CN117804134A

CN117804134A - Refrigerator with a refrigerator body

Info

Publication number: CN117804134A
Application number: CN202211206293.XA
Authority: CN
Inventors: 朱彤; 杨春; 郭动; 张向平; 付婧
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2024-04-02

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a hinge and a door body, wherein the refrigerator body is used for defining a storage room with a taking and placing opening, and the hinge and the door body are arranged on the refrigerator body and are close to the side wall of a first body; the box body comprises a first body side wall and a second body side wall which are oppositely arranged; the hinge is provided with a guide part and a guide part, and the guide part are provided with arc-shaped track lines; the end part of the door body, which is close to the hinge, is provided with a first door shaft matched with the guide part and a second door shaft matched with the guide part; wherein the radius of the circle where the guide track line is located is denoted as r ₁ The method comprises the steps of carrying out a first treatment on the surface of the The radius of the circle where the guide track line is located is recorded as r ₂ ；r ₁ ＜r ₂ The method comprises the steps of carrying out a first treatment on the surface of the In the process that the door body is opened from the closed state, the first door shaft moves in an arc mode relative to the guide part, and the second door shaft moves in an arc mode relative to the guide part, so that the door body moves inwards for a certain distance; the refrigerator precisely controls the door body to rotate, so that the door body cannot exceed or excessively exceed the side surface of the refrigerator body when being opened, and the door body moves smoothly when being opened.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

In the related art, most of hinge structures of refrigerator door bodies are in a single-shaft form, the door bodies rotate around the hinge shafts through the cooperation of the hinge shafts and shaft sleeves of the door bodies, and corners of the door bodies of the hinge structures are beyond the side surfaces of the refrigerator bodies in the door opening process; the fixed shaft of the door body is fixed, so that the opening and closing freedom degree of the door body is greatly limited in the process of opening the door body.

At present, a refrigerator is generally placed in a cabinet to realize the embedding of the refrigerator; for the built-in refrigerator, it is required that the corners of the door body cannot be excessively protruded from the size of the refrigerator body during the door opening process; the above embedded demands make the use of the refrigerator limited.

Disclosure of Invention

The present invention solves at least one of the technical problems in the related art to a certain extent.

For this reason, the present application aims to provide a refrigerator having a hinge structure such that the door body does not protrude or protrude excessively beyond the side of the refrigerator body when opened.

The refrigerator according to the present application, comprising:

a case defining a storage chamber having a pick-and-place port; the box body comprises a first body side wall and a second body side wall which are oppositely arranged;

the hinge is arranged on the box body and is close to the first body side wall; the hinge is provided with a guide part and a guide part, wherein the guide part is provided with an arc-shaped guide track line, and the guide part is provided with an arc-shaped guide track line;

the end part of the door body, which is close to the hinge, is provided with a first door shaft matched with the guide part and a second door shaft matched with the guide part;

wherein the radius of the circle where the guide track line is recorded as r ₁ The method comprises the steps of carrying out a first treatment on the surface of the The radius of the circle where the guide track line is recorded as r ₂ ；r ₁ ＜r ₂ ；

In the process of opening the door body from the closed state, the first door shaft moves in an arc manner relative to the guide part, and the second door shaft moves in an arc manner relative to the guide part, so that the door body moves inwards for a certain distance.

In some embodiments of the present application, the door body has a door front wall that is remote from the case when the door body is closed; the guide track line extends from the door front wall to the picking and placing opening along an arc when the door body is closed, and the circle center of the guide track line is positioned at one side of the guide track line far away from the first body side wall;

the guide track line extends from the first body side wall to the second body side wall along an arc, and the circle center of the guide track line is located at one side of the guide track line far away from the picking and placing port.

In some embodiments of the present application, when the door body is closed, the central axis of the first door shaft is located at an end of the guide track line away from the access opening; the center axis of the second door spindle is located at one end of the guide track line, which is close to the first body side wall.

In some embodiments of the present application, when the door body is closed, the second door shaft is located at a side of the first door shaft, which is close to the first body side wall and the access opening;

Or when the door body is closed, the second door shaft is positioned at one side of the first door shaft, which is far away from the side wall of the first body and is close to the picking and placing opening.

In some embodiments of the present application, the guide track line has a start guide point P ₀ Located at the start guide point P ₀ A fourth guide point P near one side of the pick-and-place opening ₄ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, straight line P ₀ P ₄ Parallel to the first body sidewall;

when the door body is opened to 90 degrees, the guiding center axis P is located at the fourth guiding point P ₄ 。

In some embodiments of the present application, the guide track line extends from the first body side wall to the second body side wall along an arc, and the center of the guide track line is located at one side of the guide track line away from the access opening;

the guide track line extends from the first body side wall to the second body side wall along an arc, and the circle center of the guide track line is positioned at one side of the guide track line, which is close to the picking and placing opening;

the guide track line is positioned at one side of the guide track line, which is close to the picking and placing port;

when the door body is closed, the first door shaft is positioned at the end part of the guide track line, which is close to the first body side wall, and the second door shaft is positioned at the end part of the guide track line, which is far away from the first body side wall; the second door shaft is positioned on one side of the first door shaft away from the side wall of the first body and the taking and placing opening.

In some embodiments of the present application, the center of the circle where the guiding track line is located is denoted as guiding center O ₁ The circle center of the circle where the guide track line is positioned is recorded as a guide circle center O ₂ ；

The guiding circle center O ₂ Is positioned at the guiding circle center O ₁ Is close to the side wall of the first body and one side of the picking and placing opening.

In some embodiments of the present application, the door has a second side edge proximate the hinge and proximate the access opening when the door is closed;

the plane of the pick-and-place opening is marked as a second reference plane M ₂ One side of the first body side wall far away from the picking and placing port is provided with a second reference plane M ₂ A first perpendicular reference plane M ₁ The first reference plane M ₁ And a second reference plane M ₂ Keeping stationary relative to the case during opening of the door relative to the case;

in the process of opening the door body to the maximum angle, the second side edge moves in an arc manner, and the second side edge is firstly far away from the first reference plane M ₁ And is adjacent to the second reference plane M ₂ Is moved in a direction away from the first reference plane M ₁ And away from the second reference plane M ₂ Is moved in the direction of (a).

In some embodiments of the present application, the door body has a door front wall that is remote from the case when the door body is closed, a door rear wall that is disposed opposite the door front wall, and a door side wall that is adjacent to the hinge and connected to the door front wall;

The door back wall is provided with a door sealing strip matched with the front end face of the box body when the door body is closed, and the door sealing strip is provided with a side sealing edge which is close to the door side wall and far away from the door front wall;

in the process of opening the door body to the maximum angle, the side sealing edge moves in an arc manner, and the side sealing edge is firstly far away from the first reference plane M ₁ And is adjacent to the second reference plane M ₂ Is moved in a direction away from the first reference plane M ₁ And away from the second reference plane M ₂ Is moved in the direction of (a).

In some embodiments of the present application, when the door body is opened, the motion track of the side seal edge is recorded as a side seal edge track line; and the circle of the side seal edge track line and the circle of the guide track line are concentric circles.

Compared with the prior art, the invention has the advantages and positive effects that:

Drawings

Fig. 1 is a perspective view of a refrigerator of the present invention;

fig. 2 is a top view of the refrigerator of the present invention;

FIG. 3 is a partial schematic view of the structure of FIG. 2;

FIG. 4 is a view showing a hinge in a closed state of a door body in accordance with an embodiment of the present invention;

FIG. 5 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionView at the time hinge;

FIG. 6 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionView at the time hinge;

FIG. 7 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionView at the time hinge;

FIG. 8 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionView at the time hinge;

fig. 9 is a view showing a refrigerator according to an embodiment of the present invention, in which a door is openedView at the time hinge;

FIG. 10 is a schematic view showing movement of a first side edge, a second side edge and a side seal edge during opening of a door in accordance with an embodiment of the present invention;

FIG. 11 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionThe position of the first door shaft relative to the guide part and the position of the second door shaft relative to the guide part are schematically shown;

FIG. 12 is the present inventionDoor body is opened to the first embodiment of the refrigeratorThe position of the first door shaft relative to the guide part and the position of the second door shaft relative to the guide part are schematically shown;

FIG. 13 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionThe position of the first door shaft relative to the guide part and the position of the second door shaft relative to the guide part are schematically shown;

FIG. 14 shows a door opened to an open state in a refrigerator according to an embodiment of the present inventionThe position of the first door shaft relative to the guide part and the position of the second door shaft relative to the guide part are schematically shown;

fig. 15 is a view showing a door opened to a first position in a refrigerator according to the present inventionThe position of the first door shaft relative to the guide part and the position of the second door shaft relative to the guide part are schematically shown;

FIG. 16 is a view showing a door body formed by G in one embodiment of the refrigerator according to the present invention ₃ Open to G _max In the process, the movement condition of the first door shaft relative to the guide part and the second door shaft relative to the guide part is schematically shown;

FIG. 17 is a schematic view showing the positions of the first door spindle relative to the guide portion and the second door spindle relative to the guide portion when the door body is opened to different angles in the first embodiment of the refrigerator according to the present invention;

fig. 18 is a schematic diagram of a motion trace of a center point I of an axis line segment PQ in the refrigerator according to the embodiment of the present invention;

FIG. 19 shows a door opened to G in a refrigerator according to an embodiment of the present invention ₁ The door body rotates from the closed state to G by taking the center point I of the axle center as the rotation axis when the door body is closed ₁ A position comparison chart at the time;

FIG. 20 shows a door opened to G in a refrigerator according to an embodiment of the present invention ₂ The door body is opened from the position of G ₁ In which state it is opened to G ₁ The center point I of the axle center is the rotation axis to G ₂ A position comparison chart at the time;

FIG. 21 shows a door opened to G in a refrigerator according to an embodiment of the present invention ₃ The door body is opened from the position of G ₂ In which state it is opened to G ₂ The center point I of the axle center is the rotation axis to G ₃ A position comparison chart at the time;

FIG. 22 shows a door opened to G in a refrigerator according to an embodiment of the present invention ₄ The door body is opened from the position of G ₃ In which state it is opened to G ₃ The center point I of the axle center is the rotation axis to G ₄ A position comparison chart at the time;

FIG. 23 shows a door opened to G in a refrigerator according to an embodiment of the present invention _max The door body is opened from the position of G ₃ In which state it is opened to G ₄ The center point I of the axle center is the rotation axis to G _max A position comparison chart at the time;

FIG. 24 is a schematic view showing the positions of a first door spindle relative to a guide and a second door spindle relative to the guide when the first door spindle moves relative to the guide during opening of a second door body in accordance with the second embodiment of the present invention;

FIG. 25 is a schematic view showing the positions of a first door spindle relative to a guide and a second door spindle relative to the guide when the first door spindle relative to the guide is moved when the door is closed when the maximum opening angle of the door is 90 degrees in the second embodiment of the refrigerator of the present invention;

FIG. 26 is a schematic view showing the positions of a first door spindle relative to a guide and a second door spindle relative to the guide when the first door spindle moves relative to the guide during opening of a door in a third embodiment of the refrigerator according to the present invention;

FIG. 27 is a schematic view showing the positions of a first door spindle relative to a guide and a second door spindle relative to the guide when the first door spindle moves relative to the guide during opening of a fourth door body of the refrigerator according to the embodiment of the present invention;

FIG. 28 is a schematic view showing the positions of a first door spindle relative to a guide and a second door spindle relative to the guide when the first door spindle moves relative to the guide during opening of a fifth door body of the refrigerator according to the embodiment of the present invention;

fig. 29 is a schematic view showing positions of a first door shaft relative guide portion and a second door shaft relative guide portion when the first door shaft moves relative to the guide portion during opening of a door body in a sixth embodiment of the refrigerator according to the present invention;

FIG. 30 is a schematic view showing movement of a roller along a convex curve in a seventh embodiment of the refrigerator according to the present invention;

FIG. 31 is a schematic view showing an exploded structure of a door body end and a hinge in an eighth embodiment of the refrigerator according to the present invention;

FIG. 32 is a schematic view showing an assembled structure of a door body end and a hinge in an eighth embodiment of the refrigerator according to the present invention;

FIG. 33 is a schematic view showing an assembled structure of a hinge and a track block which are engaged with a lower end portion of a door body in a ninth embodiment of the refrigerator according to the present invention;

FIG. 34 is a schematic view showing an exploded structure of a hinge and a track block engaged with a lower end portion of a door body in a ninth embodiment of the refrigerator according to the present invention;

FIG. 35 is an exploded view of a hinge and track block associated with a lower end of a door in accordance with a ninth embodiment of the present invention;

FIG. 36 is a schematic view showing an exploded structure of a lower end of a door and a locking block in a ninth embodiment of the refrigerator according to the present invention;

FIG. 37 is a schematic view showing the structure of a locking block in a ninth embodiment of the refrigerator according to the present invention;

FIG. 38 is a schematic view showing an assembled structure of a locking block and a lower end of a door body in a ninth embodiment of the refrigerator according to the present invention;

FIG. 39 is a schematic view showing the cooperation of the hinge and the locking block when the door is closed in the ninth embodiment of the refrigerator according to the present invention;

FIG. 40 is a schematic view showing the hinge engaging with another view of the locking block when the door is closed in accordance with the ninth embodiment of the present invention;

FIG. 41 shows a refrigerator according to a ninth embodiment of the present invention, in which the door is opened to G _B0 Schematic diagram when the locking block is separated from the hinge;

FIG. 42 shows a ninth door opened to G according to an embodiment of the present invention _B1 The relative positions of the hinge and the locking block are shown schematically;

FIG. 43 is a schematic view showing the relative positions of the turnover beam and the cabinet when the door is opened in the tenth embodiment of the refrigerator according to the present invention;

FIG. 44 is a view showing a tenth embodiment of the refrigerator according to the present invention, in which the door is closed to G _S When the door body, the guide block and the guide part are in relative position, the relative position is shown schematically;

FIG. 45 is a view showing a tenth embodiment of the refrigerator according to the present invention, in which the door is closed to G _F When the door body, the guide block and the guide part are in relative position, the relative position is shown schematically;

fig. 46 is a view showing a G in a tenth embodiment of the refrigerator of the present invention _B1 ＞G _S A state explanatory diagram of the lock hook, the stop part, the guide block and the guide part;

fig. 47 is a view showing a G in a tenth embodiment of the refrigerator of the present invention _B1 ＜G _F A state explanatory diagram of the lock hook, the stop part, the guide block and the guide part;

fig. 48 is a diagram showing a G in a tenth embodiment of the refrigerator of the present invention _B1 ＝G _F The state explanatory diagram of the lock hook, the stop part, the guide block and the guide part.

