CN115096041A - Method for controlling starting operation of compressor of inverter refrigerator - Google Patents
Method for controlling starting operation of compressor of inverter refrigerator Download PDFInfo
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- CN115096041A CN115096041A CN202210747328.4A CN202210747328A CN115096041A CN 115096041 A CN115096041 A CN 115096041A CN 202210747328 A CN202210747328 A CN 202210747328A CN 115096041 A CN115096041 A CN 115096041A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008014 freezing Effects 0.000 claims abstract description 55
- 238000007710 freezing Methods 0.000 claims abstract description 55
- 238000005057 refrigeration Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a method for controlling the starting operation of a compressor of a variable frequency refrigerator, which comprises the following specific steps: powering on the refrigerator for operation; judging which ring temperature section the current ring temperature Te (X) belongs to, judging whether the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber or not, and meeting the condition that the shutdown time of the compressor is greater than 10 min; judging which temperature section the current environment temperature Te (X) belongs to, and judging whether the current compressor uses Rc (X) as the target rotating speed Rc (N) of the compressor corresponding to the temperature section; after the refrigeration system load determination process is completed, the process returns to step three, and it is determined again whether rc (x) of the compressor currently is the target compressor rotation speed rc (n) corresponding to the cycle temperature section, and the cycle is repeated until the target compressor rotation speed rc (n) of the cycle temperature te (x) is reached (that is, rc (x) is rc (n)), and the operation is continued until the refrigerator compartment satisfies the shutdown temperature, and the compressor is stopped. The invention shortens the development cycle of the variable frequency refrigerator, improves the utilization rate of the test chamber, and reduces the energy consumption caused by the long-time operation of the test equipment, thereby achieving the effects of energy conservation and emission reduction.
Description
The technical field is as follows:
the invention relates to a method for controlling the starting operation of a compressor of a variable frequency refrigerator, and belongs to the technical field of household appliances.
Background art:
compared with the traditional fixed-frequency compressor, the variable-frequency compressor is more energy-saving and quieter because the variable-frequency compressor can change corresponding rotating speed according to different loads so as to change corresponding refrigerating capacity. In the development process of the frequency conversion refrigerator, the refrigerating capacity at the corresponding rotating speed needs to be adjusted according to different environmental temperatures and different loads so as to maintain the corresponding dynamic balance of the system. In the development process, different noise resonance points are reasonably avoided according to different loads, so that the rotating speed of the compressor needs to be adjusted. According to the starting rotating speed of different environment temperature compressors, the pressure of a refrigerating system is unstable during starting, and the starting is accompanied by larger noise and vibration, so that the user is provided with poorer experience. The prior art scheme is that the operation is completely linearly pulled up from the initial starting rotating speed to the target rotating speed, the pressure balance adjustment of a refrigerating system is lacked, and resonance vibration is easily generated with a certain frequency section of a box body in the speed increasing process of a compressor, so that the noise is increased. When the temperature is higher, the whole load of refrigerator is big this moment, and the compressor avoids directly starting with higher rotational speed, can produce heavy current in the twinkling of an eye, and is great to the electric current impact of main control board to bring great start-up consumption, thereby lead to the whole power consumption increase of refrigerator.
In the refrigerator development process, the compressor needs to be adjusted according to different loads to adjust the working conditions of different corresponding compressor rotating speeds, and the compressor is adjusted in a starting mode for multiple times, so that starting jitter and noise can be avoided, the development period is finally prolonged, the utilization rate of experimental testing resources is low, and the energy consumption of a laboratory is large.
Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.
The invention content is as follows:
the invention provides a control method for starting and running a compressor of an inverter refrigerator in order to solve the problems in the prior art, which reduces the noise and power consumption loss caused by starting the inverter compressor according to different system loads and improves the user feeling; the development period of the variable frequency refrigerator is shortened, the utilization rate of the test chamber is improved, and the energy consumption caused by long-time operation of test equipment is reduced, so that the effects of energy conservation and emission reduction are achieved.
The technical scheme adopted by the invention is as follows: a control method for starting and running of a compressor of an inverter refrigerator comprises the following specific steps:
the method comprises the following steps: powering on the refrigerator for operation;
step two: judging which ring temperature section the current ring temperature Te (X) belongs to, judging whether a freezing sensor Tfs is greater than the starting temperature Tfs-on of a freezing chamber or not, and meeting the condition that the shutdown time of a compressor is greater than 10 min;
step three: judging which ring temperature section the current ring temperature Te (X) belongs to, and judging whether the current compressor uses Rc (X) as the target compressor rotating speed Rc (N) corresponding to the ring temperature section;
step four: after the refrigeration system load determination process is completed, the process returns to step three, and it is determined again whether rc (x) of the compressor currently is the target compressor rotation speed rc (n) corresponding to the cycle temperature section, and the cycle is repeated until the target compressor rotation speed rc (n) of the cycle temperature te (x) is reached (that is, rc (x) is rc (n)), and the operation is continued until the refrigerator compartment satisfies the shutdown temperature, and the compressor is stopped.
Further, in the second step:
(1) if the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber and the compressor stop time is greater than 10min, the compressor operates at the rotation speed of Rc1, and the operation time is as follows: t1 min;
(2) if the freezing sensor Tfs is not more than the starting temperature Tfs-on of the freezing chamber, and the compressor stopping time is not more than 10 min; the compressor remains in a stopped state.
Further, in the third step:
(1) if the current compressor rotation speed rc (x) is the target compressor rotation speed rc (n) corresponding to the ring temperature section, namely rc (x) ═ rc (n), the compressor keeps operating at rc (n);
entering a shutdown judgment flow: and judging whether the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber.
Further, in the third step:
1) if the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber, the compressor is stopped;
2) if the freezing sensor Tfs is larger than the starting temperature Tfs-off of the freezing chamber, the compressor continues to be started, and the cycle is judged until the freezing sensor Tfs is smaller than or equal to the starting temperature Tfs-off of the freezing chamber, and the compressor stops.
Further, in the third step:
(2) if the current compressor rotation speed rc (x) is not the compressor target rotation speed rc (n) corresponding to the ring temperature section, that is, rc (x) ≠ rc (n), the compressor is operated in the 1-gear upshift mode, that is, rc (x) ═ rc (x) + 1;
entering a refrigerating system load judgment process: and judging whether the temperature Tfd of the freezing evaporator sensor is less than the sum of the ambient temperature Te (X) minus the sum of the ambient temperature interval M and different constants K.
Further, in the third step:
1) if the temperature Tfd of the freezing evaporator sensor is less than the sum of the ring temperature Te (X) minus the ring temperature interval M and different constants K, the compressor operates at the current rotating speed t (X) ═ t (X) + 1;
2) if the freezing evaporator sensor temperature Tfd is not less than the sum of the loop temperature te (x) minus the loop temperature interval M and the different constant K, the compressor operates at the current speed t (x) 2(t (x)) + 1.
The invention has the following beneficial effects: no matter the refrigerator is in any environment temperature within the design range, the pressure balance of the refrigerating system is adjusted, the load condition of the refrigerator is judged by judging the combination of the temperature of an environment temperature sensor, the temperature of a freezing chamber sensor and the temperature of a freezing evaporator sensor, the compressor is controlled to be started at a low speed and is gradually shifted up to a target rotating speed from the low speed, the running time of each stage of rotating speed is controlled according to the load of the system, so that the compressor is stably operated without resonance shaking when being started, and finally the purposes of reducing noise, reducing energy consumption and enhancing the reliability of a main board are achieved. In the refrigerator development process, the working condition of the lowest machine rotating speed only needs to be calibrated, the compressor is started and calibrated for multiple times, starting jitter and noise are avoided, the development period of the variable frequency refrigerator is shortened, the utilization rate of a laboratory is improved, energy consumption caused by long-time operation of testing equipment is reduced, and therefore the effects of energy conservation and emission reduction are achieved.
Description of the drawings:
FIG. 1 is a schematic diagram of a method for controlling the start-up operation of a compressor of an inverter refrigerator according to the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
The invention discloses a control method for starting and running a compressor of a variable frequency refrigerator, which comprises the following specific steps of:
the method comprises the following steps: powering on the refrigerator for operation;
step two: judging which ring temperature section the current ring temperature Te (X) belongs to; judging whether the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber or not, and meeting the condition that the shutdown time of the compressor is greater than 10 min;
(1) if the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber and the compressor stop time is greater than 10min, the compressor operates at the rotation speed of Rc1, and the operation time is as follows: t1 min;
(2) if the freezing sensor Tfs is not more than the starting temperature Tfs-on of the freezing chamber, and the compressor stopping time is not more than 10 min; the compressor remains in a stopped state;
step three: judging which ring temperature section the current ring temperature Te (X) belongs to, and judging whether the current compressor uses Rc (X) as the target compressor rotating speed Rc (N) corresponding to the ring temperature section;
(1) if the current compressor rotation speed rc (x) is the target compressor rotation speed rc (n) (i.e., rc (x) ═ rc (n)) corresponding to the ring temperature section, the compressor keeps operating at rc (n);
entering a shutdown judgment flow: judging whether the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber or not;
1) if the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber, the compressor is stopped;
2) if the freezing sensor Tfs is larger than the starting temperature Tfs-off of the freezing chamber, the compressor continues to be started, and the circulation judgment is carried out until the freezing sensor Tfs is smaller than or equal to the starting temperature Tfs-off of the freezing chamber, the compressor is stopped;
(2) if the current compressor rotation speed rc (x) is not the target compressor rotation speed rc (n) (i.e., rc (x) ≠ rc (n)) corresponding to the ring temperature segment, the compressor is operated in the 1-gear up (i.e., rc (x) ═ rc (x) + 1);
entering a refrigerating system load judgment process: judging whether the temperature Tfd of the freezing evaporator sensor is less than the sum of the environmental temperature Te (X) minus the environmental temperature interval M and different constants K;
1) if the temperature Tfd of the freezing evaporator sensor is less than the sum of the ring temperature Te (X) minus the ring temperature interval M and different constants K, the compressor operates at the current rotating speed t (X) ═ t (X) + 1;
2) if the temperature Tfd of the freezing evaporator sensor is not less than the sum of the temperature te (x) minus the temperature interval M and the different constant K, the current running time t (x) of the compressor at the rotation speed t (x) is 2(t (x)) + 1;
step four: after the refrigeration system load determination process is finished, the process returns to step three, and it is determined again whether the current compressor has rc (x) as the target compressor rotation speed rc (n) corresponding to the loop temperature section, and the cycle is repeated until the target compressor rotation speed rc (n) of the loop temperature te (x) is reached (that is, rc (x) ═ rc (n)), and the operation is continued until the refrigerator compartment meets the shutdown temperature, and the compressor is stopped.
According to the control method for starting and running the compressor of the variable frequency refrigerator, when the temperature is higher, the corresponding temperature interval is judged according to the specific environment temperature, at the moment, the whole load of the refrigerator is large, the compressor is prevented from being directly started at a higher rotating speed, and the compressor is stepped up to the target rotating speed step by step from a low speed, so that the problems of starting jitter noise of the compressor and the stepping-up noise of the compressor are solved, the instantaneous large current can be effectively avoided, the current impact on a main control board is reduced, the starting power consumption is reduced, the noise and the energy consumption are reduced, and the reliability of the main board is enhanced.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (6)
1. A control method for starting and running of a compressor of a frequency conversion refrigerator is characterized by comprising the following steps: the method comprises the following specific steps:
the method comprises the following steps: powering on the refrigerator for operation;
step two: judging which ring temperature section the current ring temperature Te (X) belongs to, judging whether the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber or not, and meeting the condition that the shutdown time of the compressor is greater than 10 min;
step three: judging which ring temperature section the current ring temperature Te (X) belongs to, and judging whether the current compressor uses Rc (X) as the target compressor rotating speed Rc (N) corresponding to the ring temperature section;
step four: after the refrigeration system load determination process is completed, the process returns to step three, and it is determined again whether rc (x) of the compressor currently is the target compressor rotation speed rc (n) corresponding to the cycle temperature section, and the cycle is repeated until the target compressor rotation speed rc (n) of the cycle temperature te (x) is reached (that is, rc (x) is rc (n)), and the operation is continued until the refrigerator compartment satisfies the shutdown temperature, and the compressor is stopped.
