CN115111873A - Method for acquiring slope of temperature change curve, control method and refrigerator - Google Patents
Method for acquiring slope of temperature change curve, control method and refrigerator Download PDFInfo
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- CN115111873A CN115111873A CN202110288743.3A CN202110288743A CN115111873A CN 115111873 A CN115111873 A CN 115111873A CN 202110288743 A CN202110288743 A CN 202110288743A CN 115111873 A CN115111873 A CN 115111873A
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- 230000008859 change Effects 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000005057 refrigeration Methods 0.000 claims description 47
- 230000009471 action Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/06—Stock management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/02—Sensors detecting door opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a method for acquiring the slope of a temperature change curve in a refrigerating chamber before door opening, a control method of a refrigerating device and a refrigerator, wherein the acquiring method comprises the following steps: obtaining a temperature change curve in a refrigerating chamber in a first preset time period before opening a door; acquiring the slope of the indoor temperature change curve of the refrigerating chamber before door opening according to the temperature change curve; is simple and accurate.
Description
Technical Field
The invention relates to the field of refrigerating devices, in particular to a method for acquiring the slope of a temperature change curve in a refrigerating chamber before door opening, a control method of a refrigerating device and a refrigerator.
Background
In the use of refrigerator, the user often can open the door in order to access to eating the material, and the indoor material general temperature of eating of just putting into refrigeration room is higher, if it is refrigerator refrigeration inaccurate or untimely refrigeration, the temperature of the edible material of newly putting into can conduct to other edible materials rather than the contact on, leads to the temperature of the edible material of having stored in the refrigerator to change, causes the nutrition to run off, influences fresh-keeping effect, leads to the taste variation.
Among the prior art, set up the light sense sensor in the refrigerator walk-in to the light intensity of its position of sensing, reflect the use volume judgement of walk-in according to the light intensity and whether have new edible material to put into after opening the door, with the basis as refrigeration control, specifically speaking, if the use volume grow of walk-in, judge that to have new edible material to put into after opening the door, after closing the door, increase the running frequency of compressor in order to increase the air conditioning supply volume in the walk-in, carry out rapid cooling to the edible material of newly putting into, reduce the influence of the edible material of newly putting into to other edible materials, improve the fresh-keeping effect of walk-in. However, the light sensor is arranged inside the refrigerating chamber and is easily shielded by articles in the refrigerating chamber or newly-placed food materials completely or partially, so that the detection result of the light sensor is not accurate enough, the refrigeration of the refrigerator is influenced, and the fresh-keeping effect is influenced.
How to judge whether new food materials are put into the refrigerating chamber in the door opening and closing process and how to accurately acquire the temperature change trend in the refrigerating chamber before the door is opened is a problem to be solved in the field.
In view of the above, it is desirable to provide a new method for obtaining a slope of a temperature change curve in a cooling compartment before opening a door, a method for controlling a cooling device, and a refrigerator to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for acquiring the slope of a temperature change curve in a refrigerating chamber before door opening, a control method of a refrigerating device and a refrigerator.
In order to realize the purpose of the invention, the invention adopts the following technical scheme: a method for obtaining the slope of a temperature change curve in a refrigeration chamber before door opening comprises the following steps:
obtaining a temperature change curve in a refrigerating chamber in a first preset time period before opening a door;
and acquiring the slope of the indoor temperature change curve of the refrigerating chamber before the door is opened according to the temperature change curve.
As a further improved technical scheme of the invention, the step of obtaining the slope of the indoor temperature change curve of the refrigerating chamber before the door is opened according to the temperature change curve comprises the following steps: judging whether the compressor has start-stop action in the first preset time period, if so, taking the slope of the temperature change curve in the refrigerating chamber from the last start-stop point to the door opening point of the compressor as the slope of the temperature change curve in the refrigerating chamber before the door is opened; if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
As a further improved technical scheme of the invention, the step of obtaining the slope of the indoor temperature change curve of the refrigerating chamber before the door is opened according to the temperature change curve comprises the following steps: judging whether the temperature change curve has an inflection point, if so, taking the slope of the temperature change curve in the refrigerating chamber from the time point corresponding to the inflection point to the door opening period as the slope of the temperature change curve in the refrigerating chamber before the door opening; and if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
As a further improved technical solution of the present invention, "judging whether the temperature change curve has an inflection point" specifically includes the following steps: judging the rising and falling trend of the temperature change curve, wherein if the temperature change curve rises first and then falls, the highest point of the temperature change curve is the inflection point; and if the temperature change curve firstly falls and then rises, the lowest point of the temperature change curve is the inflection point.
