CN111664625A - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN111664625A CN111664625A CN201910176648.7A CN201910176648A CN111664625A CN 111664625 A CN111664625 A CN 111664625A CN 201910176648 A CN201910176648 A CN 201910176648A CN 111664625 A CN111664625 A CN 111664625A
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- Prior art keywords
- water
- storage box
- water storage
- temperature
- temperature threshold
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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
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- 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
Abstract
The invention provides a refrigerator, comprising: the water storage box is arranged in the refrigerating chamber; the ice-making box is arranged in the freezing chamber; the water storage box water temperature sensor is arranged near the water storage box; and a control part, wherein the control part judges whether the water storage amount in the water storage box is sufficient or not according to the water temperature change value of the water storage box within a first preset time, the temperature threshold value related to the current environment temperature and the door opening and closing condition of the refrigerating chamber within a second preset time. According to the refrigerator provided by the invention, whether the water storage amount in the water storage box for ice making is sufficient or not can be accurately judged.
Description
Technical Field
The present invention relates to a refrigerator, and more particularly, to a refrigerator having an automatic ice making function.
Background
In the prior art refrigerator having an automatic ice making function, there are the following judgment mechanisms: after the water box is judged to be in a water-free state, once the opening and closing actions of the door of the logic refrigerating chamber are detected, the water for making ice is considered to be injected into the ice making water storage box in the opening and closing process of the door. In the actual use process of the judging mechanism, most door opening and closing actions are not used for filling water into the ice-making water box, and in the process of normally taking goods in the refrigerating chamber by a user, the existing detection logic determines that the water is filled into the water box. The judgment mechanism can not accurately judge whether water exists in the water box or not, so that the ice machine abnormally operates or does not operate abnormally.
In addition, other judgment mechanisms in the prior art mainly rely on methods such as adding a floating ball in the water box and the like, and judge whether water is stored in the water box or not by detecting the position of the logic floating device. The sensor needs to be installed in the water box by using the judging mechanism, so that the water box is not beneficial to cleaning, and the device is electrified and has electric leakage risk.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a refrigerator capable of accurately determining whether or not water is present in a water storage box.
In order to achieve the above object, a refrigerator according to one aspect of the present invention includes: the water storage box is arranged in the refrigerating chamber; the ice-making box is arranged in the freezing chamber; the water storage box water temperature sensor is arranged near the water storage box; and a control unit that executes the steps of: acquiring a water temperature change value of the water storage box within a first specified time; obtaining the current environment temperature, and obtaining a preset temperature threshold value and a preset temperature compensation value according to the environment temperature; monitoring the opening and closing of the door of the refrigerating chamber within a second predetermined time; and when the opening and closing condition of the door of the refrigerating chamber within the second specified time is judged to be the second condition, comparing the water temperature change value of the water storage box within the first specified time with the temperature threshold value to judge whether the water storage quantity in the water storage box is sufficient, and when the opening and closing condition of the door of the refrigerating chamber within the second specified time is judged to be the second condition, comparing the water temperature change value of the water storage box within the first specified time, the temperature threshold value and a value obtained by adding the temperature compensation value to the temperature threshold value to judge whether the water storage quantity in the water storage box is sufficient. With this configuration, it is possible to indirectly determine whether or not the water storage amount in the water storage box is sufficient without adding a float detection device.
In addition, in the refrigerator of the present invention, a plurality of preset ambient temperature values, a plurality of preset temperature thresholds corresponding to the preset ambient temperature values, and a plurality of preset temperature compensation values are preset according to different intervals of the ambient temperature, and the controller obtains the preset ambient temperature values, the preset temperature thresholds, and the preset temperature compensation values at two endpoints of the interval according to the interval where the current ambient temperature is located, performs interpolation calculation on the preset ambient temperature values and the preset temperature thresholds, thereby obtaining the temperature threshold corresponding to the current ambient temperature, and performs interpolation calculation on the preset ambient temperature values and the preset temperature compensation values, thereby obtaining the temperature compensation value corresponding to the current ambient temperature. Therefore, the influence of the ambient temperature on the switching cycle (refrigerating cycle) of the refrigerator compressor can be considered, and the influence of the ambient temperature on the water temperature change value of the water storage box within the preset time can be considered. From this, can judge more accurately whether the water storage capacity in the water storage box is sufficient.
