refrigerator

Abstract

The present invention provides a refrigerator, comprising: a cabinet; a door body, the door body being pivotally connected to the cabinet by a hinge; a refrigeration system, comprising a compressor, a condenser, a door body capillary tube and a door body evaporator connected in sequence, the compressor and the condenser being arranged on the cabinet side, and the door body capillary tube and the door body evaporator being arranged on the door body side; the condenser is connected to the door body capillary tube by an air inlet pipe, and the door body evaporator is connected to the compressor by a return air pipe; a pipe opening is provided on the cabinet, the return air pipe and the air inlet pipe pass through the pipe opening from the hinge shaft on the door body side and penetrate into the heat insulation layer of the cabinet through the pipe opening; the return air pipe comprises a return air hose extending from at least one hinge shaft on one side of the door body to one side of the cabinet, the air inlet pipe comprises an air inlet hose extending from at least one hinge shaft on one side of the door body to one side of the cabinet, and at least the return air hose between the hinge shaft on one side of the door body and the pipe opening is placed in the air inlet hose.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, in particular to a refrigerator. Background Art

[0002] To meet users' demand for ice, some refrigerators have an ice-making compartment installed on the refrigerator door. This compartment houses an ice-making device and an independent ice-making evaporator that supplies cold air to the compartment. The compressor and condenser are often located in a compressor compartment on one side of the refrigerator. The ice-making evaporator and compressor are connected by a return air duct, which passes through the hinge of the refrigerator door and into the insulation layer of the refrigerator. However, due to the low temperature of the refrigerant in the return air duct and the exposed return air duct between the refrigerator door and the refrigerator body, condensation will occur. Conventional technology generally installs a foam insulation tube outside the return air duct to prevent condensation. However, the foam insulation tube is large and difficult to insert into the hinge, taking up a lot of space, affecting the appearance, and being easily damaged. Summary of the Invention

[0003] In order to solve the above problem, the present invention provides a refrigerator that can prevent condensation from occurring in an exposed air return duct between a refrigerator body and a door body.

[0004] To achieve one of the above-mentioned objectives, an embodiment of the present invention provides a refrigerator, comprising:

[0005] Box;

[0006] a door body, the door body being pivotally connected to the box body via a hinge;

[0007] A refrigeration system comprising a compressor, a condenser, a door capillary tube, and a door evaporator connected in sequence, wherein the compressor and the condenser are arranged on the side of the cabinet, and the door capillary tube and the door evaporator are arranged in the door; the condenser and the door capillary tube are connected via an air inlet pipe, and the door evaporator and the compressor are connected via an air return pipe;

[0008] The box body is provided with a pipe opening, and the return air pipe and the intake air pipe pass through the hinge shaft on the door body side, pass through the pipe opening and penetrate into the heat insulation layer of the box body;

[0009] The return air pipe includes an air return hose extending from at least one hinge shaft on one side of the door body to one side of the box body, and the intake air pipe includes an air intake hose extending from at least one hinge shaft on one side of the door body to one side of the box body.

[0010] The return air hose between the hinge shaft on at least one side of the door body and the pipe opening is placed in the air inlet hose.

[0011] As a further improvement of one embodiment of the present invention, the return air pipe also includes a return air copper pipe connected to the return air hose, and the intake pipe also includes an intake copper pipe connected to the intake hose, and the return air hose is placed as a whole in the intake hose.

[0012] As a further improvement of an embodiment of the present invention, the return air hose and the intake air hose are integrally formed, and a supporting rib is provided between the return air hose and the intake air hose.

[0013] As a further improvement of an embodiment of the present invention, the box body includes an outer shell and an inner liner, the heat insulation layer is located between the outer shell and the inner liner, and the inner liner forms a storage compartment.

[0014] As a further improvement of one embodiment of the present invention, the refrigerator also includes a diverter connector, which includes a fluid cavity, an air intake hose connection part passing through the fluid cavity, and a return air pipe connection part, the air intake hose is connected to the air intake hose connection part, the return air hose passes through the fluid cavity from one side of the air intake hose connection part and is connected to the return air pipe connection part, an air intake cavity connected to the air intake hose is formed between the return air hose and the side wall of the fluid cavity, the diverter connector also includes an air intake copper pipe connection part passing through the fluid cavity, and the air intake copper pipe is connected to the air intake copper pipe connection part.

