CN114279142B - Refrigerator, variable frequency compressor system and control method of variable frequency compressor system - Google Patents
Refrigerator, variable frequency compressor system and control method of variable frequency compressor system Download PDFInfo
- Publication number
- CN114279142B CN114279142B CN202111645659.9A CN202111645659A CN114279142B CN 114279142 B CN114279142 B CN 114279142B CN 202111645659 A CN202111645659 A CN 202111645659A CN 114279142 B CN114279142 B CN 114279142B
- Authority
- CN
- China
- Prior art keywords
- frequency
- variable frequency
- compressor
- stop period
- preset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007710 freezing Methods 0.000 claims description 23
- 230000008014 freezing Effects 0.000 claims description 23
- 230000006872 improvement Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a refrigerator, a variable frequency compressor system and a control method thereof. The refrigerator is internally provided with a variable-frequency compressor and an electronic temperature controller, and after the refrigerator is electrified, the operation gear of the electronic temperature controller is obtained; determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor; and in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period, so as to adjust the operation frequency of the variable frequency compressor. By adopting the invention, the frequency adjustment of the variable frequency compressor can be realized under the condition that the ambient temperature cannot be detected, so that the variable frequency compressor can achieve better working efficiency.
Description
Technical Field
The invention relates to the technical field of refrigerator control, in particular to a refrigerator, a variable frequency compressor system and a control method thereof.
Background
Existing refrigerator products mostly include a refrigerating compartment and a freezing compartment. The refrigerating chamber and the freezing chamber are both provided with electronic temperature sensors, and temperature adjustment is carried out by adopting potentiometers. The compressor is an important component of the refrigeration system and provides power for the refrigeration cycle, and the variable frequency compressor has the advantages of energy conservation, low noise and the like, so that the refrigerator product with the variable frequency compressor is accepted by consumers. The variable frequency compressor can be in the optimal running state through stepless adjustment of the rotating speed, so that the optimal working efficiency is achieved.
At present, most frequency control schemes for variable frequency compressors are to receive an ambient temperature sensor signal through a main control board, match different frequencies for the compressors according to different ambient temperature sensor signals, and generally follow the rules of high-temperature high-frequency and low-temperature low-frequency. However, the inventors found that the prior art has at least the following problems: at present, for the purposes of saving refrigerator structures, saving production cost and the like, a placement position of an ambient temperature sensor is not set, so that the variable frequency control of the compressor is difficult to be well realized by the product, and the variable frequency compressor is difficult to achieve optimal working efficiency.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator, a variable frequency compressor system and a control method thereof, which can effectively realize the frequency adjustment of the variable frequency compressor under the condition that the ambient temperature cannot be detected, so that the variable frequency compressor achieves better working efficiency, meanwhile, the production cost of the refrigerator can be saved, and the use experience of a user is improved.
To achieve the above object, an embodiment of the present invention provides a refrigerator including:
the refrigerator body is internally provided with a variable-frequency compressor, an electronic temperature controller, a variable-frequency controller and at least one storage chamber; the electronic temperature controller is used for adjusting the indoor temperature of the storage room;
the variable frequency controller is connected with the variable frequency compressor and the electronic temperature controller and is used for:
after the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
And controlling the variable frequency compressor to operate according to the determined operating frequency.
As an improvement of the above solution, in the first start-stop period of the inverter compressor, determining the operating frequency of the inverter compressor after being started in the current start-stop period according to the operating gear specifically includes:
in the first start-stop period of the variable frequency compressor, if the running gear is smaller than or equal to a preset running gear threshold value, determining that the running frequency of the variable frequency compressor after being started is a first preset running frequency in the current start-stop period;
if the operation gear is larger than the preset operation gear threshold, determining that the operation frequency of the variable frequency compressor after being started is a second preset operation frequency in the current start-stop period; wherein the second preset operating frequency is greater than the first preset operating frequency.
As an improvement of the above solution, in the non-first start-stop period of the variable frequency compressor, determining the operation frequency after the variable frequency compressor is started in the current start-stop period according to the operation frequency before the variable frequency compressor is stopped in the previous start-stop period, the start rate of the previous start-stop period, and the operation duration meeting the preset operation frequency condition in the previous start-stop period, which specifically includes:
And in a non-initial start-stop period of the variable frequency compressor, when the operating frequency of the variable frequency compressor before stopping in the previous start-stop period is the first preset operating frequency, determining that the operating frequency of the variable frequency compressor after starting in the current start-stop period is the first preset operating frequency.
As an improvement of the above solution, the preset operating frequency threshold is the second preset operating frequency; determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor, and further comprising:
in a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping in a previous start-stop period is larger than or equal to the second preset operation frequency, acquiring the start rate of the previous start-stop period of the variable frequency compressor, and the operation time length of which the operation frequency is larger than the second preset operation frequency in the previous start-stop period as a first operation time length;
If the starting rate is greater than a preset starting rate threshold value and the first operation time length is greater than a preset first operation time length threshold value, determining that the operation frequency of the variable frequency compressor after being started in the current starting and stopping period is the operation frequency of the variable frequency compressor before being stopped in the previous starting and stopping period;
and if the starting rate is smaller than or equal to the preset starting rate threshold value or the first operation duration is smaller than or equal to the preset first operation duration threshold value, determining the operation frequency of the variable frequency compressor after being started under the current starting and stopping period to be the first preset operation frequency.
As an improvement of the above solution, the variable frequency controller is further configured to:
in each start-stop period of the variable frequency compressor, acquiring continuous operation time length of the variable frequency compressor at the current operation frequency as second operation time length;
and when the second operation time length is greater than or equal to a preset second operation time length threshold value, the current operation frequency of the variable frequency compressor in the current start-stop period is increased by a preset operation frequency adjustment step length.
