Door assembly and refrigerator including the door assembly

Abstract

This utility model relates to the field of biomedical technology, specifically providing a door device and a refrigerator including the door device. Specifically, the door device includes a door body, a wiring concealment component, and an electric heating component. Each side of the door body has a receiving space and a mounting hole communicating with it. The electric heating component has two sets of parallel-connected terminal blocks located in the receiving space and extending from the mounting holes. The wiring concealment component can be inserted into the receiving space through the mounting holes, and the terminal blocks can be detachably connected to the wiring concealment component. When switching between left and right opening modes, the wiring terminal block routing does not need to be changed, making operation simpler and reducing the risk of damage to the terminal blocks. The wiring concealment component allows the terminal blocks in the receiving space to be pulled out, concealing the mounting holes for a more aesthetically pleasing appearance and preventing debris from entering the receiving space through the mounting holes.

Description

Technical Field

[0001] This utility model relates to the field of biomedical technology, specifically providing a door device and a refrigerator including the door device. Background Technology

[0002] With the diversification of user needs and the limitations of the usage environment, users have put forward new requirements for the opening method of refrigerators. Specifically, existing users need refrigerators to be able to switch between left and right opening modes. That is, in addition to being able to open from the left, refrigerators should also be able to switch to opening from the right. In the left opening mode, the right side of the door is hinged to the refrigerator body, and the door can be opened from the left. When it is necessary to switch to the right opening mode, the hinge needs to be installed on the left side of the door, so that the left side of the door is hinged to the refrigerator body, thereby enabling the door to open from the right.

[0003] Replacing the hinge installation position is easy. However, to address the issue of condensation on the door, an electric heating element is installed on the refrigerator door. The wiring terminals of this element need to be connected to the power supply on the refrigerator body. The right side of the door is hinged to the refrigerator body, and the wiring terminals extend from the top right side of the door and pass into the refrigerator body to connect to the power supply. If the door needs to be switched to right-hand opening, the wiring terminals need to extend from the top left side of the door. Therefore, the door needs to be disassembled, and the wiring terminals need to be routed to extend from the top left side of the door. This operation is cumbersome, and the wiring terminals can easily be damaged during the disassembly process, affecting the normal operation of the electric heating element.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing door devices require changing the routing of wiring terminals when switching between left and right opening, which is cumbersome and easily damages the wiring terminals.

[0006] In a first aspect, the present invention provides a door device comprising a door body, a wire concealing component, and an electric heating component mounted on the door body. The door body has a first accommodating space and a second accommodating space inside. The top of the door body is provided with a first mounting hole and a second mounting hole respectively communicating with the first accommodating space and the second accommodating space. The first mounting hole and the second mounting hole are respectively located near the left and right sides of the door body. The electric heating component has a first terminal group and a second terminal group arranged in parallel. The first terminal group is located in the first accommodating space and can extend from the first mounting hole, and the second terminal group is located in the second accommodating space and can extend from the second mounting hole. The wire concealing component is selectively inserted into the first accommodating space from the first mounting hole or into the second accommodating space from the second mounting hole. When the wire concealing component is inserted into the first accommodating space from the first mounting hole, the first terminal group is detachably connected to the wire concealing component, and the wire concealing component covers the first mounting hole. When the wire concealing component is inserted into the second accommodating space from the second mounting hole, the second terminal group is detachably connected to the wire concealing component, and the wire concealing component covers the second mounting hole.

[0007] In the preferred embodiment of the above-mentioned door device, the wire concealment component has a receiving cavity, the first terminal group includes a first terminal connector and a first wire harness, the second terminal group includes a second terminal connector and a second wire harness, and the first terminal connector or the second terminal connector is located in the receiving cavity.

[0008] In a preferred embodiment of the above-mentioned door device, the side wall of the wire-hiding component is provided with a first opening communicating with the receiving cavity, and the first terminal connector and the second terminal connector can pass through the first opening into the receiving cavity. The bottom wall of the wire-hiding component is provided with a second opening communicating with the receiving cavity. The second opening is connected to the bottom end of the first opening. The second opening is configured to allow the first wire harness and the second wire harness to pass through but not allow the first terminal connector and the second terminal connector to pass through.

[0009] In the preferred embodiment of the above-mentioned door device, the first opening includes an installation opening and an anti-detachment opening distributed vertically. The top and bottom ends of the anti-detachment opening are respectively connected to the installation opening and the second opening. The installation opening allows the first terminal connector and the second terminal connector to pass through. The anti-detachment opening is configured to allow the first wire harness and the second wire harness to pass through but not allow the first terminal connector and the second terminal connector to pass through.

[0010] In the preferred embodiment of the above-mentioned door device, the accommodating cavity includes a first cavity and a second cavity that are distributed vertically and communicate with each other. The mounting opening and the anti-detachment opening are both located at positions corresponding to the second cavity. The first cavity and the second cavity can respectively accommodate one first terminal connector or one second terminal connector.

