CN105241171B - Using the controlling method for refrigerator and control system of linear compressor - Google Patents
Using the controlling method for refrigerator and control system of linear compressor Download PDFInfo
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- CN105241171B CN105241171B CN201510746669.XA CN201510746669A CN105241171B CN 105241171 B CN105241171 B CN 105241171B CN 201510746669 A CN201510746669 A CN 201510746669A CN 105241171 B CN105241171 B CN 105241171B
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Abstract
Present invention is disclosed a kind of controlling method for refrigerator and control method using linear compressor, the control method includes：Monitor the environment temperature T residing for refrigerator；By the environment temperature T compared with default environment temperature threshold value T0；If T is more than T0, when the rotating speed that the linear compressor runs time control fine frozen blower fan in the given time is the first rotating speed, if T is less than or equal to T0, when the rotating speed that the linear compressor runs time control fine frozen blower fan in the given time is the second rotating speed, wherein, second rotating speed is more than first rotating speed.The present invention, to increase the stroke of linear compressor inner carrier, avoids linear compressor and is protected by frequency conversion board and cause refrigerator can not normal work by controlling the increase in refrigerator to freeze the rotating speed of blower fan or reducing the rotating speed of cooling blower.
Description
Technical field
The present invention relates to refrigerator and linear compressor technical field, more particularly to a kind of refrigerator control using linear compressor
Method and control system processed.
Background technology
Low-pressure gas is promoted to a kind of driven fluid machinery of gases at high pressure by compressor, is the heart of refrigeration system.
It is operated after being compressed with piston to it, to exhaust from the refrigerant gas of air intake duct suction low-temp low-pressure by motor
Pipe discharges the refrigerant gas of HTHP, power is provided for kind of refrigeration cycle, so as to realize compression → condensation (heat release) → expansion
The kind of refrigeration cycle of → evaporation (heat absorption).
Linear compressor is widely used in the small refrigerating capacity field such as refrigerator, its is simple in construction, frictional dissipation is few, noise is low,
Can conveniently by regulation voltage-regulation flow, it is more simple and reliable than variable frequency adjustment, can realize that few oil or oil-free lubrication oil etc. are excellent
Point.Chinese patent such as CN 203394701U discloses a kind of linear compressor, and with reference to shown in Fig. 1, it includes exhaust gear 1
With the part of compressor assembly two, compressor assembly includes cylinder 16, piston component, moving-magnetic linear vibration motor, resonant springs
8th, compressor case, piston component include piston 2, piston rod 3, rod end plate 10 and inlet valve 15；Exhaust gear 1 includes air bleeding valve
Piece 17, exhaust valve plate 18 etc..
Be Electronic Control in the linear compressor course of work, when power output is small, the stroke of linear compressor piston 2 compared with
It is small, piston 2 easily occurs and causes compressor failure with being vented the situation that valve plate 18 bumps against.Therefore, linear compressor frequency conversion board is set
Timing, defence program can be set, prevent compressor mechanical part to be damaged, for example, linear compressor frequency conversion board can starting protection journey
Sequence allows linear compressor to be stopped.
When refrigerator works at low temperature, the thermic load of refrigerator is relatively low, and the refrigerating capacity that compartment needs also can be relatively low, this
When, linear compressor can be run with relatively low power output, cause the stroke of linear compressor piston small, shock air bleeding valve be present
The hidden danger of plate.
The content of the invention
In view of the shortcomings of the prior art, present invention solves the technical problem that being to provide a kind of refrigerator using linear compressor
Control method and control system.
In order to solve the above technical problems, the technical proposal of the invention is realized in this way：
A kind of controlling method for refrigerator using linear compressor, the control method include：
Monitor the environment temperature T residing for refrigerator；
By the environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that the linear compressor runs time control fine frozen blower fan in the given time is first
Rotating speed, if T is less than or equal to T0, when the linear compressor runs the rotating speed of time control fine frozen blower fan as the in the given time
Two rotating speeds, wherein, second rotating speed is more than first rotating speed.
As a further improvement on the present invention, methods described also includes：
Monitor the linear compressor running status；
When the linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently；
After the linear compressor running status is normal, currently to freeze described second turn of the size of rotation speed of fan renewal
The value of speed.
As a further improvement on the present invention, methods described also includes：
Monitor the linear compressor running status；
When the linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently；
After the linear compressor running status is normal, current freezing rotation speed of fan is arranged to the 3rd rotating speed, by institute
State the 3rd rotating speed to associate with the environment temperature T, when environment temperature is less than or equal to T, the rotating speed for controlling freezing blower fan is the
Three rotating speeds.
