CN113834279B - Method and device for controlling compartment temperature and refrigerator - Google Patents

Method and device for controlling compartment temperature and refrigerator Download PDF

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Publication number
CN113834279B
CN113834279B CN202111124394.8A CN202111124394A CN113834279B CN 113834279 B CN113834279 B CN 113834279B CN 202111124394 A CN202111124394 A CN 202111124394A CN 113834279 B CN113834279 B CN 113834279B
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China
Prior art keywords
compartment
temperature difference
air
wind
fan
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CN202111124394.8A
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CN113834279A (en
Inventor
柳诗语
李琦
辛海亚
张玉昊
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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
    • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention discloses a compartment temperature control method and device and a refrigerator. The air guide channel is communicated with the upper part and the lower part of the chamber, an air inlet end of the air guide channel is provided with an air direction adjusting mechanism, and the upper part of the chamber is provided with a fan, and the method comprises the following steps: acquiring the temperature difference between the upper part of the chamber and the lower part of the chamber; and controlling the fan and the air direction adjusting mechanism according to the temperature difference so as to enable the temperature difference between the upper part of the chamber and the lower part of the chamber to be smaller than or equal to a preset temperature difference value. According to the invention, the air guide channel and the air direction adjusting mechanism are arranged, and the fan and the air direction adjusting mechanism are controlled according to the temperature difference between the upper part and the lower part of the compartment so as to control the cold quantity entering the compartment and the circulation direction of cold air in the compartment, so that the temperature difference between the upper part and the lower part of the compartment is smaller than or equal to the preset temperature difference value, the temperature uniformity of the compartment is improved, the circulation efficiency of the cold air is improved, and the temperature distribution uniformity of the compartment is realized.

Description

Method and device for controlling compartment temperature and refrigerator
Technical Field
The invention relates to the technical field of refrigerators, in particular to a method and a device for controlling compartment temperature and a refrigerator.
Background
In the normal running process of the refrigerator, the temperature of the lower layer in the compartment is too low due to the sinking of cold air during idle load; when the load is not unloaded, the upper layer of articles are accumulated, which can prevent the cold air from sinking, and further cause the lower layer temperature of the compartment to be overhigh. The two conditions can cause uneven distribution of the room temperature among the refrigerators, and the phenomenon of uneven distribution of the room temperature is particularly obvious when the compressor does not work in a shutdown stage and a defrosting stage.
Disclosure of Invention
The embodiment of the invention provides a method and a device for controlling compartment temperature and a refrigerator, which are used for at least solving the problem of uneven distribution of the compartment temperature of the refrigerator in the prior art.
In order to solve the above technical problem, an embodiment of the present invention provides a method for controlling a temperature of a compartment, in which a wind guide channel is disposed inside a door body of the compartment, the compartment is divided into an upper compartment portion and a lower compartment portion, the wind guide channel communicates the upper compartment portion and the lower compartment portion, a wind direction adjusting mechanism is disposed at a wind inlet end of the wind guide channel, and a fan is disposed at the upper compartment portion, the method including:
acquiring the temperature difference between the upper part of the compartment and the lower part of the compartment;
and controlling the fan and the wind direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value.
Optionally, the fan and the wind direction adjusting mechanism are controlled according to the temperature difference, so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value, and the method includes:
judging whether the temperature difference is larger than the preset temperature difference value or not;
and if the temperature difference is larger than the preset temperature difference value, comparing the temperature of the upper part of the compartment with the temperature of the lower part of the compartment, and controlling the fan and the wind direction adjusting mechanism according to the comparison result.
Optionally, controlling the fan and the wind direction adjusting mechanism according to the comparison result includes:
if the temperature of the upper part of the compartment is lower than that of the lower part of the compartment, reducing the rotating speed of the fan, and controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel;
and if the temperature of the upper part of the compartment is higher than that of the lower part of the compartment, controlling the fan to be in an open state, and controlling the wind direction adjusting mechanism to enable part of cold air to flow through the upper part of the compartment from the wind direction adjusting mechanism under the action of the wind direction adjusting mechanism.
Optionally, after determining whether the temperature difference is greater than the preset temperature difference value, the method further includes: and if the temperature difference is smaller than or equal to the preset temperature difference value, controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel.
Optionally, before obtaining the temperature difference between the upper part of the compartment and the lower part of the compartment, the method further comprises:
under the condition that the compressor is in a stop state, judging whether the compressor is in a defrosting stage at present;
and if the refrigerator is in the defrosting stage, controlling a switch door at the fan of the freezing chamber to be in a closed state.
Optionally, be provided with at least one shelf by last under to in the bathroom, when being provided with two or more shelves, the air inlet end of wind-guiding passageway is located the superiors' shelf department, the air-out end of wind-guiding passageway is located the lowest shelf department.