In the refrigerator according to the present invention, the control unit performs the following operations: obtaining a first temperature threshold value related to the current environment temperature; acquiring the water temperature change value of the water storage box within the first specified time; comparing the water temperature change value of the water storage box with the first temperature threshold value; when the water temperature change value of the water storage box is larger than or equal to the first temperature threshold value, judging that the water quantity in the water storage box is sufficient; when the water temperature change value of the water storage box is smaller than the first temperature threshold value, comparing the actual accumulated time for closing the door of the refrigerating chamber with the second specified time; when the actual accumulated time of the door closing of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is greater than a second temperature threshold value, judging that the water quantity in the water storage box is sufficient; when the actual accumulated time of the door closing of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is less than a third temperature threshold value, judging that the water quantity in the water storage box is sufficient; when the actual door closing accumulated time of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is greater than or equal to the third temperature threshold and less than or equal to the second temperature threshold, judging that the water quantity in the water storage box is insufficient; when the actual accumulated time of the door closing of the refrigerating chamber is longer than the second specified time and the water temperature change value of the water storage box is larger than or equal to the third temperature threshold value, judging that the water quantity in the water storage box is insufficient; and when the actual door closing accumulated time of the refrigerating chamber is greater than the second specified time and the water temperature change value of the water storage box is smaller than the third temperature threshold value, judging that the water quantity in the water storage box is sufficient. Therefore, whether the water storage amount in the water storage box is sufficient or not can be judged more accurately by considering whether the water is added to the water storage box when a user opens or closes the refrigerator door, the initial temperature of the added water and other factors.
In the refrigerator according to the present invention, the first predetermined time is set according to a compressor on/off cycle. Therefore, the deviation of the water temperature change value of the water storage box within the first specified time measured each time can be reduced, and whether the water storage amount in the water storage box is sufficient or not can be judged more accurately.
In addition, in the refrigerator according to the present invention, the first temperature threshold is equal to the second temperature threshold plus a first temperature compensation value. Through setting up first temperature compensation value, even the user drops into the higher water of temperature, also can accurately judge whether the water storage capacity in the water storage box is sufficient.
In the refrigerator according to the present invention, the control unit performs the following operations: obtaining a second temperature threshold value related to the current environment temperature; judging whether a door is opened or closed within the second specified time; acquiring the water temperature change value of the water storage box within the first specified time; when the door is opened and closed within the second specified time and the water temperature change value of the water storage box is greater than or equal to the second temperature threshold value or less than or equal to a third temperature threshold value, judging that the water quantity in the water storage box is sufficient; when the door is opened and closed within the second specified time and the water temperature change value of the water storage box is smaller than the second temperature threshold and larger than the third temperature threshold, judging that the water quantity in the water storage box is insufficient; when the door is not opened or closed within the second specified time and the water temperature change value of the water storage box is smaller than or equal to a third temperature threshold value, judging that the water quantity in the water storage box is sufficient; and when the door is not opened or closed within the second specified time and the water temperature change value of the water storage box is greater than a third temperature threshold value, judging that the water quantity in the water storage box is insufficient. Therefore, whether the water storage amount in the water storage box is sufficient or not can be accurately judged.
In addition, in the refrigerator according to the present invention, the second temperature threshold is equal to the third temperature threshold plus a second temperature compensation value. From this, can judge more accurately whether the water storage capacity in the water storage box is sufficient.
In addition, in the refrigerator, a heat conducting material sheet is attached between the water temperature sensor of the water storage box and the water storage box. Therefore, the temperature measured by the water temperature sensor is closer to the actual water temperature, and whether the water storage amount in the water storage box is sufficient or not can be judged more accurately.
In addition, in the refrigerator of the present invention, a recess is formed at a bottom of the water storage box, and the water temperature sensor of the water storage box is disposed in the recess. Therefore, the temperature measured by the water temperature sensor is closer to the actual water temperature, and whether the water storage amount in the water storage box is sufficient or not can be judged more accurately.
In the refrigerator according to the present invention, after the water storage tank is filled with water, the ice making operation is repeated, and the first temperature threshold or the second temperature threshold is recalculated every time the ice making operation is started. Therefore, the influence of the change of the ambient temperature can be eliminated, and whether the water storage amount in the water storage box is sufficient or not can be judged more accurately.