As a further improvement on the present invention, the linear compressor running status is monitored to specifically include：
Judge whether surprisingly stop when the linear compressor is run in the given time；
If, then it is assumed that the linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor, the control system include device for detecting temperature
The master control borad being connected with the device for detecting temperature, wherein,
The device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
The master control borad is used for the environment temperature T compared with default environment temperature threshold value T0；
The master control borad be additionally operable to freeze blower fan rotating speed, if T is more than T0, when the linear compressor in the given time
The rotating speed for running time control fine frozen blower fan is the first rotating speed, if T is less than or equal to T0, when the linear compressor is in the scheduled time
The rotating speed of interior operation time control fine frozen blower fan is the second rotating speed, wherein, second rotating speed is more than first rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to monitor the linear compressor running status, when
During the linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently, when the straight line compresses
After machine running status is normal, currently to freeze the value that the size of rotation speed of fan updates second rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to monitor the linear compressor running status, when
During the linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently, when the straight line compresses
After machine running status is normal, current freezing rotation speed of fan is arranged to the 3rd rotating speed, by the 3rd rotating speed and the environment temperature
T associations are spent, when environment temperature is less than or equal to T, the rotating speed for controlling freezing blower fan is the 3rd rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to judge the linear compressor in the given time
Whether surprisingly stop during operation, if, then it is assumed that the linear compressor running status is abnormal.
What another technical scheme of the present invention was realized in：
A kind of controlling method for refrigerator using linear compressor, the control method include：
Monitor the environment temperature T residing for refrigerator；
By the environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that the linear compressor runs time control cooling blower in the given time is the 4th
Rotating speed, if T is less than or equal to T0, when the linear compressor runs the rotating speed of time control cooling blower as the in the given time
Five rotating speeds, wherein, the 5th rotating speed is less than the 4th rotating speed.
As a further improvement on the present invention, methods described also includes：
Monitor the linear compressor running status；
When the linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed；
After the linear compressor running status is normal, with described 5th turn of the size renewal of current cooling blower rotating speed
The value of speed.
As a further improvement on the present invention, methods described also includes：
Monitor the linear compressor running status；
When the linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed；
After the linear compressor running status is normal, current cooling blower rotating speed is arranged to the 6th rotating speed, by institute
State the 6th rotating speed to associate with the environment temperature T, when environment temperature is less than or equal to T, control the rotating speed of cooling blower as the
Six rotating speeds.
As a further improvement on the present invention, the linear compressor running status is monitored to specifically include：
Judge whether surprisingly stop when the linear compressor is run in the given time；
If, then it is assumed that the linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor, the control system include device for detecting temperature
The master control borad being connected with the device for detecting temperature, wherein,
The device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
The master control borad is used for the environment temperature T compared with default environment temperature threshold value T0；
The master control borad is additionally operable to control the rotating speed of cooling blower, if T is more than T0, when the linear compressor is in pre- timing
The rotating speed of interior operation time control cooling blower is the 4th rotating speed, if T is less than or equal to T0, when the linear compressor is predetermined
The rotating speed of operation time control cooling blower is the 5th rotating speed in time, wherein, the 5th rotating speed is less than the 4th rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to monitor the linear compressor running status, when
During the linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed, when the straight line compresses
After machine running status is normal, the value of the 5th rotating speed is updated with the size of current cooling blower rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to monitor the linear compressor running status, when
During the linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed, when the straight line compresses
After machine running status is normal, current cooling blower rotating speed is arranged to the 6th rotating speed, by the 6th rotating speed and the environment temperature
T associations are spent, when environment temperature is less than or equal to T, the rotating speed for controlling cooling blower is the 6th rotating speed.
As a further improvement on the present invention, the master control borad is additionally operable to judge the linear compressor in the given time
Whether surprisingly stop during operation, if, then it is assumed that the linear compressor running status is abnormal.
The beneficial effects of the invention are as follows：
The present invention is straight to increase by controlling the increase in refrigerator to freeze the rotating speed of blower fan or reducing the rotating speed of cooling blower
The stroke of wire compression machine inner carrier, avoid linear compressor and protected by frequency conversion board and cause refrigerator can not normal work.
Brief description of the drawings
Fig. 1 is the structural representation of linear compressor in the prior art.
Fig. 2 is the flow chart of controlling method for refrigerator in first embodiment of the invention.
Fig. 3 is the module diagram of refrigerator control system in first embodiment of the invention.
Fig. 4 is the flow chart of controlling method for refrigerator in second embodiment of the invention.
Fig. 5 is the flow chart of controlling method for refrigerator in third embodiment of the invention.
Fig. 6 is the flow chart of controlling method for refrigerator in four embodiment of the invention.
Fig. 7 is the flow chart of controlling method for refrigerator in fifth embodiment of the invention.
Fig. 8 is the flow chart of controlling method for refrigerator in sixth embodiment of the invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings to the specific of the present invention
Embodiment is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in accompanying drawing and root
What the embodiments of the present invention described according to accompanying drawing were merely exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
The structure and/or processing step closely related with the solution of the present invention are shown, and is eliminated and little its of relation of the present invention
His details.
In addition, it should also be noted that, term " comprising ", "comprising" or its any other variant be intended to it is non-exclusive
Property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
Also include the other element that is not expressly set out, or also include for this process, method, article or equipment inherently
Key element.
Join the controlling method for refrigerator shown in Fig. 2, introduced and linear compressor is used in first embodiment of the invention, this implementation
Refrigerator in mode is wind cooling refrigerator, and it is provided with the freezing blower fan for being used for carrying out heat exchange between refrigerating chamber and refrigerating chamber, should
Control method includes：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the first rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the second rotating speed, its
In, the second rotating speed is more than the first rotating speed.
Correspondingly, join shown in Fig. 3, to also disclose a kind of refrigerator using linear compressor in present embodiment and control and be
System, it includes temperature-detecting device 100 and the master control borad being connected with device for detecting temperature 200, wherein：
Device for detecting temperature 100 is used to monitor the environment temperature T residing for refrigerator；
Master control borad 200 is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad 200 be additionally operable to control freezing blower fan rotating speed, if T is more than T0, when linear compressor in the given time
The rotating speed for running time control fine frozen blower fan is the first rotating speed, if T is less than or equal to T0, when linear compressor is transported in the given time
The rotating speed of row time control fine frozen blower fan is the second rotating speed, wherein, the second rotating speed is more than the first rotating speed.
Preferably, the environment temperature T in present embodiment is obtained by temperature sensor, and temperature sensor is arranged at refrigerator
On casing, except of course that can also be obtained outside temperature sensor by other temperature-detecting devices, such as thermometer.
The invention belongs to the control method of refrigerator at low temperature, and default environment temperature threshold value T0 is to be used to define the present invention
In " low temperature " threshold value, could be arranged to 10 DEG C as this presets environment temperature threshold value T0, then the situation of environment temperature T≤10 DEG C is equal
Belong to the category of low temperature, certain 10 DEG C are only a preferable environment temperature threshold value of the invention, in other embodiments can also
It is arranged to other temperature values, it is such as 5 DEG C, 0 DEG C, corresponding " low when this is preset environment temperature threshold value T0 and is arranged to other temperature
The definition of temperature " is then different.
General refrigerator is in low temperature (environment temperature is less than or equal to default environment temperature threshold value) work, the thermic load of refrigerator
Relatively low, the refrigerating capacity that compartment needs also can be relatively low, and now, linear compressor can be run with relatively low power output, be caused
The stroke of linear compressor piston is small, and piston has the risk impinged upon on exhaust valve plate, causes mechanical part to destroy.It is existing straight
Wire compression machine frequency conversion board can typically set frequency conversion defence program, frequency conversion protection be opened when piston slap is vented valve plate, so as to ice
Case is stopped.To avoid linear compressor from being protected by frequency conversion board, refrigerator needs the operation of forcibly changing refrigerator in low-temperature working
Operating mode.
In present embodiment, if T is more than T0, the rotating speed for controlling freezing blower fan is the first rotating speed, if T is less than or equal to
T0, then the rotating speed for controlling freezing blower fan is the second rotating speed, wherein, the second rotating speed is more than the first rotating speed, to speed the refrigeration of refrigerator
Room and the heat exchange of refrigerating chamber, linear compressor is set to provide more refrigerating capacitys, straight line compression when running in the given time
The refrigerating capacity of machine is related to the stroke of internal piston, and the stroke of piston is bigger, and the work(that piston is done within the unit interval is more, because
This just can improve more refrigerating capacitys, and therefore, the rotating speed of increase freezing blower fan can increase the stroke of linear compressor inner carrier.
When environment temperature T is less than default environment temperature threshold value T0, the thermic load of refrigerator is relatively low, the refrigerating capacity that compartment needs
Can be relatively low.In the case where refrigerating capacity is specified, if refrigerating circuit is still freezed according to normal condition, linear compressor is lived
Stroke is filled in reduce.Refrigerator in present embodiment is air-cooled single system refrigerator, and it is used to carry out refrigerating chamber and freezing by increase
The rotating speed of the freezing blower fan of room heat exchange, when the linear compressor is run in the given time, increases linear compressor inner carrier
Stroke, avoid piston and the shock being vented between valve plate, frequency conversion board will not open frequency conversion defence program, and refrigerator can be just
Often operation.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, is higher than 10 DEG C in environment temperature T
When, operationally, the rotating speed for freezing blower fan is the first rotating speed 2000r/min to linear compressor, when monitoring that environment temperature T is less than
Or during equal to T0, as environment temperature be 0 DEG C, then when linear compressor run, control freeze blower fan rotating speed be the second rotating speed
2200r/min.The heat exchange of quickening refrigerating chamber and refrigerating chamber is so, it is possible, that is, increases the system needed for refrigerator in the unit interval
Cold, the stroke of piston can increase in linear compressor.
The controlling method for refrigerator of linear compressor is used in second embodiment of the invention introduced below, in present embodiment
Refrigerator be wind cooling refrigerator, it is provided between refrigerating chamber and refrigerating chamber is used to carry out the freezing blower fan of heat exchange, the controlling party
Method includes：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the first rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the second rotating speed, its
In, the second rotating speed is more than the first rotating speed；
Above-mentioned steps are identical with first embodiment, further, join shown in Fig. 4, also include in present embodiment：
Monitor linear compressor running status；
When linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently；
After linear compressor running status is normal, currently to freeze the value that the size of rotation speed of fan updates the second rotating speed.
Monitoring linear compressor running status specifically includes：
Judge whether surprisingly stop when linear compressor is run in the given time；
If, then it is assumed that linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor is also disclosed in present embodiment, it includes temperature
Degree detection means and the master control borad being connected with device for detecting temperature, wherein：
Device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
Master control borad is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad is additionally operable to the rotating speed of control freezing blower fan, if T is more than T0, when linear compressor is run in the given time
The rotating speed of time control fine frozen blower fan is the first rotating speed, if T is less than or equal to T0, when linear compressor is run in the given time
The rotating speed for controlling freezing blower fan is the second rotating speed, wherein, the second rotating speed is more than the first rotating speed；
Master control borad is additionally operable to monitor linear compressor running status, when linear compressor running status exception, current
Increase predetermined amplitude on freezing rotation speed of fan, after linear compressor running status is normal, currently to freeze the big of rotation speed of fan
The value of the second rotating speed of small renewal.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, monitors obtained environment temperature T
For 0 DEG C, it is less than default 10 DEG C of environment temperature threshold value, and the rotating speed for controlling freezing blower fan is 2200r/min, increases straight line pressure with this
The stroke of piston in contracting machine.Hereafter linear compressor running status is monitored, if linear compressor operation exception, according to reservation amplitude
100r/min continues the rotating speed of increase freezing blower fan, then freezes the rotating speed of blower fan and increase to 2300r/min.
Further, after the rotating speed of freezing blower fan increases to 2300r/min, also may proceed to monitor linear compressor operation
State, if linear compressor operation exception, according to rotating speeds of the amplitude 100r/min after increase freezing blower fan is subscribed, until straight line pressure
Contracting machine normal operation.In the present embodiment after linear compressor normal operation, the rotating speed for freezing blower fan is 2500r/min, meanwhile,
The preset value of second rotating speed is updated to the rotating speed 2500r/min of current freezing blower fan.Hereafter, if environment temperature is less than 10 DEG C,
The rotating speed that freezing blower fan is directly controlled when linear compressor is run in the given time is 2500r/min.Freeze the rotating speed of blower fan
Control process is the process of a dynamic circulation, and blower fan is freezed when linear compressor starts at low temperature without every time from default
The first rotating speed increased according to predetermined amplitude.
The controlling method for refrigerator of linear compressor is used in third embodiment of the invention introduced below, in present embodiment
Refrigerator be wind cooling refrigerator, it is provided between refrigerating chamber and refrigerating chamber is used to carry out the freezing blower fan of heat exchange, the controlling party
Method includes：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the first rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control fine frozen blower fan in the given time is the second rotating speed, its
In, the second rotating speed is more than the first rotating speed；
Above-mentioned steps are identical with first embodiment, further, join shown in Fig. 5, also include in present embodiment：
Monitor linear compressor running status；
When linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently；
After linear compressor running status is normal, current freezing rotation speed of fan is arranged to the 3rd rotating speed, by the 3rd turn
Speed associates with environment temperature T, and when environment temperature is less than or equal to T, the rotating speed for controlling freezing blower fan is the 3rd rotating speed.
Monitoring linear compressor running status specifically includes：
Judge whether surprisingly stop when linear compressor is run in the given time；
If, then it is assumed that linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor is also disclosed in present embodiment, it includes temperature
Degree detection means and the master control borad being connected with device for detecting temperature, wherein：
Device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
Master control borad is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad is additionally operable to the rotating speed of control freezing blower fan, if T is more than T0, when linear compressor is run in the given time
The rotating speed of time control fine frozen blower fan is the first rotating speed, if T is less than or equal to T0, when linear compressor is run in the given time
The rotating speed for controlling freezing blower fan is the second rotating speed, wherein, the second rotating speed is more than the first rotating speed；
Master control borad is additionally operable to monitor linear compressor running status, when linear compressor running status exception, current
Increase predetermined amplitude on freezing rotation speed of fan, after linear compressor running status is normal, will currently freeze rotation speed of fan setting
For the 3rd rotating speed, the 3rd rotating speed is associated with environment temperature T, when environment temperature is less than or equal to T, control freezing blower fan turns
Speed is the 3rd rotating speed.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, monitors obtained environment temperature T
For 0 DEG C, it is less than default 10 DEG C of environment temperature threshold value, and the rotating speed for controlling freezing blower fan is 2200r/min, increases straight line pressure with this
The stroke of piston in contracting machine.Hereafter linear compressor running status is monitored, if linear compressor operation exception, according to reservation amplitude
100r/min continues the rotating speed of increase freezing blower fan, then freezes the rotating speed of blower fan and increase to 2300r/min.
