Refrigerator

Abstract

The invention discloses a refrigerator, and relates to the technical field of refrigeration equipment, the refrigerator comprises a box body, a first container, a cover plate, an air duct assembly and an adjusting assembly, the first container is provided with a first opening; the cover plate is arranged at the first opening, the cover plate is provided with a plurality of ventilation micropores, and the ventilation micropores are configured to allow air inside and outside the first container to circulate; the air duct assembly is used for introducing cold air into the refrigeration chamber; the adjusting assembly is used for adjusting the size of a gap between the cover plate and the first container. The first container creates a relatively closed space for moisturizing through the cover plate provided with the breathable micropores, and cold air flowing through the upper part of the cover plate permeates into the first container through the breathable micropores, so that the cooling speed can be increased. The gap between the cover plate and the first container is increased or decreased through the adjusting assembly, the flow of airflow entering the first container is controlled, the humidity and temperature in the first container can be adjusted, and the storage condition requirements of different kinds of food materials are met.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art

[0002] As we all know, in addition to temperature, humidity is also one of the important factors that affect the storage of fruits and vegetables. Maintaining a high humidity environment helps extend the shelf life of fruits and vegetables. The simplest way to maintain high humidity in the refrigerator is to seal the drawer so that the external cold air cannot take away the moisture released by the fruits and vegetables in the drawer, so that the drawer can maintain a high humidity state for a long time. However, after the drawer is sealed, the external cold air cannot enter the drawer to exchange heat due to the closed drawer, resulting in a very slow cooling speed of the ingredients, which cannot be quickly reduced to the set temperature, and cannot meet the storage conditions of the humidity required by different types of ingredients, affecting the preservation effect. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a refrigerator that can meet the storage conditions of humidity required by different types of food.

[0004] A refrigerator according to an embodiment of the present invention comprises a box body, a first container, a cover plate, an air duct assembly and an adjustment assembly, wherein the box body is provided with a refrigeration compartment; the first container is located in the refrigeration compartment, and the first container has a first opening; the cover plate is provided at the first opening, and the cover plate is provided with a plurality of air permeable micropores, and the air permeable micropores are configured to allow air to circulate inside and outside the first container; the air duct assembly is used to introduce cold air into the refrigeration compartment; and the adjustment assembly is used to adjust the gap size between the cover plate and the first container.

[0005] The refrigerator according to the embodiment of the present invention has at least the following beneficial effects: the first container creates a relatively closed space for moisture preservation by means of the cover plate provided with air-permeable micropores, and the cold air flowing through the upper part of the cover plate penetrates into the first container through the air-permeable micropores, which can increase the cooling speed. The adjustment component is used to increase or decrease the gap between the cover plate and the first container, and the flow rate of airflow entering the first container is controlled, so that the humidity and temperature in the first container can be adjusted to meet the storage condition requirements of different types of food.

[0006] According to some embodiments of the present invention, the refrigerator also includes a second container, the second container has a second opening, the first container is located at the second opening, and the second container is provided with a second vent connected to the outside; the air duct component controls the direction of the airflow and has a first state and a second state, when the air duct component is in the first state, the airflow avoids the second vent and blows toward the cover; when the air duct component is in the second state, the airflow blows toward the second vent and the cover.

[0007] According to some embodiments of the present invention, the air duct assembly is provided with an air supply damper and a first air duct and a second air duct that are independent of each other, the first air outlet of the first air duct faces the cover plate, the first container is provided with a first vent connected to the outside, the second air outlet of the second air duct faces the first vent, the third air outlet of the second air duct faces the second vent, and the air supply damper is used to open the first air duct and / or the second air duct.

[0008] According to some embodiments of the present invention, the air duct assembly is provided with an air supply damper and a first air duct and a second air duct that are independent of each other, wherein the first air outlet of the first air duct faces the cover plate, and the third air outlet of the second air duct faces the second ventilation outlet, and the air supply damper is used to open the first air duct and / or the second air duct.

[0009] According to some embodiments of the present invention, the air duct assembly is provided with a wind control device and an air supply duct, the air supply duct having a first air outlet and a third air outlet, the first air outlet facing the cover plate, the third air outlet facing the second air outlet, and the wind control device is used to open or close the third air outlet.

[0010] According to some embodiments of the present invention, the wind control device includes a wind shield and a first driving member, and the first driving member drives the wind shield to move so as to open or close the third air outlet.

[0011] According to some embodiments of the present invention, the adjustment assembly includes a top block, which is disposed on the wind shield, and a first driving member drives the wind shield to move in an up-down direction.

[0012] According to some embodiments of the present invention, the adjustment assembly includes a second driving member, and a connecting portion is provided at one end of the cover plate close to the air duct assembly. The second driving member pushes the connecting portion to cause the cover plate to flip upward or downward.

[0013] According to some embodiments of the present invention, the adjustment assembly includes a top block, the second driving member is connected to the connecting portion via the top block, the connecting portion is provided with a positioning groove, and the top block is located in the positioning groove.

[0014] According to some embodiments of the present invention, a rotating shaft is provided at one end of the cover plate facing away from the air duct assembly, and the box body is provided with a limiting portion suitable for accommodating the rotation of the rotating shaft.

[0015] According to some embodiments of the present invention, a variable temperature chamber is provided in the housing, the first container, the cover plate and the second container are located in the variable temperature chamber, the variable temperature chamber can operate in a first gear and a second gear, and the temperature of the variable temperature chamber in the first gear is higher than the temperature of the variable temperature chamber in the second gear.

