CN109974392B - Control method and control device of refrigerator - Google Patents
Control method and control device of refrigerator Download PDFInfo
- Publication number
- CN109974392B CN109974392B CN201910291231.5A CN201910291231A CN109974392B CN 109974392 B CN109974392 B CN 109974392B CN 201910291231 A CN201910291231 A CN 201910291231A CN 109974392 B CN109974392 B CN 109974392B
- Authority
- CN
- China
- Prior art keywords
- temperature
- refrigerator
- temperature difference
- regulation rule
- refrigerant
- 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
Images
Classifications
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a control method and a control device of a refrigerator, wherein a refrigerating system of the refrigerator at least comprises a compressor, a condenser, a drying filter, a capillary tube and an evaporator which are sequentially connected; the control method comprises the following steps: acquiring the ambient temperature of the area where the refrigerator is located; acquiring the temperature of the refrigerant on the inlet side of the dry filter; calculating a temperature difference between the temperature of the refrigerant and the ambient temperature; and adjusting the rotating speed of the compressor based on the environment temperature and the temperature difference. The control method of the refrigerator can adjust the pressure of the refrigeration cycle system of the refrigerator, avoid the problems of non-refrigeration and poor refrigeration of the refrigerator caused by the fact that the refrigerator is close to a heat source, and realize the normal refrigeration cycle of the refrigerator.
Description
Technical Field
The invention relates to the technical field of cold storage and freezing devices, in particular to a control method and a control device of a refrigerator.
Background
At present, refrigerators sold in the market mainly control the rotation speed of a compressor by detecting the ambient temperature of the refrigerator. When the side plate of the refrigerator is close to the heat source, the temperature of the refrigerant flowing through the side plate can be increased, but because the change of the ambient temperature of the refrigerator is not obvious, the compressor still operates at a lower rotating speed, the pressure of the system is low, so that the vapor of the refrigerant can not be condensed normally, and the problems of refrigeration system paralysis and refrigeration failure of the refrigerator occur.
Disclosure of Invention
An object of the present invention is to provide a method for controlling a refrigerator with more accurate adjustment of the rotational speed of a compressor.
A further object of the present invention is to avoid the problems of non-cooling and poor cooling of the refrigerator caused by the proximity of the refrigerator to the heat source.
Particularly, the invention provides a control method of a refrigerator, wherein a refrigerating system of the refrigerator at least comprises a compressor, a condenser, a drying filter, a capillary tube and an evaporator which are sequentially connected; the control method comprises the following steps:
acquiring the ambient temperature of an area where a refrigerator is located;
acquiring the temperature of the refrigerant on the inlet side of the drying filter;
calculating a temperature difference between the temperature of the refrigerant and the ambient temperature;
and adjusting the rotating speed of the compressor based on the ambient temperature and the temperature difference.
Optionally, the step of adjusting the rotation speed of the compressor based on the ambient temperature and the temperature difference comprises:
determining a rotating speed regulation rule corresponding to the environment temperature and the temperature difference according to a preset mapping relation, and determining the rotating speed of the compressor according to the rotating speed regulation rule, wherein
The mapping relation stipulates a rotating speed regulation rule corresponding to an environmental temperature numerical range and a temperature difference numerical range; the speed regulation rules include a first regulation rule specifying a speed of the compressor corresponding to a numerical range of ambient temperature and a second regulation rule specifying a speed of the compressor corresponding to a numerical range of refrigerant temperature.
Optionally, the step of determining a corresponding rotation speed regulation rule according to the mapping relationship and determining the rotation speed of the compressor according to the rotation speed regulation rule includes:
determining an environment temperature numerical range to which the environment temperature belongs;
determining the numerical range of the temperature difference to which the temperature difference belongs;
inquiring and determining a corresponding rotating speed regulation rule according to the determined environmental temperature numerical range and the temperature difference numerical range;
when the first regulation rule corresponds to, determining the rotating speed of the compressor according to the determined environment temperature numerical range;
when corresponding to the second adjustment rule:
determining a refrigerant temperature value range to which the temperature of the refrigerant belongs, and
and determining the rotation speed of the compressor according to the determined numerical range of the temperature of the refrigerant.
