CN112983130A

CN112983130A - Door assembly and refrigerator

Info

Publication number: CN112983130A
Application number: CN201911215793.8A
Authority: CN
Inventors: 刘小凯; 肖北阳; 邵啟鹏
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2021-06-18
Anticipated expiration: 2039-12-02
Also published as: CN112983130B

Abstract

The invention relates to the field of opening and closing doors, and provides a door assembly and a refrigerator. The door subassembly includes main door and auxiliary door, and the auxiliary door rotates to be connected on the main door, still includes automatically controlled module and locates the automatically controlled locking mechanism in the main door, and automatically controlled locking mechanism includes: the electric control pull rod assembly is electrically connected with the electric control module and comprises a telescopic pull rod; the first rotating piece is pivotally connected with the main door and is provided with a driven end and an active drive end connected with the telescopic pull rod; the second rotating piece is pivotally connected with the main door through the first resetting piece and is provided with a lock tongue and a lock body; the auxiliary door is provided with a lock catch, the auxiliary door is closed, the lock catch pushes the second rotating piece to rotate to drive the lock body to be locked with the driven end, and the lock tongue is locked with the lock catch; the electric control module is triggered, the telescopic pull rod moves to drive the first rotating member to rotate, the driven driving end is driven to unlock the lock body, and the lock tongue and the lock catch are unlocked. The invention can avoid the auxiliary door from separating from the main door when opening/closing the main door, and the auxiliary door is opened to open the main door.

Description

Door assembly and refrigerator

Technical Field

The invention relates to the technical field of door opening and closing, in particular to a door assembly and a refrigerator.

Background

In order to meet the requirement of users on the capacity of the refrigerator, more than 500L of refrigerators tend to be popularized. The larger the refrigerator is, the heavier the door body is, and the larger the force required for opening the door is. In order to solve the problems of large door opening force, optimized storage and the like, the industry makes the following attempts on refrigerator door bodies, particularly refrigerating chamber door bodies: the refrigerator door body is split into a main door and an auxiliary door, the main door is provided with an opening, and the auxiliary door can close and open the opening.

The existing solutions are prone to some problems with respect to the state in which the auxiliary door is closed or opened with respect to the main door. For example: the main door and the auxiliary door are in a magnetic type, the main door and the auxiliary door are sealed and matched with the refrigerator body in a conventional mode, namely, a metal sheet is installed at the opening position of the main door, and the auxiliary door is provided with a sealing strip with a magnetic strip. In the mode, the problem that the force for opening the auxiliary door is large can easily occur if the suction force between the main door and the auxiliary door is large, and the main door is also pulled open when the auxiliary door is opened; if the suction force between the main door and the auxiliary door is small, the auxiliary door is separated from the main door when the main door is opened/closed.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, embodiments of the present invention provide a door assembly capable of avoiding a problem that an auxiliary door is separated from a main door when the main door is opened/closed, and the main door is opened by opening the auxiliary door.

The embodiment of the invention also provides the refrigerator.

According to an embodiment of an aspect of the present invention, the door assembly includes a main door and an auxiliary door, the auxiliary door is rotatably connected to the main door, the door assembly further includes an electronic control module and an electronic control locking mechanism disposed in the main door, the electronic control locking mechanism includes:

the electric control pull rod assembly is electrically connected with the electric control module and comprises a telescopic pull rod;

the first rotating piece is pivotally connected with the main door and is provided with a driven end and an active driving end connected with the telescopic pull rod;

the second rotating piece is pivotally connected with the main door through the first resetting piece and is provided with a lock tongue and a lock body;

the auxiliary door is provided with a lock catch, and based on the closing operation of the auxiliary door, the lock catch pushes the second rotating piece to rotate, so that the lock body is driven to be locked with the passive driving end, and the lock tongue is locked with the lock catch;

based on the door opening operation of the electronic control module, the telescopic pull rod moves and drives the first rotating piece to rotate, the driven driving end and the lock body are driven to be unlocked, and the lock tongue and the lock catch are unlocked under the reset action of the first reset piece.