As an improvement of the above, the storage chamber includes a freezing chamber; the variable frequency controller is further configured to:
Acquiring the indoor temperature of the freezing chamber and the starting temperature of the compressor in each start-stop period of the variable frequency compressor;
judging whether a preset temperature threshold condition is met or not according to the indoor temperature of the freezing chamber and the starting temperature of the compressor;
when the preset temperature threshold condition is met, the current operating frequency of the variable frequency compressor in the current start-stop period is increased by a preset operating frequency adjustment step length.
As an improvement of the above, the preset temperature threshold condition includes: the temperature difference between the indoor temperature of the freezing chamber and the starting temperature of the compressor is larger than a preset temperature difference threshold value and lasts for a preset duration.
As an improvement of the scheme, the starting-up rate threshold is 60%, and the first operation duration threshold is 20min.
The embodiment of the invention also provides a variable frequency compressor system which is applied to the refrigerator, and an electronic temperature controller and at least one storage room are also arranged in the refrigerator; the electronic temperature controller is used for adjusting the indoor temperature of the storage room;
the variable frequency compressor system comprises a variable frequency compressor and a variable frequency controller; the variable frequency controller is connected with the variable frequency compressor and the electronic temperature controller and is used for:
After the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
and controlling the variable frequency compressor to operate according to the determined operating frequency.
The embodiment of the invention also provides a control method of the variable frequency compressor system, which is applied to the refrigerator, wherein the refrigerator is internally provided with an electronic temperature controller and at least one storage room; the electronic temperature controller is used for adjusting the indoor temperature of the storage room; the variable frequency compressor system comprises a variable frequency compressor;
The control method comprises the following steps:
after the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
and controlling the variable frequency compressor to operate according to the determined operating frequency.
Compared with the prior art, the refrigerator, the variable frequency compressor system and the control method thereof disclosed by the embodiment of the invention are characterized in that the variable frequency compressor and the electronic temperature controller for adjusting the indoor temperature of the refrigerator storage chamber are arranged in the refrigerator. After the refrigerator is electrified, the variable frequency controller obtains the running gear of the electronic temperature controller; determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor; and in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period, so as to control the variable frequency compressor to operate according to the determined operation frequency. By adopting the technical means of the embodiment of the invention, the current environment temperature state is judged through the operation gear of the electronic temperature controller so as to determine the initial operation frequency of the variable frequency compressor in the first start-stop period, and then the change condition of the current environment temperature is predicted by combining the operation condition of the variable frequency compressor in the previous start-stop period, so that the initial operation frequency of each non-first start-stop period of the variable frequency compressor is determined, the frequency adjustment of the variable frequency compressor can be realized under the condition that the current environment temperature cannot be accurately detected, the working efficiency of the variable frequency compressor is better, the refrigerating performance of the refrigerator is improved, the production cost of the refrigerator is saved, and the use experience of a user is improved.
Drawings
Fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of the work performed by the variable frequency controller of the refrigerator in a preferred embodiment of the present invention;
FIG. 3 is a schematic flow chart of the operation performed by the variable frequency controller of the refrigerator in another preferred implementation of the embodiment of the present invention;
fig. 4 is a flowchart illustrating operations performed by a variable frequency controller of a refrigerator according to still another preferred embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a schematic structure of a refrigerator according to an embodiment of the present invention is shown. The embodiment of the invention provides a refrigerator, which comprises: a refrigerator body 11, wherein a variable frequency compressor 12, an electronic temperature controller 13, a variable frequency controller 14 and at least one storage chamber 15 are arranged in the refrigerator body;
Specifically, the inverter compressor 12 is a functional component in a refrigeration system of a refrigerator, and is used for realizing the transfer of refrigerant in the refrigeration system. The electronic thermostat 13 is used to adjust the indoor temperature of the storage compartment 15.
Alternatively, the refrigerator includes 2 door bodies dividing the storage chamber 15 into a refrigerating chamber and a freezing chamber, the upper door is refrigerated, and the lower door is frozen. The refrigerating chamber and the freezing chamber are respectively provided with an electronic temperature sensor for collecting the indoor temperature of the storage chamber.
The electronic temperature controller 13 has a gear adjusting function, is divided into a plurality of operation gears in advance, and under each operation gear, the operation parameters of the electronic temperature controller 13 are different. For example, the electronic temperature controller 13 is a potentiometer with gear adjustment, which is divided into 7 operation gears, and the steps from 1 to 7 are deepened sequentially, and the deeper the gear of the potentiometer, the larger the cooling capacity required by the refrigerator.
Optionally, the potentiometer may be disposed in the refrigerating chamber for realizing adjustment of indoor temperatures of the refrigerating chamber and the freezing chamber.
The variable frequency controller 14 is connected with the variable frequency compressor 12 and the electronic temperature controller 13. The variable frequency controller 14 is configured to perform steps S11 to S14:
S11, after the refrigerator is electrified, acquiring an operation gear of the electronic temperature controller;
s12, determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
s13, in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
s14, controlling the variable frequency compressor to operate according to the determined operating frequency.
It should be noted that, the corresponding start-up condition or stop condition is preset, so that after the variable frequency compressor 12 is powered on, the variable frequency controller 14 is triggered to control the variable frequency compressor 12 to start up, that is, start up and operate when it is determined that the current start-up condition is reached, and control the variable frequency compressor 12 to stop, that is, stop operating when the stop condition is reached, and then, when the current start-up condition is reached again, control the variable frequency compressor 12 to start up and operate again, so as to implement the cycle.
