CN115854632A - Refrigeration device and control method thereof - Google Patents
Refrigeration device and control method thereof Download PDFInfo
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- CN115854632A CN115854632A CN202111120765.5A CN202111120765A CN115854632A CN 115854632 A CN115854632 A CN 115854632A CN 202111120765 A CN202111120765 A CN 202111120765A CN 115854632 A CN115854632 A CN 115854632A
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Abstract
The embodiment of the invention provides a refrigeration appliance and a control method thereof, wherein the refrigeration appliance comprises: a first storage chamber; a second storage chamber; the refrigeration system comprises an evaporator, a compressor and a fan, wherein the evaporator is positioned in the evaporator chamber and used for cooling air flowing through the evaporator chamber, the fan is suitable for driving cold air in the evaporator chamber to sequentially flow through the first storage chamber and the second storage chamber and then return to the evaporator chamber, and the compressor is suitable for driving refrigerant to flow through the evaporator so as to reduce the temperature of the evaporator; the control unit is electrically connected with the refrigerating system; operating a fan to cool the second storage compartment through the first storage compartment when only the second storage compartment of the first and second storage compartments has a cooling demand; and adapted to operate the compressor to supply refrigerant to the evaporator and the fan when the first storage chamber has a cooling demand. The control of two storerooms with different temperatures can be realized without using an air door, the starting and stopping times of the refrigeration cycle are reduced, and the energy consumption is reduced.
Description
Background
Some known refrigeration appliances have at least two storage compartments having different set temperatures, and allow air in one of the storage compartments to flow into the other storage compartment to regulate the temperature of one or both of the storage compartments. Such a refrigeration device often needs to add additional hardware (such as a damper, etc.) and an electric control scheme matched with the hardware to control the air circulation between the two storage chambers, so as to adjust the temperature of one or both storage chambers.
Disclosure of Invention
A first aspect of embodiments of the present invention is to provide one or more refrigeration appliances that can control the temperatures of two storage compartments having different set temperatures by controlling a refrigeration system.
A refrigeration appliance comprising: a first storage chamber; a second reservoir chamber in fluid communication with the first reservoir chamber and having a set temperature higher than a set temperature of the first reservoir chamber; a refrigeration system including an evaporator, a compressor and a fan, the evaporator being located in an evaporator chamber for cooling air flowing therethrough, the fan being adapted to drive cold air in the evaporator chamber to flow sequentially through a first storage chamber and a second storage chamber and then to return to the evaporator chamber, the compressor being adapted to drive refrigerant to flow through the evaporator to lower the temperature of the evaporator; the control unit is electrically connected with the refrigerating system; the method is characterized in that: the control unit is adapted to operate the fan to cool the second storage compartment through the first storage compartment when only the second storage compartment of the first and second storage compartments has a cooling demand; and adapted to operate the compressor to supply refrigerant to the evaporator and the fan when the first storage chamber has a cooling demand. The refrigeration appliance can realize the control of the two storerooms with different temperatures under the condition of not using an air door; and only when the first storage chamber with lower set temperature has refrigeration demand, the refrigeration cycle is operated, so that the starting and stopping times of the refrigeration cycle are reduced, and the energy consumption is reduced.
In a possible embodiment, the set temperature of the first storage chamber and the set temperature of the second storage chamber belong to a refrigeration temperature zone; or the set temperature of the first storage room and the set temperature of the second storage room belong to the freezing temperature zone.
In a possible embodiment, a difference between the set temperature of the first storage chamber and the set temperature of the second storage chamber is not greater than 8 degrees celsius.
In a possible embodiment, the volume ratio of the first storage compartment and the second storage compartment is between 1/5 and 1/3.
In a possible embodiment, the refrigeration appliance includes an outer casing and an inner container located inside the outer casing, the inner container defines a cavity, and the first storage chamber and the second storage chamber are both located in the cavity and can be opened or closed by the same door body.
In a possible embodiment, the refrigeration appliance comprises a door and a container located within the first storage compartment; when the fan is operated, at least part of cold air in the first storage chamber is suitable for flowing through a gap between the door body and the container to enter the second storage chamber.
In a possible embodiment, the air cooled by the evaporator is adapted to enter the first storage chamber from the rear thereof and to flow out of the first storage chamber from the front upper side thereof, and to flow into the second storage chamber from the front lower side thereof and to flow out of the second storage chamber from the rear upper side thereof.
In a possible embodiment, the compressor comprises at least a first compression power at which the compressor operates when the first storage compartment has a refrigeration demand and the second storage compartment has no refrigeration request and a second compression power higher than the first compression power at which the compressor operates when both the first storage compartment and the second storage compartment have a refrigeration request; and/or, the fan includes at least a first rotational power and a second rotational power higher than the first rotational power, the fan operates at the first rotational power when only the second storage compartment has a cooling demand, and otherwise the fan operates at the second rotational power.