According to the door assembly provided by the embodiment of the invention, when the auxiliary door is closed, the lock catch pushes the second rotating piece to rotate and drives the lock body to be locked with the passive driving end, and meanwhile, the lock tongue is locked with the lock catch, so that the main door and the auxiliary door are reliably connected through double mechanical locking between the auxiliary door and the main door, therefore, when the main door is opened or closed, the auxiliary door cannot be separated from the main door, and the problem that the auxiliary door is separated from the main door when the main door is opened/closed is avoided; when the auxiliary door needs to be opened, the electronic control module is triggered to drive the telescopic pull rod to move, so that the first rotating piece rotates and drives the passive driving end to be unlocked with the lock body, meanwhile, the lock tongue is unlocked with the lock catch under the reset action of the first reset piece, the lock body applies external force to the lock catch to open the auxiliary door in the opening direction of the auxiliary door in the reset process of the first reset piece to bounce the auxiliary door, and the main door receives inward reaction force at the moment so that the main door cannot be opened when the auxiliary door is opened.

According to one embodiment of the present invention, the first rotating member is configured with a first rotating portion, the active driving end is located at one side of the first rotating portion, and the passive driving end is located at the other side of the first rotating portion.

According to an embodiment of the present invention, the second rotating member is configured with a second rotating portion, the lock tongue and the lock body extend to the same side along the second rotating portion, and the lock tongue and the lock body are oppositely arranged at a spacing.

According to one embodiment of the invention, the lock body has a length greater than a length of the deadbolt.

According to an embodiment of the present invention, the first reset member is a torsion spring, one end of the torsion spring is connected to the second rotating portion, and the other end of the torsion spring is connected to the main door.

According to an embodiment of the present invention, the first rotating portion is pivotally connected to the main door through a first rotating shaft, and the active driving end and the passive driving end are respectively disposed at two sides of an axis of the first rotating portion in a radial direction.

According to an embodiment of the invention, the electrically controlled lever assembly further comprises:

the electric control main body is fixed in the main door, an axial sliding hole is formed in one side, facing the first rotating piece, of the electric control main body, and an electrified coil is arranged outside the axial sliding hole of the electric control main body;

the telescopic pull rod is arranged in the axial sliding hole in a penetrating mode through the second resetting piece;

the electrified coil is electrically connected with the electric control module.

According to an embodiment of the present invention, the second restoring member is a compression spring, one end of the compression spring is sleeved on the telescopic pull rod, and the other end of the compression spring is fixedly connected to the bottom of the axial sliding hole.

According to one embodiment of the invention, the active drive end is configured with an active driver, which is connected to the telescopic link.

According to one embodiment of the invention, the bottom of the telescopic pull rod is provided with a connecting hole, the driving deflector rod penetrates through the connecting hole, and the aperture of the connecting hole is larger than the outer diameter of the driving deflector rod;

the passive driving end is provided with a lock hook matched with the lock body.

According to one embodiment of the invention, the electronic control module comprises a control board and a touch key electrically connected with the control board, the control board is installed in the main door, and the touch key is arranged on the outer surface of the main door.

According to an embodiment of the present invention, the door further comprises a mechanical unlocking mechanism disposed in the main door, the mechanical unlocking mechanism comprises:

the first sliding block is provided with a first sliding matching surface;

the second sliding block is provided with a second sliding matching surface in sliding matching with the first sliding matching surface, and the second sliding block is provided with a top block extending towards the first rotating piece;

the auxiliary door is further provided with a button, the button is provided with an extension section for pressing the first sliding block, a button reset piece is sleeved outside the extension section, one end of the button reset piece is abutted against the inner wall of the auxiliary door, and the other end of the button reset piece is abutted against the inner wall of the button;

based on the pressing operation of the button, the ejector block jacks up the active driving end and pushes the first rotating piece to rotate, the passive driving end and the lock body are driven to be unlocked, and the lock tongue and the lock catch are unlocked under the reset action of the first reset piece.

According to one embodiment of the invention, the mechanical unlocking mechanism further comprises:

the fixing piece is fixed between the second sliding block and the first rotating piece and is provided with a fixing block fixed in the main door and a guide rod extending towards the second sliding block along the fixing block;

one side of the second sliding block, which is positioned on the top block, is provided with a guide hole;

the guide rod is connected with the guide hole through a sliding block resetting piece.

According to one embodiment of the invention, the electrically controlled locking mechanism and the mechanical unlocking mechanism are both arranged at the opening and closing end of the main door.

According to one embodiment of the present invention, the opening and closing end of the main door is configured with a first convex portion extending in a length direction of the main door, and the opening and closing end of the auxiliary door is configured with an opening portion that avoids the first convex portion and a second convex portion extending in an extending direction of the first convex portion; the electric control locking mechanism and the mechanical unlocking mechanism are arranged in the first convex part of the main door, and the button is arranged on the second convex part.

