CN113701435A

CN113701435A - Refrigerator compartment air inlet structure, refrigerator and refrigerator temperature control method

Info

Publication number: CN113701435A
Application number: CN202111101865.3A
Authority: CN
Inventors: 冯云凌; 王铭坤; 廖虎; 李江伟; 文翔
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-26
Anticipated expiration: 2041-09-18
Also published as: CN113701435B

Abstract

The invention discloses an air inlet structure of a refrigerator compartment, a refrigerator and a refrigerator temperature control method, and belongs to the field of refrigerator temperature control; the air inlet structure of the intermediate chamber comprises a first air inlet and a second air inlet, and the sectional area of the first air inlet is larger than that of the second air inlet, so that the first air inlet with the large sectional area is used for rapidly cooling the intermediate chamber; the other second air inlet is uniformly distributed and has small and dense sectional area and is used for uniformly cooling food. This application scheme passes through wind deflector, and reasonable control cold wind gets into the room from two kinds of air intakes respectively, makes indoor food can freeze uniformly, relatively slowly, generates the ice crystal that the sectional area is little, can not destroy the cell when fresh-keeping.

Description

Refrigerator compartment air inlet structure, refrigerator and refrigerator temperature control method

Technical Field

The invention relates to the field of refrigerator temperature control, in particular to an air inlet structure of a refrigerator compartment, a refrigerator and a refrigerator temperature control method.

Background

Since foods have different storage conditions, the existing refrigerator is provided with a plurality of compartments for storing the foods. An air inlet is arranged in each chamber of the existing refrigerator and is connected with an air duct, and cold air in the air duct enters the chambers from the air inlets to cool the chambers in the food freezing process.

The cooling rate and temperature uniformity of food during freezing are very critical influencing factors. The food is not easy to store due to too fast or too slow cooling speed, the food is frozen rapidly due to too fast cooling speed, and needle-shaped ice crystals are generated to destroy cells, so that juice flows out; if the cooling rate is too slow, the bacteria are easy to breed. Temperature uniformity is also important, and non-uniform temperatures tend to cause the food to partially freeze and partially not freeze, which can affect the mouthfeel and taste of the food.

Different cooling speeds and temperature uniformity are needed in different stages of the food freezing process, but the cooling speed and temperature uniformity in different stages of the food freezing process cannot be provided due to the fact that only one air inlet is formed in the existing chamber.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an air inlet structure of a refrigerator compartment, a refrigerator and a temperature control method of the refrigerator, which aim to solve the problem that different cooling speeds and temperature uniformity are required at different stages of a food freezing process, but the cooling speeds and the temperature uniformity at different stages of the food freezing process cannot be provided due to the fact that only one air inlet is arranged in the existing compartment.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in a first aspect,

the utility model provides a compartment air inlet structure, includes compartment and wind channel, the compartment outside does the wind channel still includes:

the first air inlet is used for enabling cold air in the air duct to enter the compartment from the first air inlet;

the second air inlets are uniformly formed and used for enabling cold air in the air duct to enter the compartment from the second air inlets;

the wind shielding device is used for controlling whether cold wind in the air duct enters the compartment from the first air inlet and/or controlling whether cold wind in the air duct enters the compartment from the second air inlet;

the sectional area of the first air inlet is larger than that of the second air inlet.

Further, still include:

and the controller is connected with the wind shielding device and used for controlling the working state of the wind shielding device.

Further, still include:

the temperature sensor is arranged in the chamber, is electrically connected with the controller and is used for acquiring the temperature in the chamber and sending the temperature to the controller;

and the air door is arranged in the air duct and used for controlling the opening and closing under the control of the controller so as to control whether the cold air in the air duct can reach the first air inlet and the second air inlet.

Furthermore, a wind shielding device is respectively arranged at the first air inlet and the second air inlet.

Further, the air duct is arranged on the outer side of the back and the top of the compartment; the first air inlet is formed in the back of the compartment; the second air inlets are uniformly formed in the top of the chamber.

Further, the wind shielding device comprises a driving motor and a wind shield.

Furthermore, the wind shield is a rotatable or slidable baffle and is arranged in an air duct at the joint of the back part and the top part of the compartment, and the air flow direction in the air duct is an air duct flowing into the outside of the top part of the compartment from the air duct on the outside of the back part of the compartment; the wind deflector has two states;

when the wind shield is in the first state, the wind shield cuts off the air duct and is used for enabling cold air in the air duct to enter the compartment from the first air inlet and blocking the cold air in the air duct from entering the air duct on the outer side of the top of the compartment;

when the wind shield is in the second state, the wind shield blocks the first air inlet and is used for blocking cold air in the air duct from entering the compartment from the first air inlet and enabling the cold air in the air duct to enter the air duct at the top of the compartment and enter the compartment from the second air inlet.