As a further improved technical scheme of the present invention, "obtaining a temperature change curve in a refrigeration compartment within a first preset time period before door opening" specifically includes:
continuously updating the temperature change curve in the refrigerating chamber within a first preset time period;
acquiring a door opening time point;
and the temperature change curve in the refrigerating chamber in the first preset time period corresponding to the door opening time point is the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened.
The technical scheme of the invention is further improved, and is characterized in that: the first preset time period is 5 min.
In order to achieve the above object, the present invention further provides a control method of a refrigeration apparatus, including the steps of:
the slope of the indoor temperature change curve of the refrigeration chamber before the door is opened is obtained according to the method for obtaining the slope of the indoor temperature change curve of the refrigeration chamber before the door is opened and is recorded as a first slope k 1 ；
Obtaining the slope of the temperature change curve in the refrigerating chamber in a second preset time period after the door is closed, and recording the slope as a second slope k 2 ；
According to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not;
obtaining the door opening time t, and according to the door opening time t and the second slope k 2 The rotational speed of the compressor is controlled.
As a further improvement of the present invention, according to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not specifically comprises the following steps:
judging the state of the compressor when the door is opened, if the compressor is in the starting state, then at k 2 ≥0.8k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜0.8k 1 Judging that no new food materials are put into the refrigerating chamber; if the compressor is in shutdown state, then at k 2 ≥1.2k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜1.2k 1 And judging that no new food materials are put into the refrigerating chamber.
As a further improved technical scheme of the invention, the second preset time is 1 min.
In order to achieve the purpose, the invention further provides a refrigerator adopting the control method, and the refrigerator comprises a refrigerating chamber, a temperature sensor for sensing the temperature in the refrigerating chamber, a door body for opening or closing the refrigerating chamber, a monitor for sensing the opening and closing state of the door body, a timer and a control device, wherein the temperature sensor, the monitor and the timer are all in communication connection with the control device.
The beneficial effects of the invention are: according to the method for acquiring the slope of the temperature change curve in the refrigeration chamber before the door is opened, the temperature change curve in the refrigeration chamber in the first preset time period before the door is opened is acquired, and then the slope of the temperature change curve in the refrigeration chamber before the door is opened is acquired according to the temperature change curve, so that the method is simple and accurate.
Drawings
Fig. 1 is a flowchart of a method for obtaining the slope of the indoor temperature change curve before the door is opened in the first embodiment of the present invention.
Fig. 2 is a flowchart of a method for obtaining the slope of the indoor temperature change curve before the door is opened in the second embodiment of the present invention.
Fig. 3 is a flowchart of a control method of the refrigeration apparatus according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 1 to 3, which are preferred embodiments of the present invention. It should be noted that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make functional, methodical, or structural equivalents or substitutions according to these embodiments without departing from the scope of the present invention.
Referring to fig. 1, the present invention provides a method for obtaining a slope of a temperature change curve in a refrigeration compartment before opening a door, comprising the following steps:
obtaining a temperature change curve in a refrigerating chamber in a first preset time period before opening a door;
and acquiring the slope of the indoor temperature change curve of the refrigerating chamber before the door is opened according to the temperature change curve.
According to the invention, the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened is obtained, then the temperature change curve is analyzed, and the slope of the temperature change curve in the refrigerating chamber before the door is opened is obtained according to the temperature change curve, so that the method is simple and accurate.
Further, "acquiring a temperature change curve in the refrigerating compartment within a first preset time period before the door is opened" specifically includes the following steps:
continuously updating the temperature change curve in the refrigerating chamber within a first preset time period;
acquiring a door opening time point;
and the temperature change curve in the refrigerating chamber in the first preset time period corresponding to the door opening time point is the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened.
In one embodiment, the first predetermined time period is 5min, which is not limited to this.