In a possible embodiment, the compressor includes a first compression power at which the compressor starts to operate when the first storage chamber has a refrigeration demand and a third compression power higher than the first compression power; and after the compressor operates at the first compression power for a fifth preset time, the compressor operates at the third compression power.
In a possible embodiment, the fan includes a first rotational power at which the fan is activated to operate when only the second storage compartment has a cooling demand and a third rotational power higher than the first rotational power; after the fan runs for a first preset time at the first rotating power, the fan runs at the third rotating power; and/or, the fan comprises a second rotating power and a fourth rotating power higher than the second rotating power, and when the first storage chamber has a refrigerating requirement, the fan is started to operate at the second rotating power; after the fan runs for a third preset time at the second rotating power, the fan runs at the fourth rotating power; wherein: the second rotational power is higher than the first rotational power.
A second aspect of embodiments of the present invention is to provide a control method for one or more refrigeration appliances, which can control the temperatures of two storage compartments having different set temperatures without additional hardware.
A control method of a refrigeration appliance includes a first storage compartment; a second reservoir chamber in fluid communication with the first reservoir chamber having a set temperature higher than a set temperature of the first reservoir chamber; a refrigeration system including an evaporator, a compressor and a fan, the evaporator being located in an evaporator chamber for cooling air flowing therethrough, the fan being adapted to drive cold air in the evaporator chamber to flow sequentially through a first storage chamber and a second storage chamber and then to return to the evaporator chamber, the compressor being adapted to drive refrigerant to flow through the evaporator to lower the temperature of the evaporator; the method is characterized in that: the control method comprises
a. The refrigeration system operating in a first mode when only the second storage compartment of the first and second storages has a refrigeration need; wherein, in the first mode, the fan operates to drive the cold air of the first storage chamber to flow into the second storage chamber to cool the second storage chamber; and
b. when the first storage chamber has refrigeration demand, the refrigeration system works in a second mode; wherein, in the second mode, the compressor operates to supply refrigerant to the evaporator and the fan operates.
By adopting the refrigeration appliance with the method, the control of the two storerooms with different temperatures can be realized under the condition of not using an air door; and only when the first storage chamber with lower set temperature has refrigeration demand, the refrigeration cycle is operated, so that the starting and stopping times of the refrigeration cycle are reduced, and the energy consumption is reduced.
In a possible embodiment, in the first mode, the compressor does not supply refrigerant to the evaporator.
In a possible embodiment, the operating power of the fan in the second mode is higher than the operating power of the fan in the first mode.
In a possible embodiment, the fan is controlled to increase the first operating power after the refrigeration appliance operates in the first mode for more than a first preset time period; and/or after the refrigeration appliance runs in the first mode for more than a second preset time, controlling the fan to increase second running power; the second preset time length is longer than the first preset time length, and the second operation power is larger than the first operation power.
In a possible embodiment, after the refrigeration appliance operates in the second mode for more than a third preset time period, the fan is controlled to increase a third operating power; and/or after the refrigeration appliance runs in the second mode for more than a fourth preset time, controlling the fan to increase fourth running power; the fourth preset time length is longer than the third preset time length, and the fourth operating power is longer than the third operating power.
In a possible embodiment, after the refrigeration appliance operates in the second mode for more than a fifth preset time period, controlling the compressor to increase a fifth operating power; and/or after the refrigeration device runs in the second mode for more than a sixth preset time, controlling the compressor to increase sixth running power; the sixth preset time is longer than the fifth preset time, and the sixth operating power is longer than the fifth operating power.
In a possible embodiment, the compressor does not supply refrigerant to the evaporator and the fan gap operates when there is no cooling demand in both the first storage compartment and the second storage compartment.
In a possible embodiment, when the second storage chamber also has a cooling demand under the condition that the second mode is satisfied, the compressor is operated at a power higher than the operating power of the compressor in the second mode, and/or the fan is operated at a power higher than the operating power of the fan in the second mode.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention.
FIG. 1 is a cross-sectional view of a schematic structure of a refrigerator according to an embodiment of the present invention.
Fig. 2 is a flow chart of a control method of a refrigeration appliance according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present application are described clearly and completely by the following specific examples, and it is obvious that the described examples are some, but not all, of the examples of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting and/or limiting of the present disclosure. Unless otherwise defined in context, the singular form includes the plural form. Throughout the specification, the terms "comprises," "comprising," "includes," "including," "having," and the like, are used herein to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. Even though ordinal terms such as first, second, etc., may be included to describe various elements, the elements are not limited by these terms, and these terms are used only to distinguish one element from other elements. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the scope of the present disclosure. The term "and/or" includes one of the plurality of associated listed items or any and all combinations thereof.
Fig. 1 is a schematic structural sectional view of a refrigeration appliance 100 according to an embodiment of the present invention.
The refrigerator 100 according to the embodiment of the present invention may be a household appliance, such as a refrigerator, a freezer, a wine cabinet, etc., for providing a low temperature storage environment for articles for a user.