It should be noted that the on-off period of the inverter compressor 12 refers to the sum of the time duration of one start and the time duration of stop of the inverter compressor, that is, the time duration of the inverter compressor 12 from the current start time to the next start time. It will be appreciated that in embodiments of the present invention, the on-time and off-time of different on-off periods are not necessarily equal.
Specifically, in the embodiment of the present invention, after the refrigerator is powered on, the inverter compressor 12 is powered on, so as to obtain the operating gear of the electronic temperature controller 13. The operation gear of the electronic temperature controller 13 is preset by a user. In combination with the specific application scenario, the number of operation gears is 7, and a user can set the operation gear of the electronic temperature controller 13 to be any one gear of 1-7 gears according to own requirements and the current environment temperature. In general, the higher the ambient temperature, the greater the operating range of the electronic thermostat.
After the operation gear of the electronic thermostat 13 is obtained, the variable frequency controller 14 determines an initial operation frequency of the variable frequency compressor 12 after being started up according to the operation gear. According to the larger operation gear of the electronic temperature controller, the larger the cooling capacity required by the refrigerator is, and the larger the operation frequency of the compressor is; the smaller the operation gear is, the smaller the cooling capacity required by the refrigerator is, and the smaller the operation frequency of the compressor is, the initial operation frequency of the variable frequency compressor can be determined according to the operation gear of the electronic temperature controller. When the variable frequency compressor 12 reaches a start-up condition, a first start-stop cycle is entered, operating at the determined initial operating frequency.
It should be noted that, the inverter compressor 12 is not operated at the constant initial operation frequency in the current start-stop period, and the inverter controller 14 can adjust the current operation frequency of the inverter compressor 12 in real time according to the operation condition of the inverter compressor 12, that is, the operation frequency before the shutdown is not necessarily equal to the initial operation frequency when the inverter compressor is stopped.
Then, the inverter compressor 12 is stopped when the shutdown condition is reached, and then, when the inverter compressor 12 reaches the startup condition again, the second start-stop period is entered, and the inverter controller 14 pre-judges the current environmental temperature state according to the operation condition of the inverter compressor 12 in the previous start-stop period, including the operation frequency before stopping, the start-up rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period, so as to realize the determination of the initial operation frequency after the inverter compressor 12 is started in the current start-stop period.
It will be appreciated that in each of the subsequent start-stop cycles of the variable frequency compressor 12, except for the first start-stop cycle, the variable frequency controller 14 determines the frequency of operation of the variable frequency compressor after start-up in the current start-stop cycle based on the operation of the previous start-stop cycle.
The embodiment of the invention provides a refrigerator, wherein a variable-frequency compressor and an electronic temperature controller for adjusting the indoor temperature of a refrigerator storage chamber are arranged in the refrigerator. After the refrigerator is electrified, the variable frequency controller obtains the running gear of the electronic temperature controller; determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor; and in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period, so as to control the variable frequency compressor to operate according to the determined operation frequency. By adopting the technical means of the embodiment of the invention, the current environment temperature state is judged through the operation gear of the electronic temperature controller so as to determine the initial operation frequency of the variable frequency compressor in the first start-stop period, and then the change condition of the current environment temperature is predicted by combining the operation condition of the variable frequency compressor in the previous start-stop period, so that the initial operation frequency of each non-first start-stop period of the variable frequency compressor is determined, the frequency adjustment of the variable frequency compressor can be realized under the condition that the current environment temperature cannot be accurately detected, the working efficiency of the variable frequency compressor is better, the refrigerating performance of the refrigerator is improved, the production cost of the refrigerator is saved, and the use experience of a user is improved.
As a preferred embodiment, referring to fig. 3, a schematic flow chart of the operation performed by the variable frequency controller of the refrigerator according to another preferred embodiment of the present invention is shown. The step S12 specifically includes steps S121 and S122:
s121, in the first start-stop period of the variable frequency compressor, if the operation gear is smaller than or equal to a preset operation gear threshold value, determining that the operation frequency of the variable frequency compressor after being started is a first preset operation frequency in the current start-stop period.
S122, if the operation gear is larger than the preset operation gear threshold, determining that the operation frequency of the variable frequency compressor after being started is a second preset operation frequency in the current start-stop period; wherein the second preset operating frequency is greater than the first preset operating frequency.
In the embodiment of the present invention, in combination with the above embodiment, the operating range of the electronic thermostat 13 is 7 ranges, and the preset operating range threshold is set to 4, so that the operating range is divided into a deep range and a shallow range. After the refrigerator is electrified, when the running gear g of the electronic temperature controller 13 is less than or equal to 4, the electronic temperature controller 13 is in a shallow gear, the current environment temperature is lower, the required cold energy of the refrigerator is smaller, and the initial running frequency of the variable frequency compressor is determined to be a first running frequency in a first start-stop period; when the operating gear g of the electronic temperature controller 13 is greater than 4, the electronic temperature controller 13 is in a deep gear, the current ambient temperature is higher, the cooling capacity required by the refrigerator is larger, and the initial operating frequency of the variable frequency compressor is determined to be a second operating frequency which is greater than the first operating frequency in the first start-stop period.
As a preferred embodiment, the operating frequency of the inverter compressor 12 is normally within a preset operating frequency range, and therefore, the operating frequency of the compressor is divided into a plurality of frequency steps P according to the operating frequency range.
By way of example, the frequency gear of the inverter compressor is divided into 3 gears, the smaller the frequency gear is, the smaller the operating frequency is; the larger the frequency shift, the larger the operating frequency. That is, the operating frequency corresponding to the frequency shift position p=1 is smaller than the operating frequency corresponding to the frequency shift position p=2, and the operating frequency corresponding to the frequency shift position p=2 is smaller than the operating frequency corresponding to the frequency shift position p=3.