Optionally, the temperature difference value range is set to have a first temperature difference interval not greater than a preset temperature difference threshold value and a second temperature difference interval greater than the preset temperature difference threshold value;
the step of inquiring and determining the corresponding rotating speed regulation rule according to the determined environment temperature numerical range and the temperature difference numerical range comprises the following steps:
judging whether the temperature difference belongs to a first temperature interval or a second temperature interval;
when the temperature difference belongs to a first temperature difference interval, determining a first regulation rule as a rotation speed regulation rule;
and when the temperature difference belongs to a second temperature difference interval, determining a second regulation rule as a rotation speed regulation rule.
Optionally, the temperature difference value range is set as: the temperature intervals of the temperature difference value ranges corresponding to the different environment temperature value ranges have different preset temperature difference threshold values.
Optionally, in the mapping relationship, the environment temperature range is continuously divided into a plurality of environment temperature intervals according to the temperature; and is
Along with the increase of the environment temperature interval, the preset temperature difference threshold value of the temperature interval of the temperature difference numerical range is increased.
Alternatively, the first adjustment rule is set to have a plurality of ambient temperature sections in the same mapping relationship.
Optionally, the refrigerant temperature value range is continuously divided into a plurality of refrigerant temperature intervals according to the temperature;
the second regulation rule is set to: the rotating speed value of the compressor is increased along with the increase of the temperature interval of the refrigerant.
Optionally, the condenser comprises a bottom condenser arranged at the bottom of the refrigerator body and a back condenser arranged on the rear wall plate of the refrigerator body; the outlet of the compressor is connected with a bottom condenser, the dew removing pipe, the back condenser, the drying filter, the capillary tube, the evaporator and the air return pipe are sequentially connected, and the outlet of the air return pipe is connected with the inlet of the compressor;
acquiring the temperature of the refrigerant at the inlet side of the dry filter includes: and acquiring the value measured by a second temperature sensor arranged on a pipeline between the back condenser and the drying filter to obtain the temperature of the refrigerant.
The present invention also provides a control apparatus of a refrigerator, comprising: a controller and a memory, in which a computer program is stored and which, when executed, causes the controller to perform the aforementioned control method.
According to the control method of the refrigerator, the ambient temperature of the area where the refrigerator is located and the temperature of the refrigerant on the inlet side of the drying filter are obtained, the temperature difference between the temperature of the refrigerant and the ambient temperature is calculated, then the rotating speed of the compressor is adjusted based on the ambient temperature and the temperature difference, the pressure of the refrigeration cycle system of the refrigerator is adjusted, the problems that the refrigerator does not refrigerate and refrigerates poorly due to the fact that the refrigerator is close to a heat source are avoided, and normal refrigeration cycle of the refrigerator is achieved.
Further, the control method of the refrigerator firstly determines an environment temperature numerical range to which the environment temperature belongs and a temperature difference numerical range to which the temperature difference belongs, and then inquires and determines a corresponding rotating speed regulation rule according to the determined environment temperature numerical range and the determined temperature difference numerical range, wherein the rotating speed regulation rule comprises a first regulation rule and a second regulation rule, so that the rotating speed of the compressor of the refrigerator is regulated in different environment temperature numerical ranges and different temperature difference numerical ranges according to different rotating speed regulation rules, and the control of the compressor of the refrigerator is more accurate.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic side view of a refrigerator according to one embodiment of the present invention.
Fig. 2 is a schematic view of a refrigeration system of a refrigerator according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.
Fig. 4 is a schematic block diagram of a control apparatus of a refrigerator according to one embodiment of the present invention.
Fig. 5 is a flowchart illustrating a control method of a refrigerator according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic side view of a refrigerator 100 according to one embodiment of the present invention. The refrigerator 100 of the embodiment of the present invention generally includes: a cabinet 110 and a refrigeration system. A storage compartment is defined inside the cabinet 110 of the refrigerator 100. The quantity and the structure of storing compartment can dispose according to the demand. For example, fig. 1 shows a case where a first storage compartment, a second storage compartment and a third storage compartment are sequentially disposed from top to bottom, wherein the first storage compartment is a rotary-opening-type door 120 disposed on a front surface of a cabinet 110 for closing the first storage compartment; the second storage compartment and the third storage compartment are provided with a first drawing storage device 130 and a second drawing storage device 140 which can be drawn in the storage compartments. The storage chamber can be configured into a refrigerating chamber, a freezing chamber, a temperature changing chamber or a fresh-keeping chamber according to different purposes. Each storage compartment may be divided into a plurality of storage regions by a partition plate. The refrigerator 100 according to the embodiment of the present invention may be a typical french refrigerator, and the three compartments sequentially disposed up and down are a refrigerating compartment, a freezing compartment, and a freezing compartment, respectively. Handles may be provided on each door panel of the refrigerator 100 according to the embodiment of the present invention, so that a user can open and close the storage compartment of the refrigerator 100.