[0015] As a further improvement of one embodiment of the present invention, a compressor compartment for placing the compressor and the condenser is provided on one side of the box body, and the diversion connector is placed in the compressor compartment. The air intake hose and the air return hose are passed from the hinge shaft on one side of the door body through the pipe port through the insulation layer of the box body into the compressor compartment and are connected to the diversion connector.

[0016] As a further improvement of one embodiment of the present invention, a compressor compartment for placing the compressor and the condenser is provided on one side of the box body, a pipeline receiving groove and an insulating cover plate for closing the pipeline receiving groove are provided on the box body, the diversion connector is placed in the pipeline receiving groove, and the air intake copper pipe and the air return copper pipe both pass through the insulation layer of the box body from the compressor compartment and enter the pipeline receiving groove from the pipe opening to be connected with the diversion connector.

[0017] In order to achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a refrigerator, wherein the return air pipe connection portion includes a connecting pipe sleeve placed on one side of the fluid cavity, the return air hose passes through the fluid cavity and is placed in the connecting pipe sleeve and has an interference fit with the connecting pipe sleeve, and the end of the return air copper pipe is placed in the return air hose and has an interference fit with the return air hose.

[0018] As a further improvement of one embodiment of the present invention, the air intake hose connection portion includes a threaded connection sleeve, one end of the threaded connection sleeve cooperates with the air intake hose, and the other end is connected to the outer wall of the fluid cavity through a thread.

[0019] As a further improvement of one embodiment of the present invention, the storage compartment formed in the box includes a refrigeration compartment and a freezer compartment, an ice-making compartment is provided on the refrigeration door for opening and closing the refrigeration compartment, and the door evaporator is provided in the ice-making compartment.

[0020] The refrigerator provided by the present invention arranges the return air hose between the door body and the box body inside the air intake hose, and at the same time arranges the door body capillary tube inside the door body so that the air intake hose and the normal temperature refrigerant in the air intake hose cover the return air hose, thereby avoiding the return air hose from being exposed to the external environment and preventing condensation from occurring in the return air hose. The overall structure is compact and occupies little space, making it easy to install and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional view of a refrigerator according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the explosion of the refrigerator shown;

[0023] Figure 3 for Figure 1 Schematic diagram of the refrigeration system of the refrigerator shown;

[0024] Figure 4 This is a schematic diagram of a refrigerator explosion according to another embodiment of the present invention;

[0025] Figure 5 A cross-sectional view of an air return hose according to another embodiment of the present invention;

[0026] Figure 6 A partial schematic diagram of yet another embodiment of the present invention;

[0027] Figure 7 for Figure 6 Schematic cross-section of the intake and return hoses shown. Specific embodiments

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0030] See also Figure 1 、 Figure 2 Refrigerator 100 according to one embodiment of the present invention includes a housing 110 and a door 120 for opening and closing housing 110. Door 120 is pivotally connected to housing 110 via a hinge 130. Hinge 130 includes a hinge plate fixedly connected to housing 110 and a hinge shaft 132 pivotally connected to door 120. Door 110 is provided with a door shaft, which is connected to the door shaft, allowing the door to rotate relative to the housing. Both housing 110 and door 120 may be provided with an insulation layer to prevent the loss of cold air within refrigerator 100. Specifically, housing 110 may include an outer shell and an inner shell, with an insulation layer disposed between the outer shell and the inner shell. Door 120 may include a door shell and a door lining, with an insulation layer disposed between the door shell and the door lining. The insulation layer may be a foam material. The inner shell of housing 110 forms a storage compartment, which may include a refrigeration compartment and a freezer compartment.

[0031] The door body 120 of the refrigerating compartment may be provided with an ice-making compartment and a small ice-making door for opening and closing the ice-making compartment. The small ice-making door is filled with heat-insulating material to isolate the ice-making compartment from the refrigerating compartment. An ice-making device and an ice storage device may be installed in the ice-making compartment.

[0032] The refrigerator 100 further includes a refrigeration system 200, see Figure 2 、 Figure 3 The refrigeration system 200 may include a compressor 230, a condenser 240, a door capillary tube 250, and a door evaporator 260 connected in sequence. The compressor 230 and the condenser 240 may be installed on one side of the housing 110. For example, a press chamber may be provided on one side of the housing 110, and the press chamber may be placed at the bottom of the housing 110. The compressor 230 and the condenser 240 may be installed in the press chamber.