In a second aspect of the present invention,

a refrigerator comprising the structure of any one of the above technical aspects.

In a third aspect,

a refrigerator temperature control method is applied to the refrigerator in the technical scheme and comprises the following steps:

when receiving information that a user puts food into a compartment; controlling the air door to be opened and controlling the wind shielding device to be in a first state, wherein when the wind shielding device is in the first state, cold air in the air duct only enters the compartment from the first air inlet;

acquiring the indoor temperature of the room;

and controlling the opening and closing of the air door and the state of the wind shielding device according to the temperature, wherein the states comprise a first state and a second state, and when the wind shielding device is in the second state, cold air in the air duct only enters the compartment from the second air inlet.

Further, the controlling the opening and closing of the damper and the state of the wind shielding device according to the temperature comprises:

when the temperature reaches a first preset temperature, controlling the wind shielding device to be in a second state;

controlling the opening and closing of the air door to enable the time length of the temperature to be maintained at a first preset temperature to be a first time length;

when the time length of the temperature maintained at the first preset temperature is a first time length, controlling the air door to be opened;

when the temperature reaches a second preset temperature, controlling the opening and closing of the air door so that the time for maintaining the temperature at the second preset temperature is a second time;

when the time length for maintaining the temperature at the second preset temperature is a second time length, controlling the wind shielding device to be in a first state;

when the temperature reaches a third preset temperature, controlling the air door to be closed; when the temperature reaches a fourth preset temperature, controlling the air door to be opened;

the first preset temperature is higher than the fourth preset temperature, the fourth preset temperature is higher than the second preset temperature, and the second preset temperature is higher than the third preset temperature.

Further, the controlling the opening and closing of the damper to maintain the temperature at the first preset temperature for a first time period or controlling the opening and closing of the damper to maintain the temperature at the second preset temperature for a second time period includes:

when the temperature is lower than the first preset temperature or the second preset temperature, controlling the air door to be closed;

and when the temperature is higher than the first preset temperature or the second preset temperature, controlling the air door to be opened.

Has the advantages that:

the technical scheme of the application provides a refrigerator compartment air inlet structure, a refrigerator and a refrigerator temperature control method, wherein the compartment air inlet structure comprises a first air inlet and a second air inlet, and the first air inlet with the large sectional area is used for rapidly cooling the compartment because the sectional area of the first air inlet is larger than that of the second air inlet; the other second air inlet is uniformly distributed and has small and dense sectional area and is used for uniformly cooling food. This application scheme passes through wind deflector, and reasonable control cold wind gets into the room from two kinds of air intakes respectively, makes indoor food can freeze uniformly, relatively slowly, generates the ice crystal that the sectional area is little, can not destroy the cell when fresh-keeping.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an air intake structure of a refrigerator compartment according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a wind shielding device in a first state according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a windshield assembly according to an embodiment of the present invention in a first state;

FIG. 4 is a flow chart illustrating a temperature control of a refrigerator according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating air inlet control during temperature control of a refrigerator according to an embodiment of the present invention;

FIG. 6 is a flow chart of a control process of a refrigerator temperature according to an embodiment of the present invention;

reference numerals: 1-compartment, 2-air duct, 3-first air inlet, 4-second air inlet, 5-wind shielding device, 51-wind shielding plate, 6-temperature sensor and 7-air door.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the technical solutions of the present invention is provided with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, an embodiment of the present invention provides a compartment air intake structure, including a compartment 1 and an air duct 2, where the air duct 2 is outside the compartment 1, and further including:

the first air inlet 3 is used for enabling cold air in the air duct 2 to enter the compartment 1 from the first air inlet 3;

the second air inlets 4 are uniformly arranged and used for enabling cold air in the air duct 2 to enter the compartment 1 from the second air inlets 4;

the wind shielding device 5 is used for controlling whether cold wind in the air duct 2 enters the compartment 1 from the first air inlet 3 and/or controlling whether cold wind in the air duct 2 enters the compartment 1 from the second air inlet 4 or not;

the sectional area of the first air inlet 3 is larger than that of the second air inlet 4.

The air inlet structure of the refrigerator compartment provided by the embodiment of the invention is provided with two different air inlets, one air inlet is a first air inlet with a large sectional area and is used for rapidly cooling the compartment; the other is a second air inlet which is uniformly distributed and has small and dense sectional area, so that the food can be uniformly cooled. Through the wind shielding device, two air inlets are reasonably used, so that food can be uniformly and slowly frozen, ice crystals with small cross sections are generated, and cells cannot be damaged while the food is kept fresh.

