CN105241171A - Refrigerator control method and system employing linear compressor - Google Patents
Refrigerator control method and system employing linear compressor Download PDFInfo
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- CN105241171A CN105241171A CN201510746669.XA CN201510746669A CN105241171A CN 105241171 A CN105241171 A CN 105241171A CN 201510746669 A CN201510746669 A CN 201510746669A CN 105241171 A CN105241171 A CN 105241171A
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Abstract
The invention discloses a refrigerator control method and system employing a linear compressor. The control method comprises the following steps: monitoring an environmental temperature T of a refrigerator; comparing the environmental temperature T with a preset environmental temperature threshold T0; if T is greater than T0, controlling a rotating speed of a refrigeration fan to be a first rotating speed when the linear compressor runs within predetermined time, and if T is smaller than or equal to T0, controlling the rotating speed of the refrigeration fan to be a second rotating speed when the linear compressor runs within the predetermined time, wherein the second rotating speed is greater than the first rotating speed. According to the control method, the rotating speed of the refrigeration fan in the refrigerator is controlled to be increased or reduced so that the travel of a piston in the linear compressor can be increased and a failure in normal working of the refrigerator due to that the linear compressor is protected by a frequency inverting plate can be avoided.
Description
Technical field
The present invention relates to refrigerator and linear compressor technical field, particularly relate to a kind of controlling method for refrigerator and the control system that adopt linear compressor.
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 sucks the refrigerant gas of low-temp low-pressure from air intake duct, after driving piston to compress it by motor rotation, the refrigerant gas of HTHP is discharged to blast pipe, for kind of refrigeration cycle provides power, thus realize the kind of refrigeration cycle of compression → condensation (heat release) → expand → evaporate (heat absorption).
Linear compressor is widely used in the little refrigerating capacity fields such as refrigerator, its structure is simple, frictional dissipation is few, noise is low, can conveniently by regulation voltage adjust flux, more simple and reliable than variable frequency adjustment, few oil or oil-free lubrication wet goods advantage can be realized.Chinese patent as CN203394701U discloses a kind of linear compressor, shown in composition graphs 1, it comprises exhaust gear 1 and compressor assembly two part, compressor assembly comprises cylinder 16, piston component, moving-magnetic linear vibration motor, resonant springs 8, compressor case, and piston component comprises piston 2, piston rod 3, rod end plate 10 and inlet valve 15; Exhaust gear 1 comprises exhaust valve plate 17, exhaust valve plate 18 etc.
Be Electronic Control in the linear compressor course of work, when power output hour, linear compressor piston 2 stroke is less, and the situation that very easily generation piston 2 and exhaust valve plate 18 bump against causes compressor failure.For this reason, during the design of linear compressor frequency conversion plate, can arrange defence program, prevent compressor mechanical part impaired, such as, linear compressor frequency conversion plate can starting protection program allow linear compressor quit work.
When refrigerator works at low temperatures, the thermic load of refrigerator is lower, and the refrigerating capacity that a room needs also can be relatively low, and now, linear compressor can run with lower power output, causes the stroke of linear compressor piston little, there is the hidden danger of clashing into exhaust valve plate.
Summary of the invention
For the deficiencies in the prior art, the technical problem that the present invention solves is to provide a kind of controlling method for refrigerator and the control system that adopt linear compressor.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
Adopt a controlling method for refrigerator for linear compressor, described control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Described environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, be the first rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, described second rotating speed is greater than described first rotating speed.
As a further improvement on the present invention, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After described linear compressor running status is normal, upgrade the value of described second rotating speed with the size of current freezing rotation speed of fan.
As a further improvement on the present invention, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After described linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, is associated by described 3rd rotating speed with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
As a further improvement on the present invention, monitor described linear compressor running status specifically to comprise:
Whether surprisingly stop when judging that described linear compressor runs in the given time;
If so, then think that described linear compressor running status is for abnormal.
Correspondingly, a kind of refrigerator control system adopting linear compressor, the master control borad that described control system comprises device for detecting temperature and is connected with described device for detecting temperature, wherein,
Described device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Described master control borad is used for described environment temperature T to compare with default environment temperature threshold value T0;
Described master control borad is also for the rotating speed of freezing blower fan, if T is greater than T0, be the first rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, described second rotating speed is greater than described first rotating speed.