In the refrigerator according to the present invention, after the water shortage in the water storage box is detected, the water supply and ice making operation for supplying the water in the water storage box to the ice making box is performed at a time. This ensures that water remaining in the water storage box is discharged.
Drawings
Fig. 1 is a schematic configuration diagram showing a refrigerator according to the present invention.
Fig. 2 is an exploded perspective view illustrating an ice making unit of a refrigerator according to the present invention.
Fig. 3 is a schematic view showing an example of a water storage box of a refrigerator according to the present invention.
Fig. 4 is a schematic view showing another example of a water storage box of a refrigerator according to the present invention.
Fig. 5 is a flowchart illustrating a first control method of a refrigerator according to the present invention.
Fig. 6 is a flowchart illustrating a second control method of a refrigerator according to the present invention.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Preferred embodiments of a processing device and a refrigerator according to the present invention will be described in detail below with reference to the accompanying drawings. In the description of the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description thereof will be omitted.
< Structure of refrigerator >
Fig. 1 is a schematic configuration diagram showing a refrigerator according to the present invention. As shown in fig. 2, the refrigerator 100 of the first embodiment includes a refrigerating compartment 1, an ice making compartment 2, a first freezing compartment 3, a second freezing compartment 4, and a temperature changing compartment 5. Wherein, the water storage box 10 is arranged in the refrigerating chamber 1. The ice making housing 20 is provided in the ice making compartment 2. Here, the configuration of the compartment is not limited to the above configuration, and may be any configuration as long as the water storage box 10 is provided above the ice making box 20, and the layout of the other compartments may be appropriately changed according to the size and function of the refrigerator.
Fig. 2 is an exploded perspective view illustrating an ice making unit of a refrigerator according to the present invention. The ice-making unit includes: a water storage box 10 for storing ice-making water added by a customer; an ice-making housing 20 for making ice cubes from the water storage housing 10; a water supply line 50 for supplying water in the water storage box 10 to the ice making box 20; a water supply pump 70 for supplying a certain amount of water to the ice making housing 20. Further, in order to control the ice making action, the ice making unit includes: a water storage box water temperature sensor 40 for detecting the change of the water temperature in the water storage box 10; a door switch 30 for detecting whether or not a door of the refrigerating chamber 1, which is a compartment where the water storage box 10 is located, is opened or closed; and a control circuit board 60 electrically connected to the door switch 30, the water storage box water temperature sensor 40, and the water supply pump 70 to transmit signals.
Fig. 3 is a schematic view showing an example of a water storage box of a refrigerator according to the present invention. In this embodiment, the water storage box water temperature sensor 40 is disposed below the water storage box 10, and a thermally conductive material sheet 80 is attached between the water storage box water temperature sensor 40 and the water storage box 10. The thermally conductive material sheet 80 is made of a material having high thermal conductivity, such as metal. The heat conductive material sheet 80 can increase the temperature detection accuracy, so that the temperature detection value is closer to the temperature of water in the water storage box 10. Here, the heat conductive material sheet is not necessary, and the water storage box water temperature sensor 40 may be directly attached to the bottom of the water storage box 10 without providing the heat conductive material sheet. In addition, the water storage box water temperature sensor 40 may be provided near the water storage box 10 according to actual circumstances.
Fig. 4 is a schematic view showing another example of a water storage box of a refrigerator according to the present invention. In this example, a recess 11 is formed in the bottom of the water storage box 10. The water storage box water temperature sensor 40 is arranged in the concave part 11. With such a configuration, the temperature detection accuracy can be increased, and the temperature detection value can be brought closer to the temperature of the water in the water storage box 10.
< first control method of refrigerator >
Fig. 5 is a flowchart illustrating a first control method of a refrigerator according to the present invention. Table 1 is a parameter comparison table of parameters employed in the first control method of fig. 5.
