CN115235160A

CN115235160A - Refrigerator

Info

Publication number: CN115235160A
Application number: CN202210294046.3A
Authority: CN
Inventors: 杨春; 常雪松; 郭动; 栾福磊; 张向平; 鲍雨锋
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-10-25
Anticipated expiration: 2042-03-24
Also published as: CN115235160B

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge arranged on the refrigerator body, wherein the door body is provided with a door body; the hinge is provided with a Lelo triangular block and a hinge shaft positioned at the top angle of the Lelo triangular block close to the box body; the door body comprises a door front wall and a door side wall; the end part of the door body close to the hinge is provided with a guide groove, and the Leluo triangular block is matched with two opposite groove walls of the guide groove; a curved positioning groove is arranged at the bottom of the guide groove, extends from one end far away from the door side wall to the direction close to the door side wall and is matched with the positioning groove; the positioning slot is close to the door rear wall relative to the door front wall; in the process that the door body is opened from a closed state, the Leluo triangular block is always matched with the two opposite groove walls of the guide groove; the hinge shaft moves relative to the positioning groove so that the door body can move inwards and forwards for a certain distance while rotating; the refrigerator provided by the invention has the advantages that the door body does not exceed or excessively exceeds the side surface of the refrigerator body when being opened, and meanwhile, the door body is prevented from interfering with the refrigerator body when being opened, so that the door body is opened more smoothly.

Description

Refrigerator with a door

Technical Field

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

Background

In the related art, most of hinge structures of refrigerator doors are in a single-shaft form, the doors rotate around hinge shafts through the cooperation of the hinge shafts and shaft sleeves of the doors, and corners of the doors can exceed the side faces of a refrigerator body in the door opening process of the doors of the hinge structures.

For the embedded refrigerator, the refrigerator is generally placed in a cabinet, and during the process of opening the door to 90 degrees, the corner of the door body cannot exceed the size of the refrigerator body too much, so that the use of the refrigerator is limited.

Disclosure of Invention

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

Therefore, the present application is directed to providing a refrigerator having a hinge structure such that a door does not extend beyond or excessively extends beyond a side of a cabinet when the door is opened.

A refrigerator according to the present application, comprising:

a cabinet defining an insulated storage compartment; the box body comprises a first body side wall and a second body side wall which are oppositely arranged;

the hinge is arranged on the box body and is close to the first body side wall; the hinge is provided with a Leluo triangular block and a hinge shaft; the hinge shaft is positioned at the vertex angle of the Leluo triangular block close to the box body;

the door body is provided with a door front wall far away from the box body when the door body is closed, a door rear wall opposite to the door front wall, and a door side wall close to the hinge and connected with the door front wall;

the guide groove is arranged at the end part of the door body close to the hinge; the Reullo triangle block is arranged in the guide groove;

the positioning groove is curved and is positioned on the groove bottom of the guide groove; the positioning groove extends from one end far away from the door side wall to the direction close to the door side wall; the hinge shaft is matched with the positioning groove; said positioning slot being proximate said door rear wall relative to said door front wall;

when the door body is opened from a closed state, the Reuluo triangular block is always matched with two opposite groove walls of the guide groove and moves relative to the guide groove; the hinge shaft moves relative to the positioning groove so that the door body can rotate and move inwards and forwards for a certain distance.

As an embodiment of the present application, a central trajectory line of the positioning groove is denoted as trajectory line S; the minimum distance between the trajectory S and the front wall of the door is recorded as D ₁ The maximum distance between the trajectory line S and the rear wall of the door is recorded as D ₂ (ii) a Wherein D is ₂ ：D ₁ ∈[1/2，1)。

As an embodiment of the present application, a center line of the guide groove in an extending direction thereof is parallel to the door sidewall.

As an embodiment of this application, the guide way includes first gib block and the second gib block of parallel arrangement, first gib block is located the second gib block is kept away from one side of door jamb, just the constant head tank is located between first gib block and the second gib block, and follow by first gib block leads the direction of second gib block extends.

As an embodiment of the present application, a distance between one end of the positioning groove far away from the door side wall and the door front wall is denoted as D ₀ And the distance between one end of the positioning groove close to the door side wall and the door front wall is recorded as D ₁ Wherein D is ₀ ≥D ₁ 。

As an embodiment of the present application, a vertex angle of the reuleaux triangle block close to the box body is denoted as a first vertex angle a, and the hinge axis is located at the first vertex angle a;

the central axis of the hinge shaft is marked as a positioning central axis P, and the center of the Leluo triangular block is marked as O; wherein the positioning central axis P is located on the line segment AO.

As an embodiment of the present application, the length of the line segment AP is smaller than the length of the line segment PO.

As an embodiment of the present application, the reuleaux triangle includes a second vertex angle B and a third vertex angle C; the first top angle A, the third top angle C and the second top angle B are sequentially away from the box body.

As an embodiment of the present application, the third vertex angle C is located at a side of the first vertex angle a and the second vertex angle B close to the first body side wall.

As an embodiment of the present application, the line segment AB is parallel to the first body side wall.

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

the invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge arranged on the refrigerator body, wherein the door body is provided with a door body; the hinge is provided with a Lelo triangle block and a hinge shaft positioned at the top corner of the Lelo triangle block close to the box body; the door body comprises a door front wall and a door side wall; the end part of the door body close to the hinge is provided with a guide groove, and the Leluo triangular block is matched with two opposite groove walls of the guide groove; a curved positioning groove is arranged at the bottom of the guide groove and extends from one end far away from the door side wall to the direction close to the door side wall; the hinge shaft is matched with the positioning groove; wherein the detent is proximate the door rear wall relative to the door front wall; in the process that the door body is opened from a closed state, the Leluo triangular blocks are always matched with the two opposite groove walls of the guide grooves and move relative to the guide grooves; the hinge shaft moves relative to the positioning groove so that the door body can move inwards and forwards for a certain distance while rotating; the refrigerator provided by the invention has the advantages that the door body does not exceed or excessively exceeds the side surface of the refrigerator body when being opened, and meanwhile, the door body is prevented from interfering with the refrigerator body when being opened, so that the door body is opened more smoothly.

Drawings

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

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 schematic view of a portion of the structure of FIG. 2;

FIG. 4 is an exploded view of the hinge at the upper right corner of the refrigerator according to the present invention;

FIG. 5 is a view of the hinge of the refrigerator door in a closed state;

FIG. 6 shows the door opening of the refrigerator of the present invention to G ₁ View at the hinge;

FIG. 7 shows the door opening of the refrigerator of the present invention to G ₂ View at the hinge;

FIG. 8 shows the door opening of the refrigerator of the present invention to G ₃ View at the hinge;

FIG. 9 is a view showing that the door of the refrigerator of the present invention is opened to G ₄ View at the hinge;

FIG. 10 shows the door opening of the refrigerator of the present invention to G _e View at the hinge;

FIG. 11 shows the door opening of the refrigerator of the present invention to G ₅ View at the hinge;

FIG. 12 shows the door opening of the refrigerator of the present invention to G _max View at hinge > 90 °;

FIG. 13 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₁ The relative position schematic diagram of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 14 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₂ A schematic diagram of the position relationship of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 15 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₃ The schematic diagram of the position relationship of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 16 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₄ A schematic diagram of the position relationship of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 17 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention _e A schematic diagram of the position relationship of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 18 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₅ The schematic diagram of the position relationship of the hour-glass triangle block relative to the guide groove and the hinge shaft relative to the positioning groove;

FIG. 19 shows the door opening to G relative to the closed state of the refrigerator according to the present invention _max A schematic diagram of the position relationship of the Leillo triangle block relative to the guide groove and the hinge shaft relative to the positioning groove when the angle is more than 90 degrees;

FIG. 20 is a view from the closed state to G of the door of the refrigerator in accordance with the present invention _max The motion situation of the Reuluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process of being more than 90 degrees is schematically shown;

FIG. 21 shows the door opening from the closed state to G ₃ The motion situation of the Leluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process is schematically shown;

FIG. 22 is a schematic view of a refrigerator door assembly G according to the present invention ₃ Is opened to G ₅ The motion situation of the Lelo triangle block relative to the guide groove and the hinge shaft relative to the positioning groove in the process is schematically shown;

FIG. 23 is a schematic view of a refrigerator door assembly G according to the present invention ₅ Open to G _max The motion situation of the Reuluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process of more than 90 degrees is schematically shown;

FIG. 24 is a schematic view of a refrigerator door assembly G according to the present invention ₃ Open to G _e The motion situation of the Leluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process is schematically shown;

FIG. 25 is a schematic view of a refrigerator door assembly G according to the present invention _e Open to G _max The motion situation of the Reuluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process of more than 90 degrees is schematically shown;

FIG. 26 is a view showing the door of the refrigerator according to the present invention from the closed state through G ₁ Open to G ₂ The motion situation of the Leluo triangular block relative to the guide groove and the hinge shaft relative to the positioning groove in the process is schematically shown;

FIG. 27 is a state of the refrigerator of the present invention opened to G in a closed state _max The motion situation of the side edge K in the process of more than 90 degrees is shown schematically.

