CN117190605A

CN117190605A - Refrigerator with a refrigerator body

Info

Publication number: CN117190605A
Application number: CN202210600561.XA
Authority: CN
Inventors: 郭动; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-12-08

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge arranged on the refrigerator body; the hinge is provided with a linear positioning slot, a first hinge shaft and a second hinge shaft; the door body comprises a door front wall and a door side wall; the end part of the door body, which is close to the hinge, is provided with an integrally formed and detachable mounting block and a door shaft; the mounting block is provided with an annular guide groove and a shaft sleeve which is surrounded by the guide groove and matched with the positioning groove; the bottom of the door shaft is provided with a fixed block clamped between the door body and the mounting block, and the door shaft is sleeved in the door shaft sleeve; the door body is opened to a third angle G from the closed state ₃ In the process of (a), the first hinge shaft and the second hinge shaft move relative to the guide slot, and at least one of the first hinge shaft and the second hinge shaft is in contact fit with the guide slot; the door shaft moves relative to the positioning groove, so that the door body can move a distance to a direction close to the side wall of the second body while rotating; the refrigerator provided by the invention can prevent the door body from exceeding or exceeding the side surface of the refrigerator body excessively when being opened, so that the door body is prevented from interfering with a cabinet 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 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 the corners of the door bodies of the hinge structures can exceed the side surfaces of the refrigerator bodies in the door opening process.

For embedded refrigerators, the refrigerator is generally placed in a cabinet, and the corners of the door body are required not to exceed the size of the cabinet too much in the process of opening the door to 90 degrees, so that the use of the refrigerator is limited.

Disclosure of Invention

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

To this end, the present application is directed to a refrigerator having a hinge structure such that a door body does not protrude or protrude excessively beyond a side of a cabinet when opened.

The refrigerator according to the present application includes:

a case defining a storage compartment having a access opening and having a first body side wall and a second body side wall disposed opposite to each other;

the hinge is arranged on the box body and is close to the first body side wall; the hinge is provided with a linear positioning slot, a first hinge shaft and a second hinge shaft;

a door body having a door front wall distant from the case when the door body is closed, a door side wall adjacent to the hinge and connected to the door front wall; the end of the door body close to the hinge is provided with:

a mounting block detachably connected with the door body; the mounting block is provided with an annular guide groove and a shaft sleeve which is surrounded by the guide groove and matched with the positioning groove;

The bottom of the door shaft is provided with a fixed block clamped between the door body and the mounting block, and the door shaft is mounted in the shaft sleeve;

the door body is opened to a third angle G from a closed state ₃ In the process of (a), the first hinge shaft and the second hinge shaft move relative to the guide slot, and at least one of the first hinge shaft and the second hinge shaft is in contact fit with the guide slot; the door shaft moves relative to the positioning groove, so that the door body can move inwards by a certain distance while rotating.

As one embodiment of the present application, the guide groove includes a groove bottom, a circumferential groove wall surrounding the groove bottom; a plate body is arranged around the circumferential groove wall of the guide groove;

an installation groove is formed at the end part of the door body, which is close to the hinge, and a containing cavity is formed on the bottom wall of the installation groove; the plate body is matched with the bottom wall of the mounting groove, and the guide groove is at least partially accommodated in the accommodating cavity.

As one embodiment of the present application, a recess is formed in the bottom wall of the accommodating chamber, and the recess is matched with the fixing block, and the inner side wall of the recess is matched with the outer peripheral wall of the fixing block.

As one embodiment of the present application, a center line of the positioning groove along an extending direction thereof is parallel to a plane in which the pick-and-place port is located.

As one embodiment of the present application, the first hinge shaft is located at a side of the positioning slot near the first body sidewall; the second hinge shaft is positioned at one side of the positioning groove away from the side wall of the first body; the first hinge shaft is provided with a first convex rib P matched with the groove wall of the guide groove ₁ The second hinge shaft is provided with a second convex rib Q matched with the groove wall of the guide groove ₁ 。

As one embodiment of the present application, the inner wall of the guide groove defines a guide track line K, and the centroid of the guide track line K is denoted as a guide centroid O;

the guide track line K comprises a first guide section K which is connected end to end in sequence and protrudes towards one side far away from the guide centroid O ₁ Second guide section K ₂ Third guide section K ₃ Fourth guide section K ₄ Fifth guide section K ₅ ；

Wherein the fifth guiding section K ₅ And the first guiding section K ₁ Is marked as a first inflection point A, the first guide section K ₁ Second guide section K ₂ Third guide section K ₃ Fourth guide section K ₄ Fifth guide section K ₅ The connection points which are sequentially connected are sequentially marked as a second inflection point B, a third inflection point C, a fourth inflection point D and a fifth inflection point E;

the second inflection point B, the first inflection point A, the third inflection point C, the fifth inflection point E and the fourth inflection point D are sequentially far away from the side wall of the door;

The fifth inflection point E, the first inflection point A, the fourth inflection point D, the second inflection point B and the third inflection point C are sequentially close to the door front wall.

As one embodiment of the present application, when the door body is closed,the first convex edge P ₁ The second convex edge Q is matched with the first inflection point A ₁ And the fourth guiding section K ₄ Matched with each other.

As one embodiment of the application, the door body has a centroid plane F passing through the centroid of the door body and parallel to the door front wall; the axis passing through the cross-sectional centroid of the first hinge axis is denoted as the first centroid axis P ₀ The axis passing through the cross-sectional centroid of the second hinge axis is denoted as the second centroid axis Q ₀ ；

In the projection of the top wall of the box body, a line segment Q ₀ P ₀ The midpoint of (2) is marked as a guiding midpoint H; the distance between the guide midpoint H and the centroid plane F is recorded as an offset distance R;

the door body is formed by a third angle G ₃ Open to a fourth angle G ₄ In the course of (2), the offset distance R tends to decrease.

As one embodiment of the present application, the door front wall intersects the door side wall to form a first side edge W; the plane of the pick-and-place opening is marked as a second reference plane M ₂ The method comprises the steps of carrying out a first treatment on the surface of the When the door body is closed, one side of the first side edge W, which is far away from the picking and placing opening, 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, the first side edge W is positioned on the first reference plane M ₁ One side adjacent to the first body sidewall;

the door body is opened to a second angle G ₂ When the first side edge W is in contact with the first reference plane M ₁ The distance between the two is the smallest;

the door body is from a second angle G ₂ Open to a fourth angle G relative to the box ₄ In the process of (1), each time the door body is opened, the first side edge W and the second reference plane M ₂ The distance change of (a) is denoted as xi ₁ ；

The door body is from a fourth angle G ₄ Relative to each otherThe box body is opened to a maximum angle G _max In the process of (1), each time the door body is opened, the first side edge W and the second reference plane M ₂ The distance change of (a) is denoted as xi ₂ ；G _max ＞G ₄ ＞G ₂ ，ξ ₁ 、ξ ₂ All are positive numbers; wherein, xi ₁ ＞ξ ₂ 。

As one embodiment of the application, the door body is opened from a closed state to a second angle G ₂ In the process of (2), the inward movement distance of the door body per unit angle of opening is recorded as delta ₁ ；

The door body is formed by a second angle G ₂ Open to a third angle G ₃ In the process of (2), the inward movement distance of the door body per unit angle of opening is recorded as delta ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein G is ₃ ＞G ₂ ＞0°，δ ₁ ＞δ ₂ 。

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

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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 schematic structural view of a hinge of the refrigerator of the present invention;

fig. 5 is a schematic view showing an exploded structure of a hinge and a door body in an upper right corner of the refrigerator of the present invention;

fig. 6 is an exploded view of the hinge and door body at the upper right corner of the refrigerator according to the present invention at another view angle;

fig. 7 is a schematic view showing a structure of a hinge when a door body of the refrigerator of the present invention is opened in a closed state;

fig. 8 is a view showing a door body of the refrigerator of the present invention opened toA structural schematic diagram at the hinge;

fig. 9 is a view showing a door body of the refrigerator of the present invention opened toA structural schematic diagram at the hinge;

fig. 10 is a view showing a door body of the refrigerator of the present invention opened toA structural schematic diagram at the hinge;

fig. 11 is a view showing a door body of the refrigerator of the present invention opened toA structural schematic diagram at the hinge;

fig. 12 is a view showing a door body of the refrigerator of the present invention opened toA structural schematic diagram at the hinge;

FIG. 13 shows a door body of the refrigerator according to the present invention opened from a closed state to a closed stateWhen the motion trail of the first side edge and the second side edge is shown in the schematic diagram;

FIG. 14 shows the refrigerator door of the present invention openedThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 15 shows a door body of a refrigerator according to the present invention opened to a positionThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 16 shows a door body of the refrigerator according to the present invention opened to a positionThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 17 shows a door body of a refrigerator according to the present invention opened to a state of being openedThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 18 shows the refrigerator door of the present invention openedThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

fig. 19 is a door of a refrigerator according to the present inventionThe body is opened from the closed state toThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 20 shows a door body of a refrigerator according to the present inventionOpen to->The movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

FIG. 21 shows a door body of the refrigerator according to the present invention opened from a closed state to a closed stateThe movement condition of the guide slot relative to the first hinge shaft, the second hinge shaft and the door shaft relative to the positioning slot is schematically shown;

Fig. 22 is a schematic view showing a door end cover and a mounting block of the upper end of the door body of the refrigerator according to the present invention, which are exploded;

fig. 23 is a schematic view showing a door end cover and a mounting block of a lower end of a door body of a refrigerator according to the present invention;

fig. 24 is a schematic view showing the structure of the door end cover at the lower end of the door body and the mounting block assembly of the refrigerator of the present invention;

FIG. 25 is a schematic view showing the relative positions of the hinge plate and the locking structure when the door body of the refrigerator of the present invention is closed;

fig. 26 is a view showing a door body of the refrigerator of the present invention opened to G ₁ Schematic representation of the relative position of the hinge plate when separated from the locking structure;

FIG. 27 is a schematic view showing the relative positions of the hinge plate and the locking structure when the door body of the refrigerator of the present invention is opened to 90;

fig. 28 is a schematic view showing a door end cover and a mounting block of an upper end of a door body in an exploded structure in another embodiment of the refrigerator of the present invention;

fig. 29 is a schematic view showing a door end cover and a mounting block of a lower end of a door body in an exploded structure of another embodiment of the refrigerator of the present invention;

fig. 30 is a schematic view showing the assembly of the door end cap and the mounting block at the lower end of the door body of fig. 29.