Optionally, a fan cover is arranged at a back plate of the compartment, at least one air outlet is arranged on the fan cover, and the air outlet direction of the air outlet is obliquely upward.
Optionally, the wind direction adjusting mechanism is a movable baffle, one end of the movable baffle is fixedly mounted to the wind guide channel, and the other end of the movable baffle is movable.
Optionally, when the movable baffle is parallel to the door liner, cold air enters the air guide channel and flows out of the air outlet end of the air guide channel; when the movable baffle is vertical to the door inner container, part of cold air flows through the upper part of the compartment from the movable baffle under the action of the movable baffle.
The embodiment of the invention also provides a compartment temperature control device, wherein an air guide channel is arranged on the inner side of a door body of a compartment, the compartment is divided into an upper compartment part and a lower compartment part, the air guide channel is communicated with the upper compartment part and the lower compartment part, an air inlet end of the air guide channel is provided with an air direction adjusting mechanism, the upper compartment part is provided with a fan, and the device comprises:
the acquisition module is used for acquiring the temperature difference between the upper part of the chamber and the lower part of the chamber;
and the control module is used for controlling the fan and the wind direction adjusting mechanism according to the temperature difference so as to enable the temperature difference between the upper part of the compartment and the lower part of the compartment to be smaller than or equal to a preset temperature difference value.
An embodiment of the present invention further provides a refrigerator, including: the compartment temperature control device is provided by the embodiment of the invention.
An embodiment of the present invention further provides a computer device, including: the device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the method of the embodiment of the invention.
Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the method according to the embodiments of the present invention.
By applying the technical scheme of the invention, the air guide channel and the air direction adjusting mechanism are arranged, and the fan and the air direction adjusting mechanism are controlled according to the temperature difference between the upper part and the lower part of the compartment so as to control the cold quantity entering the compartment and the circulation direction of cold air in the compartment, so that the temperature difference between the upper part and the lower part of the compartment is less than or equal to the preset temperature difference value, the temperature uniformity of the compartment is improved, the cold air circulation efficiency is improved, and the temperature distribution uniformity of the compartment is realized.
Drawings
Fig. 1 is a flowchart of a room temperature control method according to an embodiment of the present invention;
FIG. 2 is a schematic view illustrating a cooling air circulation in a refrigerating compartment according to a second embodiment of the present invention;
FIG. 3 is a schematic view of a second cooling air circulation in the refrigerating compartment according to a second embodiment of the present invention;
fig. 4 is a schematic view illustrating a cooling air circulation in a freezing chamber according to a second embodiment of the present invention;
FIG. 5 is a second schematic view of a cold air circulation in a freezer compartment according to a second embodiment of the present invention;
FIG. 6 is a flow chart of room temperature control according to a second embodiment of the present invention;
fig. 7 is a block diagram of a room temperature control device according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. 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 invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention and the accompanying drawings are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
The words "if", as used herein, may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
An alternative embodiment of the present invention is described in detail below with reference to the drawings.
Example one
The embodiment provides a compartment temperature control method, which can be applied to a refrigerator refrigeration running state (namely, a compressor is started) and a compressor stopping state, so that the compartment temperature of the refrigerator is uniformly distributed.
The air guide channel is arranged on the inner side of the door body of the compartment and is divided into an upper compartment part and a lower compartment part, the air guide channel is communicated with the upper compartment part and the lower compartment part, an air inlet end of the air guide channel is provided with an air direction adjusting mechanism, and a fan is arranged on the upper compartment part.
The upper and lower compartments may be divided according to actual circumstances, for example, the upper half of the compartment may be defined as the upper compartment and the lower half of the compartment may be defined as the lower compartment; for another example, the upper third of the interior of the compartment may be defined as the upper part of the compartment, and the lower third of the interior of the compartment may be defined as the lower part of the compartment.
Through setting up the wind-guiding passageway of intercommunication compartment upper portion and compartment lower part for the air-out can be drawn to the compartment lower part via wind-guiding passageway along compartment top, helps the air at the indoor overall cycle of compartment better, improves the circulation efficiency. If the air guide channel is not arranged, the air at the upper part of the compartment does not necessarily circulate in the compartment through the lower part of the compartment, most of the cold at the lower part of the compartment is from the natural sinking of the cold, and the circulated part of the cold is not obtained, so that the cold at the lower part of the compartment is reduced.
The wind direction adjustment mechanism can control the circulation direction of air in the compartment, and the different states of wind direction adjustment mechanism make the air circulate through wind-guiding channel, perhaps makes partial air follow wind direction adjustment mechanism and flow through compartment upper portion to control according to the demand, so that compartment temperature distribution is even.
