status includes: the first operating status and the second operation shape
State；First operating status includes: in defrost/and refrigerator doors open, compressor unlatching/closing；The second operating status packet
Include: first time after defrost starting, compressor open after power on for the first time, refrigerator is in quickly cooling or quick-frozen state and refrigerator
Current environmental temperature；
Processing module, for being controlled according to the first operating status of refrigerator, cooling fan is in the open state or closed state；If
Cooling fan is in the open state, then the supply voltage of cooling fan is adjusted according to the second operating status of refrigerator.
7. the control system of the cooling fan according to claim 6 for refrigerator, which is characterized in that
The processing module is specifically used for: if monitoring modular confirmation refrigerator is in defrost and/or refrigerator doors are opened, controlling
Cooling fan processed is closed.
8. the control system of the cooling fan according to claim 7 for refrigerator, which is characterized in that
The processing module is specifically used for: when monitoring modular confirmation refrigerator is not in defrost and refrigerator doors are not opened
When,
If the monitoring modular judges that compressor is in close state, cooling fan closing is controlled；
If the monitoring modular judges that compressor is in the open state, cooling fan opening is controlled.
9. the control system of the cooling fan according to claim 6 for refrigerator, which is characterized in that the system is also wrapped
Include: mapping relations establish module, the mapping relations of the supply voltage for establishing the second operating status and cooling fan, and will
Ambient temperature range is divided into temperature multiple temperature ranges incremented by successively in advance, establish the supply voltage of the cooling fan with
Mapping relations between the temperature range；
Wherein, when first time starting state after refrigerator is in defrost, the voltage for controlling cooling fan is the first predeterminated voltage；
When the compressor of refrigerator is in the first power-up state after opening, the voltage for controlling cooling fan is the second default electricity
Pressure；
When refrigerator is in quickly cooling or quick-frozen state, the voltage for controlling cooling fan is third predeterminated voltage；
First predeterminated voltage > the second predeterminated voltage > third predeterminated voltage, the supply voltage and temperature range of the cooling fan
It is proportional to.
10. the control system of the cooling fan according to claim 9 for refrigerator, which is characterized in that the processing mould
Block is specifically used for:
The first time starting state after whether refrigerator is in defrost is judged by the monitoring modular, if so, control cooling fan
Voltage be the first predeterminated voltage, if it is not, by the monitoring modular judge compressor of refrigerator whether be in open after at the beginning of
Secondary power-up state controls the electricity of cooling fan if whether the compressor of confirmation refrigerator is in the first power-up state after opening
Pressure is the second predeterminated voltage, if it is not, continuing to judge whether refrigerator is in quickly cooling or quick-frozen state by the monitoring modular, if really
Recognize refrigerator and be in quickly cooling or quick-frozen state, then the voltage for controlling cooling fan is third predeterminated voltage, if it is not, then according to refrigerator
The supply voltage of current environmental temperature adjustment cooling fan.
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| CN113899157A (en) * | 2021-10-12 | 2022-01-07 | 珠海格力电器股份有限公司 | Refrigerator control method and device, controller and refrigerator |
| CN114777371A (en) * | 2022-04-08 | 2022-07-22 | 海信（山东）冰箱有限公司 | Refrigerator and noise reduction method thereof |
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| CN109708394B (en) | 2020-10-30 |
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