As shown in fig. 1, a first storage chamber 10 and a second storage chamber 20 for storing articles are formed inside a refrigerator appliance 100; in order to meet the storage requirements of different temperatures of different articles, the first storage chamber 10 and the second storage chamber 20 may be set as storage spaces with different set temperatures, for example, the set temperature of the second storage chamber 20 is higher than the storage temperature in the first storage chamber 10. For example, some of the relatively low temperature-resistant articles may be placed in the first storage room 10, while the relatively non-low temperature-resistant articles may be stored in the second storage room 20; alternatively, the first storage room 10 is filled with articles to be kept fresh for a long period of time, and the second storage room 20 is filled with articles to be kept fresh for a short period of time. Different set temperatures can be achieved by providing different amounts of cold to different storage spaces.
The second storage chamber 20 is in fluid communication with the first storage chamber 10 through the connection passage 1020, and the low-temperature air in the first storage chamber 10 flows into the second storage chamber 20 to provide cold energy to the second storage chamber 20.
The refrigeration appliance 100 further comprises a refrigeration system 40 for providing refrigeration to the refrigeration appliance 100. The refrigeration system 40 includes a refrigeration cycle including a compressor 43, an evaporator 41, and a condenser, an expansion device, and the like, which are not shown in the drawings. The compressor 43 operates to drive the refrigerant flow in the refrigeration cycle to discharge cold at the evaporator 41 to cool the air flowing therethrough and its accessories. The refrigerating system 40 further includes a fan 42, and the fan 42 operates to blow air cooled by the evaporator 41 into the first storage chamber 10 and returns to the evaporator 41 after passing through the second storage chamber 20. The cold air introduced into the first storage chamber 10 is heat-exchanged in the first storage chamber 10, and thus, the temperature of the air re-introduced into the second storage chamber 20 has been slightly increased, and the cooling capacity of the cold air for the articles has been inferior to that of the air initially introduced into the first storage chamber 10.
The refrigeration appliance 100 further includes a control unit 30, the control unit 30 being electrically connected to the refrigeration system 40 to control the operation or non-operation of one or more components of the refrigeration system 40. In a specific embodiment, the control unit 30 is electrically connected to the compressor 43, and can control the compressor 43 to operate, not allow or stop operation, when the compressor 43 operates, the refrigerant flows in the refrigeration cycle, and the low temperature is generated at the evaporator 41 to supply the refrigeration device 100 with the refrigeration. In a modification, a valve electrically connected to the control unit 30 is provided upstream of the evaporator 41, and the control unit 30 can also selectively control whether or not the refrigerant flows through the evaporator 41 by on-off control of the valve; correspondingly, when the valve is turned on, the refrigerant flows through the evaporator 41, and a low temperature is generated at the evaporator 41; when the valve is opened, the refrigerant cannot flow through the evaporator 41, and the evaporator 41 cannot generate a low temperature. The refrigeration cycle may be operated when the first storage chamber 10 has a refrigeration demand, and when a low temperature is generated at the evaporator 41, the first storage chamber 10 may thereby take out the refrigeration. In fig. 1, the dashed line connection illustrates the electrical connection relationship of the control unit 30 and other components.
The control unit 30 is also electrically connected to a fan 42 in the refrigeration system 40 to control the operation or non-operation of the fan 42. The control unit 30 also controls the operation of the fan 42 when the first storage chamber 10 has a cooling demand. At this time, the cold air near the evaporator 41 is blown into the first storage chamber 10 by the fan 42, and the temperature of the first storage chamber 10 may be lowered. The air in the first storage chamber 10 is also blown into the second storage chamber 20 by the fan 42, and the temperature in the second storage chamber 20 may be lowered.
When only the second storage room 20 of the first storage room 10 and the second storage room 20 has a cooling demand, the control unit 30 controls the fan 42 to be operated and controls the cooling cycle to be not operated or stopped so that the second storage room 20 can obtain cooling capacity only from the first storage room 10.
As described above, the refrigeration appliance 100 can achieve control of two storage compartments of different temperatures without using a damper; and the refrigeration cycle is operated only when the first storage chamber 10 with lower set temperature has refrigeration requirement, so that the starting and stopping times of the refrigeration cycle are reduced, and the energy consumption is reduced.
It will be understood by those skilled in the art that the set temperature of each storage compartment may be a desired or ideal temperature for the manufacturer or user of the refrigeration appliance 100, and that the temperature of each storage compartment may be brought to or maintained near the set temperature by controlling the amount of cooling energy entering each storage compartment. For example, for a storage compartment with a lower set temperature, the temperature of the storage compartment can be made to be at a relatively lower level by controlling more cold air or cooler cold air to enter the storage compartment; the temperature of the storage compartment can be brought to a relatively low level by controlling a smaller amount of cold air or a slightly lower temperature of cold air into the storage compartment than in the storage compartment where the temperature is set to be slightly higher. Along with the heat exchange between each storage chamber and each internal article and the heat dissipation of cold energy, the temperature in the storage chambers can gradually rise and exceed the set temperature, and at the moment, the cold energy needs to be provided for the storage chambers to reduce the temperature; when the temperature in the storage chamber is reduced to a set temperature or a temperature lower than the set temperature, the cold supply to the storage chamber is stopped. Thus, the storage chambers are at the set temperature through repeated circulation.