As a further improvement on the present invention, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after described linear compressor running status is normal, upgrade the value of described second rotating speed with the size of current freezing rotation speed of fan.
As a further improvement on the present invention, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after described linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, described 3rd rotating speed is associated with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
As a further improvement on the present invention, whether surprisingly stopping when described master control borad is also for judging that described linear compressor runs in the given time, if so, then thinking that described linear compressor running status is for abnormal.
Another technical scheme of the present invention is achieved in that
Adopt a controlling method for refrigerator for linear compressor, described control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Described environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, described 5th rotating speed is less than described 4th rotating speed.
As a further improvement on the present invention, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After described linear compressor running status is normal, upgrade the value of described 5th rotating speed with the size of current cooling blower rotating speed.
As a further improvement on the present invention, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After described linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, is associated by described 6th rotating speed with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
As a further improvement on the present invention, monitor described linear compressor running status specifically to comprise:
Whether surprisingly stop when judging that described linear compressor runs in the given time;
If so, then think that described linear compressor running status is for abnormal.
Correspondingly, a kind of refrigerator control system adopting linear compressor, the master control borad that described control system comprises device for detecting temperature and is connected with described device for detecting temperature, wherein,
Described device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Described master control borad is used for described environment temperature T to compare with default environment temperature threshold value T0;
Described master control borad is also for the rotating speed of controlled cooling model blower fan, if T is greater than T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, described 5th rotating speed is less than described 4th rotating speed.
As a further improvement on the present invention, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after described linear compressor running status is normal, upgrade the value of described 5th rotating speed with the size of current cooling blower rotating speed.
As a further improvement on the present invention, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after described linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, described 6th rotating speed is associated with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
As a further improvement on the present invention, whether surprisingly stopping when described master control borad is also for judging that described linear compressor runs in the given time, if so, then thinking that described linear compressor running status is for abnormal.
The invention has the beneficial effects as follows:
The present invention, by controlling the rotating speed of the freezing blower fan of increase in refrigerator or reducing the rotating speed of cooling blower, to increase the stroke of linear compressor inner carrier, avoids linear compressor and is protected by frequency conversion plate and cause refrigerator normally to work.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art cathetus compressor.
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.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.The example of these preferred embodiments illustrates in the accompanying drawings.Shown in accompanying drawing and the embodiments of the present invention described with reference to the accompanying drawings be only exemplary, and the present invention is not limited to these embodiments.
At this, also it should be noted that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only closely-related structure and/or treatment step with the solution of the present invention in the accompanying drawings, and eliminate other details little with relation of the present invention.
In addition, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Shown in ginseng Fig. 2, introduce in first embodiment of the invention the controlling method for refrigerator adopting linear compressor, the refrigerator in present embodiment is wind cooling refrigerator, and it is provided with the freezing blower fan for carrying out heat exchange between refrigerating chamber and refrigerating chamber, and this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, being the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, is the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed.
Correspondingly, shown in ginseng Fig. 3, also disclose a kind of refrigerator control system adopting linear compressor in present embodiment, it master control borad 200 comprising temperature-detecting device 100 and be connected with device for detecting temperature, wherein:
Device for detecting temperature 100 is for monitoring the environment temperature T residing for refrigerator;
Master control borad 200 is for comparing environment temperature T with default environment temperature threshold value T0;
Master control borad 200 is also for controlling the rotating speed of freezing blower fan, if T is greater than T0, be the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed.
Preferably, the environment temperature T in present embodiment is obtained by temperature sensor, and temperature sensor is arranged on refrigerator body, certainly can also be obtained, as thermometer etc. by other temperature-detecting device except temperature sensor.
The invention belongs to refrigerator control method at low temperatures, and default environment temperature threshold value T0 is the threshold value for defining " low temperature " in the present invention, environment temperature threshold value T0 as default in this can be set to 10 DEG C, then the situation of environment temperature T≤10 DEG C all belongs to the category of low temperature, certain 10 DEG C are only the preferred environment temperature threshold value of the present invention one, also other temperature values can be set in other embodiments, as 5 DEG C, 0 DEG C etc., when this default environment temperature threshold value T0 is set to other temperature, the definition of corresponding " low temperature " is then different.
