CN115111839A

CN115111839A - Refrigerator with a door

Info

Publication number: CN115111839A
Application number: CN202210191963.9A
Authority: CN
Inventors: 常雪松; 郭动; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-27
Anticipated expiration: 2042-02-28
Also published as: CN115111839B

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge, wherein the refrigerator body is provided with a door body and a door body; the hinge is provided with a Leluo triangular block, a hinge shaft fixed with the Leluo triangular block and a first matching part; the door body is provided with a door front wall and a door side wall; the end part of the door body is provided with a guide groove, and the Leluo triangular block is matched with the guide groove; a linear 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; a second matching part is fixed on one side of the door body, which is far away from the side wall of the door, of the guide groove, and the second matching part is matched with the first matching part to realize locking and unlocking of the door body and the box body; when the door body is opened from a closed state, the Leluo 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 for a certain distance; the refrigerator provided by the invention has the advantage that the door body does not exceed or excessively exceeds the side surface of the refrigerator body when being opened.

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 technology, most of the hinge structures of the refrigerator door bodies are in a single-shaft form, the hinge shaft is matched with a shaft sleeve of the door body to enable the door body to rotate around the hinge shaft, and corners of the door body can exceed the side faces of a refrigerator body in the door opening process of the door body of the hinge structures.

For the embedded refrigerator, the refrigerator is generally placed in a cabinet, and the corner of a door body cannot exceed the size of a refrigerator body 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 invention solves at least one of the technical problems of the related art to some extent.

To this end, the present application is directed to a refrigerator having a hinge structure such that a door body does not extend or excessively extends beyond a side surface of a cabinet when the door body 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 integral side wall; the hinge is provided with a Lelo triangle block and a hinge shaft fixed with the Lelo triangle block; wherein, one end of the hinge far away from the first body side wall is provided with a first matching part;

the door body is provided with a door front wall close to the box body when the door body is closed, 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 Leluo triangular block is arranged in the guide groove and matched with two opposite groove walls of the guide groove;

the positioning groove is linear 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;

the second matching part is fixed on the door body, is positioned on one side, away from the door side wall, of the guide groove, and is used for being matched with the first matching part to lock and unlock the door body and the box body;

in the process that the door body is opened from a closed state, the Leluo triangular block moves relative to the guide groove; the hinge shaft moves relative to the positioning groove, so that the door body can rotate and move for a distance towards the direction close to the side wall of the second body.

As an embodiment of the present application, the first engagement portion is a stopper portion, and the second engagement portion is provided as a latch hook; when the door body is closed, the lock hook is locked with the stopping part.

As an embodiment of the present application, the latch hook includes an abutment portion and a hooking portion; one end of the root joint part is fixed with the door body, and the other end of the root joint part is connected with the hooking part.

As an embodiment of the present application, the free ends of the hooking portion and the stopper portion are both arc-shaped.

As an implementation manner of the present application, a first protrusion and a second protrusion are disposed on the door body, and the first protrusion is located on one side of the second protrusion, which is close to the door front wall and the door side wall; and the first projection and the second projection together define a clearance slot;

the root connection part is provided with a plug board which is arranged in the clearance groove.

As an embodiment of the present application, the second protrusion is provided as an arc-shaped plate, the edge of the first protrusion close to the second protrusion is consistent with the shape of the second protrusion, and the first protrusion and the second protrusion together define an arc-shaped clearance slot;

the insertion plate is arc-shaped and is matched with the arc-shaped clearance groove.

As an embodiment of the present application, the positioning groove is perpendicular to the door sidewall; the center line of the guide groove in the extending direction thereof is parallel to the door side wall.

As an embodiment of the application, the hinge is provided with a hinge plate fixedly connected with the box body, and a hinge shaft and a first fixed shaft are arranged on the hinge plate;

the Lelo triangle block comprises a first vertex A, a second vertex B and a third vertex C; a shaft sleeve and a third through hole are formed on the Leluo triangular block; the shaft sleeve is positioned at the vertex angle of the first vertex A, and the third through hole is arranged at the vertex angle of the second vertex B;

the hinge shaft is arranged in the shaft sleeve, and the first fixing shaft is contained in the third through hole.

As an embodiment of the present application, the hinge plate has a second fixed shaft; a fourth through hole is formed in the Reuluo triangular block and is formed in the vertex angle where the third vertex C is located; the second fixing shaft is contained in the fourth through hole.

As an embodiment of the present application, a central axis of the hinge shaft is denoted as a positioning central axis P, and a center of the reuleaux triangle block is denoted as O; wherein the positioning central axis P is located on the line segment AO.

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 Leluo triangular block, a hinge shaft fixed with the Leluo triangular block and a first matching part; the door body is provided with a door front wall and a door side wall; the end part of the door body is provided with a guide groove, and the Leluo triangular block is matched with the guide groove; a linear 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; a second matching part is fixed on one side of the door body, which is away from the side wall of the door, of the guide groove, and the second matching part is used for matching with the first matching part to lock and unlock the door body and the box body; 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 rotate and move for a certain distance in the direction close to the side wall of the second body; the refrigerator provided by the invention has the advantage that the door body does not exceed or excessively exceeds the side surface of the refrigerator body when being opened.