In the first embodiment of the present invention, "obtaining the slope of the change curve of the indoor temperature of the cooling compartment before the door is opened from the change curve of the temperature" includes the steps of: judging whether the compressor has start-stop action in the first preset time period, if so, taking the slope of the temperature change curve in the refrigerating chamber from the last start-stop point to the door opening point of the compressor as the slope of the temperature change curve in the refrigerating chamber before the door is opened; if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
It can be understood that, generally, within the first preset time period of 5min, the time is short, and even if the compressor has a start-stop action, the compressor only has a start-up action or a shutdown action.
Meanwhile, if the compressor is started or stopped in a first preset time period before the door is opened, a temperature change curve in the refrigerating chamber in the first preset time period before the door is opened has an inflection point, if the compressor is started in the first preset time period before the door is opened, the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened rises and then falls, if the compressor is stopped in the first preset time period before the door is opened, the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened falls and then rises, and at the moment, the slope of the temperature change curve from the inflection point to the door opening point is the slope of the temperature change curve in the refrigerating chamber before the door is opened. If the compressor does not start or stop in the first preset time period before the door is opened, the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened is in a single ascending trend or descending trend, and at the moment, the slope of the temperature change curve in the refrigerating chamber in the first preset time period is taken as the slope of the temperature change curve in the refrigerating chamber before the door is opened, so that the method is accurate.
Referring to fig. 2, in the second embodiment of the present invention, "obtaining the slope of the indoor temperature change curve of the refrigeration compartment before the door is opened" according to the temperature change curve includes the following steps: judging whether the temperature change curve has an inflection point, if so, taking the slope of the temperature change curve in the refrigerating chamber in the period from the time point corresponding to the inflection point to the door opening point as the slope of the temperature change curve in the refrigerating chamber before the door is opened; if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
It can be understood that, generally, in a state of closing the door, only the start and stop of the compressor will cause an inflection point to appear on a temperature change curve in the refrigeration compartment, and within the first preset time period of 5min, the time is short, even if the compressor has the start and stop motion, only one start-up motion or shutdown motion is required, so that even if the temperature change curve in the refrigeration compartment in the first preset time period before the door is opened has the inflection point, only one inflection point exists.
Specifically, the "judging whether the temperature variation curve has an inflection point" specifically includes the following steps: judging the rising and falling trend of the temperature change curve, wherein if the temperature change curve rises first and then falls, the highest point of the temperature change curve is the inflection point; and if the temperature change curve firstly falls and then rises, the lowest point of the temperature change curve is the inflection point.
The first embodiment and the second embodiment have the same control method except for the above differences, and are not described herein again.
Further, "obtaining a temperature change curve in the refrigerating compartment within a first preset time period before the door is opened" specifically includes:
continuously updating the temperature change curve in the refrigerating chamber within a first preset time period;
acquiring a door opening time point;
and the temperature change curve in the refrigerating chamber in the first preset time period corresponding to the door opening time point is the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened.
Specifically, the control device obtains the temperature variation curve in the refrigerating chamber within the first preset time period according to the temperature sensed by the temperature sensor within the refrigerating device and the time point fed back by the timer, and continuously updates the temperature variation curve.
Further, referring to fig. 3, the present invention further provides a control method of a refrigeration apparatus, including the following steps:
obtaining the slope of the indoor temperature change curve before opening the door according to the method for obtaining the slope of the indoor temperature change curve before opening the door, and recording the slope as a first slope k 1 ；
Obtaining the slope of the temperature change curve in the refrigerating chamber in a second preset time period after the door is closed, and recording the slope as a second slope k 2 ；
According to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not;
obtaining the door opening time t according to the door opening time t and the second slope k 2 The rotational speed of the compressor is controlled.
It will be appreciated that a greater slope of the temperature change curve indicates a faster or slower temperature rise or fall within the refrigerated compartment. In the control method of the refrigeration device, whether new food materials are put in is judged by comparing the slopes of the temperature change curves before the door is opened and after the door is closed, namely, whether new food materials are put in is judged directly according to the temperature change trend in the refrigeration chamber, so that the control method is visual and accurate, and the refrigeration device can be controlled more accurately.
In one embodiment, the second predetermined time period is 1min, which is not limited to this.