Fig. 2 is a schematic diagram of a refrigeration system of the refrigerator 100 according to one embodiment of the present invention. The refrigeration system of the refrigerator 100 according to the embodiment of the present invention includes a compressor 201, a condenser, a dew-removing pipe 203, a dry filter 205, a capillary tube 206, an evaporator 207, and a return air pipe 208. The condenser comprises a bottom condenser 202 and an overhead condenser 204. The bottom condenser 202 is disposed within a press compartment at the bottom of the tank 110, typically on the upper or lower surface of the floor. The bottom condenser 202 is a coil condenser or a coil condenser, is arranged at the adjacent side of the compressor 201, and can be provided with a partition plate between the compressor 201 and the bottom condenser, so that the bottom condenser and the compressor 201 are positioned in two different chambers in a compressor cabin; or no partition is installed so that it is in the same press compartment as the compressor 201. The back condenser 204 is disposed at the rear wall of the box body 110, and is in a square shape and attached to the edge of the rear wall. The compressor 201, the bottom condenser 202, the dew-removing pipe 203, the back condenser 204, the dry filter 205, the capillary tube 206, the evaporator 207, the air return pipe 208, and the compressor 201 are connected in sequence to form a closed path of a refrigeration cycle of the refrigerator 100 according to the embodiment of the present invention. Refrigerant compressed by the compressor 201 enters the bottom condenser 202 to exchange heat with air, the cooled refrigerant enters the dew removing pipe 203 to remove dew, the dew is removed and enters the back condenser 204 to exchange heat with air, and then enters the drying filter 205 to be connected with the inlet of the freezing evaporator 207 through the capillary tube 206, and the air return pipe 208 is connected between the outlet of the freezing evaporator 207 and the compressor 201. In addition, a plurality of ventilation grids are arranged on the bottom plate of the box body 110, and a heat radiation fan is arranged in the press cabin to achieve the effect of forced ventilation and heat radiation on the bottom condenser 202.
In the prior art, when the refrigerator 100 is placed close to a heat source, the temperature of the refrigerant flowing through the back condenser 204 is increased, but because the change of the ambient temperature of the refrigerator 100 is not obvious, the compressor 201 still operates at a low rotation speed, and the pressure of the system is low, so that the refrigerant vapor cannot be normally condensed, and the problems of refrigeration system paralysis and no refrigeration of the refrigerator 100 occur. In order to implement a normal refrigeration cycle of the refrigerator 100, an embodiment of the present invention provides a control method of the refrigerator 100. Fig. 3 is a flowchart illustrating a control method of the refrigerator 100 according to an embodiment of the present invention. The control method of the refrigerator 100 according to the embodiment of the present invention includes the steps of:
s302: acquiring the ambient temperature of the area where the refrigerator 100 is located;
s304: acquiring the temperature of the refrigerant on the inlet side of the dry filter 205;
s306: calculating a temperature difference between the temperature of the refrigerant and the ambient temperature;
s308: and adjusting the rotating speed of the compressor based on the ambient temperature and the temperature difference.
According to the control method of the refrigerator 100, provided by the embodiment of the invention, the ambient temperature of the area where the refrigerator 100 is located and the temperature of the refrigerant on the inlet side of the drying filter 205 are obtained, the temperature difference between the temperature of the refrigerant and the ambient temperature is calculated, then the rotating speed of the compressor 201 is adjusted based on the ambient temperature and the temperature difference, so that the pressure of the refrigeration cycle system of the refrigerator 100 is adjusted, the problems of no refrigeration and poor refrigeration of the refrigerator 100 caused by the fact that the refrigerator 100 is close to a heat source are avoided, and the normal refrigeration cycle of the refrigerator 100 is realized.
Fig. 4 is a schematic block diagram of a control apparatus 400 of the refrigerator 100 according to one embodiment of the present invention. The control device 400 of the refrigerator 100 according to the embodiment of the present invention includes: a controller 401 and a memory 402, a computer program 420 being stored in the memory 402 and the computer program 420 being run such that the controller 401 executes the aforementioned control method.