Drawings

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

Fig. 1 is a 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 shows the door opening of the refrigerator of the present invention to G ₄ View at the hinge;

FIG. 10 shows the door opening of the refrigerator of the present invention to G _max View at hinge > 90 °;

FIG. 11 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. 12 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₂ 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. 13 shows the door opening to G relative to the closed state of the refrigerator according to 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. 14 shows the door opening to G relative to the closed state of the refrigerator in accordance with the present invention ₄ Relative guide groove and hinge shaft of Shilerlo triangular blockA schematic diagram of the position relationship of 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 _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. 16 shows the door opening from the closed state 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. 17 shows a door assembly G of a refrigerator according to the present invention ₂ Is opened to G ₄ 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. 18 is a schematic view of a refrigerator door assembly G according to the present invention ₄ 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. 19 shows the door opening from the closed state to G 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 more than 90 degrees is schematically shown;

FIG. 20 is a view showing the refrigerator of the present invention in a closed state opened to G _max The motion situation of the side edge K in the process of more than 90 degrees is shown in a schematic diagram;

FIG. 21 is an exploded view of the lower end of the door body and the mounting block of the refrigerator according to the present invention;

FIG. 22 is a schematic view of the assembly of the lower end of the door body of the refrigerator with the mounting block of the present invention;

FIG. 23 is an exploded view of the door, mounting block and hinge of the refrigerator of the present invention;

FIG. 24 is an exploded view of the door, mounting block and hinge of the refrigerator of the present invention from another perspective;

FIG. 25 is a schematic view of the relative positions of the mounting block and the hinge plate when the door of the refrigerator is in a closed state;

FIG. 26 is a schematic diagram of the relative position of the mounting block and the hinge plate when the door of the refrigerator is opened at a certain angle.

In the above figures: a case 10; a storage chamber 20; a cabinet 100; door body30, of a nitrogen-containing gas; 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 Lelo triangle 5; positioning the central axis 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 A guide groove 7; a first guide strip 8; a second guide bar 9; the first projection 34; a second projection 35; the clearance groove 36; the accommodation grooves 37; a door end cap 38; a stopper portion 41; a hooking gap 42; a third through hole 53; a fourth through hole 54; a shaft sleeve 55; a first fixed shaft 61; a second fixed shaft 62; a mounting block 80; a latch hook 82; a root portion 83; a hooking portion 84; a patch panel 85.

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 implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", "third", "fourth", "fifth" may explicitly or implicitly include one or more of the 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.

Specifically, the cooling device may include an evaporator, a compressor, a condenser, and an expansion device, and may generate cold air by using latent heat of evaporation of the refrigerant. The cabinet 10 includes an inner container defining the storage chamber 20, an outer container connected 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; as one settable way, the refrigerating chamber serves to store foods in a refrigerating mode by maintaining air at a temperature of about 0 to 5 ℃; the freezing chamber serves to store food in a freezing mode by maintaining air at a temperature of 0 to-30 c. It is to be noted that the arrangement of the plurality of storage compartments 20 of the refrigerator is not limited to the above example description.

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 coupled 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 body side wall; the door 30 has a door front wall 31 that is distant from the cabinet 10 when the door 30 is closed, a door side wall 32 that is adjacent to the hinge and is connected to the door front wall 31, and a door rear wall 33 that is adjacent to the cabinet 10 and is disposed opposite to the door front wall 31. For example: when the hinge is positioned 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). A first guide strip 8 and a second guide strip 9 which are arranged in parallel are arranged at the end part of the door body 30 close to the hinge, and the first guide strip 8 and the second guide strip 9 jointly define a guide groove 7; 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 slot bottom 70 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 slot 7 extends in a direction from the door front wall 31 towards 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 bar 8 and the second guide bar 9, and a concave guide groove 7 may be directly formed at the end of the door body, the reuleaux triangle 5 is fitted to two opposite groove walls of the guide groove 7, and the positioning groove 6 is formed on the groove bottom 70 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; 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, a of the width of the guide groove 7. 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 is 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, the first guide strip 8, and the second guide strip 9 are provided on the door 30. It should be noted that the arrangement of the hinge shaft 4, the reuleaux triangle 5, the positioning slot 6, the first guide strip 8 and the second guide strip 9 is not limited to the arrangement and cooperation of the hinge or the door 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 connecting portion 401 connected to the casing 10, an extending portion 402 extending forward from the connecting 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 cabinet 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 door 30 has a connection portion 401 connected to the front end surface of cabinet 10. 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. That is, in the projection in the plane of the top wall of the box 10, the projections of the central lines of the two positioning grooves 6 at the upper and lower ends of the door 30 are completely overlapped, and the projections of the central lines of the two guiding grooves 7 at the upper and lower ends of the door 30 are completely overlapped.

In this embodiment, with reference to fig. 2, a plane of a side surface (a 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 an outer side, and a side of the reference plane M close to the storage chamber 20 is an inner side. When the refrigerator is used while being placed in the cabinet 100, in order to prevent the user from having uneven floor and deformation of the cabinet 100, the cabinet 100 is sized such that the distance α between the cabinet 100 and the side surface of the refrigerator (i.e., the first body side wall is the reference plane M) is 5 mm. 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.

To meet the above requirement, the door 30 needs to be able to move inward during the rotation process so that the side edge K does not go too far beyond the side surface (reference plane M) of the cabinet 10. Taking the link plate 40 disposed at the right side of the door 30 (in this example, the left side wall of the box 10 is the first body side wall), the inner side is the left side, that is, the door 30 needs to be able to move to the left side; taking the hinge plate 40 as an example of the door 30, the inner side is the right side, i.e., the door 30 needs to be able to move to the right side.

In this embodiment, the positioning groove 6 and the guide groove 7 are linear; that is, the positioning groove 6 and the guide groove 7 are each constituted by only one 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. The central track line of the positioning groove 6 is denoted as track line S. The positioning slot 6 is defined by the shape of a segment of a straight slot, the trajectory S being a straight line. The track line S extends linearly from a side far from the door sidewall 32 to a side close to the door sidewall 32, so that the door 30 can move a distance toward the inner side (close to the second body sidewall) while rotating, thereby preventing the door 30 from interfering with the cabinet 100 when being opened.

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 groove 6 and the guide groove 7 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; three vertexes of the Lelo triangle block 5 are sequentially marked as a first vertex A, a second vertex B and a third vertex C; the second vertex B is located on a side of the first vertex C away from the first body sidewall. Three sides of the reuleaux triangle 5 are marked as

Wherein,

and the third vertex C, the first vertex A and the second vertex B are arranged oppositely in sequence. Wherein,

is marked as a first central point A _m ，

Is marked as a second center 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 the present embodiment, the hinge axis 4 is disposed at the vertex angle of the reuleaux triangle 5 and the first vertex a. Optionally, the positioning central axis P is located on the line OA; a, P, O are located 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 an axis segment OP.