Further, "according to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not specifically comprises the following steps:
judging the state of the compressor when the door is opened, if the compressor is in the starting state, then at k 2 ≥0.8k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜0.8k 1 Judging that no new food materials are put into the refrigerating chamber; if the compressor is in shutdown state, then at k 2 ≥1.2k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜1.2k 1 And judging that no new food materials are put into the refrigerating chamber.
When the compressor is in a starting state when the door is opened, the indoor temperature change curve of the refrigerating chamber before the door is opened is in a descending trend, and the first slope k 1 The negative number is negative, the temperature change trend in the refrigerating chamber in the second preset time period after the door is closed also shows a descending trend, and the second slope k 2 Is negative, the second slope k 2 Greater than a first slope k 1 It indicates that the temperature decrease tendency in the refrigerating compartment becomes gentle. In the process of opening and closing the door by a user, the refrigeration chamber can exchange heat with the outside, and even if no new food material is put into the refrigeration chamber, the temperature falling trend in the refrigeration chamber can be reduced after the door is closed, so that k is adjusted 2 And 0.8k 1 Making a comparison to improve the accuracy of the test results, at k 2 ≥0.8k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜0.8k 1 And judging that no new food materials are put into the refrigerating chamber.
Similarly, when the compressor is in a shutdown state when the door is opened, the indoor temperature change curve of the refrigerating chamber before the door is opened is in an ascending trendA slope k 1 The temperature change trend in the refrigerating chamber in the second preset time period after the door is closed is also in an ascending trend due to the positive number, and the second slope k 2 Is a positive number, the second slope k 2 Greater than a first slope k 1 It indicates that the temperature rising tendency in the refrigerating compartment becomes fast. In the process of opening and closing the door by a user, the refrigerating chamber can exchange heat with the outside, and even if no new food material is put into the refrigerating chamber, the temperature rising trend in the refrigerating chamber can be accelerated after the door is closed, so that k is adjusted 2 And 1.2k 1 Making a comparison to improve the accuracy of the test results, at k 2 ≥1.2k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜1.2k 1 And judging that no new food materials are put into the refrigerating chamber.
Further, the compressor is in a starting state when the door is opened, and after the new food materials are put into the refrigerating chamber, namely the compressor is in the starting state and k is in the opening state when the door is opened 2 ≥0.8k 1 According to the time t and the second slope k 2 The method for controlling the rotating speed of the compressor specifically comprises the following steps:
if the door opening time t is more than or equal to 10min, controlling the compressor to operate at 4500rpm/min for a third preset time period after the door is closed;
if the door opening time is less than or equal to 3min and t is less than 10min, the door opening time is 0.8k 1 ≤k 2 ＜0.75k 1 Then the compressor is controlled to run at 2600rpm/min for a third preset time period at 0.75k 1 ≤k 2 ＜0.4k 1 When the compressor is controlled to operate at 3500rpm/min for a third preset time period, at k 2 ≥0.4k 1 Controlling the compressor to operate at 4400rpm/min for a third preset time period;
if the door opening time t is less than 3min, the door opening time is 0.8k 1 ≤k 2 ＜0.75k 1 Then the compressor is controlled to run at 2100rpm/min for a third preset time period at 0.75k 1 ≤k 2 ＜0.4k 1 Then, the compressor is controlled to operate at 3200rpm/min for a third preset time period, and the k is 2 ≥0.4k 1 The compressor was controlled to run at 4200rpm/min for a third preset time period.
When the door opening time t is more than or equal to 10min, the door opening time is too long, so that the temperature fluctuation in the refrigerating chamber is large, at the moment, after the door is closed for the second preset time period, the compressor operates at 4500rpm/min for the third preset time period, the food is quickly refrigerated, the newly-placed food is quickly cooled, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
After the compressor operates for a third preset time period, the refrigeration device operates in a normal mode.
In one embodiment, the third predetermined time period is 30min, which is not limited to this. It is understood that, in other embodiments, the third preset time period may not be a determined time, but may be a time when the temperature in the refrigerating compartment reaches the shutdown point.
It can be understood that the first slope k 1 Is negative, therefore, 0.8k 1 ＜0.75k 1 ＜0.4k 1 . The second slope k is the same when the door is opened 2 The larger the temperature, the slower the temperature decrease trend, and indirectly the more new food material is put in.