[ Table 1]
The control method of the refrigerator of the invention is designed according to the characteristic that the specific heat capacity of Water is larger than the specific heat capacity of air (the temperature variation of Water is different from the air temperature variation in the same refrigerating time), the Water temperature variation value Water _ T of the Water storage box in the Water storage box 10 is detected by the Water temperature sensor 40 of the Water storage box added near the Water storage box 10, and the variation is compared with the preset parameter, thereby judging whether the Water exists in the Water storage box 10. That is, the controller determines whether or not the amount of Water stored in the Water storage box is sufficient based on the Water temperature change value Water _ T of the Water storage box within the first predetermined time T2, the temperature threshold value related to the current ambient temperature, and the door opening/closing state of the refrigerating room within the second predetermined time T1. Here, the first predetermined time T2 may be set according to the compressor on-off period.
In addition, a plurality of preset environment temperature values, a plurality of preset temperature threshold values corresponding to the preset temperature values and a plurality of preset temperature compensation values are preset according to different intervals of the environment temperature, the controller obtains the preset environment temperature values, the preset temperature threshold values and the preset temperature compensation values of two endpoints of the interval according to the interval where the current environment temperature is located, interpolation calculation is carried out on the preset environment temperature values and the preset temperature threshold values, the temperature threshold values corresponding to the current environment temperature are obtained, the preset environment temperature values and the preset temperature compensation values are subjected to interpolation calculation, and the temperature compensation values corresponding to the current environment temperature are obtained. For example, the refrigerator is actually in an environment with an ambient temperature AT-10 ℃, and then the adjacent preset temperature in the preset ambient temperature value is ATC 1-5 and ATC 2-18. If the corresponding Water temperature change parameters are Water _ T1-5 and Water _ T2-18, then (Water _ T2-Water _ T0)/(Water _ T0-Water _ T1) — (ATC2-AT)/(AT-ATC1) is calculated according to a difference method, and the Water temperature change parameter Water _ T0 AT 10 ℃ can be calculated as 10. Further, assuming that the Water temperature correction coefficient b1 AT 5 ℃, (ATC) 18 ℃, (the preset temperature threshold AT 5 ℃ is Water _ T1, and the preset temperature threshold AT 18 ℃ is Water _ T2), the difference method is used to calculate (b2-b)/(b-b1), (ATC2-AT)/(AT-ATC1), and thus b AT 10 ℃, (the preset temperature compensation value AT 5 ℃ is b1, and the preset temperature compensation value AT 18 ℃ is b2) can be calculated. In addition, if the user adds water at a relatively high temperature, the temperature will be high in a short time, and in order to quickly judge this, the water temperature correction coefficient b5 (further preset temperature compensation value) is introduced. For example, b5 may be constant for the same model of refrigerator. Here, the Water temperature change parameters Water _ T1 to Water _ T4 and the Water temperature correction coefficients b1 to b4 are data obtained by experiments. In addition, the number of the preset ambient temperature values may be any, and when the preset ambient temperature values are sufficient, the temperature threshold of the current ambient temperature value may also be obtained directly by looking up the table without using an interpolation method.
Next, the operation of the control unit in the first control method will be described with reference to fig. 5.
In step S10, the user turns off the ice making stop function. That is, the user desires to perform a new ice making action. In step S11, a first temperature threshold value Water _ T0+ b + b5 associated with the current ambient temperature is retrieved. In step S12, the Water storage box Water temperature change value within the first predetermined time T2 is acquired, and the Water storage box Water temperature change value Water _ T is compared with the first temperature threshold value Water _ T0+ b 5. Here, if Water having a high temperature is newly input, the Water _ T value may be large, so that some correction amount b5 needs to be further added to the base value Water _ T0+ b. At this time, since the temperature drop amount per unit time is large (larger than the temperature change amount in the state where water is not present in the normal state), it is determined that the user has just input water having a high temperature, and in this case, it is directly determined that water is present. Therefore, when the Water temperature variation value Water _ T of the Water storage box is greater than or equal to the first temperature threshold value Water _ T0+ b + b5, it is determined that the amount of Water in the Water storage box is sufficient (step S16).
When the Water storage box Water temperature variation value is less than the first temperature threshold value Water _ T0+ b + b5, the door closing actual accumulated time of the refrigerating compartment is compared with a second prescribed time T1 (step S13).