[0016] According to some embodiments of the present invention, when the variable temperature compartment is at the first gear position, the temperature of the variable temperature compartment is from 0°C to 5°C; when the variable temperature compartment is at the second gear position, the temperature of the variable temperature compartment is below -1°C.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0020] Figure 2 is Figure 1 a partial cross-sectional view of the refrigerator shown in the A-A direction;

[0021] Figure 3 is Figure 2 a schematic diagram of the cover plate shown;

[0022] Figure 4 is a schematic diagram of a gas flow direction of a refrigerator according to an embodiment of the present invention;

[0023] Figure 5 is another schematic diagram of a gas flow direction of a refrigerator according to an embodiment of the present invention;

[0024] Figure 6 is Figure 1 a cross-sectional view of an embodiment in the B-B direction of the refrigerator shown;

[0025] Figure 7 is Figure 6 a schematic diagram of a gas flow direction of an air duct assembly shown;

[0026] Figure 8 is Figure 6 another schematic diagram of a gas flow direction of the air duct assembly shown;

[0027] Figure 9 is Figure 6 another schematic diagram of a gas flow direction of the air duct assembly shown;

[0028] Figure 10 is Figure 1 a cross-sectional view of an embodiment in the B-B direction of the refrigerator shown;

[0029] Figure 11 is Figure 10 a schematic diagram of the air duct assembly shown;

[0030] Figure 12 For Figure 11 the enlarged view at C shown;

[0031] Figure 13 For Figure 11 the exploded view of the air duct assembly shown;

[0032] Figure 14 the schematic diagram of the refrigerator of the embodiment of the present invention after adding the adjustment component;

[0033] Figure 15 For Figure 14 the enlarged view at D shown (the cover plate is in the open state);

[0034] Figure 16 For Figure 14 the enlarged view at D shown (the cover plate is in the closed state);

[0035] Figure 17 For Figure 14 the enlarged view at E shown;

[0036] Figure 18 the schematic diagram of the cooperation between the adjustment component and the cover plate of an embodiment;

[0037] Figure 19 the schematic diagram of the cooperation between the adjustment component and the cover plate of another embodiment;

[0038] Figure 20 For Figure 19 the schematic diagram of the wind deflector shown.

[0039] Reference numerals:

[0040] 101, box body; 102, variable temperature chamber; 103, first container; 104, second container; 105, first opening; 106, second opening; 107, drawer board; 108, moisture preservation film;

[0041] 201, cover plate; 202, air supply air damper; 203, air duct cover shell; 204, freezer; 205, air duct foam; 206, first air outlet; 207, second ventilation opening; 208, third air outlet; 209, front panel; 210, bent plate; 211, humidity adjustment space; 212, first ventilation opening; 213, second air outlet; 214, refrigerator compartment;

[0042] 301, breathable micropores;

[0043] 401, return air opening;

[0044] 601, first air duct; 602, second air duct; 603, freezer air duct;

[0045] 701, first air outlet branch duct; 702, second air outlet branch duct;

[0046] 1001, air supply duct;

[0047] 1101, wind deflector;

[0048] 1201, gear; 1202, rack portion;

[0049] 1301, first driving member; 1302, chute; 1303, grille hole;

[0050] 1501, second driving member; 1502, connecting portion; 1503, top block; 1504, positioning groove;

[0051] 1701, rotating shaft; 1702, limiting portion;

[0052] 1901, supporting portion. Detailed implementation manner

[0053] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0055] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0056] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0057] In air-cooled refrigerators, due to the direct blowing of the air supply, it is easy to cause the humidity in the freezer compartment of the refrigerator to be too low. Especially when the cold air blows directly towards the food in the freezer compartment, it is easy to cause the moisture in the food to be lost more quickly. In particular, the surface of the food loses a lot of water, the dry matter loss is serious, and the oxidation is aggravated. To solve the problem of nutrient loss caused by excessive moisture loss, some products make the drawers airtight, so that the external cold air cannot take away the moisture released by the fruits and vegetables in the drawers. Therefore, the drawers can maintain a high humidity state for a long time. However, such airtight drawers cannot cool down quickly and do not have the function of adjusting humidity.

[0058] Referring to Figure 1 As shown, the refrigerator according to the embodiment of the present invention includes a box body 101, and a variable temperature compartment 102 is provided inside the box body 101. The refrigerator further includes a first container 103 and a second container 104. Both the first container 103 and the second container 104 are located in the variable temperature compartment 102, and the first container 103 is located above the second container 104.

[0059] Referring to Figure 1 As shown, it can be understood that the first container 103 is configured as an upper sliding tray, that is, the top of the first container 103 has a first opening 105, and the second container 104 is configured as a lower drawer, that is, the top of the second container 104 has a second opening 106. In other words, the first container 103 and the second container 104 can be combined into a variable temperature drawer. The variable temperature drawer includes an upper sliding tray and a lower drawer. The upper sliding tray is arranged on the upper part of the lower drawer. After the lower drawer is pulled out, the user can pull out or push in the upper sliding tray to achieve forward and backward sliding, and can choose to take out the food in the upper sliding tray or the lower drawer. When the upper sliding tray completely overlaps the upper part of the lower drawer, a relatively airtight space is formed in the lower drawer. The gap range between the second container 104 and the first container 103 is 1 mm to 5 mm, which has a good moisture preservation effect on the naked food (such as food without a fresh-keeping bag wrapped), and can keep the internal humidity of the second container 104 at the level of 90%-95%. The existence of the gap can facilitate the sliding of the second container 104 to smoothly perform the pulling out or pushing in action of the second container 104. And when cold air is introduced into the second container 104, it can make the air flow entering the second container 104 flow out and maintain a certain pressure.

[0060] It should be noted that the first container 103 and the second container 104 can also be arranged side by side in the left-right direction. Correspondingly, the first opening 105 and the second opening 106 are arranged facing the left-right direction.

[0061] Referring to Figure 1 and Figure 2As shown, it can be understood that the second container 104 is provided with a drawer board 107. The drawer board 107 is located at the front end of the second container 104 and extends upward to the front side of the first container 103. When the first container 103 and the second container 104 are in the closed position, the drawer board 107 can close the entrance of the variable temperature chamber 102. Compared with the scheme of using the front end of the first container 103 to close the upper half of the entrance of the variable temperature chamber 102 and using the front end of the second container 104 to close the lower half of the entrance of the variable temperature chamber 102, the drawer board 107 of the second container 104 closes the entire entrance of the variable temperature chamber 102, which can reduce the gap between the first container 103 and the second container 104, improve the sealing performance, and reduce cold air leakage.

[0062] Referring to Figure 2 As shown, it can be understood that the refrigerator further includes a cover plate 201. The cover plate 201 is arranged at the first opening 105 so that the first container 103 forms a relatively airtight space. For example, the gap between the cover plate 201 and the first container 103 ranges from 1 mm to 5 mm. The existence of the gap can facilitate the sliding of the first container 103 to smoothly perform the extraction or insertion operation of the first container 103. Referring to Figure 3 As shown, the cover plate 201 is provided with a plurality of breathable micropores 301, and the breathable micropores 301 are configured to allow air to circulate inside and outside the first container 103.

[0063] It can be understood that in some embodiments, the proportion of the opening area of all the breathable micropores 301 in the area of the cover plate 201 ranges from 20% to 22%, which can maintain the humidity inside the first container 103 at the level of 80%-90%. When the proportion of the opening area is less than 20%, it is not conducive to cold air entering the first container 103 for heat exchange, resulting in a slow cooling rate and not meeting the cooling requirements. When the proportion of the opening area is greater than 22%, it is not conducive to moisture retention inside the first container 103, and the humidity is less than 80%.

[0064] Referring to Figure 3 As shown, it can be understood that in some embodiments, the aperture diameter of the breathable micropores 301 is D, and the size range of D is from 3.7 mm to 3.9 mm. When D is less than 3.7 mm, it is difficult to achieve air circulation inside and outside the first container 103. When D is greater than 3.9 mm, it is difficult to maintain a high humidity state inside the first container 103.

[0065] Referring to Figure 3 As shown, it can be understood that in some embodiments, the plurality of breathable micropores 301 are divided into multiple rows, and the distance between two adjacent breathable micropores 301 in each row is L1. The value of L1 can be selected as 8 mm, 10 mm, 12 mm, etc. Hereinafter, the value of L1 is taken as 10 mm for illustration.

[0066] Referring to Figure 3As shown, it can be understood that in some embodiments, the row spacing between two adjacent rows is L2, and the value of L2 can be selected as 3mm, 4mm, 5mm, 6mm, 8mm, etc. Hereinafter, the value of L2 is taken as 5mm for illustration.

[0067] Referring to Figure 3 As shown, it can be understood that in some embodiments, the adjacent two rows of breathable micropores 301 are arranged in a staggered manner. That is to say, there is a group of breathable micropores 301, and this group of breathable micropores 301 has 4 breathable micropores 301 forming a square, the size of the square is 10mm * 10mm, and there is also a breathable micropore 301 opened in the middle of these 4 breathable micropores 301, and this breathable micropore 301 is located at the intersection of the diagonals of the above square. This can effectively utilize the space and make the air flow distribution more uniform.

[0068] Referring to Figure 2 As shown, it can be understood that the second container 104 is provided with a second ventilation opening 207. The second ventilation opening 207 communicates the inside and the outside of the second container 104, and can enable the cold air generated by the refrigeration system in the refrigerator to enter the inside of the second container 104, realizing rapid cooling, and can also store some items with lower humidity requirements.

[0069] It should be noted that in some other embodiments, a refrigerating chamber 214 is provided in the cabinet 101, and the first container 103 and the second container 104 can also be both arranged in the refrigerating chamber 214, and the air flows of the first container 103 and the second container 104 can be correspondingly adjusted according to different temperature and humidity requirements.

[0070] Referring to Figure 2 As shown, it can be understood that the refrigerator further includes an air duct assembly for delivering cold air to the first container 103 and the second container 104. For example, the air duct assembly includes an air duct cover 203. A supply air damper 202 is provided at the bottom of the air duct cover 203. The supply air damper 202 connects the freezer compartment 204 and the variable temperature compartment 102, and its function is to let the freezer compartment 204 deliver cold air to the variable temperature compartment 102 for temperature control. A duct foam 205 is provided inside the variable temperature air duct cover 203, and a channel for guiding the air flow direction is formed in the duct foam 205. By controlling the air flow direction, the air duct assembly has different working states, and then the refrigerator enters different working modes.

[0071] Referring to Figure 2 and Figure 4As shown, it can be understood that the air duct assembly has a first state. The air duct assembly has a first air outlet 206, and the first air outlet 206 is located at the rear side of the first container 103. Airflow blows out from the first air outlet 206 and flows above the cover plate 201, then flows downward along the front side of the first container 103, and finally flows back to the return air outlet 401 from the bottom of the second container 104. During the whole process, no airflow directly blows into the interior of the second container 104. That is, when the air duct assembly is in the first state, the airflow blows towards the cover plate 201 and avoids the second ventilation opening 207. The cold air flowing through the upper part of the cover plate 201 seeps into the interior of the first container 103 through the air-permeable micropores 301, which can increase the cooling speed. However, only part of the water vapor can escape to the outside of the cover plate 201 through the air-permeable micropores 301, which helps to maintain the internal humidity of the first container 103. At the same time, part of the water vapor escapes to the outside of the cover plate 201 through the air-permeable micropores 301, which can prevent the berry fruits in the first container 103 from mildewing due to excessive humidity and meet the humidity requirements of 85%-95% for fruit ingredients. Since the cold air does not directly enter the first container 103 and the second container 104, the cold air cannot easily take away the moisture inside the first container 103 and the second container 104. The first container 103 and the cover plate 201 cooperate to form a relatively enclosed space, and the first container 103 and the second container 104 cooperate to form a relatively enclosed space, ensuring that the interiors of the first container 103 and the second container 104 maintain a relatively high humidity, that is, high humidity preservation is achieved.

[0072] Referring to Figure 2 and Figure 5 As shown, it can be understood that the air duct assembly has a second state. The air duct assembly has a third air outlet 208, and the third air outlet 208 is located at the rear side of the second container 104 and corresponds to the position of the second open end 106. A part of the airflow blows out from the third air outlet 208 and blows into the interior of the second container 104 from the second open end 106, then flows downward along the front side of the second container 104, and finally flows back to the return air outlet 401 from the bottom of the second container 104. In addition, a part of the airflow blows out from the first air outlet 206 and flows above the cover plate 201, then flows downward along the front side of the first container 103, and finally flows back to the return air outlet 401 from the bottom of the second container 104. That is, when the air duct assembly is in the second state, the airflow blows towards the second ventilation opening 207 and the cover plate 201. Since the cold air slowly enters the first container 103 and directly blows into the second container 104, the first container 103 and the second container 104 can be quickly cooled and stored, and simultaneous air supply is achieved for the upper and lower layers. In addition, less moisture is lost inside the first container 103, and more moisture is lost inside the second container 104, presenting a distribution pattern of high humidity in the upper layer and low humidity in the lower layer, realizing dry and wet separate storage.

[0073] Therefore, by using the air duct assembly to control the air flow direction, opening or closing the third air vent 208, the humidity and temperature inside the second container 104 can be adjusted, and the temperature inside the first container 103 can also be adjusted to meet the storage condition requirements of different types of food ingredients.

[0074] Referring to Figure 1 and Figure 2 as shown, it can be understood that a moisture-proof film 108 is provided at the front part of the first container 103. The moisture-proof film 108 is used to adjust the humidity of the second container 104. The moisture-proof film 108 has the functions of moisture retention and moisture permeability. When the humidity in the second container 104 is too high, for example, the humidity is greater than 95%, the moisture-proof film 108 transmits moisture to the outside of the first container 103 to reduce the humidity inside the second container 104. When the humidity in the second container 104 is low, for example, the humidity is less than 90%, the moisture-proof film 108 plays a moisture retention role to meet the humidity requirements of 90%-95% for vegetable food ingredients.

[0075] Referring to Figure 2 as shown, it can be understood that a front plate 209 and a bent plate 210 are provided at the front part of the first container 103. The bent plate 210 is bent downward from the upper end of the front plate 209. There is a humidity adjustment space 211 between the front plate 209 and the bent plate 210. The lower part of the humidity adjustment space 211 is open, so as to communicate with the second opening 106. The front plate 209 is used to isolate the internal space of the first container 103 and the humidity adjustment space 211. The moisture-proof film 108 is installed on the bent plate 210, which is convenient for users to install and replace.

[0076] Referring to Figure 6 as shown, it can be understood that in some embodiments, a channel for guiding the air flow direction is formed in the air duct foam 205. The channel has a first air duct 601 and a second air duct 602. The first air duct 601 and the second air duct 602 are independent of each other. The air supply air damper 202 is a double air damper. The air supply air damper 202 is used to open at least one of the first air duct 601 and the second air duct 602 to enable the above-mentioned air duct assembly to be in the first state or the second state. The air supply air damper 202 is located between the freezer 204 and the variable temperature chamber 102, and its function is to allow the freezer 204 to deliver cold air to the variable temperature chamber 102 through the freezing air duct 603 for temperature control.

[0077] Among them, referring to Figure 2 and Figure 6As shown in the figure, the first container 103 is provided with a first ventilation opening 212. The first ventilation opening 212 communicates the inside and the outside of the first container 103, enabling the cold air generated by the refrigeration system in the refrigerator to enter the inside of the first container 103, thus achieving rapid cooling. The air outlet end of the first air duct 601 is provided with a first air outlet 206, and the first air outlet 206 faces the upper part of the cover plate 201. The air outlet end of the second air duct 602 is provided with a second air outlet 213 and a third air outlet 208. The second air outlet 213 faces the first ventilation opening 212, and the third air outlet 208 faces the second ventilation opening 207.

[0078] When the air duct assembly is in the first state, the air supply damper 202 opens the first air duct 601. The cold air conveyed by the freezing air duct 603 is conveyed to the upper part of the cover plate 201 via the first air outlet 206. The cold air surrounds the first container 103 and the second container 104 and returns to the freezing chamber 204 via the air return opening 401. Since the cold air does not directly enter the first container 103 and the second container 104, it is not easy for the cold air to take away the moisture inside the first container 103 and the second container 104, ensuring high humidity retention for the upper sliding tray and the lower drawer.

