WO2023185614A1

WO2023185614A1 - Refrigerator

Info

Publication number: WO2023185614A1
Application number: PCT/CN2023/083280
Authority: WO
Inventors: 张振兴; 张�浩
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-03-31
Filing date: 2023-03-23
Publication date: 2023-10-05
Also published as: CN116928933A

Abstract

Provided is a refrigerator, comprising a refrigerator body and a door body. The door body is internally provided with a door body storage space and an air inlet duct in communication with the door body storage space. An air inlet end of the air inlet duct is coaxial with a rotational axis of the door body. An air outlet end of an air outlet duct of the refrigerator body is rotatably connected to the air inlet end of the air inlet duct around the rotational axis of the door body, and an outlet of the air outlet duct is in communication with an inlet of the air inlet duct. The air outlet end of the air outlet duct is rotatably connected to the air inlet end of the air inlet duct around the rotational axis of the door body, so that the air outlet duct and the air inlet duct form a closed air path. During opening and closing of the door body, duct sealing performance can be improved, and airflow overflow can be prevented.

Description

refrigerator

Technical field

The present invention relates to the technical field of refrigeration and storage, and in particular to a refrigerator.

Background technique

With the improvement of living standards, people have higher and higher requirements for the quality of life. For example, different foods or items need to be stored in different temperature environments. In the prior art, refrigerators have fewer partitions and cannot meet people's needs for storing different foods or items. In the related technology, there is a technology that sets a storage space in the door body of the refrigerator, and transports cold air through the air holes provided on the door body and the box body respectively, so that the refrigerator door body has an independent storage space, but there is a problem due to the door body. Deformation will cause the air holes to be misaligned, which will lead to the failure of the air path and affect the normal use of the door storage space.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a refrigerator that overcomes the above problems or at least partially solves the above problems, can solve the problem of air duct failure in the storage space of the refrigerator door, and achieves adding storage space to the refrigerator that can be used for a long time. Effect.

Specifically, the present invention provides a refrigerator, which is characterized in that it includes a box body and a door body, and the door body is rotatably installed on the box body;

The door body has a door storage space and an air inlet duct connected to the door storage space, and the box body has an air outlet duct;

The air inlet end of the air inlet duct is coaxial with the rotation axis of the door body, and/or, the air outlet end of the air outlet air duct is coaxial with the rotation axis of the door body, and/or, The outlet on the air outlet end of the air outlet duct is coaxial with the rotation axis of the door body, and/or the inlet on the air inlet end of the air inlet air duct is coaxial with the rotation axis of the door body. shaft, so that the air outlet end of the air outlet air duct and the air inlet end of the air inlet air duct are rotatably connected around the rotation axis of the door body or the outlet on the air outlet end of the air outlet air duct The surface on which the inlet is located is always in contact with the surface on the inlet end of the air inlet duct and rotates relatively, and at the same time, the outlet on the outlet end of the air outlet duct is in contact with the inlet end of the inlet air duct. The import on is always connected.

Optionally, the outlet on the air outlet end of the air outlet duct is coaxial with the rotation axis of the door body; the inlet on the air inlet end of the air inlet air duct is coaxial with the rotation axis of the door body. axis;

The inlet on the air inlet end of the air inlet duct is inserted into the outlet on the air outlet end of the air outlet duct, or, The outlet on the air outlet end of the air outlet air duct is inserted into the inlet on the air inlet end of the air inlet air duct, or the inlet on the air inlet end of the air inlet air duct is connected to the air outlet air duct. The outlets on the air outlet ends are aligned and touching each other.

Optionally, the air inlet end of the air inlet duct is coaxial with the rotation axis of the door body, and the air inlet end of the air inlet air duct is inserted into the air outlet air duct, so that the air outlet air The air outlet end of the air duct and the air inlet end of the air inlet air duct are rotationally connected around the rotation axis of the door body; and the inlet on the air inlet end of the air inlet air duct is located at the outlet of the air outlet air duct. In the air end and connected with the air outlet duct, so that the air flow in the outlet air duct enters the air inlet air duct through the inlet on the air inlet end of the air inlet air duct; or,

The air outlet end of the air outlet air duct is coaxial with the rotation axis of the door body, and the air outlet end of the air outlet air duct is inserted into the air inlet air duct, so that the air outlet of the air outlet air duct The end is rotatably connected to the air inlet end of the air inlet duct around the rotation axis of the door body; and the outlet on the air outlet end of the air outlet duct is located in the air inlet end of the air inlet duct and It is connected with the air inlet duct, so that the air flow in the air outlet duct enters the air inlet duct through the outlet on the air outlet end of the air outlet air duct.

Optionally, the air outlet duct includes an air supply section extending in a horizontal direction, and the lower surface of the air supply section is inclined for directing water from the air outlet end of the air supply section to the air supply section. The air inlet end guides the air, and the angle between the lower surface of the air supply section and the horizontal plane is greater than or equal to 4°.

Optionally, a supply fan and damper device are also included;

A cooling chamber is provided in the box, and the inlet of the air outlet duct is connected to the cooling chamber;

The inlet of the air outlet duct is located on the wall of the cooling chamber or within the cooling chamber;

The cooling chamber is also connected to the box storage space of the box;

The damper device is configured to control the opening and closing of the cooling chamber and the box storage space of the box and/or the opening and closing of the air outlet duct;

The air supply fan is configured to promote airflow into the box storage space and the air outlet duct.

Optionally, the outlet on the air outlet end of the air outlet duct is inserted into the inlet on the air inlet end of the air inlet air duct,

An annular opening slot coaxial with the rotation axis of the door body is provided outside the outlet on the air outlet end of the air outlet duct, and the inlet on the air inlet end of the air inlet air duct is inserted into the annular opening slot. open slot;

The inner peripheral wall surface of the annular opening groove is part or all of the outer peripheral wall surface of the outlet on the air outlet end of the air outlet air duct;

The inner annular edge of the opening of the annular opening groove is provided with a chamfer, and the outer annular edge of the opening of the annular opening groove is provided with a chamfer.

Optionally, the air outlet duct further includes an air outlet section, the air outlet section is arranged horizontally, and the air outlet section is connected to the air outlet end of the air supply section; the air outlet section is provided with a vertical connecting pipe, the outlet of the connecting pipe is The outlet on the air outlet end of the air outlet duct, and the inlet of the air supply section are the inlets of the air outlet duct.

Optionally, also includes:

Heating wire, the heating wire is arranged on the outer surface of the air outlet duct, and the heating wire is a film heating wire;

Humidity sensor, the humidity sensor is arranged on the outer surface of the air outlet duct;

A first temperature sensor, the first temperature sensor is arranged on the outer surface of the air outlet duct;

A second temperature sensor is provided in the door storage space.

Optionally, the door body includes a thermal insulation partition, and the door storage space is located inside the thermal insulation partition.

Optionally, the opening of the outlet on the air outlet end of the air outlet air duct faces upward, the air inlet air duct extends along the vertical direction, and the lower end of the air inlet air duct is the lower end of the air inlet air duct. The air inlet end; the side wall of the air inlet duct is provided with an air supply hole connected to the door storage space; the bottom of the door storage space is also provided with a return air hole, and the return air hole is It is connected with the box storage space of the box.

In the refrigerator provided by the present invention, the air outlet end of the air outlet duct of the box body and the air inlet end of the air inlet air duct of the door body are rotationally connected around the rotation axis of the door body or the air outlet end of the air outlet air duct is connected. The surface where the outlet is located and the surface where the inlet is located on the air inlet end of the air inlet air duct are always in contact and relatively rotate, so that the air outlet air duct and the air inlet air duct always form a closed air path. During the opening and closing of the door, the rotation of the air inlet duct relative to the air outlet duct will not affect the stability of the air duct, greatly improving the sealing performance of the air duct, preventing airflow from overflowing, and solving the problem of refrigerator The problem of air duct failure in the door storage space caused by the deformation of the door body makes the refrigerator storage space stable for long-term use.

Furthermore, in the refrigerator of the present invention, since the door body is provided with an independent door storage space wrapped by a thermal insulation partition, the connection between this storage space and the air inlet channel allows the door storage space to cool down and maintain a low temperature. Ensure independent temperature zone control in the door area to preserve food or items. Therefore, the refrigerator of the present invention can provide a refrigeration space or a 0°C space or a soft freezing space on the door body. The user can set the temperature zone according to his own storage needs, thereby making full use of the storage space of the refrigerator and improving the functions of the refrigerator. There are more and more partitions.

Furthermore, in the refrigerator of the present invention, a heating wire is provided on the outer surface of the air outlet duct. When used, the heating wire heats the air outlet duct to ensure that there is no condensation on the outer surface of the air duct. At the same time, the heating wire is a film heating wire, which is directly applied to the outer surface of the air outlet duct, which can quickly and directly heat the air outlet duct and save electricity.

Different from the traditional wire-type heating wire + foam layer anti-condensation method, the volume of the air duct is greatly reduced, which increases the use volume of the refrigerator and improves the volume ratio of the refrigerator. The film heating wire used in this patent is directly attached to the surface of the air duct, heating quickly and directly, saving electricity. Specifically, the original wire heating wires are attached to the inside of the air duct, and the heating is indirect through the air duct. The heating speed of the air duct surface is slow. To prevent condensation, the original air duct needs to be heated to 8°C above the condensation temperature to ensure that the air flow is There is no condensation on the outer surface of the tunnel, resulting in high energy consumption.

From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will further understand the above and other objects, advantages and features of the present invention.

Description of drawings

Some specific embodiments of the invention will be described in detail below by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar parts or portions. Those skilled in the art will appreciate that these drawings are not necessarily drawn to scale. In the attached picture:

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

Figure 2 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Figure 3 is a schematic cross-sectional view of a refrigerator according to one embodiment of the present invention;

Figure 4 is a schematic partial structural diagram of a refrigerator according to an embodiment of the present invention;

Figure 5 is a schematic exploded view of a refrigerator according to one embodiment of the present invention;

Figure 6 is a schematic partial structural diagram of a refrigerator according to an embodiment of the present invention;

Figure 7 is a schematic partial cutaway view of a refrigerator according to one embodiment of the present invention;

Figure 8 is a schematic partial cutaway view of a refrigerator according to one embodiment of the present invention.

Detailed ways

The refrigerator according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 8 . In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood to indicate or imply the relative importance or implicitly indicate the number of indicated technical features. . Therefore, the features defined as “first” and “second” may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited. When a feature "includes or includes" one or some of the features it encompasses, unless specifically described otherwise, this indicates that other features are not excluded and may further be included.

Unless otherwise expressly stipulated and limited, the terms "set", "mounted", "connected", "connected", "fixed" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be an internal connection between two elements or an interaction between two elements, unless otherwise There are clear limits. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

In addition, in the description of this embodiment, a first feature "above" or "below" a second feature may include It includes that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but are in contact through another feature between them. That is to say, in the description of this embodiment, the terms "above", "above" and "above" the second feature include the first feature being directly above and diagonally above the second feature, or simply indicating the level of the first feature. Higher than the second feature. The first feature being "below", "below", or "under" the second feature may mean that the first feature is directly below or diagonally below the second feature, or it may simply mean that the first feature is less horizontally than the second feature.

In the description of this embodiment, reference to the description of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like is meant to be combined with the description. An embodiment or example describes a specific feature, structure, material, or characteristic that is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. As shown in Figure 1 and with reference to Figures 2 to 8, an embodiment of the present invention provides a refrigerator, including a box body 200 and a door body 100. The door body 100 is rotatably installed on the box body 200 . The door body 100 has a door storage space 110 and an air inlet duct 120 connected with the door storage space 110 . The box 200 has an air outlet duct 210 .

The air inlet end of the air inlet duct 120 is arranged coaxially with the rotation axis of the door body 100 . And/or, the outlet 310 on the air outlet end of the air outlet duct 210 is disposed coaxially with the rotation axis of the door body 100 . And/or, the inlet on the air inlet end of the air inlet duct 120 is disposed coaxially with the rotation axis of the door body 100 . And/or, the air outlet end of the air outlet duct 210 is coaxial with the rotation axis of the door body 100 .

With this arrangement, the air outlet end of the air outlet duct 210 and the air inlet end of the air inlet duct 120 can be rotationally connected around the rotation axis of the door body 100, or the outlet 310 on the air outlet end of the air outlet duct 210 can be connected. The surface where the inlet is located is always in contact with the surface where the inlet is located on the air inlet end of the air inlet duct 120 and rotates relatively. Thus, the outlet of the air outlet duct 210 and the inlet of the air inlet duct 120 are always connected.

Therefore, the refrigerator according to the embodiment of the present invention can make the air outlet duct 210 and the air inlet duct 120 form a closed air path. During the opening and closing process of the door body 100, the rotation of the air inlet duct 120 relative to the air outlet duct 210 will not affect the stability of the air path, that is, the stability of the air path can be ensured, and the stability of the air path is greatly improved. The sealing property can prevent airflow from overflowing, so it can solve the problem of air path failure in the refrigerator door storage space due to deformation of the door body 100, etc., and achieve the effect of adding storage space to the refrigerator that can be used for a long time.

For example, in some embodiments of the present invention, the outlet 310 on the air outlet end of the air outlet duct 210 is coaxial with the rotation axis of the door body 100 . The inlet on the air inlet end of the air inlet duct 120 is coaxial with the rotation axis of the door body 100 . The inlet on the air inlet end of the air inlet duct 120 is inserted into the outlet 310 on the air outlet end of the air outlet duct 210 , or the outlet 310 on the air outlet end of the air outlet duct 210 is inserted into the inlet of the air inlet duct 120 . The inlet on the air end, or the inlet on the air inlet end of the air inlet duct 120 and the outlet 310 on the air outlet end of the air outlet duct 210 are aligned and in contact with each other.

The outlet 310 on the air outlet end of the air outlet duct 210 and the inlet on the air inlet end of the air inlet duct 120 are coaxial with the rotation axis of the door body 100 to ensure that the opening and closing of the door body 100 is not affected. At the same time, various ways of connecting the inlet on the inlet end of the air inlet duct 120 and the outlet 310 on the outlet end of the air outlet duct 210 are provided to meet the needs of refrigerators of different models and sizes.

For example, in some embodiments of the present invention, the air inlet end of the air inlet duct 120 is coaxial with the rotation axis of the door body, and the air inlet end of the air inlet air duct 120 is inserted into the air outlet air duct 210 to allow the air to flow out. The air outlet end of the air duct 210 and the air inlet end of the air inlet air duct 120 are rotatably connected around the rotation axis of the door body 100 . And the inlet on the air inlet end of the air inlet duct 120 is located in the air outlet end of the air outlet duct 210 and is connected with the air outlet duct 210, so that the air flow in the air outlet duct 210 passes through the air inlet duct 120. The inlet on the air inlet end enters the air inlet duct 120 . For another example, in some embodiments of the present invention, the air outlet end of the air outlet duct 210 is coaxial with the rotation axis of the door body 100, and the air outlet end of the air outlet duct 210 is inserted into the air inlet duct 120, so that the outlet air duct 210 is inserted into the air inlet duct 120. The air outlet end of the air duct 210 and the air inlet end of the air inlet duct 120 are rotatably connected around the rotation axis of the door body 100 . And the outlet 310 on the air outlet end of the air outlet air duct 210 is located in the air inlet end of the air inlet air duct 120 and is connected with the air inlet air duct 120, so that the air flow in the air outlet air duct 210 passes through the air outlet air duct 210. The outlet 310 on the air outlet end enters the air inlet duct 120.

In some embodiments of the present invention, as shown in FIG. 6 , the air outlet duct 210 includes an air supply section 211 extending in the horizontal direction. Further, the air outlet duct 210 also includes an air outlet section 212. The air outlet section 212 is arranged horizontally. The air outlet section 212 is connected to the air outlet end of the air supply section 211. The air outlet section 212 is provided with a vertical connecting pipe. 330. The outlet of the connecting pipe 330 is the outlet 310 on the air outlet end of the air outlet duct 210, and the inlet of the air supply section 211 is the inlet of the air outlet duct 210.

Preferably, the upper end opening of the connecting pipe 330 is the outlet 310 on the air outlet end of the air outlet duct 210 , and the air inlet duct 120 is provided on the upper side of the air outlet duct 210 . The lower surface of the air supply section 211 is tilted to divert water from the air outlet end of the air supply section 211 to the air inlet end of the air supply section 211. The angle between the lower surface of the air supply section 211 and the horizontal plane is greater than or equal to 4°. . In the refrigerator provided by the embodiment of the present invention, the lower surface of the air supply section 211 is inclined, so that the condensation water in the air supply section 211 can flow to the air inlet end of the air supply section 211 along the lower surface of the air supply section 211, thus avoiding Water accumulates in the air outlet duct 210, affecting the use of the refrigerator. In particular, it is prevented that condensation water in the air inlet duct 120 enters the air supply section 211 and then accumulates in the air supply section 211 .

In some embodiments of the present invention, a cooling chamber 220 is provided in the box 200, and an inlet of the air outlet duct 210 is provided. It is connected with the cooling chamber 220 so that the condensation water in the air supply section 211 can flow to the air inlet end of the air supply section 211 along the lower surface of the air supply section 211, that is, the condensation water in the air supply section 211 flows to the air outlet duct. The inlet of 210 finally flows into the cooling chamber 220, and then enters the evaporator water box and is discharged to avoid random flow of condensation water. With this arrangement, the cooling capacity generated by the evaporator in the cooling room can be directly utilized.

In some embodiments of the present invention, the box 200 includes an outlet upper cover, an outlet lower seat, and an air outlet duct. The outlet upper cover and the outlet lower seat are connected and define a part of the air outlet section 212 and the air supply section 211. The air outlet duct defines the remaining portion of the air supply section 211. This arrangement facilitates design, processing and manufacturing.

There is a box storage space inside the box 200, and a part of the air supply section 211, that is, the air outlet duct, can be disposed in the box storage space. The air outlet section extends along the left and right directions. Another part of the air supply section 211 can enable the air outlet section to be spaced apart from the box. The connecting pipe 330 is provided at the rear side of the air outlet section. The door body also has a giving space, and the other part of the air supply section 211 and the air outlet section can be located in the giving space of the door body. This arrangement ensures that the cold energy of the air outlet duct will not leak to the outside of the refrigerator. The special structure of the air outlet duct will not cause rotational interference of the door body, and ensures the sealing effect of the door body to the greatest extent.

In some preferred embodiments of the present invention, as shown in FIGS. 7 to 8 , the outlet 310 on the air outlet end of the air outlet duct 210 is inserted into the inlet on the air inlet end of the air inlet duct 120 . An annular opening slot 320 coaxial with the rotation axis of the door body 100 is provided outside the outlet 310 on the air outlet end of the air outlet duct 210 , and the inlet on the air inlet end of the air inlet air duct 120 is inserted into the annular opening slot 320 . The inner peripheral wall surface of the annular opening groove 320 is part or all of the outer peripheral wall surface of the outlet 310 on the air outlet end of the air outlet duct 210 . The annular opening groove 320 is used to achieve a better sealing effect between the air outlet duct 210 and the air inlet duct 120 .

Specifically, a sleeve 340 is set on the outside of the connecting pipe 330 , and the sleeve 340 and the connecting pipe 330 are connected through a connecting ring, so that the connecting pipe 330 , the sleeve 340 and the connecting ring define an annular opening groove 320 . If there are multiple annular opening grooves 320, then there are multiple corresponding sleeves 340, and the multiple sleeves 340 are assembled in sequence. The inlet on the air inlet end of the corresponding air inlet duct 120 may have a plurality of insertion rings, and a plurality of annular opening grooves 320 are respectively inserted.

In some embodiments of the present invention, the distance between the end of the inner peripheral wall surface of the annular opening groove 320 away from the bottom wall surface of the annular opening groove 320 and the bottom wall surface is greater than the distance between the outer peripheral wall surface of the annular opening groove 320 away from the annular opening groove 320 The distance between one end of the bottom wall and the bottom wall.

In some embodiments of the present invention, at least one of the inner peripheral wall surface, the outer peripheral wall surface and the bottom wall surface of the annular opening groove 320 is spaced apart from the corresponding surface of the inlet on the air inlet end of the air inlet air duct 120 . Furthermore, when two of the inner circumferential wall surface, the outer circumferential wall surface and the bottom wall surface of the annular opening groove 320 are spaced apart from the corresponding surface of the inlet on the air inlet end of the air inlet air duct 120, the distance between the two spaced apart spaces is unequal. . Optionally, annular ridges are provided on the inner peripheral wall surface, the outer peripheral wall surface and/or the bottom wall surface of the annular opening groove 320. The annular convex ribs It is in contact with the inlet on the air inlet end of the air inlet duct 120 . In other embodiments of the present invention, at least one of the inner peripheral wall surface, the outer peripheral wall surface and the bottom wall surface of the annular opening groove 320 is in contact with or in contact with the corresponding surface of the inlet on the air inlet end of the air inlet air duct 120 .

In some embodiments of the present invention, a chamfer 350 is provided at the inner annular edge of the opening of the annular opening groove 320 , and a chamfer 350 is provided at the outer annular edge of the opening of the annular opening groove 320 . During installation, the chamfer 350 can guide the insertion of the air inlet end of the air inlet duct 120, making the installation of the air inlet duct 120 convenient and quick. The connecting tube 330, the sleeve 340 and the connecting ring may be collectively referred to as the air supply connecting device 300. Of course, an annular opening groove 320 can also be opened on a larger supporting surface to form an outlet 310 at the air outlet end of the air outlet duct 210, and the outlet 310 has an annular opening groove 320 on the outside.

In some embodiments of the invention, the refrigerator further includes a heating wire 400 . The heating wire 400 is disposed on the outer surface of the air outlet duct 210. Specifically, film heating wires are disposed on the outer surfaces of the air outlet extension section, the horizontal section, and the air outlet section in the box. The heating wire 400 is a film heating wire. During use, the heating wire 400 heats the air outlet duct 210 to ensure that there is no condensation on the outer surface of the air duct. At the same time, the film heating wire is directly applied to the outer surface of the air outlet duct 210, which can quickly and directly heat the air outlet duct 210 and save electric energy.

In some embodiments of the present invention, as shown in Figures 2 and 3, the refrigerator further includes a humidity sensor 500 and a first temperature sensor 600. The humidity sensor 500 is disposed on the outer surface of the air outlet duct 210 . The first temperature sensor 600 is disposed on the outer surface of the air outlet duct 210 . The humidity sensor 500 is used to detect the humidity on the outer surface of the outlet air duct 210, and the first temperature sensor 600 is used to detect the temperature on the outer surface of the outlet air duct 210, and determine the condensation temperature conditions at the temperature and humidity according to the temperature and humidity. The air outlet duct 210 is heated so that the outer surface temperature of the air outlet duct is higher than the preset value of the condensation temperature condition, and the preset value is 1°C to 3°C. A humidity sensor 500 and a first temperature sensor 600 are provided on the lower surface of the air outlet extension section.

That is to say, computer AI processing, based on real-time condensation conditions, dynamically adjusts the heating power to prevent condensation on the air duct surface, so that the temperature of the air duct surface increases to about 1 to 3°C under the existing condensation temperature conditions. Real-time adjustment of heating power ensures sufficient heating. Different from the traditional wire-type heating wire + foam layer anti-condensation method, the volume of the air duct is greatly reduced, which increases the use volume of the refrigerator and improves the volume ratio of the refrigerator. Directly heats the air duct surface, heating quickly and directly, saving electricity. Specifically, the original wire heating wires are attached to the inside of the air duct, and the heating is indirect through the air duct. The heating speed of the air duct surface is slow. To prevent condensation, the original air duct needs to be heated to 8°C above the condensation temperature to ensure that the air flow is There is no condensation on the outer surface of the tunnel, resulting in high energy consumption.

In some embodiments of the present invention, the refrigerator further includes a second temperature sensor 700 , and the second temperature sensor 700 is disposed in the door storage space 110 . The second temperature sensor 700 is used to detect the temperature of the door storage space 110 .

In some embodiments of the present invention, the door body 100 includes an insulation partition, and the door storage space 110 is located inside the insulation partition. Since the door 100 is provided with an independent door storage space 110 wrapped by a thermal insulation layer, the door storage space 110 is cooled down and kept at a low temperature, ensuring independent temperature zone control of the door area to preserve food or items. Therefore, the refrigerator of the present invention can provide a refrigeration space or a 0° space or a soft freezing space on the door 100. The user can set the temperature zone according to his own storage needs, thereby making full use of the storage space of the refrigerator and making the refrigerator more efficient. There are more and more functional partitions.

In some embodiments of the present invention, as shown in FIGS. 2 and 3 , the air inlet duct 120 extends in the vertical direction, and the lower end of the air inlet duct 120 is the air inlet end of the air inlet duct 120 . The side wall of the air inlet duct 120 is provided with an air supply hole 121 that communicates with the door storage space 110 . The bottom of the door storage space 110 is also provided with a return air hole 111 , and the return air hole 111 is connected with the box storage space of the box 200 . During use, the low-temperature airflow enters the door storage space 110 from the air supply hole 121 of the air inlet duct 120, bringing cooling to the door storage space 110, and then the airflow flows out of the door storage space from the return air hole 111. Space 110, forming a loop.

In some embodiments of the present invention, the refrigerator further includes an air supply fan and a damper device. The cooling chamber 220 is also connected with the box storage space of the box 200 . The damper device is configured to control the opening and closing of the cooling chamber 220 and the box storage space of the box 200 and/or the opening and closing of the air outlet duct. The air supply fan is configured to promote air flow into the box storage space and the air outlet duct 210 .

By now, those skilled in the art will appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, the disclosed embodiments may still be practiced in accordance with the present invention without departing from the spirit and scope of the present invention. The content directly identifies or leads to many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A refrigerator, characterized in that it includes a box body and a door body, and the door body is rotatably installed on the box body;

The door body has a door storage space and an air inlet duct connected to the door storage space, and the box body has an air outlet duct;

The air outlet end of the air outlet air duct and the air inlet end of the air inlet air duct are rotationally connected around the rotation axis of the door body or the surface of the outlet on the air outlet end of the air outlet air duct is connected to the surface of the air inlet air duct. The surface of the inlet on the air inlet end of the air inlet air duct is always in contact and rotates relatively, and the outlet on the air outlet end of the air outlet air duct is always connected with the inlet on the air inlet end of the air inlet air duct.
The refrigerator according to claim 1, characterized in that:

The air inlet end of the air inlet duct is coaxial with the rotation axis of the door body, and/or, the air outlet end of the air outlet air duct is coaxial with the rotation axis of the door body, and/or, The outlet on the air outlet end of the air outlet duct is coaxial with the rotation axis of the door body, and/or the inlet on the air inlet end of the air inlet air duct is coaxial with the rotation axis of the door body. shaft, so that the air outlet end of the air outlet air duct and the air inlet end of the air inlet air duct are rotatably connected around the rotation axis of the door body or the outlet on the air outlet end of the air outlet air duct The surface on which the inlet is located is always in contact with the surface on the inlet end of the air inlet duct and rotates relatively, and at the same time, the outlet on the outlet end of the air outlet duct is in contact with the inlet end of the inlet air duct. The import on is always connected.
The refrigerator according to claim 1, characterized in that:

The outlet on the air outlet end of the air outlet duct is coaxial with the rotation axis of the door body; the inlet on the air inlet end of the air inlet air duct is coaxial with the rotation axis of the door body;

The inlet on the air inlet end of the air inlet duct is inserted into the outlet on the air outlet end of the air outlet duct, or the outlet on the air outlet end of the air outlet duct is inserted into the air inlet duct. The inlet on the air inlet end of the air inlet duct, or the inlet on the air inlet end of the air inlet duct and the outlet on the air outlet end of the air outlet duct are aligned and in contact with each other.
The refrigerator according to claim 1, characterized in that:

The air inlet end of the air inlet duct is coaxial with the rotation axis of the door body, and the air inlet end of the air inlet air duct is inserted into the air outlet air duct, so that the air outlet of the air outlet air duct The end is rotatably connected to the air inlet end of the air inlet duct around the rotation axis of the door body; and the inlet on the air inlet end of the air inlet air duct is located at the air outlet of the air outlet air duct. end and communicated with the air outlet duct, so that the air flow in the air outlet duct enters the air inlet duct through the inlet on the air inlet end of the air inlet air duct; or,

The air outlet end of the air outlet air duct is coaxial with the rotation axis of the door body, and the air outlet end of the air outlet air duct is inserted into the air inlet air duct, so that the air outlet of the air outlet air duct The end is rotatably connected to the air inlet end of the air inlet duct around the rotation axis of the door body; and the outlet on the air outlet end of the air outlet duct is located in the air inlet end of the air inlet duct and It is connected with the air inlet duct, so that the air flow in the air outlet duct enters the air inlet duct through the outlet on the air outlet end of the air outlet air duct.
The refrigerator according to claim 1, further comprising an air supply fan and a damper device;

The air outlet duct includes an air supply section extending in the horizontal direction. The lower surface of the air supply section is inclined and used to direct water from the air outlet end of the air supply section to the air inlet end of the air supply section. For drainage, the angle between the lower surface of the air supply section and the horizontal plane is greater than or equal to 4°;

A cooling chamber is provided in the box, and the inlet of the air outlet duct is connected to the cooling chamber;

The cooling chamber is also connected to the box storage space of the box;

The damper device is configured to control the opening and closing of the cooling chamber and the box storage space of the box and/or the opening and closing of the air outlet duct;

The air supply fan is configured to promote airflow into the box storage space and the air outlet duct.
The refrigerator according to claim 3, characterized in that:

The outlet on the air outlet end of the air outlet duct is inserted into the inlet on the air inlet end of the air inlet duct,

An annular opening slot coaxial with the rotation axis of the door body is provided outside the outlet on the air outlet end of the air outlet duct, and the inlet on the air inlet end of the air inlet air duct is inserted into the annular opening slot. open slot;

The inner peripheral wall surface of the annular opening groove is part or all of the outer peripheral wall surface of the outlet on the air outlet end of the air outlet air duct;

The inner annular edge of the opening of the annular opening groove is provided with a chamfer, and the outer annular edge of the opening of the annular opening groove is provided with a chamfer.
The refrigerator according to claim 4, characterized in that:

The air outlet duct also includes an air outlet section, the air outlet section is arranged horizontally, and the air outlet section is connected to the air outlet end of the air supply section; the air outlet section is provided with a vertical connecting pipe, The outlet of the connecting pipe is the outlet on the air outlet end of the air outlet duct, and the inlet of the air supply section is the inlet of the air outlet duct.
The refrigerator according to claim 1, further comprising:

Heating wire, the heating wire is arranged on the outer surface of the air outlet duct, and the heating wire is a film heating wire;

Humidity sensor, the humidity sensor is arranged on the outer surface of the air outlet duct;

A first temperature sensor, the first temperature sensor is arranged on the outer surface of the air outlet duct;

A second temperature sensor is provided in the door storage space.
The refrigerator according to claim 1, characterized in that:

The door body includes a thermal insulation partition, and the door storage space is located inside the thermal insulation partition.
The refrigerator according to claim 3, characterized in that:

The opening of the outlet on the air outlet end of the air outlet air duct faces upward, the air inlet air duct extends along the vertical direction, and the lower end of the air inlet air duct is the air inlet end of the air inlet air duct; The side wall of the air inlet duct is provided with an air supply hole connected with the door storage space; the bottom of the door storage space is also provided with a return air hole, and the return air hole is connected with the box The storage space of the body is connected.