When the door closing actual accumulated time of the refrigerating chamber is less than the second prescribed time T1 (second case) (step S14) and the Water temperature variation value of the Water storage box is greater than the second temperature threshold value Water _ T0+ b, it is judged that the amount of Water in the Water storage box is sufficient (step S16). At this time, the user is considered to input water with higher temperature when the refrigerator door is opened, and the temperature drop amount is larger, so that the water quantity in the water storage box is judged to be sufficient.
When the door closing actual accumulated time of the refrigerating compartment is less than the second prescribed time T1 (second case) (step S14) and the Water storage box Water temperature variation value Water _ T is less than the third temperature threshold value Water _ T0, it is judged that the amount of Water in the Water storage box is sufficient (step S16). At the moment, the Water is not thrown in the opening and closing process of the door, but the Water quantity in the original Water storage box is sufficient, so that the Water temperature change value Water _ T of the Water storage box is small.
When the door closing actual accumulated time of the refrigerating chamber is less than the second prescribed time T1 (second condition) (step S14) and the Water temperature variation value Water _ T of the Water storage box is equal to or greater than the third temperature threshold value Water _ T0 and equal to or less than the second temperature threshold value Water _ T0+ b, it is judged that the amount of Water in the Water storage box is insufficient (step S19).
When the door closing actual accumulated time of the refrigerating chamber is greater than a second prescribed time T1 (first condition) (step S15) and the Water temperature variation value Water _ T of the Water storage box is greater than or equal to a third temperature threshold Water _ T0, the Water shortage in the Water storage box is judged (step S16), and when the door closing actual accumulated time of the refrigerating chamber is greater than the second prescribed time T1 (first condition) (step S15) and the Water temperature variation value of the Water storage box is less than the third temperature threshold Water _ T0, the Water shortage in the Water storage box is judged (step S19). At this time, after the door is closed for the second predetermined time T1, it is considered that the Water temperature should be close to the temperature in the refrigerator at this time regardless of the initial Water supply temperature, so that the Water amount is considered sufficient if the Water temperature change value Water _ T of the Water storage box is smaller than Water _ T0, and is considered insufficient otherwise, according to the characteristic that the specific heat capacity of Water is relatively small.
After the water storage box is judged to have a sufficient amount of water (step S16), the water supply and ice making operations are performed once (step S17), and in step S18, ice making is completed. Thereafter, an ice making function on determination is made (step S22), and if the ice making function is on, the process returns to step S11. If the ice making function is turned off, the ice making is stopped (step S21). After the water storage box is judged to have insufficient water (step S19), water supply and ice making operations are performed once (step S20), and ice making is stopped in step S21. Here, although the shortage of water in the water storage box is detected, an ice making operation is added once (to prevent erroneous judgment when the water amount is relatively small), and it is ensured that no residual water is finally left in the water storage box.
According to the first control method of the invention, whether the water quantity in the water storage box is sufficient or not can be accurately judged. And no matter the temperature of the user added into the water storage box is high or low, whether the water quantity in the water storage box is sufficient or not can be accurately judged.
< second control method of refrigerator >
Fig. 6 is a flowchart illustrating a second control method of a refrigerator according to the present invention. Table 2 is a parameter comparison table of parameters employed in the second control method of fig. 6. The second control method follows the parameters in table 1. The second predetermined time T1 is a reference time for determining whether or not the door is opened or closed, and is not used as a reference value for comparing with the actual cumulative closing time of the door.
Next, the operation of the control unit in the second control method will be described with reference to fig. 6.
In step S30, the user turns off the ice making stop function. That is, the user desires to perform a new ice making action. In step S31, a second temperature threshold value Water _ T0+ b associated with the current ambient temperature is retrieved. In step S32, it is determined whether or not the door is opened or closed within the second predetermined time T1.
If the door is not opened or closed within the second predetermined time T1, the Water storage box Water temperature change value Water _ T within the first predetermined time is acquired and compared with the third temperature threshold value Water _ T0 (step S33). Judging that the Water quantity in the Water storage box is sufficient when the door is not opened and closed within the second prescribed time T1 (first condition) and the Water temperature change value Water _ T of the Water storage box is less than or equal to the third temperature threshold Water _ T0 (step S35); when the door is not opened or closed within the second predetermined time T1 (the first condition), and the Water temperature variation value Water _ T of the Water storage box is greater than the third temperature threshold value Water _ T0, it is determined that the amount of Water in the Water storage box is insufficient (step S38). At this time, after the door is closed for the second predetermined time T1, it is considered that the Water temperature should be close to the temperature in the refrigerator at this time regardless of the initial Water supply temperature, so that the Water amount is considered sufficient if the Water temperature change value Water _ T of the Water storage box is smaller than Water _ T0, and is considered insufficient otherwise, according to the characteristic that the specific heat capacity of Water is relatively small.
If the door is opened or closed within the second predetermined time T1 (second condition), the Water storage box Water temperature change value Water _ T within the first predetermined time is acquired and compared with the third temperature threshold value Water _ T0 (step S34). When the door is opened or closed within the second predetermined time T1 (the second condition), and the Water temperature variation value Water _ T of the Water storage box is greater than or equal to the second temperature threshold value Water _ T0+ b or less than or equal to the third temperature threshold value Water _ T0, it is determined that the amount of Water in the Water storage box is sufficient (step S35). When the door is opened or closed within the second predetermined time T1 (the second condition), and the Water temperature variation value of the Water storage box is smaller than the second temperature threshold value Water _ T0+ b and larger than the third temperature threshold value Water _ T0, it is determined that the amount of Water in the Water storage box is insufficient (step S38).
After the water storage box is judged to have a sufficient amount of water (step S35), the water supply and ice making operations are performed once (step S36), and in step S37, ice making is completed. Thereafter, an ice making function opening/closing determination is made (step S41), and if the ice making function is opened, the process returns to step S31. If the ice making function is turned off, the ice making is stopped (step S40). After the water storage box is judged to have insufficient water (step S38), water supply and ice making operations are performed once (step S39), and ice making is stopped in step S40. Here, although the shortage of water in the water storage box is detected, an ice making operation is added once (to prevent erroneous judgment when the water amount is relatively small), and it is ensured that no residual water is finally left in the water storage box.
According to the second control method of the present invention, it is also possible to accurately judge whether the amount of water in the water storage box is sufficient. The second predetermined time T1 in the second control method may be arbitrarily set, and is not limited to the on/off cycle of the compressor. In the second control method, the correction coefficient b5 is omitted as compared with the first control method. Therefore, the process of judging whether the water quantity in the water storage box is sufficient is simpler and more convenient.
In the above description of the embodiments, the specific examples are only given, and the structures, connection manners and the like of the components are not limited thereto, and any equivalent changes and modifications based on the technical solution of the present invention should not be excluded from the scope of the present invention.
Claims (11)
1. A refrigerator is characterized in that a refrigerator body is provided with a refrigerator door,
the disclosed device is provided with:
the water storage box is arranged in the refrigerating chamber;
the ice-making box is arranged in the freezing chamber;
the water storage box water temperature sensor is arranged near the water storage box; and
a control part for controlling the operation of the display device,
the control section executes the steps of:
acquiring a water temperature change value of the water storage box within a first specified time;
obtaining the current environment temperature, and obtaining or calculating a temperature threshold value and a temperature compensation value according to the environment temperature;
monitoring the opening and closing of the door of the refrigerating chamber within a second predetermined time;
when the opening and closing condition of the door of the refrigerating chamber within the second preset time is judged to be the first condition, the water temperature change value of the water storage box within the first preset time is compared with the temperature threshold value, so that whether the water storage quantity in the water storage box is sufficient or not is judged,
and when the opening and closing condition of the door of the refrigerating chamber within the second preset time is judged to be the second condition, comparing the water temperature change value of the water storage box within the first preset time, the temperature threshold value and a value obtained by adding the temperature compensation value to the temperature threshold value, and judging whether the water storage quantity in the water storage box is sufficient or not.
2. The refrigerator of claim 1,
presetting a plurality of preset values of the environmental temperature, a plurality of preset temperature thresholds corresponding to the preset values of the environmental temperature and a plurality of preset temperature compensation values according to different intervals of the environmental temperature,
the controller obtains the environmental temperature preset value, the preset temperature threshold value and the preset temperature compensation value of two endpoints of the interval according to the interval where the current environmental temperature is located, performs interpolation calculation on the environmental temperature preset value and the preset temperature threshold value so as to obtain the temperature threshold value corresponding to the current environmental temperature, and performs interpolation calculation on the environmental temperature preset value and the preset temperature compensation value so as to obtain the temperature compensation value corresponding to the current environmental temperature.