In the present invention, according to the second slope k 2 Whether new food materials are put in and the amount of the new food materials are newly put in is judged, the more the amount of the new food materials are put in, the larger the rotating speed of the compressor is, targeted quick refrigeration can be realized, the quick cooling of the newly put food materials is realized, the temperature fluctuation in a refrigerating chamber is reduced, and the fresh-keeping effect is improved.
Further, the compressor is in a starting state when the door is opened, and after the refrigeration chamber is judged that no new food material is put in the refrigeration chamber, namely, the compressor is in the starting state and k is in the opening state when the door is opened 2 Less than 0.8k 1 According to the door opening time t and the second slope k 2 The method for controlling the rotating speed of the compressor specifically comprises the following steps:
if the door opening time t is more than or equal to 10min, controlling the compressor to operate at 4500rpm/min for a fourth preset time period after the door is closed;
if the door opening time is more than or equal to 3min and t is less than 10min, controlling the compressor to operate at 3000rpm/min for a fourth preset time period after the door is closed;
and if the door opening time t is less than 3min, the refrigerating device operates in a normal mode after the door is closed.
When the door opening time t is more than or equal to 10min, the door opening time is too long, so that the temperature fluctuation in the refrigerating chamber is large, at the moment, after the door is closed for the second preset time period, the compressor operates at 4500rpm/min for the fourth preset time period to carry out quick refrigeration, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
When the door opening time is less than or equal to 3min and less than 10min, although the door opening time is less than 10min, the temperature in the refrigerating chamber can be influenced to a certain extent, so that after the door is closed for the second preset time period, the compressor is controlled to operate at 3000rpm/min for the fourth preset time period for quick refrigeration, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
When the door opening time t is less than 3min, the door opening time is short, so that the temperature in the refrigerating chamber cannot be greatly influenced, and therefore, after the door is closed, the refrigerating device can operate in a normal mode.
The normal mode refers to a cooling mode in which the cooling compartment normally operates.
In one embodiment, the fourth predetermined time period is 10min, but not limited thereto. It is understood that, in other embodiments, the fourth preset time period may not be a determined time, but may be a time for the temperature in the refrigerating compartment to reach the shutdown point.
Further, when the door is opened, the compressor is in a shutdown state, and after new food materials are put into the refrigerating chamber, namely, when the door is opened, the compressor is in the shutdown state and k is in the shutdown state 2 ≥1.2k 1 According to the door opening time t and the second slope k 2 The method for controlling the rotating speed of the compressor specifically comprises the following steps:
if the door opening time t is more than or equal to 10min, controlling the compressor to operate at 4500rpm/min for a fifth preset time period after the door is closed;
if the door opening time is less than or equal to 3min and t is less than 10min, the door opening time is 1.2k 1 ≤k 2 ＜1.25k 1 Then the compressor is controlled to run at 2100rpm/min for a fifth preset time period at 1.25k 1 ≤ 2 ＜1.4k 1 Then, the compressor is controlled to operate at 3000rpm/min for a fifth preset time period, and k is 2 ≥1.4k 1 Controlling the compressor to operate at 3900rpm/min for a fifth preset time period;
if the door opening time t is less than 3min, the door opening time is 1.2k 1 ≤k 2 ＜1.25k 1 Then the compressor is controlled to operate at 1600rpm/min for a fifth preset time period at 1.25k 1 ≤k 2 ＜1.4k 1 Then the compressor is controlled to operate at 2700rpm/min for a fifth preset time period, at k 2 ≥1.4k 1 The compressor is controlled to operate at 3700rpm/min for a fifth preset time period.
When the door opening time t is more than or equal to 10min, the door opening time is too long, so that the temperature fluctuation in the refrigerating chamber is large, at the moment, after the door is closed for the second preset time period, the compressor operates at 4500rpm/min for the fifth preset time period, the food is quickly refrigerated, the newly-placed food is quickly cooled, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
And after the compressor operates for the fifth preset time period for quick refrigeration, the refrigeration device operates in a normal mode.
In one embodiment, the fifth predetermined time period is 30min, which is not limited to this. It is understood that, in other embodiments, the fifth preset time period may not be a determined time, but may be a time when the temperature in the refrigerating compartment reaches the shutdown point.