The first operating frequency is in an operating frequency range corresponding to p=1, and the second operating frequency is in an operating frequency range corresponding to p=2. That is, when the operating gear g of the electronic thermostat 13 is 4 or less, the frequency gear of the inverter compressor is determined to be p=1; when the operating gear g of the electronic thermostat 13 is greater than 4, the frequency gear of the inverter compressor is determined to be p=2.
By adopting the technical means of the embodiment of the invention, the operation gear of the electronic temperature controller is divided into a deep gear and a shallow gear according to the preset operation gear threshold g=4, and the cold energy required by the refrigerator is determined, so that the current environment temperature is prejudged, the initial frequency gear of the variable frequency compressor in the first start-stop period is determined, namely the initial operation frequency is determined, the whole control logic is simple and effective, the variable frequency compressor can reach better working efficiency more quickly, and the refrigerating performance of the refrigerator is improved.
As a preferred embodiment, referring to fig. 3, the step S13 specifically includes a step S131:
s131, in a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping in a previous start-stop period is the first preset operation frequency, determining that the operation frequency of the variable frequency compressor after starting in the current start-stop period is the first preset operation frequency.
Specifically, after the variable frequency compressor ends the first start-stop period, in the next start-stop period, the variable frequency controller 14 obtains the operation frequency of the variable frequency compressor 12 before stopping in the previous start-stop period, and if the operation frequency of the variable frequency compressor before stopping in the previous start-stop period is the first preset operation frequency, the variable frequency compressor 12 is controlled to still start to operate in the current start-stop period at the first preset operation frequency.
By way of example, in combination with the above specific application scenario, after the refrigerator is powered on, the running gear of the electronic temperature controller is obtained, if g is less than or equal to 4, when the variable frequency compressor reaches the start condition and enters the first start-stop period, the variable frequency compressor is controlled to start to run at the frequency gear p=1. When the variable frequency compressor reaches a stop condition and stops, the operation frequency of the variable frequency compressor before stopping is obtained, and the variable frequency compressor is still started to operate in the frequency gear P=1 under the assumption that the frequency gear P=1 is still present, and when the variable frequency compressor reaches a starting condition again and enters a second starting and stopping period, the variable frequency compressor is controlled to still operate in the frequency gear P=1. And so on.
As a preferred embodiment, the preset operating frequency threshold is the second preset operating frequency; step S13 further includes steps S132 to S134:
s132, in a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping is greater than or equal to the second preset operation frequency in the former start-stop period, acquiring the start rate of the former start-stop period of the variable frequency compressor, and the operation time length of which the operation frequency is greater than the second preset operation frequency in the former start-stop period as a first operation time length;
s133, if the starting rate is greater than a preset starting rate threshold value and the first operation time length is greater than a preset first operation time length threshold value, determining that the operation frequency of the variable frequency compressor after being started in the current starting and stopping period is the operation frequency of the variable frequency compressor before being stopped in the previous starting and stopping period;
and S134, if the starting rate is smaller than or equal to the preset starting rate threshold value or the first operation duration is smaller than or equal to the preset first operation duration threshold value, determining the operation frequency of the variable frequency compressor after being started in the current starting and stopping period to be the first preset operation frequency.
Specifically, after the variable frequency compressor ends the first start-stop period, in the next start-stop period, the variable frequency controller 14 obtains the operation frequency of the variable frequency compressor 12 before the start-stop in the previous start-stop period, if the operation frequency of the variable frequency compressor before the stop in the previous start-stop period is greater than or equal to the second preset operation frequency, further calculates the start-up rate K of the variable frequency compressor in the previous start-stop period, and the operation duration a meeting the requirement of greater than or equal to the second preset operation frequency in the previous start-stop period, and further, determines the operation frequency of the variable frequency compressor after the start-up in the current start-stop period by combining the start-up rate K and the operation duration a.
Specifically, the starting rate of the variable frequency compressor in the previous start-stop period is calculated by the following calculation formula:
wherein, K is the start rate of the previous start-stop period, ton is the start time of the previous start-stop period, and Toff is the stop time of the previous start-stop period.
Preferably, the starting-up rate threshold is 60%, and the first operation duration threshold is 20min.
By way of example, in combination with the above specific application scenario, after the refrigerator is powered on, the operation gear of the electronic temperature controller is obtained, if g is less than or equal to 4, when the variable frequency compressor reaches a start-up condition and enters a first start-stop period, the variable frequency compressor is controlled to start to operate with a frequency gear p=1, then, the variable frequency controller adjusts the operation frequency of the variable frequency compressor in real time according to the operation condition of the variable frequency compressor, when the variable frequency compressor reaches a stop condition and stops, the operation frequency of the variable frequency compressor before stopping is obtained, and if the variable frequency compressor changes to the frequency gear p=2, when the variable frequency compressor reaches the start-up condition again and enters a second start-stop period, the start-up rate K and the first operation duration a are further calculated because the frequency P is more than or equal to 2 before the variable frequency compressor stops in the previous start-stop period.
If the starting rate K is greater than 60% and the first operation duration a is greater than 20min, the operation frequency of the variable frequency compressor after starting is the operation frequency of the variable frequency compressor before stopping in the previous starting and stopping period, and the variable frequency compressor starts to operate according to the operation frequency of the variable frequency compressor when stopping in the previous starting and stopping period, that is, the variable frequency compressor starts to operate according to the frequency gear p=2. If the starting rate K is less than or equal to 60% and the first operation duration a is less than or equal to 20min, determining that the operation frequency of the variable frequency compressor after being started is the first preset operation frequency in the current starting and stopping period, and starting the variable frequency compressor to operate at the first preset operation frequency, that is, starting the variable frequency compressor to operate according to the frequency gear p=1.