According to one embodiment of the present invention, the outer surfaces of the first and second protrusions are flush with the outer surface of the main door, and the outer side surfaces of the first and second protrusions are flush with the outer side surface of the opening/closing end of the main door.

According to one embodiment of the invention, the electronic control module is arranged on the first convex part.

According to one embodiment of the invention, the door assembly is a refrigerator door assembly.

According to another aspect of the present invention, a refrigerator includes the door assembly.

The refrigerator provided by the embodiment of the invention comprises the door assembly, has all the advantages of the door assembly and is not described again.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic axial cross-sectional view of a door assembly of an embodiment of the present invention through an electrically controlled opening and closing mechanism and a mechanical opening and closing mechanism;

FIG. 2 is an enlarged schematic view at I of FIG. 1;

FIG. 3 is a schematic perspective view of the electrically controlled opening/closing mechanism and the mechanical opening/closing mechanism of FIG. 2;

FIG. 4 is a schematic view of a first rotating member in a door assembly in accordance with an embodiment of the present invention;

FIG. 5 is a schematic view of a second rotating member in the door assembly in accordance with the present invention;

FIG. 6 is a schematic view of a door assembly after electronic control unlocking according to an embodiment of the present invention;

FIG. 7 is a schematic view of a door assembly of an embodiment of the present invention in a mechanically unlocked position;

FIG. 8 is a schematic view of a door assembly according to an embodiment of the present invention after opening the auxiliary door;

FIG. 9 is a schematic view of the door assembly of FIG. 8 after closing of the auxiliary door;

FIG. 10 is a schematic view of another door assembly of the present invention with the auxiliary door open;

fig. 11 is a schematic view of the door assembly of fig. 10 after closing of the auxiliary door.

Reference numerals:

100: a door assembly; 110: a main door; 111: a first convex portion; 112: an electrically controlled drawbar assembly; 112.1: an electric control main body; 112.2: a second reset member; 112.3: a telescopic pull rod; 112.3.1: connecting holes; 113: a first rotating member; 113.1: an active driving end; 113.2: a passive drive end; 113.2.1: a latch hook; 113.3: a first rotating section; 114: a second rotating member; 114.1: a lock body; 114.2: a latch bolt; 114.3: a second rotating part; 115: a first reset member; 116: an electronic control module; 117: a slider reset; 118: a second slider; 118.1: a top block; 118.2: a guide hole; 118.3: a guide bar; 118.4: a fixed block; 119: a first slider; 120: an auxiliary door; 121: a second convex portion; 122: locking; 123: a button; 123.1: an extension section; 124: a button reset member.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It should be noted that the embodiment of the present invention is described by taking a refrigerator as an example only. It should be understood that the primary and secondary doors may be provided in refrigerated cabinets, merchandisers, snack cases, and even display cases.

As shown in fig. 1 to 3, the door assembly 100 provided by the embodiment of the present invention includes a main door 110 and an auxiliary door 120, the main door 110 and the auxiliary door 120 form the door assembly 100 together after being closed, and the auxiliary door 120 is rotatably connected to the main door 110, it can be understood that the main door 110 is provided with an opening, the auxiliary door 120 is rotatably connected to the opening of the main door 110 for opening or closing the opening of the main door 110, where the "rotational connection" may be a hinge connection, and one end of the auxiliary door 120, which is hinged to the main door 110, is a connection end, and the other end is an opening and closing end, so that the auxiliary door 120 and the main door 110 can be opened and closed conveniently.

The door assembly 100 of the present embodiment further includes an electronic control module 116 and an electronic control locking mechanism disposed in the main door 110, wherein the electronic control locking mechanism includes an electronic control lever assembly 112, a first rotating member 113 and a second rotating member 114. Wherein:

the electric control pull rod assembly 112 is electrically connected with the electric control module 116, the electric control module 116 powers on the electric control pull rod assembly 112, the electric control pull rod assembly 112 comprises a telescopic pull rod 112.3, and the electric control module 116 controls the telescopic pull rod 112.3 to extend and retract.

The first rotating member 113 is pivotally connected to the main door 110, that is, the first rotating member 113 is rotatably connected to the main door 110, and the first rotating member 113 has a passive driving end 113.2 and an active driving end 113.1 connected to the telescopic rod 112.3, so that the active driving end 113.1 is driven to rotate by the telescopic rod 112.3 to drive the passive driving end 113.2 to rotate.