[0033] In this embodiment, the door evaporator 260 can be installed within the door 120. Specifically, the door evaporator 260 can be installed inside the ice-making compartment to supply cold air to the ice-making compartment. A cabinet evaporator 280 and a cabinet capillary tube 270 are also provided on one side of the cabinet 110. The cabinet evaporator 280 can be used to supply cold air to the refrigerator and freezer compartments. The cabinet evaporator 280 and the door evaporator 260 can share a compressor 230 and a condenser 240. Specifically, the compressor 230 is connected to the condenser 240 via a refrigerant pipe. The condenser 240 is connected to a one-inlet, two-outlet solenoid valve 290, which supplies refrigerant to the door evaporator 260 and the cabinet evaporator 280, respectively. The refrigerant flowing through the door evaporator 260 and the cabinet evaporator 280 returns to the compressor 230 in the compressor compartment.

[0034] In this embodiment, the condenser 240 and the door evaporator 260 can be connected via the air inlet pipe 210, and the door evaporator 260 and the compressor 230 can be connected via the air return pipe 220. The air inlet pipe 210 can pass through the insulation layer of the housing 110 from the compressor compartment, then pass through the insulation layer of the door 120 to connect to the door evaporator 260. One end of the air return pipe 220 is connected to the door evaporator 260, passes through the insulation layer of the door 120, then passes through the insulation layer of the housing 110, and finally passes through the compressor compartment to connect to the compressor 230.

[0035] In one embodiment of the present invention, a duct opening 111 is provided on the housing 110. The duct opening 111 can be located at the top of the housing 110. The return air duct 220 passes through the insulation layer of the door 120, through the door hinge 132 on one side of the door 120, and then through the duct opening 111 on the housing 110 into the insulation layer of the housing 110. The refrigerator 100 also includes an insulating hinge cover 131, which covers at least the exposed portion of the return air duct 220 between the hinge 132 and the duct opening 111. The hinge cover 131 can be directly mounted on the housing 110 using fasteners such as screws. Because the hinge cover 131 is insulating and covers the portion of the return air duct 220 exposed outside the housing 110 and door 120, the return air duct 220 is not directly exposed to the outside world. Therefore, condensation does not form on the outside of the return air duct 220 due to its low temperature. The hinged cover 131 covers the air return pipe 220 , which is overall beautiful, compact in structure, and easy to install and manufacture.

[0036] In this embodiment, the hinge cover 131 includes a hinge shell and thermal insulation foam fixed to the inner side of the hinge shell. The thermal insulation foam can be snap-fitted and fixed to the inner side of the hinge shell. During the installation and manufacturing process, the hinge cover 131 can be directly installed after the refrigeration system 200 is installed, and the installation process is simple.

[0037] The housing 110 may also be provided with a pipeline guide box 140. Specifically, the pipeline guide box 140 may be provided at the edge of the top opening of the housing 110. The pipeline guide box 140 includes a pipeline guide groove 141 provided near the hinge 130. The air inlet pipe 210 and the air return pipe 220 may pass through the pipeline 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 pipelines while also limiting the position of the hinge cover 131.

[0038] Furthermore, the hinge cover 131 may be provided with a guide groove for accommodating the return air duct 220. Specifically, the guide groove may be provided on the thermal insulation foam. When the hinge cover 131 is installed on the door body 120, the return air duct 220 passes through the hinge shaft 132 on one side of the door body 120, passes through the guide groove of the hinge cover 131, and then passes through the pipe opening 111 on the box body 110 into the insulation layer of the box body 110. The guide groove can position the return air duct 220, making the return air duct 220 more tightly covered, thereby improving the anti-condensation effect.