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 hinge plate 40; a connection portion 401; an extension 402; a stopper 403; a hooking gap 404; a mounting groove 34; a housing chamber 35; a first projection 36; a clearance groove 37; a door end cap 38; pit 39; a mounting block 80; a plate 81; a latch hook 82; root joint 83; a hooking portion 84; a limit part 85; an insertion portion 86; a limit bar 87; reference plane M ₀ The method comprises the steps of carrying out a first treatment on the surface of the First reference plane M ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second reference plane M ₂ The method comprises the steps of carrying out a first treatment on the surface of the A positioning groove 5; a first hinge shaft 41; a second hinge shaft 42; first rib P ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second rib Q ₁ The method comprises the steps of carrying out a first treatment on the surface of the First centroid P ₀ The method comprises the steps of carrying out a first treatment on the surface of the Second shaped spindle Q ₀ The method comprises the steps of carrying out a first treatment on the surface of the A guide groove 6; a door spindle 7; positioning a central shaft I; a fixed block 70; a groove bottom 60; a circumferential groove wall 61; a notch 63; a through hole 64; a sleeve 65; positioning a track line S; initial positioning point I ₀ The method comprises the steps of carrying out a first treatment on the surface of the First positioning point I ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second positioning point I ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third positioning site I ₃ The method comprises the steps of carrying out a first treatment on the surface of the A guide track line K; first guide section K ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second guide section K ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third guide section K ₃ The method comprises the steps of carrying out a first treatment on the surface of the Fourth guide section K ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fifth guide section K ₅ The method comprises the steps of carrying out a first treatment on the surface of the A first inflection point A; a second inflection point B; a third inflection point C; a fourth inflection point D; and a fifth inflection point E.

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 application, 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 application 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.

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 and placing 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 has a hinge at an upper portion and a hinge at a lower portion rotatably connected to the case 10.

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 of the door 30 is the door sidewall 32.

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 planar surfaces is the theoretical first side edge W; in a specific machining configuration, a curved surface is formed based on the rounded transition at the intersection of the door front wall 31 and the door side wall 32, and any vertical line extending along the length direction of the door body 30 on the curved surface may represent the first side edge W. Similarly, the rounded corners of the front door wall 31 and the side door wall 32 may be used to represent the movement of the first side edge W by the intersection line of the planes of the front door wall 31 and the side door wall 32 or the vertical line which is close to and parallel to the planes. In addition, in the present embodiment, 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.

Referring to fig. 2 to 6, the hinge has a first hinge shaft 41, a second hinge shaft 42 located at a side of the first hinge shaft 41 remote from a side wall of the first body, and a positioning slot 5 located between the first hinge shaft 41 and the second hinge shaft 42.

The end of the door body 30, which is close to the hinge, is provided with a guide groove 6, and a door shaft 7 is arranged on the bottom 60 of the guide groove 6; the first hinge shaft 41 and the second hinge shaft 42 are both adapted to the guide slot 6, and the door shaft 7 is adapted to the positioning slot 5. During the opening or closing of the door body 30, the door shaft 7 moves relative to the positioning slot 5, and the guide slot 6 moves relative to the first hinge shaft 41 and the second hinge shaft 42 (it should be noted that, the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42 are all fixed to the hinge shafts, i.e., the movement of the guide slot 6 relative to the first hinge shaft 41 can also be expressed in the movement of the guide slot 6 relative to the positioning slot 5). As an alternative, at least one of the first hinge shaft 41 and the second hinge shaft 42 contacts the slot wall of the guide slot 6 and moves with respect to the guide slot 6 during the opening of the door body 30.

As an arrangement, when the door 30 is closed, in the projection of the top wall of the case 10, the first hinge shaft 41, the second hinge shaft 42 and the positioning slot 5 are all located in the bottom area of the guide slot 6, the first hinge shaft 41 is located at a side of the positioning slot 5 close to the first body sidewall, and the second hinge shaft 42 is located at a side of the positioning slot 5 far from the first body sidewall. As an embodiment, when the door body 30 is closed, the positioning groove 5 is close to the door rear wall 33 (access opening) with respect to the door front wall 31. The above arrangement makes the positioning groove guide the door angle position of the door body 30 near the door rear wall 33 and the door side wall 32 to effectively balance the external force applied to the door angle of the end of the door front wall 31 far from the door side wall 32 for driving the door body 30 to open, thereby reducing the shaking of the door body 30 and increasing the stability of the door body 30 to open.

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 a plate-like extension portion 402 extending forward from the connection portion 401 and having a horizontal plane. 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, a hinge plate 40 connected to the upper end of the case 10 is included, and a first hinge shaft 41 and a second hinge shaft 42 are connected to the hinge plate 40 to form a limiting shaft for guiding the movement of the door 30. The hinge plate 40, the first hinge shaft 41 and the second hinge shaft 42 may be integrally formed, or may be separately provided and assembled with each other. Among them, the first hinge shaft 41 and the second hinge shaft 42 are formed on the extension 402 and extend toward one side thereof adjacent to the door body 30. The two upper first hinge shafts 41 on the hinges at the upper and lower ends of the door body 30 correspond to each other in the vertical direction, and the two second hinge shafts 42 correspond to each other in the vertical direction.

The upper and lower ends of the door body 30 are provided with guide grooves 6 and door shafts 7 corresponding to the positions of the hinge plates 40. And the two guide grooves 6 at the upper and lower ends of the door body 30 correspond to each other in the vertical direction, and the two door shafts 7 correspond to each other in the vertical direction, so that the movement of the upper and lower ends of the door body 30 is kept consistent, and the door body 30 is opened or closed more smoothly.

In the present embodiment, with continued reference to fig. 2, the plane of the side surface (first body side wall) of the case 10 adjacent to the hinge plate 40 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 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 ) The distance α of (2) may be set to 3mm to 5mm. 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.

As shown in fig. 3, in the present embodiment, the positioning groove 5 is provided as a linear groove. As an embodiment, the positioning groove 5 is parallel to the plane of the pick-and-place opening. As another embodiment, the linear groove is inclined in a direction away from the access opening in a direction from the first body side wall to the second body side wall; i.e. in the direction from the first body side wall to the second body side wall, the distance between the linear groove and the pick-and-place opening is gradually increased, so that the door body 30 moves forward in the opening process, and interference between the door body 30 and the box body 10 is avoided. In this embodiment, for convenience of description, the positioning groove 5 is described as being parallel to the plane of the pick-and-place port. The center trajectory of the positioning groove 5 is denoted as a positioning trajectory S, and the positioning trajectory S is defined by the shape of the positioning groove 5 and is a straight line.

First oneThe side of the hinge shaft 41 away from the second hinge shaft 42 is provided with a first convex edge P ₁ The method comprises the steps of carrying out a first treatment on the surface of the The side of the second hinge shaft 42 away from the first hinge shaft 41 is provided with a second convex rib Q ₁ The method comprises the steps of carrying out a first treatment on the surface of the Wherein the first hinge shaft 41 and the second hinge shaft 42 are separated at opposite sides of the positioning slot 5. I.e., the first hinge shaft 41 and the second hinge shaft 42 are separated at adjacent positions at opposite ends of the positioning slot. In this embodiment, the first hinge shaft 41 is located at a side of the positioning slot 5 near the side wall of the first body; the second hinge shaft 42 is located at a side of the positioning slot 5 remote from the side wall of the first body. First rib P ₁ And a second rib Q ₁ Is adapted to the guide groove 6 provided on the door body 30. During the opening or closing of the door 30, the first rib P ₁ And a second rib Q ₁ Moves relative to the guide groove 6. Specifically, during the opening of the door 30, the first rib P ₁ And a second rib Q ₁ At least one of which cooperates with the wall of the guide slot 6. The first rib P according to the present embodiment ₁ And a second rib Q ₁ The fit between each groove wall of the guide groove 6 and each groove wall is clearance fit. As an embodiment, the clearance fit has a clearance range of 0 to 2mm. As an embodiment, the first rib P is formed during the opening of the door 30 ₁ And a second rib Q ₁ Wherein at least one clearance which is in clearance fit with the groove wall of the guide groove 6 is 0; namely, the first rib P ₁ And a second rib Q ₁ At least one of which is in contact engagement with the guide track line K. As another alternative, during the opening process of the door body 30, one of the first hinge shaft 41 and the second hinge shaft 42 is in clearance fit with the slot wall of the guide slot 6 by a clearance greater than 0; that is, a gap exists between one of the first hinge shaft 41 and the second hinge shaft 42 and the guide track line K, and the other is in contact fit with the guide track line K; the above setting can ensure on the one hand that the guide door body is opened, ensures the stability that the door body was opened, and on the other hand can effectively avoid the door body 30 to open the in-process and appear blocking. In some embodiments of the present application, the cross sections of the first hinge shaft 41 and the second hinge shaft 42 are both diamond-shaped, that is, the first hinge shaft 41 and the second hinge shaft 42 are both quadrangular prisms with diamond-shaped bottom surfaces; the first hinge shaft 41 and the second hinge shaft 42 of the quadrangular prism shape are close to the guide groove6 are corresponding ribs.

Wherein, in the projection of the top wall of the box body 10, the first convex rib P ₁ And a second convex rib Q ₁ The straight line is marked as a first straight line Q ₁ P ₁ First straight line Q ₁ P ₁ The distance from the positioning track line S is any value of 0-2 mm. As an arrangement, the first rib P ₁ Second rib Q ₁ On the positioning track line S. The above arrangement defines a first rib P ₁ Second rib Q ₁ The position of the central shaft of the door shaft 7 is located and the first convex edge P is opposite to the position of the positioning groove 5 when the door body 30 is opened ₁ Second rib Q ₁ The positions are approximately on the same straight line (including the same straight line), so that the stress balance of all parts in the opening process of the door body 30 is increased, and the smoothness and stability of the opening of the door body 30 are effectively ensured. As another embodiment, the first straight line Q ₁ P ₁ Parallel to the plane of the pick-and-place opening. And when the door 30 is closed, the first straight line Q ₁ P ₁ On the side of the centroid plane F adjacent the door back wall 33. When the door body 30 is opened, an external force is applied to the door corner of the end of the door front wall 31 far from the door side wall 32, and the arrangement of the embodiment enables the first hinge shaft 41 and the second hinge shaft 42 to mainly guide the door corner position of the door body 30 close to the door rear wall 33 and the door side wall 32 near the first hinge shaft 41 and the second hinge shaft 42, so as to effectively balance the external force for driving the door body 30 to open, thereby reducing the shaking of the door body 30 and increasing the opening stability of the door body 30.