In the above figures: a case 10; a storage chamber 20; a cabinet 100; a door body 30; a door front wall 31; a door side wall 32; a lateral edge K; a door rear wall 33; a hinge plate 40; a connecting portion 401; an extension 402; a hinge shaft 4; a Relo triangle 5; positioning the central shaft P; a guide center point O; a positioning groove 6; a trajectory line S; first positioning endpoint P ₀ (ii) a Second positioning endpoint P _e (ii) a First displacement point P ₁ (ii) a Second displacement point P ₂ (ii) a Third displacement point P ₃ (ii) a Fourth displacement point P ₄ (ii) a Fifth displacement point P ₅ (ii) a Sixth displacement point P ₆ (ii) a A guide groove 7; a first guide strip 8; a second guide strip 9.

Detailed Description

The invention is described in detail below by way of exemplary embodiments. It should be understood, however, 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 is to 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 those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

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

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

Referring to fig. 1, the refrigerator includes a cabinet 10 having a storage chamber 20, a door 30 connected to the cabinet 10 to open and close the storage chamber 20, and a cooling device supplying cold air to the storage chamber 20. The refrigeration device is prior art and will not be described herein.

The cabinet 10 includes an inner container defining the storage chamber 20, an outer container coupled to an outer side of the inner container to form an external appearance of the refrigerator, and an insulation layer disposed between the inner container and the outer container to insulate the storage chamber 20. The cabinet 10 defines a plurality of storage compartments 20. In the present embodiment, the plurality of storage compartments 20 include a refrigerating compartment and a freezing compartment located below the refrigerating compartment.

A pick-and-place opening is formed at a front end of the storage chamber 20 to put food into the storage chamber 20 or take food out of the storage chamber 20; the cabinet 10 is provided with a rotatable door 30 to open or close the access opening of the storage compartment 20. Specifically, the door 30 is rotatably connected to the cabinet 10 by a hinge located at an upper portion and a hinge located at a lower portion.

The case 10 includes first and second body sidewalls (i.e., left and right sidewalls of the case 10) that are oppositely disposed; the hinge is arranged on the box body 10 and close to the first integral side wall; the door 30 has a door front wall 31 distant from the cabinet 10 when the door 30 is closed, a door side wall 32 adjacent to the hinge and connected to the door front wall 31, and a door rear wall 33 adjacent to the cabinet 10 and disposed opposite to the door front wall 31. For example: when the hinge is located on the right side of the box body 10 and the door body 30 is closed, the right side surface of the door body 30 is a door side wall 32; when the hinge is located on the left side of the cabinet 10, the left side surface of the door 30 is the door side wall 32 when the door 30 is closed. The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a side edge K.

Referring to fig. 2 to 4, the hinge has a reuleaux triangle 5, a hinge axis 4 fixed with the reuleaux triangle 5 and perpendicular to the reuleaux triangle 5. The Reuleaux triangle 5 is a flat plate in the form of Reuleaux triangle (Reuleaux triangle). The end of the door 30 near the hinge is provided with a guide groove 7. In the embodiment, the guide groove 7 is defined by a first guide strip 8 and a second guide strip 9 which are arranged in parallel; a positioning groove 6 is arranged in the area between the first guide strip 8 and the second guide strip 9; i.e. the positioning slot 6 is located at the bottom of the guide slot 7. The positioning slot 6 is arranged in a direction from the first guide strip 8 to the second guide strip 9. In addition, the first guide strip 8 and the second guide strip 9 both extend along the direction from the door front wall 31 to the door rear wall 33, and the first guide strip 8 is located on the side of the second guide strip 9 far away from the door side wall 32; i.e. the guide groove 7 extends in a direction from the door front wall 31 to the door rear wall 33.

It should be noted that the guide groove 7 is not limited to the above form defined by the first guide strip 8 and the second guide strip 9, and a concave guide groove 7 may be directly formed at the end of the door body, the reuleaux triangle 5 is engaged with the opposite two groove walls of the guide groove 7, and the positioning groove 6 is formed at the bottom of the guide groove 7.

Wherein the hinge shaft 4 is adapted to the positioning groove 6, and the Leluo triangular block 5 is adapted to the guide groove 7; in this embodiment, the reuleaux triangle 5 is always in clearance fit with the two opposite groove walls of the guide groove 7. Optionally, the clearance fit clearance is set in the range of 0-0.3 mm. As one possible arrangement, the side length of the regular triangle of the reuleaux triangle 5 is a, and the width of the guide groove 7 is equal to the side length of the regular triangle of the reuleaux triangle 5, that is, the width of the guide groove 7 is a. When the reuleaux triangle 5 moves relative to the guide groove 7, the reuleaux triangle 5 is always tangent to the first guide strip 8 and the second guide strip 9. During the process of opening or closing the door 30 by rotation, the hinge shaft 4 moves relative to the positioning groove 6, and the reuleaux triangle 5 moves relative to the guide groove 7.

Here, the embodiment of the present invention will be described by taking an example in which the hinge shaft 4 and the reuleaux triangle 5 are provided on the hinge, and the positioning groove 6 and the guide groove 7 are provided on the door 30. The arrangement of the hinge shaft 4, the reuleaux triangle 5, the positioning slot 6 and the guide slot 7 is not limited to the arrangement and matching on the hinge or the door body 30. The hinge shafts 4 are matched with the positioning grooves 6, one of the hinge shafts is arranged on the door body 30, and the other hinge shaft is arranged on the hinge; the Lelo triangular block 5 is matched with the guide groove 7, the Lelo triangular block 5 is fixed with the hinge shaft 4, the positioning groove 6 is located in the guide groove 7, the position of the Lelo triangular block 5 is consistent with the position of the hinge shaft 4, and the position of the positioning groove 6 is consistent with the position of the guide groove 7. The above positions are different, but the principle is the same, and detailed description is not given.

The hinge includes a hinge plate 40 fixedly coupled to the case 10, and the hinge plate 40 includes: a connection portion 401 connected to the casing 10, an extension portion 402 extending forward from the connection portion 401 and having a horizontal plate shape. The connection portion 401 may be fastened to the top wall of the case 10 by a fastener such as a screw, a pin, and a bolt.

Specifically, the hinge at the upper end of the door 30 includes a hinge plate 40 connected to the upper end of the box 10, and the hinge shaft 4 and the reuleaux triangle 5 are fixedly connected to the hinge plate 40. The hinge plate 40, the hinge shaft 4 and the reuleaux triangle 5 may be integrally formed; however, unlike this, the hinge plate 41, the hinge shaft 4, and the reuleaux triangle 5 may be provided separately and assembled with each other. Wherein the hinge shaft 4 and the reuleaux triangle 5 are formed on the extension 402, and the hinge shaft 4 extends vertically downward.

The hinge at the lower end of the door 30 is connected to the front end surface of the cabinet 10 at a connection portion 401. The hinge axis 4 and the reuleaux triangle 5 are on the hinge plate 40, the hinge axis 4 extending upwards.

Corresponding to the position of the hinge plate 40, the upper and lower ends of the door 30 are provided with a positioning groove 6 and a guide groove 7. And the two positioning grooves 6 at the upper end and the lower end of the door body 30 correspond to each other in vertical direction, and the two guide grooves 7 correspond to each other in vertical direction. So that the hinge provided at the upper end of the door body 30 and the hinge provided at the lower end of the door body 30 move in synchronization.