The Lelo triangular block 5 is fixed on the box body 10, and the first vertex A, the third vertex C and the second vertex B are sequentially far away from the box body 10; that is, the distances between the first vertex a, the third vertex C, and the second vertex B and the front end surface of the case 10 increase in this order. That is, the hinge axis 4 is disposed at the vertex where the reuleaux triangle 5 is closest to the first vertex a of the cabinet 10, so as to effectively increase the angle range of inward movement of the door 30 during the rotation process, so that the door 30 can keep a trend of inward movement during the rotation process, thereby limiting the distance by which 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 the present embodiment, the third vertex C is located on the side of the first vertex a and the second vertex B close to the first body sidewall. The hinge shaft 4 is arranged at the vertex angle where the first vertex A of the box body 10 is closest to the Lelo triangle block 5, so that the door body 30 is effectively ensured to keep a tendency of moving inwards in the rotating process when the door body 30 rotates relative to the Lelo triangle block 5. Optionally, the line segment AB is parallel to the first body sidewall (the reference plane M), so that the third vertex C is a point of the reuleaux triangle 5 closest to the first body sidewall, which effectively increases the range of the inward movement angle of the door 30 during the rotation process, and makes the door 30 keep the inward movement trend during the rotation process.

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 reuleaux triangle 5 (the connecting portion 401 of the hinge plate 40 is close to the vertex angle of the reuleaux triangle 5 corresponding to the first vertex a). In a plane parallel to the top wall of the box body 10, the movement of the reuleaux triangle 5 relative to the guide slot 7 is equal to the movement of the hinge plate 20 relative to the guide slot 7 and is also equal to the movement of the box body 10 relative to the door body 20; the movement of the axial line segment OP of the Lelo triangle block 5 relative to the guide slot 7 is equal to the movement of the Lelo triangle block 5 (hinge plate 40) relative to the guide slot 7; that is, the movement of the axial line segment OP relative to the guide groove 7 is equal to the movement of the door body 10 relative to the door body 30; in the following description, for convenience of explanation of the relative movement relationship, the movement of the positioning central axis P along the trajectory S represents 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 block 5 relative to the guide slot 7.

In the following description, 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 for convenience of explanation.

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 Second positioning endpoint P _e At a first location end point P ₀ Near one side of the door sidewall 32, the trajectory line S extends from a first location point P ₀ Extends to a second positioning end point P along a straight line to one side close to the door side wall 32 _e 。

In this embodiment, the distance between the trajectory S and the door front wall 31 is denoted as D ₁ And the distance between the trajectory S and the door rear wall 33 is denoted as D ₂ (ii) a Wherein D is ₁ ＞D ₂ (ii) a I.e. the trajectory line S is closer to the door rear wall 33 than to the door front wall 31. Can be arranged, D ₁ ：D ₂ E [1/3, 1)), when the user opens the door body 30, the external force applied to the door body 30 mainly acts on the side of the door body 30 close to the door front wall 31 and far away from the door side wall 32; relative to the door front wall 31, the positioning groove 6 is close to the door rear wall 33, 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; meanwhile, the strength of the door 30 and the positioning groove 6 is ensured.

In this embodiment, D is not less than 13mm ₁ ≦ 17mm, in the present example, set D ₁ ＝15mm，D ₂ Specifically, in the present embodiment, the maximum distance that the side edge K of the door 30 exceeds the reference plane M of the box 10 during the opening process is less than 3 mm.

In this embodiment, the positioning slot 6 is perpendicular to the door sidewall 32; 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 inward and outward directions, and the door 30 is moved inward. Specifically, in the present embodiment, the front door wall 31 is perpendicular to the side door wall 32, and the positioning groove 6 is parallel to the front door wall 31; the first guide strip 8 and the second guide strip 9 are perpendicular to the door front wall 31, i.e. 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 in a straight line parallel to the door front wall 31 to a second positioning end point P _e . The arrangement effectively utilizes the thickness of the door body 30 to enable the Leluo triangular blocks to be 5 phasesThe rotational sliding of the guide groove 7 is smoother.

The positioning groove 6 effectively limits the movement of the hinge shaft 4, and the guide groove 7 effectively limits the movement of the reuleaux triangle block 5, so that the reuleaux triangle block 5 is matched with the hinge shaft 4 to move in the guide groove 7, thereby enabling the door body 30 to move inwards for a certain distance in the opening process of the door body 30, and ensuring the stability and the fluency of the rotation and the opening of the door body 30. Above, through set up hinge pin 4 on the reuleaux triangle piece 5 fixed with hinge plate 40, the cooperation of hinge pin 4 and constant head tank 6 to reuleaux triangle piece 5 is driven by hinge pin 4, has increased door body 30 for the lateral displacement variation of box 10 at the perpendicular to reference plane M, and the distance that door body 30 moved to the inside in the opening process is increased, reduces door body 30 and opens the distance that the in-process surpasss the reference plane M outside, effectively avoids door body 30 and cupboard 100 to take place to interfere.

In some embodiments of the application, as shown in fig. 5, the central axis (positioning central axis P) of the hinge shaft 4 is located at the first positioning end point P of the track line S when the door body 30 is in the closed state ₀ The third vertex C of the reuleaux triangle 5 cooperates with the second guide bar 9;

cooperating with the first guide strip 8.

As one possible way, when the door 30 is in the closed state,

first center point A of _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 relative position of the hinge shaft 4 with respect to the positioning slot 6 and the relative position of the reuleaux triangle 5 with respect to the guide slot 7 are as follows:

wherein,

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

As shown in figure 5 of the drawings,

when the door body 30 is in a closed state; the center axis (positioning center axis P) of the hinge axis 4 is located at a first positioning end point P of the trajectory line S away from the door side wall 32 ₀ Of Lelo triangle 5

Is matched with the first guide strip 8; the third vertex C of the reuleaux triangle 5 cooperates with the second guide strip 9. In connection with the description of figure 11,

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

As shown in figure 6 of the drawings,

at the time, the door 30 is rotated from the closed state to the open state G ₂ The process of (excluding endpoint values); of the above-mentioned Lelo triangle 5 during opening

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

Above, the opening angle of the door 30

When the angle is opened, the matching relation between the Lelo triangular block 5 and the guide groove 7 in the opening angle interval is the same, and the angle is always the same

Cooperating with the first guide strip 8 and the third vertex C cooperating with the second guide strip 9. The differences are only that: the opening angle is different from the opening angle,

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

When the door body 30 is opened to the corresponding interval, one opening angle is selected to represent the relative positions of the Leluo triangular block 5 and the guide groove 7, and the hinge shaft 4 and the positioning groove 6; specifically, as shown in FIG. 6, to

Representing the position within the opening angle interval for comparison with the state in which the door body 30 is opened to the other state.

Door 30 open G ₁ When the center axis (positioning center axis P) of the hinge axis 4 is located at the first displacement point P of the trajectory 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 11 of the drawings,

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

As shown in figure 7 of the drawings,

at the same time, the door 30 is rotated to open to G ₂ (ii) a The center axis (positioning center axis P) of the hinge axis 4 is located at a second displacement point P of the trajectory line S ₂ Second displacement point P ₂ At a first location end point P ₀ The side adjacent the door side wall 32; the second vertex B of the Relo triangle 5 is matched with the first guide strip 8; the third vertex C of the reuleaux triangle 5 cooperates with the second guide strip 9. In connection with the description of figure 12 of the drawings,

when the triangular block 5 is in use, the first vertex A, the second vertex B, the third vertex C and the guide central point O of the triangular block are sequentially positioned at A in the guide groove 7 ₂ 、B ₂ 、C ₂ 、O ₂ To (3). Wherein, C ₀ 、C ₁ 、C ₂ 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. In this example, as shown in FIG. 7, G ₂ ∈[28°，30°](ii) a That is, when the door 30 is opened to the vicinity of 29 °, the second and third apexes B and C of the reuleaux triangle 5 are simultaneously engaged with the groove walls (the first and second guide bars 8 and 9) of the guide groove 7.

As shown in figure 8 of the drawings,

the door 30 is composed of ₂ Is rotated to open to G ₄ The process of (excluding endpoint values); in the opening process, the second vertex B of the Lelo 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 first guide strip 8 is opened, the matching relation between the Lelo triangular block 5 and the guide groove 7 in the opening angle interval is the same, and the second vertex B is always matched with the first guide strip 8; of luxo triangle 5

Always cooperating with the second guide strip 9. The differences are only that: the opening angle is different from the angle of the opening,

When the door body 30 is opened to the corresponding interval, one opening angle is selected to represent the relative positions of the Leluo triangular block 5 and the guide groove 7, and the hinge shaft 4 and the positioning groove 6; specifically, as shown in FIG. 8, to

G ₄ ) Represents the opening angle interval (G) ₂ ，G ₄ ) The inner position, as compared to when the door body 30 is opened to the other state.

Door 30 open G ₃ When the center axis (positioning center axis P) of the hinge axis 4 is located at the third displacement point P of the trajectory line S ₃ Third displacement point P ₃ At a second displacement point P ₂ And a second positioning end point P _e In the middle of; in connection with the description of figure 13,

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

Third center point C of _m Cooperating with the second guide strip 9. In this example, G ₃ ∈[62°，65°](ii) a That is, when the door 30 is opened to the vicinity of 63 °, the third center point C of the reuleaux triangle 5 exists _m The second vertex B is simultaneously engaged with the groove walls (first guide strip 8, second guide strip 9) of the guide groove 7.

As shown in figure 9 of the drawings,

at the same time, the door 30 is rotated to open to G ₄ When the center axis (positioning center axis P) of the hinge axis 4 is located at the second positioning end point P of the track line S _e The second vertex B of the reuleaux triangle 5 cooperates with the first guide bar 8; first vertex A and second vertex A of Lelo triangle 5The two guide strips 9 are matched. In connection with the description of figure 14,

when the guide plate is used, a first vertex A, a second vertex B, a third vertex C and a guide central point O of the Lelo triangular block 5 are sequentially positioned in the guide groove 7 _e 、B _e 、C _e 、O _e To (3). Wherein, B ₂ 、B ₃ 、B _e 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 ₄ Approximately equal to 90 degrees; specifically, G ₄ ∈[88°，92°](ii) a That is, when the door 30 is opened to about 90 °, the central axis (positioning central axis P) of the hinge shaft 4 is located at the second positioning end point P of the track line S _e The first apex a and the second apex B of the reuleaux triangle 5 are simultaneously engaged with the groove walls (the first guide bar 8 and the second guide bar 9) of the guide groove 7.

As shown in figure 10 of the drawings,

while the door body 30 is composed of G ₄ 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 vertex a of the reuleaux triangle 5 always cooperates with the second guide strip 9.

As described above, as shown in fig. 10, the opening angle of the door 30 is set

Is always matched with the first guide strip 8; the first vertex a of the reuleaux triangle 5 always cooperates with the second guide strip 9. The differences are only that: 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) ₄ ，G _max ]When the door 30 is opened, one of the opening angles is selected to represent that the door 30 is opened to a corresponding interval (G) ₄ ，G _max ]The relative positions of the triangular Lelo block 5 and the guide groove 7, and the hinge shaft 4 and the positioning groove 6; in particular, to

Represents the opening angle interval (G) ₄ ，G _max ]The inner position is compared with the door body 30 opened to other states (other angle ranges).

Door 30 open G _max When (G) _max > 90 deg., the central axis (positioning central axis P) of the hinge axis 4 is located at the fourth displacement point P of the trajectory 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 15 of the drawings,

when the triangular block 5 is in use, the first vertex A, the second vertex B, the third vertex C and the guide central point O of the triangular block are sequentially positioned at A in the guide groove 7 ₄ 、B ₄ 、C ₄ 、O ₄ To (3). Wherein A is _e 、A ₄ 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. Can be provided with G _max ∈[105°，115°]. As one practical way, door 30 is opened G _max Of hour, le lo triangular blocks 5

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

I.e., wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＜G _max (ii) a First positioning endpoint P ₀ First displacementPoint P ₁ A second displacement point P ₂ A third displacement point P ₃ The fourth shift point P ₄ A second positioning terminal P _e In turn along the trajectory S.

In the present embodiment, the first and second electrodes are,

at the fourth shift point P ₄ At a third displacement point P ₃ And a second positioning endpoint P _e In the meantime. It is to be noted that the setting is

Is different in size, there is a fourth displacement point P ₄ At a third displacement point P ₃ Far from the second positioning end point P _e One-sided case. At the setting

At the fourth shift point P ₄ At a third displacement point P ₃ And a second positioning endpoint P _e 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; the process of rotating and opening the door 30 is specifically described below:

as shown in fig. 16, the door 30 is rotated from the closed state to the open state G ₂ In the process, the door 30 passes through G from 0 DEG ₁ Open to G ₂ . In this process, the center axis (positioning center axis P) of the hinge shaft 4 passes through the first positioning end point P ₀ Moving along the trajectory S in a direction approaching the door jamb 32; specifically, the center axis (positioning center axis P) of the hinge shaft 4 passes through the first positioning end point P ₀ Passing a first displacement point P along the trajectory S ₁ Move to the second displacement point P ₂ . The opening angle of the door 30 does not reach G ₂ Before one

Angle G excluding end point of interval ₂ ) Of Lelo triangle 5

Always cooperating with the first guide strip 8 and the third vertex C of the reuleaux triangle 5 always cooperating with the second guide strip 9. The opening angle of the door 30 is G ₂ When the first guide strip 8 is matched with the second vertex B of the Lelo triangle block 5; the third vertex C of the reuleaux triangle 5 cooperates with the second guide strip 9.

In the opening process, the door 30 is opened from 0 degree to G degree by taking the positioning groove 6 and the guide groove 7 as reference objects ₁ When the axis segment OP is from O ₀ P ₀ Rotates clockwise and moves outward to O ₁ P ₁ At least one of (1) and (b); the door body 30 is composed of ₁ Is opened to G ₂ While the axis line segment OP is formed by O ₁ P ₁ Rotates clockwise and moves outward to O ₂ P ₂ To (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 ₂ Throughout the process, the reuleaux triangle 5 (i.e., the casing 10) keeps rotating clockwise and moving outward 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) ₂ Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise and moves inward with respect to the cabinet 10. I.e. the door 30 is rotated from the closed state to the open state G ₂ The door body 30 rotates counterclockwise and moves inward with respect to the cabinet 10 throughout the process; i.e., the door body 30 is opened while moving inward by a certain distance.

Specifically, as shown in FIG. 17, the door 30 is represented by G ₂ Is rotated to open to G ₄ In the process, the door 30 is composed of G ₂ Through G ₃ Is opened to G ₄ . In this process, the center axis (positioning center axis P) of the hinge shaft 4 passes through the second displacement point P ₂ Moving along the trajectory S in a direction approaching the door jamb 32; specifically, the center axis (positioning center axis P) of the hinge shaft 4 passes through the second displacement point P ₂ Past a third displacement point P along the trajectory S ₃ Move to the second positioning endpoint P _e . At the door body 30G ₂ Is rotated to open to G ₄ In the process of (1)

Angle G excluding end point of interval ₂ And G ₄ ) The second vertex B of the reuleaux triangle 5 always co-operates with the first guide strip 8, of the reuleaux triangle 5

Always cooperating with the second guide strip 9. The opening angle of the door 30 is G ₄ When the first guide strip 8 is matched with the second vertex B of the Lelo triangle block 5; the first vertex a of the reuleaux triangle 5 cooperates with the second guide strip 9.

In the above opening process, the positioning groove 6 and the guide groove 7 are used as reference objects, and the door 30 is formed by G ₂ Open to G ₃ When the axis segment OP is from O ₂ P ₂ Rotates clockwise and moves outward to O ₃ P ₃ At least one of (1) and (b); the door body 30 is composed of ₃ Is opened to G ₄ When the axis segment OP is from O ₃ P ₃ Rotates clockwise and moves outward to O _e P _e To (3). Since the positioning groove 6 and the guide groove 7 are disposed on the door 30, the axis 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 ₂ Open to G ₄ Throughout the process, the reuleaux triangle 5 (i.e., the box 10) keeps rotating clockwise and moving outward 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) ₂ Open to G ₄ Throughout the process, the door body 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise and moves inward with respect to the cabinet 10. I.e. when the door 30 is rotated from the closed state to the opened state G ₂ The door body 30 rotates counterclockwise and moves inward with respect to the cabinet 10 throughout the process; that is, the door body 30 is opened while moving inward by a certain distance.

The combined door body 30 is opened from a closed state to G ₂ Can obtain: the door 30 is opened from the closed state to G ₄ In the process of (1), the axis line segment OP is protectedThe tendency to rotate clockwise and move outward is represented by ₀ P ₀ Is sequentially moved to O ₁ P ₁ 、O ₂ P ₂ 、O ₃ P ₃ 、O _e P _e At least one of (1) and (b); that is, the door 30 is opened from the closed state to G by using the door 30 as a reference ₄ In the whole process, the Leluo triangular block 5 always keeps rotating clockwise and moves outwards relative to the door body 30. According to the relative motion, the door 30 is opened from the closed state to the open state G by taking the box 10 as a reference object (namely, the Lelo triangle block 5 as a reference object) ₄ 90 deg. throughout, the door 30 rotates counterclockwise and moves inward relative to the housing 10. I.e. the door 30 is rotated from the closed state to the open state G ₄ In the whole process of approximately 90 degrees, the door body 30 rotates counterclockwise relative to the box body 10 and moves inward; i.e., the door body 30 is opened while being moved inward by a first distance. Wherein, the first distance is from 0 degree to G degree of the door body 30 ₄ The distance the door 30 moves.

In addition, in the embodiment, 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 box 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 ∈ [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 shown in FIG. 18, the door 30 is composed of ₄ Is rotated to open to G _max In the process, the door 30 is turned from G ₄ Is opened to G _max . In this process, the center axis (positioning center axis P) of the hinge shaft 4 is defined by the second positioning end point P _e Moving back along the trajectory S in a direction away from the door jamb 32; specifically, the center axis (positioning center axis P) of the hinge shaft 4 is defined by a second positioning end point P _e Retreating along the track S to a fourth displacement point P ₄ (ii) a At the door body 30G ₂ Is rotated to open to G ₄ In the process of (1)

Angle G excluding end point of interval ₄ Including the interval end point G _max ) The first of the Lelo triangle 5A vertex A always cooperates with a first guide strip 8, and the B, C, of the Reuleaux block 5 always cooperates with a second guide strip 9.

In the opening process, the positioning groove 6 and the guide groove 7 are taken as reference objects, and the door body 30 is G ₄ Open to G _max While the axis line segment OP is formed by O _e P _e Rotates clockwise and moves inward to O ₄ P ₄ To (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: with the door 30 as a reference, the reuleaux triangle 5 (i.e., the casing 10) rotates clockwise relative to the door 30 and moves inward. 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) ₄ Is opened to G _max The door body 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise with respect to the housing 10 and moves outward by a second distance.

In summary, as shown in fig. 11-19, the axis line segment OP (the line connecting the center axis of the hinge shaft 4 (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 references ₄ And moves outwardly a first distance (from P) ₀ O ₀ →P ₁ O ₁ →P ₂ O ₂ →P ₃ O ₃ →P _e O _e ) And then clockwise from G ₄ Rotate to G _max > 90 deg. and is moved inward a second distance (from P) _e O _e →P ₄ O ₄ ) (ii) a Wherein the first distance > the second distance so as to be opposite 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).

That is, if the hinge shaft 4 and the Lelo triangle 5 are used as reference objects, the positioning slot 6 and the guide slot 7 are integrally rotated in the counterclockwise direction G ₄ And moves inward a first distance and then counterclockwise from G ₄ Rotate to G _max Greater than 90 ° and moving a second distance outwardly; since the first distance > the second distance; the door 30 is in the initial state (the door 30 is in the closed state)Open to G _max Above 90 deg., the positioning slot 6 and the guide slot 7 eventually move a certain distance inwards. In this embodiment, the positioning groove 6 and the guide groove 7 are disposed on the door 30, that is, the door 30 is opened to G with respect to the hinge fixed to the cabinet 10 _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.

In this embodiment, the second positioning endpoint P _e Compared with the first positioning end point P ₀ Near the door side wall 32, the trajectory line S extends in a straight line in a direction near the door side wall 32; thus, when the hinge shaft 4 moves in a direction approaching the door side wall 32 (the door 30 is opened from the closed state to G ₄ In the process), the door 30 with the positioning groove 6 moves a certain distance in a direction (inside) away from the door sidewall 32, and the door 30 moves inwards to prevent the side edge K from exceeding the side surface of the cabinet 10 too much and touching the cabinet 100.

As shown in fig. 20, the door 30 (positioning groove 6 and guide groove 7) is rotated and opened with respect to the cabinet 10 (hinge axis 4 and luxo triangle 5) as a reference, and the door 30 is opened to 0 ° and G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _max The position of the side edge K is sequentially positioned at K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K ₅ At least one of (1) and (b); i.e. when the door 30 is rotated to open to G _max In the process, the moving track of the side edge K is K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K ₅ Along with the curve it is on. It can be derived that: in the whole process that the door body 30 rotates and moves inwards and then rotates and moves outwards, the side edge K moves outwards for a certain distance and then keeps moving inwards; and rotates to G on the door body 30 ₂ To G ₃ To a maximum position outwardly. In this example, G ₂ ∈[28°，30°]，G ₃ ∈[62°，65°]If the door body 30 is rotated by an opening angle of 28-65 degrees, the side edge K moves outwards to the maximum point; compared with the opening mode of the door body 30 rotating around the fixed shaft, the side edge K is always kept in the process that the door body 30 is opened to 90 degreesMoving outward. 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, when the door 30 is rotated from the closed state (0 °) to open to G _max In the process of more than 90 degrees, the hinge shaft 4 moves relative to the positioning groove 6 along the track line S from a first positioning end point P ₀ Moving toward the door side wall 32 to a second positioning end point P _e Then the second positioning terminal point P _e Moves to a fourth displacement point P in a direction away from the door side wall 32 ₄ (ii) a Meanwhile, the Leluo triangular block 5 firstly rotates clockwise relative to the guide groove 7 and moves outwards for a first distance, and then rotates clockwise and moves inwards for a second distance; wherein the first distance > the second distance. I.e. when the door 30 is rotated from a closed state (0 deg.) to open to G _max In the whole process of more than 90 degrees, the hinge shaft 4 moves linearly from one end to the other end of the positioning groove 6 along the positioning groove, and then withdraws to move linearly; the reuleaux triangle 5 rotates clockwise and moves outward relative to the guide groove 7, and then rotates clockwise and moves inward.

Wherein the door 30 is opened from a closed state to G ₄ In the process (2), the hinge shaft 4 moves linearly in a direction approaching the door side wall 32, the reuleaux triangle 5 rotates and moves in a direction approaching the door side wall 32, and the door 30 always moves inward (in a direction approaching the second body side wall) by the first distance.

The door body 30 is composed of ₄ Open to the maximum angle G _max In the process, the hinge shaft 4 moves in a direction away from the door sidewall 32 along a straight line, the reuleaux triangle 5 rotates and moves in a direction away from the door sidewall 32, and the door 30 moves outward by a second distance.

That is, the door 30 is opened to an opening angle

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

The door 30 rotates and moves inward in the process of opening in the initial state. Therefore, when the door 30 is closed, the first vertex a, the second vertex B and the third vertex C of the reuleaux triangle 5 are not limited to be located at a in the present application ₀ 、B ₀ 、C ₀ Can be arranged so as to be located in the above A in sequence 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 At … …. That is, in the present embodiment, the door 30 is opened to the opening angle

The positions of the three vertices of the hour-glass triangle 5 with respect to the door 30 may be set at the positions of the three vertices of the hour-glass 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 Leluo triangular block 5 in the guide groove 7 are changed all the time, the situation of sudden change of stress does not exist, and the movement is smoother.

In some embodiments of the present application, referring to fig. 21 to 26, the positioning groove 6 and the guide groove 7 are formed on the door body 30, and the door body 30 includes a mounting block 80, and the mounting block 80 is mounted on the door body 30 at a position adjacent to the guide groove 7. In this embodiment, a first matching portion is disposed at an end of the hinge away from the first body sidewall, and the mounting block 80 has a second matching portion, where the second matching portion is used to match with the first matching portion to lock and unlock the door 30 and the box 10.

Specifically, in the present embodiment, the mounting block 80 provided at the lower end of the door body 30 is described as an example. The door body 30 includes a door end cap 38, and the door end cap 38 is disposed at an end of the door body 30 near the hinge. The door end cap 38 has a positioning groove 6 and a guide groove 7 near the hinge. That is, in the present embodiment, the positioning groove 6 and the guide groove 7 are integrally formed on the door end cover 38. In this embodiment, the door end cover 38 is an injection molded part, which is integrally formed by injection molding, and the positioning groove 6 and the guide groove 7 are formed thereon. As previously mentioned, the guide groove 7 is defined by the first guide strip 8 and the second guide strip 9 in cooperation.

The door cover 38 is provided with a receiving groove 37 at an adjacent position away from the door sidewall 32, and the mounting block 80 is inserted into the receiving groove 37, and then the mounting block 80 is fastened to the door body 30 by screws or the like.

In this embodiment, the second mating portion of the mounting block 80 is configured as a latch hook 82. 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 door side wall 32, and a free end of the latch hook 82 is located at a side close to the door rear wall 33.

A first matching part arranged on one side of the hinge plate 40 far away from the first body side wall is set as a stopping part 41, and a hooking gap 42 is formed on one side of the stopping part 41 close to the box body; when the door body 30 is in a closed state, the free end of the lock hook 82 is accommodated in the hooking gap 42, the stopping portion 41 is located in the lock hook 82, and the lock hook 82 on the door body 30 hooks the stopping portion 41 on the hinge plate 40, so that the door body 30 is locked, and the cold storage and freezing effects of the refrigerator are prevented from being influenced due to the fact that the door body 30 is not closed tightly; when the door body 30 is opened, the locking hook 82 is deformed by force to overcome the blocking of the stopper 41, so as to disengage from the stopper 41.

The shackle 82 may include an abutment 83 and a hooking 84. The abutment portion 83 is fixedly connected to the receiving groove 37, and the hooking portion 84 is connected to the abutment portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw is inserted into the root portion 83 and connected to the door body 30 to strengthen the connection strength between the root portion 83 and the door body 30, so that only the hooking portion 84 deforms when the latch hook 82 is separated from the stopper portion 41.

The free ends of the hooking portion 84 and the stopping portion 41 are both arc-shaped, which is beneficial for the hooking portion 84 to smoothly hook the stopping portion 41 or separate from the stopping portion 41 along the arc.

With reference to fig. 25 and 26, when the door 30 is closed from an open state, along with the rotation closing of the door 30, the free end of the hooking portion 84 gradually approaches the stopper portion 41, when the hooking portion 84 abuts against the stopper portion 41, the door 10 continues to be closed, under the action of the stopper portion 41, the hooking portion 84 deforms, the stopper portion 41 enters the hooking portion 84, and the free end of the hooking portion 84 enters the hooking gap 42; the latch hook 82 is locked with the hinge plate 40, so as to lock the door 30 with the cabinet 10. When the door 30 is opened from the closed state, the process is opposite to the process of closing the door, and will not be described herein. When the door body 30 is closed from the open state to an angle smaller than 7 degrees, the door body 30 is automatically closed under the action of the hooking part 84 and the stopping part 41; when the door body is opened to 5 to 8 degrees, the hooking part 84 is separated from the stopping part 41.

In some embodiments, the accommodating groove 37 of the door 30 may have a first protrusion 34 and a second protrusion 35 therein, and a gap groove 36 is formed between the first protrusion 34 and the second protrusion 35; the first projection 34 is located substantially on the side of the second projection 35 adjacent to the door front wall 31 and the door side wall 32. The insertion plate 85 is formed at the root part 83, and the insertion plate 85 is inserted into the gap groove 36, so that the root part 83 is prevented from being deformed in the direction from the door front wall 31 to the door rear wall 33 by the limit of the first protrusion 34 and the second protrusion 35.

Specifically, the inserting plate 85 is an arc-shaped plate; the second protrusion 35 is an arc-shaped plate, the edge of the first protrusion 34 close to the second protrusion 35 is consistent with the shape of the second protrusion 35, and the first protrusion 34 and the second protrusion 35 together define an arc-shaped clearance slot 36; the arc-shaped plate-like plug plate 85 is fitted with the arc-shaped clearance groove 36. The arc-shaped arrangement increases the limited area of the gap groove 36 to the root part 83, increases the connection strength of the mounting block 80 and the door body 30, and effectively limits the deformation of the root part 83.

It is possible to provide that the mounting block 80 located at the upper end of the door body 30 has a portion where only the positioning groove 6 and the guide groove 7 are provided, excluding the latch hook structure. Correspondingly, when the structure of the mounting block 80 is changed, the receiving groove 37 disposed on the door body is adapted to receive and fix the mounting block 80.

The mounting block 80 may be made of POM material, and POM has a strong friction resistance, which may improve the service life of the hinge. In addition, in this embodiment, the positioning groove 6, the guide groove 7 and the locking hook structure are integrally formed to form the mounting block 80, so that the structural accuracy is increased, and the integrity and the strength of the mounting block 80 are increased.

In addition, as shown in fig. 23 to 24, in the present embodiment, the extension 402 of the hinge plate 40 is provided with the hinge shaft 4 and the first fixed shaft 61; the vertex angle of the reuleaux triangle block 5 is provided with a third through hole 53, the third through hole 53 is positioned at the vertex angle of the reuleaux triangle block 5 corresponding to the second vertex B, and the first fixing shaft 61 is installed in the third through hole 53. Wherein, the height of the first fixing shaft 61 is less than the depth of the third through hole 53; that is, the first fixed shaft 61 is accommodated in the third through hole 53 to prevent the first fixed shaft 61 from interfering with the door 30 and affecting the relative movement of the door 30 with respect to the hinge.

Wherein the hinge shaft 4 is formed on the extension 402; the Lelo triangle 5 is formed with a shaft sleeve 55 at the vertex angle corresponding to the first vertex A, and the hinge shaft 4 is matched with the shaft sleeve 55. The upper hinge shaft 4 and the first fixing shaft 61 are arranged at two vertex angles of the Reulele triangle block 5; the hinge shaft 4 is arranged in the shaft sleeve 55, and the shaft sleeve 55 is matched with the positioning groove 6 on the door end cover 38, so that the hinge shaft 4 is prevented from being abraded; and after the axle sleeve 5 is destroyed, can maintain through changing the triangle piece 5 of lolo that is equipped with axle sleeve 55, convenient maintenance.

In the above, the reuleaux triangle 5 and the shaft sleeve 55 are integrally formed by die casting; the hinge plate 40, the hinge shaft 4 and the first fixed shaft 61 are integrally formed, so that the processing and the manufacturing are easy;

as another practicable manner, the second fixed shaft 62 is further provided on the extended portion 402 of the hinge plate 40; and a fourth through hole 54 is formed at the top corner of the Relo triangular block 5. The fourth through hole 54 is located at a vertex angle of the reuleaux triangle 5 corresponding to the third vertex C, and the second fixing shaft 62 is installed in the fourth through hole 54. The upper hinge shaft 4, the first fixing shaft 61 and the second fixing shaft 62 are respectively arranged at three top corners of the Leluo triangular block 5; the hinge shaft 4 is matched with a positioning groove 6 on the door end cover 38. Wherein, the Leluo triangle block 5 and the shaft sleeve 55 are integrally formed; the hinge plate 40, the hinge shaft 4, the first fixed shaft 61 and the second fixed shaft 62 are integrally formed, and the processing and the manufacturing are easy; effectively increased joint strength and wholeness each other, improved the structural strength of hinge and reuleaux triangle 5, effectively ensured its life. Wherein, the height of the second fixing shaft 62 is less than the depth of the fourth through hole 54; that is, the second fixed shaft 62 is accommodated in the fourth through hole 54; so as to avoid the interference of the second fixed shaft 62 with the door 30 and the influence of the relative movement of the door 30 with respect to the hinge.

As another practicable manner, the hinge shaft 4 is provided on the reuleaux triangle 5; the Relo triangle 5 is matched with the first fixed shaft 61 through the third through hole 53, and the fourth through hole 54 is matched with the second fixed shaft 62.

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 think of the changes or substitutions within the technical scope of the present invention, and shall cover 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 body side wall; the hinge is provided with a Lelo triangular block and a hinge shaft fixed with the Lelo triangular block; wherein, one end of the hinge far away from the first body side wall is provided with a first matching part;

the second matching part is fixed on the door body, is positioned on one side of the guide groove, which is far away from the side wall of the door, and is used for matching with the first matching part to realize the locking and unlocking of the door body and the box body;

2. The refrigerator according to claim 1, wherein: the first matching part is a stopping part, and the second matching part is a locking hook; when the door body is closed, the lock hook is locked with the stopping part.

3. The refrigerator according to claim 2, wherein: the lock hook comprises a root connection part and a hook part; one end of the root joint part is fixed with the door body, and the other end of the root joint part is connected with the hooking part.

4. The refrigerator according to claim 3, wherein: the free ends of the hooking part and the stopping part are arc-shaped.

5. The refrigerator according to claim 3, wherein: the door body is provided with a first bulge and a second bulge, and the first bulge is positioned on one side of the second bulge, which is close to the front wall and the side wall of the door; and the first projection and the second projection together define a clearance slot;

6. The refrigerator according to claim 5, wherein: the second bulge is arranged into an arc-shaped plate, the edge of the first bulge close to the second bulge is consistent with the shape of the second bulge, and the first bulge and the second bulge jointly define an arc-shaped clearance groove;

7. The refrigerator according to any one of claims 1 to 6, wherein: the positioning groove is vertical to the door side wall; the center line of the guide groove in the extending direction thereof is parallel to the door sidewall.

8. The refrigerator according to claim 7, wherein: the hinge is provided with a hinge plate fixedly connected with the box body, and the hinge plate is provided with a hinge shaft and a first fixed shaft;

9. The refrigerator according to claim 8, wherein: the hinge plate is provided with a second fixed shaft; a fourth through hole is formed in the Reuluo triangular block and is formed in the vertex angle where the third vertex C is located; the second fixing shaft is contained in the fourth through hole.

10. The refrigerator according to claim 8, wherein: 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.