Wherein an axis passing through a cross-sectional centroid of the first hinge shaft 41 is denoted as a first centroid axis P ₀ The axis passing through the cross-sectional centroid of the second hinge axis 42 is denoted as the second centroid axis Q ₀ . Wherein the first centroid P ₀ Located in the first rib P ₁ A second spindle Q near one side of the centroid of the guide groove 6 ₀ Located in the second rib Q ₁ Near one side of the centroid of the guide slot 6. In the present embodiment, the first mandrel P ₀ Located in the first rib P ₁ A second spindle Q near one side of the positioning groove 5 ₀ Located in the second rib Q ₁ Near one side of the positioning slot 5. I.e. the first hingeThe main body of the shaft 41 is located in the first rib P ₁ One side close to the centroid of the guide groove 6; the main body of the second hinge shaft 42 is also located on the second rib Q ₁ A position close to the centroid of the guide groove 6; so as to avoid interference of the hinge shaft body with the guide slot 6 and influence of movement thereof relative to the guide slot 6.

Referring to fig. 3, in projection of the top wall of the case 10, a first centroid P ₀ With the first convex edge P ₁ The line segment is marked as a first line segment P ₀ P ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second shaped spindle Q ₀ And a second convex rib Q ₁ The line segment is marked as a second line segment Q ₀ Q ₁ . Wherein the first line segment P ₀ P ₁ With a first straight line Q ₁ P ₁ The included angle is recorded as a first included angle gamma ₁ ，γ ₁ ∈[30°，35°]Any of which. Second line segment Q ₀ Q ₁ With a first straight line Q ₁ P ₁ The included angle is recorded as a second included angle gamma ₂ ，γ ₂ ∈[30°，35°]Any of which. In this embodiment, gamma ₁ ＝γ ₂ . As an implementation, the line segment Q ₁ P ₁ Is concentric with the positioning track line S, i.e. the first rib P ₁ And a second rib Q ₁ Are symmetrically distributed on two opposite sides of the perpendicular bisector of the positioning track line S. The above effectively defines the first rib P ₁ At a position on the first hinge shaft 41 and a second rib Q ₁ The position on the second hinge axis 42 ensures, on the one hand, the strength of the first hinge axis 41 and the second hinge axis 42 and, on the other hand, prevents the hinge axis from interfering with the guide slot 6 with a large cross section, which would affect its movement relative to the guide slot 6.

In the present embodiment, the groove wall of the guide groove 6 is annular; when the door body 30 is closed, the slot wall of the guide slot 6 surrounds the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42; i.e. the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42 are located inside the annular guide slot 6. In the embodiment, the inner wall of the guide groove 6 defines a guide track line K, and the centroid of the guide track line K is marked as a guide centroid O; in this embodiment, the guide track line K surrounds its guide centroid O.

In some embodiments of the application, the guide track line K packetFirst guide section K connected end to end in turn ₁ Second guide section K ₂ Third guide section K ₃ Fourth guide section K ₄ Fifth guide section K ₅ The method comprises the steps of carrying out a first treatment on the surface of the I.e. the guide track line K is in the form of a closed loop and the guide slot 6 is in the form of a closed loop to effectively define the movement of the first hinge shaft 41 and the second hinge shaft 42 while preventing the first hinge shaft 41 and the second hinge shaft 42 from being disengaged from the guide slot 6. Wherein the fifth guide section K ₅ And the first guiding section K ₁ The connection point of the first guide section K is marked as a first inflection point A ₁ And a second guiding section K ₂ Is marked as a second inflection point B, a second guide section K ₂ And a third guide section K ₃ The connection point of the guide rail is marked as a third inflection point C, a third guide section K ₃ And a fourth guide section K ₄ The connection point of the guide rail is marked as a fourth inflection point D, a fourth guide section K ₄ And a fifth guide section K ₅ The junction point of (a) is denoted as a fifth inflection point E.

First rib P on first hinge shaft 41 when door 30 is closed ₁ Cooperating with the first inflection point a of the guide channel 6. I.e. the first rib P when the door 30 is closed ₁ At a first inflection point a.

Wherein the second inflection point B is located at one side of the first inflection point a near the door side wall 32 and the door front wall 31;

the third inflection point C is located at a side of the second inflection point B near the door front wall 31 and far from the door side wall 32; in the present embodiment, the third inflection point C is located at a side of the first inflection point a away from the door sidewall 32;

the fourth inflection point D is located at a side of the third inflection point C near the door rear wall 33 and away from the door side wall 32, and the fourth inflection point D is located at a side of the second inflection point B near the door rear wall 33; in the present embodiment, the fourth inflection point D is located at a side of the first inflection point a near the door front wall 31;

the fifth inflection point E is located at one side of the fourth inflection point D near the door rear wall 33 and the door side wall 32; in the present embodiment, the fifth inflection point E is located on a side of the first inflection point a close to the door rear wall 33 and away from the door side wall 32;

That is, in the projection of the plane in which the door front wall 31 is located, the second inflection point B, the first inflection point a, the third inflection point C, the fifth inflection point E, and the fourth inflection point D are sequentially distant from the door side wall 32. In the present embodiment, the third inflection point C and the fifth inflection point E are located adjacent to each other in the projection of the plane in which the door front wall 31 is located. It may be provided that, in projection of the plane in which the door front wall 31 lies, the distance between the third inflection point C and the fifth inflection point E is less than 1mm.

In the projection of the plane in which the door side wall 32 is located, the fifth inflection point E, the first inflection point a, the fourth inflection point D, the second inflection point B, and the third inflection point C are sequentially distant from the door rear wall 33 (close to the door front wall 31). In the present embodiment, in the projection of the plane in which the door front wall 31 is located, the fourth inflection point D is closer to the first inflection point a than the second inflection point B. As an alternative, the first inflection point a is located adjacent to the fourth inflection point D in the projection of the plane in which the door sidewall 32 is located. It may be provided that, in projection of the plane in which the door sidewall 32 lies, the distance between the first inflection point a and the fourth inflection point D is less than 5mm.

The guide groove surrounds the guide centroid O and the first guide section K ₁ Second guide section K ₂ Third guide section K ₃ Fourth guide section K ₄ Fifth guide section K ₅ Are convex in a direction away from the guide centroid O of the bottom wall of the guide groove 6.

A first guide section K in the direction from the door rear wall 33 to the door front wall 31 ₁ The distance from the door side wall 32 gradually decreases, the second guide section K ₂ The distance from the door side wall 32 increases gradually, the third guide section K ₃ The distance from the door side wall 32 gradually decreases, the fourth guide section K ₄ The distance from the door side wall 32 increases gradually, the fifth guide section K ₅ The distance from the door sidewall 32 gradually decreases. As a further embodiment, the fifth guide section K ₅ The distance from the door side wall 32 decreases gradually and then increases gradually, and then the distance from the first guide section K ₁ At the first inflection point a.

That is, in the present embodiment, the second inflection point B is the point of the guide groove 6 closest to the door side wall 32, and the fourth inflection point D is the point of the guide groove farthest from the door side wall 32; the third inflection point C is the point of the guide groove 6 closest to the door front wall 31, and the fifth inflection point E is the point of the guide groove closest to the door rear wall 33.

As an embodiment, when the door 30 is closed, the first hinge shaft41 first rib P ₁ Is matched with a first inflection point A of the guide groove 6; second rib Q of second hinge shaft 42 ₁ And a fourth guide section K ₄ Corresponds to the position of (a); in this embodiment, when the door 30 is closed, the second rib Q ₁ And a fourth guide section K ₄ Phase separation; namely, the second rib Q ₁ And a fourth guide section K ₄ There is a gap between them.

In the present embodiment, the central axis of the door spindle 7 is denoted as a positioning central axis I, and the central track line (positioning track line S) of the positioning groove 5 includes a start positioning point I ₀ Third positioning site I ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein the third positioning site I ₃ Located at the initial locating point I ₀ One side remote from the first body sidewall; the positioning track line S is formed by a starting positioning point I ₀ Extending along a straight line to a third locating point I ₃ The method comprises the steps of carrying out a first treatment on the surface of the During the opening of the door body 30, the positioning center axis I moves relative to the positioning trajectory S.

In the projection of the top wall of the case 10, a line segment having the guide centroid O of the guide trajectory line K as an end point, which locates the central axis I, is referred to as an axis line segment IO. In the present embodiment, the guide slot 6 and the door shaft 7 are provided on the door body 30, and the positioning slot 5, the first hinge shaft 41, and the second hinge shaft 42 are fixed to the case 10 by hinges. The door 30 operates with respect to the cabinet 10, equivalently to relative movement in a plane parallel to the top wall of the cabinet 10. In a plane parallel to the top wall of the case 10, the door 30 moves relative to the case 10, and the movement of the axis line segment IO relative to the positioning groove 5 is equivalent to the movement of the guide groove 6 relative to the hinge, and is also equivalent to the movement of the door 30 relative to the case 10. In this embodiment, for convenience of description, the axis line segment IO is used to represent the motion of the door body 30, and the positioning center axis I represents the motion of the door spindle 7.

When the door body 30 is opened, the positioning slot 5 and the door shaft 7, and the first hinge shaft 41 or the second hinge shaft 42 and the guide slot 6 are in relative movement relation; in this embodiment, for convenience of description, the hinge (the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42) is used as a stationary reference, the guide slot 6 moves relative to the first hinge shaft 41 and the second hinge shaft 42, and the door shaft 7 moves relative to the positioning slot 5, so as to describe a specific process of opening the door body 30.

As shown in fig. 7-21, the movement of the door spindle 7 along the positioning slot 5 is equivalent to the movement of the positioning center axis I along the positioning trajectory S; the movement of the guide slot 6 relative to the first hinge axis 41 and the second hinge axis 42 is equivalent to the movement of the guide track line K relative to the first rib P ₁ And a second rib Q ₁ And (5) movement.

In the present embodiment, the maximum angle G at which the refrigerator is opened _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 position of the door shaft 7 to the positioning slot 5 and the first rib P of the guide slot 6 to the first hinge shaft 41 ₁ Second rib Q of second hinge shaft 42 ₁ The relative positions of (a) are as follows:

wherein,indicating the opening angle of the door body 30, the opening angle of the door body 30 in the closed state >

As shown in figure 7 of the drawings,when the door body 30 is in a closed state; the positioning central axis I is positioned at the initial positioning point I of the positioning track line S ₀ Where it is located. That is, when the door body 30 is closed, the door shaft 7 is positioned at one end of the positioning groove 5 near the door sidewall 32. First rib P ₁ A second convex rib Q matched with the first inflection point A of the guiding track line K ₁ And a fourth guide section K ₄ Matched with each other. At this time (/ -)>When the position of the guiding centroid O is marked as O ₀ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₀ 、B ₀ 、C ₀ 、D ₀ 、E ₀ 。

As a kind ofIn an embodiment, when the door 30 is closed, the second rib Q ₁ And a fourth guide section K ₄ With a clearance between them, i.e. the second rib Q ₁ And a fourth guide section K ₄ Not in contact; while the first convex edge P ₁ Is in contact with the first inflection point a of the guide track line K. In addition, when the door body 30 is in the closed state, the centroid plane F of the door body 30 is located on one side of the positioning slot 5, the first hinge shaft 41, and the second hinge shaft 42 near the door front wall 31. That is, when the door body 30 is closed, the centroid plane F is not between the first hinge axis 41 and the second hinge axis 42.

