Door body assembly, refrigerator and manufacturing method for door body assembly of refrigerator

Abstract

The invention provides a door body assembly, a refrigerator and a manufacturing method for the door body assembly of the refrigerator. The door body assembly comprises a door shell, a door lining, a heat preservation space, a heat preservation material, a vertical beam arranged on the side wall of the door lining, a heating piece arranged in the vertical beam and a junction box, and the junction box is bonded to the side wall of the vertical beam of the door lining or fixedly connected to the side wall of the vertical beam of the door lining through a fastening structure. The junction box is provided with a first wiring opening formed in the heat preservation space and a second wiring opening formed in the vertical beam side, the side wall of the vertical beam side of the door lining is provided with a third wiring opening corresponding to the second wiring opening, the door body assembly further comprises a wire, and the wire is partially arranged in the junction box. One end of the wire penetrates into the heat preservation space from the junction box through the first wiring port and is connected to the power supply terminal, and the other end of the wire is connected to the heating piece from the junction box through the second wiring port and the third wiring port. According to the arrangement, assembling and manufacturing of the door body assembly can be facilitated.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and in particular to a door assembly, a refrigerator, and a method for manufacturing the door assembly for a refrigerator. Background Art

[0002] In the prior art, there is a refrigerator that uses a double-door opening to open and close the opening of the refrigerator compartment. In order to prevent the refrigerator compartment from leaking cold due to a gap between the two doors when the refrigerator compartment is in a closed state, a rotatable vertical beam can generally be set on one of the door bodies of the double-door. When the door body is closed, the vertical beam rotates to be parallel to the opening of the refrigerator compartment to cover the gap between the two doors; when the door body is opened, the vertical beam rotates and is stored on the door body to avoid occupying space or interfering with other structures. Since the vertical beam is directly in contact with the cold air in the refrigerator compartment, the surface temperature of the vertical beam is relatively low due to the influence of the cold air in the refrigerator compartment. When the vertical beam is in contact with the external environment, if the temperature difference between the surface temperature of the vertical beam and the external environment is large, condensation may occur on the surface of the vertical beam. In order to reduce the temperature difference between the surface of the vertical beam and the external environment, a heating element needs to be set in the vertical beam to heat the vertical beam. However, this design has the following defects: a wire needs to be set between the heating element of the vertical beam and the door body on which the vertical beam is installed, which makes the door body manufacturing complicated. Summary of the invention

[0003] The object of the present invention is to provide a door body assembly, a refrigerator and a manufacturing method of a door body assembly for a refrigerator, which can facilitate the assembly and manufacturing of the door body by gluing or fixing the junction box to the side wall of the door lining vertical beam through a fastening structure.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a door assembly, comprising a door shell and a door lining arranged opposite to each other, a heat preservation space formed between the door shell and the door lining, a heat preservation material filling the heat preservation space, a vertical beam pivotally arranged on a side wall of the door lining, and a heating element arranged in the vertical beam, wherein:

[0005] The door assembly further includes a junction box, the junction box is at least partially placed in the heat preservation space, the junction box is bonded or fixedly connected to the side wall of the door lining vertical beam by a fastening structure, the junction box has a first wiring opening placed in the heat preservation space and a second wiring opening placed on the side of the vertical beam, and the side wall of the door lining vertical beam is provided with a third wiring opening corresponding to the second wiring opening.

[0006] The door body assembly also includes a wire, part of which is placed in the junction box, one end of the wire passes through the first wiring port from the junction box into the insulation space and is connected to the power supply terminal, and the other end of the wire passes through the second wiring port and the third wiring port from the junction box to be connected to the heating element.

[0007] As a further improvement of one embodiment of the present invention, the door body assembly also includes a distributor chamber, which is arranged in the door shell and opens outward, the power supply terminal is arranged in the distributor chamber, and a fourth wiring opening is arranged on the side wall of the distributor chamber. The wire extends from the insulation space through the fourth wiring opening into the distributor chamber and is connected to the power supply terminal.

[0008] As a further improvement of one embodiment of the present invention, the distributor chamber is formed by the door shell being recessed toward the door lining, the fourth wiring opening is arranged on the rear wall of the distributor chamber, the edge of the fourth wiring opening is provided with a first annular flange protruding toward the door lining, the door lining is provided with a second annular flange matching with the first annular flange, the second annular flange is at least partially arranged in the first annular flange, the first annular flange is provided with a first notch, the second annular flange is provided with a second notch corresponding to the first notch, and the wire penetrates into the fourth wiring opening from the insulation space through the first notch and the second notch.