In one embodiment, as a supplement to the above embodiment of the invention, the method further includes:

and the controller is connected with the wind shielding device 5 and is used for controlling the working state of the wind shielding device 5. As shown in fig. 2 and 3, the outer sides of the back and the top of the compartment 1 are air ducts 2; the first air inlet 3 is arranged at the back of the compartment 1; the second air inlets 4 are uniformly arranged at the top of the compartment 1. The wind shielding device 5 includes a driving motor and a wind shield 51. The wind shield 51 is a rotatable or slidable baffle and is arranged in the air duct 2 at the joint of the back and the top of the compartment 1, and the wind shield 51 has two states; in fig. 2 and 3, the air flow direction in the air duct 2 is from the air duct 2 on the outer side of the back of the compartment 1 to the air duct 2 on the outer side of the top of the compartment 1.

As shown in fig. 2, when the wind deflector 51 is in the first state, the wind deflector 51 shields the air duct 2, so that the cold air in the air duct 2 can enter the compartment 1 from the first air inlet 3, and the cold air in the air duct 2 is prevented from entering the air duct 2 outside the top of the compartment 1.

As shown in fig. 3, when the wind deflector 51 is in the second state, the wind deflector 51 shields the first air inlet 3, so as to prevent the cold air in the air duct 2 from entering the compartment 1 from the first air inlet 3, and enable the cold air in the air duct 2 to enter the compartment 1 from the second air inlet 4.

As an optional implementation manner of the embodiment of the present invention, the method further includes:

the temperature sensor 6 is arranged in the chamber 1, is electrically connected with the controller, and is used for acquiring the temperature in the chamber 1 and sending the temperature to the controller;

and the air door 7 is arranged in the air duct 2 and used for controlling the opening and closing of the air door 7 under the control of the controller so as to control whether the cold air in the air duct 2 can reach the first air inlet 3 and the second air inlet 4.

It should be understood that only one set of wind shielding devices 5 is used in the embodiment of the present invention, and in some embodiments, one set of wind shielding devices 5 may be used at the first wind inlet 3 and the second wind inlet 4, respectively, that is, each set of wind shielding device 5 controls opening and closing of the corresponding wind inlet.

According to the compartment air inlet structure provided by the embodiment of the invention, the first air inlet is the air inlet with the large sectional area, so that the refrigerator compartment can be cooled at a higher speed, and the cooling performance is ensured; the second air inlet is an air inlet with small and dense sectional area, so that the temperature of each door of the object is uniform, and partial areas are prevented from being frozen. Through driving motor drive deep bead, make the air intake of two different forms work in turn, control room cooling rate and temperature homogeneity, the indoor temperature of food and temperature fluctuation nature in the control room of opening and shutting of cooperation air door make the refrigerator room indoor, and can freeze with slower speed, the ice crystal cross-sectional area of food is little, can not lose the cell to keep the taste and the taste of food.

In one embodiment, the invention further provides a refrigerator comprising the compartment air inlet structure mentioned in the above embodiment. Through this mesostructure, the refrigerator passes through driving motor drive deep bead, makes the air intake of two different forms work in turn, control room cooling rate and temperature homogeneity, cooperates opening and shutting of air door to control room temperature and temperature fluctuation nature simultaneously, makes the indoor food temperature of refrigerator room even, and can freeze with slower speed, and the ice crystal sectional area of food is little, can not lose the cell to keep the taste and the taste of food.

In an embodiment, the present invention further provides a method for controlling a temperature of a refrigerator, which is applied to the refrigerator provided in the above embodiment, as shown in fig. 4, and includes the following steps:

when receiving information that a user puts food into a compartment; the air door is controlled to be opened and the wind shielding device is controlled to be in a first state, and when the wind shielding device is in the first state, cold air in the air duct only enters the compartment from the first air inlet; the information that the user puts the food into the compartment is received can be sent by the user through the controller, or a sensor, such as a pressure sensor, is arranged in the compartment;

acquiring the indoor temperature of the compartment;

Specifically, when the temperature reaches a first preset temperature, the wind shielding device is controlled to be in a second state; controlling the opening and closing of the air door so that the time length for maintaining the temperature at the first preset temperature is a first time length; when the time length for maintaining the temperature at the first preset temperature is the first time length, controlling the air door to be opened; when the temperature reaches a second preset temperature, controlling the opening and closing of the air door so that the time for maintaining the temperature at the second preset temperature is a second time; when the time length for maintaining the temperature at the second preset temperature is the second time length, controlling the wind shielding device to be in the first state; when the temperature reaches a third preset temperature, controlling the air door to be closed; when the temperature reaches a fourth preset temperature, controlling the air door to be opened; the first preset temperature is higher than the fourth preset temperature, the fourth preset temperature is higher than the second preset temperature, and the second preset temperature is higher than the third preset temperature.