Fig. 1 is a flowchart of a room temperature control method according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
s101, acquiring the temperature difference between the upper part of the chamber and the lower part of the chamber.
S102, controlling the fan and the air direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value.
The temperature sensor may be disposed in the compartment, specifically, the first temperature sensor is disposed on the upper portion of the compartment and used for monitoring the temperature of the upper portion of the compartment, and the second temperature sensor is disposed on the lower portion of the compartment and used for monitoring the temperature of the lower portion of the compartment. The temperature difference between the upper part of the compartment and the lower part of the compartment may be an absolute value of a difference between the temperature of the upper part of the compartment and the temperature of the lower part of the compartment. The temperature difference between the upper part of the chamber and the lower part of the chamber can reflect the uneven temperature distribution degree in the chamber. The preset temperature difference is an acceptable temperature difference, for example the preset temperature difference may be 1 ℃. The temperature difference between the upper part of the compartment and the lower part of the compartment is less than or equal to a preset temperature difference value, and the temperature distribution of the compartment is uniform.
This embodiment is through setting up wind-guiding passageway and wind direction adjustment mechanism, controls fan and wind direction adjustment mechanism according to the difference in temperature of compartment upper portion and compartment lower part to the cold volume and the circulation direction of cold air at the compartment that control got into the compartment make the difference in temperature of compartment upper portion and compartment lower part be less than or equal to the difference in temperature default, improve the homogeneity of compartment temperature, improve cold air circulation efficiency, realize that the compartment temperature is evenly distributed.
In one embodiment, controlling the fan and the wind direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part and the lower part of the compartment is less than or equal to a preset temperature difference value comprises: judging whether the temperature difference is greater than a preset temperature difference value or not; if the temperature difference is larger than the preset temperature difference value, the temperature of the upper part of the compartment is compared with the temperature of the lower part of the compartment, and the fan and the wind direction adjusting mechanism are controlled according to the comparison result.
The temperature difference is larger than the preset temperature difference value, the temperature distribution of the compartment is uneven, under the condition, the specific distribution condition of the temperature in the compartment can be determined by comparing the temperature of the upper part of the compartment with the temperature of the lower part of the compartment, and therefore the fan and the wind direction adjusting mechanism are controlled in a targeted mode according to the comparison result, and the temperature distribution of the compartment is even.
Specifically, according to the result of comparison control fan and wind direction adjustment mechanism includes:
(1) if the temperature of the upper part of the compartment is lower than that of the lower part of the compartment, the rotating speed of the fan is reduced, and the wind direction adjusting mechanism is controlled to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel. The fan speed may be reduced by a predetermined reduction, such as a first gear or step.
Room lower part temperature is high, reduces the fan rotational speed, reduces the entering of cold air to rise the temperature on room upper portion, reduce the difference in temperature from top to bottom, wind direction adjustment mechanism makes the cold air get into wind-guiding passageway and flows out the room lower part from the air-out end of wind-guiding passageway simultaneously, lets the cold air send room lower part better, guarantees the whole circulation of cold air in the room, thereby can make room upper portion and room lower part temperature distribution even.
(2) If the temperature of the upper part of the compartment is higher than that of the lower part of the compartment, the fan is controlled to be in an opening state, and the wind direction adjusting mechanism is controlled to enable part of cold air to flow through the upper part of the compartment from the wind direction adjusting mechanism under the action of the wind direction adjusting mechanism.
The temperature of the upper part of the compartment is high, the fan is kept in an open state, cold quantity supply is guaranteed, the wind direction adjusting mechanism enables part of cold air to flow through the upper part of the compartment from the wind direction adjusting mechanism under the action of the wind direction adjusting mechanism, namely, part of cold air does not downwards move under the action of the wind direction adjusting mechanism and circulates to the upper part of the compartment again and then sinks along one side close to a back plate of the compartment, and therefore small circulation is carried out on the upper part of the compartment through the cold air, the temperature of the upper part of the compartment can be reduced, and the uniformity of the temperature of the compartment is improved.
In one embodiment, after determining whether the temperature difference is greater than a preset temperature difference value, the method further includes: if the temperature difference is smaller than or equal to the preset temperature difference value, the room temperature distribution is uniform, adjustment operation is not needed at the moment, cold air circulation in the room is continuously guaranteed, the state that the room temperature distribution is uniform is maintained, specifically, the fan keeps the current state, and the wind direction adjusting mechanism is controlled to enable the cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel.