[0009] As a further improvement of one embodiment of the present invention, the door lining is provided with an annular seal on the outer periphery of the second annular flange, the end of the first annular flange is connected to the annular seal, a sealing block is provided at the first wiring opening, and the wire passes through the first wiring opening via the sealing block.

[0010] As a further improvement of an embodiment of the present invention, the side wall of the door lining vertical beam is recessed toward the insulation space to form an installation portion, the installation portion has a installation wall, the installation wall is provided with the third wiring opening, the junction box includes a box body and a connecting edge extending outward from the peripheral wall of the box body, the box body and the connecting edge are both placed on the insulation space side of the door lining, the box body forms the first wiring opening and the second wiring opening, the connecting edge covers at least a portion of the installation wall, the junction box also includes a limiting flange protruding from the second wiring opening to the third wiring opening, the limiting flange is at least partially sleeved in the third wiring opening.

[0011] As a further improvement of one embodiment of the present invention, the door body assembly includes a pivot member for pivotally mounting the vertical beam to the door lining, the pivot member includes a fixing plate fixedly arranged on the outside of the mounting wall, the fixing plate covers the third wiring opening, a threaded connecting portion is arranged in the box body, the threaded connecting portion forms a blind hole open toward the third wiring opening, the fixing plate is provided with a through hole matching the blind hole, the fixing plate is fixedly connected to the box body by a threaded connecting member through the through hole and the blind hole, the pivot member also includes a pivot shaft rotatably arranged in the vertical beam, a connecting block connecting the pivot shaft and the fixing plate, a wiring channel connecting the third wiring opening and the space inside the vertical beam is formed inside the fixing plate, the connecting block and the pivot shaft, and the wire is connected to the heating element through the wiring channel.

[0012] As a further improvement of one embodiment of the present invention, the door body assembly also includes an ice-making chamber, which is arranged on the door shell and opens outward, and the dispenser chamber is arranged below the ice-making chamber. The door body assembly also includes an ice-making chamber door for opening and closing the opening of the ice-making chamber, and an outer door arranged on the outside of the ice-making chamber door, and the outer door covers the ice-making chamber and the dispenser chamber at the same time. A partition is arranged on the upper part of the dispenser chamber, and an accommodating space is formed between the partition and the top wall of the dispenser chamber, and a control module is arranged in the accommodating space, and the power supply terminal is connected to the control module, and the control module can control the power on and off of the power supply terminal.

[0013] To achieve the above-mentioned purpose of the invention, one embodiment of the present invention provides a refrigerator, including a box body, wherein the box body is provided with a refrigerating chamber, wherein the refrigerator also includes a double-leaf door for opening and closing the opening of the refrigerating chamber, and the double-leaf door includes a door body assembly as described in any of the above-mentioned embodiments, and the door body assembly is used to open and close the left or right opening of the refrigerating chamber.

[0014] To achieve the above-mentioned object of the invention, an embodiment of the present invention provides a method for manufacturing a door assembly for a refrigerator, wherein the manufacturing method comprises:

[0015] The junction box is fixed to the door lining for mounting the vertical beam side wall;

[0016] Passing the wires through the junction box and the door lining to form a door lining pre-assembled assembly for installing the side wall of the vertical beam, the wires being used to connect the heating element installed in the vertical beam of the side wall of the door lining;

[0017] Placing the door lining pre-assembled component in the door lining mold;

[0018] placing a door shell on the door shell mold;

[0019] The door lining mold and the door shell mold are molded together and the foaming material is injected.

[0020] As a further improvement of one embodiment of the present invention, the manufacturing method of the door assembly, wherein:

[0021] The door shell is provided with a distributor chamber, and “the door lining mold and the door shell mold are molded together and the foaming material is injected” specifically includes:

[0022] After one end of the wire in the door lining pre-assembly assembly placed on the inner side of the door lining passes through the side wall of the distributor chamber and enters the distributor chamber, the door lining mold and the door shell mold are closed and the foaming material is injected.