In this embodiment, with reference to fig. 2, a plane of a side surface (first body side wall) of the box 10 close to the hinge plate 40 is defined as a reference plane M, the refrigerator is accommodated in the cabinet 100, a side of the reference plane M close to the cabinet 100 is referred to as an outer side, and a side of the reference plane M close to the storage chamber 20 opposite to the outer side is referred to as an inner side. When the refrigerator is used while being placed in the cabinet 100, in order to prevent the user from having an uneven floor and the cabinet 100 from being deformed, etc., the cabinet 100 is sized such that the distance α =5mm from the side surface of the refrigerator (i.e., the first integral sidewall is the reference plane M). In order to ensure that the door 30 of the refrigerator is normally opened, the side edge K of the door 30 cannot exceed the side surface (the reference plane M) of the refrigerator body 10 too much during the rotation process of the door 30, so as to avoid the door 30 being unable to be normally opened due to the collision of the side edge K with the cabinet 100.

In this embodiment, the positioning groove 6 is a curved groove; the distance between the positioning groove 6 and the door front wall 31 increases and then decreases in the direction from the end away from the door side wall 32 to the end close to the door side wall 32. In this embodiment, the positioning groove 6 is a smooth curve. In the projection of the top wall of the box body 10, the door front wall 31 is marked as an x-axis, the intersection point of a projection line of a groove wall (a first guide strip 8) of the guide groove 8 far away from the door side wall 32 and the projection line of the door front wall 31 is marked as an origin (0, 0), and an axis which passes through the origin (0, 0) and is perpendicular to the x-axis is marked as a y-axis; the central track line of the positioning groove 6 is marked as a track line S; the central trajectory line S is marked in the coordinate system as a function f (x), which is located in a first quadrant of the xy coordinate system; as one possible way, f (x) is convex upward, and as x increases, f (x) increases and then decreases. I.e., f (x) has only one extreme point.

As a configurable manner, the positioning slot 6 comprises a first slot segment far from the door side wall 32 and a second slot segment close to the door side wall 32; wherein, along the direction from the end far away from the door side wall 32 to the direction close to the door side wall 32, the distance between the first slot section and the door front wall 31 gradually increases, and the distance between the second slot section and the door front wall 31 gradually decreases. The first groove section is smoothly connected with the second groove section through the transition groove section. And the track lines corresponding to the first groove section, the second groove section and the transition groove section are sequentially marked as a first track section, a second track section and a transition track section.

Optionally, the first groove section, the second groove section and the transition groove section are all arc grooves. Namely, the first track section, the second track section and the transition track section are all arc-shaped. As a settable mode, the first track section and the second track section are tangent with the transition track section; i.e. the first groove section and the second groove section are both transition groove sections tangent to form a smooth positioning groove 6.

The positioning groove 6 is defined by the shape of a curved groove, and the trajectory line S is curved. Wherein, the track line S extends from a side far from the door side wall 32 to a side near the door side wall 32, and the distance between the track line S and the door front wall 31 increases and then decreases; in addition, in the present embodiment, the guide groove 7 is linear; that is, the guide groove 7 is formed by a linear groove. The hinge shaft 4 is matched with the positioning groove 6, and the Reuleaux triangle block 5 is matched with the guide groove 7. So that the door 30 can rotate and move a distance to the inside (the direction close to the second body side wall) and the front (the direction far away from the cabinet), thereby preventing the door 30 from interfering with the cabinet 100 when being opened, and also preventing the door 30 from interfering with the cabinet 10.

Because the positioning slot 6 and the hinge shaft 4 and the guide slot 7 and the reuleaux triangle 5 are in relative motion, if the door 30 is opened and the positioning slot 6 and the guide slot 7 are taken as stationary reference objects, the hinge shaft 4 moves in the positioning slot 6 and the reuleaux triangle 5 moves in the guide slot 7. For the convenience of description, the positioning slot 6 and the guiding slot 7, which are fixed relative to each other, are used as references, and the hinge shaft 4 and the reuleaux triangle 5 move relative to the references.

In addition, in the embodiment, the central axis of the hinge shaft 4 is taken as a positioning central axis P, and the central point of the reuleaux triangle 5 is taken as a guiding central point O; the three vertex angles of the Leluo triangular block 5 are sequentially marked as a first vertex angle A, a second vertex angle B and a third vertex angle C; the second vertex angle B is positioned on one side of the first vertex angle C far away from the first body side wall.

As an implementable manner, the reuleaux triangle 5 may be set to an equal-width curve in which three standard vertex angles are sharp vertex angles, and the vertex angles corresponding to the first vertex angle a, the second vertex angle B, and the third vertex angle C are sharp vertex angles.

As another practicable manner, the reuleaux triangle 5 may be provided as a smooth constant-width curve without any sharp vertex. The specific setting mode is as follows: each side of the equilateral triangle is extended to two directions by an equal section; drawing an arc by taking the three vertexes as the circle center, so that the radius of the arc opposite to the three inner angles is equal to the sum of the side length and the length of the extension line; the arc subtended by the opposite vertex angles of the inner angle is equal to the length of the extension line. The constant-width curve composed of such six arcs overcomes the sharp points and is therefore much smoother. The arc angles corresponding to the sharp angle tops of the equilateral triangle are marked as a first vertex angle A, a second vertex angle B and a third vertex angle C; namely, the first vertex angle A, the second vertex angle B and the third vertex angle C are all arc angles. The arc midpoints of the first vertex angle a, the second vertex angle B, and the third vertex angle C having arc-like angles are denoted as vertices a, B, and C corresponding to the respective vertex angles. In this embodiment, the first vertex angle a, the second vertex angle B, or the third vertex angle C is matched with the groove wall of the guide groove 7, and what is defined by the vertex angle a, the second vertex angle B, or the third vertex angle C and the edge near the vertex angle a, the second vertex angle B, or the third vertex angle C (the vertex angle or the circular arc angle corresponding to the first vertex angle a, the second vertex angle B, or the third vertex angle C) is matched with the groove wall of the guide groove 7.

Three sides of the reuleaux triangle 5 are marked as

Wherein the content of the first and second substances,

and the third top angle C, the first top angle A and the second top angle B are arranged oppositely in sequence. Wherein the content of the first and second substances,

is marked as a first central point A _m ，

Is marked as a second central point B _m ，

Is marked as a third central point C _m . The hinge shaft 4 is arranged at one vertex angle of the Lelo triangular block 5; in this embodiment, the hinge axis 4 is arranged at a first apex angle a of the reuleaux triangle 5. Optionally, the positioning central axis P is located on a line segment OA (a connection line between the guiding center O and the vertex point a); namely A, P and O are positioned on the same line segment; in this embodiment, the length of the line segment OP is greater than that of the line segment AP. The line segment OP is referred to as the axial line segment OP.

The Leluo triangular block 5 is fixed on the box body 10, and the first vertex angle A, the third vertex angle C and the second vertex angle B are sequentially far away from the box body 10; namely, the distances between the first vertex angle a, the third vertex angle C and the second vertex angle B and the front end surface of the box body 10 are sequentially increased. That is, the hinge shaft 4 is disposed at the first vertex angle a of the reuleaux triangle 5 closest to the cabinet 10, so as to effectively increase the inward movement angle range of the door 30 during the rotation process, so that the door 30 can keep the inward movement trend within the large angle range during the rotation process, thereby limiting the distance that the side edge K of the door 30 exceeds the first body side wall, and avoiding the interference between the side edge K and the cabinet 100.

In addition, in this embodiment, the third vertex angle C is located on one side of the first vertex angle a and the second vertex angle B close to the first body side wall. The hinge shaft 4 is arranged at the position, closest to the first vertex angle a of the box body 10, of the reuleaux triangle block 5, so that the door body 30 can keep a tendency of moving inwards in the rotating process when the door body 30 rotates relative to the reuleaux triangle block 5. Optionally, the line segment AB is parallel to the first body sidewall (reference plane M), so that the third vertex angle C is the point where the reuleaux triangle 5 is closest to the first body sidewall, thereby effectively increasing the range of the inward movement angle during the rotation of the door 30, and allowing the door 30 to move inward when the door is opened.