In order to solve the problem that the evaporator chamber may generate heat due to defrosting during the operation of the refrigerator and may be in a defrosting stage if the compressor is stopped, in one embodiment, before obtaining a temperature difference between an upper portion of the chamber and a lower portion of the chamber, the method further includes: judging whether the compressor is in a defrosting stage or not under the condition that the compressor is in a stop state; and if the refrigerator is in the defrosting stage, controlling a switch door at the fan of the freezing chamber to be in a closed state. If the defrosting stage is not carried out, namely the compressor is stopped because the temperature reaches the stop point, the switch door can be closed or opened at the moment. Therefore, the heat generated by defrosting can be prevented from influencing the temperature of the compartment due to the opening of the refrigerating fan, and then the uniformity of the temperature in the compartment at the defrosting stage is improved by matching the air guide channel and the wind direction adjusting mechanism, and the influence of defrosting on the temperature of the compartment is reduced.
At least one shelf is arranged in the chamber from top to bottom. When a shelf is arranged, the air inlet end of the air guide channel can be positioned above the shelf, and the air outlet end of the air guide channel can be positioned below the shelf. When two or more shelves are arranged, the air inlet end of the air guide channel is positioned at the shelf at the uppermost layer, and the air outlet end of the air guide channel is positioned at the shelf at the lowermost layer. The shelf is used for placing articles, and the upper part and the lower part of the compartment are divided based on the shelf, so that the control of the temperature uniformity of the compartment is facilitated.
The setting position of the wind direction adjusting mechanism can be in the same horizontal line with the shelf on the uppermost layer, so that under the condition that the temperature of the upper part of the compartment is higher than that of the lower part of the compartment, the cold air can be better controlled to flow through the upper part of the compartment along the direction provided by the wind direction adjusting mechanism by controlling the wind direction adjusting mechanism.
The air guide channel can be concave and concave to the door body, so that space is saved.
The back plate of the compartment is provided with a fan cover, the fan cover is provided with at least one air outlet, and the air outlet direction of the air outlet is obliquely upward. The air-out direction is oblique for cold air walks along the compartment top, avoids cold wind to blow the article on the shelf directly, piles up too much condition to the shelf article, also can avoid cold air to be blockked can't sink and pile up and lead to this temperature phenomenon too low at certain layer shelf.
If two or more air outlets are arranged, the air outlets can be arranged on the wind cover according to a certain rule, for example, the air outlets are uniformly distributed on the wind cover from top to bottom, or each shelf in the compartment corresponds to one air outlet, and the air outlets are arranged at the upper positions in the space above the shelves.
The wind direction adjusting mechanism can be a movable baffle, one end of the movable baffle is fixedly installed on the wind guide channel, and the other end of the movable baffle can move. The shape and size of the movable baffle are matched with the shape and size of the cross section of the air guide channel, and the matching means that the movable baffle can completely block the air inlet end of the air guide channel or block most of the air inlet end of the air guide channel in a certain state. Through the removal to adjustable fender, can control the wind-guiding passageway and whether carry out complete wind-guiding, if adjustable fender blocks up the air inlet end with certain angle totally or most, then the unable complete wind-guiding of wind-guiding passageway. Preferably, the movable range of the movable baffle is 90 degrees, when the plane where the movable baffle is located is parallel to the door liner, cold air can normally enter the air guide channel and flows out of the air outlet end of the air guide channel, and the air can be integrally circulated in the chamber through the air guide channel; when the plane where the movable baffle is located is perpendicular to the door liner, cold air cannot enter the air guide channel or a small amount of cold air enters the air guide channel, so that most of cold air can flow to the upper part of the compartment for small circulation due to the existence of the movable baffle.
Example two
The present embodiment describes the room temperature control scheme with reference to a specific example, however, it should be noted that the specific example is only for better explaining the present application and does not constitute a non-limiting limitation to the present application. The same or corresponding terms as those of the above-described embodiments are explained, and the description of the present embodiment is omitted.
Taking a hybrid cooling refrigerator as an example, the hybrid cooling refrigerator comprises a refrigerating chamber 11 and a freezing chamber 12, and as shown in fig. 2 and 3, a first shelf 111, a second shelf 112 and a third shelf 113 are sequentially installed in the refrigerating chamber 11 from top to bottom. The cold-stored compartment 11 is provided with cold-stored door 21, and cold-stored door 21 inboard is provided with wind-guiding passageway 3, and wind-guiding passageway 3 includes air inlet end and air-out end, and air inlet end department is provided with adjustable fender 4. The air inlet end of the air guiding channel 3 is disposed above the first shelf 111, and the air outlet end (i.e., the end) is disposed near the third shelf 113. A refrigerating fan cover 51 is arranged on the back plate of the refrigerating compartment 11, a refrigerating fan 61 and a refrigerating air outlet 71 are arranged at the position close to the refrigerating fan cover 51, and a refrigerating return air inlet 81 is arranged at the bottom of the refrigerating fan cover 51. A first refrigeration sensor 911 and a second refrigeration sensor 912 are also provided in the refrigeration compartment 11. The first refrigeration sensor 911 is used to monitor the temperature in the upper part of the refrigeration compartment 11 and the second refrigeration sensor 912 is used to monitor the temperature in the lower part of the refrigeration compartment 11.