[0023] Compared with the prior art, the present invention connects the junction box to the side wall of the door lining vertical beam by bonding or fixing it with a fastening structure, which has the beneficial effect of facilitating the assembly and manufacture of the door body assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 The schematic diagram of the assembly structure of the door lining and the vertical beam shown;

[0027] Figure 3 yes Figure 2 A schematic diagram of the assembly structure of the vertical beam, the heating element and the pivoting element shown;

[0028] Figure 4 yes Figure 1 The schematic diagram of the assembly structure of the door lining and the junction box shown;

[0029] Figure 5 yes Figure 4 The structural schematic diagram of the junction box shown;

[0030] Figure 6 yes Figure 1 The structural schematic diagram of the door lining shown;

[0031] Figure 7 yes Figure 1 The structural schematic diagram of the door shell shown;

[0032] Figure 8 yes Figure 2 A schematic structural diagram of the pivot member shown. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0034] Reference Figure 1 In one embodiment of the present invention, a refrigerator 100 is provided. The refrigerator 100 may include a cabinet 1, and the cabinet 1 may be provided with a refrigerating chamber 2. The refrigerator 100 may also include a double door for opening and closing the opening of the refrigerating chamber 2. The double door may include a door body assembly 3, and the door body assembly 3 is used to open and close the left or right opening of the refrigerating chamber 2.

[0035] In this embodiment, up and down may refer to the height direction of the refrigerator 100. Front and back may refer to the thickness direction of the refrigerator 100, wherein the direction of the opening of the refrigerator compartment 2 may be the front. Left and right may refer to the left and right directions when a person faces the opening of the refrigerator compartment 2.

[0036] The double door may also include a simple door 4. The simple door 4 and the door body assembly 3 are both arranged on the front side of the opening of the refrigerating chamber 2. The simple door 4 may include a door shell and a door lining, a heat-insulating space formed between the door shell and the door lining, and a heat-insulating material filled in the heat-insulating space. Among them, the door lining is placed on the side of the opening of the refrigerating chamber 2 and is in direct contact with the space of the refrigerating chamber 2. The door shell is placed on the side of the door lining away from the refrigerating chamber 2. The heat-insulating material can prevent the cold air in the refrigerating chamber 2 from leaking.

[0037] The door assembly 3 and the simple door 4 can both be pivotally arranged on the box body 1 through a door hinge, and the simple door 4 can be used to open and close the opening of the refrigerating chamber 2 on the non-closed side of the door assembly 3. Preferably, the door assembly 3 can be arranged on the left side of the opening of the refrigerating chamber 2, and the simple door 4 can be arranged on the right side of the opening of the refrigerating chamber 2.

[0038] Reference Figure 2-Figure 6 In this embodiment, the door body assembly 3 may include a door shell 5 and a door lining 6 that are relatively arranged, an insulation space 11 formed between the door shell 5 and the door lining 6, an insulation material filling the insulation space 11, a vertical beam 7 that is pivotally arranged on the side wall of the door lining 6, and a heating element 8 arranged in the vertical beam 7.

[0039] The door body assembly 3 may further include a junction box 10, wherein the junction box 10 is at least partially disposed in the heat-insulating space 11, and the junction box 10 is bonded or fixedly connected to the side wall of the vertical beam 7 of the door lining 6 by a fastening structure, and the junction box 10 has a first wiring opening 101 disposed in the heat-insulating space 11 and a second wiring opening 102 disposed on the side of the vertical beam 7, and the side wall of the vertical beam 7 of the door lining 6 is provided with a third wiring opening 61 corresponding to the second wiring opening 102.

[0040] The door body assembly 3 may also include a wire 9, which is partially placed in the junction box 10, one end of the wire 9 passes from the junction box 10 through the first wiring port 101 into the insulation space 11 and is connected to the power supply terminal, and the other end of the wire 9 passes from the junction box 10 through the second wiring port 102 and the third wiring port 61 to the heating element 8.

[0041] In this embodiment, the vertical beam 7 can be a side wall arranged on the door lining 6 extending vertically and close to the simple door 4. For example, the door assembly 3 is arranged on the left side of the opening of the refrigerating chamber 2, and the vertical beam 7 is arranged on the right side wall of the door lining 6.

[0042] When the door assembly 3 closes the opening of the refrigerating chamber 2, the vertical beam 7 rotates and opens to the side away from the door lining 6. When the door assembly 3 is completely closed to the opening of the refrigerating chamber 2, the vertical beam 7 rotates and opens to fit the box body 1. At this time, the simple door 4 is closed to fit the outer side of the simple door 4 and the vertical beam 7. The gap between the two doors can be bridged by the vertical beam 7 to prevent the cold air in the refrigerating chamber 2 from leaking out through the gap between the simple door 4 and the door assembly 3. When the door assembly 3 is opened, the vertical beam 7 can rotate to the side close to the door lining 6 and be stored on the door lining 6 to avoid the vertical beam 7 occupying space.

[0043] In this embodiment, the heating element 8 may include a heating wire. The wire 9 may be an electric wire. The refrigerator 100 may supply power to the heating wire through the wire 9 to heat the heating wire. The heating wire may extend in a serpentine shape in the vertical direction and the width direction of the vertical beam 7 to achieve uniform and comprehensive heating of the vertical beam 7, increase the surface temperature of the vertical beam 7, and avoid condensation when the vertical beam 7 contacts the external environment.