[0039] Furthermore, in one embodiment of the present invention, the door capillary tube 250 may be disposed within the door 120. Specifically, the door capillary tube 250 may be disposed within the insulation layer of the door 120. The condenser 240 and the door capillary tube 250 are connected via a first air inlet pipe, and the door capillary tube 250 and the door evaporator 260 are connected via a second air inlet pipe. The first air inlet pipe passes through the insulation layer of the housing 110, then passes through the hinge shaft 132 on one side of the door 120, into the door shaft of the door 120, and then into the insulation layer of the door 120 to connect with the door capillary tube 250. The door capillary tube 250 may also partially extend into the door shaft of the door 120. The first air inlet pipe passes through the hinge shaft 132 on one side of the door 120, enters the door shaft, and connects with the door capillary tube 250. The door capillary tube 250 and the return air pipe 220 at least partially form a tube bundle, thereby ensuring effective heat exchange.

[0040] The portion of the first air inlet pipe located 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 inside the door body 120, the refrigerant flowing through the first air inlet pipe is a room temperature refrigerant, and the first air inlet pipe will not produce condensation problems.

[0041] Furthermore, the air inlet pipe 210 can pass through the pipe opening 111 on the housing 110, then pass through the door shaft 132 on the side of the door 120, and then pass through the heat insulation layer of the door 120. The heat-insulating hinge cover 131 can cover the air inlet pipe 210 between the hinge shaft 132 and the pipe opening 111. In this way, even if the door capillary tube 250 is located on the side of the housing 110, the air inlet pipe 210 will not cause condensation.

[0042] The return air pipe 220 may include a return air hose 221 and a return air copper pipe 222 connected to the return air 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 return air hose 221 extend from at least the hinge shaft 132 on one side of the door body 120 to one side of the box body 110, so as not to hinder the opening and closing of the door body 120. The hose has greater toughness and is not easily damaged by the rotation of the door body 120. The air intake copper pipe 212 and the return air copper pipe 222 can ensure a better heat exchange effect.

[0043] Specifically, the air intake pipe 210 may include an air intake copper pipe positioned on one side of the door 120 and an air intake copper pipe 212 positioned on one side of the housing 110. The air intake copper pipe on the door 120 side may be embedded within the thermal insulation layer of the door 120. The ends of an air intake hose 211 may be connected to the air intake copper pipe on the door 120 side and the air intake copper pipe 212 on the housing 110 side, respectively. The air intake hose 211 may be passed from the hinge axis on the door 120 side into the door hinge of the door 120, where it connects to the air intake copper pipe on the door 120 side. Alternatively, the air intake copper pipe 211 may be directly extended into the thermal insulation layer of the door 120, where it connects to the air intake copper pipe on the door 120 side. The air intake copper pipe 212 on the housing 110 side may be connected to the condenser 240 in the compressor compartment, and the air intake copper pipe on the door 120 side may be connected to the door capillary tube 250.

[0044] The return air copper pipe 222 also includes a return air copper pipe 222 disposed on one side of the housing 110 and a return air copper pipe disposed on one side of the door body 120. The return air copper pipe 222 on the housing 110 side is connected to the refrigerant inlet of the compressor 230, and the return air copper pipe on the door body 120 side is connected to the refrigerant outlet of the door evaporator 260. The two ends of the return air hose 221 can be respectively connected to the air inlet copper pipe 212 on the housing 110 side and the air inlet copper pipe on the door body 120. The return air hose 221 can pass through the door shaft of the door body 120 from the hinge shaft on the door body 120 side and connect to the return air copper pipe on the door body 120 side within the door shaft. The return air hose 221 can also enter the thermal insulation layer of the door body 120 after passing through the door shaft and connect to the return air copper pipe on the door body 120 within the thermal insulation layer of the door body 120.

[0045] Furthermore, in one embodiment of the present invention, the axis of the duct 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 duct opening 111 .

[0046] In this embodiment, the return air pipe 220 and the intake pipe 210 can simultaneously pass through the hinge shaft 132 of the door body 120 and then pass through the interior of the box body 110 from the pipe opening 111. The axis of the pipe opening 111 is parallel to the hinge shaft 132, which can reduce damage to the return air pipe 220 and the intake pipe 210 during the rotation of the door body 120.

[0047] Both the air intake hose 211 and the air return hose 221 extend from the hinge shaft 132 on one side of the door 120, then pass through the pipe opening 111 into the insulation layer of the cabinet 110 and into the compressor compartment, where they are connected to the air intake copper pipe 212 and the air return copper pipe 222, respectively. The refrigerator 100 may also be provided with a water supply device that supplies water to the ice-making device in the ice-making compartment. The water pipe of the water supply device may also extend from the insulation layer of the door 120, through the hinge shaft 132 on one side of the door 120, and then enter the insulation layer of the cabinet 110 through the pipe opening 111. The water pipe, the return hose 221, and the air intake hose 211 may form a pipe bundle for easy installation and manufacturing. Moreover, the interface between the return air hose 221 and the return air 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 arranged in the press chamber. There is no need to set up additional connection space on the box body 110. The hinge cover 131 directly covers the area between the hinge shaft 132 and the pipe opening 111 on one side of the door body 120 to achieve condensation prevention of the return air pipe 220, and the overall structure is compact.

[0048] See also Figure 4 In another embodiment of the present invention, the housing 110 is provided with a pipe receiving groove 112 and an insulating cover 113 that seals the pipe receiving groove 112. The pipe opening 111 can be disposed within the pipe receiving groove 112. The air intake copper pipe 212 and the air return copper pipe 222 both pass through the compressor compartment into the insulation layer of the housing 110 and exit through the pipe opening 111 on the housing 110, where they are connected to the air intake hose 211 and the air return hose 221, respectively. The interface between the air intake hose 211 and the air intake copper pipe 212, as well as the interface between the air return hose 221 and the air return copper pipe 222, are both disposed within the pipe receiving groove 112.

[0049] In this embodiment, the top of the box body 110 is concave to form a pipe receiving groove 112, and the pipe opening 111 is set on the side wall of the pipe receiving groove 112. The heat insulation cover 113 and the hinge cover plate 131 can be separated. The return air hose 221 passes through the hinge cover plate 131 from the hinge shaft 132 of the door body 120, and then passes through the hinge cover plate 131 to enter the heat insulation cover 113. The heat insulation cover 113 and the hinge cover plate 131 jointly cover the return air pipe 220 between the hinge shaft 132 on one side of the door body 120 and the pipe opening 111. The heat insulation cover 113 is part of the hinge cover plate 131, and the heat insulation cover 113 can also be integrally formed with the hinge cover plate 131, which makes installation and manufacturing more convenient.

[0050] In this way, since the price of the hose is higher than that of the copper tube, such a setting can reduce the length of the hose, reduce the production cost, and facilitate installation and manufacturing.

[0051] See also Figure 5In another embodiment of the present invention, a heating wire 223 is embedded in the wall of a return air hose 221 between at least the hinge shaft 132 on one side of the door 120 and the duct opening 111 of the housing 110. The return air hose 221 extends from at least the hinge shaft 132 on the door 120 side to the side of the housing 110 to prevent the return air hose 220 from obstructing the opening and closing of the door 120, thereby extending the service life of the return air hose 220.

[0052] The heating wire 223 can pass through the end face of one end of the return air hose 221 and be connected to the wiring harness. The wiring harness can pass through the inner side of the cabinet 110 or the door 120 of the refrigerator 100 and be connected to the control panel of the refrigerator 100. The control panel can control the opening and closing of the heating wire 223. For example, the heating wire 223 can be turned on only when the compressor 230 is working to supply refrigerant to the door evaporator 260.

[0053] The portion 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 cabinet 110 is exposed to the outside environment. Since the refrigerant flowing through the return air hose 221 is a low-temperature refrigerant, condensation is easily generated on the outside of the return air hose 221. However, by embedding a heating wire 223 in the tube wall of the return air hose 221 in this portion, the heating wire 223 and the return air hose 221 are integrally formed, thereby resolving the condensation problem of the return air hose 221. Furthermore, the heating wire 223 is embedded in the tube wall of the return air hose 221, which occupies a small space and is easy to install. Closing the return air hose 221 protects the heating wire 223. Furthermore, the high toughness of the heating wire 223 also enhances the toughness of the return air hose 221, thereby increasing the life of the return air hose 221.

[0054] Furthermore, in one embodiment of the present invention, a heating wire 223 of the same length as the return air hose 221 is embedded in the tube wall of the return air hose 221, that is, a heating wire 223 is embedded in the tube wall of the entire return air hose 221, thereby making manufacturing more convenient and having a better anti-condensation effect.

[0055] The heating wires 223 comprise multiple resistance wires spaced along the circumference of the return air duct 220. These resistance wires are highly resilient and resistant to breakage, further enhancing the toughness of the return air hose 221. The multiple resistance wires are spaced along the circumference of the return air duct 220, with any two adjacent resistance wires spaced evenly apart. This ensures more uniform heating of the return air duct 220 and enhances the anti-condensation effect.

[0056] See also Figure 6 、 Figure 7, which is another embodiment of the refrigerator 100 provided by the present invention. In this embodiment, the compressor 230 and the condenser 240 of the refrigeration system 200 are installed in the compressor compartment on one side of the cabinet 110, and the door capillary tube 250 and the door evaporator 260 are both installed in the door body 120. In this way, the refrigerant flowing through the air inlet pipe 210 between the condenser 240 and the door capillary tube 250 during the refrigeration process is a room temperature refrigerant, and there will be no condensation problem in the air inlet pipe 210.

[0057] In this embodiment, both the air intake duct 210 and the air return duct 220 extend from the hinge shaft 132 on one side of the door body 120, pass through the duct opening 111 of the housing 110, and penetrate into the thermal insulation layer of the housing 110. The air intake duct 210 includes an air intake hose 211 extending at least from the hinge shaft 132 on one side of the door body 120 to the side of the housing 110. The air return duct 220 includes a air return hose 221 extending at least from the hinge shaft 132 on one side of the door body 120 to the side of the housing 110. At least the portion of the air return hose 221 between the hinge shaft 132 on one side of the door body 120 and the duct opening 111 is disposed within the air intake hose 211.

[0058] The refrigerant in the return air hose 221 between the hinge shaft 132 and the pipe opening 111 on one side of the door body 120 is a low-temperature refrigerant. If the return air hose 221 is directly exposed to the external environment, condensation may occur on the return air hose 221. Placing 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. The outer side of the return air hose 221 is simultaneously surrounded by the intake hose 211 and the refrigerant at room temperature, so condensation will not occur on the return air hose 221. The overall structure is compact and does not take up additional space. The nesting of the intake hose 211 and the return air hose 221 will not affect the opening and closing of the door body 120 or the life of the pipeline.

[0059] Furthermore, the return air pipe 220 includes a return air copper pipe 222 connected to the return air hose 221, and the intake pipe 210 includes an intake copper pipe 212 connected to the intake hose 211. The return air hose 221 is placed as a whole inside the intake hose 211, which facilitates connection and manufacturing and can also improve the anti-condensation effect.

[0060] The return air hose 221 and the intake air hose 211 can be formed as one piece, and a support rib 224 can be provided between the return air hose 221 and the intake air hose 211, so that the return air pipe 220 is fixed relative to the intake pipe 210, and the pipeline between the return air pipe 220 and the intake pipe 210 is relatively fixed. The refrigerant from the compressor 230 can smoothly pass through the channel between the intake pipe 210 and the return air pipe 220 into the door body capillary 250 without affecting the cooling effect. At the same time, the support rib 224 can also enhance the stability of the overall structure and the strength of the pipeline, making installation and manufacturing convenient.

[0061] Furthermore, in one embodiment of the present invention, the refrigerator 100 further includes a flow divider connector 300, which connects the air inlet hose 211, the air inlet copper pipe 212, the air return hose 221, and the air return copper pipe 222. The flow divider connector 300 may include a flow divider connector 300 disposed on one side of the housing 110 and a flow divider connector 300 disposed on one side of the door 120. During the refrigeration process, the refrigerant from the compressor 230 enters the air intake hose 211 from the air intake copper tube 212 through the bypass connector 300, and then enters the air intake copper tube on the side of the door body 120 through the bypass connector 300. After flowing through the door body capillary 250 and the door body evaporator 260, it flows into the return air copper tube on the side of the door body 120, and then passes through the bypass connector 300 on the side of the door body 120 to enter the return air hose 221, passes through the bypass connector 300 on the side of the box body 110, and then enters the return air copper tube 222 on the side of the box body 110 and returns to the compressor 230.

[0062] The flow splitter connector 300 includes a fluid cavity 310, and an intake hose connection portion 320 and a return hose connection portion 330 extending through the fluid cavity 310. The end of the intake hose 211 is connected to the intake hose connection portion 320. The return hose 221 passes through the fluid cavity 310 from one side of the intake hose connection portion 320 and connects to the return hose connection portion 330. The return hose 221 and the sidewall of the fluid cavity 310 form an intake cavity that communicates with the intake hose 211. The flow splitter connector 300 also includes an intake copper pipe connection portion 330 extending through the fluid cavity 310. The intake copper pipe 212 is connected to the intake copper pipe connection portion 340.

[0063] In this embodiment, the fluid chamber 310 is cylindrical, and its inner diameter is larger than the outer diameter of the return air hose 221. Both ends of the fluid chamber 310 are open, respectively provided with an intake hose connection portion 320 for connecting to the intake hose 211 and a return air hose connection portion 330 for connecting to the return air hose 220. The sidewall of the fluid chamber 310 is opened to form an intake copper pipe connection portion 340 for connecting to the intake copper pipe 212. The return air copper pipe 222 can be connected to the return air hose 221 directly or via the return air hose connection portion 330. Figure 6 This is a connection diagram of the diversion connector on one side of the box body. The arrows in the figure represent the flow direction of the refrigerant. During the refrigeration process, the refrigerant flows from the air inlet copper tube 212 into the air inlet cavity between the return air hose 221 and the fluid cavity 310, and then directly flows into the air inlet hose 211 and the return air hose 221. The refrigerant in the return air hose 221 can directly flow into the return air copper tube 222 connected to it.

[0064] The return air pipe connection portion 330 may include a connecting sleeve 331 placed on one side of the fluid cavity 310. The return air hose 221 passes through the fluid cavity 310 and is placed in the connecting sleeve 331. The return air hose 221 and the connecting sleeve 331 have an interference fit. The return air copper tube 222 may be placed in the return air hose 221 and have an interference fit. Specifically, both the return air copper tube 222 and the return air hose 221 may be placed in the connecting sleeve 331, and the return air copper tube 222 is placed in the return air hose 221. That is, from the outside to the inside, they are the connecting sleeve 331, the return air hose 221, and the return air copper tube 222. The connecting sleeve 331, the return air hose 221, and the return air copper tube 222 are interference fit with each other through mechanical pressing.

[0065] The intake hose connection portion 320 includes a threaded sleeve 321. One end of the threaded sleeve 321 engages with the intake hose 211, and the other end is threadedly connected to the outer wall of the fluid chamber 310. In this embodiment, the threaded sleeve 321 and the intake hose 211 can either engage or be threadedly connected. The end of the intake hose 211 and the threaded sleeve 321 are both mounted 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 sleeve 321 is provided with internal threads. During installation, the threaded sleeve 321 connects the intake hose 211 to the diverter connector 300. The intake copper tube connection portion 340 can be an opening formed in the side wall of the fluid chamber 310. The intake copper tube 212 can be directly bonded to the intake copper tube connection portion 340 using metal glue.

[0066] Furthermore, in one embodiment of the present invention, the diverter connector 300 on one side of the box body 110 is placed in the press chamber on one side of the box body 110. In this embodiment, the air intake hose 211 and the air return hose 221 both pass through the hinge shaft 132 on one side of the door body 120, pass through the pipe opening 111 on the box body 110, and pass through the insulation layer of the box body 110 to enter the press chamber on one side of the box body 110. The air intake hose 211 and the air return hose 221 are connected to the air intake copper pipe 212 and the air return copper pipe 222 in the press chamber through the diverter connector 300.

[0067] In this embodiment, during the manufacturing process, only one refrigerant pipe needs to be passed through the box body 110, which makes the manufacturing simple, and the return air pipe 220 is placed in the air inlet pipe 210 and directly passes through the foam layer from the pipe opening 111 on the box body 110. There is no part of the return air pipe 220 exposed to the outside, and condensation will not occur, and no additional structures are required.

[0068] In another embodiment of the present invention, a pipe receiving groove 112 and an insulating cover 113 for closing the pipe receiving groove 112 are provided on the box body 110, and the diversion connector 300 is placed in the pipe receiving groove 112. The air intake copper pipe 212 and the air return copper pipe 222 both pass through the insulation layer of the box body 110 from the compressor compartment and enter the pipe receiving groove 112 from the pipe opening 111 to be connected to the diversion connector 300. The return air hose 221 and the air intake hose 211 both 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 diversion connector 300.