2. The method for controlling the starting operation of the compressor of the inverter refrigerator according to claim 1, wherein: in the second step:
(1) if the freezing sensor Tfs is greater than the starting temperature Tfs-on of the freezing chamber and the compressor stop time is greater than 10min, the compressor operates at the rotation speed of Rc1, and the operation time is as follows: t1 min;
(2) if the freezing sensor Tfs is not more than the starting temperature Tfs-on of the freezing chamber, the shutdown time of the compressor is not more than 10 min; the compressor remains in a stopped state.
3. The method for controlling the starting operation of the compressor of the inverter refrigerator according to claim 2, wherein: the third step is as follows:
(1) if the current compressor rotation speed rc (x) is the target compressor rotation speed rc (n) corresponding to the ring temperature section, that is, if rc (x) is rc (n), the compressor keeps operating at rc (n);
entering a shutdown judgment flow: and judging whether the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber.
4. The method for controlling the starting operation of the compressor of the inverter refrigerator according to claim 3, wherein: in the third step:
1) if the freezing sensor Tfs is less than or equal to the starting temperature Tfs-off of the freezing chamber, the compressor is stopped;
2) if the freezing sensor Tfs is larger than the starting temperature Tfs-off of the freezing chamber, the compressor continues to be started, and the cycle is judged until the freezing sensor Tfs is smaller than or equal to the starting temperature Tfs-off of the freezing chamber, and the compressor stops.
5. The method for controlling the starting operation of the compressor of the inverter refrigerator according to claim 2, wherein: the third step is as follows:
(2) if the current compressor rotation speed rc (x) is not the compressor target rotation speed rc (n) corresponding to the ring temperature section, that is, rc (x) ≠ rc (n), the compressor is operated in the 1-gear upshift mode, that is, rc (x) ═ rc (x) + 1;
entering a refrigerating system load judgment process: and judging whether the temperature Tfd of the freezing evaporator sensor is less than the sum of the temperature Te (X) minus the temperature interval M and the different constant K.
6. The method for controlling the starting operation of the compressor of the inverter refrigerator according to claim 5, wherein: in the third step:
1) if the temperature Tfd of the freezing evaporator sensor is less than the sum of the ring temperature Te (X) minus the ring temperature interval M and different constants K, the compressor operates at the current rotating speed t (X) ═ t (X) + 1;
2) if the freezing evaporator sensor temperature Tfd is not less than the sum of the loop temperature te (x) minus the loop temperature interval M and the different constant K, the compressor operates at the current speed t (x) 2(t (x)) + 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747328.4A CN115096041A (en) | 2022-06-29 | 2022-06-29 | Method for controlling starting operation of compressor of inverter refrigerator |
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| CN202210747328.4A CN115096041A (en) | 2022-06-29 | 2022-06-29 | Method for controlling starting operation of compressor of inverter refrigerator |
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| CN202210747328.4A Pending CN115096041A (en) | 2022-06-29 | 2022-06-29 | Method for controlling starting operation of compressor of inverter refrigerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790064A (en) * | 2022-12-05 | 2023-03-14 | 珠海格力电器股份有限公司 | Control method and device for refrigerator compressor and refrigerator |
| CN115823820A (en) * | 2022-12-27 | 2023-03-21 | 海信冰箱有限公司 | Refrigerator and weighing data reporting method of weighing device of refrigerator |
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2022
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Application publication date: 20220923 |
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