In some embodiments, the step of adjusting the rotation speed of the compressor 201 based on the ambient temperature and the temperature difference of the control method of the refrigerator 100 of the embodiment of the present invention includes:
determining a rotating speed regulation rule corresponding to the environment temperature and the temperature difference according to a preset mapping relation, and determining the rotating speed of the compressor according to the rotating speed regulation rule, wherein
The mapping relation stipulates a rotating speed regulation rule corresponding to an environmental temperature numerical range and a temperature difference numerical range; the speed regulation rules include a first regulation rule specifying a speed of the compressor corresponding to a numerical range of ambient temperature and a second regulation rule specifying a speed of the compressor corresponding to a numerical range of refrigerant temperature.
In some embodiments, the obtaining of the ambient temperature of the area where the refrigerator 100 is located by the control method of the refrigerator 100 according to the embodiment of the present invention includes: the values measured by the plurality of first temperature sensors 150 arranged at different positions on the outer casing of the refrigerator 100 are obtained, and the values are subjected to fusion calculation to obtain the ambient temperature. In addition, after the values measured by the plurality of first temperature sensors 150 at different positions are obtained, the first temperature sensor 150 with the excessively large value deviation can be identified and reminded to eliminate the error as much as possible.
In some embodiments, the obtaining of the temperature of the refrigerant of the inlet side of the dry filter 205 of the control method of the refrigerator 100 of the embodiment of the present invention includes: the value measured by the second temperature sensor 250 arranged on the line between the postback condenser 204 and the filter-drier 205 is obtained, and the temperature of the refrigerant is obtained.
In some embodiments, the step of determining the corresponding rotation speed adjustment rule according to the mapping relationship and determining the rotation speed of the compressor according to the rotation speed adjustment rule in the control method of the refrigerator 100 according to the embodiment of the present invention includes:
determining an environment temperature numerical range to which the environment temperature belongs;
determining the numerical range of the temperature difference to which the temperature difference belongs;
inquiring and determining a corresponding rotating speed regulation rule according to the determined environmental temperature numerical range and the temperature difference numerical range;
when the first regulation rule corresponds to, determining the rotating speed of the compressor according to the determined environment temperature numerical range;
when corresponding to the second adjustment rule:
determining a refrigerant temperature value range to which the temperature of the refrigerant belongs, and
and determining the rotation speed of the compressor according to the determined numerical range of the temperature of the refrigerant.
In some embodiments, the temperature difference value range of the control method of the refrigerator 100 of the embodiment of the present invention is set to have a first temperature difference section not greater than a preset temperature difference threshold value and a second temperature difference section greater than the preset temperature difference threshold value;
the step of inquiring and determining the corresponding rotating speed regulation rule according to the determined environment temperature numerical range and the temperature difference numerical range comprises the following steps:
judging whether the temperature difference belongs to a first temperature interval or a second temperature interval;
when the temperature difference belongs to a first temperature difference interval, determining a first regulation rule as a rotation speed regulation rule;
and when the temperature difference belongs to a second temperature difference interval, determining a second regulation rule as a rotation speed regulation rule.
In some preferred embodiments, the temperature difference value range of the control method of the refrigerator 100 of the embodiment of the present invention is set as follows: the temperature intervals of the temperature difference value ranges corresponding to the different environment temperature value ranges have different preset temperature difference threshold values. In some more preferred embodiments, the mapping relationship is that the environmental temperature value range is divided into a plurality of environmental temperature intervals according to the temperature level; and along with the increase of the environment temperature interval, the preset temperature difference threshold value of the temperature interval in the temperature difference value range is increased.
In some embodiments, the first regulation rule of the control method of the refrigerator 100 of the embodiment of the present invention is set to have a plurality of ambient temperature intervals that are the same as the mapping relationship.
In some embodiments, the refrigerant temperature range of the control method of the refrigerator 100 according to the embodiment of the present invention is continuously divided into a plurality of refrigerant temperature sections according to the temperature; the second regulation rule is set to: as the refrigerant temperature interval increases, the rotation speed value of the compressor 201 increases.