By adopting the technical means of the embodiment of the invention, for the non-initial start-stop period, the cold quantity required by the refrigerator can be determined according to the operation frequency before the variable frequency compressor is stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period, so that the current environment temperature is prejudged, the operation frequency after the variable frequency compressor is started in the current start-stop period is determined, the whole control logic is simple and effective, the variable frequency compressor can reach better working efficiency more quickly, and the refrigeration performance of the refrigerator is improved.
As a preferred embodiment, the inverter compressor 12 is not operated at the constant initial operating frequency during the current start-stop period, and the inverter controller 14 can adjust the current operating frequency of the inverter compressor 12 in real time according to the operating condition of the inverter compressor 12. Then, in each on-off period (including the first on-off period and each non-first on-off period), the frequency conversion controller adjusts the operation frequency of the variable frequency compressor as follows.
In a preferred embodiment, referring to fig. 3, the variable frequency controller is further configured to perform steps S15 and S16:
s15, in each start-stop period of the variable frequency compressor, acquiring continuous operation time length of the variable frequency compressor at the current operation frequency as second operation time length;
s16, when the second operation time length is greater than or equal to a preset second operation time length threshold value, the current operation frequency of the variable frequency compressor in the current start-stop period is increased by a preset operation frequency adjustment step length.
In the embodiment of the present invention, according to the above embodiment, the initial operating frequency of the inverter compressor at the time of starting up at each start-stop period may be determined. Furthermore, the variable frequency controller counts the continuous operation time of the variable frequency compressor under the current operation frequency, if the variable frequency compressor has continuously operated for a second operation time threshold and has not been stopped, the operation frequency of the variable frequency compressor needs to be raised, the raised operation frequency is taken as the current operation frequency, the continuous operation time of the variable frequency compressor under the current operation frequency is continuously judged, if the variable frequency compressor has continuously operated for the second operation time threshold and has not been stopped, the operation frequency of the variable frequency compressor needs to be raised again until the variable frequency compressor is stopped, or the upper limit value of the operation frequency is reached.
In combination with the specific application scenario, the variable frequency compressor comprises three frequency gears p=1, p=2 and p=3. If the continuous running time of the variable frequency compressor in the P=1 gear is longer than 120min, the variable frequency compressor is lifted to the P=2 gear to run, and if the continuous running time of the variable frequency compressor in the P=2 gear is longer than 60min, the variable frequency compressor is lifted to the P=3 gear to run until the variable frequency compressor is stopped.
By adopting the technical means of the embodiment of the invention, whether the current refrigerating capacity meets the cold capacity required by the refrigerator is judged by judging whether the continuous operation time of the variable frequency compressor at the current operation frequency is longer than a certain time, so that the frequency-raising adjustment of the variable frequency compressor is realized, the variable frequency compressor can achieve better working efficiency, and the refrigerating performance of the refrigerator is improved.
In another preferred embodiment, referring to fig. 4, a schematic flow chart of the operation performed by the variable frequency controller of the refrigerator according to still another preferred embodiment of the present invention is shown. The variable frequency controller is further configured to perform steps S17 to S19:
s17, acquiring the indoor temperature of the freezing chamber and the starting temperature of the compressor in each start-stop period of the variable frequency compressor;
S18, judging whether a preset temperature threshold condition is met or not according to the indoor temperature of the freezing chamber and the starting temperature of the compressor;
and S19, when the preset temperature threshold condition is met, the current operating frequency of the variable frequency compressor in the current start-stop period is increased by a preset operating frequency adjustment step length.
The preset temperature threshold condition comprises: the temperature difference between the indoor temperature of the freezing chamber and the starting temperature of the compressor is larger than a preset temperature difference threshold value and lasts for a preset duration.
It should be noted that, because the refrigerator can open the door in the actual use process, and can enlarge a large amount of food, the required cold volume of refrigerator can increase like this, if in each start-stop period, only maintain the control logic that the variable frequency compressor just rises the frequency when the length of time is longer than the threshold value of second operation duration in continuous operation at current operating frequency, improve the cold volume of refrigerator, response time is too long like this, is unfavorable for the fresh-keeping of food.
Therefore, in the embodiment of the invention, the freezing chamber temperature sensor is arranged in the freezing chamber to acquire the indoor temperature Tc of the freezing chamber. And calculating the difference value Tc-Tf between the indoor temperature of the freezing chamber and the starting temperature of the compressor by acquiring the indoor temperature Tc of the freezing chamber and the starting temperature Tf of the compressor so as to realize the frequency adjustment of the variable frequency compressor.
It can be appreciated that the preset duration and the preset temperature difference threshold may be set according to actual situations, which do not affect the beneficial effects obtained by the present invention.
As an example, the preset time period is set to 5min and the preset temperature difference threshold is set to 2 ℃. In the current start-stop period, if the difference between the indoor temperature of the freezing chamber and the starting temperature of the compressor lasting for 5min meets Tc-Tf > 2 ℃, which indicates that the preset temperature threshold condition is met currently, the current running frequency of the variable frequency compressor needs to be increased.
In combination with the specific application scenario, the variable frequency compressor comprises three frequency gears p=1, p=2 and p=3. If the variable frequency compressor is detected to continue for 5min in the running process of the P=1 gear, the temperature difference value meets Tc-Tf > 2 ℃, the variable frequency compressor is increased to the P=2 gear to run, and if the variable frequency compressor is detected to continue for 5min in the running process of the P=2 gear, the temperature difference value meets Tc-Tf > 2 ℃, the variable frequency compressor is increased to the P=3 gear to run until the variable frequency compressor is stopped.