It can be understood that the first slope k 1 Is a positive number, so 1.2k 1 ＜1.25k 1 ＜1.4k 1 . The second slope k is equal to the door opening time 2 The larger the temperature, the faster the trend of temperature rise is indicated, and indirectly the more new food material is put in.
In the present invention, according to the second slope k 2 Whether new food materials are put in and the amount of the newly put-in food materials are judged, the more the newly put-in food materials are, the larger the rotating speed of the compressor is, targeted quick refrigeration can be achieved, the newly put-in food materials are quickly cooled, temperature fluctuation in a refrigeration chamber is reduced, and the fresh-keeping effect is improved.
In one embodiment, the fifth predetermined time period is 30min, but not limited thereto. It is understood that, in other embodiments, the fifth preset time period may not be a determined time, but may be a time for the temperature in the refrigerating compartment to reach the shutdown point.
Further, when the door is opened, the compressor is in a shutdown state, and after the refrigeration chamber is judged that no new food material is put into the refrigeration chamber, according to the door opening time t and the second slope k 2 The method for controlling the rotating speed of the compressor specifically comprises the following steps:
if the door opening time t is more than or equal to 10min, controlling the compressor to operate at 4500rpm/min for a sixth preset time period after the door is closed;
if the door opening time is less than or equal to 3min and t is less than 10min, controlling the compressor to operate at 3000rpm/min for a sixth preset time period after the door is closed;
and if the door opening time t is less than 3min, the refrigerating device operates in a normal mode after the door is closed.
When the door opening time t is more than or equal to 10min, the door opening time is too long, so that the temperature fluctuation in the refrigerating chamber is large, at the moment, after the door is closed for the second preset time period, the compressor operates at 4500rpm/min for the sixth preset time period to carry out quick refrigeration, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
When the door opening time is less than or equal to 3min and less than 10min, although the door opening time is less than 10min, the temperature in the refrigerating chamber can be influenced to a certain extent, so that after the door is closed for the second preset time period, the compressor is controlled to operate at 3000rpm/min for the sixth preset time period for quick refrigeration, the temperature fluctuation in the refrigerating chamber is reduced, and the fresh-keeping effect is improved.
When the door opening time t is less than 3min, the door opening time is short, so that the temperature in the refrigerating chamber cannot be greatly influenced, and the refrigerating device can be operated in a normal mode after the door is closed.
In one embodiment, the sixth predetermined time period is 10min, which is not limited to this.
The refrigerator comprises a refrigerating chamber, a temperature sensor for sensing the temperature in the refrigerating chamber, a door body for opening or closing the refrigerating chamber, a monitor for sensing the opening and closing state of the door body, a timer and a control device, wherein the temperature sensor, the monitor and the timer are all in communication connection with the control device. The control device obtains a temperature change curve in the refrigerating chamber within a first preset time period according to the temperature of the refrigerating chamber sensed by the temperature sensor and the timer, and obtains a door opening point and a door closing point of the refrigerator according to the monitor.
The control method of the refrigerator is as described above, and is not described herein again.
In summary, in the method for obtaining the slope of the indoor temperature change curve of the refrigeration compartment before the door is opened, the temperature change curve in the refrigeration compartment in the first preset time period before the door is opened is obtained, and then the slope of the indoor temperature change curve of the refrigeration compartment before the door is opened is obtained according to the temperature change curve, so that the method is simple and accurate.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for obtaining the slope of a temperature change curve in a refrigeration chamber before door opening is characterized in that: the method comprises the following steps:
obtaining a temperature change curve in a refrigerating chamber in a first preset time period before opening a door;
and acquiring the slope of the indoor temperature change curve of the refrigerating chamber before the door is opened according to the temperature change curve.