General refrigerator is when low temperature (environment temperature is less than or equal to default environment temperature threshold value) works, the thermic load of refrigerator is lower, between room need refrigerating capacity also can be relatively low, now, linear compressor can run with lower power output, cause the stroke of linear compressor piston little, piston has the risk impinged upon on exhaust valve plate, causes mechanical part to destroy.Existing linear compressor frequency conversion plate generally can arrange frequency conversion defence program, open frequency conversion protection, thus refrigerator quits work when piston slap exhaust valve plate.For avoiding linear compressor to be protected by frequency conversion plate, refrigerator, when low-temperature working, needs the operating condition of forcibly changing refrigerator.
In present embodiment, if T is greater than T0, the rotating speed then controlling freezing blower fan is the first rotating speed, if T is less than or equal to T0, the rotating speed then controlling freezing blower fan is the second rotating speed, wherein, second rotating speed is greater than the first rotating speed, with the heat exchange of the refrigerating chamber and refrigerating chamber that speed refrigerator, more refrigerating capacity need be provided when linear compressor is run in the given time, the refrigerating capacity of linear compressor is relevant to the stroke of internal piston, the stroke of piston is larger, piston work within the unit interval is more, therefore just more refrigerating capacity can be improved, therefore, the rotating speed increasing freezing blower fan can increase the stroke of linear compressor inner carrier.
When environment temperature T is lower than default environment temperature threshold value T0, the thermic load of refrigerator is lower, and the refrigerating capacity that a room needs also can be relatively low.When refrigerating capacity is specified, if refrigerating circuit is still freezed according to normal condition, linear compressor piston stroke reduces.Refrigerator in present embodiment is air-cooled single system refrigerator; it is by increasing the rotating speed of the freezing blower fan for carrying out refrigerating chamber and refrigerating chamber heat exchange; when linear compressor is run in the given time; increase the stroke of linear compressor inner carrier; just avoid the shock between piston and exhaust valve plate; frequency conversion plate can not open frequency conversion defence program, and refrigerator can normally run.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, when environment temperature T is higher than 10 DEG C, linear compressor operationally, the rotating speed of freezing blower fan is the first rotating speed 2000r/min, when monitoring environment temperature T and being less than or equal to T0, if environment temperature is 0 DEG C, then when linear compressor runs, the rotating speed controlling freezing blower fan is the second rotating speed 2200r/min.So, the heat exchange of refrigerating chamber and refrigerating chamber can be accelerated, namely increase the refrigerating capacity in the unit interval needed for refrigerator, in linear compressor piston stroke can increase.
Below introduce in second embodiment of the invention the controlling method for refrigerator adopting linear compressor, the refrigerator in present embodiment is wind cooling refrigerator, and it is provided with the freezing blower fan for carrying out heat exchange between refrigerating chamber and refrigerating chamber, and this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, being the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, is the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed;
Above-mentioned steps is identical with the first embodiment, further, shown in ginseng Fig. 4, also comprises in present embodiment:
Monitoring linear compressor running status;
When linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After linear compressor running status is normal, upgrade the value of the second rotating speed with the size of current freezing rotation speed of fan.
Monitoring linear compressor running status specifically comprises:
Whether surprisingly stop when judging that linear compressor runs in the given time;
If so, then think that linear compressor running status is for abnormal.
Correspondingly, in present embodiment, also disclose a kind of refrigerator control system adopting linear compressor, it master control borad comprising temperature-detecting device and be connected with device for detecting temperature, wherein:
Device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Master control borad is used for environment temperature T to compare with default environment temperature threshold value T0;
Master control borad is also for controlling the rotating speed of freezing blower fan, if T is greater than T0, be the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed;
Master control borad is also for monitoring linear compressor running status, when linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after linear compressor running status is normal, upgrades the value of the second rotating speed with the size of current freezing rotation speed of fan.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, and monitoring the environment temperature T obtained is 0 DEG C, and it is lower than default environment temperature threshold value 10 DEG C, the rotating speed controlling freezing blower fan is 2200r/min, increases the stroke of piston in linear compressor with this.After this monitor linear compressor running status, if linear compressor operation exception, increase the rotating speed of freezing blower fan according to subscribing amplitude 100r/min continuation, then the rotating speed of freezing blower fan is increased to 2300r/min.