[0011] In the preferred embodiment of the above-mentioned door device, the anti-detachment opening includes a first part and a second part distributed vertically. The top end of the first part is connected to the bottom end of the installation opening, the bottom end of the first part is connected to the top end of the second part, and the bottom end of the second part is connected to the second opening. The first part and the second part are staggered along the circumference of the wire-concealing component.

[0012] In the preferred embodiment of the above-mentioned door device, the wire-concealing component includes a housing and a cover. The receiving cavity is formed in the housing, the top of the housing is open, and a first snap-fit ​​structure is provided on the housing. The cover includes a plate-shaped body and an annular insertion portion provided on the plate-shaped body. A second snap-fit ​​structure is provided on the annular insertion portion. The annular insertion portion is inserted into the housing from the top of the housing. The first snap-fit ​​structure and the second snap-fit ​​structure engage to snap-fit ​​and fix the cover to the housing. The plate-shaped body can cover the first mounting hole or the second mounting hole.

[0013] In the preferred embodiment of the above-mentioned door device, the first snap-fit ​​structure is a snap-fit ​​interface formed on the housing, the annular insertion portion is provided with a third opening, the first snap-fit ​​structure is a buckle disposed in the third opening, the bottom end of the buckle is connected to the bottom wall of the third opening, the top end of the buckle and the left and right sides are respectively provided with gaps between them and the top wall and side wall of the third opening, the top end of the buckle is provided with a stepped surface, and the stepped surface abuts against the top wall of the snap-fit ​​interface; and / or

[0014] The housing is provided with a vertically extending first positioning guide structure, and the annular insertion part is provided with a second positioning guide structure. During the installation of the cover, the first positioning guide structure and the second positioning guide structure cooperate to enable the first snap-fit ​​structure and the second snap-fit ​​structure to snap into place smoothly.

[0015] In the preferred embodiment of the above-mentioned door device, the number of card interfaces is at least two and they are distributed at intervals along the circumference of the housing; the number of third openings is at least two and they are corresponding to the card interfaces; the number of latches in the third openings is at least two and they are distributed at intervals along the circumference of the annular insertion portion; and / or

[0016] The outer wall of the buckle is provided with a slope, which slopes from top to bottom along the direction close to the inner wall of the buckle; and / or

[0017] The first positioning guide structure is a positioning guide groove, and the second positioning guide structure is a positioning guide rib adapted to the positioning guide groove. The top end of the positioning guide groove is open, and the positioning guide rib can be inserted into the positioning guide groove from the top end of the positioning guide groove and slide along the length direction of the positioning guide groove.

[0018] In a second aspect, the present invention also provides a refrigerator box with the aforementioned door device.

[0019] In adopting the above technical solution, the door device of this utility model provides two sets of parallel terminal blocks for the electric heating component, namely the first terminal block and the second terminal block. In the left-opening mode, the right side of the door is pivotally connected to the housing, the second terminal block extends from the second mounting hole and is then connected to the power supply installed on the housing, and the first terminal block is hidden in the first accommodating space. When it is necessary to switch from the left-opening mode to the right-opening mode, the left side of the door is pivotally connected to the housing, the first terminal block extends from the first mounting hole and is then connected to the power supply installed on the housing, and the second terminal block is hidden in the second accommodating space. Compared with the door device in the prior art, the door device of this utility model does not require modification when switching between left and right opening modes. The routing of the wiring terminals makes operation simpler and reduces the risk of damage. Furthermore, the door device of this invention includes a wire-concealing component. This component offers at least two advantages. Taking the left-opening mode as an example, firstly, the first wiring terminal group can be detachably connected to the wire-concealing component. This allows the first wiring terminal group to be pulled out of the first accommodating space when switching from the left-opening mode to the right-opening mode. Without the wire-concealing component, tools would be needed to pull the first wiring terminal group out of the first accommodating space, which is inconvenient. Secondly, the wire-concealing component can conceal the first mounting hole, making it more aesthetically pleasing and preventing debris from entering the first accommodating space through the mounting hole.

[0020] Furthermore, by providing a receiving cavity in the hidden component to accommodate the first terminal connector or the second terminal connector, this utility model can effectively protect the first terminal connector or the second terminal connector and prevent the first terminal connector or the second terminal connector from being damaged during the pulling process.

[0021] Furthermore, this utility model provides a first opening and a second opening that are connected to each other on the side wall and bottom wall of the wire-concealing component, respectively, which facilitates the installation of the first terminal connector and the second terminal connector into the receiving cavity. In addition, it can prevent the first terminal connector or the second terminal connector from coming out of the receiving cavity when the first terminal group or the second terminal group is pulled upward through the wire-concealing component.

[0022] Furthermore, by setting the first opening as an installation opening and an anti-detachment opening distributed vertically, this utility model is more conducive to preventing the first terminal connector and the second terminal connector from detaching from the receiving cavity.

[0023] Furthermore, by configuring the anti-detachment opening as including a first part and a second part that are circumferentially misaligned, this utility model facilitates confining the wire harness connected to the terminal connector within the second cavity.