[0069] In this embodiment, the lengths of the return air hose 221 and the intake air hose 211 are reduced, which can reduce costs. However, condensation may occur at the diverter connector 300. Therefore, a pipe receiving groove 112 is provided on the box body 110 and the pipe receiving groove 112 is sealed with an insulating cover 113. The diverter connector 300 is placed in the pipe receiving groove 112 to avoid condensation at the diverter connector 300.

[0070] It should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0071] 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. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator, comprising: Box; A door body, the door body being pivotally connected to the box body via a hinge; A refrigeration system, comprising a compressor, a condenser, a door capillary tube and a door evaporator connected in sequence, wherein the compressor and the condenser are arranged on one side of the box, and the door capillary tube and the door evaporator are arranged on one side of the door; the condenser is connected to the door capillary tube through an air inlet pipe, and the door evaporator is connected to the compressor through an air return pipe; It is characterized in that a pipe opening is provided on the box body, and the return air pipe and the air inlet pipe pass through the hinge shaft on one side of the door body, pass through the pipe opening and penetrate into the heat insulation layer of the box body; The return air pipe includes a return air hose extending from at least one hinge shaft on one side of the door body to one side of the box body, and the intake air pipe includes an intake air hose extending from at least one hinge shaft on one side of the door body to one side of the box body, and at least the return air hose between the hinge shaft on one side of the door body and the pipe opening is placed in the intake air hose; The air return pipe also includes an air return copper pipe connected to the air return hose, and the air intake pipe also includes an air intake copper pipe connected to the air intake hose. The air return hose is entirely placed in the air intake hose.

2. The refrigerator according to claim 1, characterized in that: The air return hose and the air intake hose are integrally formed, and a supporting rib is arranged between the air return hose and the air intake hose.

3. The refrigerator according to claim 1, characterized in that: The box body comprises an outer shell and an inner liner, the heat insulation layer is located between the outer shell and the inner liner, and the inner liner forms a storage compartment.

4. The refrigerator according to claim 1, characterized in that: The refrigerator also includes a diverter connector, which includes a fluid cavity, an air intake hose connector and a return air pipe connector that pass through the fluid cavity, the air intake hose is connected to the air intake hose connector, the return air hose passes through the fluid cavity from one side of the air intake hose connector and is connected to the return air pipe connector, an air intake cavity connected to the air intake hose is formed between the return air hose and the side wall of the fluid cavity, the diverter connector also includes an air intake copper pipe connector that passes through the fluid cavity, and the air intake copper pipe is connected to the air intake copper pipe connector.

5. The refrigerator according to claim 4, characterized in that: A press chamber for placing the compressor and the condenser is provided on one side of the box body, and the bypass connector is placed in the press chamber. The air intake hose and the air return hose are passed from the hinge shaft on one side of the door body through the pipe opening through the insulation layer of the box body into the press chamber and connected to the bypass connector.

6. The refrigerator according to claim 4, characterized in that: A compressor chamber for accommodating the compressor and the condenser is provided on one side of the box body, a pipeline receiving groove and an insulating cover for closing the pipeline receiving groove are provided on the box body, the shunt connector is placed in the pipeline receiving groove, the air intake copper pipe and the air return copper pipe are both passed from the compressor chamber through the insulation layer of the box body, and penetrated from the pipe opening into the pipeline receiving groove to be connected with the shunt connector.

7. The refrigerator according to claim 4, characterized in that: The return air pipe connection portion includes a connecting pipe sleeve placed on one side of the fluid cavity, the return air hose passes through the fluid cavity and is placed in the connecting pipe sleeve and has an interference fit with the connecting pipe sleeve, and the end of the return air copper pipe is placed in the return air hose and has an interference fit with the return air hose.

8. The refrigerator according to claim 7, characterized in that: The air intake hose connection portion comprises a threaded connection sleeve, one end of which cooperates with the air intake hose, and the other end of which is connected to the outer wall of the fluid cavity through threads.

9. The refrigerator according to claim 1, characterized in that: The storage compartment formed in the box body includes a refrigerating compartment and a freezing compartment. An ice-making compartment is arranged on a refrigerating door body used for opening and closing the refrigerating compartment. The door body evaporator is arranged in the ice-making compartment.

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