In a specific implementation of the embodiment, the refrigeration appliance 100 further includes temperature sensors 11 and 12, and the temperature sensors 11 and 12 are used for acquiring the temperature of the first storage room 10 and/or the second storage room 20. The control unit 30 controls the refrigeration system 40 based on the temperature data collected by the temperature sensors 11 and 12, thereby controlling the supply of cold to the first storage room 10 and the second storage room 20. When the temperature in a certain storage chamber is higher than the set temperature of the storage chamber or higher than the set temperature of the storage chamber by a certain range, the storage chamber has a refrigeration requirement; when the temperature in a certain storage chamber is lower than the set temperature of the storage chamber or lower than the set temperature of the storage chamber by a certain range, the refrigerating requirement of the storage chamber is not needed. Further, the refrigeration appliance 100 includes a first temperature sensor 11 and a second temperature sensor 21 respectively disposed in the first storage chamber 10 and the second storage chamber 20. In this way, it is possible to intervene more precisely and independently on the temperature of the two storage compartments.
The control unit 30 may include a central processing unit or other general purpose processor, or an application specific integrated circuit, or a digital signal processor, or a field programmable gate array or other programmable logic device, etc. The control unit 30 may also include a timer.
In a possible embodiment, the set temperatures of the first storage compartment 10 and the second storage compartment 20 belong to the same temperature range, for example to the same refrigeration temperature range or to the same freezing temperature range. With this arrangement, the temperature difference between the set temperatures of the first storage chamber 10 and the second storage chamber 20 is relatively small, the temperature in each storage chamber can be maintained in a relatively stable state, and it is advantageous to reduce the starting frequency of the refrigeration cycle. If the temperature difference is too large, the communication state of the first storage chamber 10 and the second storage chamber 20 may cause the temperature of the first storage chamber 10 to rapidly increase and the temperature inside the second storage chamber 20 to rapidly increase, and it is difficult to maintain the temperatures inside both storage chambers at the preset temperature. In the case where the temperature difference is small, the temperature exchange between the two storage chambers is relatively slow, and even if the first storage chamber 10 and the second storage chamber 20 are in fluid communication, a state where a certain temperature difference exists between the two storage chambers can be maintained. Moreover, when only the second storage chamber 20 of the first storage chamber 10 and the second storage chamber 20 has a cooling demand, the fan 42 blows air in the first storage chamber 10 into the second storage chamber 20 to cool the second storage chamber 20, and when the preset temperature difference is small, the temperature of the first storage chamber 10 may be within the preset temperature after the temperature of the second storage chamber 20 reaches the preset temperature, and at this time, the refrigeration cycle does not need to be started, thereby reducing the frequency of starting the refrigeration cycle.
More closely, the difference between the preset temperature of the first storage chamber 10 and the preset temperature inside the second storage chamber 20 is within 8 ℃. For example, the temperature set in the first storage chamber 10 is 0 ℃ and the temperature set in the second storage chamber 20 is 2 to 8 ℃. Below such a temperature difference range, when any one of the storage compartments has a refrigeration demand to be provided with refrigeration, the temperature influence on the other storage compartment can be within a tolerable range, in other words, the temperatures of the two storage compartments are not too high or too low to deviate from the storage demand excessively.
In a possible embodiment, the volume of the first storage chamber 10 is smaller than the container 13 of the second storage chamber 20, for example, the volume of the first storage chamber 10 is between 1/3 and 1/5 of the volume of the second storage chamber 20, such as 53 liters for the first storage chamber 10 and 210 liters for the second storage chamber 20. With such an arrangement, the temperature in the two storage rooms can be stabilized, for example, when the first storage room 10 has a cooling request, if the first storage room 10 is too large or the second storage room 20 is too small, more cooling capacity can be delivered to the second storage room 20 while the first storage room 10 is being cooled, which may cause the temperature in the second storage room 20 to deviate from the storage requirement. If the first storage chamber 10 is too small and the second storage chamber 20 is too large, the temperature of the first storage chamber 10 may be frequently lower than the set temperature after the second storage chamber 20 is cooled when only the second storage chamber 20 needs to be cooled, and at this time, a cooling cycle needs to be started to cool the first storage chamber 10.
With continued reference to fig. 1, the refrigeration appliance 100 includes a housing 70 and an inner container 80 inside the housing 70, the inner container 80 having a box shape with one side open; the refrigerator 100 further includes a door 50 for closing and opening the open side of the inner container 80, and the inner container 80 and the door 50 define a chamber 90. First storage chamber 10 and second storage chamber 20 are located in the same chamber and can be opened or closed by the same door 50, wherein first storage chamber 10 and second storage chamber 20 are separated by partition 60 disposed in inner container 80.