3. The refrigerator of claim 1,
the control unit performs the following operations:
obtaining a first temperature threshold value related to the current environment temperature;
acquiring the water temperature change value of the water storage box within the first specified time;
comparing the water temperature change value of the water storage box with the first temperature threshold value;
when the water temperature change value of the water storage box is larger than or equal to the first temperature threshold value, judging that the water quantity in the water storage box is sufficient;
when the water temperature change value of the water storage box is smaller than the first temperature threshold value, comparing the actual accumulated time for closing the door of the refrigerating chamber with the second specified time;
when the actual accumulated time of the door closing of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is greater than a second temperature threshold value, judging that the water quantity in the water storage box is sufficient;
when the actual accumulated time of the door closing of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is less than a third temperature threshold value, judging that the water quantity in the water storage box is sufficient;
when the actual door closing accumulated time of the refrigerating chamber is less than the second specified time and the water temperature change value of the water storage box is greater than or equal to the third temperature threshold and less than or equal to the second temperature threshold, judging that the water quantity in the water storage box is insufficient;
when the actual accumulated time of the door closing of the refrigerating chamber is longer than the second specified time and the water temperature change value of the water storage box is larger than or equal to the third temperature threshold value, judging that the water quantity in the water storage box is insufficient;
and when the actual door closing accumulated time of the refrigerating chamber is greater than the second specified time and the water temperature change value of the water storage box is smaller than the third temperature threshold value, judging that the water quantity in the water storage box is sufficient.
4. The refrigerator of claim 3,
the first prescribed time is set according to the compressor on-off period.
5. The refrigerator of claim 3,
the first temperature threshold is equal to the second temperature threshold plus a first temperature compensation value.
6. The refrigerator of claim 1,
the control unit performs the following operations:
obtaining a second temperature threshold value related to the current environment temperature;
judging whether a door is opened or closed within the second specified time;
acquiring the water temperature change value of the water storage box within the first specified time;
when the door is opened and closed within the second specified time and the water temperature change value of the water storage box is greater than or equal to the second temperature threshold value or less than or equal to a third temperature threshold value, judging that the water quantity in the water storage box is sufficient;
when the door is opened and closed within the second specified time and the water temperature change value of the water storage box is smaller than the second temperature threshold and larger than the third temperature threshold, judging that the water quantity in the water storage box is insufficient;
when the door is not opened or closed within the second specified time and the water temperature change value of the water storage box is smaller than or equal to a third temperature threshold value, judging that the water quantity in the water storage box is sufficient;
and when the door is not opened or closed within the second specified time and the water temperature change value of the water storage box is greater than a third temperature threshold value, judging that the water quantity in the water storage box is insufficient.
7. The refrigerator according to claim 3 or 6,
the second temperature threshold is equal to the third temperature threshold plus a second temperature compensation value.
8. The refrigerator according to claim 3 or 6,
and a heat conducting material sheet is attached between the water storage box and the water temperature sensor.
9. The refrigerator according to claim 3 or 6,
the bottom of the water storage box is provided with a concave part,
the water storage box water temperature sensor is arranged in the concave part.
10. The refrigerator according to claim 3 or 6,
after the water storage box is detected to have sufficient water, the ice making action is repeated,
recalculating the first temperature threshold or the second temperature threshold each time ice making begins.
11. The refrigerator according to claim 3 or 6,
and after the water in the water storage box is detected to be insufficient, water supply and ice making actions of supplying water in the water storage box to the ice making box are performed once.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910176648.7A CN111664625B (en) | 2019-03-08 | 2019-03-08 | Refrigerator with a door |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910176648.7A CN111664625B (en) | 2019-03-08 | 2019-03-08 | Refrigerator with a door |
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| CN111664625A true CN111664625A (en) | 2020-09-15 |
| CN111664625B CN111664625B (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910176648.7A Active CN111664625B (en) | 2019-03-08 | 2019-03-08 | Refrigerator with a door |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551480A (en) * | 2021-07-30 | 2021-10-26 | 珠海格力电器股份有限公司 | Refrigerator control method, refrigerator and computer-readable storage medium |
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| CN111664625B (en) | 2022-05-31 |
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