[0044] Reference Figure 1 and Figure 7 Preferably, in the present embodiment, the door body assembly 3 may further include a distributor chamber 51, which may be disposed in the door shell 5 and open outward, the power supply terminal may be disposed in the distributor chamber 51, and a fourth wiring opening 511 is disposed on the side wall of the distributor chamber 51, the wire 9 extends from the insulation space 11 through the fourth wiring opening 511 into the distributor chamber 51 and is connected to the power supply terminal.

[0045] In this embodiment, the door assembly 3 may further include an ice-making chamber 52. The ice-making chamber 52 may be disposed in the door shell 5 and open outward. The dispenser chamber 51 may be disposed below the ice-making chamber 52. The door assembly 3 may further include an ice-making chamber door 31 for opening and closing the opening of the ice-making chamber 52, and an outer door 32 disposed outside the ice-making chamber door 31, wherein the outer door 32 covers both the ice-making chamber 52 and the dispenser chamber 51.

[0046] A partition 33 may be provided at the upper portion of the distributor chamber 51, and an accommodating space may be formed between the partition 33 and the top wall of the distributor chamber 51. A control module may be provided in the accommodating space. The power supply terminal may be connected to the control module, and the control module may control the on and off of the power supply terminal. The control module may also be used to control the current and voltage flowing through the wire 9, so as to control the heating time and heating power of the heating element 8. The power supply terminal may realize a quick and stable connection between the wire 9 and the control module. The control module may include a control board, and the power supply terminal may be provided on the control board.

[0047] The cabinet 1 may be provided with a master control module of the refrigerator 100. The ice making chamber 52 may be provided with a control module for controlling components related to the ice making chamber 52. The dispenser chamber 51 may be provided with a control module for controlling components related to the dispenser chamber 51. The control module of the ice making chamber 52 and the control module of the dispenser chamber 51 may be connected to the master control module through a wire line provided between the cabinet 1 and the door assembly 3, so as to transmit information to the master control module or execute instructions of the master control module.

[0048] The ice making room 52 may be provided with an ice maker, an ice storage box 521, a water injection assembly, an ice crushing motor, etc. The ice maker may be used to make ice cubes, the ice storage box 521 may be used to store ice cubes, the water injection assembly may be used to inject water into the ice maker to make ice cubes, and the ice crushing motor may be used to crush ice cubes. The control module of the ice making room 52 may be connected to the ice maker, the water injection assembly, the ice crushing motor, etc. to control operations such as injecting water into the ice maker, making ice, and crushing ice. The control module of the ice making room 52 may be arranged in the ice making room 52, or may be arranged on the rear wall of the ice making room 52, etc.

[0049] An ice guide channel may be provided between the dispenser chamber 51 and the ice making chamber 52. The ice guide channel may be used to transport ice in the ice making chamber 52 to the dispenser chamber 51, and the ice guide channel may include an ice outlet provided in the dispenser chamber 51. The dispenser chamber 51 may also be provided with an automatic water filling port and a manual water intake port.

[0050] An automatic water filling pot 513 may be provided below the automatic water filling port. The control module of the dispenser chamber 51 may be used to control the automatic water filling port to automatically fill the automatic water filling pot 513, so that the user can directly take the water in the automatic water filling pot 513 to meet the user's large water needs. The opening and closing of the ice outlet and the manual water inlet may be controlled by the user by pressing a mechanical component such as a tongue depressor, so that the user can be supplied with an appropriate amount of ice cubes and water according to the user's needs.

[0051] By respectively arranging control modules in the ice-making chamber 52 and the dispenser chamber 51, it is possible to facilitate the control of the ice-making chamber 52 components and the dispenser chamber 51 components, to simplify the circuits for power supply or signal transmission between the door body and the cabinet 1, to simplify the circuits for power supply or signal transmission in the door body assembly 3, and to facilitate the manufacture and assembly of the refrigerator 100 and the door body assembly 3.

[0052] By specially setting up an accommodation space for accommodating the control module and the power supply terminal in the dispenser chamber 51, the installation and maintenance of the control module and the power supply terminal can be facilitated, the plugging of the wire 9 can be facilitated, the control module, the power supply terminal and the wire 9 can be concealed, the control module, the power supply terminal, the wire 9 and the external environment of the refrigerator 100 can be isolated, and the service life of the control module, the power supply terminal and the wire 9 can be improved.

[0053] Of course, in other embodiments of the present invention, the control module and the power supply terminal can both be arranged in the box 1. After one end of the wire 9 passes through the first wiring port 101 from the junction box 10 into the heat preservation space 11, it can extend a distance in the heat preservation space 11 and then pass through the heat preservation space 11 from the hinge axis of the door hinge and extend to the box 1. Alternatively, the power supply terminal can also be arranged in the heat preservation space 11, the control module can be arranged in the door body assembly 3, and can also be arranged in the box 1, the power supply terminal and the control module can be connected by wires, and after one end of the wire 9 passes through the first wiring port 101 from the junction box 10 into the heat preservation space 11, it can extend in the heat preservation space 11 to connect to the power supply terminal.

[0054] Reference Figures 4 to 6 In this embodiment, the junction box 10 can be bonded to the side wall of the door lining 6 vertical beam 7 by double-sided tape or glue.

[0055] In this embodiment, the junction box 10 can also be fixedly connected to the side wall of the door lining 6 and the side of the vertical beam 7 by a fastening structure such as a clamp. The fastening structure of the present invention can refer to any structure used to independently fix the junction box 10 to the side wall of the door lining 6 before the door lining 6 and the door shell 5 are molded together, so that the junction box 10 will not fall off the side wall of the door lining 6.

[0056] Reference Figures 1 to 7 Furthermore, in this embodiment, a method for manufacturing a door assembly 3 for a refrigerator 100 is also provided, wherein the manufacturing method may include:

[0057] The junction box 10 is fixed to the door lining 6 for mounting the side wall of the vertical beam 7;

[0058] Pass the wire 9 through the junction box 10 and the door lining 6 for installing the side wall of the vertical beam 7 to form a pre-assembled assembly of the door lining 6, and the wire 9 is used to connect the heating element 8 installed in the vertical beam 7 on the side wall of the door lining 6;

[0059] Placing the door lining 6 pre-assembled assembly in the door lining 6 mold;

[0060] Placing the door shell 5 in the door shell 5 mold;

[0061] The door lining 6 mold and the door shell 5 mold are molded together and the foaming material is injected.

[0062] Furthermore, in this embodiment, the door lining 6 pre-assembly assembly may include the vertical beam 7, that is, before the door lining 6 pre-assembly assembly is placed in the door lining 6 mold, the vertical beam 7 may be installed on the side wall of the door lining 6, and the wire 9 may be connected to the heating element 8 in the vertical beam 7. The door lining 6 pre-assembly assembly may also not include the vertical beam 7, that is, after the door lining 6 mold and the door shell 5 mold are molded together and the foaming material is injected, the vertical beam 7 may be installed on the door lining 6, and the wire 9 may be connected to the heating element 8 in the door lining 6.

[0063] Before the door lining 6 and the door shell 5 are molded together, the junction box 10 is fixedly connected to the door lining 6 by an adhesive or fastening structure, which can facilitate the assembly and manufacturing of the door body assembly 3, simplify the installation structure and assembly process of the junction box 10 and the door lining 6, facilitate the assembly and manufacturing of the junction box 10 and the door lining 6, ensure the tight connection between the junction box 10 and the door lining 6, ensure the accuracy and reliability of the fit between the junction box 10 and the door lining 6, avoid the formation of a connection gap between the junction box 10 and the door lining 6 due to improper installation, and then cause the injected foamed insulation material to overflow from the connection gap between the junction box 10 and the door lining 6, reduce the risk of overflow, improve assembly efficiency and reduce costs, and ensure the accuracy and reliability of the fit between the junction box 10 and the vertical beam 7, facilitate the assembly of the vertical beam 7, the junction box 10 and the door lining 6, and avoid the difficulty in installing the vertical beam 7 due to improper installation of the junction box 10.

[0064] Reference Figure 6 and Figure 7 Furthermore, in the present embodiment, the distributor chamber 51 is formed by the door shell 5 being recessed toward the door lining 6, the fourth wiring opening 511 is arranged on the rear wall of the distributor chamber 51, the edge of the fourth wiring opening 511 is provided with a first annular flange 514 protruding toward the door lining 6, the door lining 6 is provided with a second annular flange 522 cooperating with the first annular flange 514, the second annular flange 522 is at least partially sleeved in the first annular flange 514, the first annular flange 514 is provided with a first notch 515, the second annular flange 522 is provided with a second notch 523 corresponding to the first notch 515, the wire 9 penetrates into the fourth wiring opening 511 from the insulation space 11 through the first notch 515 and the second notch 523.