Further, after the rotating speed of freezing blower fan is increased to 2300r/min, also can continue monitoring linear compressor running status, if linear compressor operation exception, continue according to reservation amplitude 100r/min and increase the rotating speed of freezing blower fan, until linear compressor normal operation.In the present embodiment after linear compressor normal operation, the rotating speed of freezing blower fan is 2500r/min, meanwhile, the preset value of the second rotating speed is updated to the rotating speed 2500r/min of current freezing blower fan.After this, if environment temperature is lower than 10 DEG C, the rotating speed directly controlling freezing blower fan when linear compressor runs in the given time is 2500r/min.The rotating speed control procedure of freezing blower fan is the process of a dynamic circulation, and when linear compressor starts at low temperatures, freezing blower fan all increases from the first rotating speed preset according to predetermined amplitude without the need to each.
Below introduce in third embodiment of the invention the controlling method for refrigerator adopting linear compressor, the refrigerator in present embodiment is wind cooling refrigerator, and it is provided with the freezing blower fan for carrying out heat exchange between refrigerating chamber and refrigerating chamber, and this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, being the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, is the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed;
Above-mentioned steps is identical with the first embodiment, further, shown in ginseng Fig. 5, also comprises in present embodiment:
Monitoring linear compressor running status;
When linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, is associated by the 3rd rotating speed with environment temperature T, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
Monitoring linear compressor running status specifically comprises:
Whether surprisingly stop when judging that linear compressor runs in the given time;
If so, then think that linear compressor running status is for abnormal.
Correspondingly, in present embodiment, also disclose a kind of refrigerator control system adopting linear compressor, it master control borad comprising temperature-detecting device and be connected with device for detecting temperature, wherein:
Device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Master control borad is used for environment temperature T to compare with default environment temperature threshold value T0;
Master control borad is also for controlling the rotating speed of freezing blower fan, if T is greater than T0, be the first rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, the second rotating speed is greater than the first rotating speed;
Master control borad is also for monitoring linear compressor running status, when linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, associated with environment temperature T by 3rd rotating speed, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, and monitoring the environment temperature T obtained is 0 DEG C, and it is lower than default environment temperature threshold value 10 DEG C, the rotating speed controlling freezing blower fan is 2200r/min, increases the stroke of piston in linear compressor with this.After this monitor linear compressor running status, if linear compressor operation exception, increase the rotating speed of freezing blower fan according to subscribing amplitude 100r/min continuation, then the rotating speed of freezing blower fan is increased to 2300r/min.
Further, after the rotating speed of freezing blower fan is increased to 2300r/min, also can continue monitoring linear compressor running status, if linear compressor operation exception, continue according to reservation amplitude 100r/min and increase the rotating speed of freezing blower fan, until linear compressor normal operation, and the rotating speed of current freezing blower fan is associated with current environmental temperature.
Particularly, in the present embodiment after linear compressor normal operation, the rotating speed of freezing blower fan is 2500r/min, the rotating speed 2500r/min of current freezing blower fan is set to the 3rd rotating speed of freezing blower fan, and the 3rd rotating speed 2500r/min is associated with current environment temperature 0 DEG C, refrigerator is in upper once running, if monitor environment temperature when being less than or equal to 0 DEG C, the rotating speed directly controlling freezing blower fan is the 3rd rotating speed 2500r/min.If monitor environment temperature between 0 DEG C ~ 10 DEG C, still control according to the rotating speed of the method in the second embodiment to freezing blower fan.
In the present embodiment, the control procedure of freezing rotation speed of fan is the process of a dynamic circulation, and when refrigerator starts at low temperatures, cooling blower all increases according to predetermined amplitude from the rotating speed preset successively without the need to each.
Shown in ginseng Fig. 6, introduce in four embodiment of the invention the controlling method for refrigerator adopting linear compressor, refrigerator in present embodiment is wind cooling refrigerator or direct cooling refrigerator, refrigerating circuit comprises evaporimeter, condenser etc., be provided with the cooling blower for dispelling the heat to condenser at condenser side, this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed.
Correspondingly, in present embodiment, also disclose a kind of refrigerator control system adopting linear compressor, it master control borad comprising temperature-detecting device and be connected with device for detecting temperature, wherein:
Device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Master control borad is used for environment temperature T to compare with default environment temperature threshold value T0;
Master control borad is also for the rotating speed of controlled cooling model blower fan, if T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed.
General refrigerator is when low temperature (environment temperature is less than or equal to default environment temperature threshold value) works, the thermic load of refrigerator is lower, between room need refrigerating capacity also can be relatively low, now, linear compressor can run with lower power output, cause the stroke of linear compressor piston little, piston has the risk impinged upon on exhaust valve plate, causes mechanical part to destroy.Existing linear compressor frequency conversion plate generally can arrange frequency conversion defence program, open frequency conversion protection, thus refrigerator quits work when piston slap exhaust valve plate.For avoiding linear compressor to be protected by frequency conversion plate, refrigerator, when low-temperature working, needs the operating condition of forcibly changing refrigerator.
In present embodiment, if T is greater than T0, then the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, then the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, 5th rotating speed is less than the 4th rotating speed, with the radiating rate of the condenser that slows down, and the refrigerating capacity under certain conditions needed for refrigerator is specified, the refrigerating capacity that linear compressor can be caused to provide within the unit interval after the rotating speed reduction of cooling blower reduces, in order to maintain specified refrigerating capacity, piston acting in linear compressor needs to increase, and namely the stroke of piston needs to increase.Therefore, the rotating speed reducing cooling blower can increase the stroke of linear compressor inner carrier.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, when environment temperature T is higher than 10 DEG C, linear compressor operationally, the rotating speed of cooling blower is the 4th rotating speed 3000r/min, when monitoring environment temperature T and being less than or equal to T0, if environment temperature is 0 DEG C, then when linear compressor runs, the rotating speed of controlled cooling model blower fan is the 5th rotating speed 2800r/min.So, the heat radiation of the condenser that can slow down, in order to obtain identical refrigerating capacity within the unit interval, in linear compressor piston stroke can increase.
Below introduce in fifth embodiment of the invention the controlling method for refrigerator adopting linear compressor, refrigerator in present embodiment is wind cooling refrigerator or direct cooling refrigerator, refrigerating circuit comprises evaporimeter, condenser etc., be provided with the cooling blower for dispelling the heat to condenser at condenser side, this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed;
Above-mentioned steps is identical with the 4th embodiment, further, shown in ginseng Fig. 7, also comprises in present embodiment:
Monitoring linear compressor running status;
When linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After linear compressor running status is normal, upgrade the value of the 5th rotating speed with the size of current cooling blower rotating speed.
Monitoring linear compressor running status specifically comprises:
Whether surprisingly stop when judging that linear compressor runs in the given time;
If so, then think that linear compressor running status is for abnormal.
Correspondingly, in present embodiment, also disclose a kind of refrigerator control system adopting linear compressor, it master control borad comprising temperature-detecting device and be connected with device for detecting temperature, wherein:
Device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Master control borad is used for environment temperature T to compare with default environment temperature threshold value T0;
Master control borad is also for the rotating speed of controlled cooling model blower fan, if T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed;
Master control borad is also for monitoring linear compressor running status, when linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after linear compressor running status is normal, upgrades the value of the 5th rotating speed with the size of current cooling blower rotating speed.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, and monitoring the environment temperature T obtained is 0 DEG C, and it is lower than default environment temperature threshold value 10 DEG C, the rotating speed of controlled cooling model blower fan is 2800r/min, increases the stroke of piston in linear compressor with this.After this monitor linear compressor running status, if linear compressor operation exception, according to the rotating speed subscribing amplitude 100r/min continuation reduction cooling blower, then the rotating speed of cooling blower is increased to 2700r/min.
Further, after the rotating speed of cooling blower is reduced to 2700r/min, also can continue monitoring linear compressor running status, if linear compressor operation exception, continue according to reservation amplitude 100r/min and reduce the rotating speed of cooling blower, until linear compressor 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 the 5th rotating speed is updated to the rotating speed 2500r/min of current cooling blower.After this, if environment temperature is lower than 10 DEG C, when linear compressor runs in the given time, the rotating speed of direct controlled cooling model blower fan is 2500r/min.The rotating speed control procedure of cooling blower is the process of a dynamic circulation, and when linear compressor starts at low temperatures, cooling blower all reduces from the 4th rotating speed preset according to predetermined amplitude without the need to each.