As shown in fig. 4 and 5, a first shelf 111, a second shelf 112 and a third shelf 113 are sequentially installed in the freezing compartment 12 from top to bottom. The freezing chamber 12 is provided with a freezing door 22, the inner side of the freezing door 22 is provided with an air guide channel 3, the air guide channel 3 comprises an air inlet end and an air outlet end, and the air inlet end is provided with a movable baffle 4. The air inlet end of the air guide channel 3 is arranged above the first shelf 111, and the air outlet end (i.e. the tail end) is arranged near the third shelf 113. A freezing fan cover 52 is arranged at the back plate of the freezing compartment 12, a freezing fan 62 is arranged at the upper position in the freezing fan cover 52, a switch door 13 is arranged at one side of the freezing fan 62 close to the evaporator chamber, a freezing air outlet 72 is arranged at one side of the freezing fan cover 52 close to the compartment, and a freezing air return inlet 82 is arranged at the bottom of the freezing fan cover 52. A first freeze sensor 921 and a second freeze sensor 922 are also provided within the freeze compartment 12. A first freeze sensor 921 is used to monitor the temperature of the upper portion of the freezer compartment 12 and a second freeze sensor 922 is used to monitor the temperature of the lower portion of the freezer compartment 12. A refrigerated evaporator 10 is provided within the evaporator chamber.
In fig. 2, the movable baffle 4 is parallel to the refrigeration door 21, the cold air output from the refrigeration air outlet 71 enters the air guide channel 3 from the air inlet end through the top of the refrigeration compartment 11, and is then sent to the lower part of the refrigeration compartment 11 from the air outlet end of the air guide channel 3, and meanwhile, the cold air at the lower part of the refrigeration compartment 11 enters the refrigeration air hood 51 from the refrigeration air return opening 81 and is then output from the refrigeration air outlet 71, so that the whole circulation of the cold air in the refrigeration compartment 11 is realized through the air guide channel 3 and the movable baffle 4.
In fig. 3, the movable baffle 4 is perpendicular to the refrigeration door 21, and when the cold air output from the refrigeration air outlet 71 flows to the air inlet end of the air guide channel 3 through the top of the refrigeration compartment 11, due to the blockage of the movable baffle 4, a part of the cold air changes the air direction, flows to the first shelf 111, and sinks along one side of the first shelf 111 close to the back plate, so that the cold air performs a small cycle at the first shelf 111.
In fig. 4, the movable baffle 4 is parallel to the freezing door 22, the cold air output from the uppermost freezing air outlet 72 enters the air guiding channel 3 from the air inlet end through the top of the freezing chamber 12, and is then sent to the lower part of the freezing chamber 12 from the air outlet end of the air guiding channel 3, and the cold air at the lower part of the freezing chamber 12 enters the freezing fan housing 52 from the freezing air return inlet 82 and is then output from the freezing air outlet 72. The cool air output from the other freezing air outlets 72 moves toward the air guide passage 3 along the shelves above the freezing air outlets. This achieves a complete circulation of the cooling air in the freezer compartment 12 via the air duct 3 and the flap 4.
In fig. 5, the movable baffle 4 is perpendicular to the freezing door 22, and when the cold air output from the uppermost freezing air outlet 72 flows to the air inlet end of the air guide channel 3 through the top of the freezing compartment 12, due to the blocking of the movable baffle 4, a part of the cold air changes the air direction, flows to the first shelf 111, and sinks along one side of the first shelf 111 close to the back plate, so that the cold air performs a small cycle at the first shelf 111. And, in the sinking process, the cold air moves to the air guide channel 3 along the rest shelves along with the cold air output by the rest freezing air outlets 72.
As shown in fig. 6, the compartment temperature control includes the steps of:
s601, temperature control is performed on the refrigerating compartment 11, and the refrigerating compartment is currently in a cooling operation state or a compressor stop state.
S602, the temperature difference between the upper and lower layers of the refrigerating compartment 11 (i.e., the temperature difference between the upper part of the refrigerating compartment 11 and the lower part of the refrigerating compartment 11) is calculated.
S603, whether | Tlc1-Tlc2| >. DELTA Tlc is satisfied is judged, if yes, the process proceeds to S604, and if no, the process proceeds to S608. Tlc1 indicates the temperature value of the upper part of the refrigerating compartment 11 collected by the first refrigerating sensor 911, Tlc2 indicates the temperature value of the lower part of the refrigerating compartment 11 collected by the second refrigerating sensor 912, and Δ Tlc indicates the preset temperature difference value of the refrigerating compartment 11.
S604, judging whether Tlc1 > Tlc2 is satisfied, if yes, the process goes to S605, and if no, the process goes to S607.
S605, the cooling fan 61 is kept in the on state. Then, the process proceeds to S606.
S606, the movable baffle 4 rotates 90 degrees from the initial state (parallel to the door liner) to be perpendicular to the door liner. This step can be rotated 90 degrees clockwise or counterclockwise depending on the actual installation of the flapper 4.
S607, the refrigerating fan 61 decreases the primary rotational speed. Then, the process proceeds to S608.
And S608, keeping the movable baffle 4 in an initial state and enabling the movable baffle to be parallel to the door liner.
S609, the temperature of the freezing compartment 12 is controlled, and the cooling operation state is currently performed. The process proceeds to S614.
S610, temperature control is performed on the freezing compartment 12, and the compressor is currently in a compressor-off state. The process advances to S611.
And S611, judging whether the defrosting stage is in, if so, entering S612, and if not, entering S613.
S612, the switching door 13 is closed, and then the process proceeds to S614.
S613, the opening/closing door 13 remains open, and the process proceeds to S614.
S614, the temperature difference between the upper and lower layers of the freezing compartment 12 (i.e., the temperature difference between the upper portion of the freezing compartment 12 and the lower portion of the freezing compartment 12) is calculated.
S615, determine whether | Tld1-Tld2| >. Δ Tld, if yes, proceed to S616, if no, proceed to S608. Tld1 represents the temperature value of the upper part of the freezing chamber 12 collected by the first freezing sensor 921, Tld2 represents the temperature value of the lower part of the freezing chamber 12 collected by the second freezing sensor 922, and Δ Tld represents the preset temperature difference value of the freezing chamber 12.
S616, determine whether Tld1 > Tld2, if yes, proceed to S617, if no, proceed to S618.
S617, the freezing fan 62 is kept in the on state. Then, the process proceeds to S606.
At S618, the freezing fan 62 is reduced in rotation speed by one step. Then, the process proceeds to S608.
When the temperature difference between the upper layer and the lower layer of the compartment is less than or equal to the preset temperature difference value, the movable baffle 4 keeps the initial state (parallel to the door liner), and the cold air in the compartment circulates as shown in fig. 2 and 4. The air outlet of compartment sets up to the air-out that goes up to one side, and cold air walks along compartment top, can avoid cold wind to blow directly the article on the shelf, piles up too much condition to the shelf article, also can avoid cold air to be blockked to sink and pile up the phenomenon that leads to the temperature to hang down excessively at certain one deck shelf. The cold air comes out along the top of the compartment, and the whole circulation of the cold air in the compartment can be better assisted by the lower concave air guide channel 3 arranged on the door liner, so that the circulation efficiency is improved.
When the temperature difference between the upper layer and the lower layer of the compartment is greater than the preset temperature difference value, the method comprises two conditions:
(1) the upper portion of the compartment has a high temperature (for example, the temperature at the first shelf 111 is high), the compartment fan is kept in an open state, the movable baffle 4 rotates 90 degrees counterclockwise (perpendicular to the door liner), the movable baffle 4 is arranged near the same horizontal line as the first shelf 111, a part of cold air circulates to the first shelf 111 again along the baffle direction, sinks along the inner side of the first shelf 111 (in the freezing compartment 12, the part of cold air moves to the air guide channel 3 along the rest of the shelves along the air outlet direction of the rest of the air outlets in the sinking process), and the cold air is subjected to small circulation at the first shelf 111, so that the temperature at the first shelf 111 is reduced.
(2) The lower part of the compartment has high temperature (for example, the temperature at the third shelf 113 is high), the rotating speed of the compartment fan is reduced, and the entering of cold air is reduced, so that the temperature at the first shelf 111 is increased, the vertical temperature difference is reduced, the movable baffle 4 keeps an initial state (parallel to the door liner), and the cold air is better sent to the position of the third shelf 113 through the air guide channel 3.
In the freezing chamber 12, if the defrosting stage is currently performed, the switch door 13 on the inner side of the freezing fan 62 is closed, so that the influence of the opening of the fan on the temperature in the chamber by hot air is avoided, and the influence of defrosting on the temperature in the chamber is reduced. Then, the temperature difference between the upper layer and the lower layer of the freezing compartment 12 is judged, and the freezing fan 62 and the movable baffle 4 are controlled to be opened and moved according to the method shown in the figure 6, so as to improve the uniformity of the temperature in the compartment during the defrosting stage.
In the embodiment, the air guide channel 3 and the movable baffle 4 are arranged, the movement of the movable baffle 4 is controlled according to the temperature difference between the upper layer and the lower layer of the compartment, the circulation efficiency of cold air in the compartment is improved, the compartment temperature can be uniformly distributed in the refrigeration operation stage, the shutdown stage and the defrosting stage of the refrigerator, and the influence of defrosting on the compartment temperature can be reduced.
EXAMPLE III
Based on the same inventive concept, the present embodiment provides a room temperature control device, which can be used to implement the room temperature control method described in the above embodiments. The device may be implemented by software and/or hardware, and the device may be generally integrated into a controller of the refrigerator. The air guide channel is arranged on the inner side of the door body of the compartment and is divided into an upper compartment part and a lower compartment part, the air guide channel is communicated with the upper compartment part and the lower compartment part, an air inlet end of the air guide channel is provided with an air direction adjusting mechanism, and a fan is arranged on the upper compartment part. For the specific structure, please refer to the foregoing embodiments, which are not repeated in this embodiment.
Fig. 7 is a block diagram of a room temperature control device according to a third embodiment of the present invention, and as shown in fig. 7, the device includes:
an obtaining module 701, configured to obtain a temperature difference between an upper portion of the chamber and a lower portion of the chamber;
and the control module 702 is used for controlling the fan and the wind direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value.
Optionally, the control module 702 includes:
the judging unit is used for judging whether the temperature difference is larger than the preset temperature difference value or not;
and the first control unit is used for comparing the temperature of the upper part of the compartment with the temperature of the lower part of the compartment if the temperature difference is greater than the preset temperature difference value, and controlling the fan and the wind direction adjusting mechanism according to a comparison result.
Optionally, the first control unit includes:
the first control subunit is used for reducing the rotating speed of the fan and controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel if the temperature of the upper part of the compartment is lower than the temperature of the lower part of the compartment;
and the second control subunit is used for controlling the fan to be in an opening state if the temperature of the upper part of the compartment is higher than that of the lower part of the compartment, and controlling the wind direction adjusting mechanism to enable part of cold air to flow from the wind direction adjusting mechanism to the upper part of the compartment under the action of the wind direction adjusting mechanism.
Optionally, the control module 702 further includes: and the second control unit is used for controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel if the temperature difference is smaller than or equal to the preset temperature difference value.
Optionally, the apparatus further comprises:
the judging module is used for judging whether the compressor is in a defrosting stage currently under the condition that the compressor is in a shutdown state before the temperature difference between the upper part of the chamber and the lower part of the chamber is obtained;
and the opening and closing door control module is used for controlling the opening and closing door at the fan of the freezing chamber to be in a closed state if the defrosting stage is in progress.
Optionally, be provided with at least one shelf by last under to in the bathroom, when being provided with two or more shelves, the air inlet end of wind-guiding passageway is located the superiors' shelf department, the air-out end of wind-guiding passageway is located the lowest shelf department.
Optionally, a fan cover is arranged at a back plate of the compartment, at least one air outlet is arranged on the fan cover, and the air outlet direction of the air outlet is obliquely upward.
Optionally, the wind direction adjusting mechanism is a movable baffle, one end of the movable baffle is fixedly mounted to the wind guide channel, and the other end of the movable baffle is movable.
Optionally, when the movable baffle is parallel to the door liner, cold air enters the air guide channel and flows out of the air outlet end of the air guide channel; when the movable baffle is vertical to the door inner container, part of cold air flows through the upper part of the compartment from the movable baffle under the action of the movable baffle.
The device can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
Example four
The embodiment provides a refrigerator, including: the room temperature control device according to the above embodiment. The refrigerator may be a mix-cool refrigerator, an air-cooled refrigerator, and a direct-cooled refrigerator.
EXAMPLE five
The present embodiment provides a computer device, including: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method of the above embodiments when executing the computer program.
EXAMPLE six
The present embodiment provides a non-transitory computer-readable storage medium, on which a computer program is stored, wherein the computer program is configured to implement the steps of the method of the above embodiment when executed by a processor.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (12)

1. A compartment temperature control method is characterized in that a wind guide channel is arranged on the inner side of a door body of a compartment, the compartment is divided into a compartment upper part and a compartment lower part, the wind guide channel is communicated with the compartment upper part and the compartment lower part, a wind direction adjusting mechanism is arranged at a wind inlet end of the wind guide channel, a fan is arranged on the compartment upper part, and the method comprises the following steps:
acquiring the temperature difference between the upper part of the chamber and the lower part of the chamber;
controlling the fan and the wind direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value;
at least one shelf is arranged in the compartment from top to bottom, when two or more shelves are arranged, the air inlet end of the air guide channel is positioned at the shelf at the uppermost layer, and the air outlet end of the air guide channel is positioned at the shelf at the lowermost layer.
2. The method of claim 1, wherein controlling the fan and the wind direction adjustment mechanism based on the temperature difference such that the temperature difference between the upper compartment portion and the lower compartment portion is less than or equal to a preset temperature difference value comprises:
judging whether the temperature difference is larger than the preset temperature difference value or not;
and if the temperature difference is larger than the preset temperature difference value, comparing the temperature of the upper part of the compartment with the temperature of the lower part of the compartment, and controlling the fan and the wind direction adjusting mechanism according to the comparison result.
3. The method of claim 2, wherein controlling the fan and the wind direction adjustment mechanism based on the comparison comprises:
if the temperature of the upper part of the compartment is lower than that of the lower part of the compartment, reducing the rotating speed of the fan, and controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel;
and if the temperature of the upper part of the compartment is higher than that of the lower part of the compartment, controlling the fan to be in an open state, and controlling the wind direction adjusting mechanism to enable part of cold air to flow through the upper part of the compartment from the wind direction adjusting mechanism under the action of the wind direction adjusting mechanism.
4. The method of claim 2, after determining whether the temperature difference is greater than the preset temperature difference value, further comprising:
and if the temperature difference is smaller than or equal to the preset temperature difference value, controlling the wind direction adjusting mechanism to enable cold air to enter the wind guide channel and flow out of the wind outlet end of the wind guide channel.
5. The method of claim 1, further comprising, prior to obtaining the temperature difference between the upper compartment portion and the lower compartment portion:
judging whether the compressor is in a defrosting stage or not under the condition that the compressor is in a stop state;
and if the refrigerator is in the defrosting stage, controlling a switch door at the fan of the freezing chamber to be in a closed state.
6. The method according to any one of claims 1 to 5, wherein a fan housing is arranged at a back plate of the compartment, at least one air outlet is arranged on the fan housing, and the air outlet direction of the air outlet is obliquely upward.
7. The method as claimed in any one of claims 1 to 5, wherein the wind direction adjusting mechanism is a movable flap, one end of the movable flap is fixedly mounted to the wind guide passage, and the other end of the movable flap is movable.
8. The method as claimed in claim 7, wherein when the movable baffle is parallel to the door liner, the cold air is made to enter the air guiding channel and flow out from the air outlet end of the air guiding channel;
when the movable baffle is vertical to the door inner container, part of cold air flows through the upper part of the compartment from the movable baffle under the action of the movable baffle.
9. The utility model provides a room temperature controlling means, its characterized in that, the door body inboard of compartment is provided with the wind-guiding passageway, the compartment divide into compartment upper portion and compartment lower part, the wind-guiding passageway intercommunication compartment upper portion with the compartment lower part, the air inlet end of wind-guiding passageway is provided with wind direction adjustment mechanism, compartment upper portion is provided with the fan, the device includes:
the acquisition module is used for acquiring the temperature difference between the upper part of the chamber and the lower part of the chamber;
the control module is used for controlling the fan and the wind direction adjusting mechanism according to the temperature difference so that the temperature difference between the upper part of the compartment and the lower part of the compartment is smaller than or equal to a preset temperature difference value;
at least one shelf is arranged in the compartment from top to bottom, when two or more shelves are arranged, the air inlet end of the air guide channel is positioned at the shelf at the uppermost layer, and the air outlet end of the air guide channel is positioned at the shelf at the lowermost layer.
10. A refrigerator, characterized by comprising: the compartment temperature control device according to claim 9.
11. A computer device, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 8 when executing the computer program.
12. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any of claims 1 to 8.
CN202111124394.8A 2021-09-24 2021-09-24 Method and device for controlling compartment temperature and refrigerator Active CN113834279B (en)

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CN104296490B (en) * 2014-10-09 2017-01-11 合肥美的电冰箱有限公司 Refrigerator and control method and system thereof
CN107062750B (en) * 2017-03-14 2019-09-20 海信（山东）冰箱有限公司 A kind of wind cooling refrigerator and its control method
CN109990532A (en) * 2017-12-29 2019-07-09 青岛海尔股份有限公司 Refrigerator with door body hothouse
CN108278808A (en) * 2018-01-08 2018-07-13 安徽康佳同创电器有限公司 A kind of refrigerator of shower wind air channel structure
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EP3674631B1 (en) * 2018-12-28 2024-04-24 LG Electronics Inc. Refrigerator and method for controlling the same
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