As shown in figure 8 of the drawings,when the door 30 is rotated from the closed state to G ₂ Is a process of (1); during the above opening process, the positioning center axis I moves inward (toward the direction approaching the second body side wall) along the positioning trajectory line S; first guide section K ₁ With the first convex edge P ₁ Is matched with the first guide section K ₁ Opposite to the first convex rib P ₁ Rotate counterclockwise and move inward (in a direction approaching the second body sidewall); fourth guide section K ₄ And a second convex rib Q ₁ Is matched with a fourth guide section K ₄ Opposite to the second convex rib Q ₁ Rotates counterclockwise and moves inward (in a direction toward the second body side wall). In addition, the door 30 is rotated from the closed state to be opened to G ₂ The centroid plane F of the door body 30 is located on the side of the positioning slot 5, the first hinge shaft 41, and the second hinge shaft 42 away from the access opening. That is, the door body 30 is rotated from the closed state to G ₂ The centroid plane F is not between the first hinge axis 41 and the second hinge axis 42.

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 angles are different, the first convex rib P ₁ A first guide section K relative to the guide track line K ₁ Is different in position, the second rib Q ₁ Fourth guide relative to guide track line KSegment K ₄ The position of the door spindle 7 relative to the positioning slot 5 is different. Thus, the opening angle +.>In the inner case, selecting one of the opening angles may represent the first rib P when the door 30 is opened to the corresponding section ₁ Second rib Q ₁ The relative position of each of the guide grooves 6 and the door shaft 7 and the positioning groove 5. Specifically, as shown in FIGS. 8 and 14, 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 fig. 8 and 14, the door 30 opens G ₁ When the positioning center axis I is positioned at the first positioning point I of the positioning track line S ₁ The method comprises the steps of carrying out a first treatment on the surface of the Wherein the first positioning point I ₁ Located at the initial locating point I ₀ A side remote from the door sidewall 32; first guide section K of guide track line K ₁ With the first convex edge P ₁ Matched with a fourth guide section K ₄ And a second convex rib Q ₁ Matched with each other. At this time%When the position of the guiding centroid O relative to the hinge is recorded as O ₁ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₁ 、B ₁ 、C ₁ 、D ₁ 、E ₁ . As a settable way, +.>Any of which.

As shown in figures 9 and 15 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 The positioning central axis I is positioned at a second positioning point I of the positioning track line S ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein the second positioning point I ₂ Located at a first positioning point I ₁ Away from the side of the door sidewall 32. First rib P ₁ A second convex rib Q matched with a second inflection point B of the guiding track line K ₁ And a fourth guide section K ₄ Matched with each other. At this time (/ -)>When the position of the guiding centroid O relative to the hinge is recorded as O ₂ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₂ 、B ₂ 、C ₂ 、D ₂ 、E ₂ 。

As an embodiment, the door 30 is opened to G ₂ When the second rib Q ₁ And a fourth guide section K ₄ With a clearance between them, i.e. the second rib Q ₁ And a fourth guide section K ₄ Not in contact; while the first convex edge P ₁ Is in contact with a second inflection point B of the guide track line K. That is, as one embodiment, the door 30 is opened from the closed state to G ₂ When the second rib Q ₁ A reserved gap exists between the second convex edge Q and the guiding track line K ₁ Is not in contact with the guide track line K; while the first convex edge P ₁ In contact with the guide track line K. I.e. can be set, when the door 30 is opened from the closed state to G ₂ When the first rib P ₁ Always in contact with the guide track line K, the second rib Q ₁ There is a gap with the guide track line K at least when opening some specific angles. The arrangement can effectively avoid the occurrence of clamping in the opening process of the door body 30. In addition, the door body 30 is opened to G ₂ When the door 30 has a center of mass plane F between the first hinge axis 41 and the second hinge axis 42. In the present embodiment, the door 30 is opened to G ₂ When the center of mass plane F is located near the first hinge axis 41 with respect to the second hinge axis 42. As a way of being able to be set up,any of which.

As shown in the figureAs shown in the drawing 10,when the door body 30 is formed by G ₂ Rotate and open to G ₃ Is a process of (1); during the above opening process, the positioning center axis I moves inward (toward the direction approaching the second body side wall) along the positioning trajectory line S; second guide section K ₂ With the first convex edge P ₁ Is matched with a second guiding section K ₂ Opposite to the first convex rib P ₁ Rotate counterclockwise and move inward (in a direction approaching the second body sidewall); fourth guide section K ₄ And a second convex rib Q ₁ Is matched with a fourth guide section K ₄ Opposite to the second convex rib Q ₁ Rotates counterclockwise and moves inward (in a direction toward the second body side wall). In addition, the door body 30 is formed by G ₂ Rotate and open to G ₃ The center of mass plane F of the door body 30 is located between the first hinge axis 41 and the second hinge axis 42. In the present embodiment, the door 30 is formed by G ₂ Rotate and open to G ₃ As the opening angle increases, the centroid plane F moves toward the side closer to the second hinge axis 42.

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 angles are different, the first convex rib P ₁ A second guide section K relative to the guide track line K ₂ Is different in position, the second rib Q ₁ Fourth guide section K of opposite guide track line K ₄ The position of the door spindle 7 relative to the positioning slot 5 is different. Thus, the opening angle +.>In the inner case, selecting one of the opening angles may represent the first rib P when the door 30 is opened to the corresponding section ₁ Second rib Q ₁ The relative position of each of the guide grooves 6 and the door shaft 7 and the positioning groove 5. Specifically, as shown in FIGS. 10 and 16, 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 fig. 10 and 16, the door body 30 is opened to G ₃ When the positioning center axis I is positioned at the third positioning point I of the positioning track line S ₃ The method comprises the steps of carrying out a first treatment on the surface of the Wherein the third positioning site I ₃ Located at a second locating point I ₂ One side remote from the door sidewall 32, and a third location point I ₃ To locate the trajectory S away from the end of the door sidewall 32. I.e. door open to G ₃ When the door spindle 7 is moved to the end of the positioning groove 5 remote from the door side wall 32, it cannot continue to move along the positioning groove 5 in the direction away from the door side wall 32. In addition, the door body 30 is opened to G ₃ The second guide section K of the guide track line K ₂ With the first convex edge P ₁ Matched with a fourth guide section K ₄ And a second convex rib Q ₁ Matched with each other. At this time%When the position of the guiding centroid O relative to the hinge is recorded as O ₃ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₃ 、B ₃ 、C ₃ 、D ₃ 、E ₃ 。

As a way of being able to be set up,any of which.

As shown in the figure 11 of the drawings,when the door body 30 is formed by G ₃ Rotate and open to G ₄ Is a process of (1); in the above opening process, the positioning center axis I is always located at the third positioning point I of the positioning track line S ₃ The method comprises the steps of carrying out a first treatment on the surface of the Second guide section K ₂ With the first convex edge P ₁ Is matched with a second guiding section K ₂ Opposite to the first convex rib P ₁ Rotating counterclockwise; fourth guide section K ₄ And second (b)Rib Q ₁ Is matched with a fourth guide section K ₄ Opposite to the second convex rib Q ₁ Rotated counterclockwise. Namely, the door body 30 is formed by G ₃ Rotate and open to G ₄ The guide groove 6 performs a simple rotational movement with the positioning center axis I as a rotational axis. In addition, the door body 30 is formed by G ₂ Rotate and open to G ₃ The center of mass plane F of the door body 30 is located between the first hinge axis 41 and the second hinge axis 42.

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 angles are different, the first convex rib P ₁ A second guide section K relative to the guide track line K ₂ Is different in position, the second rib Q ₁ Fourth guide section K of opposite guide track line K ₄ Is different in position. Thus, the opening angle +.>In the inner case, selecting one of the opening angles may represent the first rib P when the door 30 is opened to the corresponding section ₁ Second rib Q ₁ The relative position of each of the guide grooves 6 and the door shaft 7 and the positioning groove 5. Specifically, as shown in FIGS. 11 and 17, toRepresenting a position within the opening angle interval, for comparison with when the door body 30 is opened to other states.

As an embodiment, the door 30 is opened to G ₄ When the positioning center axis I is positioned at the third positioning point I of the positioning track line S ₃ . First rib P ₁ A second convex edge Q matched with the third inflection point C of the guiding track line K ₁ Cooperating with a fifth inflection point E of the guide track line K. At this time%When the position of the guiding centroid O relative to the hinge is recorded as O ₄ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₄ 、B ₄ 、C ₄ 、D ₄ 、E ₄ . In this embodiment, G ₄ =90°. Settable, G ₄ ∈[88°，92°]Any of which. That is, as one way of disposing, when the door body 30 is opened to the vicinity of 90 °, the first rib P ₁ A second convex edge Q matched with the third inflection point C of the guiding track line K ₁ Cooperating with a fifth inflection point E of the guide track line K.

As shown in figure 12 of the drawings,when the door body 30 is formed by G ₄ Rotate and open to G _max A process of > 90 °; in the above opening process, the positioning center axis I is always located at the third positioning point I of the positioning track line S ₃ The method comprises the steps of carrying out a first treatment on the surface of the Third guide section K ₃ With the first convex edge P ₁ Is matched with a third guide section K ₃ Opposite to the first convex rib P ₁ Rotating counterclockwise; fifth guide section K ₅ And a second convex rib Q ₁ Is matched with a fifth guide section K ₅ Opposite to the second convex rib Q ₁ Rotated counterclockwise. Namely, the door body 30 is formed by G ₄ Rotate and open to G _max In the process of more than 90 degrees, the guide groove 6 takes the positioning central shaft I as a rotation shaft to do simple rotation motion. As a settable way, the door body 30 is constituted by G ₄ Rotate and open to G _max In the process of more than 90 DEG, the third guide section K3 is in contact fit with the first convex edge P1, and the fifth guide section K ₅ And a second convex rib Q ₁ Contact mating. In addition, the door body 30 is formed by G ₄ Rotate and open to G _max During > 90 deg., the centroid plane F of the door 30 is located between the first hinge axis 41 and the second hinge axis 42.