Below introduce in sixth embodiment of the invention the controlling method for refrigerator adopting linear compressor, refrigerator in present embodiment is wind cooling refrigerator or direct cooling refrigerator, refrigerating circuit comprises evaporimeter, condenser etc., be provided with the cooling blower for dispelling the heat to condenser at condenser side, this control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed;
Above-mentioned steps is identical with the 4th embodiment, further, shown in ginseng Fig. 8, also comprises in present embodiment:
Monitoring linear compressor running status;
When linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, is associated by the 6th rotating speed with environment temperature T, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
Monitoring linear compressor running status specifically comprises:
Whether surprisingly stop when judging that linear compressor runs in the given time;
If so, then think that linear compressor running status is for abnormal.
Correspondingly, in present embodiment, also disclose a kind of refrigerator control system adopting linear compressor, it master control borad comprising temperature-detecting device and be connected with device for detecting temperature, wherein:
Device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Master control borad is used for environment temperature T to compare with default environment temperature threshold value T0;
Master control borad is also for the rotating speed of controlled cooling model blower fan, if T is greater than T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, the 5th rotating speed is less than the 4th rotating speed;
Master control borad is also for monitoring linear compressor running status, when linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, associated with environment temperature T by 6th rotating speed, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
In a specific embodiment of the present invention, presetting environment temperature threshold value T0 is 10 DEG C, and monitoring the environment temperature T obtained is 0 DEG C, and it is lower than default environment temperature threshold value 10 DEG C, the rotating speed of controlled cooling model blower fan is 2800r/min, increases the stroke of piston in linear compressor with this.After this monitor linear compressor running status, if linear compressor operation exception, according to the rotating speed subscribing amplitude 100r/min continuation reduction 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 can continue monitoring linear compressor running status, if linear compressor operation exception, continue according to reservation amplitude 100r/min and reduce the rotating speed of cooling blower, until linear compressor normal operation, and the rotating speed of current cooling blower is associated with current environmental temperature.
Particularly, in the present embodiment after linear compressor normal operation, the rotating speed of cooling blower is 2500r/min, the rotating speed 2500r/min of current cooling blower is set to the 6th rotating speed of cooling blower, and the 6th rotating speed 2500r/min is associated with current environment temperature 0 DEG C, refrigerator is in upper once running, if monitor environment temperature when being less than or equal to 0 DEG C, the rotating speed of direct controlled cooling model blower fan is the 6th rotating speed 2500r/min.If monitor environment temperature between 0 DEG C ~ 10 DEG C, still control according to the rotating speed of method to cooling blower in the 5th embodiment.
In the present embodiment, the control procedure of cooling blower rotating speed is the process of a dynamic circulation, and when refrigerator starts at low temperatures, cooling blower all reduces according to predetermined amplitude from the rotating speed preset successively without the need to each.
It should be noted that " scheduled time " defined in the present invention remains unchanged, namely linear compressor remains unchanged the running time in different cycles, and can change in the heating parameters of " scheduled time " inner heating device.
Further, the each embodiment of the present invention is all be described when refrigerator load is constant, do not consider that outer goods puts into the situation that refrigerator causes refrigerator variations in temperature, during as put into high temperature food etc. in refrigerator running in refrigerator, the situation that the refrigerating capacity that refrigerator can be caused to need increases.
As can be seen from the above technical solutions; the present invention is by controlling the rotating speed of the freezing blower fan of increase in refrigerator or reducing the rotating speed of cooling blower; to increase the stroke of linear compressor inner carrier, avoid linear compressor and protected by frequency conversion plate and cause refrigerator normally to work.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only the illustrating of feasibility embodiment for the application; they are also not used to the protection domain limiting the application, and the equivalent implementations that all the application's of disengaging skill spirit is done or change all should be included within the protection domain of the application.
Claims (16)
1. adopt a controlling method for refrigerator for linear compressor, it is characterized in that, described control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Described environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, be the first rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, described second rotating speed is greater than described first rotating speed.
2. the controlling method for refrigerator adopting linear compressor as claimed in claim 1, it is characterized in that, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After described linear compressor running status is normal, upgrade the value of described second rotating speed with the size of current freezing rotation speed of fan.