By adopting the technical means of the embodiment of the invention, whether the current refrigerating capacity meets the cold capacity required by the refrigerator or not is judged by calculating the difference Tc-Tf between the indoor temperature of the freezing chamber and the starting temperature of the compressor and judging whether the current refrigerating capacity is larger than a certain temperature threshold value for a certain period of time, so that the frequency-variable compressor is subjected to frequency-increasing adjustment, the frequency-variable compressor can achieve better working efficiency, and the refrigerating performance of the refrigerator is improved.
The embodiment of the invention also provides a variable frequency compressor system which is applied to the refrigerator, and an electronic temperature controller and at least one storage room are also arranged in the refrigerator; the electronic temperature controller is used for adjusting the indoor temperature of the storage room;
the variable frequency compressor system comprises a variable frequency compressor and a variable frequency controller; the variable frequency controller is connected with the variable frequency compressor and the electronic temperature controller and is used for executing steps S21 to S24:
s21, after the refrigerator is electrified, acquiring an operation gear of the electronic temperature controller;
s22, determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
s23, in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
S24, controlling the variable frequency compressor to operate according to the determined operating frequency.
By adopting the technical means of the embodiment of the invention, the current environment temperature state is judged through the operation gear of the electronic temperature controller so as to determine the initial operation frequency of the variable frequency compressor in the first start-stop period, and then the change condition of the current environment temperature is predicted by combining the operation condition of the variable frequency compressor in the previous start-stop period, so that the initial operation frequency of each non-first start-stop period of the variable frequency compressor is determined, the frequency adjustment of the variable frequency compressor can be realized under the condition that the current environment temperature cannot be accurately detected, the working efficiency of the variable frequency compressor is better, the refrigerating performance of the refrigerator is improved, the production cost of the refrigerator is saved, and the use experience of a user is improved.
It should be noted that, all the process steps executed by the variable frequency controller of the variable frequency compressor system provided by the embodiment of the present invention are the same as all the process steps executed by the variable frequency controller of the refrigerator in the embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the description is omitted.
The embodiment of the invention also provides a control method of the variable frequency compressor system, which is applied to the refrigerator, wherein the refrigerator is internally provided with an electronic temperature controller and at least one storage room; the electronic temperature controller is used for adjusting the indoor temperature of the storage room; the variable frequency compressor system comprises a variable frequency compressor;
the control method is executed by a preset variable frequency controller, the variable frequency controller and the variable frequency compressor Liang Man, and the control method specifically includes steps S31 to S34:
s31, after the refrigerator is electrified, acquiring an operation gear of the electronic temperature controller;
s32, determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
s33, in a non-initial start-stop period of the variable frequency compressor, determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
S34, controlling the variable frequency compressor to operate according to the determined operating frequency.
By adopting the technical means of the embodiment of the invention, the current environment temperature state is judged through the operation gear of the electronic temperature controller so as to determine the initial operation frequency of the variable frequency compressor in the first start-stop period, and then the change condition of the current environment temperature is predicted by combining the operation condition of the variable frequency compressor in the previous start-stop period, so that the initial operation frequency of each non-first start-stop period of the variable frequency compressor is determined, the frequency adjustment of the variable frequency compressor can be realized under the condition that the current environment temperature cannot be accurately detected, the working efficiency of the variable frequency compressor is better, the refrigerating performance of the refrigerator is improved, the production cost of the refrigerator is saved, and the use experience of a user is improved.
It should be noted that, all flow steps of the control method of the variable frequency compressor system provided by the embodiment of the present invention are the same as all flow steps executed by the variable frequency controller of the refrigerator executing the above embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the description is omitted.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), or the like.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (8)
1. A refrigerator, comprising:
the refrigerator body is internally provided with a variable-frequency compressor, an electronic temperature controller, a variable-frequency controller and at least one storage chamber; the electronic temperature controller is used for adjusting the indoor temperature of the storage room;
the variable frequency controller is connected with the variable frequency compressor and the electronic temperature controller and is used for:
after the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
Controlling the variable frequency compressor to operate according to the determined operating frequency;
the preset operating frequency threshold is a second preset operating frequency; the second preset operating frequency is greater than the first preset operating frequency; determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor, wherein the method specifically comprises the following steps:
in a non-initial start-stop period of the variable frequency compressor, when the operating frequency of the variable frequency compressor before stopping in a previous start-stop period is the first preset operating frequency, determining that the operating frequency of the variable frequency compressor after starting in the current start-stop period is the first preset operating frequency;
in a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping in a previous start-stop period is larger than or equal to the second preset operation frequency, acquiring the start rate of the previous start-stop period of the variable frequency compressor, and the operation time length of which the operation frequency is larger than the second preset operation frequency in the previous start-stop period as a first operation time length;
If the starting rate is greater than a preset starting rate threshold value and the first operation time length is greater than a preset first operation time length threshold value, determining that the operation frequency of the variable frequency compressor after being started in the current starting and stopping period is the operation frequency of the variable frequency compressor before being stopped in the previous starting and stopping period;
and if the starting rate is smaller than or equal to the preset starting rate threshold value or the first operation duration is smaller than or equal to the preset first operation duration threshold value, determining the operation frequency of the variable frequency compressor after being started under the current starting and stopping period to be the first preset operation frequency.
2. The refrigerator of claim 1, wherein the determining the operating frequency of the inverter compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the inverter compressor specifically includes:
in the first start-stop period of the variable frequency compressor, if the running gear is smaller than or equal to a preset running gear threshold value, determining that the running frequency of the variable frequency compressor after being started is a first preset running frequency in the current start-stop period;
and if the operation gear is larger than the preset operation gear threshold, determining the operation frequency of the variable frequency compressor after being started up in the current start-stop period to be a second preset operation frequency.