2. The method for obtaining the slope of the indoor temperature change curve of the refrigerating compartment before the door is opened according to claim 1, wherein: the method for acquiring the slope of the indoor temperature change curve of the refrigeration chamber before door opening according to the temperature change curve comprises the following steps: judging whether the compressor has start-stop action in the first preset time period, if so, taking the slope of the temperature change curve in the refrigerating chamber from the last start-stop point to the door opening point of the compressor as the slope of the temperature change curve in the refrigerating chamber before the door is opened; and if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
3. The method for obtaining the slope of the indoor temperature change curve of the refrigerating compartment before the door is opened according to claim 1, wherein: the method for acquiring the slope of the indoor temperature change curve of the refrigerating chamber before door opening according to the temperature change curve comprises the following steps: judging whether the temperature change curve has an inflection point, if so, taking the slope of the temperature change curve in the refrigerating chamber from the time point corresponding to the inflection point to the door opening period as the slope of the temperature change curve in the refrigerating chamber before the door opening; and if not, taking the slope of the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened as the slope of the temperature change curve in the refrigerating chamber before the door is opened.
4. The method for obtaining the slope of the indoor temperature change curve of the refrigerating compartment before the door is opened according to claim 3, wherein: the step of judging whether the temperature change curve has an inflection point specifically comprises the following steps: judging the rising and falling trend of the temperature change curve, wherein if the temperature change curve rises first and then falls, the highest point of the temperature change curve is the inflection point; and if the temperature change curve firstly falls and then rises, the lowest point of the temperature change curve is the inflection point.
5. The method for obtaining the slope of the indoor temperature change curve of the refrigerating compartment before door opening as claimed in claim 1, wherein: the specific steps of obtaining the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened are as follows:
continuously updating the temperature change curve in the refrigerating chamber within a first preset time period;
acquiring a door opening time point;
and the temperature change curve in the refrigerating chamber in the first preset time period corresponding to the door opening time point is the temperature change curve in the refrigerating chamber in the first preset time period before the door is opened.
6. The method for obtaining the slope of the indoor temperature change curve of the refrigerating compartment before door opening as claimed in claim 1, wherein: the first preset time period is 5 min.
7. A control method of a refrigeration apparatus, characterized in that: the control method comprises the following steps:
the method for obtaining the slope of the indoor temperature change curve before the door is opened according to any one of claims 1 to 6, wherein the slope of the indoor temperature change curve before the door is opened is obtained and recorded as a first slope k 1 ；
Obtaining the slope of the temperature change curve in the refrigerating chamber in a second preset time period after the door is closed, and recording the slope as a second slope k 2 ；
According to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not;
obtaining the door opening time t according to the door opening time tAnd a second slope k 2 The rotational speed of the compressor is controlled.
8. The control method of a refrigeration apparatus according to claim 7, characterized in that: according to the second slope k 2 And the first slope k 1 Judging whether new food materials are put into the refrigerating chamber or not specifically comprises the following steps:
judging the state of the compressor when the door is opened, if the compressor is in the starting state, then at k 2 ≥0.8k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜0.8k 1 Judging that no new food materials are put into the refrigerating chamber; if the compressor is in shutdown state, then at k 2 ≥1.2k 1 Then, judging that new food materials are put into the refrigerating room at k 2 ＜1.2k 1 And judging that no new food materials are put into the refrigerating chamber.
9. The control method of a refrigeration apparatus according to claim 7, characterized in that: the second preset time is 1 min.
10. A refrigerator employing the control method of any one of claims 7 to 9, characterized in that: the refrigerator comprises a refrigerating chamber, a temperature sensor for sensing the temperature in the refrigerating chamber, a door body for opening or closing the refrigerating chamber, a monitor for sensing the opening and closing state of the door body, a timer and a control device, wherein the temperature sensor, the monitor and the timer are all in communication connection with the control device.
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| CN202311204535.6A CN117367021A (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
| CN202311198270.3A CN117366961A (en) | 2021-03-18 | 2021-03-18 | Control method of refrigerating device and refrigerator |
| CN202110288743.3A CN115111873B (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
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| CN202110288743.3A CN115111873B (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
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| CN202311198270.3A Division CN117366961A (en) | 2021-03-18 | 2021-03-18 | Control method of refrigerating device and refrigerator |
| CN202311204535.6A Division CN117367021A (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
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| CN202110288743.3A Active CN115111873B (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
| CN202311204535.6A Pending CN117367021A (en) | 2021-03-18 | 2021-03-18 | Temperature change curve slope obtaining method, control method and refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717807A (en) * | 2022-11-24 | 2023-02-28 | 珠海格力电器股份有限公司 | Control method and controller of refrigeration house equipment, air conditioner and refrigeration house |
| CN115993042A (en) * | 2022-12-14 | 2023-04-21 | 广东美的白色家电技术创新中心有限公司 | Control method and control device for refrigeration appliance, refrigeration appliance and storage medium |
| CN117854064A (en) * | 2024-03-04 | 2024-04-09 | 江苏源坤电子科技有限公司 | Refrigerator goods identification system and method based on artificial intelligence |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015189009A1 (en) * | 2014-06-11 | 2015-12-17 | BSH Hausgeräte GmbH | Refrigeration appliance |
| CN107782060A (en) * | 2016-08-30 | 2018-03-09 | 青岛海尔智能技术研发有限公司 | A kind of method that refrigerator door open-close is detected with temperature signal |
| CN108506963A (en) * | 2018-04-24 | 2018-09-07 | 广东美的厨房电器制造有限公司 | The fiery detection method of range hood and its control method and system and pass and device |
| JP2019070464A (en) * | 2017-10-06 | 2019-05-09 | 東芝ライフスタイル株式会社 | refrigerator |
| CN110332758A (en) * | 2019-06-26 | 2019-10-15 | 青岛海尔电冰箱有限公司 | refrigeration control method and device of refrigerator |
| CN111336565A (en) * | 2020-04-09 | 2020-06-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Fire-off detection method and device for cooking equipment, range hood and storage medium |
| CN112026845A (en) * | 2020-09-02 | 2020-12-04 | 中车青岛四方机车车辆股份有限公司 | Train temperature monitoring method and device, train, electronic equipment and medium |
-
2021
- 2021-03-18 CN CN202311198270.3A patent/CN117366961A/en active Pending
- 2021-03-18 CN CN202110288743.3A patent/CN115111873B/en active Active
- 2021-03-18 CN CN202311204535.6A patent/CN117367021A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015189009A1 (en) * | 2014-06-11 | 2015-12-17 | BSH Hausgeräte GmbH | Refrigeration appliance |
| CN107782060A (en) * | 2016-08-30 | 2018-03-09 | 青岛海尔智能技术研发有限公司 | A kind of method that refrigerator door open-close is detected with temperature signal |
| JP2019070464A (en) * | 2017-10-06 | 2019-05-09 | 東芝ライフスタイル株式会社 | refrigerator |
| CN108506963A (en) * | 2018-04-24 | 2018-09-07 | 广东美的厨房电器制造有限公司 | The fiery detection method of range hood and its control method and system and pass and device |
| CN110332758A (en) * | 2019-06-26 | 2019-10-15 | 青岛海尔电冰箱有限公司 | refrigeration control method and device of refrigerator |
| CN111336565A (en) * | 2020-04-09 | 2020-06-26 | 佛山市顺德区美的洗涤电器制造有限公司 | Fire-off detection method and device for cooking equipment, range hood and storage medium |
| CN112026845A (en) * | 2020-09-02 | 2020-12-04 | 中车青岛四方机车车辆股份有限公司 | Train temperature monitoring method and device, train, electronic equipment and medium |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115717807A (en) * | 2022-11-24 | 2023-02-28 | 珠海格力电器股份有限公司 | Control method and controller of refrigeration house equipment, air conditioner and refrigeration house |
| CN115993042A (en) * | 2022-12-14 | 2023-04-21 | 广东美的白色家电技术创新中心有限公司 | Control method and control device for refrigeration appliance, refrigeration appliance and storage medium |
| CN115993042B (en) * | 2022-12-14 | 2024-04-05 | 广东美的白色家电技术创新中心有限公司 | Control method and control device for refrigeration appliance, refrigeration appliance and storage medium |
| CN117854064A (en) * | 2024-03-04 | 2024-04-09 | 江苏源坤电子科技有限公司 | Refrigerator goods identification system and method based on artificial intelligence |
| CN117854064B (en) * | 2024-03-04 | 2024-05-28 | 江苏源坤电子科技有限公司 | Refrigerator goods identification system and method based on artificial intelligence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117366961A (en) | 2024-01-09 |
| CN115111873B (en) | 2023-10-10 |
| CN117367021A (en) | 2024-01-09 |
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