Further, after the rotating speed of freezing blower fan increases to 2300r/min, also may proceed to monitor linear compressor operation
State, if linear compressor operation exception, according to rotating speeds of the amplitude 100r/min after increase freezing blower fan is subscribed, until straight line pressure
Contracting machine normal operation, and the rotating speed of current freezing blower fan is associated with current environmental temperature.
Specifically, in the present embodiment after linear compressor normal operation, the rotating speed for freezing blower fan is 2500r/min, will
The rotating speed 2500r/min of current freezing blower fan is arranged to freeze the 3rd rotating speed of blower fan, and by the 3rd rotating speed 2500r/min with
0 DEG C current of environment temperature is associated, and refrigerator is in running next time, if monitoring, environment temperature is less than or equal to 0
DEG C when, directly control freezing blower fan rotating speed be the 3rd rotating speed 2500r/min.If monitor environment temperature 0 DEG C~10 DEG C it
Between, the rotating speed for freezing blower fan is controlled still according to the method in second embodiment.
The control process that rotation speed of fan is freezed in the present embodiment is the process of a dynamic circulation, and refrigerator starts at low temperature
When cooling blower without increasing successively according to predetermined amplitude from default rotating speed every time.
Join the controlling method for refrigerator shown in Fig. 6, introduced and linear compressor is used in four embodiment of the invention, this implementation
Refrigerator in mode is wind cooling refrigerator or direct cooling refrigerator, and refrigerating circuit includes evaporator, condenser etc., set in condenser side
There is the cooling blower for being radiated to condenser, the control method includes：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 4th rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 5th rotating speed, its
In, the 5th rotating speed is less than the 4th rotating speed.
Correspondingly, a kind of refrigerator control system using linear compressor is also disclosed in present embodiment, it includes temperature
Degree detection means and the master control borad being connected with device for detecting temperature, wherein：
Device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
Master control borad is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad is additionally operable to control the rotating speed of cooling blower, if T is more than T0, when linear compressor is run in the given time
The rotating speed of time control cooling blower is the 4th rotating speed, if T is less than or equal to T0, when linear compressor is run in the given time
The rotating speed for controlling cooling blower is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed.
General refrigerator is in low temperature (environment temperature is less than or equal to default environment temperature threshold value) work, the thermic load of refrigerator
Relatively low, the refrigerating capacity that compartment needs also can be relatively low, and now, linear compressor can be run with relatively low power output, be caused
The stroke of linear compressor piston is small, and piston has the risk impinged upon on exhaust valve plate, causes mechanical part to destroy.It is existing straight
Wire compression machine frequency conversion board can typically set frequency conversion defence program, frequency conversion protection be opened when piston slap is vented valve plate, so as to ice
Case is stopped.To avoid linear compressor from being protected by frequency conversion board, refrigerator needs the operation of forcibly changing refrigerator in low-temperature working
Operating mode.
In present embodiment, if T is more than T0, the rotating speed for controlling cooling blower is the 4th rotating speed, if T is less than or equal to
T0, the then rotating speed for controlling cooling blower are the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed, to slow down dissipating for condenser
Thermal velocity, and the refrigerating capacity needed for refrigerator is specified under certain conditions, can be caused after the rotating speed reduction of cooling blower straight
Refrigerating capacity that wire compression machine provides within the unit interval reduces, in order to maintain specified refrigerating capacity, the piston in linear compressor
Acting needs to increase, i.e. the stroke of piston needs to increase.Therefore, work in linear compressor can be increased by reducing the rotating speed of cooling blower
The stroke of plug.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, is higher than 10 DEG C in environment temperature T
When, operationally, the rotating speed of cooling blower is the 4th rotating speed 3000r/min to linear compressor, when monitoring that environment temperature T is less than
Or during equal to T0, as environment temperature be 0 DEG C, then when linear compressor is run, the rotating speed for controlling cooling blower is the 5th rotating speed
2800r/min.It so, it is possible to slow down the radiating of condenser, in order to obtain identical refrigerating capacity, straight line compression within the unit interval
The stroke of piston can increase in machine.
The controlling method for refrigerator of linear compressor is used in fifth embodiment of the invention introduced below, in present embodiment
Refrigerator be wind cooling refrigerator or direct cooling refrigerator, refrigerating circuit includes evaporator, condenser etc., condenser side be provided be used for
The cooling blower to be radiated to condenser, the control method include：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 4th rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 5th rotating speed, its
In, the 5th rotating speed is less than the 4th rotating speed；
Above-mentioned steps are identical with the 4th embodiment, further, join shown in Fig. 7, also include in present embodiment：
Monitor linear compressor running status；
When linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed；
After linear compressor running status is normal, the value of the 5th rotating speed is updated with the size of current cooling blower rotating speed.
Monitoring linear compressor running status specifically includes：
Judge whether surprisingly stop when linear compressor is run in the given time；
If, then it is assumed that linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor is also disclosed in present embodiment, it includes temperature
Degree detection means and the master control borad being connected with device for detecting temperature, wherein：
Device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
Master control borad is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad is additionally operable to control the rotating speed of cooling blower, if T is more than T0, when linear compressor is run in the given time
The rotating speed of time control cooling blower is the 4th rotating speed, if T is less than or equal to T0, when linear compressor is run in the given time
The rotating speed for controlling cooling blower is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed；
Master control borad is additionally operable to monitor linear compressor running status, when linear compressor running status exception, current
Reduce predetermined amplitude on cooling blower rotating speed, after linear compressor running status is normal, with the big of current cooling blower rotating speed
The value of the 5th rotating speed of small renewal.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, monitors obtained environment temperature T
For 0 DEG C, it is less than default 10 DEG C of environment temperature threshold value, and the rotating speed for controlling cooling blower is 2800r/min, increases straight line pressure with this
The stroke of piston in contracting machine.Hereafter linear compressor running status is monitored, if linear compressor operation exception, according to reservation amplitude
100r/min continues to reduce the rotating speed of cooling blower, then the rotating speed of cooling blower increases to 2700r/min.
Further, after the rotating speed of cooling blower is reduced to 2700r/min, also may proceed to monitor linear compressor operation
State, if linear compressor operation exception, according to amplitude 100r/min is subscribed after the rotating speed for reducing cooling blower, until straight line pressure
Contracting machine normal operation.In the present embodiment after linear compressor normal operation, the rotating speed of cooling blower is 2500r/min, meanwhile,
The preset value of 5th rotating speed is updated to the rotating speed 2500r/min of current cooling blower.Hereafter, if environment temperature is less than 10 DEG C,
The rotating speed that cooling blower is directly controlled when linear compressor is run in the given time is 2500r/min.The rotating speed of cooling blower
Control process is the process of a dynamic circulation, and cooling blower is without every time from default when linear compressor starts at low temperature
The 4th rotating speed reduced according to predetermined amplitude.
The controlling method for refrigerator of linear compressor is used in sixth embodiment of the invention introduced below, in present embodiment
Refrigerator be wind cooling refrigerator or direct cooling refrigerator, refrigerating circuit includes evaporator, condenser etc., condenser side be provided be used for
The cooling blower to be radiated to condenser, the control method include：
Monitor the environment temperature T residing for refrigerator；
By environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 4th rotating speed,
If T is less than or equal to T0, when the rotating speed that linear compressor runs time control cooling blower in the given time is the 5th rotating speed, its
In, the 5th rotating speed is less than the 4th rotating speed；
Above-mentioned steps are identical with the 4th embodiment, further, join shown in Fig. 8, also include in present embodiment：
Monitor linear compressor running status；
When linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed；
After linear compressor running status is normal, current cooling blower rotating speed is arranged to the 6th rotating speed, by the 6th turn
Speed associates with environment temperature T, and when environment temperature is less than or equal to T, the rotating speed for controlling cooling blower is the 6th rotating speed.
Monitoring linear compressor running status specifically includes：
Judge whether surprisingly stop when linear compressor is run in the given time；
If, then it is assumed that linear compressor running status is abnormal.
Correspondingly, a kind of refrigerator control system using linear compressor is also disclosed in present embodiment, it includes temperature
Degree detection means and the master control borad being connected with device for detecting temperature, wherein：
Device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
Master control borad is used for environment temperature T compared with default environment temperature threshold value T0；
Master control borad is additionally operable to control the rotating speed of cooling blower, if T is more than T0, when linear compressor is run in the given time
The rotating speed of time control cooling blower is the 4th rotating speed, if T is less than or equal to T0, when linear compressor is run in the given time
The rotating speed for controlling cooling blower is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed；
Master control borad is additionally operable to monitor linear compressor running status, when linear compressor running status exception, current
Reduce predetermined amplitude on cooling blower rotating speed, after linear compressor running status is normal, current cooling blower rotating speed is set
For the 6th rotating speed, the 6th rotating speed is associated with environment temperature T, when environment temperature is less than or equal to T, controls turning for cooling blower
Speed is the 6th rotating speed.
In the specific embodiment of the present invention, it is 10 DEG C to preset environment temperature threshold value T0, monitors obtained environment temperature T
For 0 DEG C, it is less than default 10 DEG C of environment temperature threshold value, and the rotating speed for controlling cooling blower is 2800r/min, increases straight line pressure with this
The stroke of piston in contracting machine.Hereafter linear compressor running status is monitored, if linear compressor operation exception, according to reservation amplitude
100r/min continues to reduce the rotating speed of cooling blower, then the rotating speed of cooling blower is reduced to 2700r/min.
Further, after the rotating speed of cooling blower is reduced to 2700r/min, also may proceed to monitor linear compressor operation
State, if linear compressor operation exception, according to amplitude 100r/min is subscribed after the rotating speed for reducing cooling blower, until straight line pressure
Contracting machine normal operation, and the rotating speed of current cooling blower is associated with current environmental temperature.
Specifically, in the present embodiment after linear compressor normal operation, the rotating speed of cooling blower is 2500r/min, will
The rotating speed 2500r/min of current cooling blower is arranged to the 6th rotating speed of cooling blower, and by the 6th rotating speed 2500r/min with
0 DEG C current of environment temperature is associated, and refrigerator is in running next time, if monitoring, environment temperature is less than or equal to 0
DEG C when, the rotating speed for directly controlling cooling blower is the 6th rotating speed 2500r/min.If monitor environment temperature 0 DEG C~10 DEG C it
Between, the rotating speed of cooling blower is controlled still according to the method in the 5th embodiment.
The control process of cooling blower rotating speed is the process of a dynamic circulation in the present embodiment, and refrigerator starts at low temperature
When cooling blower without reducing successively according to predetermined amplitude from default rotating speed every time.
It should be noted that " scheduled time " defined in the present invention is to maintain constant, i.e., linear compressor is in difference
Run time in cycle keeps constant, and the heating parameters in " scheduled time " inner heating device can change.
Further, each embodiment of the present invention illustrates in the case where refrigerator load is constant, does not examine
Consider outer goodses and be put into the situation that refrigerator causes temperature change in refrigerator, height has such as been put into refrigerator in refrigerator running
During warm food etc., the situation of the refrigerating capacity increase of refrigerator needs can be caused.
As can be seen from the above technical solutions, the present invention is by controlling the increase in refrigerator to freeze rotating speed or the reduction of blower fan
The rotating speed of cooling blower, to increase the stroke of linear compressor inner carrier, avoid linear compressor and protected and led by frequency conversion board
Cause refrigerator can not normal work.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above it is a series of describe in detail only for the application feasibility embodiment specifically
Bright, they are simultaneously not used to limit the protection domain of the application, all equivalent implementations made without departing from the application skill spirit
Or change should be included within the protection domain of the application.
Claims (12)
1. a kind of controlling method for refrigerator using linear compressor, it is characterised in that the control method includes：
Monitor the environment temperature T residing for refrigerator；
By the environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that the linear compressor runs time control fine frozen blower fan in the given time is the first rotating speed,
If T is less than or equal to T0, when the rotating speed that the linear compressor runs time control fine frozen blower fan in the given time is second turn
Speed, wherein, second rotating speed is more than first rotating speed.
2. the controlling method for refrigerator of linear compressor is used as claimed in claim 1, it is characterised in that methods described is also wrapped
Include：
Monitor the linear compressor running status；
When the linear compressor running status exception, increase predetermined amplitude on freezing rotation speed of fan currently；
After the linear compressor running status is normal, second rotating speed is updated currently to freeze the size of rotation speed of fan
Value.
3. the controlling method for refrigerator of linear compressor is used as claimed in claim 2, it is characterised in that monitor the straight line pressure
Contracting machine running status specifically includes：
Judge whether surprisingly stop when the linear compressor is run in the given time；
If, then it is assumed that the linear compressor running status is abnormal.
4. a kind of refrigerator control system using linear compressor, it is characterised in that the control system fills including temperature monitoring
The master control borad put and be connected with the device for detecting temperature, wherein,
The device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
The master control borad is used for the environment temperature T compared with default environment temperature threshold value T0；
The master control borad be additionally operable to control freezing blower fan rotating speed, if T is more than T0, when the linear compressor in the given time
The rotating speed for running time control fine frozen blower fan is the first rotating speed, if T is less than or equal to T0, when the linear compressor is in the scheduled time
The rotating speed of interior operation time control fine frozen blower fan is the second rotating speed, wherein, second rotating speed is more than first rotating speed.
5. the refrigerator control system of linear compressor is used as claimed in claim 4, it is characterised in that the master control borad is also used
In monitoring the linear compressor running status, when the linear compressor running status exception, turn in currently freezing blower fan
Increase predetermined amplitude in speed, after the linear compressor running status is normal, currently to freeze the renewal of the size of rotation speed of fan
The value of second rotating speed.
6. the refrigerator control system of linear compressor is used as claimed in claim 5, it is characterised in that the master control borad is also used
Whether surprisingly stop when judging that the linear compressor is run in the given time, if, then it is assumed that the linear compressor
Running status is abnormal.
7. a kind of controlling method for refrigerator using linear compressor, it is characterised in that the control method includes：
Monitor the environment temperature T residing for refrigerator；
By the environment temperature T compared with default environment temperature threshold value T0；
If T is more than T0, when the rotating speed that the linear compressor runs time control cooling blower in the given time is the 4th rotating speed,
If T is less than or equal to T0, when the rotating speed that the linear compressor runs time control cooling blower in the given time is the 5th turn
Speed, wherein, the 5th rotating speed is less than the 4th rotating speed.
8. the controlling method for refrigerator of linear compressor is used as claimed in claim 7, it is characterised in that methods described is also wrapped
Include：
Monitor the linear compressor running status；
When the linear compressor running status exception, reduce predetermined amplitude on current cooling blower rotating speed；
After the linear compressor running status is normal, the 5th rotating speed is updated with the size of current cooling blower rotating speed
Value.
9. the controlling method for refrigerator of linear compressor is used as claimed in claim 8, it is characterised in that monitor the straight line pressure
Contracting machine running status specifically includes：
Judge whether surprisingly stop when the linear compressor is run in the given time；
If, then it is assumed that the linear compressor running status is abnormal.
10. a kind of refrigerator control system using linear compressor, it is characterised in that the control system fills including temperature monitoring
The master control borad put and be connected with the device for detecting temperature, wherein,
The device for detecting temperature is used to monitor the environment temperature T residing for refrigerator；
The master control borad is used for the environment temperature T compared with default environment temperature threshold value T0；
The master control borad be additionally operable to control cooling blower rotating speed, if T is more than T0, when the linear compressor in the given time
The rotating speed for running time control cooling blower is the 4th rotating speed, if T is less than or equal to T0, when the linear compressor is in the scheduled time
The rotating speed of interior operation time control cooling blower is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed.
11. the refrigerator control system of linear compressor is used as claimed in claim 10, it is characterised in that the master control borad is also
For monitoring the linear compressor running status, when the linear compressor running status exception, in current cooling blower
Reduce predetermined amplitude on rotating speed, after the linear compressor running status is normal, with the size of current cooling blower rotating speed more
The value of new 5th rotating speed.
12. the refrigerator control system of linear compressor is used as claimed in claim 11, it is characterised in that the master control borad is also
Whether surprisingly stop during for judging that the linear compressor is run in the given time, if, then it is assumed that the straight line compression
Machine running status is abnormal.
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| CN105258446B (en) * | 2015-11-05 | 2018-08-10 | 青岛海尔股份有限公司 | Using the controlling method for refrigerator and control system of linear compressor |
| CN106642978A (en) * | 2016-12-28 | 2017-05-10 | 青岛海尔股份有限公司 | Refrigerator adopting linear compressor and starting control method of refrigerator |
| CN109307400B (en) * | 2017-07-28 | 2020-11-20 | 合肥美的电冰箱有限公司 | Refrigerator refrigerating capacity control method and device and refrigerator |
| CN108106322A (en) * | 2017-11-21 | 2018-06-01 | 广州美的华凌冰箱有限公司 | Progress control method, device, refrigerator and computer readable storage medium |
| CN109405408B (en) * | 2018-10-18 | 2021-01-01 | 长虹美菱股份有限公司 | Fan motor rotating speed control method and refrigerator applying same |
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| KR0162454B1 (en) * | 1995-12-29 | 1999-03-20 | 구자홍 | Refrigerator control apparatus using a linear compressor |
| KR100207090B1 (en) * | 1997-06-28 | 1999-07-15 | 윤종용 | Refrigerator compressor control method |
| US6084320A (en) * | 1998-04-20 | 2000-07-04 | Matsushita Refrigeration Company | Structure of linear compressor |
| DE19952578B4 (en) * | 1998-11-04 | 2005-11-24 | Lg Electronics Inc. | Apparatus and method for controlling a linear compressor |
| KR100317301B1 (en) * | 2000-01-21 | 2001-12-22 | 구자홍 | apparatus and method for sensing position of piston in linear compressor |
| US6877326B2 (en) * | 2002-03-20 | 2005-04-12 | Lg Electronics Inc. | Operation control apparatus and method of linear compressor |
| BR0301492A (en) * | 2003-04-23 | 2004-12-07 | Brasil Compressores Sa | Linear compressor resonance frequency adjustment system |
| BRPI0400108B1 (en) * | 2004-01-22 | 2017-03-28 | Empresa Brasileira De Compressores S A - Embraco | linear compressor and control method of a linear compressor |
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Effective date of registration: 20180511 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Patentee after: Qingdao Haier Special Refrigerator Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Patentee before: Qingdao Hair Co., Ltd. |
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