[0024] Furthermore, this utility model connects only the bottom end of the buckle to the third opening, while the rest of the buckle is not connected to the third opening. During the process of inserting the annular insertion part downward into the housing, the buckle is squeezed by the inner wall of the housing and can deform towards the inner side of the annular insertion part, thereby making it easier for the annular insertion part to be inserted into the housing. By setting a stepped surface at the top of the buckle to abut against the top wall of the card interface, the snapping effect is better. After the buckle and the card interface snap together, the bottom surface of the plate-shaped body of the cover also fits perfectly with the top of the housing.

[0025] Furthermore, this invention provides an inclined surface on the outer side wall of the buckle that slopes towards the inner side wall of the buckle, making it easier for the annular insertion part to be inserted into the housing.

[0026] Furthermore, through the cooperation of the first positioning guide structure and the second positioning guide structure, this utility model enables the buckle on the annular insertion part to smoothly engage with the snap-fit ​​interface on the housing. The first positioning guide structure and the second positioning guide structure can both position and guide. Through the positioning function of the first positioning guide structure and the second positioning guide structure, the buckle on the annular insertion part can be aligned with the snap-fit ​​interface on the housing. Through the guiding function of the first positioning guide structure and the second positioning guide structure, the rotation of the annular insertion part during downward insertion can be prevented, thereby preventing the buckle on the annular insertion part from shifting circumferentially.

[0027] Furthermore, the refrigerator provided by this utility model, based on the above technical solution, includes the aforementioned door device, and thus possesses the technical effects of the aforementioned door device. Compared with the refrigerator before the improvement, the refrigerator of this utility model does not need to change the routing of the wiring terminals when switching between left and right doors, making the operation simpler and less prone to damage to the wiring terminals. Attached Figure Description

[0028] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0029] Figure 1 This is a schematic diagram of the door device of this utility model. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the door device of this utility model. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the structure of the first terminal connector and the first wire harness of this utility model;

[0032] Figure 4 This is a structural schematic diagram of the first terminal block and the wire concealment component of this utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the wire-concealing component of this utility model;

[0034] Figure 6 This is a schematic diagram of the shell structure of the wire-concealing component of this utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the cover of the wire-concealing component of this utility model. Figure 1 ;

[0036] Figure 8 This is a schematic diagram of the structure of the cover of the wire-concealing component of this utility model. Figure 2 .

[0037] List of reference numerals in the attached diagram:

[0038] 1. Door body; 11. First mounting hole; 12. Second mounting hole; 13. Door handle; 2. Concealed wire component; 21. Housing; 22. Cover; 211. Receiving cavity; 212. First opening; 213. Second opening; 214. Snap-fit ​​interface; 215. Positioning guide groove; 2121. Mounting opening; 2122. Anti-detachment opening; 21221. First part; 21222. Second part; 221. Plate-shaped body; 222. Annular insertion part; 2221. Third opening; 2222. Snap-fit; 2223. Positioning guide rib; 22221. Stepped surface; 22222. Inclined surface; 31. First terminal connector; 32. First wire harness. Detailed Implementation

[0039] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0040] It should be noted that in the description of this utility model, terms such as "inner" and "outer," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Furthermore, it should be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connect," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Specifically, this utility model provides a refrigerator, which includes a body and a door assembly. The door assembly allows for interchangeable left and right opening.

[0043] like Figure 1 and Figure 2 As shown, Figure 1 The diagram shows a door assembly that opens from the left. The right side of the door assembly is pivotally connected to the housing via a hinge. A door handle 13 is mounted on the left side of the door assembly, allowing the user to open the door assembly from the left. Figure 2 The diagram shows a door assembly that opens from the right. The left side of the door assembly is pivotally connected to the housing via a hinge, and the door handle 13 is installed on the right side of the door assembly, allowing the user to open the door assembly from the right side.

[0044] like Figure 1 and Figure 2 As shown, the door device of this utility model includes a door body 1 and an electric heating component (not shown in the figure) installed on the door body 1.

[0045] The door body 1 has a first accommodating space and a second accommodating space inside. The top of the door body 1 is provided with a first mounting hole 11 and a second mounting hole 12 that communicate with the first accommodating space and the second accommodating space, respectively. The first mounting hole 11 and the second mounting hole 12 are respectively located near the left and right sides of the door body 1. The electric heating component has a first terminal group and a second terminal group arranged in parallel. The first terminal group is located in the first accommodating space and can extend from the first mounting hole 11, and the second terminal group is located in the second accommodating space and can extend from the second mounting hole 12.

[0046] In other words, this utility model provides two sets of parallel terminal blocks for the electric heating component, namely the first terminal block and the second terminal block. In the left-opening mode, the right side of the door 1 is pivotally connected to the housing, the second terminal block extends from the second mounting hole 12 and is then connected to the power supply installed on the housing, and the first terminal block is hidden in the first accommodating space. When it is necessary to switch from the left-opening mode to the right-opening mode, the left side of the door 1 is pivotally connected to the housing, the first terminal block extends from the first mounting hole 11 and is then connected to the power supply installed on the housing, and the second terminal block is hidden in the second accommodating space. Compared with the door device in the prior art, the door device of this utility model does not need to change the direction of the terminal blocks when switching between left and right opening modes, making the operation simpler and less prone to damage to the terminal blocks.

[0047] It should be noted that this utility model does not limit the specific structural form of the electric heating component. For example, the electric heating component can be set as an electric heating wire, an electric heating rod, or an electric heating plate, etc. Of course, this utility model preferably sets the electric heating component as an electric heating wire.

[0048] Furthermore, the present invention preferably sets the door body as a glass door, the glass door including a frame and an inner glass layer and an outer glass layer installed in the frame, the electric heating component is disposed between the outer glass layer and the inner glass layer, and the first accommodating space, the second accommodating space, the first mounting hole and the second mounting hole are all disposed in the frame.

[0049] Furthermore, it should be noted that the power supply installed on the enclosure generally has power terminals that mate with the first and second terminal groups of the electric heating component. In practical applications, those skilled in the art can install power terminals only on the left or right side of the enclosure, for example, only on the right side. In this case, the wiring harness of the first terminal group needs to be longer, extending along the top plate of the enclosure to connect with the power terminal on the right side. Alternatively, the first and second power terminals can be installed on the left and right sides of the enclosure respectively. In the right-opening mode, the first terminal group on the electric heating component connects to the first power terminal; in the left-opening mode, the second terminal group on the electric heating component connects to the second power terminal. Such flexible adjustments and changes do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model. Of course, this utility model preferably installs the first and second power terminals on the left and right sides of the enclosure respectively.

[0050] Furthermore, it should be noted that the first terminal block includes two terminals: a first positive terminal and a first negative terminal, as shown below. Figure 3As shown, the first positive terminal and the first negative terminal have the same structure, both including connected terminal connectors and wire harnesses, referred to as the first terminal connector 31 and the first wire harness 32. The second terminal group also includes two terminals, namely the second positive terminal and the second negative terminal. The second positive terminal and the second negative terminal also have the same structure, both including connected terminal connectors and wire harnesses, referred to as the second terminal connector and the second wire harness.

[0051] Preferably, such as Figures 1 to 5 As shown, the door device of this utility model also includes a wire-concealing component 2, wherein the wire-concealing component 2 is selectively inserted into the first receiving space from the first mounting hole 11 or into the second receiving space from the second mounting hole 12. When the wire-concealing component 2 is inserted into the first receiving space from the first mounting hole 11, the first terminal group is detachably connected to the wire-concealing component 2, and the wire-concealing component 2 covers the first mounting hole 11. When the wire-concealing component 2 is inserted into the second receiving space from the second mounting hole 12, the second terminal group is detachably connected to the wire-concealing component 2, and the wire-concealing component 2 covers the second mounting hole 12.

[0052] It should be noted that "the wire-concealing component 2 is selectively inserted into the first receiving space from the first mounting hole 11 or into the second receiving space from the second mounting hole 12" means that in the left-side opening mode, the wire-concealing component 2 is inserted into the first receiving space from the first mounting hole 11, and in the right-side opening mode, the wire-concealing component 2 is inserted into the second receiving space from the second mounting hole 12.

[0053] The installation of the concealed wiring component 2 has at least two advantages. Taking the left-opening mode as an example, the first advantage is that the first terminal block can be detachably connected to the concealed wiring component 2. In this way, when it is necessary to switch from the left-opening mode to the right-opening mode, the first terminal block in the first accommodating space can be pulled out through the concealed wiring component 2. Without the concealed wiring component 2, tools would be needed to pull the first terminal block out of the first accommodating space, which is more troublesome. The second advantage is that the concealed wiring component 2 can cover the first mounting hole 11, which is more aesthetically pleasing and can prevent debris from entering the first accommodating space through the first mounting hole 11.

[0054] Preferably, such as Figure 4 and Figure 5 As shown, the wire-concealing component 2 of this utility model has a receiving cavity 211, and the first terminal connector 31 or the second terminal connector is located in the receiving cavity 211.

[0055] In the left-opening mode, the two first terminal connectors 31 of the first terminal group can be hidden in the receiving cavity 211, which can effectively protect the first terminal connectors 31 and prevent them from being damaged during the pulling process. Similarly, in the right-opening mode, the two second terminal connectors of the second terminal group can be hidden in the receiving cavity 211, which can effectively protect the second terminal connectors and prevent them from being damaged during the pulling process.

[0056] It should be noted that, taking the first terminal connector 31 as an example, as Figure 4 As shown, the two first terminal connectors 31 can be distributed vertically in the receiving cavity 211, that is, distributed along the length of the receiving cavity 211. Alternatively, the two first terminal connectors 31 can be arranged side by side in the receiving cavity 211. Such flexible adjustment and change do not deviate from the principle and scope of this utility model, and should be limited to the protection scope of this utility model.

[0057] Preferably, such as Figures 1 to 8 As shown, the wire-concealing component 2 of this utility model includes a housing 21 and a cover 22. A receiving cavity 211 is formed in the housing 21. The top of the housing 21 is open. A first snap-fit ​​structure is provided on the housing 21. The cover 22 includes a plate-shaped body 221 and an annular insertion part 222 provided on the plate-shaped body 221. A second snap-fit ​​structure is provided on the annular insertion part 222. The annular insertion part 222 is inserted into the housing 21 from the top of the housing 21. The first snap-fit ​​structure and the second snap-fit ​​structure engage to snap-fit ​​and fix the cover 22 to the housing 21. The plate-shaped body 221 can cover the first mounting hole 11 or the second mounting hole 12.

[0058] For example, the housing 21 is a cylindrical structure, the plate-shaped body 221 of the cover 22 is circular, and the first mounting hole 11 and the second mounting hole 12 are also circular. The outer diameter of the housing 21 is smaller than the diameter of the first mounting hole 11 and the second mounting hole 12, so that it can pass through the first mounting hole 11 and the second mounting hole 12. The outer diameter of the plate-shaped body 221 of the cover 22 is larger than the diameter of the first mounting hole 11 and the second mounting hole 12, so that it can cover the first mounting hole 11 or the second mounting hole 12. The annular insertion portion 222 of the cover 22 extends vertically downward from the bottom surface of the plate-shaped body 221. The outer diameter of the annular insertion portion 222 is smaller than the inner diameter of the housing 21, so that it can be inserted into the housing 21 from the top of the housing 21. It is engaged with the second snap-fit ​​structure on the annular insertion portion 222 through the first snap-fit ​​structure on the housing 21, so as to snap and fix the cover 22 to the housing 21.

[0059] It should be noted that this utility model does not limit the specific structural form of the first snap-fit ​​structure and the second snap-fit ​​structure. For example, the first snap-fit ​​structure and the second snap-fit ​​structure can be set as a snap-fit ​​interface and a buckle, or they can be set as a snap-fit ​​interface and a claw, or they can be set as a snap-fit ​​groove and a snap-fit ​​block, etc. Such adjustments and changes to the specific structural form of the first snap-fit ​​structure and the second snap-fit ​​structure do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0060] Preferably, such as Figures 5 to 8 As shown, the first snap-fit ​​structure is a snap-fit ​​interface 214 formed on the housing 21. The annular insertion part 222 is provided with a third opening 2221. The first snap-fit ​​structure is a snap-fit ​​2222 provided in the third opening 2221. The bottom end of the snap-fit ​​2222 is connected to the bottom wall of the third opening 2221. The top end and the left and right sides of the snap-fit ​​2222 have gaps with the top wall and side wall of the third opening 2221, respectively. The top end of the snap-fit ​​2222 has a stepped surface 22221, and the stepped surface 22221 abuts against the top wall of the snap-fit ​​interface 214.

[0061] In other words, only the bottom end of the buckle 2222 is connected to the annular insertion part 222, while the rest of the buckle 2222 is not connected to the annular insertion part 222. With this setting, during the process of the annular insertion part 222 being inserted downward into the housing 21, the buckle 2222 is squeezed by the inner wall of the housing 21 and can deform towards the inner side of the annular insertion part 222, so that the annular insertion part 222 can be inserted into the housing 21 more easily. By setting a stepped surface 22221 at the top of the buckle 2222 to abut against the top wall of the card interface 214, the snapping effect is better. After the buckle 2222 snaps into the card interface 214, the bottom surface of the plate-shaped body 221 of the cover 22 also fits perfectly with the top of the housing 21.

[0062] Preferably, such as Figures 5 to 8 As shown, the number of card interfaces 214 is at least two and they are distributed at intervals along the circumference of the housing 21. The number of third openings 2221 is at least two and they are set corresponding to the card interfaces 214. The number of latches 2222 in the third openings 2221 is at least two and they are distributed at intervals along the circumference of the annular insertion portion.

[0063] For example, the housing 21 of the wire-concealing component 2 is provided with two card interfaces 214, which are arranged opposite to each other. The annular insertion portion 222 of the cover 22 is also provided with two third openings 2221, which are respectively arranged corresponding to the two card interfaces 214. Each third opening 2221 is provided with two buckles 2222, which are distributed circumferentially along the annular insertion portion 222. The two buckles 2222 in the third opening 2221 engage with the same card interface 214.

[0064] It should be noted that the number of card interface 214 and third opening 2221 is not limited to the two mentioned above. For example, it can also be set to three or more. Of course, this utility model preferably sets the number of card interface 214 and third opening 2221 to two. In addition, the number of buckles 2222 in the third opening 2221 is also not limited to the two mentioned above. For example, it can also be set to three or more. Of course, this utility model preferably sets the number of buckles 2222 in the third opening 2221 to two.

[0065] Preferably, such as Figure 7 and Figure 8 As shown, a slope 22222 is provided on the outer side wall of the buckle 2222, and the slope 22222 is inclined from top to bottom along the direction close to the inner side wall of the buckle 2222.

[0066] By providing a bevel 22222 on the outer side wall of the snap fastener 2222 that is inclined toward the inner side wall of the snap fastener 2222, the annular insertion part 222 is more easily inserted into the housing 21.

[0067] Preferably, such as Figures 5 to 8 As shown, the housing 21 is provided with a vertically extending first positioning guide structure, and the annular insertion part 222 is provided with a second positioning guide structure. During the installation of the cover 22, the first positioning guide structure and the second positioning guide structure cooperate to enable the first snap-fit ​​structure and the second snap-fit ​​structure to snap into place smoothly.

[0068] During the installation of the cover 22, the first and second positioning guide structures work together to ensure that the latch 2222 on the annular insertion part 222 smoothly engages with the locking interface 214 on the housing 21. The first and second positioning guide structures serve both positioning and guiding functions. Their positioning action aligns the latch 2222 on the annular insertion part 222 with the locking interface 214 on the housing 21. Their guiding action prevents the annular insertion part 222 from rotating during downward insertion, thus preventing circumferential displacement of the latch 2222.

[0069] It should be noted that this utility model does not limit the specific structural form of the first positioning guide structure and the second positioning guide structure. For example, the first positioning guide structure and the second positioning guide structure can be set as a structure in which the positioning guide groove and the positioning guide rib cooperate, or as a structure in which the positioning guide groove and the positioning guide block cooperate, or as a structure in which the positioning guide opening and the positioning guide post cooperate, and so on.

[0070] Preferably, such as Figures 6 to 8 As shown, the first positioning guide structure is a positioning guide groove 215, and the second positioning guide structure is a positioning guide rib 2223 adapted to the positioning guide groove 215. The top end of the positioning guide groove 215 is open, and the positioning guide rib 2223 can be inserted into the positioning guide groove 215 from the top end of the positioning guide groove 215 and slide along the length direction of the positioning guide groove 215.

[0071] For example, two positioning guide grooves 215 are provided on the inner side wall of the housing 21, and the two positioning guide grooves 215 are arranged opposite to each other. Two positioning guide ribs 2223 are provided on the outer side wall of the annular insertion part 222 of the cover 22, and the positioning guide ribs 2223 are arranged vertically. During the installation of the cover 22, the two positioning guide ribs 2223 are respectively inserted into the two positioning guide grooves 215.

[0072] It should be noted that the number of positioning guide grooves 215 and positioning guide ribs 2223 is not limited to the two mentioned above. For example, it can also be set to one or three. Such adjustments and changes to the specific number of positioning guide grooves 215 and positioning guide ribs 2223 do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0073] Preferably, such as Figure 4 and Figure 5 As shown, the wire-hiding component 2 of this utility model has a first opening 212 on its side wall that communicates with the receiving cavity 211. The first terminal connector 31 and the second terminal connector can pass through the first opening 212 and enter the receiving cavity 211. The bottom wall of the wire-hiding component 2 has a second opening 213 that communicates with the receiving cavity 211. The second opening 213 is configured to allow the first wire harness 32 and the second wire harness to pass through, but not allow the first terminal connector 31 and the second terminal connector to pass through. The bottom end of the first opening 212 communicates with the second opening 213.

[0074] For example, a first opening 212 is formed on the side wall of the housing 21, and a second opening 213 is formed on the bottom wall of the housing 21. The bottom end of the first opening 212 extends to the bottom end of the side wall, and one end of the second opening 213 extends to the edge of the bottom wall, communicating with the bottom end of the first opening 212. In the left-opening mode, both first terminal connectors 31 of the first terminal group enter the receiving cavity 211 through the first opening 212. The two first terminal connectors 31 are distributed vertically, and the first wire harness 32 connected to the two first terminal connectors 31 passes through the second opening 213. Since the second opening 213 does not allow the first terminal connectors 31 to pass through, the first terminal connectors 31 can be prevented from coming out of the receiving cavity 211 during the process of pulling the first terminal group upward by the wire-hiding member 2.

[0075] It should be noted that, without the first opening 212, the cover 22 can be opened, and the terminal connector can be inserted into the receiving cavity 211 of the housing 21 from the top of the housing 21. Of course, it is preferable to provide the first opening 212 on the side wall of the housing 21, which makes it easier to install and remove the terminal connector.

[0076] Preferably, such as Figure 4 and Figure 5 As shown, the first opening 212 includes an installation opening 2121 and an anti-detachment opening 2122 distributed vertically. The top and bottom ends of the anti-detachment opening 2122 communicate with the installation opening 2121 and the second opening 213, respectively. The installation opening 2121 allows the first terminal connector 31 and the second terminal connector to pass through. The anti-detachment opening 2122 is configured to allow the first wire harness 32 and the second wire harness to pass through but not allow the first terminal connector 31 and the second terminal connector to pass through.

[0077] By configuring the first opening 212 as an installation opening 2121 and an anti-detachment opening 2122 distributed vertically, it is beneficial to prevent the first terminal connector 31 and the second terminal connector from detaching from the receiving cavity 211. Specifically, taking the first terminal connector 31 as an example, after the first terminal connector 31 enters the receiving cavity 211 through the installation opening 2121, the first terminal connector 31 can be moved towards the bottom of the receiving cavity 211, so that at least a part of the first terminal connector 31 moves to a position corresponding to the anti-detachment opening 2122. Since the anti-detachment opening 2122 is small, the first terminal connector 31 cannot pass through it, thereby preventing the first terminal connector 31 from detaching from the receiving cavity 211.

[0078] Preferably, such as Figure 4 and Figure 5 As shown, the receiving cavity 211 includes a first cavity and a second cavity that are distributed vertically and communicate with each other. The mounting opening 2121 and the anti-detachment opening 2122 are both located at positions corresponding to the second cavity. The first cavity and the second cavity can respectively accommodate a first terminal connector 31 or a second terminal connector.

[0079] The first terminal block includes two first terminal connectors 31 (one positive and one negative), and the second terminal block includes two second terminal connectors (one positive and one negative). In the left-opening door mode, as shown... Figure 4 As shown, the two first terminal connectors 31 can be installed into the receiving cavity 211 in an up-down distribution manner, with the two first terminal connectors 31 located in the first cavity and the second cavity respectively; in the right-opening mode, the second terminal connectors can be installed into the receiving cavity 211 in an up-down distribution manner, with the two second terminal connectors 31 located in the first cavity and the second cavity respectively.

[0080] Taking the installation of the first terminal block as an example, one first terminal connector 31 can be first passed through the installation opening 2121 into the second cavity, and then the first terminal connector 31 can be moved toward the top of the receiving cavity 211 into the first cavity. Then another first terminal connector 31 can be passed through the installation opening 2121 into the second cavity, and then the first terminal connector 31 can be moved toward the bottom of the receiving cavity 211 a certain distance.

[0081] For example, the length of the first cavity is equal to or slightly less than the length of the first terminal connector 31, the length of the second cavity is slightly greater than the length of the first terminal connector 31, the length of the mounting opening 2121 and the length of the anti-detachment opening 2122 are both less than the length of the first terminal connector 31. When installing the first terminal connector 31, one end of the first terminal connector 31 is first inserted into the mounting opening 2121, and then the first terminal connector 31 is inserted obliquely into the receiving cavity 211.

[0082] Preferably, such as Figure 5 As shown, the anti-detachment opening 2122 includes a first part 21221 and a second part 21222 distributed vertically. The top end of the first part 21221 is connected to the bottom end of the installation opening 2121, the bottom end of the first part 21221 is connected to the top end of the second part 21222, and the bottom end of the second part 21222 is connected to the second opening 213. The first part 21221 and the second part 21222 are staggered along the circumference of the cable-tightening component 2.

[0083] By configuring the anti-detachment opening 2122 to include a first portion 21221 and a second portion 21222 distributed circumferentially, it is advantageous to confine the wire harness connected to the terminal connector within the second cavity.

[0084] Taking the first terminal connector 31 as an example, the first wire harness 32 of the first terminal connector 31 installed in the first cavity needs to pass through the second cavity. The size of the installation opening 2121 and the anti-detachment opening 2122 communicating with the second cavity are both larger than the diameter of the first wire harness 32. Since the first part 21221 and the second part 21222 of the anti-detachment opening 2122 are staggered in the circumferential direction, if the first wire harness 32 wants to come out of the second cavity, it needs to go around the first part 21221 of the anti-detachment opening 2122 to come out, which increases the difficulty of the first wire harness 32 coming out and helps to prevent the first wire harness 32 from coming out of the second cavity.

[0085] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0086] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A door device, characterized in that, The door assembly includes a door body (1), a wire concealment component (2), and an electric heating component installed on the door body (1). The door body (1) has a first accommodating space and a second accommodating space inside. The top of the door body (1) is provided with a first mounting hole (11) and a second mounting hole (12) that communicate with the first accommodating space and the second accommodating space, respectively. The first mounting hole (11) and the second mounting hole (12) are respectively located near the left and right sides of the door body (1). The electric heating component has a first terminal group and a second terminal group arranged in parallel. The first terminal group is located in the first receiving space and can extend from the first mounting hole (11), and the second terminal group is located in the second receiving space and can extend from the second mounting hole (12). The wire-concealing component (2) is selectively inserted into the first receiving space from the first mounting hole (11) or into the second receiving space from the second mounting hole (12). When the wire-concealing component (2) is inserted into the first receiving space from the first mounting hole (11), the first terminal block is detachably connected to the wire-concealing component (2), and the wire-concealing component (2) covers the first mounting hole (11). When the wire-concealing component (2) is inserted into the second receiving space from the second mounting hole (12), the second terminal block is detachably connected to the wire-concealing component (2), and the wire-concealing component (2) covers the second mounting hole (12).

2. The door apparatus according to claim 1, wherein The wire-concealing component (2) has a receiving cavity (211), the first terminal group includes a first terminal connector (31) and a first wire harness (32), the second terminal group includes a second terminal connector and a second wire harness, and the first terminal connector (31) or the second terminal connector is located in the receiving cavity (211).

3. The door apparatus according to claim 2, wherein The wire-hiding component (2) has a first opening (212) on its side wall that communicates with the receiving cavity (211). The first terminal connector (31) and the second terminal connector can pass through the first opening (212) into the receiving cavity (211). The wire-hiding component (2) has a second opening (213) on its bottom wall that communicates with the receiving cavity (211). The second opening (213) communicates with the bottom end of the first opening (212). The second opening (213) is configured to allow the first wire harness (32) and the second wire harness to pass through, but not allow the first terminal connector (31) and the second terminal connector to pass through.

4. The door assembly of claim 3, wherein, The first opening (212) includes an installation opening (2121) and an anti-detachment opening (2122) distributed vertically. The top and bottom ends of the anti-detachment opening (2122) are respectively connected to the installation opening (2121) and the second opening (213). The installation opening (2121) allows the first terminal connector (31) and the second terminal connector to pass through. The anti-detachment opening (2122) is configured to allow the first wire harness (32) and the second wire harness to pass through but not allow the first terminal connector (31) and the second terminal connector to pass through.

5. The door assembly of claim 4, wherein, The receiving cavity (211) includes a first cavity and a second cavity that are distributed vertically and communicate with each other. The mounting opening (2121) and the anti-detachment opening (2122) are both located at positions corresponding to the second cavity. The first cavity and the second cavity can respectively accommodate one first terminal connector (31) or one second terminal connector.

6. The door assembly of claim 5, wherein, The anti-detachment opening (2122) includes a first part (21221) and a second part (21222) distributed vertically. The top end of the first part (21221) is connected to the bottom end of the installation opening (2121), the bottom end of the first part (21221) is connected to the top end of the second part (21222), and the bottom end of the second part (21222) is connected to the second opening (213). The first part (21221) and the second part (21222) are staggered along the circumference of the wire-hiding component (2).

7. The door assembly of claim 2, wherein, The wire-concealing component (2) includes a housing (21) and a cover (22). The receiving cavity (211) is formed in the housing (21). The top of the housing (21) is open. A first snap-fit ​​structure is provided on the housing (21). The cover (22) includes a plate-shaped body (221) and an annular insertion part (222) provided on the plate-shaped body (221). A second snap-fit ​​structure is provided on the annular insertion part (222). The annular insertion part (222) is inserted into the housing (21) from the top of the housing (21). The first snap-fit ​​structure and the second snap-fit ​​structure engage to snap-fit ​​and fix the cover (22) to the housing (21). The plate-shaped body (221) can cover the first mounting hole (11) or the second mounting hole (12).

8. The door assembly of claim 7, wherein, The first snap-fit ​​structure is a snap-fit ​​interface (214) formed on the housing (21). A third opening (2221) is provided on the annular insertion portion (222). The first snap-fit ​​structure is a snap-fit ​​buckle (2222) disposed within the third opening (2221). The bottom end of the snap-fit ​​buckle (2222) is connected to the bottom wall of the third opening (2221). The top end and left and right sides of the snap-fit ​​buckle (2222) have gaps with the top wall and side wall of the third opening (2221), respectively. The top end of the snap-fit ​​buckle (2222) has a stepped surface (22221), which abuts against the top wall of the snap-fit ​​interface (214); and / or The housing (21) is provided with a vertically extending first positioning guide structure, and the annular insertion part (222) is provided with a second positioning guide structure. During the installation of the cover (22), the first positioning guide structure and the second positioning guide structure cooperate to enable the first snap-fit ​​structure and the second snap-fit ​​structure to snap into place smoothly.

9. The door assembly of claim 8, wherein, The number of card interfaces (214) is at least two and they are distributed circumferentially along the housing (21). The number of third openings (2221) is at least two and they are corresponding to the card interfaces (214). The number of latches (2222) in the third openings (2221) is at least two and they are distributed circumferentially along the annular insertion portion (222); and / or The outer wall of the buckle (2222) is provided with a bevel (22222), which slopes from top to bottom along the direction close to the inner wall of the buckle (2222); and / or The first positioning guide structure is a positioning guide groove (215), and the second positioning guide structure is a positioning guide rib (2223) adapted to the positioning guide groove (215). The top end of the positioning guide groove (215) is open, and the positioning guide rib (2223) can be inserted into the positioning guide groove (215) from the top end of the positioning guide groove (215) and slide along the length direction of the positioning guide groove (215).

10. A cold box characterized in that, The refrigerator includes the door device according to any one of claims 1 to 9.

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