[0065] Furthermore, in this embodiment, the manufacturing method of the door body assembly 3, wherein a distributor chamber 51 is provided on the door shell 5, and “combining the door lining 6 mold and the door shell 5 mold and injecting the foaming material” may specifically include:

[0066] After one end of the wire 9 in the door lining 6 pre-assembled assembly placed on the inner side of the door lining 6 passes through the side wall of the distributor chamber 51 and enters the distributor chamber 51, the door lining 6 mold and the door shell 5 mold are closed and the foaming material is injected.

[0067] By arranging the first annular flange 514 and the second annular flange 522 which are nested with each other on the rear wall of the distributor chamber 51, a guiding role can be played for the mold closing of the door lining 6 and the door shell 5, which is convenient for the mold closing of the door lining 6 and the door shell 5, ensures the accuracy of the positioning of the door lining 6 and the door shell 5, avoids the mutual misalignment of the door lining 6 and the door shell 5 when the mold closing is carried out, and can also facilitate the extension of the wire 9 from the junction box 10 to the distributor chamber 51, so that the routing of the wire 9 can be more regular, and the interference between the wire 9 and other structures of the door body assembly 3 can be prevented, and the mold closing of the outer shell mold and the inner shell mold can be facilitated, and the assembly and manufacturing of the door body assembly 3 can be facilitated, and the installation structure and assembly process of the door body assembly 3 can be simplified.

[0068] Reference Figure 6 and Figure 7 Further, in this embodiment, the door lining 6 is provided with an annular seal on the outer periphery of the second annular flange 522, and the end of the first annular flange 514 is connected to the annular seal. Preferably, the annular seal can be a sealing sponge. The sealing sponge can be attached to the door lining 6 by double-sided tape.

[0069] The annular seal can fill the gap between the first annular flange 514, the second annular flange 522 and the door lining 6, and can prevent the insulation material from overflowing from the gap between the first annular flange 514, the second annular flange 522 and the door lining 6 after the mold is closed and the foaming material is injected, thereby reducing the risk of overflow, having a simple structure, improving assembly efficiency and reducing costs.

[0070] Reference Figure 4 A sealing block is provided at the first wiring opening 101, and the wire 9 passes through the first wiring opening 101 via the sealing block. The sealing block can be made of elastic rubber material.

[0071] The sealing block can fill the gap between the wire 9 and the first wiring opening 101, which can prevent the insulation material from overflowing from the gap between the wire 9 and the first wiring opening 101 after the mold is closed and the foaming material is injected, thereby reducing the risk of overflow, having a simple structure, improving assembly efficiency and reducing costs.

[0072] Reference Figures 4 to 6Further, in the present embodiment, the side wall of the vertical beam 7 of the door lining 6 is recessed toward the heat preservation space 11 to form an installation portion 524, and the installation portion 524 has a installation wall 525, and the installation wall 525 is provided with the third wiring opening 61, and the junction box 10 may include a box body 103 and a connecting edge 104 extending outward from the peripheral wall of the box body 103, and the box body 103 and the connecting edge 104 are both placed on the heat preservation space 11 side of the door lining 6, and the box body 103 forms the first wiring opening 101 and the second wiring opening 102, and the connecting edge 104 covers at least a portion of the installation wall 525, and the junction box 10 may further include a limiting flange 105 protruding from the second wiring opening 102 to the third wiring opening 61, and the limiting flange 105 is at least partially sleeved in the third wiring opening 61.

[0073] Further, in this embodiment, the fastening structure can be disposed between the connecting edge 104 and the mounting wall 525, or double-sided adhesive can be directly disposed between the connecting edge 104 and the mounting wall 525, so as to stably mount the junction box 10 on the side wall of the door lining 6 to prevent the junction box 10 from moving or rotating relative to the door lining 6. The matching structure of the limiting flange 105 and the third wiring opening 61 can further play the role of installation positioning and limiting.

[0074] Such an arrangement can simplify the installation structure and assembly process of the junction box 10 and the door lining 6, facilitate the assembly and manufacture of the junction box 10 and the door lining 6, ensure a tight connection between the junction box 10 and the door lining 6, ensure the accuracy and reliability of the fit between the junction box 10 and the door lining 6, avoid the formation of a connection gap between the junction box 10 and the door lining 6 due to improper installation, and then cause the injected foamed insulation material to overflow from the connection gap between the junction box 10 and the door lining 6, reduce the risk of overflow, improve assembly efficiency and reduce costs, and ensure the accuracy and reliability of the fit between the junction box 10 and the vertical beam 7.