As shown in fig. 5 to 19, the movement of the hinge shaft 4 along the positioning slot 6 is equivalent to the movement of the positioning center shaft P along the trajectory line S. In this embodiment, the hinge plate 40 is fixedly connected to the Lelo triangle 5, and one of two opposite sides of the hinge plate 40 is connected to the Lelo triangle 5

Intersecting, the other side of, and including, a Lelo triangle 5

And (4) intersecting. Of luxo triangle 5

Or/and

the movement relative to the guide groove 7 is equivalent to the movement of the reuleaux triangle 5 relative to the guide groove 7 and is also equivalent to the movement of the box 10 relative to the door 30. Similarly, the movement of the axial line segment OP relative to the guide groove 7 is equivalent to the movement of the reuleaux triangle 5 relative to the guide groove 7 and is also equivalent to the movement of the box 10 relative to the door 30.

In the following description, for convenience of explanation, the movement of the positioning central axis P along the trajectory S is selected to represent the movement of the hinge shaft 4 along the positioning slot 6, and the movement of the axis segment OP relative to the guide slot 7 represents the movement of the reuleaux triangle 5 relative to the guide slot 7; that is, the movement of the axial line segment OP with respect to the guide groove 7 represents the movement of the box 10 (hinge plate 30) with respect to the door 30.

As shown in FIGS. 5-19, the trajectory line S includes a first locating endpoint P remote from the door sidewall 32 ₀ And a second positioning end point P near the door side wall 32 _e (ii) a The trajectory S is defined by a first location point P ₀ Extends along a curve to a side close to the door side wall 32 to a second positioning endpoint P _e And the distance of the trajectory line S from the door front wall 31 increases first and then decreases.

In the present embodiment, the trajectory line S is closer to the door rear wall 33 than to the door front wall 31. When a user opens the door body 30, an external force applied to the door body 30 mainly acts on one side of the door body 30 close to the door front wall 31 and far away from the door side wall 32; in this embodiment, the positioning groove 6 is close to the door rear wall 33 relative to the door front wall 31, so that the hinge shaft 4 is positioned at a position close to the door rear wall 33 and the door side wall 32 when the door body 30 is opened, and the smoothness and stability of rotation and movement of the door body 30 can be ensured; and simultaneously, the strength of the door body 30 and the positioning groove 6 is ensured. In this embodiment, the first positioning endpoint P ₀ And the distance from the door front wall 31 is denoted as D ₀ Second positioning endpoint P _e The distance from the door front wall 31 is denoted as D ₁ Second positioning end point P _e The distance from the rear door wall 33 is denoted by D ₂ . Wherein D is ₀ ≥D ₁ ＞D ₂ (ii) a I.e. settable, D ₂ ：D ₁ E [1/2, 1). The arrangement can balance the force action, match the use habits of users and enhance the opening stability of the door body 30. Optionally, in the projection of the top wall of the box 10, the middle plane between the door front wall 31 and the door rear wall 33 is denoted as a middle plane, and the distance between the middle plane and the door front wall 31 is equal to the distance between the middle plane and the door rear wall 33; the positioning slot 6 is located between the median plane and the door rear wall 33.

In this embodiment, D is not less than 13mm ₂ ≦ 17mm, in the present example, set D ₂ ＝15mm，D ₁ =30mm, the thickness of the door body 30 is between 44mm and 53mm, so that the door is formedThe distance that the side edge K of the corner of the body 30 always exceeds the side surface (the reference plane M) of the box body 10 is short in the process of opening the door, specifically, in the embodiment, the maximum distance that the side edge K exceeds the reference plane M of the box body 10 is less than 3mm in the process of opening the door body 30, and the interference between the door body 30 and the cabinet 100 is effectively avoided.

In this embodiment, the positioning groove 6 is curved and protrudes toward the door rear wall 33; the center line of the guide groove 7 along the extending direction thereof is parallel to the door side wall 32, so that when the hinge shaft 4 drives the reuleaux triangle 5 to move relative to the positioning groove, a significant displacement is generated in the inner and outer directions (transverse directions), and the door body 30 moves inwards. Specifically, in the present embodiment, the door front wall 31 is perpendicular to the door side wall 32; the first guide strip 8 and the second guide strip 9 are perpendicular to the door front wall 31, i.e. the center line of the extending direction of the guide groove 7 is perpendicular to the door front wall 31. I.e. the trajectory S is defined by the first positioning end point P ₀ Extends along a curve convex toward the door rear wall 33 to a second positioning end point P _e . The arrangement effectively utilizes the thickness of the door body 30, so that the Reullo triangular block 5 can smoothly rotate and slide relative to the guide groove 7, and the door body 30 can move inwards and forwards in the rotating and opening process.

The positioning grooves 6 effectively limit the movement of the hinge shaft 4, and the guide grooves 7 effectively limit the movement of the reuleaux triangle blocks 5, so that the reuleaux triangle blocks 5 are matched with the hinge shaft 4 to move in the guide grooves 7, the door body 30 moves inwards and forwards for a certain distance in the opening process of the door body 30, and the stability and the fluency of the rotation and the opening of the door body 30 are ensured.

As shown in fig. 5, in some embodiments of the present application, when the door body 30 is in the closed state, the positioning center axis P is located at the first positioning end point P of the track line S ₀ The third vertex angle C of the Reuluo triangular block 5 is matched with the second guide strip 9;

cooperating with the first guide strip 8. As one possible way, when the door 30 is in the closed state,

to (1)A center point A _m Cooperating with the first guide strip 8.

In this embodiment, the maximum angle G at which the refrigerator is opened _max The description is given by way of example at > 90 deg.. The door 30 is opened from the closed state to the maximum angle G _max In the process, when the door 30 is rotated to a specific angle, the position of the hinge shaft 4 relative to the positioning slot 6 and the position of the reuleaux triangle 5 relative to the guide slot 7 are as follows:

wherein the content of the first and second substances,

indicating the opening angle of the door 30, the opening angle when the door 30 is in the closed state

As shown in the figure 5 of the drawings,

when the door body 30 is in a closed state; the positioning center axis P is located at a first positioning end point P of the track line S far away from the door side wall 32 ₀ Of Lelo triangle 5

Is matched with the first guide strip 8; the third apex angle C of the reuleaux triangle 5 cooperates with the second guide strip 9. In connection with the description of figure 13,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned at A in the guide groove 7 ₀ 、B ₀ 、C ₀ 、O ₀ To (3).

As shown in figures 6-8 of the drawings,

at the time, the door 30 is rotated from the closed state to the open state G ₃ The process of (excluding endpoint values); of the above-mentioned Lelo triangle 5

Is always matched with the first guide strip 8; the third apex angle C of the reuleaux triangle 5 always cooperates with the second guide strip 9.

Above, the opening angle of the door 30

When the door is opened, the matching relation state of the reuleaux triangle block 5 and the guide groove 7 in the opening angle interval is the same, and the matching relation state is always the same

Cooperating with the first guide strip 8 and the third corner C cooperating with the second guide strip 9. The difference lies in that: the opening angle is different from the opening angle,

the upper point of engagement with the guide groove 7 is different. Thus, the opening angle

When the door body 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the reuleaux triangle block 5 and the guide groove 7, and the hinge shaft 4 and the positioning groove 6; in particular, as shown in figure 6,

a state diagram of time; as shown in figure 7 of the drawings,

a state diagram of time; wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ；

Or G ₂ May represent the fit within the interval.

As shown in fig. 6, door 30 is opened G ₁ When the positioning central axis P is located at the first displacement point P of the track line S ₁ First displacement point P ₁ At a first location end point P ₀ The side adjacent the door side wall 32; with reference to figure 14 of the drawings,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A ₁ 、B ₁ 、C ₁ 、O ₁ To (3).

Door 30 is opened G as shown in FIG. 7 ₂ When the positioning central axis P is located at the second displacement point P of the track line S ₂ Second displacement point P ₂ At a first displacement point P ₁ The side adjacent the door side wall 32; with reference to figure 15 of the drawings,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned at A in the guide groove 7 ₂ 、B ₂ 、C ₂ 、O ₂ To (3).

As shown in figure 8 of the drawings,

at the time, the door 30 is opened to G ₃ (ii) a The positioning central axis P is positioned at a third displacement point P of the track line S ₃ Third displacement point P ₃ At a second displacement point P ₂ The side adjacent the door side wall 32; a second vertex angle B of the Reuluo triangular block 5 is matched with the first guide strip 8; the third apex angle C of the reuleaux triangle 5 cooperates with the second guide strip 9. In connection with the description of figure 16,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A ₃ 、B ₃ 、C ₃ 、O ₃ To (3). With reference to FIG. 20, wherein, C ₀ 、C ₁ 、C ₂ 、C ₃ Are located on the second guide strip 9 and are arranged in turn from the door rear wall 33 to the door front wall 31. In this example, as shown in FIG. 8, G ₃ ∈[33°，37°]Any one of them; that is, when the door 30 is opened to about 35 °, the second apex angle B and the third apex angle B of the reuleaux triangle 5 existThe vertex angle C is matched with two opposite groove walls (the first guide strip 8 and the second guide strip 9) of the guide groove 7 at the same time.

As shown in figures 9-11 of the drawings,

the door 30 is composed of ₃ Is rotated to open to G ₅ (iii) process (excluding end point values); in the opening process, a second vertex angle B of the Leluo triangular block 5 is always matched with the first guide strip 8; of luxo triangle 5

Always cooperating with the second guide strip 9.

Above, the opening angle of the door 30

When the guide bar is opened, the matching relation between the Leluo triangular block 5 and the guide groove 7 in the opening angle interval is the same, and the second vertex angle B is always matched with the first guide bar 8; of luxo triangle 5

Always cooperating with the second guide strip 9. The difference lies in that: the opening angle is different from the opening angle,

the upper point of engagement with the guide groove 7 is different. Thus, opening angle

When the door body 30 is opened to the corresponding interval, any one of the opening angles can represent the relative positions of the reuleaux triangle block 5 and the guide groove 7, and the hinge shaft 4 and the positioning groove 6; in particular, as shown in figure 9,

a state diagram of time; as shown in figure 10 of the drawings,

a state diagram of time; wherein，G ₃ ＜G ₄ ＜G _e ＜G ₅ ；

Or G _e May represent the fit within the interval.

As shown in fig. 9, the door 30 is opened G ₄ While the positioning central axis P is located at the fourth displacement point P of the track line S ₄ Fourth displacement point P ₄ At a third displacement point P ₃ And a second positioning end point P _e In the middle of; in connection with the description of figure 17,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A ₄ 、B ₄ 、C ₄ 、O ₄ To (3). As one practical way, door 30 is opened G ₄ Of hour, le lo triangular blocks 5

Third center point C of _m Cooperating with the second guide strip 9. In this example, G ₄ ∈[58°，62°]Any one of them; that is, when the door 30 is opened to the vicinity of 60 °, the third center point C of the reuleaux triangle 5 exists _m And the second vertex angle B is matched with the groove walls (the first guide strip 8 and the second guide strip 9) of the guide groove 7 at the same time.

As shown in fig. 10, the door 30 is opened G _e When the positioning central axis P is located at the second positioning endpoint P of the track line S _e (ii) a I.e. the hinge axis 4 is located at the end of the positioning slot 6 near the door side wall 32. In connection with the description of figure 18 of the drawings,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A _e 、B _e 、C _e 、O _e To (3). In this example, G _e ∈[81°，85°]Any one of them; that is, when the door 30 is opened to a position near 83 °, the positioning center axis P moves to the second positionPositioning end point P _e 。

As shown in the figure 11 of the drawings,

at the same time, the door 30 is rotated to open to G ₅ The positioning center axis P is located at a fifth displacement point P of the trajectory line S ₅ Fifth displacement point P ₅ At the second positioning end point P _e The side remote from the door jamb 32. At this time, a second vertex angle B of the reuleaux triangle 5 is matched with the first guide strip 8; the first apex angle a of the reuleaux triangle 5 cooperates with the second guide strip 9. In connection with the description of figure 19,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A ₅ 、B ₅ 、C ₅ 、O ₅ To (3). With reference to FIG. 20, wherein B ₃ 、B ₄ 、B _e 、B ₅ Are located on the first guide strip 8 and are arranged in sequence from the front door wall 31 to the rear door wall 33. In this example, G ₅ =90 °; specifically, G ₅ ∈[88°，92°]Any one of them; that is, when the door 30 is opened to the vicinity of 90 °, the first vertex angle a and the second vertex angle B of the reuleaux triangle 5 are simultaneously engaged with the groove walls (the first guide strip 8 and the second guide strip 9) of the guide groove 7.

As shown in figures 11-12 of the drawings,

while the door body 30 is composed of G ₅ Is rotated to open to G _max Including opening G _max ) Of the above-mentioned Lelo triangle 5 during the opening process

Is always matched with the first guide strip 8; the first apex angle a of the reuleaux triangle 5 always co-operates with the second guide strip 9.

As described above, as shown in fig. 11 to 12, the opening angle of the door 30 is set

When the door is opened, the matching relation between the Reulux triangle block 5 and the guide groove 7 in the opening angle interval is the same, namely the Reulux triangle block 5 and the guide groove 7 are always matched

Is always matched with the first guide strip 8; the first apex angle a of the reuleaux triangle 5 always cooperates with the second guide strip 9. The differences are as follows: the opening angle is different from the opening angle,

the upper point of engagement with the guide groove 7 differs. Thus, the opening angle satisfies (G) ₅ ，G _max ]In the meantime, any one of the opening angles may represent that the door 30 is opened to the corresponding section (G) ₅ ，G _max ]The relative positions of the Lelo triangle block 5 and the guide groove 7 as well as the hinge shaft 4 and the positioning groove 6; in particular, as shown in figure 12,

is shown in the figure (a) of states,

may represent a fit within the interval.

As shown in fig. 12, the door 30 is opened G _max Hour (G) _max > 90 deg. and the positioning central axis P is at the sixth displacement point P of the track line S ₆ Sixth displacement point P ₆ At a fifth displacement point P ₅ Far from the second positioning end point P _e One side. In conjunction with the description of figure 20,

when the first vertex angle A, the second vertex angle B, the third vertex angle C and the guide central point O of the Leluo triangular block 5 are sequentially positioned in the guide groove 7A ₆ 、B ₆ 、C ₆ 、O ₆ To (3). With reference to FIG. 20, wherein A ₅ 、A ₆ Are located on the second guide strip 9 and are arranged in sequence from the rear door wall 33 to the front door wall 31. Can be provided with, G _max ∈[105°，115°]. As an implementable manner, the door body30 opening G _max Of hour, le lo triangular blocks 5

Third engagement point B of _x Cooperating with the first guide strip 8.

Wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＜G _e ＜G ₅ ＜G _max (ii) a First positioning endpoint P ₀ A first displacement point P ₁ A second displacement point P ₂ A third displacement point P ₃ The fourth shift point P ₄ Sixth displacement point P ₆ Fifth displacement point P ₅ A second positioning terminal P _e In turn distributed along the trajectory S. In this embodiment, the opening angles of the door 30 are sequentially recorded as a first angle G ₁ A second angle G ₂ Third angle G ₃ Fourth angle G ₄ End point angle G _e A fifth angle G ₅ Maximum angle G _max 。

In the present embodiment of the present invention,

at the fifth displacement point P ₅ At the fourth shift point P ₄ And a second positioning end point P _e And a sixth displacement point P ₆ At the fourth shift point P ₄ And the fifth displacement point P ₅ In the meantime. It is to be noted that the setting is

Is different in size, there is a sixth displacement point P ₆ At the fourth shift point P ₄ Far away from the second positioning endpoint P _e One-sided case. At the setting

At a sixth displacement point P ₆ At the fourth shift point P ₄ And the fifth displacement point P ₅ In the meantime.

The door 30 is opened from the closed state to the maximum angle G _max In the process, the hinge shaft 4 moves relative to the positioning groove 6, and the Lelo triangular block 5 moves relative to the guide groove 7;

as can be seen from the above, from the angle of the fit relation between the two opposite groove walls of the guide groove 7 and the Reuleaux triangle 5,

and a second vertex angle B and a third vertex angle C of the Leluo triangular block 5 are matched with two opposite groove walls of the guide groove 7.

And the second vertex angle B and the first vertex angle A of the Leluo triangular block 5 are matched with two opposite groove walls of the guide groove 7. That is to say that the temperature of the molten steel,

and

the door body is opened from a closed state to G _max There are three stages. The three stages are described below in terms of the fit of the opposing groove walls of the guide groove 7 with the reuleaux triangle 5:

in the first stage, as shown in fig. 21, the door 30 is rotated from the closed state to the open state G ₃ The process of (2).

In the first stage, the door 30 passes through G from 0 DEG in sequence ₁ 、G ₂ Open to G ₃ . In the process, the positioning center axis P is formed from a first positioning end point P ₀ Moving along the trajectory S in a direction approaching the door jamb 32; specifically, the positioning center axis P is defined by a first positioning end point P ₀ Passing successively along the trajectory S through a first displacement point P ₁ A second displacement point P ₂ Move to a third displacement point P ₃ . When the opening angle of the door 30 is less than G ₃ Before one

Of luxo triangle 5

And the third vertex angle C of the Reuluo triangular block 5 is always matched with the second guide strip 9. At the opening angle G of the door 30 ₃ When the first guide strip 8 is matched with the second vertex angle B of the Lelo triangular block 5; the third apex angle C of the reuleaux triangle 5 cooperates with the second guide strip 9.

In the opening process of the first stage, the door 30 is opened from 0 ° to G with the positioning groove 6 and the guide groove 7 as references ₃ When the axis segment OP is from O ₀ P ₀ Rotate clockwise and move outward and backward to O ₁ P ₁ 、O ₂ P ₂ 、O ₃ P ₃ Is (O) ₀ P ₀ →O ₁ P ₁ →O ₂ P ₂ →O ₃ P ₃ ). Since the positioning groove 6 and the guide groove 7 are disposed on the door 30, the axial line segment OP represents the movement of the reuleaux triangle 5 disposed on the box 10; then it follows: the door 30 is opened from the closed state to G by taking the door 30 as a reference object ₃ Throughout the process, the housing 10 (i.e., the reuleaux triangle 5) keeps rotating clockwise and moves outward and rearward relative to the door 30. According to the relative motion, the door 30 is opened from the closed state to the position G by using the box 10 as a reference object (i.e. the Lelo triangle 5 as a reference object) ₃ Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise with respect to the cabinet 10 and moves forward inward. That is, the door 30 moves inward and forward for a certain distance while being opened, so as to prevent the door 30 from interfering with the cabinet 100 on the one hand and prevent the door 30 from interfering with the cabinet 10 on the other hand.

In the second stage, as shown in FIG. 22, the door 30 is marked by G ₃ Is rotated to open to G ₅ In the course of (2).

The door body 30 is composed of ₃ Sequentially passes through G ₄ 、G _e Open to G ₅ . In the process, the central axis P is positioned from the third displacement point P ₃ First moving along the trajectory S in a direction approaching the door side wall 32 and then moving in a direction away from the door side wall 32 by retracting in the opposite direction; specifically, the central axis P is located at a third displacement point P ₃ Adjacent to the door jamb along the trajectory SThe direction passes through the fourth displacement point P ₄ Move to the second positioning endpoint P _e And then moves back in a direction away from the door side wall 32 to a fifth displacement point P ₅ . At the door body 30G ₃ Is rotated to open to G ₅ In the process of (1)

The second vertex angle B of the triangular lux block 5 is always matched with the first guide strip 8, and the second vertex angle B of the triangular lux block 5

Always cooperating with the second guide strip 9. At the opening angle G of the door 30 ₅ When the guide bar is used, a second vertex angle B of the Leluo triangular block 5 is matched with the first guide bar 8; the first apex angle a of the reuleaux triangle 5 cooperates with the second guide strip 9.

In the second stage of opening, the positioning groove 6 and the guide groove 7 are used as reference objects, and the door 30 is G ₃ Open to G ₅ When the axis segment OP is from O ₀ P ₀ Keeps rotating clockwise and moves outwards and forwards to O ₃ P ₃ 、O ₄ P ₄ 、O _e P _e (O ₃ P ₃ →O ₄ P ₄ →O _e P _e ) Then move inward and backward to O ₅ P ₅ Is (O) _e P _e →O ₅ P ₅ ). Since the positioning groove 6 and the guide groove 7 are disposed on the door 30, the axial line segment OP represents the movement of the reuleaux triangle 5 disposed on the box 10; then it follows: the door 30 is G, G ₃ Is opened to G ₅ Throughout the process, the box 10 (i.e., the reuleaux triangle 5) keeps rotating clockwise relative to the door 30 and moves forward first outward and then backward. According to the relative motion, the door 30 is G with the box 10 as a reference (i.e. with the Lelo triangle 5 as a reference) ₃ Is opened to G ₅ In the whole process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the cabinet 10 and moves inward and backward and then outward and forward for a certain distance.

The third stage, as shown in figure 23,the door body 30 is composed of ₅ Is rotated to open to G _max The process of (1).

The door body 30 is composed of ₅ Open to G _max . In this process, the positioning center axis P is displaced from the fifth displacement point P ₅ Moving along the trajectory S away from the door sidewall 32 to a sixth displacement point P ₆ (ii) a At the door body 30G ₅ Is rotated to open to G _max In the process of (1)

The first vertex angle A of the reuleaux triangle 5 always cooperates with the first guide strip 8, the reuleaux triangle 5

Always cooperating with the second guide strip 9.

In the third stage of opening, the positioning groove 6 and the guide groove 7 are used as reference objects, and the door 30 is composed of G ₅ Is opened to G _max When the axis segment OP is from O ₅ P ₅ Rotates clockwise and moves back inward to O ₆ P ₆ Is (O) ₅ P ₅ →O ₆ P ₆ ). Since the positioning groove 6 and the guide groove 7 are disposed on the door 30, the axial line segment OP represents the movement of the reuleaux triangle 5 disposed on the box 10; then it follows: the door 30 is G, G ₅ Is opened to G _max Throughout the process, the housing 10 (i.e., the reuleaux triangle 5) remains rotated clockwise and moves inward and rearward relative to the door 30. According to the relative motion, the door 30 is G with the box 10 as a reference (i.e. with the Lelo triangle 5 as a reference) ₅ Open to G _max The door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise with respect to the cabinet 10 and moves outward and forward by a certain distance. With reference to the movement of the first to third stages, the behavior of the door 30 in the left-right direction (lateral direction) perpendicular to the reference plane with respect to the housing 10 will be described below.

Combining the motion conditions of the first stage and the second stage, the following can be obtained: the door 30 is opened from the closed state to G _e In the process, the axis segment OP keeps rotating clockwise andthe tendency to move outward is given by ₀ P ₀ Is sequentially moved to O ₁ P ₁ 、O ₂ P ₂ 、O ₃ P ₃ 、O ₄ P ₄ 、O _e P _e Is (O) ₀ P ₀ →O ₁ P ₁ →O ₂ P ₂ →O ₃ P ₃ →O ₄ P ₄ →O _e P _e ) (ii) a That is, the door 30 is opened from the closed state to G with the door 30 as a reference _e The reuleaux triangle 5 always keeps rotating clockwise and moving outward relative to the door 30 in the whole process. According to the relative motion, the door 30 is opened from the closed state to the position G by using the box 10 as a reference object (i.e. the Lelo triangle 5 as a reference object) _e Throughout the process, the door 30 rotates counterclockwise relative to the chest 10 and moves inward. I.e. the door 30 is rotated from the closed state to the open state G _e The door body 30 rotates counterclockwise with respect to the chest 10 and moves inward by a first distance. Wherein, the first distance is from 0 degree to G degree of the door body 30 _e The distance the door body 30 moves inward.

And the door body 30 is composed of _e Is rotated to open to G _max In the process (2), the axis segment OP keeps rotating clockwise and moves inwards _e P _e Is sequentially moved to O ₅ P ₅ 、O ₆ P ₆ Is (by P) _e O _e →O ₅ P ₅ →O ₆ P ₆ ) (ii) a That is, the door 30 is set to G _e Is rotated to open to G _max The lelo cam 5 always rotates clockwise and moves inward relative to the door 30 in the process. According to the relative motion, the door 30 is G with the box 10 as a reference (i.e. with the Lelo triangle 5 as a reference) _e Is rotated to open to G _max The door body 30 rotates counterclockwise with respect to the chest 10 and moves outward. I.e. G on the door body 30 _e Is rotated to open to G _max The door 30 rotates counterclockwise relative to the chest 10 and moves outward by a second distance. Wherein the second distance is G from the door body 30 _e Is rotated to open to G _max The distance the door body 30 moves outward.

In summary, referring to fig. 13-23, the axis line segment OP (the line connecting the positioning center axis P and the center O of the reuleaux triangle 5) is first rotated clockwise G with the positioning slot 6 and the guiding slot 7 as the reference object _e And moved outwardly a first distance (by P) ₀ O ₀ →P ₁ O ₁ →P ₂ O ₂ →P ₃ O ₃ →P ₄ O ₄ →P _e O _e ) And then clockwise from G _e Rotate to G _max > 90 deg. and is moved inward a second distance (from P) _e O _e →P ₅ O ₅ →P ₆ O ₆ ) (ii) a Wherein the first distance > the second distance, i.e. with respect to the initial state (P) ₀ O ₀ ) Door 30 is opened to G _max When the angle is greater than 90 °, the axis segment OP rotates and moves outward by a certain distance (difference between the first distance and the second distance).

According to the relativity of movement, the positioning slot 6 and the guide slot 7 are integrally rotated in the counterclockwise direction G by taking the hinge shaft 4 and the Lelo triangular block 5 as reference objects _e And moves inward a first distance and then counterclockwise from G _e Rotate to G _max Greater than 90 ° and moved outwardly a second distance; since the first distance > the second distance; the door 30 is opened to G with respect to the initial state (the door 30 closed state) _max In the whole process of more than 90 degrees, the positioning groove 6 and the guide groove 7 always move inwards for a certain distance. That is, the door 30 (positioning groove 6 and guide groove 7) is opened to G with respect to the case 10 (hinge shaft 4 and luxo triangle 5) _max In the whole process of more than 90 degrees, the door 30 always moves inward for a certain distance relative to the initial state (closed state) so as to effectively avoid the door 30 from touching the cabinet 100 in the opening process.

With reference to the movement of the first to third stages, the following describes the behavior of the door 30 relative to the box 10 in the front-back direction (longitudinal direction) perpendicular to the access opening of the box 10.

Referring to fig. 21, referring to the positioning grooves 6 and the guide grooves 7, as shown in fig. 24 and 25, an axis line segment OP (a line connecting the positioning center axis P and the center O of the reuleaux triangle 5) (the positioning center axis P and the center of the reuleaux triangle 5) is definedLine connecting O) first rotates G in the clockwise direction ₃ And moved backward by a first amount of displacement (shown in fig. 21 by P ₀ O ₀ →P ₁ O ₁ →P ₂ O ₂ →P ₃ O ₃ ) And then clockwise from G ₃ Rotate to G _e And is moved forward by a second amount of displacement (shown in fig. 24 as P ₃ O ₃ →P _e O _e ) Then in a clockwise direction from G) _e Rotate to G _max > 90 deg. and is moved backward by a third displacement (shown in fig. 25 by P _e O _e →P ₅ O ₅ →P ₆ O ₆ ) (ii) a Wherein the first displacement amount is larger than the second displacement amount; i.e. with respect to the initial state (P) ₀ O ₀ ) Door 30 is opened to G _max When the angle is greater than 90 °, the axis line segment OP rotates and moves backward by a certain distance (the first displacement amount + the third displacement amount — the second displacement amount).

According to the relativity of movement, the hinge shaft 4 and the Lelo triangular block 5 are taken as references, the positioning groove 6 and the guide groove 7 integrally rotate in the counterclockwise direction G ₃ And moves forward by a first displacement amount and then counterclockwise by G ₃ Rotate to G _e And is moved backward by a second amount of displacement and then in a counterclockwise direction by G _e Rotate to G _max > 90 ° and moved forward by a third displacement; since the first displacement amount > the second displacement amount; the door 30 is opened to G with respect to the initial state (the closed state of the door 30) _max In the whole process of more than 90 degrees, the positioning groove 6 and the guide groove 7 always move forwards for a certain distance. That is, the door 30 (positioning groove 6 and guide groove 7) is opened to G with respect to the case 10 (hinge shaft 4 and luxo triangle 5) _max In the whole process of more than 90 degrees, the door body 30 always moves forward for a certain distance relative to the initial state (closing state) so as to effectively avoid the interference of the door body 30 with the box body 10 in the opening process.

In summary, in combination with the movement of the door 30 relative to the cabinet 10 in the front-back direction (longitudinal direction) and the left-right direction (lateral direction), the following results are obtained:

the door 30 is opened from the closed state to G with the cabinet 10 as a reference ₃ In the whole process, the door 30 is reversely timed relative to the box 10The needle rotates open and moves forward inward.

The door body 30 is composed of ₃ Is rotated to open to G _e The door 30 (i.e., the positioning groove 6 and the guide groove 7) is rotated counterclockwise with respect to the cabinet 10 to be opened and moved inward and rearward.

The door body 30 is composed of _e Is rotated to open to G _max In the process of > 90 °, the door 30 (i.e., the positioning groove 6 and the guide groove 7) is rotated counterclockwise with respect to the cabinet 10 to be opened and moved inward and forward.

In combination with the above, the movement of the hinge shaft 4 relative to the positioning groove 6 during the opening of the door 30 will be described in the following description of the movement of the door 30 relative to the cabinet 10 in the front-back direction (longitudinal direction) perpendicular to the access opening of the cabinet 10.

In the present embodiment of the present invention,

at this time, the hinge shaft 4 moves to the position (third displacement point P) where the positioning groove 6 is the maximum distance from the door front wall 31 ₃ ). That is, in the present embodiment, the hinge axis 4 moves to the third displacement point P ₃ When the positioning groove 6 is away from the door front wall 31 to the maximum, the second vertex angle B and the third vertex angle C are matched with the two opposite groove walls of the guide groove 7 at the same time. It should be noted that, in the specific setting, the displacement point at which the distance between the positioning groove 6 and the door front wall 31 is the largest, and the displacement points at which the second vertex angle B and the third vertex angle C are simultaneously matched with the two opposite groove walls of the guide groove 7 are not limited to the above setting, and the above two displacement points may be two different displacement points on the trajectory line S.

In addition, the first and second substrates are,

when the position center axis P is located at the second positioning end point P of the track line S _e 。

In combination with the movement of the first stage, as shown in fig. 21, the door 30 is rotated from the closed state to open position G ₃ In the process, the positioning center axis P is positioned from the first positioning end point P by taking the positioning slot 6 as a reference object ₀ Moves along the trajectory S in a direction approaching the door side wall 32 to a third displacement point P ₃ (ii) a In this process, the center axis P is positionedThe distance from the door front wall 31 gradually increases. That is, the door 30 is rotated from the closed state to the open state G ₃ In the process, the hinge shaft 4 moves relative to the positioning groove 6 in a direction to approach the door rear wall 33 and the door side wall 32.

In combination with the second stage movement, as shown in fig. 24, the door 30 is composed of a door G ₃ Is rotated to open to G _e In the process, the positioning center axis P is positioned from a third displacement point P by taking the positioning groove 6 and the guide groove 7 as reference objects ₃ Moves along the track line S in a direction approaching the door side wall 32 to a second positioning end point P _e (ii) a In this process, the distance between the positioning center axis P and the door front wall 31 gradually decreases. Namely, the door 30 is composed of G ₃ Is rotated to open to G _e In the process, the hinge shaft 4 moves relative to the positioning groove 6 in a direction to approach the door front wall 31 and the door side wall 32.

As can be seen from the above, the door 30 is rotated from the closed state to the open state G _e The hinge shaft 4 moves relative to the positioning slot 6 from the end of the positioning slot 6 far away from the door side wall 32 to the end of the positioning slot 6 close to the door side wall 32, and the distance between the hinge shaft 4 and the door side wall 32 is gradually reduced.

Combining the motion of the second stage and the third stage, as shown in fig. 25, the door 30 is represented by G _e Is rotated to open to G _max In the process of more than 90 degrees, the positioning groove 6 and the guide groove 7 are used as reference objects, and the positioning central axis P is positioned from a second positioning end point P _e The reverse pullback is moved along the track line S away from the door sidewall 32 to a sixth displacement point P ₆ (ii) a In this process, the distance between the positioning center axis P and the door front wall 31 gradually increases. That is, the door 30 is composed of G _e Is rotated to open to G _max In the course of 90 °, the hinge shaft 4 moves relative to the positioning groove 6 in a direction close to the door rear wall 33 and away from the door side wall 32.

In summary, the door 30 is opened from the closed state to G _max In the process of more than 90 °, the hinge shaft 4 (positioning central shaft P) moves along the trace S to a second positioning end point P in a direction approaching the door side wall 32 _e And then retreats back along the rail trace S in a direction away from the door side wall 32 to a sixth displacement point P ₆ . In addition, the hinge axis 4 (positioning center axis P) extends from a first positioning point P along the trajectory S ₀ Move to the second positioning endpoint P _e The distance between the hinge axis 4 and the door front wall 31 increases and then decreases.

As a practical manner, when the door 30 is rotated to open to 90 °, the door front wall 31 of the door 30 is parallel to the first side wall of the cabinet 10; wherein, the distance between the door front wall 31 of the door body 30 and the first body side wall of the box body 10 is recorded as D, D belongs to [0,3], and the unit is: mm. It is noted that the door front wall 31 is now located outside or inside the first body side wall, or the door front wall 31 is coplanar with the first body side wall.

As another practical manner, referring to fig. 26, the door 30 is opened from the closed state to G ₁ In the process of (1), the inward movement distance of the door 30 rotating by a unit angle is recorded as s ₁ (ii) a I.e. the door 30 is opened from the closed state to G ₁ In the process, the transverse displacement generated by the rotation of the door body 30 by a unit angle is s ₁ ；

The door body 30 is composed of ₁ Open to G ₂ In the process, the inward movement distance per unit angle of rotation of the door 30 is recorded as s ₂ (ii) a I.e. the door body 30 is composed of ₁ Open to G ₂ In the process (2), the transverse displacement generated by the rotation of the door body 30 by a unit angle is s ₂ (ii) a Wherein s is ₁ ＜s ₂ . So that the door 30 is opened at the initial stage (0-G) from the closed state ₁ ) The rotational movement is mainly used to rapidly separate the door 10 from the cabinet 30 when the door 10 is opened.

Can be provided with G ₁ Set to any one of values from 5 to 8. G ₂ Set to any one of values from 8 to 18. Optionally, the door 30 is opened from the closed state to G ₁ When the door 30 is moved inward, the lateral displacement is 1mm, from G ₁ Open to at G ₂ The door 30 is moved inward with a lateral displacement of 1.8mm.

As shown in fig. 27, door 30 (positioning groove 6 and guide groove 7) is rotated and opened with respect to casing 10 by using casing 10 (hinge shaft 4 and reuleaux triangle 5) as a reference, and corresponding to door 30 being opened to 0 °, G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _e 、G ₅ 、G _max The edge K being opposite to the edge of Luoler sanThe corner blocks 5 are sequentially positioned at K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K _e 、K ₅ 、K ₆ At least one of (1) and (b); i.e. the door 30 is rotated to open to G _max In the process, the moving track of the lateral edge K is K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K _e 、K ₅ 、K ₆ Along with the curve it is on. It can be derived that: in the whole process that the door body 30 rotates and moves forwards inwards, then rotates and moves backwards outwards, and then rotates and moves forwards inwards, the side edge K moves outwards for a certain distance firstly and then keeps the trend of moving inwards; and rotates to G on the door body 30 ₃ To G ₄ To a maximum position. In this example, G ₃ ∈[33°，37°]，G ₄ ∈[58°，62°]If any value of the angle is within 33-62 degrees, the side edge K moves outward to the maximum point when the door 30 rotates to open; compared with the opening mode of the door body 30 rotating around the fixed shaft, the lateral edge K is always kept moving outwards when the door body 30 is opened to 90 degrees; the arrangement in this embodiment effectively reduces the outward movement range of the side edge K, and limits the outward movement range to the range of the distance between the reference plane M (the first body side wall) and the cabinet 100, thereby preventing the door 30 from colliding with the cabinet 100 during the opening process.

In the embodiment of the present application, the opening angle of the door 30 is opened to

At this time, the door body 30 keeps moving inward while rotating. Namely, the relative positions of the Lelo triangle 5 and the guiding slot 7, the hinge shaft 4 and the positioning slot 6 are adopted in the present embodiment

In the initial state, the door 30 rotates and moves inward in the initial opening stage. Therefore, the first vertex angle a, the second vertex angle B and the third vertex angle C of the reuleaux triangle block 5 are not limited to be located at a in the application when the door body 30 is closed ₀ 、B ₀ 、C ₀ Can be arranged atWhich are located in sequence above A ₁ 、B ₁ 、C ₁ Where, they can also be arranged so as to be located in sequence at A ₂ 、B ₂ 、C ₂ Can be arranged so that they are in turn located at A ₃ 、B ₃ 、C ₃ Position 8230 \ 8230;. That is, in the present embodiment, the door 30 is opened to the opening angle

The positions of the three vertex angles of the hour-reuleaux triangle 5 with respect to the door 30 may be set at the positions of the three vertex angles of the hour-reuleaux triangle 5 with respect to the door 30 in the initial state when the door 30 is closed.

In the embodiment of the present application, the door 30 is opened from the closed state to the maximum angle G _max In the whole process of more than 90 degrees, the position of the hinge shaft 4 in the positioning groove 6 and the position of the Lelo triangular block 5 in the guide groove 7 are changed all the time, the condition of sudden change of stress does not exist, and the movement is smoother.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. Refrigerator, characterized in that it comprises:

the hinge is arranged on the box body and is close to the first integral side wall; the hinge is provided with a Lelo triangle block and a hinge shaft; the hinge shaft is positioned at the vertex angle of the Leluo triangular block close to the box body;

the positioning groove is curved and is positioned on the groove bottom of the guide groove; the positioning groove extends from one end far away from the door side wall to the direction close to the door side wall; the hinge shaft is matched with the positioning groove; said detent is proximate said door rear wall relative to said door front wall;

when the door body is opened from a closed state, the Reuluo triangular block is always matched with two opposite groove walls of the guide groove and moves relative to the guide groove; the hinge shaft moves relative to the positioning groove so that the door body can move inwards and forwards for a certain distance while rotating.

2. The refrigerator according to claim 1, wherein: the central track line of the positioning groove is marked as a track line S; the minimum distance between the trajectory S and the front wall of the door is recorded as D ₁ The maximum distance between the trajectory line S and the rear wall of the door is recorded as D ₂ (ii) a Wherein D is ₂ ：D ₁ ∈[1/2，1)。

3. The refrigerator according to claim 1, wherein: the center line of the guide groove in the extending direction thereof is parallel to the door side wall.

4. The refrigerator according to claim 1 or 2, characterized in that: the guide way includes first guide strip and the second guide strip of parallel arrangement, first guide strip is located the second guide strip is kept away from one side of door lateral wall, just the constant head tank is located between first guide way and the second guide strip, and follow by first guide strip leads the direction of second guide strip extends.

5. The refrigerator according to claim 1 or 2, characterized in that: the distance between one end of the positioning groove, which is far away from the door side wall, and the door front wall is recorded as D ₀ The positioning groove is close to one side wall of the doorThe distance between the end and the front wall of the door is marked as D ₁ Wherein D is ₀ ≥D ₁ 。

6. The refrigerator according to claim 1, 2 or 3, wherein: the vertex angle of the Reuluo triangular block close to the box body is recorded as a first vertex angle A, and the hinge shaft is positioned at the first vertex angle A;

the central axis of the hinge shaft is marked as a positioning central axis P, and the center of the Lelo triangle block is marked as O; wherein the positioning central axis P is located on the line segment AO.

7. The refrigerator according to claim 6, wherein: the length of the line segment AP is smaller than the length of the line segment PO.

8. The refrigerator according to claim 6, wherein: the Reuluo triangular block comprises a second vertex angle B and a third vertex angle C; the first vertex angle A, the third vertex angle C and the second vertex angle B are sequentially far away from the box body.

9. The refrigerator according to claim 8, wherein: and the third vertex angle C is positioned at one side of the first vertex angle A and the second vertex angle B close to the first body side wall.

10. The refrigerator according to claim 9, wherein: line segment AB is parallel to the first body sidewall.