3. the controlling method for refrigerator adopting linear compressor as claimed in claim 1, it is characterized in that, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude;
After described linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, is associated by described 3rd rotating speed with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
4. adopt the controlling method for refrigerator of linear compressor as claimed in claim 2 or claim 3, it is characterized in that, monitor described linear compressor running status and specifically comprise:
Whether surprisingly stop when judging that described linear compressor runs in the given time;
If so, then think that described linear compressor running status is for abnormal.
5. adopt a refrigerator control system for linear compressor, it is characterized in that, the master control borad that described control system comprises device for detecting temperature and is connected with described device for detecting temperature, wherein,
Described device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Described master control borad is used for described environment temperature T to compare with default environment temperature threshold value T0;
Described master control borad is also for the rotating speed of freezing blower fan, if T is greater than T0, be the first rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, if T is less than or equal to T0, be the second rotating speed when described linear compressor runs the rotating speed that time control refrigeration freezes blower fan in the given time, wherein, described second rotating speed is greater than described first rotating speed.
6. the refrigerator control system adopting linear compressor as claimed in claim 5, it is characterized in that, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after described linear compressor running status is normal, upgrade the value of described second rotating speed with the size of current freezing rotation speed of fan.
7. the refrigerator control system adopting linear compressor as claimed in claim 5, it is characterized in that, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current freezing rotation speed of fan increases predetermined amplitude, after described linear compressor running status is normal, current freezing rotation speed of fan is set to the 3rd rotating speed, described 3rd rotating speed is associated with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed controlling freezing blower fan is the 3rd rotating speed.
8. the refrigerator control system of employing linear compressor as claimed in claims 6 or 7, it is characterized in that, whether surprisingly stopping when described master control borad is also for judging that described linear compressor runs in the given time, if so, then thinking that described linear compressor running status is for abnormal.
9. adopt a controlling method for refrigerator for linear compressor, it is characterized in that, described control method comprises:
The environment temperature T of monitoring residing for refrigerator;
Described environment temperature T is compared with default environment temperature threshold value T0;
If T is greater than T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, described 5th rotating speed is less than described 4th rotating speed.
10. the controlling method for refrigerator adopting linear compressor as claimed in claim 9, it is characterized in that, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After described linear compressor running status is normal, upgrade the value of described 5th rotating speed with the size of current cooling blower rotating speed.
11. controlling method for refrigerator adopting linear compressor as claimed in claim 9, it is characterized in that, described method also comprises:
Monitor described linear compressor running status;
When described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude;
After described linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, is associated by described 6th rotating speed with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
The controlling method for refrigerator of 12. employing linear compressors as described in claim 10 or 11, is characterized in that, monitor described linear compressor running status and specifically comprise:
Whether surprisingly stop when judging that described linear compressor runs in the given time;
If so, then think that described linear compressor running status is for abnormal.
13. 1 kinds of refrigerator control systems adopting linear compressor, is characterized in that, the master control borad that described control system comprises device for detecting temperature and is connected with described device for detecting temperature, wherein,
Described device for detecting temperature is for monitoring the environment temperature T residing for refrigerator;
Described master control borad is used for described environment temperature T to compare with default environment temperature threshold value T0;
Described master control borad is also for the rotating speed of controlled cooling model blower fan, if T is greater than T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 4th rotating speed, if T is less than or equal to T0, when described linear compressor runs in the given time, the rotating speed of controlled cooling model blower fan is the 5th rotating speed, wherein, described 5th rotating speed is less than described 4th rotating speed.
14. refrigerator control systems adopting linear compressor as claimed in claim 13, it is characterized in that, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after described linear compressor running status is normal, upgrade the value of described 5th rotating speed with the size of current cooling blower rotating speed.
15. refrigerator control systems adopting linear compressor as claimed in claim 13, it is characterized in that, described master control borad is also for monitoring described linear compressor running status, when described linear compressor running status is abnormal, current cooling blower rotating speed reduces predetermined amplitude, after described linear compressor running status is normal, current cooling blower rotating speed is set to the 6th rotating speed, described 6th rotating speed is associated with described environment temperature T, when environment temperature is less than or equal to T, the rotating speed of controlled cooling model blower fan is the 6th rotating speed.
The refrigerator control system of 16. employing linear compressors as described in claims 14 or 15, it is characterized in that, whether surprisingly stopping when described master control borad is also for judging that described linear compressor runs in the given time, if so, then thinking that described linear compressor running status is for abnormal.
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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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