It should be noted that, the controlling the opening and closing of the damper to maintain the temperature at the first preset temperature for a first time period or controlling the opening and closing of the damper to maintain the temperature at the second preset temperature for a second time period includes: when the temperature is lower than the first preset temperature or the second preset temperature, controlling the air door to be closed; and when the temperature is higher than the first preset temperature or the second preset temperature, controlling the air door to be opened.

In order to further explain the control method provided by the embodiment of the invention, a specific control example is provided below.

After the user puts into food, the air door in the wind channel is opened, and the second air intake is sheltered from to the deep bead, makes cold wind get into the room from first air intake, because first air intake size is big, so can lower the temperature in the room relatively fast. When the temperature reaches T1(T1 is higher than the freezing point of food, such as 1.5 ℃), the wind shield blocks the first air inlet, so that cold air enters the compartment from the second air inlet, and the cold air enters the compartment from the uniformly distributed fine holes, so that the food is uniformly cooled. According to the temperature signal fed back by the temperature sensor, the air door is opened and closed at the starting and stopping temperature point, so that the compartment temperature is maintained at the temperature of T1 for 1.5h, and the temperature of the whole food can be reduced to the temperature of T1. Then the air door is fully opened, the compartment is continuously cooled to T2(T2 is lower than the freezing point of food, such as-2.5 ℃), and the food is in a supercooling state but cannot be frozen. The temperature is maintained for 2h at T2, so that the temperature of the food can be lowered to T2 as a whole. Then the second air inlet is closed, the first air inlet is opened, the temperature of the starting and stopping points of the air door is changed, and when the room temperature reaches T2-4 ℃, the air door is controlled to be closed; when the temperature reaches T2+1.5 ℃, the air door is controlled to be opened, so that the compartment generates large temperature fluctuation, the temperature fluctuation can stimulate the food to be frozen, the food is enabled to generate small-section-area ice crystals, the cells are not damaged while the food is kept fresh, and the taste and the flavor of the food are ensured. The specific air intake control is shown in fig. 5 and the damper control is shown in fig. 6.

According to the refrigerator temperature control method provided by the embodiment of the invention, the motor drives the wind shield to alternately open and close the first air inlet with a large sectional area and the second air inlet with a small and dense sectional area, so that food can be cooled quickly and has good temperature uniformity; through the temperature sensor and the controller, the difference between the opening temperature (starting point temperature) and the closing temperature (stopping point temperature) of the air door is increased when appropriate, so that the temperature fluctuation of the compartment is increased, a temperature stimulus is given to food, and the food is promoted to be frozen.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides a room air inlet structure, includes room and wind channel, the room outside does the wind channel, its characterized in that still includes:

2. The structure of claim 1, further comprising:

3. The structure of claim 2, further comprising:

4. The structure of claim 1, wherein: and the first air inlet and the second air inlet are respectively provided with a wind shielding device.

5. The structure of claim 1, wherein: the air duct is arranged on the outer sides of the back and the top of the compartment; the first air inlet is formed in the back of the compartment; the second air inlets are uniformly formed in the top of the chamber.

6. The structure of claim 5, wherein: the wind shielding device comprises a driving motor and a wind shield.

7. The structure of claim 6, wherein: the wind shield is a rotatable or slidable baffle and is arranged in an air channel at the joint of the back part and the top part of the compartment, and the air flow in the air channel flows into the air channel at the outer side of the top part of the compartment from the air channel at the outer side of the back part of the compartment; the wind deflector has two states;

8. A refrigerator, characterized in that: comprising the structure of any one of claims 1-7.

9. A refrigerator temperature control method is characterized in that: applied to the refrigerator of claim 8, comprising the steps of:

acquiring the indoor temperature of the room;

10. The method of claim 9, wherein: the state according to temperature control the open and shut of air door and rimq device includes:

11. The method of claim 10, wherein: the controlling the opening and closing of the air door to enable the time length of the temperature maintained at the first preset temperature to be the first time length or controlling the opening and closing of the air door to enable the time length of the temperature maintained at the second preset temperature to be the second time length comprises the following steps: