Refrigerator

Abstract

The invention discloses a refrigerator, and relates to the technical field of refrigeration equipment, a first container is provided with a first opening, a cover plate is arranged at the first opening, and the cover plate is provided with a plurality of ventilation micropores; the second container is provided with a second opening, and the first container is located at the second opening; the humidifying assembly is used for adjusting the humidity of at least one of the first container and the second container and comprises a liquid storage box, a water pump and a humidifying module, and the water pump is used for conveying liquid in the liquid storage box to the humidifying module; wherein the humidifying module, the first container, the cover plate and the second container are located in the temperature changing chamber, the liquid storage box is located in the refrigerating chamber, and when the temperature of the temperature changing chamber is below-1 DEG C, the water pump can reversely pump liquid in the humidifying module into the liquid storage box. When the temperature changing drawer is set to be at the freezing gear, the water pump pumps water in the humidifying module back into the liquid storage box located in the refrigerating chamber through reverse pumping, and the phenomenon of freezing in the humidifying module is relieved.

Description

Technical Field

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

[0002] With the rise of fresh food e-commerce in recent years, people's demand for long-term storage of meat and fresh food ingredients has gradually shifted to short-term storage. In recent years, the wide-range variable temperature function has been favored 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). As is well known, in addition to temperature, humidity is also one of the important factors affecting the storage of fruits and vegetables. Maintaining a high-humidity environment helps to extend the freshness period of fruits and vegetables. Generally, a humidification module can be set to adjust the humidity in the drawer. However, when the variable temperature drawer switches from the freezing gear to the refrigeration gear, the humidification component is likely to malfunction due to icing. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a refrigerator that can adjust the temperature change rate and humidity, and can reduce the impact of icing on the humidification component.

[0004] The refrigerator according to an embodiment of the present invention includes a box body, a first container, a cover plate, a second container, and a humidification component. The box body is provided with a refrigerating chamber and a variable temperature chamber; the first container has a first opening; the cover plate is disposed at the first opening, and the cover plate is provided with a plurality of breathable micropores configured to allow air to flow inside and outside the first container; the second container has a second opening, and the first container is located at the second opening; the humidification component is used to adjust the humidity of at least one of the first container and the second container, and the humidification component includes a liquid storage box, a water pump, and a humidification module. The water pump is used to transport the liquid in the liquid storage box to the humidification module; wherein, the humidification module, the first container, the cover plate, and the second container are located in the variable temperature chamber, the liquid storage box is located in the refrigerating chamber, the variable temperature chamber can operate in a second gear, and when the variable temperature chamber is in the second gear, the temperature of the variable temperature chamber is below -1°C, and the water pump can reverse-pump the liquid in the humidification module to the liquid storage box.

[0005] The refrigerator according to the embodiment of the present invention has at least the following beneficial effects: The first container creates a relatively airtight space through the cover plate provided with breathable micropores for moisture preservation, and the second container forms a relatively airtight space in cooperation with the first container for moisture preservation. The cold air flowing through the upper part of the cover plate seeps into the interior of the first container through the breathable micropores, and the humidity can be adjusted by using the humidification component, so that the humidity of at least one of the first container and the second container can be adjusted to meet the storage condition requirements of different types of food materials. Moreover, when the variable-temperature drawer is set to the freezing gear, the water pump pumps the water in the humidification module back to the liquid storage box located in the refrigerating chamber by reverse pumping, reducing the phenomenon of icing in the humidification module.

[0006] According to some embodiments of the present invention, the humidification module is located at the rear side of the first container and the second container.

[0007] According to some embodiments of the present invention, the humidification module includes a first module and a second module. The first module is used for humidifying the first container, and the second module is used for humidifying the second container.

[0008] According to some embodiments of the present invention, the first module and the second module are arranged in parallel.

[0009] According to some embodiments of the present invention, the liquid storage box is provided with a liquid storage cavity and an object placement cavity. The liquid storage cavity is used for storing liquid, and the water pump is arranged in the object placement cavity.