[0079] When the air duct assembly is in the second state, the air supply damper 202 opens the second air duct 602. The cold air conveyed by the freezing air duct 603 is conveyed into the inside of the first container 103 via the second air outlet 213 and conveyed into the inside of the second container 104 via the third air outlet 208. Since the cold air directly blows into the inside of the first container 103 and the second container 104, it can enable the first container 103 and the second container 104 to cool down rapidly, meeting the performance requirements such as temperature storage and freezing capacity.

[0080] It should be noted that in some other embodiments, when the air duct assembly is in the second state, the air supply damper 202 opens the second air duct 602 and can close the first air duct 601. At this time, the air flow can only flow into the inside of the first container 103 and the second container 104 and does not flow to the upper part of the cover plate 201.

[0081] With the rise of fresh food e-commerce in recent years, people's demand for storing meat and fresh food ingredients has gradually shifted from long-term storage to short-term storage. In recent years, the wide-range variable temperature function has been well-liked by users because of its large storage space and flexible switching between refrigeration and freezing. Users can flexibly adjust the appropriate storage function according to actual storage needs. For example, when storing fruits and vegetables, the variable temperature drawer can be adjusted to the refrigeration gear (0°C to 5°C), and when storing meat, it can be adjusted to the soft freezing / freezing gear (below -1°C, such as -18°C, -24°C, -30°C, -40°C, -60°C).

[0082] Refer to Figure 7As shown, it can be understood that when the user sets the variable temperature chamber 102 to the refrigeration mode, that is, when the temperature of the variable temperature chamber 102 is between 0°C and 5°C, the air supply damper 202 opens the first air duct 601 and closes the second air duct 602. The first air outlet 206 can supply air, while the second air outlet 213 and the third air outlet 208 cannot supply air. The cold air does not directly enter the first container 103 and the second container 104, avoiding taking away the moisture of the food materials and realizing the full-space high-humidity function.

[0083] Referring to Figure 4 and Figure 7 As shown, it can be understood that the cold air flows upward from the bottom of the second container 104, surrounds the first container 103 and the second container 104 for one week, and then returns to the freezer 204 through the air return port 401. Thus, the temperature of the internal food materials can be reduced through heat exchange on the outer wall, improving the low-temperature fresh-keeping environment.

[0084] Referring to Figure 8 As shown, it can be understood that when the user sets the variable temperature chamber 102 to the freezing mode, that is, when the temperature of the variable temperature chamber 102 is below -1°C, the air supply damper 202 opens the first air duct 601 and the second air duct 602. The first air outlet 206, the second air outlet 213 and the third air outlet 208 can all supply air. The cold air directly enters the first container 103 and the second container 104, and is also conveyed to the upper part of the cover plate 201. Therefore, it can ensure the rapid cooling of the first container 103 and the second container 104, accelerate the cooling speed of the food materials, help the temperature of the food materials drop to the set temperature, and improve the fresh-keeping effect. It can be understood that because the set temperature of the freezing mode is relatively low, if the cooling speed of the food materials is very slow, it is possible that the temperature of the food materials cannot drop to the set temperature in a short time, ultimately resulting in a poor fresh-keeping effect.

[0085] It should be noted that in some other embodiments, when the user sets the variable temperature chamber 102 to the refrigeration mode, the air supply damper 202 opens the first air duct 601 and the second air duct 602, and the first air outlet 206, the second air outlet 213 and the third air outlet 208 can all supply air.

[0086] It can be understood that according to the above embodiments, other embodiments can be extended, that is, the variable temperature chamber 102 can operate in the first gear and the second gear, and the temperature of the variable temperature chamber 102 in the first gear is higher than the temperature of the variable temperature chamber 102 in the second gear. When the variable temperature chamber 102 is set to the first gear and the current temperature of the variable temperature chamber 102 is greater than the set temperature of the first gear, the air duct assembly is opened at this time to realize ventilation, and the air duct assembly is in the first state to realize full-space high humidity. When the variable temperature chamber 102 is set to the second gear and the current temperature of the variable temperature chamber 102 is greater than the set temperature of the second gear, the air duct assembly is opened at this time to realize ventilation, and the air duct assembly is in the second state, and the first container 103 realizes constant temperature and high humidity.

[0087] It should be noted that when the variable temperature chamber 102 is in the first gear or the second gear, that is, when the temperature of the current variable temperature chamber 102 reaches the set temperature, the air duct assembly is not ventilated at this time, and it is okay for the air duct assembly to be in the first state or the second state.

[0088] In summary, the functions of the breathable micropores 301 are as follows: ① When switched to the refrigeration gear, some water vapor can escape to the outside of the cover plate 201 through the breathable micropores 301, preventing the berries from mildewing due to the excessive humidity of the first container 103 and meeting the humidity requirements of 85%-95% for fruit ingredients; ② When switched to freezing, the cold air flowing through the upper part of the cover plate 201 penetrates into the first container 103 through the breathable micropores 301, which can improve the freezing and cooling speed; ③ When defrosting the freezer, it can prevent the hot air generated by the heating wire from directly entering the first container 103 and impacting the temperature of the ingredients, causing a large fluctuation in the temperature of the ingredients.

[0089] Refer to Figure 7 As shown, it can be understood that the first air duct 601 and the second air duct 602 are arranged in the left-right direction, and the air inlets of the first air duct 601 and the second air duct 602 correspond to the bottom of the second container 104, so that the cold air flows upward from the bottom of the second container 104 to the upper part of the first container 103 and the upper part of the second container 104. The heat exchange area between the first air duct 601 and the second air duct 602 and the first container 103 and the second container 104 is increased, which is beneficial to improving the heat exchange efficiency.