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 angles are different, the first convex rib P ₁ Third guide section K relative to guide track line K ₃ Is different in position, the second rib Q ₁ A fifth guide section K opposite the guide track line K ₅ Is different in position. Thus, the opening angle +.>In the inner case, selecting one of the opening angles may represent the first rib P when the door 30 is opened to the corresponding section ₁ Second rib Q ₁ The relative position of each of the guide grooves 6 and the door shaft 7 and the positioning groove 5. In particular, as shown in FIGS. 12 and 18, toRepresenting a position within the opening angle interval, for comparison with when the door body 30 is opened to other states.

The door body 30 is opened to G _max When the positioning center axis I is positioned at the third positioning point I of the positioning track line S ₃ The method comprises the steps of carrying out a first treatment on the surface of the Third guide section K ₃ With the first convex edge P ₁ Matched with the fifth guide section K ₅ And a second convex rib Q ₁ Matched with each other. At this time%When the position of the guiding centroid O relative to the hinge is recorded as O ₅ The method comprises the steps of carrying out a first treatment on the surface of the The positions of the first inflection point A, the second inflection point B, the third inflection point C, the fourth inflection point D and the fifth inflection point E of the guide groove 6 relative to the hinge are sequentially marked as A ₅ 、B ₅ 、C ₅ 、D ₅ 、E ₅ 。

Above 0 DEG < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＝90°＜G _max ；G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max Sequentially marked as a first angle G ₁ Second angle G ₂ Third angle G ₃ Fourth angle G ₄ Maximum angle G _max 。

In summary, the door 30 is opened from the closed state to G ₃ In the course of (a), the positioning center axis I is directed far in a straight line with respect to the positioning trajectory S of the positioning groove 5 From a reference plane M ₀ The guide slot 6 is opened counterclockwise with respect to the first hinge shaft 41 and the second hinge shaft 42, so that the door body 30 can move inward (in a direction approaching to the side wall of the second body) 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, and effectively avoiding the mutual interference with the cabinet 100 when the door body 30 is opened.

Wherein the door body 30 is opened from the closed state to G ₂ In the course of (a), the first rib P ₁ And the first guiding section K ₁ Matched with the second convex rib Q ₁ And a fourth guide section K ₄ Matching;

the door body 30 is formed by G ₂ Open to G ₄ In the course of (a), the first rib P ₁ And a second guiding section K ₂ Matched with the second convex rib Q ₁ And a fourth guide section K ₄ Matching;

the door body 30 is formed by G ₄ Open to G _max In the course of (a), the first rib P ₁ And a third guide section K ₃ Matched with the second convex rib Q ₁ And a fifth guide section K ₅ Matched with each other.

In conclusion, the method comprises the steps of,opening the door body 30 from the closed state to G _max Divided into four phases. Hereinafter, the following description will be given of the relative movement of the four stages from the angle of the fitting relationship of the guide slot 6 to the first hinge shaft 41 and the second hinge shaft 42, and the door shaft 7 to the positioning slot 5, using the hinges (the positioning slot 5, the first hinge shaft 41, and the second hinge shaft 42) as stationary references:

In the first stage, as shown in FIG. 15, the door 30 is rotated from the closed state to G ₂ Is a process of (2).

In this first phase, the door 30 passes G from 0 DEG ₁ Open to G ₂ . In the process, the positioning center axis I moves along the positioning trajectory S of the positioning groove 5 in a direction away from the door side wall 32; the guide groove 6 rotates anticlockwise, the first guide section K of the guide groove 6 ₁ With the first convex edge P ₁ Matched with a fourth guide sectionK ₄ And a second convex rib Q ₁ Matched with each other. With the increase of the opening angle, the second inflection point B of the guide groove 6 and the first rib P ₁ Gradually get close to the fifth inflection point E and the second convex rib Q ₁ Gradually approaching. As an embodiment, the door 30 is opened to G ₂ When the second inflection point B is connected with the first convex rib P ₁ Matched, fourth guide section K ₄ And a second convex rib Q ₁ Matching.

In the above first stage of opening, the door body 30 is opened from 0 ° to G with the hinges (the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42) as references ₂ When the axis line segment is formed by I ₀ O ₀ Rotated counterclockwise and moved inward in turn to I ₁ O ₁ 、I ₂ O ₂ Department (I) ₀ O ₀ →I ₁ O ₁ →I ₂ O ₂ ). Since the guide groove 6 and the door shaft 7 are arranged on the door body 30, the positioning line segment IO represents the movement of the door body 30; the following is obtained: the door 30 is opened counterclockwise relative to the case 10 by taking the case 10 (hinge) as a reference, and moves inward by a certain distance, so that the outward displacement of the first side edge W caused by the simple rotation of the door 30 is compensated, and the door 30 is effectively prevented from interfering with the cabinet 100 when being opened.

In the second stage, as shown in FIG. 16, the door 30 is formed by G ₂ Rotate and open to G ₃ Is a process of (1).

During this second phase, the positioning central axis I moves along the positioning trajectory S of the positioning slot 5 in a direction away from the door side wall 32; the guide groove 6 rotates anticlockwise, and the second guide section K of the guide groove 6 ₂ With the first convex edge P ₁ Matched with a fourth guide section K ₄ And a second convex rib Q ₁ Matched with each other. With the increase of the opening angle, the third inflection point C of the guide groove 6 and the first rib P ₁ Gradually get close to the fifth inflection point E and the second convex rib Q ₁ Gradually approaching. As an embodiment, the door 30 is opened to G ₃ When the central axis of positioning I moves to a third positioning point I at which the positioning trajectory S is away from the end of the door sidewall 32 ₃ At the second guiding section K ₂ With the first convex edge P ₁ Matched, fourth guide section K ₄ And the firstTwo-bead Q ₁ Matching.

In the second stage of opening, the door body 30 is opened by G with the hinge (the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42) as a reference ₂ Open to G ₃ When the axis line segment is formed by I ₂ O ₂ Rotated counterclockwise to I ₃ O ₃ Department (I) ₂ O ₂ →I ₃ O ₃ ). Since the guide groove 6 and the door shaft 7 are arranged on the door body 30, the positioning line segment IO represents the movement of the door body 30; the following is obtained: the door 30 is opened counterclockwise relative to the case 10 by taking the case 10 (hinge) as a reference, and moves inward by a certain distance, so that the outward displacement of the first side edge W caused by the simple rotation of the door 30 is compensated, and the door 30 is effectively prevented from interfering with the cabinet 100 when being opened.

In the third stage, as shown in FIG. 17, the door 30 is formed by G ₃ Rotate and open to G ₄ Is a process of (1).

The door body 30 is formed by G ₃ Open to G ₄ In the course of (2), the positioning center axis I is always located at the third positioning point I of the positioning track line S ₃ The guide groove 6 rotates anticlockwise, the second guide section K of the guide groove 6 ₂ A fourth guiding section K matched with the first convex rib P1 ₄ And a second convex rib Q ₁ Matching; the third inflection point C of the guide groove 6 and the first rib P ₁ Gradually get close to the fifth inflection point E and the second convex rib Q ₁ Gradually approaching. As an embodiment, the door 30 is opened to G ₄ In the process, the third inflection point C and the first convex rib P ₁ The fifth inflection point E is matched with the second convex rib Q ₁ Matching.

In the opening process of the third stage, the door body 30 is formed by G with the hinge (the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42) as a reference ₃ Open to G ₂ When the axis line segment is formed by I ₃ O ₃ Rotated counterclockwise to I ₃ O ₄ Department (I) ₃ O ₃ →I ₃ O ₄ ). Since the guide groove 6 and the door shaft 7 are arranged on the door body 30, the positioning line segment IO represents the movement of the door body 30; the following is obtained: with the case 10 (hinge) as a reference, the door 30 is opened by simply rotating counterclockwise with respect to the case 10The door 30 is opened to a larger angle rapidly by moving, so that the door 30 is prevented from further moving inwards to shield the taking and placing opening, and the food taking and placing of a user is prevented from being influenced.

In the fourth stage, as shown in FIG. 18, the door 30 is formed by G ₄ Rotate and open to G _max Is a process of (1).

The door body 30 is formed by G ₄ Open to G _max The central axis of positioning I is always located at the third positioning point I of the positioning track line S ₃ The guide groove 6 rotates anticlockwise, and the third guide section K ₃ With the first convex edge P ₁ Matched with a fifth guide section K ₅ And a second convex rib Q ₁ Matching. With the increase of the opening angle, the fourth inflection point D of the guide groove 6 and the first rib P ₁ Gradually get close to the first inflection point A and the second convex rib Q ₁ Gradually approaching. The door body 30 is opened to G _max In the case of a third guide section K ₃ With the first convex edge P ₁ Matched with a fifth guide section K ₅ And a second convex rib Q ₁ Matching.

In the opening process of the fourth stage, the door body 30 is formed by G with the hinge (the positioning slot 5, the first hinge shaft 41 and the second hinge shaft 42) as a reference ₄ Open to G _max When (1), the axis line segment IO is formed by I ₃ O ₄ Rotated counterclockwise to I ₃ O ₅ Department (I) ₃ O ₄ →I ₃ O ₅ ). Since the guide groove 6 and the door shaft 7 are arranged on the door body 30, the positioning line segment IO represents the movement of the door body 30; the following is obtained: with the case 10 (hinge) as a reference, the door 30 performs only a simple counterclockwise rotation opening motion relative to the case 10, so as to rapidly open the door 30 to a larger angle, and also avoid the influence of the door 30 moving further inwards to block the taking and placing opening, thereby affecting the taking and placing of food by a user.

In combination with the above first and second stages, as shown in FIG. 19, the door 30 is opened from the closed state to G ₃ In the process of (1), the axis line segment is formed by I ₀ O ₀ The part sequentially passes through I ₁ O ₁ 、I ₂ O ₂ Counterclockwise rotate to I ₃ O ₃ Department (I) ₁ O ₁ →I ₂ O ₂ →I ₃ O ₃ ) Door body 3And 0 keeps the inward movement trend in the rotating and opening process, so that the outward displacement of the first side edge W caused by the pure rotation of the door body 30 is compensated, and the mutual interference between the door body 30 and the cabinet 100 is effectively avoided when the door body 30 is opened.

In combination with the third and fourth stages, as shown in FIG. 20, the door 30 is formed by G ₃ Open to G _max In the process of (1), the axis line segment IO is formed by I ₃ O ₃ Pass through I ₃ O ₄ Counterclockwise rotate to I ₃ O ₅ Department (I) ₃ O ₃ →I ₃ O ₄ →I ₃ O ₅ ) I.e. axis line segment IO is I ₃ A simple rotational movement is made for the center of rotation. That is, the door 30 is positioned at the third positioning point I ₃ The positioning central shaft I is a rotation shaft and does not displace inwards due to simple rotation, and the outward displacement of the first side edge W caused by the simple rotation is not compensated, so that the door body 30 is quickly opened to a larger angle, and the situation that the door body 30 moves inwards excessively to cover the taking and placing opening and influence the user to take and place food is avoided.

In some embodiments of the present application, as shown in FIG. 16, the door 30 is opened from a closed state to G ₂ The distance of inward movement of the door body 30 per unit angle of opening is denoted as delta ₁ ；

The door body 30 is formed by G ₂ Open to G ₃ The distance of inward movement of the door body 30 per unit angle of opening is denoted as delta ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein delta ₁ ＞δ ₂ . That is, during the opening process of the door body 30, the door body 30 is rotated and opened in the early stage and simultaneously performs a larger inward displacement compensation amount, and during the later rotation and opening of the door body 30, a smaller inward displacement compensation amount is performed. The outward displacement caused by the simple rotation of the first side edge W is mainly repaired when the door body 30 is opened, and the inward displacement is not compensated excessively in the later opening period of the door body 30, so that the door body 30 is prevented from moving excessively inward to shield the taking and placing opening, and the user is influenced to take and place food.

In combination with the above movement processes of the first to fourth stages, the door 30 is always in an inwardly moving state relative to the closed state thereof during the opening of the door 30.

To sum up, as shown in fig. 14 to 21, the door 30 is opened from the closed state to G _max In the process of > 90 DEG, the door body 30 rotates and moves inward for a certain distance, and then only performs a simple rotation motion. Wherein the door body 30 is opened from the closed state to G ₃ In the process, the door body 30 rotates around a dynamically changing point so that the door body 30 always moves inwards; while at the station body by G ₃ Open to G _max In the course of (a), the door body 30 is wound around a fixed point (I ₃ ) The door 30 is rapidly opened by rotating.

In the above embodiment, when the door 30 is opened to the maximum angle G _max In the process of > 90 DEG, the first rib P ₁ The whole course of the second convex rib Q always moves relative to the guide groove 6 ₁ The relative guide groove 6 always keeps moving along the whole course.

Referring to fig. 7 to 12, the door body 30 is rotated to open the maximum angle G from the closed state _max In the process of more than 90 degrees, the relative position relation between the centroid plane F and the first hinge shaft 41 and the second hinge shaft 42 is continuously changed; this will be described below.

The door body 30 is opened from the closed state to G ₃ The center of mass plane F is located on the side of the first hinge shaft 41, the second hinge shaft 42 and the positioning slot 5 away from the pick-and-place opening. I.e. the door 30 is opened from the closed state to G ₃ The centroid plane F is not between the first hinge axis 41 and the second hinge axis 42.

The door body 30 is formed by G ₃ Open to G _max During > 90 deg., the centroid plane F is always located between the first hinge axis 41 and the second hinge axis 42. In this embodiment, G ₃ ∈[30°，34°]Any one of the values in (a); g _max Any value of more than or equal to 90 degrees; g in the present embodiment ₃ ＝32°，G _max =114°. It can be seen that, in the present embodiment, the center of mass plane F is always located between the first hinge shaft 41 and the second hinge shaft 42 in most of the opening strokes (72% of the strokes, 32 ° -114 °) of the door 30, so as to ensure that the door 30 is better stressed and the door 30 is more stably opened.

Wherein, line segment Q ₀ P ₀ The midpoint of (2) is marked as a guiding midpoint H; guide midpoint HThe distance of the centroid plane F is noted as the offset distance R; wherein the offset distance R is a positive number when the guide midpoint H is located on the side of the centroid plane F away from the door front wall 31. Correspondingly, when the guide midpoint H is located on the side of the centroid plane F near the door front wall 31, the offset distance R is negative; when the guiding midpoint H is located on the centroid plane F, the offset distance R is 0.

In the present embodiment, the door 30 is opened from the closed state to G _max In the process of > 90 DEG, the guiding midpoint H is always located on the side of the centroid plane F away from the door front wall 31; that is, in this embodiment, the offset distance R is a positive number during the opening of the door 30. When the door body 30 is opened, an external force is applied to the door corner of the end of the door front wall 31 far from the door side wall 32, and the arrangement of the embodiment enables the first hinge shaft 41 and the second hinge shaft 42 to mainly guide the door corner position of the door body 30 close to the door rear wall 33 and the door side wall 32 so as to effectively balance the external force for driving the door body 30 to open, thereby reducing the shaking of the door body 30 and increasing the opening stability of the door body 30.

In the following process of opening the door body 30, the door body 30 is opened by G ₃ Open to G _max The stage in which the centroid plane F lies between the first hinge axis 41 and the second hinge axis 42 is illustrated.

Wherein, the opening angle of the door body is 0 DEG G ₁ 、G ₂ 、G ₃ 、G ₃ 、G _max The corresponding offset distances are sequentially denoted as R ₀ 、R ₁ 、R ₂ 、R ₃ 、R ₄ 、R ₅ . As an embodiment, R ₀ ＞R ₁ ＞R ₂ ＞R ₃ ＞R ₄ ；R ₂ ＞R ₅ ＞R ₃ ＞R ₄ 。

Specifically, the door body 30 is formed by G ₃ Open to G ₄ In the course of (a), the centroid plane F is located between the first hinge axis 41 and the second hinge axis 42, and the offset distance R of the guide midpoint H from the centroid plane F tends to decrease. Wherein G is ₄ ∈[88°，92°]Any of which. Namely, the door body 30 is formed by G ₃ The offset distance R tends to decrease during opening to around 90 °. As an arrangement, the door 30 is biased when it is opened to about 90 DEGThe displacement distance R is 0, i.e. the guiding midpoint H lies on the centroid plane F. In the process of opening the door body 30 from the closed state, as the moment of the door body 30 increases with the increase of the opening angle, the stability of the door body 30 is deteriorated, and shaking is easily generated; in the present embodiment, the door 30 is formed by G ₃ Open to G ₄ (G ₄ ∈[88°，92°]Any one of these values), the offset distance R between the guide midpoint H and the centroid plane F tends to decrease, matching the opening angle of the door 30 to enhance the stability of the door 30 during opening.

As an implementation, the door 30 is composed of G ₄ Open to G _max In the process of > 90 DEG, the guide midpoint H is located on the side of the centroid plane F near the door front wall 31, and the offset distance R is a positive number.

The door body 30 is formed by G ₄ Open to G _max In the process of the angle of more than 90 DEG, the offset distance R between the guiding midpoint H and the centroid plane F tends to increase. As an implementation, the door 30 is composed of G ₄ Open to G _max During the process of > 90 DEG, the offset distance R is any value from 0 to 5 mm. As an embodiment, when the door 30 is opened to G _max At > 90 deg., the centroid plane F is located near the guide midpoint H such that the gate 30 is at the most stable maximum angle G _max The state avoids the influence of the closing of the door body 30 caused by external force to take and put food materials by a user. As an arrangement, the door body 30 is opened to a maximum angle G _max Offset distance R of centroid plane F from guide midpoint H ₅ ∈[0，5]Any one of the values, units: mm.

The door body 30 is formed by G ₄ Open to G _max In the course of (not less than 90 °), the offset distance R is limited to a small range although it is increased, and the centroid plane F is near the center point (guide midpoint H) of the positioning line segment IO, effectively enhancing the opening later period of the door body 30 (opening approaching 90 ° to the maximum angle G _max Stage(s) stability; in addition, the corresponding guide track line K with the characteristics is smoother.

Since the hinge plate 40 is fixed to the case 10, the first hinge shaft 41, the second hinge shaft 42, and the positioning slot 5 are provided on the hinge plate 40. The positions of the first hinge shaft 41 and the second hinge shaft 42 with respect to the case 10 remain unchanged. In this embodiment, when the door 30 is closed, the door side wall 32 is flush with the first body side wall of the case 10. It should be noted that flush includes complete flush and also includes approximately flush, such as approximately flush with side walls less than 1mm apart. I.e. the two planar relationship in which the two side walls lie at a planar distance of less than 1mm is defined as flush.

As an alternative embodiment, as shown in connection with fig. 7 and 11, the positioning trajectory S is remote from the end third positioning point I of the door sidewall 32 ₃ With a reference plane M ₀ Is L ₁ . The front wall 31 of the door is approximately parallel to the plane of the pick-and-place opening;

when the door body 30 is opened to 90 °, the door front wall 31 is approximately parallel to the first body side wall; the upper center axis (positioning center axis I) of the door spindle 7 is located at a third positioning point I of the positioning track line S ₃ The method comprises the steps of carrying out a first treatment on the surface of the Positioning center axis I (third positioning point I) ₃ ) At a distance L from the door front wall 31 ₂ . In the above embodiment, the approximate parallelism is specifically defined as that the included angle between two planes belongs to any value of 0 ° to 2 °. That is, a two-plane relationship in which the two-plane included angle belongs to any one of 0 ° to 2 ° is defined as approximately parallel.

L ₁ And L is equal to ₂ Approximately equal, when the door body 30 is opened to 90 °, the door front wall 31 is flush with the first body side wall of the case 10; wherein L is ₁ And L is equal to ₂ Approximately equal is specifically defined as L ₁ And L is equal to ₂ The difference between (1) and (1) is any value of-1 mm to 1 mm.

L ₁ ＞L ₂ When the door body 30 is opened to 90 degrees, the door front wall 31 is retracted inside the first body side wall of the case body 10;

wherein, when the door body 30 is opened to 90 DEG, the door front wall 31 and the reference plane M ₀ The distance between them is denoted as the first distance lambda. Wherein the door front wall 31 is located at the reference plane M ₀ The first distance lambda is a positive number on the inner side of (a). As a settable way, lambda E [0.5,2]Units: mm. At this time, the door body 30 is located at the reference plane M ₀ Is advantageous in that the refrigerator inserted into the cabinet 100 can be opened at a larger angle.

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 an embodiment, L ₁ And L is equal to ₂ Approximately equal or L ₁ ＞L ₂ So that the door body 30 can be opened to a larger angle after being opened to 90 degrees, and a user can conveniently take and put articles.

As another embodiment, L ₁ ＜L ₂ ，0≤L ₂ -L ₁ Less than or equal to 0.2 alpha to reserve space to avoid collision of the door 30 with the cabinet 100.

As an implementation manner, in conjunction with fig. 7 to 13, the door 30 has a second side edge N and a first side edge W, and the second side edge N is closer to the case 10 than the first side edge W when the door 30 is in the closed state with respect to the case 10. In the present embodiment, a first reference plane M is further defined ₁ And a second reference plane M ₂ . Wherein, referring to FIG. 13, 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. The second reference plane M ₂ The plane of the access opening defined for the case 10 is not advanced by the presence of other components such as deformable door seals at the access opening of the case 10.

In the present embodiment, the door 30 is opened to a second angle G ₂ When the first side edge W exceeds the reference plane M ₀ The first side edge W is located at the reference plane M ₀ With a first reference plane M ₁ Between them. At this time, the first side edge W and the first reference plane M ₁ Is the smallest.

The door body 30 is closedOpen the box 10 to a second angle G ₂ In the course of (a), the first side edge W follows the first side edge track W ₀ W ₂ Toward and near the first reference plane M ₁ And a second reference plane M ₂ Is moved in the direction of a first side edge W and M of a first reference plane ₁ Is in a decreasing trend, i.e. the first side edge W exceeds the reference plane M ₀ Is increased in distance to a second angle G ₂ The maximum value is reached.

At the same time, the second side edge N follows a second side edge track N ₀ N ₂ Toward and away from the first reference plane M ₁ And the second side edge N is opposite to M of the second reference plane ₂ The distance tends to decrease.

In some embodiments, the first side edge trajectory W for movement of the first and second side edges W, N in respective directions ₀ W ₂ Located at a first reference plane M ₁ And a first side edge track W ₀ W ₂ With a first reference plane M ₁ Is greater than a first predetermined distance d ₁ The method comprises the steps of carrying out a first treatment on the surface of the Namely, the first side edge track W ₀ W ₂ Endpoint W of (2) ₂ With a first reference plane M ₁ Is a first predetermined distance d ₁ ；d ₁ Not less than 0.5h; where h is the thickness of the door 30. Specifically, the thickness of the door body 30 is not less than 2 cm.

Above, a first preset distance d ₁ The relative definition of (a) determines how far the first side edge W may extend beyond the sides of the case 10. In practice, the first side edge W may be allowed to extend beyond the sides of the case 10, for example, for use in the insertion of the case 10 assembly, the case 10 may have a gap (α) with the cabinet or wall into which it is inserted that allows the first side edge W to extend beyond the sides of the case 10.

In the pivotal connection between the door 30 and the case 10, the door 30 is opened to G ₂ In the course of (a), the second side edge N is opposite to the second reference plane M ₂ The first lateral edge W being opposite to the first reference plane M ₁ The final direction of movement of (c) is always the direction described above.

This practice isIn examples, G ₂ ∈[30°，34°]Any one of the values in (a). The door 30 is opened in an initial stage (closed state to G ₂ ) Has large inward movement displacement to efficiently compensate the outward movement distance of the first side edge W caused by the simple rotation of the door body 30, and effectively avoid the interference between the door body 30 and the cabinet 100.

Generally, in the present embodiment, the door 30 is opened from the closed state to the second angle G with respect to the case 10 ₂ In the course of (a), the first side edge W follows a curved first side edge locus W ₁ W ₂ Moving the second side edge N along the curved second side edge track N ₀ N ₂ And (5) movement. And the shape, trend, etc. of the track thereof are defined, and the door body 30 moves according to the track, so that excessive extrusion of the door body 30 to the case 10 and the door body 30 protruding beyond the side of the case 10 can be weakened or even prevented.

In the present embodiment, the door 30 is formed from G ₂ Open to G relative to the case 10 _max In the course of (a), the first side edge W follows the third side edge locus W ₂ W ₅ Toward and away from the first reference plane M ₁ And is close to the second reference plane M ₂ Is moved in the direction of a first lateral edge W and a first reference plane M ₁ Is in an increasing trend; the second side edge N is along the fourth side edge track N ₂ N ₅ Toward and away from the first reference plane M ₁ And the second side edge N is opposite to M of the second reference plane ₂ The distance tends to increase and decrease. Specifically, when the door 30 is opened at an angle G' (G ₃ ＞G`＞G ₂ ) When the second side edge N and the second reference plane M ₂ Is the smallest. Wherein the door body 30 is formed by G ₂ The door 30 is opened from the closed state to G' against the movement tendency of the case 10 to open to G ₂ The movement trend of (c) is kept consistent. That is, during the process of opening the door 30 from the closed state to G', the second side edge N and the second reference plane M ₂ Is a decreasing trend; and the door 30 is opened from G' to G _max In the course of (a), the second side edge N and the second reference plane M ₂ Is in an increasing trend; the above arrangement effectively prevents the second side edge N from squeezing the case 10. In this embodiment, G ₃ ＝86°。

In addition, as a settable manner, the door body 30 is formed from G ₂ Open to G relative to the case 10 ₄ In the course of (1) the door 30 is opened by a unit angle, the first side edge W and the second reference plane M ₂ The distance change of (a) is denoted as xi ₁ ；

Door body 30 is from G ₄ Open to a maximum angle G relative to the case 10 _max In the course of (1) the door 30 is opened by a unit angle, the first side edge W and the second reference plane M ₂ The distance change of (a) is denoted as xi ₂ ；ξ ₁ 、ξ ₂ All are positive numbers;

wherein, xi ₁ ＞ξ ₂ . I.e. the later opening stage of the door body 30 (G ₄ To G _max Stage (90-114 °)), the distance between the first side edge W and the plane where the taking and placing port is located changes gently, so as to avoid the first side edge W from extruding the door body 30, and facilitate the door body 30 to be opened to a larger angle, and facilitate the user to take and place food materials.

In some embodiments of the present application, door 30 is opened from G 'to G' relative to case 10 ₄ In the course of (1), every time the door body 30 is opened by a unit angle, the second side edge N and the second reference plane M ₂ The distance change of (2) is expressed as mu ₁ ；

Door body 30 is from G ₄ Open to a maximum angle G relative to the case 10 _max In the course of (1), every time the door body 30 is opened by a unit angle, the second side edge N and the second reference plane M ₂ The distance change of (2) is expressed as mu ₂ ；μ ₁ 、μ ₂ All are positive numbers; wherein mu ₁ ＜μ ₂ The method comprises the steps of carrying out a first treatment on the surface of the Namely, the door body 30 is opened in the later stage (G ₄ To G _max Stage (90-114 °)), second side edge N and second reference plane M ₂ The distance of the second side edge N (the plane of the pick-and-place opening) is rapidly changed, and the second side edge N is rapidly far away from the second reference plane M ₂ To rapidly release the compression of the door seal by the second side edge N.

According to the characteristics of the track, the door 30 does not squeeze the case 10 during the opening process of the door 30, and does not protrude beyond the side of the case 10 too much, and the movement is smooth.

In this embodiment, G may be provided _max ∈[110°，120°]Any one of the values in (a).

In addition, it should be noted that the setting range of each angle referred to above is only one practical range; the relative motion conditions in the present application are not limited by the specific ranges of the angles.

In some embodiments of the present application, referring to fig. 22 to 30, the door body 30 includes a mounting block 80, the mounting block 80 is mounted on the door body 30 at a position opposite to the hinge plate 40, and the guide groove 6 is formed on the mounting block 80. In this embodiment, a first mating portion is disposed at an end of the hinge away from the first body sidewall, and the mounting block 80 has a second mating portion, where the second mating portion is used to mate with the first mating portion to lock and unlock the door 30 and the box 10.

Referring specifically to fig. 22-24, fig. 22 and 23 are schematic diagrams illustrating the cooperation between a door end cover and a mounting block disposed at the lower end of a door body; FIG. 24 is a schematic view of an exploded view of a door end cap and mounting block disposed on the upper end of the door body;

in this embodiment, the mounting block 80 provided at the lower end of the door body 30 is exemplified. As shown in fig. 22 and 23, the mounting block 80 is formed with a guide groove 6; wherein the guide groove 6 comprises a groove bottom 60 and a circumferential groove wall 61 surrounding the edge of the groove bottom 60; the circumferential groove wall 61 encloses a groove opening 63 arranged opposite the groove bottom 60. The door body 30 comprises a door end cover 38, and the door end cover 38 is arranged at the end part, close to the hinge, of the door body 30; the door end cap 38 has a mounting slot 34 formed therein, the mounting slot 34 for securing a mounting block 80. As one embodiment, the mounting block 80 is mounted in the mounting slot 34, and then the mounting block 80 is fastened to the door body 30 by a first fastener. Specifically, the first fixing member may be provided as a screw or the like.

In this embodiment, the bottom of the mounting groove 34 has a recess 39, and the recess 39 is polygonal. The end of the door spindle 7 remote from the hinge has a fixing block 70, which fixing block 70 corresponds to the formation of the recess 39 and is fitted into the recess 39. Wherein the outer peripheral side wall of the fixed block 70 cooperates with the inner peripheral wall of the recess 39 to effectively restrict relative rotation of the fixed block 70 and the recess 39. The mounting block 80 has a through hole 64 penetrating the guide groove 6, and the door shaft 7 passes through the through hole 64 and extends into the guide groove 6. As described above, the fixing block 70 is sandwiched between the door end cover 38 and the mounting block 80 to effectively restrict the movement of the fixing block 70 and the door shaft 7 in the axial direction of the door shaft 7. The door end cover 38, the door shaft 7 and the mounting block 80 are arranged in a split mode, and processing is convenient; through above cooperation setting, carry out effectual fixed, ensure the holistic connection fastness of structure.

As an embodiment, the mounting block 80 includes a plate body 81, and the plate body 81 is disposed around the outer circumferential side wall of the guide groove 6. In this embodiment, the screws connecting the mounting blocks 80 and the mounting grooves 34 are fixed on the side of the plate 81 away from the door side wall 32, i.e. the screw fixing position is located on the side of the fixing position (through hole 64) of the door shaft 7 away from the door side wall 32, so that the connection firmness of the mounting blocks 80 and the door body 30 is effectively increased.

The bottom wall of the mounting groove 34 is formed with a receiving cavity 35 on a side thereof adjacent to the door side wall 32, and the guide groove 6 is at least partially received in the receiving cavity 35, and the plate 81 cooperates with the bottom wall of the mounting groove to effectively define the position of the guide groove 6. In this embodiment, the groove bottom 60 of the guide groove 6 is matched with the bottom of the accommodating chamber 35 and is connected by a second fixing member. In this embodiment, three second fixing members are provided, and the door shaft 7 has a quadrilateral vertex angle, so as to increase the connection firmness of the guide groove 6 and the door end cover 38.

In some embodiments of the present application, the second mating portion on the mounting block 80 is provided as a locking structure, and in particular, the second mating portion includes a latch hook 82 provided on a side of the plate 81 remote from the door sidewall 32. The latch hook 82 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 82 faces the plate 81 (an opening of the latch hook 82 faces the door side wall 32), and a free end of the latch hook 82 is located at a side thereof close to the door rear wall 33.

The first engaging portion provided on the hinge plate 40 on the side away from the first body side wall is a stopper portion 403, and a hooking gap 404 is formed on the side of the stopper portion 403 close to the case 10. When the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 404, the stop part 403 is positioned in the lock hook 82, and the lock hook 82 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 82 is forced to deform to overcome the blocking of the stop portion 403, and thus, is separated from the stop portion 403.

The latch hook 82 may include a root 83 and a hooking portion 84. The root portion 83 is connected to the plate 81, and the hooking portion 84 is connected to the root portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 83 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 83 and the door body 30, so that the latch hook 82 only deforms at the hooking portion 84 when being separated from the stop portion 403.

The free ends of the hooking portion 84 and the stopping portion 403 are arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stopping portion 403 along an arc or separate from the stopping portion 403.

As shown in fig. 25 to 27, when the door body 30 is closed from the open state, the free end of the hooking portion 84 gradually approaches the stop portion 403 as the door body 30 rotates and closes, and when the hooking portion 84 abuts against the stop portion 403, the door body 30 continues to close, the hooking portion 84 deforms under the action of the stop portion 403, the stop portion 403 enters the hooking portion 84, and the free end of the hooking portion 84 enters the hooking gap 404; the latch hook 82 is locked with the hinge plate 40 to lock the door 30 with the case 10.

When the door 30 is opened from the closed state, the process is opposite to the process of closing the door 30, and will not be described again. When the door 30 is closed from the open state to an angle smaller than the set angle (set to 7 ° in the present embodiment), the door 30 is automatically closed by the hooking portion 84 and the stopper portion 403. As an embodiment, when the door body 30 is opened to a set unlock angle (set to 5 ° to 8 ° in the present embodiment), the hooking portion 84 is separated from the stopper portion 403. As a settable way, the unlock angle is set to G ₁ The door body 30 is opened to G ₁ When the first hinge shaft 41 is opposite to the first guide section K ₁ During movement, the hooking portion 84 is separated from the stop portion 403. In the above arrangement, at the initial stage of opening the door body 30, mainly the rotation motion, the inward displacement compensation amount is small, so that the latch hook 82 and the stop part 403 are conveniently and rapidly separated, and the door body 30 is conveniently and rapidly opened. Corresponding to the door 30 being opened from the closed state to the second angle G ₂ In the process, the second hinge shaft 42 is separated from the guide slot 6, so that jamming is effectively avoided, and the latch hook 82 is conveniently and quickly separated from the stop part 403.

In some embodiments, the door body 30 may be provided with a first protrusion 36, and a clearance groove 37 is formed between the first protrusion 36 and a groove wall of the mounting groove 34. The root portion 83 is formed with a plug board inserted in the clearance groove 37, so that deformation of the root portion 83 in a direction from the door front wall 31 to the door rear wall 33 can be prevented by the restriction of the first projection 36 and the groove wall of the mounting groove 34. In this embodiment, the screw is fixedly located at the position where the first protrusion 36 is matched with the root joint 83; i.e., the first securing member passes through the root portion 83 and the first projection 36 to secure the mounting block 80 to the door end cap 38.

Specifically, the plugboard is an arc-shaped board; the first projection 36 has a cylindrical shape, and an arcuate plate-like plug board is fitted to the outer peripheral wall of the first projection 36 and is at least partially located in the clearance groove 37. The above arc arrangement increases the limiting area of the clearance groove 37 to the root joint 83, increases the connection strength of the mounting block 80 and the door body 30, and effectively limits the deformation of the root joint 83.

Alternatively, as an embodiment, as shown in fig. 22, the mounting block 80 at the upper end of the door body 30 has a portion where only the guide groove 6 is provided, excluding the locking structure. Correspondingly, when the structure of the mounting block 80 is changed, the mounting groove 34 provided on the door body 30 is adapted thereto to receive and fix the mounting block 80.

The mounting block 80 may be made of a POM material, and the POM has a characteristic of high abrasion resistance, so that the service life of the hinge can be prolonged. In addition, in this embodiment, the positioning groove 5 and the locking structure are integrally formed to form the mounting block 80, so that the structural accuracy is increased, and the integrity and strength of the mounting block 80 are improved. The installation block 80 which integrates the guide groove 6 and the locking structure into a whole can be integrally formed in an injection molding mode.

In some embodiments of the present application, a limiting structure for limiting the door 30 to a maximum angle is provided between the door 30 and the hinge plate 40, so as to prevent damage to the mounting block 80 when the door is opened to a certain angle by a large force.

Specifically, referring to fig. 22, the lower end of the door body 30 is provided with a limiting portion 85, and the limiting portion 85 is located at the front end of a mounting block 80 provided at the lower end of the door body 30; hinge plate 40 is spaced apart from case 10A limiting surface is formed at the end and close to the side wall of the first body. When the door body 30 rotates to the maximum allowable position (door body 30 opening angle G _max ) The limiting portion 85 abuts against the limiting surface of the hinge plate 40, so that the door body 30 is stopped from continuing to rotate.

In the present embodiment, the stopper 85 includes an insertion portion 86 and a stopper bar 87. The limiting portion 85 may be a sheet metal member.

The fitting portion 86 is plate-shaped and is fitted into the fitting groove 34 at the lower end of the door body 30, and the plate 81 of the fitting block 80 clamps the fitting portion 86 to the door body 30 from the lower end, thereby fixing the stopper 85 to the door body 30.

The limiting bar 87 is in a convex strip shape, and the edge of the embedded part 86, which is close to the door front wall 31, extends downwards to form the lower surface of the door body 30, so that when the door body 30 drives the limiting part 85 to rotate to the maximum angle, the limiting bar 87 can be blocked by the limiting surface of the hinge plate 40, and the door body 30 is forced to stop opening.

The limiting part 85 is clamped on the door body 30 through the mounting block 80, so that a connecting structure between the limiting part 85 and the door body 30 is omitted, the product structure is simplified, and the door has the advantage of simple structure.

It should be noted that the limiting portion 85 may be disposed at an upper end of the door body 30, which is not described herein.

In other embodiments of the present application, as shown in fig. 28-30, fig. 28 is a schematic diagram illustrating the cooperation between a door end cover disposed at the upper end of a door body, a mounting block and a door shaft; fig. 29 to 30 are schematic views showing the cooperation of the door end cover and the mounting block and the door shaft, which are disposed at the lower end of the door body;

As shown in fig. 28-30, a shaft sleeve 65 is arranged on the bottom wall of the guide groove 6 formed on the mounting block 80, the door shaft 7 is mounted in the shaft sleeve 65, and the shaft sleeve 65 is matched with the positioning groove 5 on the hinge plate to avoid wearing the door shaft 7; and after the shaft sleeve 65 is damaged, the installation block 80 provided with the shaft sleeve 65 can be replaced for maintenance, thereby being convenient for maintenance. As an implementation manner, the mounting block 80 and the shaft sleeve 65 are integrally formed, so that the connection strength and the integrity between the mounting block 80 and the shaft sleeve are effectively increased, the structural strength of the mounting block 80 is improved, and the service life of the mounting block is effectively ensured.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, characterized in that it comprises:

2. The refrigerator of claim 1, wherein: the guide groove comprises a groove bottom and a circumferential groove wall surrounding the groove bottom; a plate body is arranged around the circumferential groove wall of the guide groove;

3. The refrigerator of claim 2, wherein: the bottom wall of the accommodating cavity is provided with a pit matched with the fixed block, and the inner side wall of the pit is matched with the outer peripheral wall of the fixed block.

4. The refrigerator according to claim 1 or 2 or 3, wherein: the central line of the positioning groove along the extending direction is parallel to the plane of the pick-and-place opening.

5. The refrigerator according to claim 1 or 2 or 3, wherein: the first hinge shaft is positioned at one side of the positioning slot close to the first body side wall; the second hinge shaft is positioned at one side of the positioning groove away from the side wall of the first body; the first hinge shaft is provided with a first convex rib P matched with the groove wall of the guide groove ₁ The second hinge shaft is provided with a second convex rib Q matched with the groove wall of the guide groove ₁ 。

6. The refrigerator of claim 5, wherein: the inner wall of the guide groove defines a guide track line K, and the centroid of the guide track line K is marked as a guide centroid O;

Wherein the fifth guiding section K ₅ And the first guiding section K ₁ Is marked as a first inflection point A, the first guide section K ₁ Second guide section K ₂ Third guide section K ₃ Fourth guide section K ₄ Fifth guide section K ₅ The connection points which are connected in sequence are sequentially marked as a second inflection point B and a third inflection pointAn inflection point C, a fourth inflection point D and a fifth inflection point E;

7. The refrigerator of claim 6, wherein: the first convex edge P when the door body is closed ₁ The second convex edge Q is matched with the first inflection point A ₁ And the fourth guiding section K ₄ Matched with each other.

8. The refrigerator according to claim 1 or 2 or 3, wherein: the door body has a centroid plane F passing through the centroid of the door body and parallel to the door front wall; the axis passing through the cross-sectional centroid of the first hinge axis is denoted as the first centroid axis P ₀ The axis passing through the cross-sectional centroid of the second hinge axis is denoted as the second centroid axis Q ₀ ；

9. The refrigerator according to claim 1 or 2 or 3 or 6 or 7, wherein: the front door wall and the side door wall intersect to form a first side edge W; the plane of the pick-and-place opening is marked as a second reference plane M ₂ The method comprises the steps of carrying out a first treatment on the surface of the When the door body is closed, one side of the first side edge W, which is far away from the picking and placing opening, 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;

The door body is from a fourth angle G ₄ Open to a maximum angle G relative to the box _max In the process of (1), each time the door body is opened, the first side edge W and the second reference plane M ₂ The distance change of (a) is denoted as xi ₂ ；G _max ＞G ₄ ＞G ₂ ，ξ ₁ 、ξ ₂ All are positive numbers; wherein, xi ₁ ＞ξ ₂ 。

10. The refrigerator according to claim 1 or 2 or 3 or 6 or 7, wherein: the door body is opened to a second angle G from a closed state ₂ In the process of (2), the inward movement distance of the door body per unit angle of opening is recorded as delta ₁ ；