[0010] According to some embodiments of the present invention, the refrigerator includes an air duct assembly. The second container is provided with a second ventilation opening communicating with the outside. The air duct assembly is used for controlling 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.

[0011] According to some embodiments of the present invention, the variable-temperature chamber can operate in a first gear. When the variable-temperature chamber is in the first gear, the temperature of the variable-temperature chamber is 0°C to 5°C.

[0012] According to some embodiments of the present invention, when ventilation is required to make the variable-temperature chamber in the first gear, the air duct assembly is in the first state or the second state.

[0013] According to some embodiments of the present invention, when ventilation is required to make the variable-temperature chamber in the second gear, the air duct assembly is in the second state.

[0014] According to some embodiments of the present invention, the humidification module is provided with a moisture-permeable membrane, and the moisture-permeable membrane is located on the side of the humidification module facing the first container and the second container.

[0015] According to some embodiments of the present invention, the pore diameter of the breathable micropores is 3.7 mm to 3.9 mm.

[0016] According to some embodiments of the present invention, the gap range between the cover plate and the first container is 1 mm to 5 mm; the gap range between the second container and the first container is 1 mm to 5 mm.

[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 of the refrigerator shown in the B-B direction;

[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 of the refrigerator shown in the B-B direction;

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

[0030] Figure 12 is Figure 11 Enlarged view at C shown;

[0031] Figure 13 is Figure 11 Exploded view of the air duct assembly shown;

[0032] Figure 14 Internal schematic diagram of the variable temperature compartment of the refrigerator according to an embodiment of the present invention;

[0033] Figure 15 Schematic diagram of the refrigerator after removing the door body of the refrigerating compartment according to an embodiment of the present invention.

[0034] Reference numerals:

[0035] 101, box body; 102, variable temperature compartment; 103, first container; 104, second container; 105, first opening; 106, second opening; 107, drawer board;

[0036] 201, cover plate; 202, air supply damper; 203, air duct cover shell; 204, freezer compartment; 205, air duct foam; 206, first air outlet; 207, second ventilation opening; 208, third air outlet; 209, first ventilation opening; 210, second air outlet; 211, refrigerating compartment;

[0037] 301, breathable micropores;

[0038] 401, return air opening;

[0039] 601, first air duct; 602, second air duct; 603, freezer air duct;

[0040] 701, first air outlet branch duct; 702, second air outlet branch duct;

[0041] 1001, air supply air duct;

[0042] 1101, wind baffle;

[0043] 1201, gear; 1202, rack part;

[0044] 1301, driving member; 1302, sliding groove; 1303, grille hole;

[0045] 1401, water delivery pipe; 1402, liquid storage box; 1403, water pump; 1404, first module; 1405, second module; 1406, through hole; 1407, moisture permeable membrane; 1408, first branch pipe; 1409, second branch pipe; 1410, liquid storage cavity; 1411, storage cavity; 1412, water extraction pipe. Detailed implementation manners

[0046] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying 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 with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0047] In the description of the present invention, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It 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.

[0048] 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 recited number, and above, below, within, etc. are understood as including the recited number. 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 implicitly indicating the sequence relationship of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, words such as set, install, connect, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention in combination with the specific content of the technical solution.

[0050] Refer to Figure 1 As shown, the refrigerator according to the embodiment of the present invention includes a cabinet 101, and a variable temperature chamber 102 is provided inside the cabinet 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 chamber 102, and the first container 103 is located above the second container 104.

[0051] Refer to Figure 1As 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 above the lower drawer. After the lower drawer is pulled out, the user can pull out or push in the upper sliding tray to achieve front-back 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 naked food ingredients (such as food ingredients without plastic fresh-keeping bags 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.

[0052] 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.

[0053] Referring to Figure 1 and Figure 2 As 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, so that 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.

[0054] 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 range between the cover plate 201 and the first container 103 is 1 mm to 5 mm. The existence of the gap can facilitate the sliding of the first container 103 to smoothly perform the pulling-out or pushing-in action of the first container 103. Referring to Figure 3As 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 flow between the inside and outside of the first container 103.

[0055] It can be understood that in some embodiments, the proportion of the opening area of all the breathable micropores 301 in the area range of the cover plate 201 is 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 the cold air entering the inside of 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%.

[0056] Referring to Figure 3 As shown, it can be understood that in some embodiments, the aperture of the breathable micropore 301 is D, and the size range of D is 3.7 mm to 3.9 mm. When D is less than 3.7 mm, it is difficult to achieve air circulation between the inside and outside of 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.

[0057] 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.

[0058] Referring to Figure 3 As shown, it can be understood that in some embodiments, the row spacing between two adjacent rows is L2. The value of L2 can be selected as 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, etc. Hereinafter, the value of L2 is taken as 5 mm for illustration.

[0059] Referring to Figure 3 As shown, it can be understood that in some embodiments, two adjacent 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 10 mm * 10 mm, 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 airflow distribution more uniform.

[0060] Referring to Figure 2As 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 interior and exterior of the second container 104, enabling the cold air generated by the refrigeration system in the refrigerator to enter the interior of the second container 104, achieving rapid cooling, and can also store some items with lower humidity requirements.

[0061] 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 allow the freezer compartment 204 to supply cold air to the variable temperature compartment 102 for temperature control. An air duct foam 205 is provided inside the variable temperature air duct cover 203, and a channel for guiding the air flow direction is formed inside the air 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.

[0062] Referring to Figure 2 and Figure 4 As shown, it can be understood that the air duct assembly has a first state. The air duct assembly has a first air outlet 206. The first air outlet 206 is located at the rear side of the first container 103. The air flow blows out from the first air outlet 206 and flows along the upper side of the cover plate 201, then flows downward along the front side of the first container 103, and finally flows back to the return air opening 401 from the bottom of the second container 104. During the whole process, no air flow directly blows into the interior of the second container 104. That is, when the air duct assembly is in the first state, the air flow blows towards the cover plate 201 and bypasses 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 breathable micropores 301, which can improve the cooling speed. However, only part of the water vapor can escape to the outside of the cover plate 201 through the breathable micropores 301, which helps to maintain the humidity inside the first container 103. At the same time, part of the water vapor escapes to the outside of the cover plate 201 through the breathable micropores 301, which can prevent the berries in the first container 103 from getting moldy 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 carry 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 airtight space, and the first container 103 and the second container 104 cooperate to form a relatively airtight space, ensuring that the interiors of the first container 103 and the second container 104 maintain a relatively high humidity, that is, high humidity retention is achieved.

[0063] Referring to Figure 2 and Figure 5As shown, it can be understood that the air duct assembly has a second state. The air duct assembly has a third air outlet 208. The third air outlet 208 is located at the rear side of the second container 104 and corresponds to the position of the second opening 106. A part of the air flow blows out from the third air outlet 208 and blows into the interior of the second container 104 from the second opening 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 air flow 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 air flow 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 down and stored at a low temperature, and simultaneous air supply to the upper and lower layers can be achieved. 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 separate storage of dry and wet items.

[0064] Therefore, by using the air duct assembly to control the air flow direction, opening or closing the third air outlet 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.

[0065] Referring to Figure 6 As shown, it can be understood that in some embodiments, a channel for guiding the air flow direction is formed inside 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 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 through the freezer air duct 603 for temperature control.

[0066] Among them, referring to Figure 2 and Figure 6 As shown, the first container 103 is provided with a first ventilation opening 209. The first ventilation opening 209 communicates the interior and the exterior of the first container 103, and can enable the cold air generated by the refrigeration system in the refrigerator to enter the interior of the first container 103 to achieve 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 ends of the second air duct 602 are provided with a second air outlet 210 and a third air outlet 208. The second air outlet 210 faces the first ventilation opening 209, and the third air outlet 208 faces the second ventilation opening 207.

[0067] 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 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 take away the moisture inside the first container 103 and the second container 104, ensuring high humidity for the upper sliding tray and the lower drawer.

[0068] 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 refrigeration air duct 603 is conveyed to the inside of the first container 103 through the second air outlet 210 and 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 first container 103 and the second container 104, the first container 103 and the second container 104 can be quickly cooled down to meet the performance requirements such as temperature storage and freezing capacity.

[0069] 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.

[0070] With the rise of fresh food e-commerce in recent years, people's demand for 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 favored 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).

[0071] Referring to Figure 7 As shown, it can be understood that by adopting the solution of the embodiment of the present invention, when the user sets the variable temperature chamber 102 to the refrigeration gear, 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 210 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 ingredients and realizing the high humidity function of the whole space.

[0072] Referring to Figure 4 and Figure 7As shown, it can be understood that the cold air flows upward from the bottom of the second container 104, circulates around the first container 103 and the second container 104, and then returns to the freezer compartment 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 preservation environment.

[0073] Referring to Figure 8 As shown, it can be understood that when the user sets the variable temperature compartment 102 to the freezing mode, that is, when the temperature of the variable temperature compartment 102 is below -1°C, 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 210, 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 delivered above the cover plate 201. Therefore, it can ensure that the first container 103 and the second container 104 are quickly cooled, accelerating the cooling speed of the food materials, helping the temperature of the food materials to drop to the set temperature, and improving the preservation 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 within a short time, ultimately resulting in a poor preservation effect.

[0074] It should be noted that in some other embodiments, when the user sets the variable temperature compartment 102 to the refrigerating 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 210, and the third air outlet 208 can all supply air.

[0075] It can be understood that according to the above embodiments, other embodiments can be extended, that is, the variable temperature compartment 102 can operate in a first gear and a second gear, and the temperature of the variable temperature compartment 102 in the first gear is higher than the temperature of the variable temperature compartment 102 in the second gear. When the variable temperature compartment 102 is set to the first gear and the current temperature of the variable temperature compartment 102 is greater than the set temperature of the first gear, at this time the air duct assembly is turned on to achieve ventilation, and the air duct assembly is in the first state to achieve high humidity in the whole space. When the variable temperature compartment 102 is set to the second gear and the current temperature of the variable temperature compartment 102 is greater than the set temperature of the second gear, at this time the air duct assembly is turned on to achieve ventilation, and the air duct assembly is in the second state, and the first container 103 achieves constant temperature and high humidity.

[0076] It should be noted that when the variable temperature compartment 102 is in the first gear or the second gear, that is, when the current temperature of the variable temperature compartment 102 reaches the set temperature, at this time the air duct assembly does not ventilate, and the air duct assembly can be in the first state or the second state.

[0077] In summary, the functions of the breathable micropores 301 are as follows: ① When switched to the refrigeration mode, some water vapor can escape to the outside of the cover plate 201 through the breathable micropores 301, preventing berries from mildewing due to excessive humidity in the first container 103 and meeting the humidity requirements of 85%-95% for fruit ingredients; ② When switched to the freezing mode, the cold air flowing through the upper part of the cover plate 201 seeps 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 causing an impact on the temperature of the ingredients, resulting in a large fluctuation in the temperature of the ingredients.

[0078] Referring 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.

[0079] 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.

[0080] Referring 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 better reduced. 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.

[0081] Referring Figure 9 As shown, it can be understood that in some embodiments, the main difference from the Figures 6 to 8 embodiment shown is that the second air duct 602 only has a third air outlet 208 facing the second ventilation opening 207, and does not have a second air outlet 210 facing the first ventilation opening 209.

[0082] 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 refrigerating chamber 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 for the upper sliding tray and the lower drawer.

[0083] 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 and meeting the 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 and realizing the dry-wet separate storage of the first container 103 and the second container 104.

[0084] 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 to cover a larger range of the cover plate 201, which is not conducive to the temperature uniformity. And Figure 9 In the embodiment shown, 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 the temperature uniformity.

[0085] It should be noted that Figure 9 In the embodiment shown, 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.

[0086] 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. A single air supply damper 202 is provided at the bottom of the air duct cover 203. 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. 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 for opening or closing the third air outlet 208, which can adjust the humidity and temperature inside the second container 104 to meet the storage condition requirements of different types of food ingredients.

[0087] 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 through 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 through 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 carry 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.

[0088] 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 through the first air outlet 206 and then 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, it can quickly cool down the first container 103 and the second container 104, realizing dry and wet separation storage and meeting the performance requirements such as storage temperature and freezing capacity.

[0089] When the user sets the variable temperature compartment 102 to the refrigeration mode, 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.

[0090] When the user sets the variable temperature compartment 102 to the freezing mode, 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.

[0091] Refer to Figures 11 to 13As shown, it can be understood that the air control device includes a wind deflector 1101 and a driving member 1301. The driving member 1301 drives the wind deflector 1101 to move to open or close the third air vent 208. The driving member 1301 can be a motor. A gear 1201 is provided at the output end of the motor. The wind deflector 1101 is provided with a rack portion 1202 that meshes with the gear 1201. 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.

[0092] Referring to Figure 13 As shown, it can be understood that the air duct cover 203 is provided with a chute 1302. The wind deflector 1101 is installed in the chute 1302 to slide in the up and down direction along the chute 1302, making the movement direction of the wind deflector 1101 more accurate and the movement process smoother.

[0093] 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 vent 208, the third air vent 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 vent 208, the third air vent 208 is shielded by the wind deflector 1101, and the cold air does not directly enter the second container 104.

[0094] It should be noted that in some other embodiments, the third air vent 208 can also be closed by shielding the third air vent 208 with the wind deflector 1101, and the third air vent 208 can be opened by moving the wind deflector 1101 away from the third air vent 208.

[0095] It can be understood that in some other embodiments, the driving member 1301 can also drive the wind deflector 1101 to move through a transmission mechanism such as a pulley mechanism or a belt drive mechanism. In addition, in some other embodiments, the driving member 1301 can also be to drive the wind deflector 1101 to rotate to open or close the third air vent 208.

[0096] Referring to Figure 14As shown, it can be understood that the refrigerator according to the embodiment of the present invention includes a humidifying component, and the humidifying component is used to adjust the humidity of the first container 103 and the second container 104 to achieve control of humidification. The cover plate 201 is provided at the first opening 105 of the first container 103 so that the first container 103 forms a relatively sealed space. The first container 103 is located at the second opening 106 of the second container 104 so that the second container 104 forms a relatively sealed space. Although the water loss of the first container 103 and the second container 104 is reduced, after working for a period of time, the humidity drops and it may not meet the humidity requirements. Or items with higher required humidity are placed in the first container 103 and the second container 104, and the original space humidity cannot be increased. By adding a humidifying component in the embodiment of the present invention, water vapor or mist is input into the first container 103 and the second container 104 as needed to achieve the effect of actively increasing the humidity.

[0097] Generally speaking, the working process of the humidifying component includes an atomization process and a steam delivery process. The atomization process is to convert liquid water into water vapor to achieve the purpose of humidification. In this process, electrical energy is converted into mechanical energy, and high-frequency oscillation is generated through the atomization sheet to break the liquid water droplets into tiny water droplets, thereby forming water vapor. The steam delivery process is to deliver the generated steam to the space that needs to be humidified to achieve the humidification effect. In this process, the water vapor can be delivered to the area that needs to be humidified through a pipeline or a fan, and at the same time, the humidification process can be intelligently controlled through a humidity sensor and a control circuit to achieve a better humidification effect.

[0098] Refer to Figure 14 As shown, it can be understood that the humidifying component includes a liquid storage box 1402, a water pump 1403, and a humidifying module. The humidifying module includes a first module 1404 and a second module 1405. The first module 1404 is used to humidify the first container 103, and the second module 1405 is used to humidify the second container 104. The water pump 1403 is used to deliver the liquid in the liquid storage box 1402 to the humidifying module. The humidifying component can adopt different technologies to achieve different humidification effects according to different needs. For example, the humidifying module uses the ultrasonic humidification principle, and the water droplets are broken into tiny water droplets through ultrasonic oscillation to achieve the purpose of humidification; for another example, the humidifying module uses the high-pressure spray humidification principle, and the water droplets are broken into tiny water droplets through high-pressure spray to achieve the purpose of humidification; for another example, the humidifying module uses the electrode type humidification principle, and the water is heated to the boiling state to generate steam to achieve the purpose of humidification.

[0099] Refer to Figure 14As shown, it can be understood that the humidification module is located at the rear side of the first container 103 and the second container 104. The first container 103 and the second container 104 are respectively provided with through holes 1406 corresponding to the humidification module. The humidification module is provided with a humidification hole and a moisture-permeable membrane 1407. The humidification hole is arranged facing the through hole 1406, and the moisture-permeable membrane 1407 covers the humidification hole, that is, the moisture-permeable membrane 1407 is located on the side of the humidification module facing the first container 103 and the second container 104. Water vapor permeates through the moisture-permeable membrane 1407 into the through hole 1406 and is transported to the first container 103 and the second container 104, thereby increasing the humidity of the first container 103 and the second container 104. The humidification module is located at the rear side of the first container 103 and the second container 104, which can facilitate the removal and insertion of the first container 103 and the second container 104 and is not prone to interference.

[0100] It should be noted that in some other embodiments, the humidification component can also humidify only one of the first container 103 and the second container 104. In other words, the other one of the first container 103 and the second container 104 is not provided with a corresponding humidification structure for controlled humidification.

[0101] Refer to Figure 2 、 Figure 14 and Figure 15 As shown, it can be understood that a refrigerating chamber 211 is provided in the box body 101, the humidification module is located in the variable temperature chamber 102 to humidify the first container 103 and the second container 104, the liquid storage box 1402 is located in the refrigerating chamber 211, and the water pump 1403 can draw the liquid in the humidification module back to the liquid storage box 1402. When the variable temperature chamber 102 is switched to the second gear, that is, the temperature of the variable temperature chamber 102 is below -1°C, if there is residual liquid in the humidification module, it is easy to freeze and expand, resulting in damage to the humidification module. Or, when the variable temperature chamber 102 is switched from the second gear to the first gear, the ice cubes in the humidification module have not melted, resulting in insufficient water volume and affecting the humidification effect. However, the water pump 1403 in this embodiment can draw the liquid in the humidification module back to the liquid storage box 1402, so that when the variable temperature chamber 102 is switched to the second gear, the liquid in the humidification module is basically drained, thereby avoiding the failure of the humidification module due to icing.

[0102] Refer to Figure 14 As shown, it can be understood that the humidification component further includes a water delivery pipe 1401. The water delivery pipe 1401 penetrates through the foaming layer of the box body 101, and one end of the water delivery pipe 1401 is connected to the water pump 1403, and the other end is connected to the humidification module. The water pump 1403 can draw the liquid from the liquid storage box 1402 and flow into the humidification module through the water delivery pipe 1401, and the water pump 1403 can also draw the liquid back from the humidification module and flow into the liquid storage box 1402 through the water delivery pipe 1401.

[0103] Refer to Figure 14As shown, it can be understood that the water delivery pipe 1401 includes a first branch pipe 1408 and a second branch pipe 1409. One ends of the first branch pipe 1408 and the second branch pipe 1409 are connected to each other. The other end of the first branch pipe 1408 is connected to the first module 1404, and the other end of the second branch pipe 1409 is connected to the second module 1405, so as to realize the parallel arrangement of the first module 1404 and the second module 1405. The parallel arrangement of the first module 1404 and the second module 1405 can facilitate the separate humidity adjustment of the first container 103 and the second container 104. When only one of them needs to be humidity-adjusted, the influence on the other can be reduced.

[0104] It can be understood that a flow dividing valve can be arranged at the connection of the first branch pipe 1408 and the second branch pipe 1409 to control the flow direction of the liquid through the flow dividing valve, so that the liquid only flows to the first module 1404, or only flows to the second module 1405, or flows to the first module 1404 and the second module 1405 at the same time.

[0105] Referring to Figure 14 As shown, it can be understood that the liquid storage box 1402 is provided with a liquid storage cavity 1410 and an article placement cavity 1411. The liquid storage cavity 1410 is used for storing liquid, and the water pump 1403 is arranged in the article placement cavity 1411. The humidifying assembly further includes a water extraction pipe 1412. One end of the water extraction pipe 1412 is connected to the water pump 1403, and the other end is connected to the liquid storage box 1402, that is, the water extraction pipe 1412 penetrates through the partition between the liquid storage cavity 1410 and the article placement cavity 1411. In some embodiments, the liquid storage box 1402 can be divided into two detachable parts, one part is provided with the liquid storage cavity 1410, and the other part is provided with the article placement cavity 1411, so as to facilitate the separate removal of one part for adding water, without the need to disassemble the water delivery pipe 1401 and the water extraction pipe 1412, which is convenient for operation.

[0106] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. Refrigerator, characterized in that, comprising: a box body provided with a refrigerating chamber and a variable-temperature chamber; a first container having a first opening; a cover plate disposed 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; a second container having a second opening, the first container being located at the second opening; a humidifying assembly for adjusting the humidity of at least one of the first container and the second container, the humidifying assembly including a liquid storage box, a water pump and a humidifying module, the water pump being configured to transport the liquid in the liquid storage box to the humidifying module; wherein, the humidifying module, the first container, the cover plate and the second container are located in the variable-temperature chamber, the liquid storage box is located in the refrigerating chamber, the water pump can draw the liquid in the humidifying module back to the liquid storage box, the variable-temperature chamber can operate in a second gear, and when the variable-temperature chamber is in the second gear, the temperature of the variable-temperature chamber is below -1°C.

2. The refrigerator according to claim 1, characterized in that, the humidifying module is located at the rear side of the first container and the second container.

3. The refrigerator according to claim 2, characterized in that, the humidifying module includes a first module and a second module, the first module is used for humidifying the first container, and the second module is used for humidifying the second container.

4. The refrigerator according to claim 3, characterized in that, the first module and the second module are arranged in parallel.

5. The refrigerator according to claim 1, characterized in that, the liquid storage box is provided with a liquid storage cavity and an object placement cavity, the liquid storage cavity is used for storing liquid, and the water pump is arranged in the object placement cavity.

6. The refrigerator according to claim 1, characterized in that, the refrigerator includes an air duct assembly, the second container is provided with a second ventilation opening communicating with the outside, the air duct assembly is used for controlling 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.

7. The refrigerator according to claim 6, characterized in that, the variable-temperature chamber can operate in a first gear, and when the variable-temperature chamber is in the first gear, the temperature of the variable-temperature chamber is 0°C to 5°C.

8. The refrigerator according to claim 7, characterized in that, when ventilation is required to make the variable-temperature chamber in the first gear, the air duct assembly is in the first state or in the second state.

9. The refrigerator according to claim 6, characterized in that, when ventilation is required to make the variable-temperature chamber in the second gear, the air duct assembly is in the second state.

10. The refrigerator according to claim 1, characterized in that, the humidifying module is provided with a moisture-permeable membrane, and the moisture-permeable membrane is located on the side of the humidifying module facing the first container and the second container.

11. The refrigerator according to claim 1, characterized in that, the aperture of the air-permeable micropores is 3.7 mm to 3.9 mm.

12. The refrigerator according to claim 1, Characterized in that, The gap between the cover plate and the first container ranges from 1 mm to 5 mm; the gap between the second container and the first container ranges from 1 mm to 5 mm.

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