The second rotating member 114 is pivotally connected to the main door 110 through the first resetting member 115, and has a latch bolt 114.2 and a lock body 114.1, that is, the second rotating member 114 is rotatably connected to the main door 110 and can be reset through the first resetting member 115, where resetting is that the second rotating member 114 rotates from an initial position to a specified position under the action of an external force, and rotates from the specified position to the initial position again by virtue of a resetting force of the first resetting member 115 after the external force disappears, for example, the initial position is a locked position, and the specified position is an unlocked position, and the second rotating member 114 is switched between the locked position and the unlocked position through the first resetting member 115.

The auxiliary door 120 is provided with a latch 122, and specifically, the latch 122 has a slot feature that the latch bolt 114.2 can be buckled, wherein, upon the closing operation of the auxiliary door 120, that is, when the auxiliary door 120 is closed, the latch 122 pushes the second rotating member 114 to rotate, when the second rotating member 114 rotates, the lock body 114.1 thereon rotates simultaneously with the latch bolt 114.2, the lock body 114.1 rotates to be locked with the passive driving end 113.2 of the first rotating member 113 and the latch bolt 114.2 rotates to be locked with the latch 122, so as to lock the auxiliary door 120 on the main door 110.

Moreover, after the auxiliary door 120 is locked on the main door 110, no redundant movable stroke exists, the sealing between the auxiliary door 120 and the main door 110 is reliable, the sealing between the auxiliary door 120 and the opening of the main door 110 is good, and cold leakage is avoided.

Based on the door opening operation of the triggering electronic control module 116, that is, when the auxiliary door 120 needs to be opened, the triggering electronic control module 116 drives the telescopic rod 112.3 to move and drive the first rotating member 113 to rotate, and drives the driven driving end 113.2 to rotate in the opposite direction to unlock with the lock body 114.1, and the latch bolt 114.2 rotates to unlock with the latch 122 under the reset action of the first reset member 115, so as to automatically flick the auxiliary door 120, as shown in fig. 6. The problem of large opening force when opening the auxiliary door 120 is avoided.

According to the door assembly 100 provided by the embodiment of the invention, when the auxiliary door 120 is closed, the lock catch 122 pushes the second rotating part 114 to rotate and drive the lock body 114.1 to be locked with the passive driving end 113.2, and meanwhile, the lock tongue 114.2 is locked with the lock catch 122, so that the reliable connection between the main door 110 and the auxiliary door 120 is ensured through the double mechanical locking between the auxiliary door 120 and the main door 110, and therefore, when the main door 110 is opened or closed, the problem that the auxiliary door 120 is separated from the main door 110 is avoided; when the auxiliary door 120 needs to be opened, the electronic control module 116 is triggered to drive the telescopic pull rod 112.3 to move, so that the first rotating member 113 rotates and drives the driven driving end 113.2 to unlock with the lock body 114.1, meanwhile, the bolt 114.2 rotates to unlock with the latch 122 under the reset action of the first reset member 115, in the reset process of the first reset member 115, due to the existence of the rotation reset force, the lock body 114.1 applies an external force to the latch 122 in the opening direction of the auxiliary door 120 to automatically flick the auxiliary door 120, at this time, the main door 110 is subjected to a reaction force in the opposite direction, and the direction of the reaction force is the opposite direction of the opening direction of the auxiliary door 120, so that the main door 110 cannot be taken open when the auxiliary door 120 is opened.

In an embodiment of the present invention, as shown in fig. 4, the first rotating member 113 is configured with a first rotating portion 113.3, the active driving end 113.1 is located at one side of the first rotating portion 113.3, and the passive driving end 113.2 is located at the other side of the first rotating portion 113.3, that is, the active driving end 113.1 and the passive driving end 113.2 are respectively disposed at two sides of the first rotating portion 113.3.

In an embodiment of the present invention, as shown in fig. 5, the second rotating member 114 is configured with a second rotating portion 114.3, and the bolt 114.2 and the lock body 114.1 extend to the same side along the second rotating portion 114.3, that is, the bolt 114.2 and the lock body 114.1 are located at the same side of the second rotating portion 114.3, the bolt 114.2 and the lock body 114.1 are oppositely disposed at a certain interval, and specifically, the joints of the bolt 114.2 and the lock body 114.1 and the second rotating portion 114.3 form an arc transition surface to ensure smooth and smooth rotation.

In an embodiment of the present invention, the length of the lock body 114.1 is greater than that of the lock tongue 114.2, and the lock body 114.1 and the lock tongue 114.2 extend toward the same side, for example, the lock body 114.1 and the lock tongue 114.2 may be arranged in parallel or at an acute angle. In addition, specifically, the lock body 114.1 is disposed opposite to the latch bolt 114.2 on a side close to the passive driving end 113.2 of the first rotating member 113, and the latch bolt 114.2 is disposed opposite to the lock body 114.1 on a side close to the buckle 122. When the shackle 122 moves towards the second rotating member 114, the shackle 122 first contacts with the inner side surface of the lock body 114.1, at this time, the shackle 122 is located between the lock body 114.1 and the bolt 114.2, and pushes the lock body 114.1 to rotate, and the free end of the lock body 114.1 presses down the passive driving end 113.2 until the free end of the lock body 114.1 is buckled with the passive driving end 113.2 and locked; during the rotation of the lock body 114.1, the bolt 114.2 rotates towards the shackle 122 until the bolt 114.2 snaps into the shackle 122 to lock the two.

In an embodiment of the present invention, the first returning member 115 may be a torsion spring, one end of which is connected to the second rotating part 114.3 and the other end of which is connected to the main door 110, so that the second rotating part 114 has a rotating returning force. Further, in order to facilitate the installation of the torsion spring, the torsion spring may be sleeved in the axial through hole of the second rotating portion 114.3.

Of course, the first reset member 115 may be other rotary reset members capable of performing the same function as the torsion spring.

In order to facilitate the rotation of the first rotating member 113, according to an embodiment of the present invention, the first rotating portion 113.3 is pivotally connected to the main door 110 through a first rotating shaft, for example, both axial ends of the first rotating shaft are fixed on the inner wall of the main door 110, the first rotating portion 113.3 is provided with an axial through hole, the first rotating member 113 is sleeved on the first rotating shaft through the axial through hole, so that the first rotating member 113 can rotate around the main door 110, the active driving end 113.1 and the passive driving end 113.2 are respectively disposed on both radial sides of the axial center of the first rotating portion 113.3, that is, the plane of the active driving end 113.1 and the passive driving end 113.2 is perpendicular to the axial center of the first rotating portion 113.3, so that when the first rotating portion 113.3 rotates, the active driving end 113.1 and the passive driving end 113.2 are located on both sides of the axial center of the first rotating portion.

According to an embodiment of the present invention, the electrically controlled lever assembly 112 may further include an electrically controlled main body 112.1 and a second restoring member 112.2.

Specifically, the electric control body 112.1 is fixed in the main door 110, the electric control body 112.1 may be a casing, a box or other objects convenient to fix, an axial sliding hole is formed in one side of the electric control body 112.1 facing the first rotating member 113, the axial sliding hole is a blind hole, an electrified coil is arranged outside the axial sliding hole of the electric control body 112.1, when the electrified coil is electrified, a magnetic field is generated on the telescopic pull rod 112.3 to drive the telescopic pull rod 112.3 to contract, of course, in order that the telescopic pull rod 112.3 can interact with the electrified coil, the telescopic pull rod 112.3 may be made of a magnet, or may be made of a metal material such as stainless steel.

The telescopic pull rod 112.3 is arranged in the axial sliding hole in a penetrating mode through the second reset piece 112.2, so that reset force is provided for the telescopic pull rod 112.3, namely when the telescopic pull rod 112.3 moves inwards relative to the axial sliding hole, the second reset piece 112.2 provides outward acting force for the telescopic pull rod 112.3, and the telescopic pull rod 112.3 is enabled to reset.

The energizing coil is electrically connected to the electronic control module 116, where "electrically connected" indicates a connection relationship between the energizing coil and the electronic control module 116, and does not indicate that both are always in an energized state, for example, when the electronic control module 116 is energized, the energizing coil is energized, and when the electronic control module 116 is not energized, the energizing coil is in a de-energized state. In order to operate the electronic control module 116 conveniently, the electronic control module 116 includes a control panel and a touch key electrically connected to the control panel, the control panel is installed in the main door 110 and electrically connected to the power coil, the touch key is disposed on an outer surface of the main door 110, where the outer surface of the main door 110 is a surface of the main door 110 facing a user, the touch key is pressed to provide a trigger signal to the control panel, and the control panel provides power to the power coil.

Here, the phrase "the control panel is installed in the main door 110" may include that the control panel is installed in a cavity of the main door 110, or that the control panel is embedded in a case of the main door 110, as long as it is ensured that the installation position of the control panel is hidden and the main door 110 is not easily exposed.

According to an embodiment of the present invention, the second reset piece 112.2 may be a compression spring, one end of the compression spring is sleeved on the telescopic pull rod 112.3, the other end of the compression spring is fixedly connected to the bottom of the axial sliding hole, one end of the telescopic pull rod 112.3 extends out of the axial sliding hole, the extending end of the telescopic pull rod 112.3 can extend and retract relative to the axial sliding hole, when the telescopic pull rod 112.3 contracts relative to the axial sliding hole under the suction force of the energized coil, the compression spring is in a compressed state, and when the energized coil is powered off, the compressed compression spring is released, so as to push the telescopic pull rod 112.3 to extend relative to the axial sliding hole.

In another embodiment, the electrically controlled pull rod assembly 112 may further include a torsion spring disposed in the first rotating portion 113.3 instead of the compression spring, one end of the torsion spring is connected to the main door 110, and the other end of the torsion spring is connected to the first rotating portion 113.3, and since the driving end 113.1 is connected to the telescopic pull rod 112.3, the torsion spring may provide a restoring force for the telescopic pull rod 112.3, so as to facilitate pulling the telescopic pull rod 112.3 to extend out of the axial sliding hole when the power coil is powered off.

According to one exemplary embodiment of the present invention, the active drive 113.1 is configured with an active lever, which is connected to the telescopic rod 112.3.

In order to facilitate connection with the driving shift lever, a connection hole 112.3.1 is formed in the bottom of the telescopic pull rod 112.3, the driving shift lever penetrates through the connection hole 112.3.1 to be connected with the telescopic pull rod 112.3, and the aperture of the connection hole 112.3.1 is larger than the outer diameter of the driving shift lever, so that the driving shift lever has a certain movement allowance in the connection hole 112.3.1, and when the telescopic pull rod 112.3 makes reciprocating linear motion, the driving shift lever makes rotational motion, and the two do not interfere with each other.

Of course, the connection mode between the telescopic pull rod 112.3 and the driving shift lever is not limited to the above list, and an opening may be provided at the end of the telescopic pull rod 112.3, and the driving shift lever is inserted into the opening, it can be understood that the size of the opening needs to ensure that the driving shift lever cannot be disengaged during the rotation process, and in addition, the connection end of the telescopic pull rod 112.3 and the driving shift lever is connected through a rotating shaft, and the movement of the telescopic pull rod 112.3 can also be realized to drive the driving shift lever to rotate. It should be noted that the telescopic rod 112.3 and the driving lever may also be connected by any other suitable connection method.

The passive driving end 113.2 is configured with a locking hook 113.2.1 matching with the locking hook 114.1, the end of the locking hook 114.1 can be buckled at the locking hook 113.2.1, so as to ensure the reliable connection after the two are buckled, and in addition, in particular, in order to facilitate the insertion of the locking hook 113.2.1 into the locking hook 114.1, the end of the locking hook 114.1 can be provided with a cutting surface, so that a plug pin part which facilitates the insertion of the locking hook 113.2.1 is formed at the end of the locking hook 114.1.

In addition, in order to open the auxiliary door 120 even in case of power failure, according to an embodiment of the present invention, the auxiliary door further includes a mechanical unlocking mechanism disposed in the main door 110, and in this embodiment, for example, the mechanical unlocking mechanism is disposed below the electrically controlled locking mechanism, and the mechanical unlocking mechanism includes:

the first slider 119 is provided with a first sliding engagement surface, and the first sliding engagement surface may be provided on one side of the first slider 119.

The second slide block 118 is provided with a second sliding matching surface in sliding matching with the first sliding matching surface, when the first slide block 119 moves, the first sliding matching surface pushes the second sliding matching surface to move along the first sliding matching surface, so that the second slide block 118 moves upwards, the second slide block 118 is provided with a top block 118.1 extending towards the direction of the first rotating member 113, and when the top block 118.1 moves to the top driving end 113.1, the first rotating member 113 rotates.

Still be equipped with the button 123 on the auxiliary door 120, the button 123 is equipped with the extension 123.1 that is used for pressing first slider 119, makes first slider 119 produce the displacement through extension 123.1, and further, extension 123.1 overcoat is equipped with button reset 124, and the one end butt of button reset 124 is assisted the inner wall of door 120, and the other end butt button 123's inner wall.

Based on the pressing operation of the button 123, as shown in fig. 2 and 7, the extending section 123.1 of the button 123 pushes the first slider 119 to move, the first slider 119 pushes the second slider 118 to move, until the top block 118.1 jacks up the active driving end 113.1 and pushes the first rotating member 113 to rotate, the passive driving end 113.2 is driven to unlock the lock body 114.1, and the latch bolt 114.2 is unlocked from the latch 122 under the resetting action of the first resetting member 115, so as to open the auxiliary door 120. When the button 123 is released, the extending section 123.1 returns to the original position under the action of the button resetting piece 124, the acting force of the extending section 123.1 on the first slide block 119 disappears, the top block 118.1 moves downwards along with the second slide block 118, and the first rotating piece 113 is reset under the action of the first resetting piece 115.

It should be noted here that during the process of opening the auxiliary door 120, the lock body 114.1 is rotated by the rotating reset force of the first reset member 115, and the lock body 114.1 applies an outward pushing force to the lock catch 122 when rotating, so that the auxiliary door 120 springs outward, at this time, the main door 110 is subjected to a reaction force opposite to that of the auxiliary door 120, so that the main door 110 is not opened when the auxiliary door 120 is opened.

In addition, it should be noted that the auxiliary door 120 can be opened by using a mechanical opening and closing mechanism, i.e., the push button 123, in a state where the electronic control module 116 is powered on or powered off or the electronic control module fails. Thereby providing the user with an alternative way of opening the auxiliary door 120 and improving the user experience.

In one embodiment of the present invention, as shown in fig. 3, the mechanical unlocking mechanism further includes a fixing member.

Specifically, the fixed member is fixed between the second slider 118 and the first rotating member 113, the fixed member is provided with a fixed block 118.4 fixed in the main door 110 and a guide rod 118.3 extending along the fixed block 118.4 toward the second slider 118, one side of the second slider 118, which is located at the top block 118.1, is provided with a guide hole 118.2, the guide rod 118.3 is connected with the guide hole 118.2 through a slider reset member 117, so as to guide the movement of the second slider 118, and a reset force is provided for the second slider 118 through the slider reset member 117, after the button 123 is released, the second slider 118 is reset, and the top block 118.1 is separated from the active driving end 113.1. The slider reset 117 may be a compression spring.

Of course, it is understood that the location of the fasteners is not limited to the above list, and the fasteners may also be located below the top block 118.1 or other suitable locations, which are not listed here.

According to the lever principle, both the electrically controlled locking mechanism and the mechanical unlocking mechanism are provided at the opening and closing end of the main door 110, so that the auxiliary door 120 can be subjected to a large force when being opened, thereby facilitating the opening of the auxiliary door 120.

According to an embodiment of the present invention, as shown in fig. 8 to 11, in order to facilitate the arrangement of the electrically controlled locking mechanism and the mechanical unlocking mechanism, the opening and closing end of the main door 110 is configured with a section of the first protrusion 111 extending along the length direction of the main door 110, and the first protrusion 111, which has a length smaller than the length of the main door 110, may extend to the vicinity of the middle of the main door 110. In order that the auxiliary door 120 does not interfere with the first protrusion 111 after being closed and is better matched with the first protrusion 111, the opening and closing end of the auxiliary door 120 is constructed with an opening part which avoids the first protrusion 111, and in order to be matched with the first protrusion 111 of the main door 110 and ensure the sealing performance and the appearance consistency of the door assembly 100, the auxiliary door 120 is provided with a second protrusion 121 which extends along the extending direction of the first protrusion 111; the electrically controlled locking mechanism and the mechanical unlocking mechanism are both disposed in the first protrusion 111 of the main door 110, and the button 123 is disposed on the second protrusion 121.

The control panel can be arranged in the first convex part 111, and the touch panel is arranged on the outer surface of the first convex part 111, so that the operation of an operator is facilitated. Of course, when the control board is connected to the power coil by wireless signals, the control board may be disposed on the second protrusion 121 or other positions of the door assembly 100, and in this case, the touch panel may be disposed on the outer surface of the second protrusion 121 or the outer surfaces of other positions.

According to an embodiment of the present invention, in order to make the exterior configuration of the door assembly 100 compact and consistent, the outer surfaces of the first and

second protrusions

111 and 121 are flush with the outer surface of the main door 110, and the outer surfaces of the first and

second protrusions

111 and 121 are flush with the outer surface of the open/close end of the main door 110.

The door assembly 100 may be a refrigerator door assembly according to one embodiment of the present invention, although other door assemblies are possible.

The embodiment of the invention also provides a refrigerator comprising the door assembly. The refrigerator provided by the embodiment of the invention, including the door assembly 100, has all the advantages of the door assembly 100, and is not described herein again.

In addition, it should be noted that the refrigerator according to the present embodiment, as shown in fig. 8 to 11, may be a single-door refrigerator, a double-door refrigerator, a cross-door refrigerator, etc., as long as the refrigerator is provided with the main door 110 and the auxiliary door 120.

In the embodiment of the present invention, the auxiliary door 120 is pushed toward the main door 110, and both doors are locked; when the power is on, unlocking can be achieved through touch control; in the power-off state, the mechanical button 123 may be pressed to unlock, and in the power-on state, the mechanical button 123 may be pressed to unlock, and the auxiliary door 120 may be opened. Further, when the main door 110 is opened/closed, the auxiliary door 120 is not separated from the main door 110, the main door 110 is not opened when the auxiliary door 120 is opened, and the main door 110 and the auxiliary door 120 have good sealing performance and do not leak cold.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The utility model provides a door subassembly, includes main door and auxiliary door, auxiliary door rotates to be connected on the main door, its characterized in that still includes electronic control module and locates electronic control locking mechanism in the main door, electronic control locking mechanism includes:

2. The door assembly as claimed in claim 1, wherein the first rotating member is configured with a first rotating portion, the active driving end is located at one side of the first rotating portion, and the passive driving end is located at the other side of the first rotating portion.

3. The door assembly as in claim 1, wherein the second rotating member is configured with a second rotating portion, the locking bolt and the lock body extending along the second rotating portion to a same side, the locking bolt and the lock body being spaced apart and opposed to each other.

4. The door assembly of claim 3, wherein the lock body has a length greater than a length of the locking bolt.

5. The door assembly as claimed in claim 3, wherein the first restoring member is a torsion spring, one end of the torsion spring is connected to the second rotating portion, and the other end of the torsion spring is connected to the main door.

6. The door assembly as claimed in claim 2, wherein the first rotating portion is pivotally coupled to the main door by a first rotating shaft, and the driving end and the driven end are disposed at both sides of an axis of the first rotating portion in a radial direction.

7. The door assembly as in claim 1, wherein the electrically controlled handle assembly further comprises:

8. The door assembly as claimed in claim 7, wherein the second returning member is a compression spring, one end of the compression spring is sleeved on the telescopic pull rod, and the other end of the compression spring is fixedly connected with the bottom of the axial sliding hole.

9. The door assembly as claimed in claim 1, wherein the active drive end is configured with an active dog, the active dog being connected with the telescopic pull rod.

10. The door assembly as claimed in claim 9, wherein a connecting hole is formed at the bottom of the telescopic rod, the driving lever passes through the connecting hole, and the aperture of the connecting hole is larger than the outer diameter of the driving lever;

11. The door assembly as claimed in claim 1, wherein the electronic control module includes a control board and a touch key electrically connected to the control board, the control board is installed in the main door, and the touch key is provided on an outer surface of the main door.

12. The door assembly as in claim 1, further comprising a mechanical unlocking mechanism disposed within the main door, the mechanical unlocking mechanism comprising:

the first sliding block is provided with a first sliding matching surface;

13. The door assembly as in claim 12, wherein the mechanical unlocking mechanism further comprises:

14. The door assembly as claimed in claim 12, wherein the electrically controlled locking mechanism and the mechanical unlocking mechanism are provided at the opening and closing end of the main door.

15. The door assembly as claimed in claim 14, wherein the opening and closing end of the main door is configured with a first protrusion extending in a length direction of the main door, and the opening and closing end of the sub-door is configured with an opening portion that escapes the first protrusion and a second protrusion extending in an extending direction of the first protrusion; the electric control locking mechanism and the mechanical unlocking mechanism are arranged in the first convex part of the main door, and the button is arranged on the second convex part.

16. The door assembly as claimed in claim 15, wherein outer surfaces of the first and second protrusions are flush with an outer surface of the main door, and outer surfaces of the first and second protrusions are flush with an outer surface of the opening and closing end of the main door.

17. The door assembly as in claim 15, wherein the electronic control module is disposed at the first boss.

18. The door assembly of any one of claims 1 to 17, wherein the door assembly is a refrigerator door assembly.

19. A refrigerator comprising the door assembly of any one of claims 1 to 18.