[0075] Reference Figure 2-Figure 6 and Figure 8Further, in this embodiment, the door body assembly 3 may include a pivot member 12 for pivotally mounting the vertical beam 7 to the door lining 6, and the pivot member 12 may include a fixing plate 121 fixedly arranged on the outside of the mounting wall 525, and the fixing plate 121 covers the third wiring opening 61. A threaded connection portion 106 is provided in the box body 103, and the threaded connection portion is formed with a blind hole 107 open toward the third wiring opening 61, and the fixing plate 121 is provided with a through hole 122 that cooperates with the blind hole 107. The fixed plate 121 is fixedly connected to the box body 103 by a threaded connector through the through hole 122 and the blind hole 107. The pivot member 12 may also include a pivot shaft 123 rotatably arranged in the vertical beam 7, and a connecting block 124 connecting the pivot shaft 123 and the fixed plate 121. A wiring channel 125 connecting the third wiring port 61 and the space inside the vertical beam 7 is formed inside the fixed plate 121, the connecting block 124, and the pivot shaft 123. The wire 9 passes through the wiring channel 125 and is connected to the heating element 8.

[0076] Reference Figure 2 and Figure 3 Further, in the present embodiment, the junction box 10 can be arranged at the middle position in the height direction of the door lining 6. The pivot member 12 can be arranged at the middle position of the vertical beam 7. The door body assembly 3 can also include a second pivot member 13 and a third pivot member 14 for pivotally mounting the vertical beam 7 on the door lining 6. The second pivot member 13 can be fixedly connected to the upper part of the side wall of the door lining 6, and the third pivot member 14 can be fixedly connected to the lower part of the side wall of the door lining 6. The second pivot member 13 and the third pivot member 14 can both include a pivot shaft arranged in the vertical beam 7, and the pivot shafts of the second pivot member 13 and the third pivot member 14 are coaxial with the pivot shaft 123 of the pivot member 12.

[0077] Such an arrangement can realize the concealed arrangement and reliable connection of the wire 9 and the heating element 8, can reduce the swing amplitude of the wire 9 when the vertical beam 7 rotates, can avoid the wire 9 being damaged due to excessive swing amplitude of the wire 9 caused by frequent rotation of the vertical beam 7, can ensure the accuracy and reliability of the cooperation between the junction box 10 and the vertical beam 7, can facilitate the assembly of the vertical beam 7, and can avoid the difficulty in installing the vertical beam 7 due to improper installation of the junction box 10.

[0078] In summary, the door body assembly 3, refrigerator 100 and the manufacturing method of the door body assembly 3 for refrigerator 100 of the present invention can solve the problem in the prior art that a wire 9 needs to be set between the heating element 8 of the vertical beam 7 and the door body on which the vertical beam 7 is installed, making the door body manufacturing complicated. The technical solution in the present application can facilitate the assembly and manufacture of the door body assembly 3, simplify the installation structure and assembly process of the junction box 10 and the door lining 6, facilitate the assembly and manufacture of the junction box 10 and the door lining 6, ensure a tight connection between the junction box 10 and the door lining 6, ensure the accuracy and reliability of the fit between the junction box 10 and the door lining 6, avoid the formation of a connection gap between the junction box 10 and the door lining 6 due to improper installation, and then cause the injected foamed insulation material to overflow from the connection gap between the junction box 10 and the door lining 6, reduce the risk of overflow, improve assembly efficiency and reduce costs, and ensure the accuracy and reliability of the fit between the junction box 10 and the vertical beam 7, facilitate the assembly of the vertical beam 7, the junction box 10 and the door lining 6, and avoid difficulties in installing the vertical beam 7 due to improper installation of the junction box 10.

[0079] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0080] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods 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 door assembly, comprising a door shell and a door lining arranged opposite to each other, a heat preservation space formed between the door shell and the door lining, a heat preservation material filling the heat preservation space, a vertical beam pivotally arranged on a side wall of the door lining, and a heating element arranged in the vertical beam, characterized in that: The door assembly further includes a junction box, the junction box is at least partially placed in the heat preservation space, the junction box is bonded or fixedly connected to the side wall of the door lining vertical beam by a fastening structure, the junction box has a first wiring opening placed in the heat preservation space and a second wiring opening placed on the side of the vertical beam, and the side wall of the door lining vertical beam is provided with a third wiring opening corresponding to the second wiring opening. The door body assembly also includes a wire, part of which is placed in the junction box, one end of the wire passes through the first wiring port from the junction box into the insulation space and is connected to the power supply terminal, and the other end of the wire passes through the second wiring port and the third wiring port from the junction box to be connected to the heating element.