[0090] It can be understood that in some other embodiments, the first air duct 601 and the second air duct 602 can also be arranged in the up-down direction.

[0091] Refer to Figure 7 As shown, it can be understood that the first air duct 601 includes a first air outlet branch duct 701 and a second air outlet branch duct 702, and the first air outlet branch duct 701 and the second air outlet branch duct 702 are arranged in the left-right direction. Such an arrangement mainly has a guiding effect. Generally, the air return port 401 is on the left side in the figure. Since the first air duct 601 is on the right side in the figure, part of the air is guided to the right side to ensure that the temperature on the right side can be pulled down better. If the first air outlet branch duct 701 and the second air outlet branch duct 702 are combined together, the temperature on the right side may be too high because most of the air directly flows back to the air return port 401 on the left side. That is to say, by dividing the first air duct 601 into the first air outlet branch duct 701 and the second air outlet branch duct 702, and arranging the first air outlet branch duct 701 and the second air outlet branch duct 702 in the left-right direction, the uniformity of the temperature distribution can be improved.

[0092] Refer to Figure 9 As shown, it can be understood that in some embodiments, with Figures 6 to 8The main difference of the illustrated embodiment is that the second air duct 602 only has the third air outlet 208 facing the second air vent 207, but does not have the second air outlet 213 facing the first air vent 212.

[0093] When the air duct assembly is in the first state, the air supply damper 202 opens the first air duct 601, and the cold air conveyed by the refrigeration air duct 603 is conveyed to the upper part of the cover plate 201 through the first air outlet 206. The cold air surrounds the first container 103 and the second container 104 and returns to the freezer 204 through the air return port 401. Since the cold air does not directly enter the first container 103 and the second container 104, it is not easy for the cold air to carry away the moisture inside the first container 103 and the second container 104, ensuring high humidity retention for the upper sliding tray and the lower drawer.

[0094] When the air duct assembly is in the second state, the air supply damper 202 opens the second air duct 602, and the cold air conveyed by the refrigeration air duct 603 is conveyed to the inside of the second container 104 through the third air outlet 208. Since the cold air directly blows into the inside of the second container 104, the second container 104 can be quickly cooled. At the same time, the cold air entering the inside of the second container 104 will also exchange heat with the bottom of the first container 103, accelerating the cooling rate of the first container 103, meeting performance requirements such as temperature storage and freezing capacity. And no cold air directly enters the inside of the first container 103, which is beneficial to maintaining the high humidity state of the first container 103, realizing dry-wet separate storage of the first container 103 and the second container 104.

[0095] In addition, referring to Figure 9 as shown, it can be understood that the first air duct 601 includes a first air outlet branch 701 and a second air outlet branch 702. The first air outlet branch 701 and the second air outlet branch 702 are arranged in the left-right direction, and the air outlet end of the second air outlet branch 702 is located above the air outlet end of the second air duct 602. Since the first air duct 601 and the second air duct 602 are arranged in the left-right direction, the second air duct 602 occupies a part of the space, affecting the cold air covering a larger range of the cover plate 201, which is not conducive to temperature uniformity. And Figure 9 in the illustrated embodiment, by setting the air outlet end of the second air outlet branch 702 above the air outlet end of the second air duct 602, the air outlet range is expanded, covering a larger area of the cover plate 201, thereby improving temperature uniformity.

[0096] It should be noted that Figure 9 in the illustrated embodiment, the air outlet of the second air duct 602 does not blow towards the cover plate 201. In some other embodiments, the air outlet of the second air duct 602 can also blow towards the cover plate 201, that is, after the cold air enters the second air duct 602, a part of the air flow will blow towards the cover plate 201.

[0097] Referring to Figures 10 to 13As shown, it can be understood that in some embodiments, the air duct assembly includes an air duct cover 203. At the bottom of the air duct cover 203, there is an air supply damper 202, which is a single damper. The air supply damper 202 connects the freezer compartment 204 and the variable temperature compartment 102, and its function is to allow the freezer compartment 204 to supply cold air to the variable temperature compartment 102 for temperature control. Inside the variable temperature air duct cover 203, there is an air duct foam 205, and a channel for guiding the air flow direction is formed inside the air duct foam 205. The channel includes an air supply duct 1001, and the air supply duct 1001 has a first air outlet 206 and a third air outlet 208. The first air outlet 206 faces the cover plate 201, and the third air outlet 208 faces the second ventilation opening 207. The air duct assembly is provided with an air control device, and the air control device is used to open or close the third air outlet 208, and can adjust the humidity and temperature inside the second container 104 to meet the storage condition requirements of different types of food ingredients.

[0098] When the air duct assembly is in the first state, the air supply damper 202 opens the air supply duct 1001, and the air control device shields the third air outlet 208. The cold air conveyed by the freezer air duct 603 is conveyed to the upper part of the cover plate 201 via the first air outlet 206, and the cold air surrounds the first container 103 and the second container 104 and returns to the freezer compartment 204 via the return air outlet 401. Since the cold air does not directly enter the first container 103 and the second container 104, it is not easy for the cold air to take away the internal moisture of the first container 103 and the second container 104, ensuring high humidity for the upper sliding tray and the lower drawer.

[0099] When the air duct assembly is in the second state, the air supply damper 202 opens the air supply duct 1001, and the air control device opens the third air outlet 208. The cold air conveyed by the freezer air duct 603 is conveyed to the upper part of the cover plate 201 via the first air outlet 206 and then conveyed to the inside of the second container 104 via the third air outlet 208. Since the cold air directly blows into the inside of the second container 104, it can cause the first container 103 and the second container 104 to cool down quickly, realizing dry and wet separation storage and meeting the performance requirements such as storage temperature and freezing capacity.

[0100] When the user sets the variable temperature compartment 102 to the refrigeration gear, if the air duct assembly is in the first state, the full-space high-humidity function can be realized. If the air duct assembly is in the second state, dry and wet separation storage can be realized, and the cooling rate can be accelerated.

[0101] When the user sets the variable temperature compartment 102 to the freezing gear, the air duct assembly is in the second state, and it can quickly cool down to the set temperature to meet the performance requirements such as storage temperature and freezing capacity.

[0102] Refer to Figures 11 to 13As shown, it can be understood that the air control device includes a wind deflector 1101 and a first driving member 1301. The first driving member 1301 drives the wind deflector 1101 to move to open or close the third air outlet 208. The first driving member 1301 can be a motor. A gear 1201 is provided at the output end of the motor, and a rack portion 1202 meshing with the gear 1201 is provided on the wind deflector 1101. The motor drives the gear 1201 to rotate, thereby driving the rack portion 1202 to move, and further driving the wind deflector 1101 to move.

[0103] Referring to Figure 13 As shown, it can be understood that the air duct cover 203 is provided with a chute 1302, and the wind deflector 1101 is installed in the chute 1302 to slide in the up and down direction along the chute 1302, so that the movement direction of the wind deflector 1101 is more accurate and the movement process is smoother.

[0104] Referring to Figure 13 As shown, it can be understood that the wind deflector 1101 is provided with grille holes 1303. When the grille holes 1303 correspond to the position of the third air outlet 208, the third air outlet 208 is opened, so that cold air can enter the interior of the second container 104 through the second ventilation opening 207. When the grille holes 1303 are completely misaligned with the position of the third air outlet 208, the third air outlet 208 is shielded by the wind deflector 1101, and the cold air does not directly enter the second container 104.

[0105] It should be noted that in some other embodiments, the third air outlet 208 can also be closed by shielding the third air outlet 208 with the wind deflector 1101, and the third air outlet 208 can be opened by the wind deflector 1101 leaving the third air outlet 208.

[0106] It can be understood that in some other embodiments, the first driving member 1301 can also drive the wind deflector 1101 to move by transmission mechanisms such as a pulley mechanism and a belt drive mechanism. In addition, in some other embodiments, the first driving member 1301 can also be to drive the wind deflector 1101 to rotate to open or close the third air outlet 208.

[0107] It can be understood that the refrigerator according to the embodiment of the present invention further includes an adjustment component. The adjustment component is connected to the cover plate 201, and the adjustment component drives the cover plate 201 to move so as to adjust the gap size between the cover plate 201 and the first container 103. The cold air blown out by the air duct assembly can enter the interior of the first container 103 through the gap between the cover plate 201 and the first container 103. When the gap size between the adjustment cover plate 201 and the first container 103 is increased, more cold air blown out by the air duct assembly can enter the interior of the first container 103, thereby accelerating the cooling rate. When the gap size between the adjustment cover plate 201 and the first container 103 is decreased, the flow rate of the cold air blown out by the air duct assembly entering the interior of the first container 103 is reduced, and the water loss in the first container 103 is reduced, which helps to maintain the high-humidity state in the first container 103.

[0108] Refer to Figures 14 to 16 、 Figure 18 As shown in the figure, the adjustment component includes a second driving member 1501. The cover plate 201 is provided with a connecting portion 1502. The connecting portion 1502 is located at one end of the cover plate 201 close to the air duct assembly. The second driving member 1501 can provide a driving force, and the driving force acts on the connecting portion 1502 and then drives the entire cover plate 201 to move, so that the cover plate 201 opens or closes the first opening 105 of the first container 103.

[0109] Refer to Figure 15 As shown in the figure, it can be understood that the second driving member 1501 can be a linear driving motor. The linear driving motor pushes the connecting portion 1502 upward so that one end of the cover plate 201 close to the air duct cover 203 turns upward to open the first opening 105 of the first container 103, so that the cold air blown out by the air duct assembly directly enters the interior of the first container 103 from the opened first opening 105 at this end, that is, the cold air blows into the first container 103 from the rear gap, realizing rapid cooling and meeting the demand for rapid freezing.

[0110] Refer to Figure 16 As shown in the figure, it can be understood that when the linear driving motor contracts downward, one end of the cover plate 201 close to the air duct cover 203 loses the supporting force and also turns downward to fall back, thereby closing the first opening 105 of the first container 103, so that the cold air blown out by the air duct assembly blows out from the upper part of the cover plate 201, and part of the cold air enters the first container 103 through the plurality of breathable micropores 301, and a certain cooling rate can be maintained.

[0111] Refer to Figure 15 、 Figure 16 and Figure 18As shown, it can be understood that the adjustment component includes a top block 1503, the area of ​​which is smaller than the cover plate 201, but larger than the output end of the linear drive motor, the output end of the linear drive motor is connected to the top block 1503, and the top block 1503 supports the connection part 1502, so that the force is more uniform, and the gravity of the cover plate 201 has less influence on the linear drive motor during movement. In addition, the connection part 1502 is provided with a positioning groove 1504, and the top block 1503 is located in the positioning groove 1504, so that it will not be displaced during installation, thereby achieving a positioning effect.

[0112] It should be noted that the cover plate 201 can also be driven by a power component such as a cam mechanism, a connecting rod mechanism, etc. to open or close the first opening 105.

[0113] It should be noted that the cover plate 201 can also open or close the first opening 105 by moving along a horizontal plane, rolling up, or shrinking.

[0114] Reference Figure 17 and Figure 18 As shown, it can be understood that the cover 201 is provided with a rotating shaft 1701, and the rotating shaft 1701 is located at the end of the cover 201 away from the air duct assembly, and the box body 101 is provided with a limiting portion 1702. When the linear drive motor drives the end of the cover 201 close to the air duct cover shell 203 to move upward or downward, the limiting portion 1702 blocks the movement of the rotating shaft 1701 away from the air duct cover shell 203, thereby making it suitable for the cover 201 to rotate around the rotating shaft 1701 as a whole.

[0115] Reference Figure 17 As shown, the limiting portion 1702 can be configured as a limiting groove, which can limit the front-rear direction of the rotating shaft 1701, so that the rotating shaft 1701 will not shift during rotation. Of course, the limiting portion 1702 can be configured as a limiting block, which is arranged on the side of the rotating shaft 1701 away from the air duct cover 203, and the rotating shaft 1701 abuts against the limiting block, which can prevent the rotating shaft 1701 from moving away from the air duct cover 203.

[0116] Reference Figure 19 and Figure 20 As shown, it can be understood that when the air duct component adopts Figures 10 to 13 In the scheme of the present invention, the adjustment component can omit the second driving member 1501. Specifically, the adjustment component includes a top block 1503, which is arranged on the windshield 1101. The windshield 1101 is provided with a support portion 1901 on a side close to the cover plate 201. The top block 1503 is installed on the support portion 1901. When the first driving member 1301 drives the windshield 1101 to move in the up-down direction, the top block 1503 is simultaneously driven to move in the up-down direction, so as to adjust the gap between the cover plate 201 and the first container 103.

[0117] It can be understood that when the air duct assembly adopts Figures 10 to 13 the solution, the adjustment assembly can also adopt Figures 14 to 18 the solution shown.

[0118] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. Refrigerator, characterized in that, comprising: a cabinet body provided with a refrigerating compartment; a first container located in the refrigerating compartment, the first container having a first opening; a cover plate provided at the first opening, the cover plate being provided with a plurality of air-permeable micropores configured to allow air to flow between the inside and outside of the first container; an air duct assembly for introducing cold air into the refrigerating compartment; an adjusting assembly for adjusting the gap size between the cover plate and the first container.

2. The refrigerator according to claim 1, characterized in that, the refrigerator further comprises a second container having a second opening, the first container being located at the second opening, and the second container being provided with a second ventilation opening communicating with the outside; the air duct assembly controls the air flow direction and has a first state and a second state. When the air duct assembly is in the first state, the air flow bypasses the second ventilation opening and blows towards the cover plate; when the air duct assembly is in the second state, the air flow blows towards the second ventilation opening and the cover plate.

3. The refrigerator according to claim 2, characterized in that, the air duct assembly is provided with a supply air damper and independent first and second air ducts. A first air outlet of the first air duct faces the cover plate. The first container is provided with a first ventilation opening communicating with the outside. A second air outlet of the second air duct faces the first ventilation opening, and a third air outlet of the second air duct faces the second ventilation opening. The supply air damper is used to open the first air duct and / or the second air duct.

4. The refrigerator according to claim 2, characterized in that, the air duct assembly is provided with a supply air damper and independent first and second air ducts. A first air outlet of the first air duct faces the cover plate, and a third air outlet of the second air duct faces the second ventilation opening. The supply air damper is used to open the first air duct and / or the second air duct.

5. The refrigerator according to claim 2, characterized in that, the air duct assembly is provided with a wind control device and a supply air duct. The supply air duct has a first air outlet and a third air outlet. The first air outlet faces the cover plate, and the third air outlet faces the second ventilation opening. The wind control device is used to open or close the third air outlet.

6. The refrigerator according to claim 5, characterized in that, the wind control device includes a wind blocking plate and a first driving member. The first driving member drives the wind blocking plate to move to open or close the third air outlet.

7. The refrigerator according to claim 6, characterized in that, the adjusting assembly includes a top block disposed on the wind blocking plate, and the first driving member drives the wind blocking plate to move in the up and down direction.

8. The refrigerator according to claim 1, characterized in that, the adjusting assembly includes a second driving member. One end of the cover plate close to the air duct assembly is provided with a connecting portion. The second driving member pushes the connecting portion to cause the cover plate to turn up or down.

9. The refrigerator according to claim 8, characterized in that, the adjusting assembly includes a top block. The second driving member connects to the connecting portion through the top block. The connecting portion is provided with a positioning groove, and the top block is located in the positioning groove.

10. The refrigerator according to claim 8, wherein, a rotating shaft is provided at one end of the cover plate facing away from the air duct assembly, and a limiting portion adapted to accommodate the rotation of the rotating shaft is provided on the box body.

11. The refrigerator according to claim 2, wherein, a variable temperature chamber is provided in the box body, the first container, the cover plate and the second container are located in the variable temperature chamber, the variable temperature chamber can operate in a first gear and a second gear, and the temperature of the variable temperature chamber in the first gear is higher than the temperature of the variable temperature chamber in the second gear.

12. The refrigerator according to claim 11, wherein, when the variable temperature chamber is in the first gear, the temperature of the variable temperature chamber is 0°C to 5°C; when the variable temperature chamber is in the second gear, the temperature of the variable temperature chamber is below -1°C.

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