In fig. 1, a dotted line with a cutting head indicates the flow direction of the cool air. The refrigeration appliance 100 further comprises an air inlet 12 located behind the first storage compartment 10. The air cooled by the evaporator 41 can flow into the first storage chamber 10 from back to front, then flow forward and upward, flow into the front of the second storage chamber 20 through the gap between the door 50 and the front end of the container 13 or the front end of the partition 60, flow upward and backward in the second storage chamber 20 to the air outlet 22 of the second storage chamber 20, and flow out of the second storage chamber 20 through the air outlet 22. The air path is relatively bent, and a certain temperature difference between the first storage chamber 10 and the second storage chamber 20 can be ensured even if the first storage chamber 10 and the second storage chamber 20 are in fluid communication.
The connection passage between the first storage chamber 10 and the second storage chamber 20 may include a gap between the partition 60 and the door body, and/or a gap between the receptacle 13 and the door body.
In a possible embodiment, the compressor 43 can be operated at a first compression power and also at a second compression power which is higher than the first compression power. Controlling the compressor 43 to operate at the first compression power when the first storage chamber 10 has a cooling demand and the second storage chamber 20 has no cooling demand; the compressor 43 is controlled to operate at the second compression power when both the first storage room 10 and the second storage room 20 have a cooling request. When only the first storage chamber 10 has a refrigeration requirement, the refrigeration appliance 100 needs to generate relatively little refrigeration; the first storage compartment 10 and the second storage compartment 20 both have a refrigeration request and the refrigeration appliance 100 needs to generate relatively much refrigeration capacity at the same time. With such a configuration, each storage chamber can reach the set temperature as quickly as possible, power redundancy is reduced, and the operation efficiency of the refrigeration appliance 100 is higher.
In a possible embodiment, the compressor 43 may be operated at the first compression power, and may be operated at a third compression power higher than the first compression power. When the first storage chamber 10 has a cooling demand, the compressor 43 starts to operate at the first compression power; after the compressor 43 operates at the first compression power for a fifth preset time period, it operates at the third compression power.
In a possible embodiment, the fan 42 can be operated at a first rotational power and also at a second rotational power which is higher than the first rotational power. When only the second storage compartment 20 has a cooling demand, the fan 42 is operated at the first rotational power, otherwise the fan 42 is operated at the second rotational power.
In a possible embodiment, the fan 42 may be operated at the first rotational power and may also be operated at a third rotational power higher than the first rotational power. When only the second storage chamber 20 has a cooling demand, the fan 42 is operated at the first rotational power; the fan 42 is operated at the third rotational power after being operated at the first rotational power for the first preset time period.
In a possible embodiment, the fan 42 may be operated at the first rotational power and may also be operated at a fourth rotational power higher than the first rotational power. When the first storage chamber 10 has a cooling demand, the fan 42 is started to operate at the second rotational power; the fan 42 is operated at the second rotational power for a third preset period of time and then at a fourth rotational power; wherein: the second rotational power is higher than the first rotational power.
The compression power of the compressor 43 represents how much refrigerant is supplied to the evaporator 41 per unit time, and the higher the compression power is, the more refrigerant is supplied to the evaporator 41 per unit time, and the more cooling energy is generated at the evaporator 41 per unit time. The rotational power of the fan 42 may characterize the blowing capacity of the fan 42, with higher power providing greater blowing capacity; the rotating power can be represented by the rotating speed of the fan 42, and the higher the power is, the higher the rotating speed is and the stronger the blowing capacity is; the rotational power may also be the average power over a period of time, for example by increasing the ratio of the rotational time/the stopping time over a period of time to increase the average power over that period of time, and thus increase the blowing capacity.
Fig. 2 is a flow chart illustrating a control method of the refrigeration appliance 100 according to an embodiment of the present invention.
The refrigeration appliance 100 to which the control method provided in the practice of the present invention is applied includes a first storage compartment 10; a second storage chamber 20 in fluid communication with the first storage chamber 10 and having a set temperature higher than that of the first storage chamber 10; the refrigeration system 40 comprises an evaporator 41, a compressor 43 and a fan 42, wherein the evaporator 41 is positioned in an evaporator chamber 44 and used for cooling air flowing through, the fan 42 is suitable for driving cold air in the evaporator chamber 44 to flow through the first storage chamber 10 and the second storage chamber 20 in sequence and then return to the evaporator chamber 44, and the compressor 43 is suitable for driving refrigerant to flow through the evaporator 41 so as to reduce the temperature of the evaporator 41. In addition, the control method provided by the implementation of the invention is also applicable to any refrigeration appliance 100 disclosed in the application. The control method comprises the following steps:
a. the refrigeration system 40 operates in a first mode when there is a refrigeration demand in the first storage compartment 10 and the second storage compartment only in the second storage compartment 20; wherein, in the first mode, the fan 42 is operated to drive the cold air of the first storage chamber 10 to flow into the second storage chamber 20 to cool the second storage chamber 20; and
b. when the first storage chamber 10 has a refrigeration demand, the refrigeration system 40 operates in the second mode; wherein, in the second mode, the compressor 43 is operated to supply the refrigerant to the evaporator 41 and the fan 42 is operated.
The beneficial effects of this embodiment can be obtained from the description of the foregoing embodiments or the implementation process of the foregoing embodiments, and for the sake of brevity, repeated descriptions are omitted here.
In a particular embodiment, the control method further comprises: when there is no cooling demand in both the first storage chamber 10 and the second storage chamber 20, the refrigerant is not supplied to the evaporator 41, but the fan 42 is operated intermittently. At this time, the temperatures of the respective storage compartments are more equalized by the agitation of the fan 42.
As a variant, in a possible embodiment, the control method further comprises: when there is no cooling demand in both the first storage chamber 10 and the second storage chamber 20, neither refrigerant is supplied to the evaporator 41 nor the fan 42 is operated.
In a particular embodiment, the control method further comprises: in the first mode, the compressor 43 does not supply refrigerant to the evaporator 41.
Table 1 illustrates the logic for the control method of the refrigeration appliance 100 in some embodiments of the present invention.
TABLE 1 logic for control of a refrigeration appliance 100 in some embodiments of the invention
Further, under the condition of satisfying the second mode (i.e. when the first storage chamber 10 has a cooling demand), the second storage chamber 20 also has a cooling demand, and at this time, the compressor 43 and/or the fan 42 are controlled to increase the power, so that even if both storage chambers have a cooling demand, cooling energy can be rapidly supplied to each storage chamber, so that the temperatures of both storage chambers reach the set temperature rapidly, and the operation time of the compressor 43 is reduced. Specifically, when both the first storage chamber 10 and the second storage chamber 20 have a cooling request, the compressor 43 is controlled to operate at a power higher than the compression power of the compressor 43 in the second mode. Alternatively, when both the first storage room 10 and the second storage room 20 have a cooling request, the fan 42 is controlled to operate at a power higher than the rotating power of the fan 42 in the second mode.
In a possible embodiment, in the first mode, the fan 42 is operated at a power of P _ f 8; in the second mode, the fan 42 is operated at power P _ f7, P _ f7 > P _ f8.
In a possible embodiment, in the first mode, the fan 42 is activated to operate at a first rotation power P _ f 4; if the operation in the first mode is still required after the duration time exceeds the first preset time period T _ r1, the rotation power of the fan 42 is appropriately increased to operate at the third rotation power, so that the temperature of the second storage chamber 20 reaches the set temperature more quickly. Further, the third power may be a specific power value, or a group of specific power values, for example, when the fan 42 is operated in the second mode after the fan is operated in the first mode for the first preset time period T _ r1, the fan 42 is increased in rotation power by the first operating power to P _ f5, and the fan is continuously operated; if the first mode still needs to be operated after the second preset time period T _ r2 is operated in the first mode, the rotating power of the fan 42 is increased to P _ f6 by the second operating power. In this case, P _ f5 and P _ f6 can be considered as the third rotation power alone or as a part of the third rotation power set. The first preset duration and the second preset duration may be counted from when the first mode starts to operate, or the second preset duration may be counted from when the first preset duration ends.
In a possible embodiment, in the second mode, the fan 42 is always in operation. The fan 42 is started to operate at the power of the second rotational power P _ f 1; if the refrigeration appliance 100 still needs to operate in the second mode after the duration of the second mode exceeds the third preset time period T _ v3, the third operating power is increased to operate the fan 42 in the fourth rotating power, so that the temperature schedule of the first storage chamber 10 or the first storage chamber 10 and the second storage chamber 20 reaches the set temperature. Further, the fourth power may be a specific power value, or a group of specific power values, for example, after the second mode is operated for the first preset time period T _ v3, the fan 42 is increased to the power of P _ f2 to continue the operation; if the second mode still needs to be operated after the third preset time period T _ v3 is operated in the second mode, the rotation power of the fan 42 is increased to P _ f3 by the fourth operation power. In this case, P _ f2 and P _ f3 may be used alone as the fourth rotation power or as a part of the fourth rotation power set. The third preset duration and the fourth preset duration may both be counted from when the second mode starts to operate, or the fourth preset duration may also be counted from when the third preset duration ends.
In a possible embodiment, in the second mode, the second storage compartment 20 may or may not have a cooling demand. Therefore, in the second mode, if the second storage chamber 20 has no cooling demand, the compressor 43 is controlled to operate at the compression power of the first compression power P _ c 4; in the second mode, if the second storage chamber 20 has a cooling demand, the compressor 43 is controlled to operate at a compression power of the second compression power P _ c5, which is higher than the first compression power P _ c 4.
In a possible embodiment, in the second mode, the compressor 43 is always in operation. The compressor 43 is started to operate at a power of the first compression power P _ f 1; if the refrigerator 100 still needs to operate in the second mode after the duration of the second mode exceeds the fifth preset time period T _ v1, the compression power of the compressor 43 is appropriately increased to operate in the third compression power, so that the temperature schedule of the first storage chamber 10 or the first storage chamber 10 and the second storage chamber 20 reaches the set temperature. Further, the third compression power may be a specific power value, or a group of specific power values, for example, if the compressor 43 needs to operate in the second mode after operating in the second mode for a fifth preset time period T _ v3, the compressor 43 is increased in compression power by the fifth operating power to P _ f2, and the operation is continued; if the operation in the second mode is still required after the operation in the second mode for the sixth preset time period T _ v3, the compression power of the compressor 43 is increased to the sixth operation power P _ f3. In this case, P _ f2 and P _ f3 may be used alone as the third compression power or as a part of the third compression power set. The fifth preset duration and the sixth preset duration may be counted from when the second mode starts to operate, or the sixth preset duration may be counted from when the fifth preset duration ends.
While specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless differently stated. In particular implementations, the features of one or more dependent claims may be combined with those of the independent claims as technically feasible according to the actual requirements, and the features from the respective independent claims may be combined in any appropriate manner and not merely by the specific combinations enumerated in the claims.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (18)
1. A control method of a refrigeration appliance (100), the refrigeration appliance (100) comprising
A first storage chamber (10);
a second storage chamber (20) in fluid communication with the first storage chamber (10) having a set temperature higher than the set temperature of the first storage chamber (10);
a refrigeration system (40) comprising an evaporator (41), a compressor (43) and a fan (42), wherein the evaporator (41) is positioned in an evaporator chamber (44) and used for cooling air flowing through, the fan (42) is suitable for driving cold air in the evaporator chamber (44) to flow through a first storage chamber (10) and a second storage chamber (20) in sequence and then return to the evaporator chamber (44), and the compressor (43) is suitable for driving refrigerant to flow through the evaporator (41) so as to reduce the temperature of the evaporator (41);
the method is characterized in that: the control method comprises
a. -the refrigeration system (40) operates in a first mode when there is a refrigeration demand from only the second storage compartment (20) of the first storage compartment (10) and the second storage; wherein, in the first mode, the fan (42) is operated to drive the cold air of the first storage chamber (10) to flow into the second storage chamber (20) to cool the second storage chamber (20); and
b. -said refrigeration system (40) operates in a second mode when said first storage compartment (10) has a refrigeration demand; wherein in the second mode, the compressor (43) is operated to supply refrigerant to the evaporator (41) and the fan (42) is operated.
2. The control method according to claim 1, characterized in that:
in the first mode, the compressor (43) does not supply refrigerant to the evaporator (41).
3. The control method according to claim 1, characterized in that:
the operating power of the fan (42) in the second mode is higher than the operating power of the fan (42) in the first mode.
4. The control method according to claim 1, characterized in that:
controlling the fan (42) to increase a first operating power after the refrigeration appliance (100) operates in the first mode for more than a first preset period of time; and/or the presence of a gas in the gas,
controlling the fan (42) to increase a second operating power after the refrigeration appliance (100) operates in the first mode for more than a second preset period of time; the second preset time length is longer than the first preset time length, and the second operation power is larger than the first operation power.
5. The control method according to claim 1, characterized in that:
controlling the fan (42) to increase a third operating power after the refrigeration appliance (100) operates in the second mode for more than a third preset period of time; and/or the presence of a gas in the gas,
controlling the fan (42) to increase a fourth operating power after the refrigeration appliance (100) operates in the second mode for more than a fourth preset time period; the fourth preset time length is longer than the third preset time length, and the fourth operating power is longer than the third operating power.
6. The control method according to claim 1, characterized in that:
controlling the compressor (43) to increase a fifth operating power after the refrigeration appliance (100) operates in the second mode for more than a fifth preset time period; and/or, after the refrigeration device (100) is operated in the second mode for more than a sixth preset time period, controlling the compressor (43) to increase sixth operation power; the sixth preset time length is longer than the fifth preset time length, and the sixth operating power is larger than the fifth operating power.
7. The control method according to claim 1, characterized in that:
when there is no cooling demand in both the first storage chamber and the second storage chamber (20), the compressor (43) does not supply refrigerant to the evaporator (41), and the fan (42) operates intermittently.
8. The control method according to claim 1, characterized in that:
when the second storage chamber (20) also has a cooling demand when the second mode is satisfied, the compressor (43) is operated at a higher power than the operating power of the compressor (43) in the second mode, and/or the fan (42) is operated at a higher power than the operating power of the fan (42) in the second mode.
9. A refrigeration appliance (100) comprising:
a first storage chamber (10);
a second storage chamber (20) in fluid communication with the first storage chamber (10) having a set temperature higher than the set temperature of the first storage chamber (10);
a refrigeration system (40) comprising an evaporator (41), a compressor (43) and a fan (42), wherein the evaporator (41) is positioned in an evaporator chamber (44) and used for cooling air flowing through, the fan (42) is suitable for driving cold air in the evaporator chamber (44) to flow through a first storage chamber (10) and a second storage chamber (20) in sequence and then return to the evaporator chamber (44), and the compressor (43) is suitable for driving refrigerant to flow through the evaporator (41) so as to reduce the temperature of the evaporator (41);
a control unit (30) electrically connected to the refrigeration system (40); the method is characterized in that:
-the control unit (30) is adapted to operate the fan (42) to cool the second storage compartment (20) by the first storage compartment (10) when only the second storage compartment (20) of the first and second storage compartments (10, 20) has a cooling demand; and is adapted to operate the compressor (43) to supply refrigerant to the evaporator (41) and the fan (42) when the first storage chamber (10) has a cooling demand.
10. The refrigeration appliance (100) according to claim 1, wherein:
the set temperature of the first storage chamber (10) and the set temperature of the second storage chamber (20) belong to a refrigeration temperature zone; or the set temperature of the first storage chamber (10) and the set temperature of the second storage chamber (20) belong to the same freezing temperature zone.
11. The refrigeration appliance (100) according to claim 1, wherein:
the difference between the set temperature of the first storage chamber (10) and the set temperature of the second storage chamber (20) is not more than 8 ℃.
12. The refrigeration appliance (100) according to claim 1, wherein:
the volume ratio of the first storage chamber (10) to the second storage chamber (20) is between 1/5 and 1/3.
13. The refrigeration appliance (100) according to claim 1, wherein:
the refrigeration appliance (100) comprises an outer shell (70) and an inner container (80) positioned inside the outer shell (70), wherein the inner container (80) defines a chamber (90), and the first storage chamber (10) and the second storage chamber (20) are both positioned in the chamber (90) and can be opened or closed by the same door body (50).
14. The refrigeration appliance (100) according to claim 1, wherein:
the refrigeration appliance (100) comprises a door body (50) and a container (13) positioned in the first storage chamber (10); when the fan (42) is operated, at least part of cold air in the first storage chamber (10) is suitable for flowing through a gap (1020) between the door body (50) and the container (13) to enter the second storage chamber (20).
15. The refrigeration appliance (100) according to claim 9 or 14, wherein:
the air cooled by the evaporator (41) is adapted to enter the first storage chamber (10) from the rear of the first storage chamber (10) and to flow out of the first storage chamber (10) from the upper front of the first storage chamber (10), and to flow into the second storage chamber (20) from the lower front of the second storage chamber (20) and to flow out of the second storage chamber (20) from the upper rear of the second storage chamber (20).
16. The refrigeration appliance (100) according to claim 1, wherein:
-the compressor (43) comprises at least a first compression power at which the compressor (43) operates when the first storage chamber (10) has a refrigeration demand and the second storage chamber (20) has no refrigeration demand, and a second compression power higher than the first compression power at which the compressor (43) operates when both the first storage chamber (10) and the second storage chamber (20) have a refrigeration demand; and/or the presence of a gas in the atmosphere,
the fan (42) comprises at least a first rotational power at which the fan (42) operates when there is a cooling demand in only the second storage compartment (20) and a second rotational power higher than the first rotational power at which the fan (42) operates otherwise.
17. The refrigeration appliance (100) according to claim 1, wherein:
the compressor (43) comprises a first compression power and a third compression power higher than the first compression power, the compressor (43) starts to operate at the first compression power when the first storage chamber (10) has a refrigeration demand; and after the compressor (43) operates at the first compression power for a fifth preset time period, the compressor operates at the third compression power.
18. The refrigeration appliance (100) according to claim 1, wherein:
the fan (42) comprises a first rotating power and a third rotating power higher than the first rotating power, and the fan (42) is started to operate at the first rotating power when only the second storage chamber (20) has a refrigerating requirement; the fan (42) is operated at the third rotational power after being operated at the first rotational power for a first preset time period; and/or the presence of a gas in the gas,
the fan (42) comprises a second rotating power and a fourth rotating power higher than the second rotating power, and when the first storage chamber (10) has a refrigerating requirement, the fan (42) starts to operate at the second rotating power; the fan (42) is operated at the fourth rotating power after being operated at the second rotating power for a third preset time period; wherein: the second rotational power is higher than the first rotational power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111120765.5A CN115854632A (en) | 2021-09-24 | 2021-09-24 | Refrigeration device and control method thereof |
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| CN202111120765.5A CN115854632A (en) | 2021-09-24 | 2021-09-24 | Refrigeration device and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469924A (en) * | 2023-12-28 | 2024-01-30 | 珠海格力电器股份有限公司 | Refrigeration equipment control method and device, refrigeration equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469924A (en) * | 2023-12-28 | 2024-01-30 | 珠海格力电器股份有限公司 | Refrigeration equipment control method and device, refrigeration equipment and storage medium |
| CN117469924B (en) * | 2023-12-28 | 2024-03-19 | 珠海格力电器股份有限公司 | Refrigeration equipment control method and device, refrigeration equipment and storage medium |
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