Fig. 5 is a flowchart illustrating a control method of the refrigerator 100 according to an embodiment of the present invention. The control method of the refrigerator 100 according to the embodiment of the present invention includes the steps of:
s502: acquiring the ambient temperature of the area where the refrigerator 100 is located;
s504: acquiring the temperature of the refrigerant on the inlet side of the dry filter 205;
s506: calculating a temperature difference between the temperature of the refrigerant and the ambient temperature;
s508: determining an environment temperature numerical range to which the environment temperature belongs;
s510: inquiring and determining a corresponding temperature difference interval according to the determined environmental temperature numerical range;
s512: judging whether the calculated temperature difference belongs to a first temperature interval or a second temperature interval;
when the judgment result of the step S512 is that the temperature difference belongs to the first temperature interval, executing the steps of:
s514: determining a first regulation rule as a rotation speed regulation rule;
s516: according to the first regulation rule, determining the rotating speed value of the compressor 201 according to the environment temperature value range determined in the step S508;
s522: the compressor 201 of the refrigerator 100 is controlled to operate according to the determined rotation speed value.
When the judgment result of the step S512 is that the temperature difference belongs to the second temperature interval, executing the steps of:
s518: determining a second regulation rule as a rotation speed regulation rule;
s520: determining the rotating speed value of the compressor 201 according to a second regulation rule; specifically, a refrigerant temperature numerical range to which the temperature of the refrigerant obtained in step S504 belongs is determined, and then the rotation speed value of the compressor 201 is determined according to the determined refrigerant temperature numerical range;
s522: the compressor 201 of the refrigerator 100 is controlled to operate according to the determined rotation speed value.
The control method of the refrigerator 100 in the embodiment of the invention has simple control steps and few required components, only needs to add the second temperature sensor 250 in the existing refrigerator 100, has small investment and obvious improvement effect.
The mapping relationship, the first adjustment rule, and the second adjustment rule of the refrigerator 100 according to the embodiment of the present invention will be exemplarily described in detail below.
TABLE 1 mapping relationship of ambient temperature-temperature difference-rotation speed regulation rule
In table 1, T represents an ambient temperature of an area where the refrigerator 100 is located, and Δ T represents a difference between a temperature of the refrigerant and the ambient temperature. Table 1 is a mapping table of the ambient temperature-temperature difference-rotation speed adjustment rule. The environmental temperature range is continuously divided into a plurality of environmental temperature intervals (T1, T2, … Tx and … Tn) according to the temperature. Different environment temperature intervals correspond to different temperature difference intervals, and each temperature difference interval is divided into a first temperature difference interval and a second temperature difference interval according to a preset temperature difference threshold value. For example, the temperature difference interval of T1 includes a first temperature difference interval where Δ T ≦ a first preset temperature difference threshold, and a second temperature difference interval where Δ T > the first preset temperature difference threshold. As another example, the temperature difference interval for Tx includes a first temperature difference interval where Δ T is less than or equal to the xth preset temperature difference threshold, and a second temperature difference interval where Δ T is greater than the xth preset temperature difference threshold. Along with the increase of the environmental temperature interval, the preset temperature difference threshold value of the temperature difference numerical range is increased, and the x-th preset temperature difference threshold value is larger than the second preset temperature difference threshold value and larger than the first preset temperature difference threshold value.
TABLE 2 first Regulation rules
| Ambient temperature | Speed of compressor |
| T1 | NT1 |
| T2 | NT2 |
| Tx | NTx |
| Tn | NTn |
Table 2 is a schematic table of the first adjustment rule; in the table, N represents the rotation speed value of the compressor 201. The first adjustment rule is set to: different ambient temperature intervals correspond to different compressor rotation speeds. Here, the ambient temperature interval of the first regulation rule generally coincides with the ambient temperature interval in table 1, and for example, as shown in the above table, T1, T2, … Tx, … Tn are also included. It should be understood, however, that in some embodiments, the first regulation rule may have a different ambient temperature interval than table 1.
TABLE 3 second Regulation rule
| Temperature of refrigerant | Speed of compressor |
| t1 | Nt1 |
| t2 | Nt2 |
| tx | Ntx |
| tn | Ntn |
Table 3 is a schematic table of the second adjustment rule; in the table, N represents the rotation speed value of the compressor 201. The refrigerant temperature range is continuously divided into a plurality of refrigerant temperature sections (t1, t2, … tx, … tn) according to the temperature. The second regulation rule is set to: as the refrigerant temperature interval increases, the rotation speed value of the compressor 201 increases.
As can be seen from tables 2 and 3, in the same ambient temperature range, when the temperature difference is not greater than the preset temperature difference threshold, the rotational speed of the compressor is controlled with reference to the ambient temperature, and when the temperature difference is greater than the preset temperature difference threshold, the rotational speed of the compressor is controlled with reference to the temperature of the refrigerant.
For example, in table 1, the environmental temperature interval T1 is set to be less than or equal to 20 ℃, and the first preset temperature difference threshold is set to be 5 ℃; the environmental temperature range is more than 20 ℃ and less than or equal to 32 ℃ in T2, and the second preset temperature difference threshold is 8 ℃; the environmental temperature range is that T3 is more than 32 ℃ and less than or equal to 40 ℃, and the third preset temperature difference threshold is 10 ℃; the environmental temperature interval T4 is more than 40 ℃, and the fourth preset temperature difference threshold is 12 ℃. In the first regulation rule of Table 2, NT1 is 1600 rpm when the ambient temperature interval T1 is less than or equal to 20 ℃; when the environmental temperature is between 20 ℃ and T2 and is not more than 32 ℃, NT2 is 1600 revolutions per minute; when the environmental temperature is within the range of 32 ℃ to less than T3 and less than or equal to 40 ℃, NT3 is 3000 r/min; NT4 was 3400 revolutions per minute at an ambient temperature interval T4 > 40 ℃. In the second regulation rule of Table 3, when the refrigerant temperature interval t1 is not more than 25 ℃, Nt1 is 2700 rpm; when the temperature of the refrigerant is within the range of 25 ℃ to t2 and is less than or equal to 40 ℃, Nt2 is 3400 rpm; when the temperature of the refrigerant is within the range of 40 ℃ to t3 and is less than or equal to 50 ℃, Nt3 is 3800 revolutions per minute; when the refrigerant temperature interval t4 is more than 50 ℃, Nt4 is 4300 revolutions per minute.
The following exemplarily shows specific control steps of the control method of the refrigerator 100 of the embodiment of the present invention:
acquiring the ambient temperature of the area where the refrigerator 100 is located, wherein the ambient temperature is 15 ℃;
the temperature of the refrigerant on the inlet side of the dry filter 205 was taken to be 21 ℃;
calculating the temperature difference between the temperature of the refrigerant and the ambient temperature, wherein delta T is 6 ℃;
determining the numerical range of the environment temperature to which the environment temperature belongs, wherein the numerical range is an environment temperature interval T1;
inquiring and determining a corresponding temperature difference interval according to the determined environmental temperature numerical range, wherein the temperature difference interval is a temperature difference interval with a preset temperature difference threshold value of 5 ℃;
judging that the temperature difference belongs to a second temperature interval when the temperature is higher than 6 ℃ and higher than 5 ℃;
determining a second regulation rule as a rotation speed regulation rule;
the temperature is less than or equal to 25 ℃, the temperature belongs to a refrigerant temperature interval t1, and the corresponding rotating speed value Nt1 of the compressor 201 is 2700 revolutions per minute;
the compressor 201 of the refrigerator 100 is controlled to be operated at the determined rotation speed value of 2700 rpm.
The following again exemplifies the specific control steps of the control method of the refrigerator 100 according to the embodiment of the present invention:
acquiring the ambient temperature of the area where the refrigerator 100 is located, wherein the ambient temperature is 42 ℃;
the temperature of the refrigerant on the inlet side of the dry filter 205 was taken to be 53 ℃;
calculating the temperature difference between the temperature of the refrigerant and the ambient temperature, wherein delta T is 11 ℃;
determining the numerical range of the environment temperature to which the environment temperature belongs, wherein the numerical range is an environment temperature interval T4;
inquiring and determining a corresponding temperature difference interval according to the determined environmental temperature numerical range, wherein the temperature difference interval is a temperature difference interval with a preset temperature difference threshold value of 12 ℃;
judging that the temperature difference belongs to a first temperature interval when the temperature is less than 11 ℃ and less than 12 ℃;
determining a first regulation rule as a rotation speed regulation rule;
the temperature of 45 ℃ is more than 40 ℃, the temperature belongs to an environment temperature interval T4, and the corresponding rotating speed value NT4 of the compressor 201 is 3400 r/min;
the compressor 201 of the refrigerator 100 is controlled to operate at the determined rotation speed value of 3400 rpm.
The control method of the refrigerator 100 according to the embodiment of the present invention obtains the ambient temperature of the area where the refrigerator 100 is located and the temperature of the refrigerant on the inlet side of the filter drier 205, calculates the temperature difference between the temperature of the refrigerant and the ambient temperature, and then adjusts the rotation speed of the compressor 201 of the refrigerator 100 based on the ambient temperature and the temperature difference, thereby adjusting the pressure of the refrigeration cycle system of the refrigerator 100, avoiding the problems of non-refrigeration and poor refrigeration of the refrigerator 100 caused by the approach of the refrigerator 100 to a heat source, and realizing the normal refrigeration cycle of the refrigerator 100.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. A control method of a refrigerator is characterized in that a refrigerating system of the refrigerator at least comprises a compressor, a condenser, a dry filter, a capillary tube and an evaporator which are sequentially connected; the control method comprises the following steps:
acquiring the ambient temperature of the area where the refrigerator is located;
acquiring the temperature of the refrigerant on the inlet side of the dry filter;
calculating a temperature difference between the temperature of the refrigerant and the ambient temperature;
adjusting the rotation speed of the compressor based on the ambient temperature and the temperature difference;
the step of adjusting the rotational speed of the compressor based on the ambient temperature and the temperature difference includes:
determining a rotating speed regulation rule corresponding to the environment temperature and the temperature difference according to a preset mapping relation, and determining the rotating speed of the compressor according to the rotating speed regulation rule, wherein the rotating speed regulation rule comprises a preset value
The mapping relation stipulates the rotating speed regulation rule corresponding to an environmental temperature numerical range and a temperature difference numerical range; the rotating speed regulation rule comprises a first regulation rule and a second regulation rule, the first regulation rule specifies the rotating speed of the compressor corresponding to the numerical range of the ambient temperature, and the second regulation rule specifies the rotating speed of the compressor corresponding to the numerical range of the refrigerant temperature;
the steps of determining a corresponding rotating speed regulation rule according to the mapping relation and determining the rotating speed of the compressor according to the rotating speed regulation rule comprise:
determining an environment temperature numerical range to which the environment temperature belongs;
determining a temperature difference numerical range to which the temperature difference belongs;
inquiring and determining the corresponding rotating speed regulation rule according to the determined environment temperature numerical range and the temperature difference numerical range;
when the first regulation rule corresponds to, determining the rotating speed of the compressor according to the determined environment temperature numerical range;
when corresponding to the second adjustment rule:
determining a refrigerant temperature value range to which the temperature of the refrigerant belongs, and
and determining the rotation speed of the compressor according to the determined numerical range of the temperature of the refrigerant.
2. The control method of the refrigerator according to claim 1, wherein
The temperature difference value range is set to have a first temperature difference interval not greater than a preset temperature difference threshold value and a second temperature difference interval greater than the preset temperature difference threshold value;
the step of inquiring and determining the corresponding rotating speed regulation rule according to the determined environment temperature numerical range and the temperature difference numerical range comprises the following steps:
judging whether the temperature difference belongs to a first temperature interval or a second temperature interval;
when the temperature difference belongs to the first temperature difference interval, determining the first regulation rule as the rotation speed regulation rule;
and when the temperature difference belongs to the second temperature difference interval, determining the second regulation rule as the rotating speed regulation rule.
3. The control method of the refrigerator according to claim 2, wherein
The temperature difference value range is set as follows: different the temperature range corresponding to the environmental temperature range has different preset temperature threshold.
4. The control method of the refrigerator according to claim 3, wherein
In the mapping relation, the environment temperature numerical range is continuously divided into a plurality of environment temperature intervals according to the temperature; and is
Along with the increase of the environment temperature interval, the preset temperature difference threshold value of the temperature interval of the temperature difference numerical range is increased.
5. The control method of the refrigerator according to claim 4, wherein
The first regulation rule is set to have the plurality of ambient temperature sections that are the same as the mapping relation.
6. The control method of the refrigerator according to claim 1, wherein
The refrigerant temperature numerical range is continuously divided into a plurality of refrigerant temperature intervals according to the temperature;
the second adjustment rule is set to: and the rotating speed value of the compressor is increased along with the increase of the temperature interval of the refrigerant.
7. The control method of the refrigerator according to claim 1, wherein
The condenser comprises a bottom condenser arranged at the bottom of the refrigerator body and a back condenser arranged on the rear wall plate of the refrigerator body; the outlet of the compressor is connected with the bottom condenser, the dew removing pipe, the back condenser, the drying filter, the capillary tube, the evaporator and the air return pipe are sequentially connected, and the outlet of the air return pipe is connected with the inlet of the compressor;
acquiring the temperature of the refrigerant at the inlet side of the dry filter includes: and acquiring the value measured by a second temperature sensor arranged on a pipeline between the back condenser and the drying filter to obtain the temperature of the refrigerant.
8. A control apparatus of a refrigerator, comprising:
a controller and a memory, the memory having stored therein a computer program and the computer program being executed to cause the controller to perform the control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291231.5A CN109974392B (en) | 2019-04-11 | 2019-04-11 | Control method and control device of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291231.5A CN109974392B (en) | 2019-04-11 | 2019-04-11 | Control method and control device of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109974392A CN109974392A (en) | 2019-07-05 |
| CN109974392B true CN109974392B (en) | 2020-11-20 |
Family
ID=67084222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910291231.5A Active CN109974392B (en) | 2019-04-11 | 2019-04-11 | Control method and control device of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109974392B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425787A (en) * | 2019-07-10 | 2019-11-08 | 广东铁峰信息技术有限公司 | Use for electric locomotive intelligent thermoregulating cold storage plant and its method for regulating temperature |
| CN113531932A (en) * | 2021-03-22 | 2021-10-22 | 青岛海尔特种电冰柜有限公司 | Binary mixed working medium refrigerating system, refrigerating cabinet and control method of refrigerating cabinet |
| CN115265048B (en) * | 2021-04-29 | 2023-08-15 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN113899124B (en) * | 2021-10-12 | 2022-06-14 | 珠海格力电器股份有限公司 | Pressure regulation control method and device, electronic equipment and refrigeration equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516710C (en) * | 2003-06-27 | 2009-07-22 | 松下电器产业株式会社 | Cold-storage unit and refrigerator |
| JP2011112265A (en) * | 2009-11-25 | 2011-06-09 | Daikin Industries Ltd | Refrigeration unit for container |
| CN103032933B (en) * | 2011-09-30 | 2016-10-05 | 珠海格力电器股份有限公司 | The relative moisture control method of transducer air conditioning and device |
| KR20170132938A (en) * | 2016-05-24 | 2017-12-05 | 주식회사 대유위니아 | Method for controlling cooling of refrigerator |
| CN106247728A (en) * | 2016-07-29 | 2016-12-21 | 合肥华凌股份有限公司 | Control method, control device and refrigerator |
| CN108826822B (en) * | 2018-06-15 | 2020-11-27 | 合肥美的电冰箱有限公司 | Refrigerator control method and refrigerator |
-
2019
- 2019-04-11 CN CN201910291231.5A patent/CN109974392B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109974392A (en) | 2019-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109974392B (en) | Control method and control device of refrigerator | |
| US7908039B2 (en) | Cooling storage cabinet and method of operating the same | |
| CN106403426B (en) | System and method for controlling a chiller and freezer unit to reduce energy consumption | |
| CN110953792B (en) | Refrigerator and control method thereof | |
| CN108885050B (en) | Refrigerator with a door | |
| US8186173B2 (en) | Refrigerator unit and/or freezer unit | |
| KR20080070511A (en) | Refrigerator and operation control method therof | |
| CN109855254A (en) | Air conditioner and its control method | |
| US9328956B2 (en) | Refrigerator control system and method | |
| JP5165391B2 (en) | Cooling storage | |
| CN109855185A (en) | Air conditioner and its dehumidification control method | |
| CN109855184A (en) | Air conditioner and its dehumidification control method | |
| CN106610170B (en) | Air-cooled refrigerator and control method thereof | |
| EP3037750B1 (en) | Refrigerator and a method for controlling the same | |
| CN107810375B (en) | Refrigeration device with air humidity monitoring | |
| JP6366237B2 (en) | refrigerator | |
| CN106369917A (en) | Temperature control method for air-cooled refrigerator and air-cooled refrigerator | |
| CN111609634A (en) | Air-cooled refrigerator and defrosting control method thereof | |
| AU2022200913A1 (en) | Refrigerator and method of controlling the same | |
| CN108061420B (en) | Temperature regulation and control method, temperature regulation and control device, refrigeration equipment and readable storage medium | |
| WO2014163831A1 (en) | Dual evaporator refrigerator appliance and method of operating the same | |
| EP2829812A2 (en) | A refrigeration device and method of operation | |
| JP7138801B2 (en) | refrigeration cycle equipment | |
| KR101620178B1 (en) | A refrigerator and a control method the same | |
| US10429863B2 (en) | Systems and methods for refrigerator control |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: QINGDAO HAIER REFRIGERATOR Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: QINGDAO HAIER REFRIGERATOR Co.,Ltd. Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |