CN105241174B - 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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- CN105241174B CN105241174B CN201510749926.5A CN201510749926A CN105241174B CN 105241174 B CN105241174 B CN 105241174B CN 201510749926 A CN201510749926 A CN 201510749926A CN 105241174 B CN105241174 B CN 105241174B
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Abstract
Present invention is disclosed a kind of controlling method for refrigerator and control system 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, the ratio for then controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, the ratio for then controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein, the second refrigerant ratio is less than the first refrigerant ratio, during so that the linear compressor being run in the given time, increases the stroke of the linear compressor inner carrier.The present invention flows to the refrigerant ratio of freezing refrigerating circuit by reducing, and 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.
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 CN203394701U discloses a kind of linear compressor, and with reference to shown in Fig. 1, it includes the He of exhaust gear 1
The part of compressor assembly two, compressor assembly include cylinder 16, piston component, moving-magnetic linear vibration motor, resonant springs 8,
Compressor case, piston component include piston 2, piston rod 3, rod end plate 10 and inlet valve 15；Exhaust gear 1 includes exhaust valve plate
17th, it is vented 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, the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if
T is less than or equal to T0, then the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein,
The second refrigerant ratio is less than the first refrigerant ratio, during so that the linear compressor being run in the given time, increases
Add the stroke of the linear compressor inner carrier.
As a further improvement on the present invention, methods described also includes：
If T is more than T0, the ratio for controlling refrigerant flow direction refrigeration loop is default 3rd refrigerant ratio, if
T is less than or equal to T0, then the ratio for controlling refrigerant flow direction refrigeration loop is default 4th refrigerant ratio, wherein,
The 4th refrigerant ratio is more than the 3rd refrigerant ratio, and the difference of the first refrigerant ratio and second refrigerant ratio
Value is equal with the difference of the 4th refrigerant ratio and the 3rd refrigerant ratio.
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, subtract in the refrigerant ratio of current flow direction freezing refrigerating circuit
Small predetermined ratio；
After the linear compressor running status is normal, the refrigerant scale of refrigerating circuit is freezed with current flow direction
Update the value of the second refrigerant ratio.
As a further improvement on the present invention, methods described also includes：
Monitor the linear compressor running status；
When running status exception occurs in the linear compressor, in the refrigerant ratio of current flow direction freezing refrigerating circuit
Upper reduction predetermined ratio；
When the linear compressor running status is normal, current flow direction is freezed to the refrigerant ratio setting of refrigerating circuit
For the 5th refrigerant ratio, the 5th refrigerant ratio is associated with the environment temperature T, when environment temperature is less than or equal to
During T, with the flow direction of the 5th refrigerant ratio control system cryogen.
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 the refrigerant ratio of control flow direction freezing refrigerating circuit, if T is more than T0, control refrigeration
The ratio of agent flow direction freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default second refrigerant ratio, wherein, the second refrigerant ratio is less than the first system
Cryogen ratio, during so that the linear compressor being run in the given time, increase the stroke of the linear compressor inner carrier.
As a further improvement on the present invention, the master control borad is additionally operable to the refrigerant ratio that control flows to refrigeration loop
Example, if T is more than T0, the ratio for controlling refrigerant flow direction refrigeration loop is default 3rd refrigerant ratio, if T is less than
Or equal to T0, then the ratio for controlling refrigerant flow direction refrigeration loop is default 4th refrigerant ratio, wherein, described
Four refrigerant ratios are more than the 3rd refrigerant ratio, and the difference of the first refrigerant ratio and second refrigerant ratio and the
The difference of four refrigerant ratios and the 3rd refrigerant ratio is equal.
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 ratio in the refrigerant ratio of current flow direction freezing refrigerating circuit
Example, after the linear compressor running status is normal, the refrigerant scale that refrigerating circuit is freezed with current flow direction updates
The value of the second refrigerant ratio.
As a further improvement on the present invention, the master control borad is additionally operable to monitor the linear compressor running status, when
When running status exception occurs in the linear compressor, reduce in the refrigerant ratio of current flow direction freezing refrigerating circuit predetermined
Ratio, when the linear compressor running status is normal, it is by the refrigerant ratio setting that current flow direction freezes refrigerating circuit
5th refrigerant ratio, the 5th refrigerant ratio is associated with the environment temperature T, when environment temperature is less than or equal to T
When, with the flow direction of the 5th refrigerant ratio control system cryogen.
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 flows to the refrigerant ratio of freezing refrigerating circuit by reducing, to increase the row of linear compressor inner carrier
Journey, 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.
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, 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, the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if
T is less than or equal to T0, then the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein,
Second refrigerant ratio is less than the first refrigerant ratio, during so that linear compressor being run in the given time, increases straight line pressure
The stroke of contracting machine inner carrier.
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 is additionally operable to the refrigerant ratio of control flow direction freezing refrigerating circuit, if T is more than T0, control refrigeration
The ratio of agent flow direction freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default second refrigerant ratio, wherein, second refrigerant ratio is less than the first refrigerant
Ratio, during so that linear compressor being run in the given time, increase the stroke of linear compressor inner carrier.
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 ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first
Refrigerant ratio A1, if T is less than or equal to T0, the refrigerant ratio of flow direction freezing refrigerating circuit is reduced, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default second refrigerant ratio A2, wherein A1 ＞ A2.
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.The refrigerant ratio of freezing refrigerating circuit is flowed in present embodiment by reducing, straight line compression can be increased
The stroke of piston in machine, avoids piston and the shock being vented between valve plate, and frequency conversion board will not open frequency conversion defence program, ice
Case being capable of normal operation.
Preferably, in present embodiment refrigerant total amount keep it is constant, refrigerant flow to respectively freezing refrigerating circuit and
In refrigeration loop, when reducing the refrigerant ratio for flowing to freezing refrigerating circuit, the refrigerant in refrigeration loop is flowed to
Increase more corresponding than regular meeting, and the increased refrigerant ratio in refrigeration loop is equal to the refrigerant ratio of freezing refrigerating circuit reduction
Example.If T is more than T0, the ratio in refrigerant flow direction refrigeration loop is default 3rd refrigerant ratio A3, if T is less than or waited
In T0, the ratio in refrigerant flow direction refrigeration loop is default 4th refrigerant ratio A4, wherein, the 4th refrigerant ratio
A4 is more than the 3rd refrigerant ratio A3, and the difference of the first refrigerant ratio and second refrigerant ratio and the 4th refrigerant ratio
It is equal with the difference of the 3rd refrigerant ratio, i.e. A1-A2=A4-A3.
Certainly, it can also only reduce the ratio of refrigerant in freezing refrigerating circuit in other embodiments, and keep cold
Hide the constant rate of refrigerant in loop；Or reduce the ratio of refrigerant in freezing refrigerating circuit and refrigeration loop simultaneously
Example, in this way, the total amount of refrigerant can be reduced in whole refrigerating circuit, further control the consumption of refrigerant.
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, the first refrigerant ratio A1 of flow direction freezing refrigerating circuit is 80%, and flows to the 3rd refrigerant ratio in refrigeration loop
Example A3 is 20%.If it is 0 DEG C to monitor obtained environment temperature T, it is less than default 10 DEG C of environment temperature threshold value, then control flows to cold
The second refrigerant ratio A2 for freezing refrigerating circuit is default 70%, and flows to the 4th refrigerant ratio in refrigeration loop
A4 is default 30%, can so increase the stroke of piston in linear compressor.
The controlling method for refrigerator of linear compressor, the control method bag are used in second embodiment of the invention introduced below
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, the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if
T is less than or equal to T0, then the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein,
Second refrigerant ratio is less than the first refrigerant ratio, during so that linear compressor being run in the given time, increases straight line pressure
The stroke of contracting machine inner carrier；
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 the linear compressor running status exception, subtract in the refrigerant ratio of current flow direction freezing refrigerating circuit
Small predetermined ratio；
After the linear compressor running status is normal, the refrigerant scale of refrigerating circuit is freezed with current flow direction
Update the value of the second refrigerant ratio.
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 refrigerant ratio of control flow direction freezing refrigerating circuit, if T is more than T0, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, control refrigerant flow direction is cold
The ratio for freezing refrigerating circuit is default second refrigerant ratio, wherein, second refrigerant ratio is less than the first refrigerant ratio,
During so that linear compressor being run in the given time, increase the stroke of linear compressor inner carrier；
Master control borad is additionally operable to monitor linear compressor running status, when the linear compressor running status exception,
Reduce predetermined ratio in the refrigerant ratio of current flow direction freezing refrigerating circuit, when the linear compressor running status is normal
Afterwards, the value of the refrigerant scale renewal second refrigerant ratio of refrigerating circuit is freezed with current flow direction.
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 second refrigerant ratio A2 for controlling flow direction freezing refrigerating circuit is
70%, and it is 30% to flow to the 4th refrigerant ratio A4 in refrigeration loop, increases piston in linear compressor with this
Stroke.Hereafter linear compressor running status is monitored, if linear compressor operation exception, continues to reduce according to reservation ratio 10%
The refrigerant of flow direction freezing refrigerating circuit, then the second refrigerant ratio A2 of flow direction freezing refrigerating circuit is 60%.
Further, after the refrigerant ratio of flow direction freezing refrigerating circuit is reduced to 60%, also may proceed to monitor straight line
Compressor behavior, if linear compressor operation exception, continue to reduce flow direction freezing refrigerating circuit according to reservation ratio 10%
Refrigerant ratio, until linear compressor normal operation.In the present embodiment after linear compressor normal operation, flow direction freezing
The refrigerant ratio of refrigerating circuit is 50%, meanwhile, the preset value of second refrigerant ratio is updated to current flow direction freezing system
The refrigerant ratio 50% of cold loop.Hereafter, if environment temperature be less than 10 DEG C, compressor next time operation when directly control flow to it is cold
The refrigerant ratio for freezing refrigerating circuit is 50%.The control process of the refrigerant ratio of flow direction freezing refrigerating circuit is a dynamic
The process of circulation, without every time from default second refrigerant ratio successively according to pre- when linear compressor starts at low temperature
Certainty ratio reduces.
The controlling method for refrigerator of linear compressor, the control method bag are used in third embodiment of the invention introduced below
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, the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if
T is less than or equal to T0, then the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein,
Second refrigerant ratio is less than the first refrigerant ratio, during so that linear compressor being run in the given time, increases straight line pressure
The stroke of contracting machine inner carrier；
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 running status exception occurs in the linear compressor, in the refrigerant ratio of current flow direction freezing refrigerating circuit
Upper reduction predetermined ratio；
When the linear compressor running status is normal, current flow direction is freezed to the refrigerant ratio setting of refrigerating circuit
For the 5th refrigerant ratio, the 5th refrigerant ratio is associated with the environment temperature T, when environment temperature is less than or equal to
During T, with the flow direction of the 5th refrigerant ratio control system cryogen.
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 refrigerant ratio of control flow direction freezing refrigerating circuit, if T is more than T0, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, control refrigerant flow direction is cold
The ratio for freezing refrigerating circuit is default second refrigerant ratio, wherein, second refrigerant ratio is less than the first refrigerant ratio,
During so that linear compressor being run in the given time, increase the stroke of linear compressor inner carrier；
Master control borad is additionally operable to monitor linear compressor running status, when running status exception occurs in the linear compressor
When, reduce predetermined ratio in the refrigerant ratio of current flow direction freezing refrigerating circuit, when the linear compressor running status
When normal, the refrigerant ratio setting that current flow direction is freezed into refrigerating circuit is the 5th refrigerant ratio, by the described 5th refrigeration
Agent ratio associates with the environment temperature T, when environment temperature is less than or equal to T, with the 5th refrigerant ratio control system cryogen
Flow direction.
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 second refrigerant ratio A2 for controlling flow direction freezing refrigerating circuit is
70%, and it is 30% to flow to the 4th refrigerant ratio A4 in refrigeration loop, increases piston in linear compressor with this
Stroke.Hereafter linear compressor running status is monitored, if linear compressor operation exception, continues to reduce according to reservation ratio 10%
The refrigerant of flow direction freezing refrigerating circuit, then the refrigerant ratio of flow direction freezing refrigerating circuit is 60%.
Further, after the refrigerant ratio of flow direction freezing refrigerating circuit is reduced to 60%, also may proceed to monitor straight line
Compressor behavior, if linear compressor operation exception, continue to reduce flow direction freezing refrigerating circuit according to reservation ratio 10%
Refrigerant ratio, until linear compressor normal operation.In the present embodiment after linear compressor normal operation, flow direction freezing
The refrigerant ratio of refrigerating circuit is 50%, and the refrigerant ratio setting that current flow direction is freezed into refrigerating circuit is the 5th refrigerant
Ratio A5, and current environmental temperature T and the 5th refrigerant ratio A5 are associated.
Specifically, the 5th refrigerant ratio 50% is set to refrigerator and is less than or equal to current environmental temperature 0 in environment temperature
DEG C when refrigerant allocation proportion initial value.Hereafter, if monitor environment temperature be less than 0 DEG C, compressor next time operation when it is direct
The refrigerant ratio for controlling flow direction freezing refrigerating circuit is 50%.If monitoring, environment temperature between 0 DEG C~10 DEG C, is still pressed
The refrigerant ratio for freezing refrigerating circuit to flow direction according to the method in second embodiment is controlled.
The control process of the refrigerant ratio of flow direction freezing refrigerating circuit is the process of a dynamic circulation in the present embodiment,
Without reducing successively according to predetermined ratio from default refrigerant ratio every time when linear compressor starts at low temperature.
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 change of refrigerating capacity needed for refrigerator can be caused, and then the ratio of refrigerant is had an impact.
As can be seen from the above technical solutions, the present invention flows to the refrigerant ratio of freezing refrigerating circuit by reducing, with
Increase the stroke of linear compressor inner carrier, avoid linear compressor and protected by frequency conversion board and cause refrigerator can not normal work
Make.
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 (8)
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, the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default first refrigerant ratio, if T is small
In or equal to T0, then the ratio for controlling refrigerant flow direction freezing refrigerating circuit is default second refrigerant ratio, wherein, it is described
Second refrigerant ratio is less than the first refrigerant ratio, during so that the linear compressor being run in the given time, increases institute
State the stroke of linear compressor inner carrier.
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：
If T is more than T0, the ratio for controlling refrigerant flow direction refrigeration loop is default 3rd refrigerant ratio, if T is small
In or equal to T0, then the ratio for controlling refrigerant flow direction refrigeration loop is default 4th refrigerant ratio, wherein, it is described
4th refrigerant ratio is more than the 3rd refrigerant ratio, and the difference of the first refrigerant ratio and second refrigerant ratio with
The difference of 4th refrigerant ratio and the 3rd refrigerant ratio is equal.
3. 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, reduce in the refrigerant ratio of current flow direction freezing refrigerating circuit pre-
Certainty ratio；
After the linear compressor running status is normal, the refrigerant scale that refrigerating circuit is freezed with current flow direction updates
The value of the second refrigerant ratio.
4. the controlling method for refrigerator of linear compressor is used as claimed in claim 3, 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.
5. 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 is additionally operable to the refrigerant ratio of control flow direction freezing refrigerating circuit, if T is more than T0, controls cold-producing medium stream
Ratio to freezing refrigerating circuit is default first refrigerant ratio, if T is less than or equal to T0, control refrigerant flow direction is cold
The ratio for freezing refrigerating circuit is default second refrigerant ratio, wherein, the second refrigerant ratio is less than the first refrigerant
Ratio, during so that the linear compressor being run in the given time, increase the stroke of the linear compressor inner carrier.
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
The refrigerant ratio in refrigeration loop is flowed in control, if T is more than T0, the ratio in control refrigerant flow direction refrigeration loop
Example is default 3rd refrigerant ratio, if T is less than or equal to T0, the ratio for controlling refrigerant flow direction refrigeration loop is
Default 4th refrigerant ratio, wherein, the 4th refrigerant ratio is more than the 3rd refrigerant ratio, and first refrigeration
The difference of agent ratio and second refrigerant ratio is equal with the difference of the 4th refrigerant ratio and the 3rd refrigerant ratio.
7. 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
In monitoring the linear compressor running status, when the linear compressor running status exception, in current flow direction freezing system
Reduce predetermined ratio in the refrigerant ratio of cold loop, it is cold currently to flow to after the linear compressor running status is normal
The refrigerant scale for freezing refrigerating circuit updates the value of the second refrigerant ratio.
8. the refrigerator control system of linear compressor is used as claimed in claim 7, 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.
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| CN201510749926.5A CN105241174B (en) | 2015-11-05 | 2015-11-05 | Using the controlling method for refrigerator and control system of linear compressor |
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| CN201510749926.5A CN105241174B (en) | 2015-11-05 | 2015-11-05 | Using the controlling method for refrigerator and control system of linear compressor |
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| CN105241174B true CN105241174B (en) | 2018-02-02 |
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| CN112964003B (en) * | 2021-01-23 | 2022-11-01 | 上海朗旦科技集团有限公司 | Control method of refrigerator using micro moving-magnet type series two-stage linear compressor |
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