3. The refrigerator of claim 1, wherein the variable frequency controller is further configured to:
in each start-stop period of the variable frequency compressor, acquiring continuous operation time length of the variable frequency compressor at the current operation frequency as second operation time length;
and when the second operation time length is greater than or equal to a preset second operation time length threshold value, the current operation frequency of the variable frequency compressor in the current start-stop period is increased by a preset operation frequency adjustment step length.
4. The refrigerator of claim 1 or 3, wherein the storage chamber comprises a freezing chamber; the variable frequency controller is further configured to:
acquiring the indoor temperature of the freezing chamber and the starting temperature of the compressor in each start-stop period of the variable frequency compressor;
judging whether a preset temperature threshold condition is met or not according to the indoor temperature of the freezing chamber and the starting temperature of the compressor;
when the preset temperature threshold condition is met, the current operating frequency of the variable frequency compressor in the current start-stop period is increased by a preset operating frequency adjustment step length.
5. The refrigerator of claim 4, wherein the preset temperature threshold condition comprises: the temperature difference between the indoor temperature of the freezing chamber and the starting temperature of the compressor is larger than a preset temperature difference threshold value and lasts for a preset duration.
6. The refrigerator of claim 1, wherein the power-on rate threshold is 60% and the first operation duration threshold is 20min.
7. The variable frequency compressor system is characterized by being applied to a refrigerator, wherein an electronic temperature controller and at least one storage chamber are further arranged in the refrigerator; the electronic temperature controller is used for adjusting the indoor temperature of the storage room;
the variable frequency compressor system comprises a variable frequency compressor and a variable frequency controller; the variable frequency controller is connected with the variable frequency compressor and the electronic temperature controller and is used for:
after the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
Controlling the variable frequency compressor to operate according to the determined operating frequency;
the preset operating frequency threshold is a second preset operating frequency; the second preset operating frequency is greater than the first preset operating frequency; determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor, wherein the method specifically comprises the following steps:
in a non-initial start-stop period of the variable frequency compressor, when the operating frequency of the variable frequency compressor before stopping in a previous start-stop period is the first preset operating frequency, determining that the operating frequency of the variable frequency compressor after starting in the current start-stop period is the first preset operating frequency;
in a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping in a previous start-stop period is larger than or equal to the second preset operation frequency, acquiring the start rate of the previous start-stop period of the variable frequency compressor, and the operation time length of which the operation frequency is larger than the second preset operation frequency in the previous start-stop period as a first operation time length;
If the starting rate is greater than a preset starting rate threshold value and the first operation time length is greater than a preset first operation time length threshold value, determining that the operation frequency of the variable frequency compressor after being started in the current starting and stopping period is the operation frequency of the variable frequency compressor before being stopped in the previous starting and stopping period;
and if the starting rate is smaller than or equal to the preset starting rate threshold value or the first operation duration is smaller than or equal to the preset first operation duration threshold value, determining the operation frequency of the variable frequency compressor after being started under the current starting and stopping period to be the first preset operation frequency.
8. The control method of the variable frequency compressor system is characterized in that the variable frequency compressor system is applied to a refrigerator, and an electronic temperature controller and at least one storage room are further arranged in the refrigerator; the electronic temperature controller is used for adjusting the indoor temperature of the storage room; the variable frequency compressor system comprises a variable frequency compressor;
the control method comprises the following steps:
after the refrigerator is electrified, acquiring the operation gear of the electronic temperature controller;
determining the operating frequency of the variable frequency compressor after being started in the current start-stop period according to the operating gear in the first start-stop period of the variable frequency compressor;
Determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor; the preset operating frequency condition is that the operating frequency of the compressor is larger than a preset operating frequency threshold value;
controlling the variable frequency compressor to operate according to the determined operating frequency;
the preset operating frequency threshold is a second preset operating frequency; the second preset operating frequency is greater than the first preset operating frequency; determining the operation frequency of the variable frequency compressor after being started in the current start-stop period according to the operation frequency of the variable frequency compressor before being stopped in the previous start-stop period, the start rate of the previous start-stop period and the operation time length meeting the preset operation frequency condition in the previous start-stop period in the non-initial start-stop period of the variable frequency compressor, wherein the method specifically comprises the following steps:
in a non-initial start-stop period of the variable frequency compressor, when the operating frequency of the variable frequency compressor before stopping in a previous start-stop period is the first preset operating frequency, determining that the operating frequency of the variable frequency compressor after starting in the current start-stop period is the first preset operating frequency;