2. The door assembly according to claim 1, characterized in that: The door body assembly also includes a distributor chamber, which is arranged in the door shell and opens outward, the power supply terminal is arranged in the distributor chamber, and a fourth wiring opening is arranged on the side wall of the distributor chamber. The wire extends from the insulation space through the fourth wiring opening into the distributor chamber and is connected to the power supply terminal.

3. The door assembly according to claim 2, characterized in that: The distributor chamber is formed by the door shell being recessed toward the door lining, and the fourth wiring opening is arranged on the rear wall of the distributor chamber. The edge of the fourth wiring opening is provided with a first annular flange protruding toward the door lining, and the door lining is provided with a second annular flange matching with the first annular flange, and the second annular flange is at least partially sleeved in the first annular flange, and the first annular flange is provided with a first notch, and the second annular flange is provided with a second notch corresponding to the first notch, and the wire penetrates into the fourth wiring opening from the insulation space through the first notch and the second notch.

4. The door assembly according to claim 3, characterized in that: The door lining is provided with an annular seal on the outer periphery of the second annular flange, the end of the first annular flange is connected to the annular seal, a sealing block is provided at the first wiring opening, and the wire passes through the first wiring opening via the sealing block.

5. The door assembly according to claim 1, characterized in that: The side wall of the vertical beam of the door lining is recessed toward the insulation space to form an installation portion, the installation portion has a installation wall, the installation wall is provided with the third wiring opening, the junction box includes a box body and a connecting edge extending outward from the peripheral wall of the box body, the box body and the connecting edge are both placed on the insulation space side of the door lining, the box body forms the first wiring opening and the second wiring opening, the connecting edge covers at least a portion of the installation wall, the junction box also includes a limiting flange protruding from the second wiring opening to the third wiring opening, the limiting flange is at least partially sleeved in the third wiring opening.

6. The door assembly according to claim 5, characterized in that: The door body assembly includes a pivot member for pivotally mounting the vertical beam to the door lining, the pivot member includes a fixing plate fixedly arranged on the outside of the mounting wall, the fixing plate covers the third wiring opening, a threaded connection portion is provided in the box body, the threaded connection portion forms a blind hole open toward the third wiring opening, the fixing plate is provided with a through hole matching the blind hole, the fixing plate is fixedly connected to the box body by a threaded connection member through the through hole and the blind hole, the pivot member also includes a pivot shaft rotatably arranged in the vertical beam, a connecting block connecting the pivot shaft and the fixing plate, a wiring channel connecting the third wiring opening and the space in the vertical beam is formed inside the fixing plate, the connecting block and the pivot shaft, and the wire is connected to the heating element through the wiring channel.

7. The door assembly according to claim 2, characterized in that: The door body assembly also includes an ice-making chamber, which is arranged on the door shell and opens outward, and the dispenser chamber is arranged below the ice-making chamber. The door body assembly also includes an ice-making chamber door for opening and closing the opening of the ice-making chamber, and an outer door arranged on the outer side of the ice-making chamber door, and the outer door covers the ice-making chamber and the dispenser chamber at the same time. A partition is arranged on the upper part of the dispenser chamber, and an accommodating space is formed between the partition and the top wall of the dispenser chamber. A control module is arranged in the accommodating space, and the power supply terminal is connected to the control module, and the control module can control the power on and off of the power supply terminal.

8. A refrigerator, comprising a box body, wherein the box body is provided with a refrigerating chamber, characterized in that: The refrigerator also includes a double door for opening and closing the opening of the refrigerating chamber, and the double door includes a door body assembly as described in any one of claims 1 to 7, and the door body assembly is used to open and close the left or right opening of the refrigerating chamber.

9. A method for manufacturing a door assembly for a refrigerator, characterized in that: The manufacturing method comprises: The junction box is fixed to the door lining for mounting the vertical beam side wall; Passing the wires through the junction box and the door lining to form a door lining pre-assembled assembly for installing the side wall of the vertical beam, the wires being used to connect the heating element installed in the vertical beam of the side wall of the door lining; Placing the door lining pre-assembled component in the door lining mold; placing a door shell on the door shell mold; The door lining mold and the door shell mold are molded together and the foaming material is injected.

10. The method for manufacturing a door assembly according to claim 9, characterized in that: A distributor chamber is arranged on the door shell, and "closing the door lining mold and the door shell mold and injecting the foaming material" specifically includes: After one end of the wire in the door lining pre-assembly assembly placed on the inner side of the door lining passes through the side wall of the distributor chamber and enters the distributor chamber, the door lining mold and the door shell mold are closed and the foaming material is injected.

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