In the above figures: a case 10; a cabinet 100; a door body 30; a door front wall 31; a door sidewall 32; a door rear wall 33; a first side edge W; a second side edge N; a front panel 34; a hinge plate 40; a connection portion 401; an extension 402; a stopper 403; a hooking gap 404; a mounting hole 405; a transition portion 20; a door seal 2; a first door spindle 41; a second door shaft 42; a guide center axis P; a guide center axis Q; guide circle center O ₁ The method comprises the steps of carrying out a first treatment on the surface of the Guiding circle center O ₂ The method comprises the steps of carrying out a first treatment on the surface of the Center of circle O of first side edge ₃ The method comprises the steps of carrying out a first treatment on the surface of the Centre of circle O of second side edge ₄ The method comprises the steps of carrying out a first treatment on the surface of the Circle center O of side seal edge ₅ The method comprises the steps of carrying out a first treatment on the surface of the A guide portion 50; a guide track line S; start guidance point P ₀ The method comprises the steps of carrying out a first treatment on the surface of the First guidance point P ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second guidance point P ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third guidance point P ₃ The method comprises the steps of carrying out a first treatment on the surface of the Fourth guidance point P ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fifth guidance point P ₅ The method comprises the steps of carrying out a first treatment on the surface of the A guide 60; a guide track line K; start guide point Q ₀ The method comprises the steps of carrying out a first treatment on the surface of the First guide point Q ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second guide point Q ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third guide point Q ₃ The method comprises the steps of carrying out a first treatment on the surface of the Fourth guide point Q ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fifth guide point Q ₅ The method comprises the steps of carrying out a first treatment on the surface of the A track block 7; a plate body 70; a locking block 6; a hooking portion 61; root joint 62; a plug board 63; a door end cap 8; a receiving groove 80; a housing portion 81; a first protrusion 82; a second protrusion 83; a clearance groove 84; a turnover beam 9; a guide block 13; track grooves 14.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more such feature.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user in use is defined as the front side, and the opposite side is defined as the rear side.

Example 1

Referring to fig. 1, the refrigerator includes a cabinet 10 having a storage compartment, a door 30 connected to the cabinet 10 to open and close the storage compartment, and a refrigerating device to supply cold air to the storage compartment. The case 10 includes a liner defining a storage chamber, a housing coupled to an outer side of the liner to form an external appearance of the refrigerator, and a heat insulating layer disposed between the liner and the housing to insulate the storage chamber.

The case 10 defines a plurality of storage compartments. In this embodiment, the plurality of storage compartments includes a refrigerating compartment and a freezing compartment below the refrigerating compartment; note that, the arrangement of the plurality of storage compartments of the refrigerator is not limited to the above exemplary description.

The front end of the storage chamber is provided with a taking-out opening for placing food into the storage chamber or taking out food from the storage chamber; a rotatable door 30 is provided on the case 10 to open or close the access opening of the storage compartment. Specifically, the door 30 is rotatably connected to the case 10 by a hinge at an upper portion and a hinge at a lower portion.

The case 10 includes a first body sidewall and a second body sidewall (i.e., left and right sidewalls of the case 10) disposed opposite to each other; the hinge is arranged on the box body 10 and is close to the first body side wall; the door body 30 has a door front wall 31 which is distant from the case 10 when the door body 30 is closed, a door rear wall 33 which is provided opposite to the door front wall 31, and a door side wall 32 which is close to the hinge and is connected to the door front wall 31; for example, when the hinge is located on the right side of the case 10, the right side of the door 30 is the door sidewall 32; when the hinge is located on the left side of the case 10, the left side wall of the door 30 is the door side wall 32 when it is closed.

The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a first side edge W, and the door side wall 32 intersects with the door rear wall 33 to form a second side wall N. When the door 30 is closed, the first side edge W is located on a side of the second side edge N away from the case 10. When the door front wall 31 and the door side wall 32 are both planar, the intersection line of the two planes is a theoretical first side edge W (similarly, the theoretical second side edge N is the intersection line of the two planes of the door side wall 32 and the door rear wall 33); in the actual manufacturing process, the intersection of the door front wall 31 and the door side wall 32 is rounded, so that a curved surface is formed at the intersection of the door front wall 31 and the door side wall 32. For convenience of description, the present application describes a theoretical first side edge W and a theoretical second side edge N. In addition, a plane passing through the centroid of the door body 30 and parallel to the door front wall 31 is denoted as a centroid plane F; during opening of the door 30, the centroid plane F moves with the door 30. In the present embodiment, a centroid plane F determined with the geometric center of the door body 30 as the centroid is described.

The back wall of the door body 30 is provided with a door seal 2; when the door body 30 is closed, the door seal 2 is attached to the front end face of the box body surrounding the taking and placing opening, so that the joint of the door body 30 and the box body 10 is effectively sealed, the door body 30 is ensured to seal the taking and placing opening, and the cold air is prevented from overflowing. The door sealing strip 2 is ring-shaped and can be arranged; the door seal 2 includes a side seal adjacent to the door side wall 32, and the edge of the door seal 2 (side seal) adjacent to the door side wall 32 and away from the door front wall 31 is denoted as a side seal edge F.

Referring to fig. 2 to 3, the door body 30 is provided at an end portion near the hinge with a first door shaft 41, and a second door shaft 42 located at a side of the first door shaft 41 away from the door front wall 31; the hinge is provided with a guide part 50 and a guide part 60; the first door shaft 41 is fitted to the guide 50, the second door shaft 42 is fitted to the guide 60, and the first door shaft 41 moves relative to the guide 50 and the second door shaft 42 moves relative to the guide 60 during the rotation of the door body 30 to open or close. In this embodiment, the first door shaft 41 moves in an arc with respect to the hinge under the guiding action of the guide portion 50, and the second door shaft 42 moves in an arc with respect to the hinge under the guiding action of the guide portion 60.

The hinge includes a hinge plate 40 fixedly connected with the case 10, the hinge plate 40 including: a connection portion 401 connected to the case 10, and an extension portion 402 extending forward from the connection portion 401 and having a horizontal plate shape. The connection portion 401 may be fastened to the top wall of the case 10 by fasteners such as screws, pins, and bolts. Specifically, for the hinge at the upper end of the door 30, the connection portion 401 is connected to the top wall of the case 10. The hinge at the lower end of the door 30 is connected to the front end surface of the case 10 at a connecting portion 401. Wherein the guide 50 and the guide 60 are formed on the extension 402.

The first door shaft 41 and the second door shaft 42 are connected to the end of the door body 30 near the hinge to form a limiting shaft guiding the movement of the door body 30. Specifically, the first door shaft 41 and the second door shaft 42 provided at the end of the door body 30 extend in the vertical direction to be fitted to the guide portion 50 or the guide portion 60 provided at the hinge.

In this embodiment, the hinge plates 40 at the upper and lower ends of the door body 30 are provided with the guide portions 50 and 60, and the door body 30 is provided with the first door shaft 41 and the second door shaft 42 at the upper and lower ends thereof. It should be noted that, the arrangement of the present embodiment is not limited by the arrangement of the upper and lower ends of the door 30, and the door 30 and the case 10 are connected according to the need.

In the present embodiment, with continued reference to fig. 2, a plane (first body side wall) on the case 10 where the side face near the hinge plate 40 is located is defined as a reference plane M ₀ The refrigerator is accommodated in the cabinet 100, and the reference plane M ₀ The side close to the cabinet 100 is the outside, and the opposite side close to the storage room is the inside. When the door body 30 is closed, the door front wall 31 is flush with the front end surface of the cabinet 100 ("flush" includes any case where the two planes are less than 2mm apart). When the refrigerator is placed in the cabinet 100 for use, in order to prevent factors such as uneven user's floor and deformation of the cabinet 100, the cabinet 100 is sized such that the cabinet 100 is spaced from a side surface (a first body side wall, i.e., a reference plane M ₀ ) Is a distance alpha, settable, alpha e 3,5]Units: mm. In order to ensure that the door 30 of the refrigerator is normally opened, the first side edge W of the door 30 cannot protrude beyond the side surface (reference plane M) of the cabinet 10 during rotation ₀ ) Too much to prevent the door 30 from being opened normally due to the collision of the first side edge W with the cabinet 100.

To meet the above requirement, the door 30 needs to be able to move inward during rotation so that the first side edge W does not protrude beyond the side of the case 10 (reference plane M ₀ ) Too much. Taking the hinge plate 40 as an example, the right side of the door body 30 is provided, and the inner side is the left side, that is, the door body 30 needs to be able to move to the left side; taking the case where the hinge plate 40 is provided at the left side of the door body 30, the inner side is the right side, i.e., the door body 30 needs to be movable to the right side. In the present embodiment, the right side wall of the case 10 is a first body side wall, which is a reference plane M ₀ To describe it.

As shown in fig. 3, in the present embodiment, a trajectory line in which the guide portion 50 guides the relative movement of the central axis of the first door spindle 41 is denoted as a guide trajectory line S, and a trajectory line in which the guide portion 60 guides the relative movement of the central axis of the second door spindle 42 is denoted as a guide trajectory line K. The guide track line S and the guide track line K are equal-radius circular arcs.

In this embodiment, the guide portion 50 is configured as a guide groove, the guide portion 60 is configured as a guide portion, and the guide groove and the guide portion are both arc grooves with equal radius, that is, the center trajectory line of the guide groove is a guide trajectory line S, and the center trajectory line of the guide portion is a guide trajectory line K; the guide track line S and the guide track line K are both of an equal-radius arc, so that the first door shaft 41 matched with the guide groove moves in an arc mode relative to the guide groove, the second door shaft 42 matched with the guide groove moves in an arc mode relative to the guide groove, and the smoothness of rotary opening of the door body 30 is effectively improved. In some embodiments of the present application, the guide groove formed on the hinge and the notch of the guide groove are downward, which can prevent dust from falling into the groove, effectively ensure the cleanliness of the guide groove and the guide groove, and avoid the influence of ash hidden in the groove on the movement of the limiting shaft located in the groove and matched with the groove, thereby effectively ensuring the long-term fluency of opening the door body 30. That is, in the present embodiment, both the guide portion 50 and the guide 60 have a door shaft to prevent dust accumulation from causing unsmooth relative movement with the corresponding door shaft.

The equal radius arc according to the present invention includes a standard arc in a standard mathematical definition, and includes an arc having an arc characteristic which is deviated from the standard arc in the standard mathematical definition due to a machining error, a micro deformation of a component, a micro wear, or the like.

In the present embodiment, as shown in FIG. 3, a reference plane M is used in the projection of the plane of the top wall of the case 10 ₀ Is Y-axis, is positioned at the front side of the hinge plate 40 and is opposite to the reference plane M ₀ The vertical straight line is denoted as the X-axis (in this embodiment, the plane passing through the first side edge W and parallel to the access opening is denoted as the X-axis when the door 30 is closed, that is, the plane of the door front wall 31 when the door 30 is closed is denoted as the X-axis); the X axis is perpendicular to the Y axis and intersects with the origin O; the direction of the plane passing through the first side edge W and parallel to the picking and placing opening when the door body 30 is closed and pointing to the box body 10 is the positive direction of the Y axis, the firstThe direction of the body side wall pointing to the second body side wall is the positive direction of the X axis, and a two-dimensional coordinate system XOY is formed.

In the coordinate system XOY, the standard equation of the circle in which the guide track line S is located is (x-a ₁ ) ² +(y-b ₁ ) ² ＝r ₁ ² The method comprises the steps of carrying out a first treatment on the surface of the The circle center of the circle where the guiding track line S is positioned is marked as a guiding circle center O ₁ ；

The standard equation of the circle on which the guide track line K is located is (x-a ₂ ) ² +(y-b ₂ ) ² ＝r ₂ ² The method comprises the steps of carrying out a first treatment on the surface of the The circle center of the circle center where the guide track line S is positioned is recorded as a guide circle center O ₂ ；

In some embodiments of the present application, r ₁ ＜r ₂ That is, the radius of the circle where the guide track line S is located is smaller than the radius of the circle where the guide track line K is located, so that the second door shaft 42 has a smooth and gentle movement trend (the curvature of the guide track line K is small) relative to the guide portion 60 while the first door shaft 41 moves in an arc shape relative to the guide portion 50, and the smoothness and stability of opening of the door body 30 are improved.

In some embodiments of the present application, a ₁ ＞a ₂ ，b ₁ ＜b ₂ ，r ₁ ＜r ₂ The method comprises the steps of carrying out a first treatment on the surface of the I.e. guiding the centre of a circle O ₂ Located at the center of the guide circle O ₁ Near the side wall of the first body and one side of the taking and placing opening.

In the present embodiment, the guide track line S extends in a direction from the door front wall 31 toward the door rear wall 32 when the door body 30 is closed; the guide track line K extends in a direction from the first body side wall to the second body side wall; the guide track line K can be arranged on the side of the guide track line S close to the pick-and-place opening.

As a settable way, the centre of a circle O is guided ₁ On the side of the guide track line S remote from the first body side wall; i.e. the guide track line S is a circular arc protruding towards the first body side wall. Guiding circle center O ₂ The guide track line K is positioned at one side far away from the pick-and-place opening; namely, the guide track line K is an arc protruding towards the pick-and-place opening.

In some embodiments of the present application, the guiding track line S has a start guiding point P sequentially approaching the pick-and-place port ₀ First guidance point P ₁ Second guidance point P ₂ Third guidance point P ₃ Fourth guidance point P ₄ Fifth guidance point P ₅ The method comprises the steps of carrying out a first treatment on the surface of the I.e. the start guidance point P ₀ First guidance point P ₁ Second guidance point P ₂ Third guidance point P ₃ Fourth guidance point P ₄ Fifth guidance point P ₅ Are all in the circle O ₁ And (3) upper part. In some embodiments of the present application, the distance between the guide track line S and the first body side wall decreases and increases along the direction in which the door front wall 31 points to the access opening (forward along the Y axis) when the door body 30 is closed; wherein the third guidance point P ₃ The distance from the first body sidewall is minimal. The guiding track line S is formed by a starting guiding point P ₀ First, the first guide point P is passed along the circular arc in the direction approaching to the side wall of the first body and the picking and placing opening ₁ Second guidance point P ₂ Extends to a third guide point P ₃ Then pass through the fourth guide point P along the circular arc in the direction away from the side wall of the first body and close to the picking and placing opening ₄ Extends to a fifth guide point P ₅ 。

The guiding track line K is provided with an initial guiding point Q which is sequentially far away from the side wall of the first body ₀ First guide point Q ₁ Second guide point Q ₂ Third guide point Q ₃ Fourth guide point Q ₄ Fifth guide point Q ₅ The method comprises the steps of carrying out a first treatment on the surface of the I.e. the start guide point Q ₀ First guide point Q ₁ Second guide point Q ₂ Third guide point Q ₃ Fourth guide point Q ₄ Fifth guide point Q ₅ Are all in the circle O ₂ And (3) upper part. In some embodiments of the present application, the distance between the guide track line K and the pick-and-place port decreases and then increases along the direction from the first body side wall to the second body side wall (along the positive direction of the X axis); wherein the second guiding point Q ₂ The distance between the device and the picking and placing port is the smallest. The guiding track line K is formed by a starting guiding point Q ₀ The first guide point Q is firstly passed along the circular arc in the direction far away from the side wall of the first body and close to the picking and placing opening ₁ Extends to a second guide point Q ₂ Then pass through a third guide point Q along an arc in a direction away from the side wall of the first body and the pick-and-place opening ₃ Fourth guide point Q ₄ Extends to a fifth guide point Q ₅ 。

As shown in fig. 3, wherein the start guidance point P ₀ The distance between the picking and placing mouth is recorded as D ₀ Fifth guidance point P ₅ The distance between the picking and placing mouth is recorded as D ₁ The method comprises the steps of carrying out a first treatment on the surface of the Start guide point Q ₀ The distance between the picking and placing mouth is recorded as Z ₀ Fifth guide point Q ₅ The distance between the picking and placing mouth is recorded as Z ₁ . Wherein Z is ₀ ＜D ₁ ≤Z ₁ ＜D ₀ . The arrangement effectively ensures that the maximum opening angle of the door body 30 is not less than 90 degrees under the arrangement that the guide track line S and the guide track line K are circular arcs in the embodiment, and the articles are convenient to take and put.

In some embodiments of the present application, the second door shaft 42 is located on a side of the first door shaft 41 near the door rear wall 33, and the guide portion 50 is located on a side of the guide portion 60 away from the access opening; the first door shaft 41 moves in a circular arc relative to the guide 50, and the second door shaft 42 moves in a circular arc relative to the guide 60, so that the door body 30 can move inward (in a direction approaching the second body sidewall) for a distance while rotating, thereby compensating for the outward displacement of the first side edge W caused by the simple rotation of the door body 30, so as to limit the first side edge W to exceed the reference plane M ₀ Effectively avoiding interference with the cabinet 100 when the door 30 is opened.

In some embodiments of the present application, in the projection of the top wall of the case 10, when the door 30 is closed, the straight line where the central axis of the first door shaft 41 and the central axis of the second door shaft 42 are located is parallel to the first body side wall. That is, when the door body 30 is closed, the line in which the central axis of the first door shaft 41 and the central axis of the second door shaft 42 are located is parallel to the Y axis. As an arrangement, when the door body 30 is closed, the door front wall 31 is parallel to the plane of the pick-and-place opening, the door side wall 32 is perpendicular to the door front wall 31, and the door side wall 32 is parallel or flush with the first body side wall; that is, in the projection of the top wall of the case 10, the door side wall 32 coincides with or is parallel to the Y axis when the door 30 is closed; it should be noted that "parallel" includes parallel in the standard mathematical definition, and also includes a two-sided relationship in which the included angle is less than 3 ° due to machining errors or micro-deformation or micro-wear of the component. With the above configuration, during the opening of the door body 30, the first door shaft 41 moves toward the door rear wall 33 with respect to the guide portion 50, and the second door shaft 42 moves away from the first body side wall with respect to the guide portion 60, so that the door body moves inward by a certain distance.

Since the guide portion 50 and the first door shaft 41 and the guide portion 60 and the second door shaft 42 are in a relative movement relationship, if the guide portion 50 and the guide portion 60 are stationary references during the opening of the door body 30, the first door shaft 41 moves under the restriction of the guide portion 50, and the second door shaft 42 moves under the restriction of the guide portion 60. For convenience of description, the guide 50 and the guide 60 are used as stationary references, and the first door shaft 41 and the second door shaft 42 are described in a manner of moving relative to the references.

In the present embodiment, the central axis of the first door shaft 41 is denoted as a guide central axis P, and the central axis of the second door shaft 42 is denoted as a guide central axis Q; in the projection of the plane of the top wall of the case 10, a line segment PQ is denoted as an axial line segment PQ; the center of the axis line segment PQ is denoted as the axis midpoint I. As shown in fig. 4 to 18, the movement of the first door shaft 41 along the guide portion 50 is equivalent to the movement of the guide central axis P along the guide trajectory line S, and the movement of the second door shaft 42 along the guide portion 60 is equivalent to the movement of the guide central axis Q along the guide trajectory line K, so that the door body 30 can move inward (in a direction approaching to the second body sidewall) by a certain distance while rotating, thereby compensating the outward displacement of the first side edge W caused by the simple rotation of the door body 30, and effectively avoiding the mutual interference with the cabinet 100 when the door body 30 is opened. The movement of the door 30 relative to the box 10 is equivalent to the relative movement of both in the plane of the top wall of the box 10 (or in the plane parallel to the top wall of the box 10 (two-dimensional coordinate system XOY)); i.e. the movement of the door 30 relative to the cabinet 10 is a relative movement in a two-dimensional plane. Since the first door spindle 41 and the second door spindle 42 are fixed to the door body 30, the movement of the axis line segment PQ with respect to the hinge is equivalent to the movement of the door body 30 with respect to the hinge and also equivalent to the movement of the door body 30 with respect to the box body 10 in the plane of the top wall of the box body 10.

In the following description, for convenience of explanation, the movement of the axis line segment PQ relative to the hinge in the plane of the top wall of the case 10 is selected to represent the movement of the door 30 relative to the case 10.

In the embodiment of the present application, in the plane of the top wall of the case 10, the door 30 rotates during the opening process around a varying point, which is the center of the axis line segment PQ; that is, in this embodiment, the door 30 rotates about the center point I of the axis of variation in the plane of the top wall of the case 10.

As shown in fig. 4, in the present embodiment, when the door body 30 is in the closed state, the central axis of the first door shaft 41 (the guide central axis P) is located at the initial guide point P of the guide track line S ₀ The central axis of the second door spindle 42 (guide central axis Q) is located at the start guide point Q of the guide track line K ₀ . That is, when the door body 30 is in the closed state, the first door shaft 41 is located at the end of the guide portion 50 away from the picking and placing opening, and the second door shaft 42 is located at the end of the guide portion 60 close to the side wall of the first body; the first door shaft 41 is located on a side of the second door shaft 42 remote from the access opening. In some embodiments of the present application, P is the same as P when door 30 is closed in projection of the top wall of case 10 ₀ Q ₀ Parallel to the first body sidewall.

In the present embodiment, the maximum opening angle G of the refrigerator is defined by the guide portion 50, the first door shaft 41, the guide portion 60, and the second door shaft 42 _max The illustration is > 90 deg.. The door 30 is opened from the closed state to the maximum angle G _max In the process, when the door body 30 is rotated and opened to a specific angle, the relative positions of the first door shaft 41 and the second door shaft 42 with respect to the guide portion 50 and the guide portion 60 are specifically as follows:

in the following description of the present invention,indicating the opening angle of the door body 30, the opening angle of the door body 30 in the closed state>The door 30 is opened with respect to the case 10 to open the access opening by an opening angle +.>Is a positive number;

as shown in figure 4 of the drawings,when the door body 30 is in a closed state; the central guide axis P is located at the initial guide point P of the guide track line S ₀ The guiding center axis Q is located at the initial guiding point Q of the guiding track line K ₀ The center point I of the axle center is positioned at the initial center point I relative to the hinge ₀ 。

As shown in figure 5 of the drawings,when the door 30 is closed to G ₂ A process of rotating the opening; in the above opening process, the first door shaft 41 makes an arc movement along the guide track line S in a direction approaching the first body side wall and the access opening, and the second door shaft 42 makes an arc movement along the guide track line K in a direction departing from the first body side wall and approaching the access opening.

The door body 30 is opened by the above angleWhen the opening angle interval movement trend is kept consistent; the differences are only that: the opening angle is different, the position of the first door shaft 41 is different with respect to the guide trajectory line S, and the position of the second door shaft 42 is different with respect to the guide trajectory line K. Thus, the opening angle +. >In the inner case, selecting one of the opening angles may represent the relative positions of the first door shaft 41 and the guide portion 50, and the second door shaft 42 and the guide portion 60 when the door body 30 is opened to the corresponding section; specifically, as shown in FIGS. 5 and 11, in +.>Representing a position within the opening angle interval, for comparison with when the door body 30 is opened to other states.

As shown in figures 5 and 11 of the drawings,when the door body 30 is rotated to open to G ₁ The method comprises the steps of carrying out a first treatment on the surface of the Guide center shaftP is located at a first guide point P of the guide track line S ₁ First guidance point P ₁ At the initial guidance point P ₀ One side close to the side wall of the first body and the taking and placing port; the guiding center axis Q is positioned at a first guiding point Q of the guiding track line K ₁ First guide point Q ₁ At the initial guiding point Q ₀ One side far away from the side wall of the first body and close to the picking and placing port; the center point I of the axle center moves to the first center point I along with the axle center line segment PQ ₁ First midpoint I ₁ At the initial midpoint I ₀ One side remote from the first body sidewall; in some embodiments of the present application, the first midpoint I ₁ At the same time at the initial midpoint I ₀ One side close to the pick-and-place opening. The door 30 is turned from the closed state to G ₂ During the opening process, the first door shaft 41 moves in an arc manner along the guide track line S in the direction approaching the first body side wall and the picking and placing port in the whole course, and the second door shaft 42 moves in an arc manner along the guide track line K in the direction away from the first body side wall and approaching the picking and placing port in the whole course. Settable, G ₁ ∈[5°，9°]Any one of the values in (a).

As shown in figure 6 and figure 12 of the drawings,when the door body 30 is rotated to open to G ₂ The method comprises the steps of carrying out a first treatment on the surface of the During the whole opening process of the door body 30, the door body 30 is opened to G ₂ In this case, the distance between the guide center axis Q and the pick-and-place port is minimized. At->When the guiding center axis P is located at the second guiding point P of the guiding track line S ₂ Second guidance point P ₂ Located at a first guide point P ₁ One side close to the side wall of the first body and the taking and placing port; the guiding center axis Q is located at a second guiding point Q of the guiding track line K ₂ Second guide point Q ₂ At the first guide point Q ₁ One side far away from the side wall of the first body and close to the picking and placing opening. Wherein the second guiding point Q ₂ The point with the minimum distance between the guide track line K and the pick-and-place opening; that is, the position of the guide center axis Q is the position closest to the pick-and-place opening in the process of opening the door body 30; center point I of the axle center is along with the line segment of the axle centerPQ moves to a second midpoint I ₂ Second midpoint I ₂ At a first midpoint I ₁ One side remote from the first body sidewall; in some embodiments of the present application, the second midpoint I ₂ At the same time at the first midpoint I ₁ One side close to the pick-and-place opening. The door body 30 is formed by G ₁ Open to G ₂ In the process of (a), the first door shaft 41 moves along the guide track line S in a circular arc manner in the direction approaching the side wall of the first body and the pick-and-place opening in the whole course, and the second door shaft 42 moves along the guide track line K in a circular arc manner in the direction away from the side wall of the first body and approaching the pick-and-place opening. Settable, G ₂ ∈[23°，27°]Any one of the values in (a); in this embodiment, G ₂ When=25°, the distance between the guide center axis Q and the pick-and-place port is the smallest.

As shown in figures 7 and 13 of the drawings,when the door body 30 is rotated to open to G ₃ The method comprises the steps of carrying out a first treatment on the surface of the During the whole opening process of the door body 30, the door body 30 is opened to G ₃ The guide center axis P is at a minimum distance from the first body side wall. The guiding center axis P is located at a third guiding point P of the guiding track line S ₃ Third guidance point P ₃ At the second guide point P ₂ One side close to the side wall of the first body and the taking and placing port; wherein the third guidance point P ₃ A point at which the guide track line S is at a minimum distance from the first body side wall; that is, the guide center axis P is located at the position closest to the side wall of the first body during the opening of the door body 30. The guiding center axis Q is positioned at a third guiding point Q of the guiding track line K ₃ Third guide point Q ₃ At the second guide point Q ₂ One side far away from the side wall of the first body and the taking and placing port; the center point I of the axle center moves to a third center point I along with the axle center line segment PQ ₃ Third midpoint I ₃ At a second midpoint I ₂ One side remote from the first body sidewall; in some embodiments of the present application, the third midpoint I ₃ At the same time at a second midpoint I ₂ One side close to the pick-and-place opening.

The door body 30 is formed by G ₂ Open to G ₃ During the course of the first door spindle 41 all the way along the guide trajectory S towards the first body side wall and the access The second door shaft 42 moves in an arc along the guide track line K in a direction away from the side wall of the first body and the pick-and-place opening. Settable, G ₃ ∈[41°，45°]Any one of the values in (a); in this embodiment, G ₃ ＝43°。

As shown in figures 8 and 14 of the drawings,when the door body 30 is rotated to open to G ₄ The method comprises the steps of carrying out a first treatment on the surface of the The central guide axis P is located at a fourth guide point P of the guide track line S ₄ Fourth guidance point P ₄ At the third guide point P ₃ One side far away from the side wall of the first body and close to the picking and placing port; the guiding center axis Q is located at a fourth guiding point Q of the guiding track line K ₄ Fourth guide point Q ₄ At the third guide point Q ₃ One side far away from the side wall of the first body and the taking and placing port; the center point I of the axle center moves to a fourth center point I along with the axle center line segment PQ ₄ Fourth midpoint I ₄ At a third midpoint I ₃ One side remote from the first body sidewall; in some embodiments of the present application, the fourth midpoint I ₄ At the same time at a third midpoint I ₃ One side far away from the picking and placing port. The door body 30 is formed by G ₃ Open to G ₄ During the process of (a), the first door shaft 41 moves in an arc manner along the guide track line S in a direction away from the side wall of the first body and the picking and placing port, and the second door shaft 42 moves in an arc manner along the guide track line K in a direction away from the side wall of the first body and the picking and placing port. In some embodiments of the present application, P ₀ P ₄ The straight line is parallel to the side wall of the first body, namely P ₀ 、P ₄ 、Q ₀ Collinear and parallel to the first body side wall. In some embodiments of the present application, P ₄ Q ₄ Parallel to the plane of the pick-and-place opening, i.e. P ₄ Q ₄ Perpendicular to the first body side wall, G ₄ ＝90°。

In some embodiments of the present application, as shown in fig. 8 and 12, when the door body 30 is closed, the guiding center axis P is located at the initial positioning point P of the guiding track line S ₀ The method comprises the steps of carrying out a first treatment on the surface of the Start positioning point P ₀ With a reference plane M ₀ Is L ₁ . Door front wall 31 and access openingPlanes are parallel;

the door body 30 is opened to G ₄ When=90°, the door front wall 31 is parallel to the first body side wall; the central guide axis P is located at a fourth location point P of the guide track line S ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fourth positioning point P ₄ At a distance L from the door front wall 31 ₂ 。

Settable, L ₁ ＜L ₂ When the door body 30 is opened to 90 °, the door front wall 31 protrudes outside the first body side wall of the case 10. As another embodiment 0.ltoreq.L ₂ -L ₁ And is less than or equal to 3mm to shade the bulge caused by foaming on the refrigerator body 10, effectively conceal the flaw and improve the beautiful degree of the refrigerator.

In this application, the term "parallel" is specifically defined as that the included angle between two planes is any value from 0 ° to 3 °. That is, the two-plane relationship in which the two-plane included angle belongs to any one value of 0 ° to 3 ° is defined as parallel. "flush" is specifically defined as any value where the maximum distance between two planes is less than 2 mm. The term "perpendicular" is specifically defined as the angle between two planes belonging to any one of 89 DEG to 91 deg. This definition applies throughout this application.

As shown in figures 9 and 15 of the drawings,when the door body 30 is rotated to open to G _max The method comprises the steps of carrying out a first treatment on the surface of the The guide center axis P is located at a fifth guide point P of the guide track line S ₅ Fifth guidance point P ₅ At the third guide point P ₃ One side far away from the side wall of the first body and close to the picking and placing port; the guiding center axis Q is located at a fifth guiding point Q of the guiding track line K ₅ Fifth guide point Q ₅ At the fourth guide point Q ₄ One side far away from the side wall of the first body and the taking and placing port; the center point I of the axle center moves to a fifth center point I along with the axle center line segment PQ ₅ Fifth midpoint I ₅ At a fourth midpoint I ₄ One side remote from the first body sidewall; in some embodiments of the present application, a fifth midpoint I ₅ At the same time at the fourth midpoint I ₄ One side far away from the picking and placing port. The door body 30 is formed by G ₄ Open to G _max During the course of (a), the first door spindle 41 moves away from the guide path S all the wayThe first body side wall and the pick-and-place opening move in an arc manner, and the second door shaft 42 moves in an arc manner along the guide track line K in a direction away from the first body side wall and the pick-and-place opening. Settable, G _max ∈[100°，125°]Any one of the values in (a).

In the present embodiment, the door 30 is opened to the maximum angle G _max When the first door spindle 41 is located at the end of the guide portion 50 remote from the door front wall 31; the second door shaft 42 is located at a side of the first door shaft 41 remote from the first body sidewall, and at an end of the guide portion 60 remote from the first body sidewall. As a settable way, the maximum angle G at which the door body 30 is opened _max Not less than 100 degrees, so as to facilitate taking out objects.

As a settable way, the door body 30 is opened to a maximum angle G _max In the projection of the plane of the top wall of the case 10, the axis line PQ is perpendicular to the first body side wall.

As a settable way, the door body 30 is opened to a maximum angle G _max In the projection of the plane of the top wall of the case 10, the guide center axis Q is located on the side of the guide center axis P away from the first body side wall and the pick-and-place port.

As another arrangement, the door body is opened to a maximum angle G _max In the projection of the plane of the top wall of the case 10, the straight line of the guide center axis Q and the guide center axis P is parallel to the plane of the pick-and-place opening.

In this embodiment, 0 ° < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＜G _max The method comprises the steps of carrying out a first treatment on the surface of the Above G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max The first angle, the second angle, the third angle, the fourth angle and the maximum angle are sequentially recorded.

In the above embodiment, when the door 30 is opened to the maximum angle G _max In the process, the first door shaft 41 always moves relative to the guide part 50 and moves in a circular arc manner in a direction approaching the picking and placing port in one direction; the second door shaft 42 always moves relative to the guide part 60 and moves in a circular arc in a direction away from the side wall of the first body in one direction; i.e., the first door shaft 41 and the second door shaft 42 are maintained to move unidirectionally throughout the opening of the door body 30, The direction of the first door shaft 41 and the second door shaft 42 in the opening process of the door body 30 is always kept consistent without reversing, the hand feeling of opening and closing the door is good, and the user experience is improved; in addition, the life of the guide 50 and the guide 60 is improved. Furthermore, in the whole process of opening the door body 30, the first door shaft 41 and the second door shaft 42 keep unidirectional circular arc movement in the whole process, so that the acceleration of stopping and re-moving is not generated in the whole process of opening the door body 30, and the moving smoothness of the door body 30 is better.

In combination with the above, when the door body 30 is opened to a specific angle, the positions of the two limiting shafts (the first door shaft 41 and the second door shaft 42) relative to the limiting portions (the guide portion 50 and the guide portion 60) can be known, and the following relationship exists between the first door shaft 41 and the guide portion 50: the door body 30 is opened from the closed state to G ₃ During the process, the first door shaft 41 moves along the guide part 50 in a direction approaching the first body side wall and the access opening; the door body 30 is formed by G ₃ Open to G _max The first door shaft 41 moves along the guide 50 in a direction away from the first body sidewall and toward the access opening. The following describes the relative movement of the two stages from the angle of the engagement of the first door shaft 41 with the guide 50 and the second door shaft 42 with the guide 60:

(1) In the first stage, referring to fig. 4-7, and fig. 11-13, the door body 30 is rotated from the closed state to the open state G as shown in fig. 17-18 ₃ Is a process of (2).

In this first phase, the door 30 passes G from 0 DEG ₁ 、G ₂ Open to G ₃ . In the process, the guiding center axis P is defined by the initial guiding point P ₀ Performing circular arc motion along the guide track line S in a direction approaching to the side wall of the first body and the pick-and-place opening; the guiding central axis Q is from the initial guiding point Q ₀ The guide track line K firstly moves in an arc manner in a direction away from the side wall of the first body and close to the picking and placing opening, and then moves in an arc manner in a direction away from the side wall of the first body and away from the picking and placing opening.

Specifically, the guide center axis P is defined by the initial guide point P ₀ Sequentially passing through the first guide point P along the guide track line S ₁ Second guidance point P ₂ Move to the third guide point P ₃ The method comprises the steps of carrying out a first treatment on the surface of the The guiding central axis Q is from the initial guiding pointQ ₀ Sequentially passing through the first guide point Q along the guide track line K ₁ Second guide point Q ₂ Move to the third guide point Q ₃ 。

In the opening process of the first stage, the door body 30 is opened from 0 ° to G with the hinges (the guide portions 50 and 60) as references ₃ In the process of (1), the movement trend of the center point I along with the movement of the center line segment PQ is I ₀ →I ₁ →I ₂ →I ₃ I.e., during the opening of the door 30, the center point I of the shaft center moves inward relative to the hinge; during the opening process, the axis line segment PQ is defined by P ₀ Q ₀ Rotated clockwise and moved inward in turn to P ₁ Q ₁ 、P ₂ Q ₂ 、P ₃ Q ₃ A place; namely the movement trend of the axle line segment PQ is P ₀ Q ₀ →P ₁ Q ₁ →P ₂ Q ₂ →P ₃ Q ₃ 。

Since the guide portion 50 and the guide portion 60 are provided on the hinge fixed to the case 10, the axis line segment PQ represents the movement of the door 30; the following is obtained: taking the box body 10 as a reference object, the door body 30 is opened from a closed state to G ₃ The door 30 is kept rotating clockwise and moves inward with respect to the case 10 throughout the course of the process. That is, the arrangement of the present embodiment realizes that the door 30 is opened and moves inward by a certain distance, and compensates the outward displacement of the first side edge W caused by the simple rotation of the door 30, so as to effectively avoid the interference between the door 30 and the cabinet 100.

In the opening process of the first stage, the first stage is divided into two opening sections according to the variation trend of the movement track of the second door shaft 42 relative to the guide part 60; specifically, the first stage includes a first segment and a second segment. The specific sectional motion conditions are as follows:

the first section, the door 30 is opened from the closed state to G ₂ The method comprises the steps of carrying out a first treatment on the surface of the In the process, the guiding central axis Q is defined by the initial guiding point Q ₀ And performing circular arc motion along the guide track line K in a direction away from the side wall of the first body and close to the pick-and-place opening.

Second section, door 30 is formed by G ₂ Open to G ₃ The method comprises the steps of carrying out a first treatment on the surface of the In the course of this process, the process is carried out,the guiding central axis Q is formed by a second guiding point Q ₂ Moving along the guide trace K in a direction away from the first body sidewall and the pick-and-place port.

Combining the first segment and the second segment yields: during the whole opening process of the door body 30, the door body 30 is opened to G ₂ The distance between the guide center axis Q and the pick-and-place opening is the smallest.

(2) In the second stage, referring to FIGS. 7-9, as shown in FIGS. 13-18, the door 30 is formed of G ₃ Rotate and open to G _max Is a process of (2).

The door body 30 is formed by G ₃ Open to G _max . In the process, the guiding center axis P is defined by the third guiding point P ₃ Performing circular arc motion along the guide track line S in a direction far away from the side wall of the first body and close to the picking and placing port; the guiding central axis Q is formed by a third guiding point Q ₃ And performing circular arc motion along the guide track line K in a direction away from the side wall of the first body and the pick-and-place opening.

Specifically, the guiding center axis P is defined by a third guiding point P ₃ Sequentially passing through the fourth guide point P along the guide track line S ₄ Move to the fifth guidance point P ₅ The method comprises the steps of carrying out a first treatment on the surface of the The guiding central axis Q is formed by a third guiding point Q ₃ Sequentially passing through the fourth guide point Q along the guide track line K ₄ Move to the fifth guide point Q ₅ 。

In the second stage of opening, the door 30 is opened by G using the hinges (the guide 50 and the guide 60) as reference ₃ Open to G _max In the process of (1), the movement trend of the center point I along with the movement of the center line segment PQ is I ₃ →I ₄ →I ₅ I.e., during the opening of the door 30, the center point I of the shaft center moves inward relative to the hinge; during the opening process, the axis line segment PQ is defined by P ₃ Q ₃ Rotated clockwise and moved inward in turn to P ₄ Q ₄ 、P ₅ Q ₅ A place; namely the movement trend of the axle line segment PQ is P ₃ Q ₃ →P ₄ Q ₄ →P ₅ Q ₅ 。

Since the guide portion 50 and the guide portion 60 are provided on the hinge fixed to the case 10, the axis line segment PQ represents the movement of the door 30; the following is obtained: the door 30 is formed by using the case 10 as a referenceG ₃ Open to G _max The door 30 is kept rotating clockwise and moves inward with respect to the case 10 throughout the course of the process. That is, the arrangement of the present embodiment realizes that the door 30 is opened and moves inward by a certain distance, and compensates the outward displacement of the first side edge W caused by the simple rotation of the door 30, so as to effectively avoid the interference between the door 30 and the cabinet 100.

In combination, the door body 30 is opened from the closed state to G _max The door 30 moves around a dynamically changing point (movement trend I of center point I of axis) of full inward movement ₀ →I ₁ →I ₂ →I ₃ →I ₄ →I ₅ ) Rotation thereby moving the door body 30 inward; in addition, with the case 10 as a stationary reference, the door 30 always has a tendency to move inward, so as to compensate for the outward displacement of the first side edge W caused by the simple rotation of the door 30, thereby effectively avoiding interference with the cabinet 100 when the door 30 is opened.

See the motion trend diagrams of the center point I in the axle center in FIG. 17 and FIG. 18; in some embodiments of the present application, during the opening process of the door 30, the center point I of the axle center moves in a direction away from the first body sidewall and near the pick-and-place opening, and then moves in a direction away from the first body sidewall and the pick-and-place opening. I.e., the door 30 has a tendency to move inwardly and rearwardly and then inwardly and forwardly when opened.

When the door body 30 is opened to G', the distance between the midpoint I of the axle center and the picking and placing port is minimum; wherein G' is E [ G ] ₃ ，G ₄ ]At this time, the center point I is on the center point track line I ₃ To I ₄ On the segment. In the process of opening the door body 30 from the closed state to G', the center point I of the axle center moves inwards and towards the direction approaching the picking and placing port; the door 30 is opened from G' to G _max In the process of (1), the center point I of the axle center moves inwards and far away from the pick-and-place opening to increase the distance between the door body 30 and the box body 10, thereby reducing the maximum opening angle G of the cabinet 100 to the door body 30 caused by inwards movement of the door body 30 in the process of opening from the closed state to G _max Effectively increasing the maximum opening angle G of the door body 30 _max The user can conveniently take the object.

When the door body 30 is installed in the cabinet 100,the door body 30 is oriented at a maximum angle G from 90 DEG _max In the process of continuing to open, assuming that the door body 30 only uses the central axis of the fixed first door shaft 41 as the rotation axis to perform simple rotation movement, under the limiting action of the cabinet 100, the maximum angle that the door body 30 can open is recorded as G' _max 。

In this embodiment, when the door body 30 is opened to 90 °, the door side wall 32 is parallel to the plane of the access opening (approximately parallel, the included angle between the two planes is smaller than 3 °), and the door front wall 31 is parallel to the reference plane M ₀ Parallel (approximately parallel, the included angle between two planes is less than 3 °). The door body 30 is oriented at a maximum angle G from 90 DEG _max In the process of continuing to open, the center point I of the axle center moves in a direction away from the side wall of the first body and the pick-and-place opening (I ₄ →I ₅ ) I.e., the door 30 has a tendency to move inward and forward, i.e., the door 30 moves in a direction away from the cabinet 100 and the case 10; when the refrigerator is installed in the cabinet 100, the maximum angle at which the door 30 can be opened due to the restriction of the cabinet 100 is denoted as G _max The arrangement in this embodiment is such that the door 30 is oriented at a maximum angle G from 90 DEG _max To reduce the restriction of the cabinet 100 to the door 30 so as to allow the door 30 to be opened at a maximum angle G _max Larger; namely G is _max ＞G` _max 。

As one way of being able to be provided, during the opening of the door body 30, the displacement of the first door shaft 41 moving in the direction approaching the access opening is positive, and the displacement of the first door shaft 41 moving away from the access opening is negative.

The door body 30 is opened from the closed state to G ₁ In the course of (a) the displacement (displacement along the Y-axis direction) of the door 30 relative to the case 10 near the pick-and-place port per unit angle of rotation opening is denoted as ζ ₁ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, xi ₁ ＞0；

The door body 30 is formed by G ₁ Open to G ₂ In the course of (a) the displacement (displacement along the Y-axis direction) of the door 30 relative to the case 10 near the pick-and-place port per unit angle of rotation opening is denoted as ζ ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, xi ₂ > 0; wherein, xi ₂ ＜ξ ₁ 。

In some embodiments of the present application, the hinge is provided with a first mating portion at one end far away from the first body sidewall, and a second mating portion is provided at the lower end of the door body 30, where the second mating portion is used to mate with the first mating portion to lock and unlock the door body 30 and the box body 10. Specifically, the first mating portion is a stop portion disposed on a side of the hinge away from the first body sidewall, and the second mating portion is a hooking portion disposed on the door body 30.

The door body 30 is opened from the closed state to G ₁ In the process of (a), the first matching part and the second matching part are gradually separated; in this process, the door body 30 moves inward and moves rapidly to a side close to the access opening, so as to reduce the effect of the first mating portion on the second mating portion, reduce the deformation of the second mating portion, reduce the resistance of the first mating portion to be separated from the second mating portion, and thereby accelerate the separation of the first mating portion and the second mating portion.

At the door body 30, G is used ₁ Open to G ₂ In the course of (a), the displacement of the door 30 near the pick-and-place opening relative to the case 10 per unit angle of rotation opening is reduced (ζ ₂ ＜ξ ₁ ) The method comprises the steps of carrying out a first treatment on the surface of the The interference between the door side wall 33 and the box 10 caused by the rotation of the door side wall 33 to the side close to the picking and placing opening in the process is effectively avoided, and the effectiveness of the rotary opening of the door 30 is ensured.

In some embodiments of the present application, as shown in connection with fig. 4-9, the door 30 is rotated from a closed position to a maximum angle G _max During the process, the centroid-plane F is located all the way between the first door axis 41 and the second door axis 42. That is, the door 30 is opened in all the strokes (0 ° to G _max ) In this way, the centroid plane F is always located between the first door shaft 41 and the second door shaft 42, so that the door body 30 is better stressed, and the door body 30 is more stable to open.

As an alternative, the centroid plane F is the perpendicular bisector of the axis line segment PQ in the projection of the top wall of the case 10. In the process of opening the door body 30 from the closed state, as the opening angle increases, the moment of the door body 30 increases, the stability of the door body 30 is deteriorated, and shaking is easily generated; in the present embodiment, the door 30 is opened from the closed state to G _max Throughout (not less than 90 °), the centroid plane F is located between the first door axis 41 and the second door axis 42 (even through the center of the axis line segment PQ)Effectively enhancing the stability of the overall process of opening the door 30.

In some embodiments of the present application, referring to fig. 3, in this embodiment, an angle plane formed by the door front wall 31 and the door side wall 32 is denoted as an angle plane H, and a dihedral angle formed by a plane of the door front wall 31 and a plane of the door side wall 32 is a first angle σ=90°; the angular plane H is moved with the door 30 relative to the case 10 during the opening of the door 30 relative to the case 10.

The central axis of the first door spindle 41 is located on the angle plane H. That is, the angular plane H passes through the guide center axis P. That is, in the projection of the top wall of the case 10, the guide center axis P is located on the angular plane H; the first side edge W of the door body 30 can be beyond the reference plane M in the process of rotating and opening ₀ Effectively avoiding interference between the door 30 and the cabinet 100; in addition, the guiding central axis P is located on the angle plane H, so as to facilitate detecting whether the first door body 41 and the second door shaft 42 meet the machining precision requirement after being formed on the door body 30, thereby realizing high-precision matching, and meeting the complex motion that the fine control door body 30 completes rotation and moves inwards.

In some embodiments of the present application, the guide center axis Q moves to the midpoint of the guide trajectory line K as the guide center axis P moves to the midpoint of the guide trajectory line S. The arrangement of the guide track line S and the guide track line K ensures that the first door shaft 41 and the second door shaft 42 move more uniformly in the opening process of the door body 30, and the opening fluency of the door body 30 is further improved.

As an alternative, the midpoint of the guide path S is the point at which the distance from the first body side wall is smallest, i.e. the midpoint of the guide path S is the third positioning point P ₃ The method comprises the steps of carrying out a first treatment on the surface of the The midpoint of the guide track line K is a third guide point Q ₃ The method comprises the steps of carrying out a first treatment on the surface of the Namely P ₃ Is P ₁ ⌒P ₄ Is the midpoint of Q ₃ Is Q ₁ ⌒Q ₄ Is defined by a central point of the lens. That is, the guide track line S is at the fourth guide point P ₄ The guiding track line K is at a fourth guiding point Q as the terminal end point ₄ Is the terminal end point.

As a settable way, the central axis P is guided to move aboveWhen the center point of the track line S is located, the guide center axis Q is moved to the maximum angle G at which the door body 30 is opened, with the setting of the center point of the guide track line K _max ∈[90°，125°]Any one of which; the above arrangement effectively ensures the maximum angle of opening the door body 30, and facilitates the user to take and put articles.

As an implementation manner, as shown in fig. 4-10, a first reference plane M is further defined in the present embodiment ₁ And a second reference plane M ₂ . Wherein, referring to FIG. 10, a first reference plane M ₁ Is a plane of reference M ₀ A plane parallel to and perpendicular to the plane of the pick-and-place opening, a first reference plane M ₁ Lying in a reference plane M ₀ And the distance between the two planes is alpha, i.e. the first reference plane M ₁ A plane on which the cabinet 100 is located near the inner wall of the case 10; second reference plane M ₂ Is the plane of the access opening of the storage room. First reference plane M ₁ And a second reference plane M ₂ The door 30 does not move with respect to the case 10 during the opening process, and is a reference plane that remains stationary with respect to the case 10.

In the process of opening the door body 30, the first side edge W moves along with the opening of the door body 30, and the movement track of the first side edge W is recorded as a first side edge track line T; in this embodiment, in the projection of the top wall of the case 10, the first side edge trajectory line T is an arc; i.e., the first side edge W moves in an arc during the opening of the door body 30. In this embodiment, the center of the circle where the first side edge trajectory line T is located is denoted as the first side edge center O ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, in the projection of the top wall of the box body 10, the center O of the first side edge ₃ A guiding circle center O of the circle where the guiding track line S is located ₁ The straight line is marked as O ₁ O ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, straight line O ₁ O ₃ With a reference plane M ₀ Perpendicular to each other. That is, when the door body 30 is closed, the door front wall 31 is parallel to the access opening, and the door front wall 31 is perpendicular to the door side wall 32 and the first body side wall, the straight line O ₁ O ₃ Parallel to the door front wall 31 when the door body 30 is closed.

In some embodiments of the present application, in projection of the top wall of the case 10, the first side edge center O ₃ At the guiding circle center O ₁ One side adjacent to the first body sidewall.

In the opening process of the door body 30, the first side edge W approaches the first reference plane M along with the increase of the opening angle of the door body 30 ₁ And a second reference plane M ₂ Is moved in a circular arc in the direction of the first reference plane M ₁ And away from the second reference plane M ₂ Is moved in a circular arc in the direction of (a).

In the present embodiment, in the projection of the top wall of the case 10, the door 30 is opened at an angle of 0 ° G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max When the positions of the first side edges W are marked as W ₀ 、W ₁ 、W ₂ 、W ₃ 、W ₄ 、W ₅ The method comprises the steps of carrying out a first treatment on the surface of the Wherein W is ₀ 、W ₁ 、W ₂ 、W ₃ 、W ₄ 、W ₅ Are all in the circle O ₃ And (3) upper part.

Wherein the start guidance point P ₀ And a fourth guidance point P ₄ The straight line is marked as a first straight line P ₀ P ₄ The method comprises the steps of carrying out a first treatment on the surface of the First straight line P ₀ P ₄ Parallel to the first body sidewall; i.e. a first straight line P ₀ P ₄ Is vertical to the taking and placing port; w (W) ₀ W ₄ The straight line is marked as a second straight line W ₀ W ₄ The method comprises the steps of carrying out a first treatment on the surface of the As a settable way, a first straight line P ₀ P ₄ And a second straight line W ₀ W ₄ Parallel to each other.

Wherein the radius of the circle where the first side edge track line T is recorded as r ₃ Wherein r is ₃ ＞r ₁ The method comprises the steps of carrying out a first treatment on the surface of the As a settable way, r ₃ ：r ₁ ∈[2，2.5]. In the above embodiment, the movement locus of the first side edge W is smooth, so that collision with the cabinet 100 in the opening process of the door body 30 is effectively avoided, and the embedded design of the refrigerator is realized.

In the process of opening the door body 30, the second side edge N moves along with the opening of the door body 30, and the movement track of the second side edge N is marked as a second side edge track line E; in this embodiment, in the projection of the top wall of the case 10, the second side edge trajectory line E is an arc; i.e., the second side edge N makes an arc motion during the opening of the door body 30. This embodiment In the method, the circle center of the circle where the second side edge track line E is positioned is recorded as a second side edge circle center O ₄ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, in the projection of the top wall of the box body 10, the center O of the second side edge ₄ Is positioned at the guiding circle center O ₂ Near the first reference plane M ₁ And away from the second reference plane M ₂ One side.

In the opening process of the door body 30, the second side edge N is first far from the first reference plane M along with the increase of the opening angle of the door body 30 ₁ And near the second reference plane M ₂ Is moved in a circular arc in a direction away from the first reference plane M ₁ And a second reference plane M ₂ Is moved in a circular arc in the direction of (a). As a settable way, the door body 30 is opened to G ₃ When the second side edge N and the second reference plane M ₂ Is the smallest. I.e. N ₃ The point with the smallest distance between the second side edge track line E and the plane where the pick-and-place port is located;

in the present embodiment, in the projection of the top wall of the case 10, the door 30 is opened at an angle of 0 ° G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max In the process, the positions of the second side edges N are sequentially marked as N ₀ 、N ₁ 、N ₂ 、N ₃ 、N ₄ 、N ₅ The method comprises the steps of carrying out a first treatment on the surface of the Wherein N is ₀ 、N ₁ 、N ₂ 、N ₃ 、N ₄ 、N ₅ Are all in the circle O ₄ And (3) upper part.

Wherein N is ₃ With the center of the second side edge O ₄ The straight line is marked as a third straight line O ₄ N ₃ The method comprises the steps of carrying out a first treatment on the surface of the Third straight line O ₄ N ₃ Parallel to the first body sidewall; i.e. a second straight line O ₄ N ₃ Is perpendicular to the picking and placing opening.

Wherein the radius of the circle where the second side edge trace E is located is denoted as r ₄ Wherein r is ₃ ＞r ₄ The method comprises the steps of carrying out a first treatment on the surface of the The second side edge N has a smooth movement track, so that the door seal 2 is effectively prevented from being extruded in the initial stage in the opening process of the door body 30.

In the opening process of the door body 30, the side seal edge F moves along with the opening of the door body 30, and the movement track of the side seal edge F is recorded as a side seal edge track J; in the present embodiment, in the projection of the top wall of the case 10, the side seal edge trace J is oneA circular arc; namely, the side seal edge track line J moves in an arc shape during the opening process of the door body 30. In this embodiment, the center of the circle where the trace line J of the side seal edge is located is denoted as the center O of the side seal edge ₅ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, in the projection of the top wall of the box body 10, the center O of the side seal edge ₅ Is positioned at the guiding circle center O ₂ And (5) overlapping. It should be noted that "overlapping" includes the two points being exactly equal in the standard mathematical definition, and also includes the two-point relationship in which the distance between the two points is less than 0.2 mm. I.e. in this embodiment, circle O ₅ With O ₂ Is concentric circles. That is, in this embodiment, the circle on which the guide track line K is located and the circle on which the side seal edge track line J is located are concentric circles. Wherein the radius of the circle where the side seal edge trace J is positioned is recorded as r ₅ Wherein r is ₅ ＞r ₂ 。

In the opening process of the door body 30, along with the increase of the opening angle of the door body 30, the side seal edge F is firstly far away from the first reference plane M ₁ And near the second reference plane M ₂ Is moved in a circular arc in a direction away from the first reference plane M ₁ And a second reference plane M ₂ Is moved in a circular arc in the direction of (a). As an alternative, when the door 30 is opened to g″, the side seal F and the second reference plane M ₂ Is the smallest. Wherein G' is E (G) ₁ ，G ₂ ) To avoid squeezing the door seal 2.

In the present embodiment, in the projection of the top wall of the case 10, the door 30 is opened at an angle of 0 ° G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max When the positions of the first side edges W are marked as F ₀ 、F ₁ 、F ₂ 、F ₃ 、F ₄ 、F ₅ The method comprises the steps of carrying out a first treatment on the surface of the Wherein F is ₀ 、F ₁ 、F ₂ 、F ₃ 、F ₄ 、F ₅ Are all in the circle O ₅ And (3) upper part.

Referring to fig. 19 to 23, it is assumed that the door body 30 is rotated to an adjacent latter state about the rotation center I of the former state; under the movement trend, when the door body 30 is opened, the first side edges W are sequentially positioned at W' relative to the hinge; the second side edges N are sequentially positioned at N' relative to the hinge; the positions of the side seal edges F relative to the hinge are sequentially positioned at F'. For example: in FIG. 19, in phantomThe door 30 is positioned by the line indicating that the door 30 is wound around I ₀ Rotated to G ₁ The position reached at that time; the door 30 shown in solid line is rotated and opened to G in the arrangement of the present application ₁ The position reached at that time; in fig. 20, the door 30 shown by the broken line is positioned such that the door 30 is opened to G in a rotating manner of the present application ₁ Then, the door body 30 is used for G ₁ Center point I of axial center of time ₁ (rotation center I of previous state) as center to G ₂ The position reached at that time; the door 30 shown in solid line is rotated and opened to G in the arrangement of the present application ₂ The position reached at that time; the same is true for reasons 21-23.

In comparison with the mode in which the door body 30 rotates about the rotation center I in the previous state, the arrangement of the present application is as follows:

the door body 30 is opened from the closed state to G ₃ In the process, in the application, the positions W of the first side edges are all positioned on one side of the W' far away from the side wall of the first body and close to the picking and placing port; the second side edges are positioned at the positions N which are respectively positioned at one side of the N' far away from the side wall of the first body and close to the picking and placing port; the position F of the side sealing edge is positioned at one side of F' far away from the side wall of the first body and close to the picking and placing opening. That is, the door 30 is opened from the closed state to G ₃ The door 30 has a tendency to move inwardly and rearwardly during the course of the procedure.

The door body 30 is formed by G ₃ Open to G _max In the process, in the application, the position W of the first side edge is positioned at one side of W' far away from the side wall of the first body and the picking and placing port; the second side edges are positioned at the positions N and are positioned at one side of the N' away from the side wall of the first body and the taking and placing port; the position F of the side sealing edge is positioned at one side of F' away from the side wall of the first body and the taking and placing opening. That is, the door body 30 is formed by G ₃ Open to G _max The door 30 has a tendency to move inwardly and forwardly during the course of the procedure.

Example two

The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the specific positions of the guide portion 50 and the guide portion 60 are different. Specifically, as shown in FIG. 24, in the present embodiment, G ₃ ＝45°，G ₄ ＝90°，P ₀ 、P ₄ 、Q ₀ On the same straight line, and straight line P ₀ P ₄ Parallel to the first body sidewall. In addition, P ₄ 、Q ₄ On the same straight line, and straight line P ₄ Q ₄ Parallel to the plane of the first pick-and-place port; the above arrangement makes the travel distribution of the first door spindle 40 moving relative to the guide portion 50 more uniform, and makes the door body 30 have stability, unity and fluency in the whole process of opening.

In some embodiments of the present application, the door 30 is opened by a maximum angle G _max ＝G ₄ For example, as shown in fig. 25, the first door shaft 41 and the second door shaft 42 are provided on the door body 30, and the guide groove are provided on the hinge; the door 30 is rotated about a dynamic point that is fixed relative to the door position during opening of the door 30, which is the center point (center point I) of the line connecting the first door spindle 41 and the second door spindle 42.

When the door body 30 is closed, the door side wall 32 is flush with the first body side wall of the box body, and the guide center axis P is at a distance a from the first body side wall of the box body; in this embodiment, the guide center axis P is also a from the door front wall 31 on the premise of ensuring that the door front wall 31 is flush with the first body side wall of the case when rotated 90 °, that is, the guide center axis P is (a, a) in the XOY coordinate system when the door body 30 is closed.

The maximum distance between the connecting line (PP') of the two end points of the guide groove and the point on the guide track line S is b, and the minimum distance between the guide track line S and the first body side wall is F (the maximum distance between F and the guide track line S is b). When the guide center axis P moves to the point F and the rotation angle is 45 ° during the rotation and opening of the door 30, the distance between the first side edge W of the door 30 and the first body sidewall of the box 10 is the maximum

If the center axis P is guided to move to the point F when the rotation angle of the door 30 does not reach 45 ° or exceeds 45 °, the first side edge W of the door 30 is spaced from the first body sidewall of the case 10 by a distance smaller than

To sum up, if the maximum distance between the first side edge and the case during the opening of the door 30 needs to be limited, the limitation can be performed by controlling the sizes of a and b, and the limitation can also be performed by controlling the opening angle of the door 30 when the central axis P is guided to move to the point F when the door 30 is opened. The above method for setting the distance beyond the first body side wall when the door body 30 is opened is not limited to the setting of the opening angle in the present embodiment.

Example III

The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the specific positions of the guide portion 50 and the guide portion 60 are different. Specifically, as shown in fig. 26, in this embodiment, P ₀ 、P ₅ 、Q ₀ On the same straight line, and straight line P ₀ P ₅ Parallel to the first body sidewall. I.e. the two end points of the guide track line S are connected in parallel with the first body side wall. In the present embodiment, the maximum angle G of opening of the door 30 _max =122°. The arrangement ensures that the maximum angle of the door body 30 which can be opened is effectively increased, thereby facilitating the user to take and put articles; on the other hand, P ₀ 、P ₅ 、Q ₀ Make things convenient for product processing back to carry out effective detection to machining precision on same straight line, ensure the application and set up the high accuracy of structure to the realization is to the accurate control of door body 30.

Example IV

The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the specific positions of the guide portion 50 and the guide portion 60 are different. Specifically, as shown in fig. 27, in the present embodiment, the guiding track line S is located on the side of the guiding track line K close to the door front wall, and the guiding point Q is initiated ₀ At the initial guidance point P ₀ One side close to the side wall of the first body and the taking and placing opening. The arrangement makes full use of the transverse dimension of the hinge (the guide track line S and the guide track line K partially coincide in the X-axis direction), so that the maximum angle of the door body 30 which can be opened is effectively increased, and a user can conveniently take and put articles.

Example five

The embodiment and the embodiment The principle of the first embodiment is the same, and the main difference is that the specific positions of the guide portion 50 and the guide portion 60 are different. Specifically, as shown in fig. 28, in this embodiment, the guiding track line S is located at a side of the guiding track line K near the first body sidewall, and the guiding point Q is initiated ₀ At the initial guidance point P ₀ One side far away from the side wall of the first body and close to the picking and placing opening. The above arrangement makes more full use of the longitudinal dimension of the hinge (the guide track line S coincides with the guide track line K in the Y-axis direction), so that the maximum angle at which the door body 30 can be opened is effectively increased, and the user can conveniently pick and place articles.

During the opening process of the door body 30, the guide center axis P moves along the guide track line K in a direction away from the first body sidewall and then moves in a direction toward the first body sidewall. Specifically, during the opening process of the door body 30, the guide central axis P moves along the guide track line K in a direction away from the first body side wall and close to the pick-and-place opening, then moves in a direction away from the first body side wall and away from the pick-and-place opening, and then moves in a direction close to the first body side wall and away from the pick-and-place opening.

The movement trend of the door body 30 during opening is the same as that of the first embodiment, and the door body moves in the direction approaching the first body sidewall and the access opening, and then moves in the direction separating from the first body sidewall and approaching the access opening.

The position analysis process to which the first door shaft 41 and the second door shaft 42 move at a specific angle is not described herein.

Example six

The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the specific positions of the guide portion 50 and the guide portion 60 are different. Specifically, as shown in fig. 29, in this embodiment, the guiding track line S is located at one side of the guiding track line K near the pick-and-place port, and the guiding point Q is started ₀ At the initial guidance point P ₀ One side far away from the side wall of the first body and the taking and placing port; guide circle center O ₁ Is positioned at one side of the guide track line S far away from the picking and placing port and guides the circle center O ₂ Is positioned on one side of the guide track line K near the pick-and-place opening. The above arrangement makes use of the hinge transverse dimension (the overlapping part of the guide track line S and the guide track line K in the X-axis direction is more) to enable the door body 30 to be openedThe maximum angle is effectively increased, and a user can conveniently take and put articles.

In addition, in this embodiment, during the opening process of the door body 30, the movement trend of the center point I of the axis is I ₀ →I ₁ →I ₂ →I ₃ →I ₄ →I ₅ The center point I of the axle center is obtained to move inwards and forwards in the whole course, so that interference with the cabinet when the door body 30 is opened is avoided, the limit of the cabinet 100 on the maximum opening angle of the door body 30 can be reduced, the maximum opening angle of the door body 30 is effectively increased, and a user can conveniently take and put articles.

In this embodiment, the door body 30 moves in an arc manner from the closed position to the maximum angle position during the process of opening the door body.

Example seven

In the first to sixth embodiments of the present application, the guiding portion 50 and the guiding portion 60 are both regular circular arc grooves. Referring to fig. 3-29, in particular, in this embodiment, the guiding track line S is an arc, and the guiding track line K is also an arc. Correspondingly, the curved groove walls of the guide portion 50 and the guide portion 60 are also in an arc shape.

With the above arrangement, the first door shaft 41 moves smoothly and smoothly with respect to the guide portion 50, and the second door shaft 42 moves smoothly and smoothly with respect to the guide portion 60, thereby ensuring smoother opening of the door body 30. The door spindle is arranged to move relatively to the arc-shaped guide part or the guide part, so that the fluency of movement of the door spindle is good, the fluency of opening of the door body 30 is effectively improved, and the service life of the hinge spindle is prolonged. Additionally, in some embodiments of the present application, the full motion of second door shaft 42 relative to guide 60 is uninterrupted during opening of door body 30.

In this embodiment, the movement of the first door shaft 41 relative to the guide portion 50 and the movement of the second door shaft 42 relative to the guide portion 60 are both the movement of the roller relative to the cam. For roller follower cam mechanisms, the size of the roller radius often affects the shape of the actual cam profile curve, so the roller radius must be reasonably selected.

Wherein ρ: theoretical profile radius; ρ': actual profile radius; ρ _min : minimum curvature half of convex part of theoretical contour curveDiameter (i.e., radius of curvature of the sharpest portion); r is (r) _T : roller radius; η: theoretical contour, η' actual contour.

As shown in a) of fig. 30, when the theoretical profile curve of the cam is a concave curve, ρ' =ρ+r _T Therefore r _T The magnitude of (c) is not limited by p, and the cam working profile is always a smooth curve regardless of the roller radius.

When the theoretical profile curve of the cam is a convex curve, ρ=ρ' -r _T ：

(1) As shown in b) of fig. 30, when ρ _min ＞r _T ρ' > 0, the actual profile curve is a smooth curve;

(2) As shown in c) of fig. 30, when ρ _min ＝r _T When ρ' =0, a sharp point is generated on the actual profile curve of the cam, and the sharp point is extremely easy to wear, so that the motion rule of the cam is easy to change and cannot be used;

(3) As shown in d) of fig. 30, when ρ _min ＜r _T When ρ' < 0, the actual contour curves are crossed, and the actual contour curves above the crossing points are cut off during processing, so that the motion rule of the part cannot be realized.

Therefore, in order to make the cam profile neither pointed nor intersected at any position, the roller radius r _T Minimum radius of curvature ρ of the convex portion of the theoretical profile curve must be smaller _min Generally choose r _T ≤0.8ρ _min . If the requirement is not satisfied, the radius of the base circle of the cam is increased, and the cam profile curve is redesigned.

Accordingly, in the present embodiment, the guide trajectory line S corresponds to the cam theoretical profile curve of the guide portion 50, and the guide trajectory line K corresponds to the cam theoretical profile curve of the guide portion 60; in this embodiment, the theoretical profile curve of the cam is a convex curve (convex arc, the guide portion is convex in the direction approaching the side wall of the first body, and the guide portion is convex in the direction approaching the pick-and-place opening); the arc groove wall of the guide part 50 far away from the first body side wall is an actual contour curve, and the arc groove wall of the guide part 60 far away from the pick-and-place opening is an actual contour curve; radius of the first door shaft 41 and the second door shaft 42Also satisfy r _T The size of (1) satisfies the setting (. Rho.) _min ＞r _T ) That is, the door spindle radius is smaller than the minimum curvature radius (arc radius) of the corresponding track line, so as to ensure that the arc side wall of the guide part 50 away from the first body side wall is a smooth arc, and the groove wall of the guide part 60 away from the pick-and-place opening is a smooth arc, so that on one hand, the first door spindle 41 and the second door spindle 42 move more smoothly, and on the other hand, the abrasion of the guide part 50 and the guide part 60 is reduced. I.e. the guide 50 and the guide 60 are essentially provided as cams, effectively avoiding the drawbacks of easy wear caused by the concave structure. In summary, in the present embodiment, the guide track line S and the guide track line K are each provided as an outwardly convex cam curve (an arc of a convex shape).

Example eight

As shown in fig. 31 to 32, in the present embodiment, the door 30 is formed with a receiving portion 81 recessed in a direction away from the hinge at an end portion thereof close to the hinge. The door body 30 includes a front panel 34 formed with a door front wall 31; wherein the receiving portion 81 is located at a side of the front panel 34 near the door rear wall. The first door spindle 41 and the second door spindle 42 are located on the bottom wall of the housing portion 81.

As an arrangement, in the projection of the plane of the top wall of the case 10, the bottom wall of the housing portion 81 has a right-angle trapezoidal shape; the right trapezoid has its upper bottom parallel to the front wall 31 and its lower bottom flush with the rear wall; and the upper bottom is positioned on one side of the lower bottom close to the door front wall 31, the right-angle waist of the right trapezoid is flush with the door side wall 32, and the upper bottom is smaller than the lower bottom.

The extension 402 of the hinge plate 40 includes a first edge, a second edge, a first transition edge, a third edge, a second transition edge, and a fourth edge that are sequentially connected; the first edge is parallel to the fourth edge, and the fourth edge is positioned on one side of the first edge, which is close to the side wall of the first body; the third side is parallel to the plane of the picking and placing opening, namely, the third side is parallel to the front wall 31 of the door body 30 when the door body is closed; the second side is consistent with the bevel edge of the bottom of the accommodating part 81; the first transition edge is used for smoothly transitionally connecting the second edge with the third edge; the second transition edge connects the third edge with the fourth edge in a smooth transition.

As one arrangement, when the door is closed, the distance between the third side of the extension 402 and the upper bottom of the bottom wall of the housing 81 is any one of 2mm to 5 mm.

In the above arrangement, the extension part 402 of the hinge plate 40 does not interfere with the accommodating part 81 during the process of rotating and opening the door 30, so that smooth opening of the door 30 is ensured, and interference with the wall surface of the accommodating part 81 is avoided; and the accommodating portion 81 is located on one side of the front panel 34 close to the door rear wall 33, so that regularity, integrity and aesthetic appearance of the door front wall 31 are effectively ensured.

The present embodiment nine is applicable to any one of the embodiments one to seven.

Example nine

As shown in fig. 33-35, in some embodiments of the present application, the extension 402 of the hinge plate 40 is fixed with a track block on which the guide 50 and the guide 60 are formed.

Referring specifically to fig. 33 to 35, in the present embodiment, a track block provided on a hinge plate 40 corresponding to the lower end of the door body 30 is taken as an example. Specifically, the track block includes a plate body, and an arc-shaped guide groove and a guide portion are formed on the plate body in a recessed manner toward the same side.

The extension 402 has a mounting hole 405 formed therein; the guide groove and the guide part are arranged in the mounting hole 405, and the groove walls of the guide groove and the guide part are matched with the hole wall of the mounting hole 405; the plate body of the track block mates with the extension 402. Wherein the track blocks are interference fit with the mounting holes 405.

As an embodiment, the circumferential groove wall of the guide groove and the circumferential groove wall of the guide part are connected as one body by a transition part 20; the mounting hole 405 is a continuous through hole that mates with the circumferential groove wall of the guide groove, the outer wall of the transition portion 20, and the outer circumferential wall of the track block formed by the connection of the circumferential groove walls of the guide portion. The mounting hole 405 is used as a through hole, and the through transition connection is convenient to process.

The track blocks are made of plastic materials, have self-lubricating property and are wear-resistant; the first door shaft 41 and the second door shaft 42 move smoothly relative to the guide groove and the guide part when the door body 30 is opened. As a settable mode, the track block may be made of POM material, and the POM has the characteristic of strong friction resistance, so that the service life can be prolonged.

As shown in fig. 36 to 41, the arrangement of the first fitting portion and the second fitting portion is described in the present embodiment; as one arrangement, the second engaging portion is provided on the lock block 6 at the lower end of the door body 30. As shown in fig. 36 to 41, the lock block 6 provided at the lower end of the door body 30 will be described as an example; specifically, the second mating portion on the locking block 6 is provided as a locking structure, and specifically, the second mating portion includes a lock hook. The latch hook extends to a side away from the door side wall 32 and is formed by bending to a side close to the door rear wall 33 and the door side wall 32, an opening of the latch hook faces the door side wall 32, and a free end of the latch hook is located at a side thereof close to the door rear wall 33.

Specifically, the door end cover 8 at the lower end of the door body 30 is provided with a receiving groove 80 at a side of the first and second door shafts 41 and 42 away from the door sidewall 32, and the locking block 6 is inserted into the receiving groove 80 and then fastened to the door body 30 by a screw or the like.

Specifically, the latch hook includes a root portion 62 and a hooking portion 61. The root portion 62 is connected to the receiving groove 80 formed on the hinge side of the door end cover 8 and on the side of the first and second door shafts 41 and 42 away from the door side wall 32, and the hooking portion 61 is connected to the root portion 62 and is bent toward the side of the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 62 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 62 and the door body 30, so that only the hooking portion 61 deforms when the latch hook is separated from the stop portion 403. The locking block 6 of the present embodiment is mounted on the side of the door end cover 8 near the hinge, that is, the locking block 6 is fixedly mounted on the outer side of the door body 30.

The first matching part arranged on one side of the hinge plate 40 far away from the first body side wall is provided with a stop part 403, and the stop part 403 and the connecting part 401 of the hinge jointly define a hooking gap 404; i.e. the hooking gap 404 is located at the side of the stop 403 close to the case. When the door body 30 is in a closed state, the free end of the lock hook is accommodated in the hooking gap 404, the stop part 403 is positioned in the lock hook, and the lock hook on the door body 30 hooks the stop part 403 on the hinge plate 40, so that the door body 30 is locked, and the influence on the refrigerating and freezing effects of the refrigerator due to the untight closing of the door body 30 is avoided; when the door body 30 is opened, the latch hook is forced to deform to overcome the blocking of the stop part 403, so that the latch hook is separated from the stop part 403.

As a way of being able to set, the free ends of the hooking portion 61 and the stopping portion 403 are arc-shaped, which is beneficial for the hooking portion 61 to hook the stopping portion 403 or separate from the stopping portion 403 more smoothly along the arc.

As shown in fig. 40 to 42, when the door body 30 is closed from the open state, the free end of the hooking portion 61 gradually approaches the stop portion 403 as the door body 30 rotates to close, and when the hooking portion 61 abuts against the stop portion 403, the door body 10 continues to close, the hooking portion 61 deforms under the action of the stop portion 403, the stop portion 403 enters the hooking portion 61, and the free end of the hooking portion 61 enters the hooking gap 404; the latch hook is locked with the hinge plate 40 to lock the door 30 with the case 10.

As shown in fig. 40-42, when the door 30 is opened from the closed state, the process is opposite to the process of closing the door, and will not be described again. When the door body 30 is closed from the open state to the set angle (set to 7 ° in the present embodiment), the hooking portion 61 releases the elastic energy, and the door body 30 is automatically closed by the hooking portion 61 and the stopper portion 403. As an embodiment, the hooking portion 61 is separated from the stopper portion 403 when the door body 30 is opened from the closed state to the set unlocking angle (set to 5 ° to 8 ° in the present embodiment). The arrangement with the track feature of the embodiment is that the door 30 is mainly rotated in the initial opening stage, so that the latch hook and the stop 403 are quickly separated, and the door 30 is quickly opened.

In some embodiments, the door 30 may be provided with a first protrusion 82 and a second protrusion 83, the first protrusion 82 and the second protrusion 83 together defining a clearance slot 84; the first projection 82 is located substantially on one side of the second projection 83 near the door front wall 31 and the door side wall 32. The root portion 62 is formed with the insertion plate 63, and the insertion plate 63 is inserted into the clearance groove 84, so that deformation of the root portion 62 in the direction from the door front wall 31 to the door rear wall 33 can be prevented by the restriction of the first projection 82 and the second projection 83.

Specifically, the plug board 63 is provided as an arc board; the second protrusion 83 is an arc-shaped plate, the edge of the first protrusion 82 close to the second protrusion 83 is consistent with the shape of the second protrusion 83, and the first protrusion 82 and the second protrusion 83 jointly define an arc-shaped clearance groove 84; the arcuate plate-like tab 63 mates with the arcuate slot 84. The above arc arrangement increases the limiting area of the clearance groove 84 to the root joint portion 62, increases the connection strength of the locking block 6 and the door body 30, and effectively limits the deformation of the root joint portion 62.

In addition, the lock block 6 may be made of POM material, and the POM has a characteristic of high abrasion resistance, thereby improving the service life.

Note that any one of the embodiments of the ninth embodiment and the first to eighth embodiments is mutually applicable.

Examples ten

In the present embodiment, as shown in fig. 41 to 48, the refrigerator includes two oppositely disposed door bodies 30, and the two oppositely disposed door bodies 30 cooperate together to open or close the access opening, as shown in fig. 43. When the two door bodies 30 are closed, the overturning beam 9 is arranged on the lining surface of one door body 30, which is close to one side of the other door body 30. The top wall of the storage chamber of the refrigerator is provided with a track groove 14, and the turnover beam 9 can be matched with the track groove 14 in a sliding way so as to realize the switching of different angles of the turnover beam 9 relative to the door body 30. When the two door bodies 30 are closed, the turnover beam 9 seals the gap between the two door bodies 30 and the box body 10, so as to effectively prevent the cool air from overflowing.

Specifically, the turnover beam 9 includes a door turnover beam rear cover, the door turnover beam rear cover is connected to the door body 30 through a first door hinge and a second door hinge, and the door turnover beam rear cover is elastically connected with the two door hinges by torsion springs respectively; wherein the first door hinge is located above the second door hinge. Wherein, the top of lid has set firmly guide block 13 behind the door beam, and guide block 13 cooperatees with track groove 14 as the rotating member of upset roof beam 9 in order to realize the switching of the different angles of upset roof beam 9 relative to door body 30.

The door hinge and the door rotating beam rear cover are respectively provided with a through hole penetrating through the torsion spring arm, and the torsion springs are used for connecting the upper door hinge and the lower door hinge with the door rotating beam rear cover. The door hinge and the door beam rotating rear cover are connected through a first torsion spring, and the door hinge and the door beam rotating rear cover are connected through a second torsion spring. When the turnover beam 9 rotates around the door hinge, the first torsion spring and the second torsion spring store elastic energy or release the elastic energy, so that the door turnover beam rear cover stably rotates and resets in time.

In the opened state of the door body 30, the turnover beam 9 is tightly attached to the door hinge fixed to one side of the inner liner of the door body 30 due to torsion forces (first torsion spring and second torsion spring) of torsion springs.

The hinge is provided with a first door shaft 41 and a second door shaft 42, and the end part of the door body 30 is provided with a guide part 50 matched with the first door shaft 41 and a guide part 60 matched with the second door shaft; in the closing process of the door body 30, the two hinge shafts move in the corresponding guide parts or guide parts, and the door body 30 moves outwards by a certain distance in the transverse direction relative to the hinge shafts; the acting force for forcing the turnover beam 9 on the door body 30 to turn over can be offset by a part along with the outward movement of the door body 30 while being closed, so that the guide block 13 at the top of the rotary beam cannot effectively complete the turnover and is blocked after entering the track groove 14 on the box body, and the door body 30 with the rotary beam cannot be closed in place, thereby causing the low-temperature storage failure of the refrigerator.

As shown in fig. 44 to 45, when the door 30 is closed from the open state, a closing force F is applied to the door 30 _W In the presence of external force (closing force F _W ) Under the action, the door body 30 is gradually closed, and the door body 30 is closed to reach G _S When the turnover beam 9 is in contact with the track groove 14, the topmost guide block 13 of the turnover beam is contacted with the track groove; the door body 30 is closed to a certain angle G _S After that, the topmost guide block 13 of the turnover beam 9 enters the track groove 14, and in the process of continuously closing the door, as the guide block 13 starts to turn under the pressure action of the groove wall of the track groove 14, the torsion spring compresses in the radial direction, and when the turnover beam 9 turns over G' _F And the critical value of the torsion spring is reached. The torsion spring then begins to extend and act together with the pressure on the walls of the track groove 14 to cause the turnover beam 9 to turn over quickly into position until the door body 30 is closed, at which time the torsion of the torsion spring is released and reaches a relaxed state again. After the door body 30 is closed, the turnover beam 9 contacts with a seal arranged on the door body 30, so that the cold air is effectively prevented from overflowing between two opposite-opening type butt joints. The above corresponds to the turnover beam 9 being turned to G' _F The closing angle of the door body 30 reaches G _F The method comprises the steps of carrying out a first treatment on the surface of the Wherein G is _S ＞G _F . As a settable mode, G _F =45°, i.e. when the turn beam 9 turns overAnd when the angle is 45 degrees, the critical value of the torsion spring is reached. As a settable way, G _S Setting the value to be any one of 6-12 degrees and G _F Setting the value to be any one of 3-5 degrees; the door body 30 is closed to G _F After that, the turnover beam 9 is automatically turned over. The overturning beam 9 overturns to reach G _F The torsion force released by the torsion spring is recorded as the overturning force F in the later stage _N The turnover beam 9 is under the turnover force F _N The device is turned over in place under the action of the handle.

In the process of turning the above turning beam 9, the door closing force F _W Continuing until the door body 30 is closed to G _F After the door body 30 is rotated to be closed to the critical point of the torsion spring, the door closing force F is removed _W The overturning beam 9 can automatically complete overturning.

In summary, the door body 30 is defined by G _S Closing to G _F During the process of (1), the torsion spring compresses, at a closing force F _W Under the combined action of the pressure of the track groove 14 groove wall, the hooking part 61 is elastically deformed; and is closed to G at door 30 _F In the latter closing phase, the turnover beam 9 generates a turnover force F in the form of a torsion spring _N The overturning is completed under the combined action of the pressure of the groove wall of the track groove 14.

In combination with the arrangement of the locking block in the ninth embodiment, and as shown in fig. 41-42, when the door 30 is closed from the open state, the door closing force F is applied to the door 30 _W At the closing force F _W Under the action, the door body 30 is gradually closed; as the door body 30 is rotated to be closed, the free end of the hooking portion 61 gradually approaches the stop portion 403; as shown in fig. 41, when the door 30 is closed to G _B0 When the hooking portion 61 abuts against the stopper portion 403; then at the closing force F _W Under the action of the door body 10, the stop portion 403 interacts with the hooking portion 61, the hooking portion 61 is elastically deformed, and the door closing force F is applied _W The action of the stop 403 gradually enters the hooking gap 404 (i.e., the stop 403 enters the hooking portion 61); as shown in fig. 42, when the door 30 is closed to G _B1 When the door body 30 is closed, the elastic deformation amount of the hooking portion 61 reaches the maximum deformation amount. When the door 30 is closed to G _B1 After that, the hooking portion 82 deforms in advance to store elastic energyReleasing, acting together with the acting force of the stop part 403, the hooking part 82 returns to the loose state, and drives the hooking part 82 to further enter the hooking gap 404, so that the door body 30 is quickly and automatically closed in place until the door body 30 is closed, and the lock hook is locked with the hinge plate 40, thereby realizing the locking of the door body 30 and the box body 10; above, G _B0 ＞G _B1 . As a settable way, G _B0 Setting the value to be any one of 15-20 degrees and G _B1 Setting the value to be any one of 3-8 degrees; the door body 30 is closed to G _B1 After that, the door body 30 is automatically closed. The door body 30 is closed to G _B1 The hooking portion 82 releases elastic energy at a later stage, and the force released by the hooking portion 82 at this stage is referred to as locking force F _S Locking force F _S Causing the door 30 to close in place.

In the closing process of the door body 30, the door closing force F _W Continuing until the door body 30 is closed to G _B1 After the door body 30 is rotated and closed until the elastic deformation of the hooking portion 82 is maximized, the door closing force F is removed _W The door 30 can automatically complete the overturning. And when the door body 30 is closed to G _B1 Back-off of closing force F _W The door 30 has an inertial force FG to keep the door 30 in an original closed motion.

In summary, the door 30 is formed by G _B0 Closing to G _B1 During the closing force F _W Under the combined action of the stop part 403, the hooking part 61 is elastically deformed; when the door body 30 is closed to G _B1 When the hooking part 61 is elastically deformed, the maximum deformation of the door body 30 is reached; at the door body 30, G is used _B1 In the process of closing, the elastic force of the hooking part 82 is released, and the locking force F _S Under the combined action of the elastic force of the hooking portion 82 and the acting force of the stopping portion 403, the door 30 is quickly closed.

The above description has been made of the door closing process in which the rotating beam is provided alone or the hooking portion 82 is provided alone on the door body 30; the above description has been given of the door closing arrangement in which the rotating beam and the hooking portion 82 are simultaneously provided to the door body 30.

As a way of being settable, as shown in FIG. 46, G _B1 ＞G _S I.e. the door 30 closes to G _B1 When the elastic deformation of the hooking portion 61 reaches the maximum value (when the elastic energy is maximum), the guide block 13 at the topmost end of the turnover beam 9 is not in contact with the track groove 14 yet;

In the present embodiment, the closing force F _W From start to shut down until G _B1 The method comprises the steps of carrying out a first treatment on the surface of the I.e. door 30 is closed to G _B1 After that, the closing force F is removed _W The user does not need to apply external force to finish the automatic closing of the door body 30 in place.

At the door body 30, G is used _B1 Continue to close to G _S When the turnover beam 9 is in contact with the track groove 14, the topmost guide block 13 of the turnover beam is contacted with the track groove;

at the door body 30, G is used _S Continue to close to G _F During the process of (1), the door body 30 is under the locking force F _S The elastic force of the hooking part 82 and the acting force and inertial force F of the stop part 403 _G Is closed by the combined action of (a) and (b) the flip-beam 9 is locked by the locking force F _S Inertial force F _G Under the combined action of the pressure of the track groove 14 wall, the torsion spring starts to turn over and compress in the radial direction;

at the door body 30, G is used _F During the continued closing process, the door body 30 is under a locking force F _S The elastic force of the hooking part 82 and the acting force and inertial force F of the stop part 403 _G Continues to close under the combined action of (a) and the flip-beam 9 is under a locking force F _S Force F of overturning _N Inertial force F _G Under the combined action of the pressure of the track groove 14 and the groove wall, the turnover beam 9 can be turned in place quickly.

The above is set in the present embodiment, G _B1 ＞G _S The door body 30 is closed to G _B1 When the elastic deformation of the hooking portion 61 reaches the maximum value, the topmost guide block 13 of the turnover beam 9 is not in contact with the track groove 14, and the locking force F generated by the locking hook structure can be utilized _S Inertial force F of door 30 _G The turnover of the turnover beam 9 is promoted, and the situation that the turnover beam 9 cannot be turned in place effectively due to the fact that the door body 30 rotates and moves outwards to counteract the acting force for promoting the turnover of the turnover beam 9 in the closing process of the door body 30 is reduced.

Above, in the closing process of the door 30, the stop portion and the latch hook structure reach G when the door 30 is closed _B1 After that, as the closing angle of the door body 30 decreases, the locking force F _S And continuously decays.

As another settable mode, G _B1 ＝G _S The door body 30 is closed to G _B1 (G _S ) When the elastic deformation of the hooking part 61 reaches the maximum value, the guide block 13 at the topmost end of the turnover beam 9 starts to contact with the track groove 14; it can also fully utilize the locking force F generated by the locking hook structure _S Inertial force F of door 30 _G The turnover of the turnover beam 9 is promoted, and the situation that the turnover beam 9 cannot be turned in place effectively due to the fact that the door body 30 rotates and moves outwards to counteract the acting force for promoting the turnover of the turnover beam 9 in the closing process of the door body 30 is reduced. At this time, the second contact guide point coincides with the first contact guide point.

As a settable way, G _B1 ∈[G _S ，G _S +3°]To avoid the locking force F when setting _S Excessive attenuation, resulting in the door 30 closing to G _B1 The rear roll-over beam 9 cannot roll over effectively into place.

In this embodiment, under the track setting of the first embodiment; the door body 30 is closed to G _B1 When the first door shaft 41 is positioned at the first contact positioning point relative to the guide part 50, the second door shaft 42 is positioned at the first contact guiding point relative to the guide part 60;

the door body 30 is closed to G _S When the first door shaft 41 is positioned at the second contact positioning point relative to the guide part 50, the second door shaft 42 is positioned at the second contact guiding point relative to the guide part 60;

the door body 30 is closed to G _F When the first door shaft 41 is positioned at a third contact positioning point relative to the guide part 50, the second door shaft 42 is positioned at a third contact guiding point relative to the guide part 60;

wherein the first contact positioning point, the second contact positioning point and the third contact positioning point are all positioned on the guide track line S, and the first positioning point P ₁ The first contact anchor point, the second contact anchor point, and the third contact anchor point are sequentially close to the door front wall 31 and far from the door side wall 32. The first contact guide point, the second contact guide point and the third contact guide point are all positioned on the guide track line K, and the first guide point Q ₁ A first contact guide point, a second contact guide point, a third contact guide point, and a door side wall 32 and a door front wall 31 in this order.

As another embodiment, as shown in FIG. 47, G _F ＞G _B1 That is, when the door 30 is closed to GF and the turnover beam 9 turns to the torsion spring threshold, the elastic deformation amount of the hooking portion 61 does not reach the maximum deformation amount yet.

At the door body 30, G is used _F Continue to close to G _B1 During the process of the door body 30 closing the door F _W The elastic force of the hooking part 82 and the acting force of the stop part 403 are combined to continuously close, and the turnover beam 9 is closed under the closing force F _W Force F of overturning _N Overturning under the combined action of the pressure of the track groove 14 groove wall; the door body 30 is closed to G _B1 When the hooking portion 61 is elastically deformed, the maximum deformation is reached.

At the door body 30, G is used _B1 During the continued closing process, the door body 30 is under a locking force F _S The hooking part 82 continues to close in place under the combined action of the elastic force of the hooking part and the acting force of the stopping part 403; the flip beam 9 is under locking force F _S Force F of overturning _N The track groove 14 is quickly turned in place under the combined action of the pressure of the groove walls.

Above, in the closing process of the door 30, the stop portion and the latch hook structure reach G when the door 30 is closed _F Thereafter, the door body 30 is moved outward during closing to cause a flipping force F _N And continuously decays.

In the closing process of the door body 30, the stop part and the latch hook structure reach G when the door body 30 is closed _B1 After that, as the closing angle of the door body 30 decreases, the locking force F _S And continuously decays.

As a settable way, G _B1 ∈(G _F ，G _F -1°]To avoid the overturning force F when setting _N Locking force F _S Excessive attenuation, thereby effectively utilizing the turning forceF _N Locking force F _S To allow the door body 30 to be quickly closed in place and the roll-over beam 9 to be quickly rolled over in place.

In this embodiment, under the track setting of the first embodiment;

the door body 30 is closed to G _B1 When the first door shaft 41 is positioned at the first contact positioning point relative to the guide part 50, the second door shaft 42 is positioned at the first contact guiding point relative to the guide part 60;

wherein the first contact positioning point and the third contact positioning point are both positioned on the linear track section of the guiding track line S, and the first positioning point P ₁ The third contact anchor point, the first contact anchor point, are in turn close to the door front wall 31 and far from the door side wall 32. The first contact guide point and the third contact guide point are both positioned on the guide track line K, and the first guide point Q ₁ The third contact guide point, the first contact guide point are sequentially adjacent to the door side wall 32 and the door front wall 31.

In the present embodiment, can be set up, G _S ＝G _B0 That is, when the topmost guide block 13 of the turnover beam 9 contacts the track groove 14, the hooking portion 61 abuts against the stopper portion 403. To exert a closing force F _W Under the action of the spring force, the torsion spring and the hooking part of the turnover beam 9 synchronously start to deform and accumulate elastic energy, and then the elastic energy is released successively; effectively improves synchronous mobility, reduces the closing force F applied by a user in the process of opening the door body 30 _W The stage number improves the experience of the user.

As another embodiment, as shown in FIG. 48, G _B1 ＝G _F I.e. the door 30 closes to G _B1 When the elastic deformation of the hooking part 61 reaches the maximum deformation, the turnover beam 9 turns to the critical value of the torsion spring.

In the present embodiment, the closing force F _W From start to shut down until G _B1 (G _F ) When in use; i.e. door 30 is closed to G _B1 After that, the closing force F is removed _W The user can finish the operation without applying external forceThe door 30 is automatically closed in place.

At the door body 30, G is used _B0 Closing to G _B1 The method comprises the steps of carrying out a first treatment on the surface of the The door body 30 is under the closing force F _W The elastic force of the hooking part 82 and the acting force of the stop part 403 are combined to continuously close, and the turnover beam 9 is closed under the closing force F _W The torsion spring is compressed to store elastic potential energy under the joint action of the pressure of the track groove 14 groove wall; the door body 30 is closed to G _B1 (G _F ) When the elastic deformation of the hooking part 61 reaches the maximum deformation, the turnover beam 9 turns to the critical value of the torsion spring;

the door body 30 is formed by G _B1 (G _F ) During the continued closing process, the door body 30 is under a locking force F _S The hooking part 82 continues to be closed in place under the action of the elastic force of the stopping part 403; the flip beam 9 is under locking force F _S Force F of overturning _N The pressure of the walls of the track groove 14 works together to quickly flip into place.

Setting G in the present embodiment above _B1 ＝G _F I.e. the door 30 closes to G _B1 (G _F ) When the elastic deformation of the hooking part 61 reaches the maximum deformation, the turnover beam 9 turns to the critical value of the torsion spring, and the turnover force F can be fully utilized _N Locking force F _S To allow the door body 30 to be quickly closed in place and the turnover beam 9 to be quickly turned in place, and to reduce the occurrence of the situation that the turnover beam 9 cannot be effectively turned in place due to the counteraction of the acting force for causing the turnover beam 9 to turn over caused by the rotation and outward movement of the door body 30 during the closing of the door body 30.

Above, in the closing process of the door 30, the stop portion and the latch hook structure reach G when the door 30 is closed _B1 (G _F ) Thereafter, the door body 30 is moved outward during closing to cause a flipping force F _N Continuously attenuating; in addition, as the closing angle of the door body 30 decreases, the locking force F _S And continuously decays.

In this embodiment, G _B1 ＝G _F At a turning force F _N Locking force F _S Synchronous mutual promotion when the locking forces are all maximum, and the locking force F is fully enlarged _S The angular range of the turning beam 9 is facilitated.

In this embodiment, in embodiment oneIs arranged under the track of the track; the door body 30 is closed to G _B1 (G _F ) When the first door shaft 41 is positioned at the first contact positioning point relative to the guide part 50, the second door shaft 42 is positioned at the first contact guiding point relative to the guide part 60;

wherein the first contact positioning point is positioned on the straight track section of the guiding track line S, and the first positioning point P ₁ The first contact anchor points are in turn close to the door front wall 31 and far from the door side wall 32. The first contact guide point is positioned on the guide track line K, and the first guide point Q ₁ The first contact guide points are sequentially adjacent to the door side wall 32 and the door front wall 31.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A refrigerator, comprising:

2. The refrigerator of claim 1, wherein the door body has a door front wall that is remote from the cabinet when the door body is closed; the guide track line extends from the door front wall to the picking and placing opening along an arc when the door body is closed, and the circle center of the guide track line is positioned at one side of the guide track line far away from the first body side wall;

3. The refrigerator of claim 2, wherein a central axis of the first door shaft is located at an end of the guide track line away from the pick-and-place port when the door body is closed; the center axis of the second door spindle is located at one end of the guide track line, which is close to the first body side wall.

4. The refrigerator of claim 3, wherein the second door shaft is positioned at a side of the first door shaft adjacent to the first body sidewall and the access opening when the door body is closed;

5. The refrigerator according to claim 2, wherein the guide track line has a start guide point P ₀ Located at the start guide point P ₀ A fourth guide point P near one side of the pick-and-place opening ₄ The method comprises the steps of carrying out a first treatment on the surface of the Wherein, straight line P ₀ P ₄ Parallel to the first body sidewall;

6. The refrigerator according to claim 1, wherein,

the guide track line extends from the first body side wall to the second body side wall along an arc, and the circle center of the guide track line is positioned at one side of the guide track line far away from the picking and placing port;

7. According to any one of claims 2-6The refrigerator is characterized in that the circle center of the circle where the guide track line is positioned is recorded as a guide circle center O ₁ The circle center of the circle where the guide track line is positioned is recorded as a guide circle center O ₂ ；

8. The refrigerator of any one of claims 1-6 wherein the door has a second side edge adjacent the hinge and adjacent the access opening when the door is closed;

9. The refrigerator of claim 8, wherein the door body has a door front wall distant from the cabinet when the door body is closed, a door rear wall disposed opposite the door front wall, a door side wall adjacent to the hinge and connected to the door front wall;

In the process of opening the door body to the maximum angle, the side sealing edge moves in an arc manner, and the side sealing edge is firstly far away from the door bodyFirst reference plane M ₁ And is adjacent to the second reference plane M ₂ Is moved in a direction away from the first reference plane M ₁ And away from the second reference plane M ₂ Is moved in the direction of (a).

10. The refrigerator of claim 9, wherein the side seal edge movement trace is recorded as a side seal edge trace when the door body is opened; and the circle of the side seal edge track line and the circle of the guide track line are concentric circles.