In a non-first start-stop period of the variable frequency compressor, when the operation frequency of the variable frequency compressor before stopping in a previous start-stop period is larger than or equal to the second preset operation frequency, acquiring the start rate of the previous start-stop period of the variable frequency compressor, and the operation time length of which the operation frequency is larger than the second preset operation frequency in the previous start-stop period as a first operation time length;
if the starting rate is greater than a preset starting rate threshold value and the first operation time length is greater than a preset first operation time length threshold value, determining that the operation frequency of the variable frequency compressor after being started in the current starting and stopping period is the operation frequency of the variable frequency compressor before being stopped in the previous starting and stopping period;
and if the starting rate is smaller than or equal to the preset starting rate threshold value or the first operation duration is smaller than or equal to the preset first operation duration threshold value, determining the operation frequency of the variable frequency compressor after being started under the current starting and stopping period to be the first preset operation frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645659.9A CN114279142B (en) | 2021-12-29 | 2021-12-29 | Refrigerator, variable frequency compressor system and control method of variable frequency compressor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111645659.9A CN114279142B (en) | 2021-12-29 | 2021-12-29 | Refrigerator, variable frequency compressor system and control method of variable frequency compressor system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114279142A CN114279142A (en) | 2022-04-05 |
| CN114279142B true CN114279142B (en) | 2023-11-14 |
Family
ID=80878508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111645659.9A Active CN114279142B (en) | 2021-12-29 | 2021-12-29 | Refrigerator, variable frequency compressor system and control method of variable frequency compressor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114279142B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776234A (en) * | 2014-02-25 | 2014-05-07 | 合肥美菱股份有限公司 | Refrigerator frequency conversion control method and application thereof |
| CN104154703A (en) * | 2014-07-22 | 2014-11-19 | 海信容声(广东)冰箱有限公司 | Frequency control method for a variable frequency refrigerator |
| CN105276914A (en) * | 2015-04-24 | 2016-01-27 | Tcl智能科技（合肥）有限公司 | Control method for frequency conversion compressor and refrigerator |
| CN105928316A (en) * | 2016-04-29 | 2016-09-07 | 合肥华凌股份有限公司 | Control method and system of inverter compressor, and refrigerator |
| CN108195133A (en) * | 2017-12-29 | 2018-06-22 | Tcl家用电器（合肥）有限公司 | A kind of refrigerator and its control method, control device |
| CN108626935A (en) * | 2018-05-18 | 2018-10-09 | 青岛海尔股份有限公司 | Refrigerator and its compressor frequency control method |
| CN108759290A (en) * | 2018-06-07 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of frequency conversion refrigerator compressor frequency control method |
| WO2021004486A1 (en) * | 2019-07-09 | 2021-01-14 | 青岛海尔空调器有限总公司 | Air conditioning device control method and air conditioning device |
| WO2021218348A1 (en) * | 2020-06-18 | 2021-11-04 | 青岛海尔电冰箱有限公司 | Method and apparatus for controlling multiple online refrigerators |
-
2021
- 2021-12-29 CN CN202111645659.9A patent/CN114279142B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776234A (en) * | 2014-02-25 | 2014-05-07 | 合肥美菱股份有限公司 | Refrigerator frequency conversion control method and application thereof |
| CN104154703A (en) * | 2014-07-22 | 2014-11-19 | 海信容声(广东)冰箱有限公司 | Frequency control method for a variable frequency refrigerator |
| CN105276914A (en) * | 2015-04-24 | 2016-01-27 | Tcl智能科技（合肥）有限公司 | Control method for frequency conversion compressor and refrigerator |
| CN105928316A (en) * | 2016-04-29 | 2016-09-07 | 合肥华凌股份有限公司 | Control method and system of inverter compressor, and refrigerator |
| CN108195133A (en) * | 2017-12-29 | 2018-06-22 | Tcl家用电器（合肥）有限公司 | A kind of refrigerator and its control method, control device |
| CN108626935A (en) * | 2018-05-18 | 2018-10-09 | 青岛海尔股份有限公司 | Refrigerator and its compressor frequency control method |
| CN108759290A (en) * | 2018-06-07 | 2018-11-06 | 长虹美菱股份有限公司 | A kind of frequency conversion refrigerator compressor frequency control method |
| WO2021004486A1 (en) * | 2019-07-09 | 2021-01-14 | 青岛海尔空调器有限总公司 | Air conditioning device control method and air conditioning device |
| WO2021218348A1 (en) * | 2020-06-18 | 2021-11-04 | 青岛海尔电冰箱有限公司 | Method and apparatus for controlling multiple online refrigerators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114279142A (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10544972B2 (en) | Refrigerator and control method therefor | |
| CN106482441B (en) | Refrigeration equipment working method and refrigeration equipment | |
| CN107606871B (en) | Control method and device of variable frequency refrigerator and variable frequency refrigerator | |
| CN110749150B (en) | Rotating speed control system and method of refrigerating fan | |
| CN108151433B (en) | Temperature control method, temperature control device, refrigeration equipment and readable storage medium | |
| EP1714095B1 (en) | Heater cycling for improved oil return | |
| CN113915827A (en) | Rotating speed control method for refrigerator and variable frequency compressor | |
| CN105318646A (en) | Refrigeration control method and device for inverter refrigerator and inverter refrigerator | |
| KR102136415B1 (en) | control method of refrigerator | |
| US11549736B2 (en) | Refrigerator having a cold air supply means and control method therefore | |
| KR101517248B1 (en) | Control method for refrigerator | |
| KR20110087465A (en) | A refrigerator and a control method the same | |
| CN114485032A (en) | Refrigerator and control method thereof | |
| CN114279142B (en) | Refrigerator, variable frequency compressor system and control method of variable frequency compressor system | |
| CN115435544B (en) | Refrigerator and variable frequency control method thereof | |
| CN114353428A (en) | Control method for energy-saving refrigeration of refrigerator | |
| CN114777379A (en) | Refrigerator and refrigerator control method | |
| CN108626935B (en) | Refrigerator and compressor frequency control method thereof | |
| CN2685781Y (en) | Automatic quick-freezing refrigerator | |
| CN109297230B (en) | Refrigeration equipment working method and refrigeration equipment | |
| CN114646167B (en) | Refrigerator and control method of variable frequency compressor of refrigerator | |
| CN111238152B (en) | Fan control method and controller based on working coefficient of fixed-frequency compressor | |
| CN110906658A (en) | Food non-freezing storage control method and refrigerator | |
| KR20130130517A (en) | Method for driving control of comprressor in refrigerator | |
| CN107763960B (en) | Control method and control device of refrigeration mode, refrigeration equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |