WO2023088151A1

WO2023088151A1 - Refrigerator

Info

Publication number: WO2023088151A1
Application number: PCT/CN2022/130926
Authority: WO
Inventors: 赵振雨; 朱小兵; 张延庆; 宋向鹏; 赵斌堂; 芦勇
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: 2021-11-16
Filing date: 2022-11-09
Publication date: 2023-05-25
Also published as: EP4435355A1; WO2023088151A8; AU2022389259A1; CN116136349A

Abstract

The present invention provides a refrigerator, comprising: a refrigerator body; a door body; and a refrigeration system, comprising a compressor, a condenser, and a door body evaporator which are connected in sequence. The condenser is connected to the door body evaporator by means of an air inlet pipe, and the door body evaporator is connected to the compressor by means of an air return pipe; a pipe opening is formed on the refrigerator body, and the air return pipe penetrates out of a hinge shaft on one side of the door body and penetrates into a refrigerator body heat insulation layer via the pipe opening; the refrigerator further comprises a heat insulation hinge cover plate, and the hinge cover plate at least covers the air return pipe arranged between the hinge shaft and the pipe opening.

Description

refrigerator

technical field

The invention relates to the field of household appliances, in particular to a refrigerator.

Background technique

In order to meet the user's demand for ice, some refrigerators are equipped with an ice-making compartment on the refrigerating door. The ice-making compartment is equipped with an ice-making device and an independent ice-making evaporator that supplies cold air to the ice-making compartment. The compressor and The condenser is often installed in the compressor compartment on one side of the box, and the ice-making evaporator and the compressor are connected by a return air pipe, which passes through the insulation layer of the refrigerator door and enters the insulation layer of the box body , but because the temperature of the refrigerant in the air return pipe is low, and the return air pipe between the refrigerator door and the box is exposed outside, condensation will occur.

Contents of the invention

In order to solve the above problems, the present invention proposes a refrigerator, which can avoid condensation in the air return pipe.

In order to achieve one of the objectives of the above invention, an embodiment of the present invention provides a refrigerator, including:

box;

a door body, the door body is pivotally connected to the box body through a hinge;

A refrigeration system, which includes a compressor, a condenser, and a door evaporator connected in sequence, the compressor and the condenser are arranged on the side of the box, and the door evaporator is arranged in the door; The condenser is connected to the door body evaporator through an air intake pipe, and the door body evaporator is connected to the compressor through a return air pipe;

The box body is provided with a pipe opening, and the air return pipe passes through the hinge shaft on one side of the door body, passes through the pipe opening, and penetrates into the heat insulation layer of the box body;

The refrigerator also includes a heat-insulating hinge cover, and the hinge cover covers at least the air return pipe disposed between the hinge shaft and the duct opening.

As a further improvement of an embodiment of the present invention, the refrigeration system further includes a capillary tube disposed on the side of the door body and between the condenser and the door body evaporator.

As a further improvement of an embodiment of the present invention, the air intake pipe passes through the hinge shaft on the side of the door body, passes through the pipe opening, and penetrates into the heat insulation layer of the box body, and the hinge cover plate covers at least An air intake pipe between the hinge shaft and the duct opening.

As a further improvement of an embodiment of the present invention, the box includes an outer shell and an inner tank, the heat insulation layer is located between the outer shell and the inner tank, and the inner tank forms a storage compartment.

As a further improvement of an embodiment of the present invention, the air return pipe between the hinge shaft on the door body side and the pipe opening includes an air return hose, and the air return pipe between the hinge shaft on the door body side and the pipe opening The trachea includes an air intake hose within which the return air hose is placed.

As a further improvement of an embodiment of the present invention, the air return pipe between the hinge shaft on the side of the door body and the pipe opening includes an air return hose, and a heating wire is embedded in the wall of the air return hose.

As a further improvement of an embodiment of the present invention, the hinge cover includes a hinge housing and thermal insulation foam fixed inside the hinge housing.

As a further improvement of an embodiment of the present invention, the axis of the pipe opening is parallel to the axis of the hinge shaft, and the hinge cover covers the hinge shaft and the pipe opening.

As a further improvement of an embodiment of the present invention, the side of the box is provided with a compressor chamber for installing the compressor, the air return pipe includes an air return hose and an air return copper pipe, and the air return hose is connected from The hinge shaft on the side of the door passes through the heat insulation layer of the box body from the pipe opening, and then penetrates into the press chamber to connect with the return air copper pipe.

As a further improvement of an embodiment of the present invention, the air intake pipe includes an air intake hose and an air intake copper pipe, and the air intake hose enters the box from the hinge shaft on the side of the door through the pipe opening body heat insulation layer and enter the press chamber through the box heat insulation layer to connect with the intake copper pipe.

As a further improvement of an embodiment of the present invention, a compressor compartment for installing the compressor is provided on the side of the box body, and the air return pipe includes an air return hose and an air return copper pipe, and the air return copper pipe comes from The press chamber passes through the heat insulation layer of the box body and passes through the pipe opening, and the return air hose passes through the hinge shaft and extends to the side of the box body to connect with the return air copper pipe.

As a further improvement of an embodiment of the present invention, the air intake pipe includes an air intake hose and an air intake copper pipe, and the air intake copper pipe passes through the heat insulation layer of the box from the press chamber to the The pipe mouth passes through, and the air intake copper pipe passes through the side of the extended box body from the hinge shaft to connect with the air intake copper pipe. The box body is provided with a pipeline accommodation groove and closes the pipeline accommodation groove The heat insulation cover, the pipe opening is set in the pipeline receiving tank, the interface between the air intake hose and the air intake copper pipe and the interface between the return air hose and the return air copper pipe Placed in the pipeline containing groove.

As a further improvement of an embodiment of the present invention, the heat insulation cover is integrally formed with the hinge cover, and the heat insulation cover is a part of the hinge cover.

As a further improvement of an embodiment of the present invention, the storage compartment formed in the box includes a refrigerated compartment and a freezer compartment, and an ice-making compartment is provided on the refrigerated door for opening and closing the refrigerated compartment. The door body evaporator is arranged in the ice-making room.

As a further improvement of an embodiment of the present invention, a guide groove for accommodating the air return pipe is provided on the hinge cover plate.

In the refrigerator provided by the present invention, the heat-insulating hinge cover plate is arranged on the refrigerator, and the hinge cover plate covers the air return pipe, so as to prevent the air return pipe between the hinge shaft of the door body and the pipe opening of the box body from being exposed on the outside to generate condensation , In the refrigerator assembly and manufacturing process, it is only necessary to install the hinge cover after assembling the box body, door body, refrigeration system, etc. The overall space occupation is small, the operation is simple and beautiful.

Description of drawings

Fig. 1 is a perspective view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of explosion of the refrigerator shown in Fig. 1;

Fig. 3 is a schematic diagram of the refrigeration system of the refrigerator shown in Fig. 1;

Fig. 4 is a schematic diagram of an explosion of a refrigerator according to another embodiment of the present invention;

Fig. 5 is a sectional view of a return air hose according to another embodiment of the present invention;

Fig. 6 is a partial schematic diagram of yet another embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of the air intake hose and the air return hose shown in FIG. 6 .

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Referring to Fig. 1 and Fig. 2, it is a refrigerator 100 according to an embodiment of the present invention. The refrigerator 100 includes a box body 110 and a door body 120 for opening and closing the box body 110. The door body 120 can be pivotally connected to the box body through a hinge 130. body 110, the hinge 130 has a hinge plate fixedly connected with the box body 110 and a hinge shaft 132 pivotally connected with the door body 120, the door body 110 is provided with a door shaft, the hinge shaft 132 is connected with the door shaft, so that the door body can be relatively The box rotates. Both the box body 110 and the door body 120 can be provided with a heat insulating layer, so as to prevent the cold air in the refrigerator 100 from being lost. Specifically, the box body 110 may include an outer shell and an inner liner, and a heat insulating layer is provided between the outer shell and the inner liner. The door body 120 may include a door shell and a door lining, and a heat insulating layer is arranged between the door shell and the door liner. The thermal layer may be a foam material. The inner container of the box body 110 forms a storage compartment, and the storage compartment may include a refrigerator compartment and a freezer compartment.

The door body 120 of the refrigerated compartment can be provided with an ice-making compartment and an ice-making small door for opening and closing the ice-making compartment, and the ice-making small door is filled with heat insulating material to separate the ice-making compartment and the refrigerating compartment. Insulation, ice making devices and ice storage devices can be installed in the ice making room.

The refrigerator 100 also includes a refrigeration system 200 , referring to FIG. 2 and FIG. 3 , the refrigeration system 200 may include a compressor 230 , a condenser 240 , a door capillary 250 and a door evaporator 260 connected in sequence. The compressor 230 and the condenser 240 can be installed on one side of the box body 110, such as a compressor compartment can be arranged on one side of the box body 110, the compressor compartment can be placed at the bottom of the box body 110, and the compressor 230 and the condenser 240 can be installed in the press chamber.

In this embodiment, the door evaporator 260 may be installed in the door 120, specifically, the door evaporator 260 may be installed inside the ice making room for supplying cold air to the ice making room. One side of the box 110 is also provided with a box evaporator 280 and a box capillary 270, the box evaporator 280 can be used to supply cold air to the refrigerator and freezer, the box evaporator 280 and the door evaporator 260 can share the compressor 230 and condenser 240. Specifically, the compressor 230 is connected to the condenser 240 through a refrigerant pipe, and the condenser 240 is connected to a one-inlet and two-outlet solenoid valve 290 to supply refrigerant to the door body evaporator 260 and the box body evaporator 280 respectively, and flows through the door body evaporator 260 The refrigerant in the tank evaporator 280 returns to the compressor 230 of the compressor compartment.

In this embodiment, the condenser 240 and the door body evaporator 260 can be connected through the intake pipe 210 , and the door body evaporator 260 and the compressor 230 can be connected through the air return pipe 220 . The air intake pipe 210 can pass through the heat insulation layer of the box body 110 from the compressor chamber and then penetrate into the heat insulation layer of the door body 120 to connect with the door body evaporator 260, and one end of the air return pipe 220 is connected to the door body evaporator 260 and passes through the door body The heat insulation layer of 120 penetrates into the heat insulation layer of box body 110 again, and finally penetrates into the compressor chamber to connect with compressor 230 .

In one embodiment of the present invention, a pipe opening 111 is provided on the box body 110, and the pipe opening 111 can be arranged on the top of the box body 110, and the air return pipe 220 passes through the door on one side of the door body 120 from the heat insulation layer of the door body 120. The shaft passes through the hinge shaft 132 on one side of the door body 120 and penetrates into the heat insulation layer of the box body 110 from the pipe opening 111 on the box body 110 . The refrigerator 100 also includes a heat-insulating hinge cover 131 , and the hinge cover 131 covers at least the exposed air return pipe 220 disposed between the hinge shaft 132 and the pipe opening 111 . The hinged cover plate 131 can be directly installed on the box body 110 by fasteners such as screws. Since the hinged cover plate 131 is heat-insulated and covers the part of the air return pipe 220 exposed on the outside of the box body 110 and the door body 120, the air return pipe 220 does not In direct contact with the outside world, therefore, no condensation will occur on the outside of the low-temperature air return pipe 220 . The hinged cover 131 covers the air return pipe 220 , which is more beautiful overall, and has a compact structure and is easy to install and manufacture.

In this embodiment, the hinge cover 131 includes a hinge housing and thermal insulation foam fixed on the inside of the hinge housing. The thermal insulation foam can be clipped and fixed on the inner side of the hinge housing. , directly install the hinge cover 131, and the installation process is simple.

A pipeline guide box 140 can also be arranged on the box body 110. Specifically, the pipeline guide box 140 can be set on the edge of the top box opening side of the box body 110. The pipeline guide box 140 includes a pipe on the side near the hinge 130. The road guide groove 141 , the air intake pipe 210 and the air return pipe 220 can pass through the pipe guide groove 141 and then enter the pipe opening 111 . The hinge cover 131 covers the pipeline guide groove 140 and abuts against the sidewall of the pipeline guide groove 141 , the pipeline guide groove 141 can guide and position the pipeline while limiting the hinge cover 131 .

Further, the hinge cover 131 may also be provided with a guide groove for accommodating the air return pipe 220 . Specifically, the guide groove can be arranged on the thermal insulation foam. When the hinge cover plate 131 is installed on the door body 120, the air return pipe 220 passes through the guide groove of the hinge cover plate 131 after passing through the hinge shaft 132 on one side of the door body 120. The pipe opening 111 on the box body 110 penetrates into the heat insulation layer of the box body 110, and the guide groove can position the air return pipe 220, so that the air return pipe 220 is more tightly covered and the anti-condensation effect is improved.

Further, in one embodiment of the present invention, the door capillary 250 can be arranged in the door 120, specifically, the door capillary 250 can be arranged in the heat insulation layer of the door 120, and the condenser 240 and the door capillary 250 are connected through the first air intake pipe, and the door body capillary 250 and the door body evaporator 260 are connected through the second air intake pipe. The hinge shaft 132 penetrates the door shaft of the door body 120 and then enters the heat insulation layer of the door body 120 to be connected with the door body capillary tube 250 . The door body capillary 250 can also partially extend into the door shaft of the door body 120 , and the first air intake pipe is connected to the door shaft through the hinge shaft 132 on one side of the door body 120 and connected with the door body capillary tube 250 . The capillary tube 250 of the door body and the air return tube 220 at least partially form a tube bundle so as to ensure the heat exchange effect.

The part of the first air intake pipe between the door body 120 and the box body 110 is exposed on the outside of the door body 120 and the box body 110, but because the door body capillary tube 250 is arranged in the door body 120, the refrigeration flowing through the first air intake pipe The refrigerant is a normal temperature refrigerant, and the first air intake pipe will not cause condensation.

Further, the air intake pipe 210 can pass through the pipe opening 111 on the box body 110 and then penetrate the door shaft of the door body 120 from the hinge shaft 132 on one side of the door body 120 and then penetrate into the heat insulation layer of the door body 120. The hinge cover 131 can cover the intake pipe 210 disposed between the hinge shaft 132 and the duct opening 111 . In this way, even if the door body capillary 250 is arranged on the side of the box body 110 , the air intake pipe 210 will not generate condensation.

The air return pipe 220 may include an air return hose 221 and an air return copper pipe 222 connected to the air return hose 221 , the air intake pipe 210 may include an air intake hose 211 and an air intake copper pipe 212 , the air intake hose 211 and the air return pipe 222 The hose 221 extends at least from the hinge shaft 132 on one side of the door body 120 to the side of the box body 110, so as not to hinder the opening and closing of the door body 120, and the hose has high toughness, which is not easy to be damaged by the rotation of the door body 120, and the air intake The copper pipe 212 and the return air copper pipe 222 can ensure better heat exchange effect.

Specifically, the air intake pipe 210 may include an air intake copper pipe placed on one side of the door body 120 and an air intake copper pipe 212 placed on one side of the box body 110, and the air intake copper pipe on one side of the door body 120 may be embedded in the door body In the heat insulation layer of 120, both ends of the air intake hose 211 can be respectively connected to the air intake copper pipe on the side of the door body 120 and the air intake copper pipe 212 on the side of the box body 110. The air intake hose 211 can pass through the door shaft of the door body 120 from the hinge shaft on one side of the door body 120, and be connected with the air intake copper pipe on one side of the door body 120 in the door shaft of the door body 120, or can directly extend into the door In the heat insulation layer of the door body 120, it is connected with the intake copper pipe on one side of the door body in the heat insulation layer of the door body 120. The intake copper tube 212 on one side of the box body 110 can be connected to the condenser 240 in the compressor chamber, and the intake copper tube on the side of the door body 120 can be connected to the door body capillary tube 250 .

The return air copper pipe 222 also includes the return air copper pipe 222 placed on the side of the box body 110 and the return air copper pipe placed on the door body 120 side, the return air copper pipe 222 on the side of the box body 110 and the The refrigerant inlet is connected, the return air copper pipe on the side of the door body 120 is connected to the refrigerant outlet of the door body evaporator 260, and the two ends of the return air hose 221 can be respectively connected to the intake copper pipe 212 on the side of the box body 110 and The air intake copper pipe on one side of the door body 120. The air return hose 221 can pass through the door shaft of the door body 120 from the hinge shaft on one side of the door body 120, and be connected with the air return copper pipe on one side of the door body 120 in the door shaft. The entry shaft enters the heat insulation layer of the door body 120 behind, and is connected with the return air copper pipe on one side of the door body 120 in the heat insulation layer of the door body 120 .

Further, in one embodiment of the present invention, the axis of the pipe opening 111 on the box body 110 is parallel to the axis of the hinge shaft 132 , and the hinge cover 131 covers the hinge shaft 132 and the pipe opening 111 .

In this embodiment, the air return pipe 220 and the air intake pipe 210 can pass through the hinge shaft 132 of the door body 120 at the same time, and then pass through the pipe opening 111 into the inside of the box body 110. The damage to the air return pipe 220 and the air intake pipe 210 can be reduced during the rotation of the body 120 .

Both the air intake hose 211 and the return air hose 221 pass through the hinge shaft 132 on one side of the door body 120, and then penetrate into the heat insulation layer of the box body 110 from the pipe opening 111 and pass into the press chamber respectively. The inner air intake copper pipe 212 is connected with the return air copper pipe 222. A water supply device can also be provided in the refrigerator 100, and the water supply device can supply water to the ice making device in the ice making room, and the water pipe of the water supply device can also pass through the hinge shaft 132 on one side of the door body 120 through the heat insulation layer of the door body 120. Entering into the heat insulation layer of the box body 110 through the pipe opening 111, the water pipe, the return air hose 221 and the air intake hose 211 can form a tube bundle, which is convenient for installation and manufacture. And the interface between the air return hose 221 and the air return copper pipe 222 on one side of the box body 110, and the interface between the air intake hose 211 and the air intake copper pipe 212 are all set in the press chamber, and there is no need to set additional on the box body 110. To connect the space, the hinge cover 131 directly covers the area between the hinge shaft 132 on one side of the door body 120 and the pipe opening 111 to prevent condensation in the air return pipe 220, and the overall structure is compact.

Referring to Fig. 4, in another embodiment of the present invention, the box body 110 is provided with a pipeline receiving groove 112 and a heat insulation cover 113 closing the pipeline receiving groove 112, and the pipeline opening 111 can be arranged in the pipeline receiving groove 112. Both the air intake copper pipe 212 and the air return copper pipe 222 penetrate into the heat insulation layer of the box body 110 from the press chamber and pass through the pipe port 111 on the box body 110, respectively connect with the air intake hose 211 and the air return soft pipe. Tube 221 is connected. The interface between the air intake hose 211 and the air intake copper pipe 212 and the interface between the air return hose 221 and the air return copper pipe 222 are both arranged in the pipeline receiving groove 112 .

In this embodiment, the top of the box body 110 is recessed to form a pipeline receiving groove 112, the pipeline opening 111 is arranged on the side wall of the pipeline receiving groove 112, the heat insulation cover 113 and the hinge cover plate 131 can be set separately, and the return air is soft. The pipe 221 penetrates into the hinge cover 131 from the hinge shaft 132 of the door body 120, and then passes through the hinge cover 131 into the heat insulation cover 113. The heat insulation cover 113 and the hinge cover 131 jointly cover the hinge on one side of the door body 120. The gas return pipe 220 between the shaft 132 and the pipe opening 111. The heat insulation cover 113 is a part of the hinge cover 131, and the heat insulation cover 113 can also be integrally formed with the hinge cover 131, so that the installation and manufacture are more convenient.

In this way, since the price of the hose is higher than that of the copper pipe, such an arrangement can reduce the length of the hose, reduce the manufacturing cost, and facilitate installation and manufacture.

Referring to FIG. 5 , in another embodiment of the present invention, at least a heating wire 223 is embedded in the wall of the return air hose 221 between the hinge shaft 132 on one side of the door body 120 and the pipe opening 111 of the box body 110 . The air return hose 221 extends at least from the hinge shaft 132 on one side of the door body 120 to one side of the box body 110 to prevent the air return pipe 220 from hindering the opening and closing of the door body 120 and prolong the service life of the air return pipe 220 .

The heating wire 223 can pass through the end surface of one end of the return air hose 221 and be connected with the wire harness. For example, the heating wire 223 can be turned on only when the compressor 230 is working to supply refrigerant to the door body evaporator 260 .

The part of the air return hose 221 placed between the hinge shaft 132 on one side of the door body 120 and the pipe port 111 of the box body 110 is exposed to the external environment, because the refrigerant flowing through the air return hose 221 is a low-temperature refrigerant, Therefore, condensation is likely to occur on the outside of the return air hose 221 . And by embedding the heating wire 223 in the tube wall of the return air hose 221 in this part, the heating wire 223 and the return air hose 221 are integrally formed, the condensation problem of the return air hose 221 can be solved, and at the same time, the heating wire 223 is embedded In the tube wall of the return air hose 221, the overall occupied space is small, and it is convenient to install. The closing of the return air hose 221 can protect the heating wire 223. At the same time, the heating wire 223 has high toughness and can also strengthen The toughness of the air return hose 221 increases the service life of the air return hose 221 .

Further, in one embodiment of the present invention, a heating wire 223 with the same length as the return air hose 221 is embedded in the wall of the return air hose 221, that is, a heating wire 223 is embedded in the wall of the entire return air hose 221. The heating wire 223 is more convenient to manufacture and has a better anti-condensation effect.

The heating wire 223 includes a plurality of resistance wires arranged at intervals along the side of the air return pipe 220 . The resistance wires have good toughness and are not easy to break, and can better improve the toughness of the air return hose 221 . A plurality of resistance wires are arranged at intervals along the circumference of the air return pipe 220, and the distance between any two adjacent resistance wires can be equal, which can make the return air pipe 220 heated more evenly and improve the anti-condensation effect.

Referring to Fig. 6 and Fig. 7 , another embodiment of the refrigerator 100 provided by the present invention is provided. In this embodiment, the compressor 230 and the condenser 240 of the refrigeration system 200 are installed in the compressor chamber on one side of the box body 110 . The door body capillary tube 250 and the door body evaporator 260 are all installed in the door body 120, so that the refrigerant flowing through the intake pipe 210 between the condenser 240 and the door body capillary tube 250 is normal temperature refrigerant during the cooling process, and the intake pipe 210 There will be no condensation problems.

In this embodiment, both the air inlet pipe 210 and the air return pipe 220 pass through the hinge shaft 132 on one side of the door body 120 , pass through the pipe opening 111 of the box body 110 , and penetrate into the heat insulation layer of the box body 110 . The air intake pipe 210 includes an air intake hose 211 extending at least from the hinge shaft 132 on one side of the door body 120 to one side of the box body 110 , and the air return pipe 220 includes a hose 211 extending at least from the hinge shaft 132 on one side of the door body 120 to one side of the box body 110 . The air return hose 221 , and at least the air return hose 221 between the hinge shaft 132 on one side of the door body 120 and the pipe opening 111 is placed in the intake hose 211 .

The refrigerant in the return air hose 221 between the hinge shaft 132 on one side of the door body 120 and the pipe port 111 is a low-temperature refrigerant. If the return air hose 221 is directly exposed to the external environment, condensation may occur in the return air hose 221. dew. Arranging the return air hose 221 inside the intake hose 211 can prevent the return air hose 221 from being directly exposed to the external environment, and the outside of the return air hose 221 is simultaneously wrapped by the intake hose 211 and the refrigerant at room temperature. The air return hose 221 does not condense, and the overall structure is compact, and does not take up extra space, and the mutual nesting of the air intake hose 211 and the return air hose 221 will not affect the switch of the door body 120 and the life of the pipeline.

Further, the air return pipe 220 includes an air return copper pipe 222 connected to the air return hose 221, the air intake pipe 210 includes an air intake copper pipe 212 connected to the air intake hose 211, and the air return hose 221 is integrally placed in the air intake soft tube. inside the pipe 211, so as to facilitate the connection and manufacture and also improve the anti-condensation effect.

The air return hose 221 and the air intake hose 211 can be integrally formed, and a support rib 224 can be arranged between the air return hose 221 and the air intake hose 211, so that the air return pipe 220 is fixed relative to the air intake pipe 210, and the air return pipe 220 and the air intake pipe 211 are fixed. The pipeline between the intake pipes 210 is relatively fixed, and the refrigerant from the compressor 230 can smoothly enter the capillary tube 250 of the door body through the channel between the intake pipe 210 and the return air pipe 220, without affecting the cooling effect. At the same time, the support ribs 224 can also enhance the stability of the overall structure and the strength of the pipeline, which is convenient for installation and manufacture.

Further, in one embodiment of the present invention, the refrigerator 100 further includes a flow distribution connector 300 , and the flow distribution connection member 300 connects the intake hose 211 , the intake copper pipe 212 , the return air hose 221 and the return air copper pipe 222 . The distribution connection part 300 may include a distribution connection part 300 disposed on one side of the box body 110 and a distribution connection part 300 disposed on one side of the door body 120 . During the refrigeration process, the refrigerant from the compressor 230 enters the interior of the intake hose 211 from the intake copper pipe 212 through the flow distribution connector 300 and then enters the intake copper pipe on the side of the door body 120 through the flow distribution connection member 300 to flow. After passing through the door body capillary 250 and the door body evaporator 260, it flows into the return air copper pipe on the side of the door body 120, and then enters the return air hose 221 through the shunt connector 300 on the side of the door body 120, and passes through the air return hose 221 on the side of the box body 110. After the branch connection piece 300 enters the return air copper pipe 222 on one side of the box body 110 and returns to the compressor 230 .

The distribution connector 300 includes a fluid cavity 310 , and an intake hose connection portion 320 and a gas return tube connection portion 330 passing through the fluid cavity 310 . The end of the intake hose 211 is connected to the intake hose connection part 320, the air return hose 221 passes through the fluid chamber 310 from the intake hose connection part 320 side and is connected to the return air pipe connection part 330, and the return air hose 221 and the side wall of the fluid cavity 310 form an air intake cavity communicated with the intake hose 211, the diversion connector 300 also includes an intake copper pipe connection part 330 passing through the fluid cavity 310, and the intake copper tube 212 is connected to Intake copper pipe connection part 340 .

In this embodiment, the fluid chamber 310 is cylindrical, and the inner diameter of the fluid chamber 310 is larger than the outer diameter of the air return pipe 221. The air hose connecting portion 320 and the air return pipe connecting portion 330 connected with the air return pipe 220 , and the opening on the side wall of the fluid chamber 310 forms an air intake copper pipe connection portion 340 for connecting the air intake copper pipe 212 . The air return copper pipe 222 can be directly connected to the air return hose 221 , or can be connected to the air return hose 221 through the air return pipe connecting portion 330 . Figure 6 is a schematic diagram of the connection of the distribution connector on one side of the box. The arrows in the figure represent the flow direction of the refrigerant. The air cavity directly flows between the intake hose 211 and the return air hose 221 , and the refrigerant in the return air hose 221 can directly flow into the return air copper pipe 222 connected thereto.

The air return pipe connection part 330 may include a connecting sleeve 331 placed on one side of the fluid chamber 310, the air return hose 221 passes through the fluid chamber 310 and is placed in the connecting sleeve 331, the air return hose 221 and the connecting pipe The sleeve 331 has an interference fit, and the return air copper pipe 222 can be placed in the return air hose 221 and has an interference fit with the return air hose 221 . Specifically, both the return air copper pipe 222 and the return air hose 221 can be placed in the connecting pipe sleeve 331, and the return air copper pipe 222 is placed in the return air hose 221, that is, the connecting pipe sleeve 331 is sequentially arranged from outside to inside. , the air return hose 221, the air return copper pipe 222, and the connection sleeve 331, the air return hose 221, and the air return copper pipe 222 are interference fit with each other by means of mechanical pressing.

The intake hose connection part 320 includes a threaded connection sleeve 321 , one end of the threaded connection sleeve 321 fits with the intake hose 211 , and the other end is screwed to the outer wall of the fluid cavity 310 . In this embodiment, the threaded connection sleeve 321 can cooperate with the intake hose 211 , and can also be connected by threads. The end of the intake hose 211 and the threaded connection sleeve 321 are both sleeved on the outer wall of the fluid chamber 310. The outer wall of the fluid chamber 310 is provided with external threads, and the threaded connection sleeve 321 is provided with internal threads. When installing, the threaded connection sleeve 321, the intake hose 211 can be connected to the branch connector 300. The intake copper pipe connection portion 340 can be an opening on the side wall of the fluid chamber 310 , and the intake copper pipe 212 can be directly bonded to the intake copper pipe connection portion 340 by metal glue.

Further, in an embodiment of the present invention, the flow distribution connector 300 on the side of the box body 110 is placed in the press chamber on the side of the box body 110 . In this embodiment, both the air intake hose 211 and the air return hose 221 pass through the hinge shaft 132 on one side of the door body 120 and then pass through the heat insulation layer of the box body 110 through the pipe opening 111 on the box body 110. In the compressor compartment on one side of the box body 110 , the intake hose 211 and the return air hose 221 are connected to the intake copper pipe 212 and the return air copper pipe 222 through the branch connector 300 in the press compartment.

In this embodiment, only one refrigerant pipe needs to be pierced through the box body 110 during the manufacturing process, which is simple to manufacture, and the air return pipe 220 is placed in the intake pipe 210 and directly penetrates through the pipe opening 111 on the box body 110 In the foam layer, the air return pipe 220 does not have any exposed outside parts, no condensation phenomenon occurs, and no additional structures are required.

In another embodiment of the present invention, the box body 110 is provided with a pipeline accommodation groove 112 and a heat insulation cover 113 for closing the pipeline accommodation groove 112. 212 and the return air copper pipe 222 pass through the heat insulation layer of the box body 110 from the compressor chamber, pass through the pipeline opening 111 into the pipeline accommodation groove 112 and connect with the distribution connector 300, the return air hose 221 and the intake hose 211 They all extend from the hinge shaft 132 on one side of the door body 120 to one side of the box body 110 and are connected to the branch connector 300 .

In this embodiment, the length of the return air hose 221 and the air intake hose 211 is reduced, which can reduce the cost, but condensation may occur at the branch connector 300, so the pipeline is provided on the box body 110 The accommodating groove 112 is sealed and closed with a heat-insulating cover 113 , and the distribution connector 300 is placed in the pipeline accommodating groove 112 to avoid condensation at the distribution connector 300 .

It should be understood that although the description is described according to the embodiments, not each embodiment only includes an independent technical solution, and this description of the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes made without departing from the technical spirit of the present invention All should be included within the protection scope of the present invention.

Claims

A refrigerator comprising:

box;

a door body, the door body is pivotally connected to the box body through a hinge;

A refrigeration system, which includes a compressor, a condenser, and a door evaporator connected in sequence, the compressor and the condenser are arranged on the side of the box, and the door evaporator is arranged in the door; The condenser is connected to the door body evaporator through an air intake pipe, and the door body evaporator is connected to the compressor through a return air pipe;

It is characterized in that a pipe opening is provided on the box body, and the air return pipe passes through the hinge shaft on one side of the door body and penetrates into the heat insulation layer of the box body through the pipe opening;

The refrigerator also includes a heat-insulating hinge cover, and the hinge cover covers at least the air return pipe disposed between the hinge shaft and the duct opening.
The refrigerator according to claim 1, wherein the refrigeration system further comprises capillary tubes, the capillary tubes are arranged on the side of the door body and between the condenser and the door body evaporator.
The refrigerator according to claim 1, wherein the air intake pipe passes through the hinge shaft on the side of the door body, passes through the pipe opening, and penetrates into the heat insulation layer of the box body, and the hinge cover plate is at least Covering the air intake pipe between the hinge shaft and the pipe opening.
The refrigerator according to claim 1, wherein the box body includes an outer shell and an inner container, the heat insulation layer is located between the outer shell and the inner container, and the inner container forms a storage compartment.
The refrigerator according to claim 3, wherein the air return pipe between the hinge shaft on the door body side and the pipe opening comprises an air return hose, and the air return pipe between the hinge shaft on the door body side and the pipe opening is The air intake pipe between them includes an air intake hose, and the return air hose is placed inside the air intake hose.
The refrigerator according to claim 1, wherein the air return pipe between the hinge shaft on the side of the door body and the pipe opening includes an air return hose, and a heating wire is embedded in the wall of the air return hose .
The refrigerator according to claim 1, wherein the hinge cover comprises a hinge housing and thermal insulation foam fixed inside the hinge housing.
The refrigerator according to claim 3, wherein the axis of the pipe opening is parallel to the axis of the hinge shaft, and the hinge cover covers the hinge shaft and the pipe opening.
The refrigerator according to claim 8, wherein a compressor compartment for installing the compressor is arranged on the side of the box, the air return pipe includes an air return hose and an air return copper pipe, and the return air The hose passes through the hinge shaft on the side of the door body, penetrates the heat insulation layer of the box body from the pipe opening, and then penetrates into the press chamber to connect with the return air copper pipe.
The refrigerator according to claim 9, wherein the air intake pipe includes an air intake hose and an air intake copper pipe, and the air intake hose enters from the hinge shaft on the side of the door through the pipe opening In the box heat insulation layer and through the box body heat insulation layer, enter the press chamber and connect with the intake copper pipe.
The refrigerator according to claim 3, wherein a compressor chamber for installing the compressor is arranged on the side of the box, the air return pipe includes an air return hose and an air return copper pipe, and the return air The copper pipe passes through the heat insulation layer of the box body from the press chamber and passes through the pipe opening, and the return air hose passes through the hinge shaft and extends to the side of the box body to connect with the return air copper pipe. connect.
The refrigerator according to claim 11, wherein the air intake pipe includes an air intake hose and an air intake copper pipe, and the air intake copper pipe passes through the heat insulation layer of the box body from the press chamber Pass through the pipe opening, and the air intake copper pipe passes through the hinge shaft to extend the side of the box body to connect with the air intake copper pipe. The heat insulation cover of the pipeline storage tank, the pipe opening is set in the pipeline storage tank, the interface between the air intake hose and the air intake copper pipe and the return air hose and the return air copper pipe The interface of the pipe is placed in the pipeline containing groove.
The refrigerator according to claim 12, wherein the heat insulating cover is integrally formed with the hinge cover, and the heat insulating cover is a part of the hinge cover.
The refrigerator according to claim 1, wherein the storage compartment formed in the box includes a refrigerating compartment and a freezing compartment, and the refrigerating door for opening and closing the refrigerating compartment is provided with an ice-making compartment, the door body evaporator is arranged in the ice-making compartment.
The refrigerator according to claim 1, wherein a guide groove for accommodating the air return pipe is arranged on the hinge cover plate.