CN115247928B

CN115247928B - Refrigerator with a refrigerator body

Info

Publication number: CN115247928B
Application number: CN202210294189.4A
Authority: CN
Inventors: 杨春; 郭动; 常雪松; 栾福磊; 张向平; 鲍雨锋
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2024-01-26
Anticipated expiration: 2042-03-24
Also published as: CN115247928A

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge arranged on the refrigerator body; the hinge is provided with a Lerlo triangular block and a hinge shaft positioned at one vertex angle of the Lerlo triangular block; the door body comprises a door front wall and a door side wall; the end of the door body, which is close to the hinge, is provided with a guide groove, and the triangular Lerlo block is matched with two opposite groove walls of the guide groove; a curved positioning slot is arranged at the bottom of the guide slot, and the hinge shaft is matched with the positioning slot; the distance between the positioning groove and the door front wall is increased and then decreased in the direction from one end far away from the door side wall to the door side wall; in the process that the door body is opened from the closed state, the Lerlo triangular block is always matched with two opposite groove walls of the guide groove; the hinge shaft moves relative to the positioning slot so that the door body can move inward and forward by a certain distance while rotating; the refrigerator provided by the invention can prevent the door body from exceeding or exceeding the side surface of the refrigerator body excessively when being opened, and simultaneously avoid interference with the refrigerator body when the door body is opened, so that the door body is opened more smoothly.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

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

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

Disclosure of Invention

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

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

The refrigerator according to the present application, comprising:

a housing 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 luxuriant triangular block and a hinge shaft; the hinge shaft is positioned at one vertex angle of the Lerlo triangle block;

a door body having a door front wall distant from the case when the door body is closed, a door side wall adjacent to the hinge and connected to the door front wall;

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

the positioning groove is curved and is positioned on the bottom of the guide groove; the hinge shaft is matched with the positioning slot; the distance between the positioning groove and the front wall of the door increases and decreases from one end far away from the side wall of the door to the side wall of the door;

In the process that the door body is opened from the closed state, the Lerlo 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 slot so that the door body can move inward and forward a distance while rotating.

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

As one embodiment of the present application, the guide groove includes a first guide bar and a second guide bar arranged in parallel, the first guide bar is located at a side of the second guide bar away from the door sidewall, and the positioning groove is located between the first guide bar and the second guide bar and extends from the first guide bar to the second guide bar.

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

As one embodiment of the present application, the lux triangle block includes a first vertex angle a, and the hinge axis is located at the first vertex angle a;

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

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

As one embodiment of the present application, the lux triangle block includes 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.

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, which is close to the first body sidewall.

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

As an embodiment of the present application, the distance between the door front wall and the first body side wall is denoted as D, D e [0,3], in: mm.

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; the hinge is provided with a Lerlo triangular block and a hinge shaft positioned at one vertex angle of the Lerlo triangular block; the door body comprises a door front wall and a door side wall; the end of the door body, which is close to the hinge, is provided with a guide groove, and the triangular Lerlo block is matched with two opposite groove walls of the guide groove; a curved positioning slot is arranged at the bottom of the guide slot, and the hinge shaft is matched with the positioning slot; the distance between the positioning groove and the door front wall is increased and then decreased in the direction from one end far away from the door side wall to the door side wall; in the process of opening the door body from the closed state, the Lerlo triangular block is always matched with the two opposite groove walls of the guide groove and moves relative to the guide groove; the hinge shaft moves relative to the positioning slot so that the door body can move inward and forward by a certain distance while rotating; the refrigerator provided by the invention can prevent the door body from exceeding or exceeding the side surface of the refrigerator body excessively when being opened, and simultaneously avoid interference with the refrigerator body when the door body is opened, so that the door body is opened more smoothly.

Drawings

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

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

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

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

fig. 4 is an exploded view of a hinge in an upper right corner of the refrigerator of the present invention;

fig. 5 is a view at a hinge of a door body of the refrigerator of the present invention in a closed state;

fig. 6 is a view showing a door body of the refrigerator of the present invention opened to G ₁ View at the time hinge;

fig. 7 is a view showing a door body of the refrigerator according to the present invention opened to G ₂ View at the time hinge;

fig. 8 is a view showing a door body of the refrigerator of the present invention opened to G ₃ View at the time hinge;

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

fig. 10 is a view showing a door body of the refrigerator of the present invention opened to G _e View at the time hinge;

fig. 11 is a view showing a door body of the refrigerator of the present invention opened to G ₅ View at the time hinge;

fig. 12 is a view showing a door body of the refrigerator of the present invention opened to G _max Views at the hinge > 90 °;

fig. 13 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₁ Shi Leluo schematic diagram of the relative position of the triangular block relative to the guide slot and the hinge shaft relative to the positioning slot;

fig. 14 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₂ Shi Leluo schematic diagram of the position relationship between the triangular block and the guide slot and between the hinge shaft and the positioning slot;

fig. 15 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₃ Shi Leluo schematic diagram of the position relationship between the triangular block and the guide slot and between the hinge shaft and the positioning slot;

fig. 16 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₄ Shi Leluo schematic diagram of the position relationship between the triangular block and the guide slot and between the hinge shaft and the positioning slot;

fig. 17 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state _e Shi Leluo schematic diagram of the position relationship between the triangular block and the guide slot and between the hinge shaft and the positioning slot;

fig. 18 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state ₅ Shi Leluo schematic diagram of the position relationship between the triangular block and the guide slot and between the hinge shaft and the positioning slot;

fig. 19 is a view showing a door of the refrigerator of the present invention opened to G with respect to a closed state _max The position relation of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot is shown in the schematic diagram when the angle is more than 90 degrees;

fig. 20 is a view showing a door body of the refrigerator according to the present invention opened from a closed state to a G _max A motion condition diagram of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot in the process of more than 90 degrees;

fig. 21 is a view showing a door body of the refrigerator of the present invention opened from a closed state to a G ₃ In the process, the movement condition of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot is schematically shown;

fig. 22 is a door body of the refrigerator according to the present invention, which is formed by G ₃ Open to G ₅ In the process, the movement condition of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot is schematically shown;

fig. 23 is a view showing a door body of the refrigerator according to the present invention, which is formed by G ₅ Open to G _max A motion condition diagram of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot in the process of more than 90 degrees;

fig. 24 is a door body of the refrigerator according to the present invention, which is formed by G ₃ Open to G _e In the process, the movement condition of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot is schematically shown;

fig. 25 is a view showing a door body of the refrigerator according to the present invention, which is formed by G _e Open to G _max A motion condition diagram of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot in the process of more than 90 degrees;

FIG. 26 is a view showing a door body of the refrigerator according to the present invention from a closed state through G ₁ Open to G ₂ In the process, the movement condition of the Lerlo triangle block relative to the guide slot and the hinge shaft relative to the positioning slot is schematically shown;

fig. 27 is a view showing the closed state of the refrigerator opened to G according to the present invention _max Schematic representation of the movement of the side edge K during > 90 °.

In the above figures: a case 10; a storage room 20; a cabinet 100; a door body 30; a door front wall 31; a door sidewall 32; a side edge K; a door rear wall 33; a hinge plate 40; a connection portion 401; an extension 402; a hinge shaft 4; a lux triangle 5; positioning a central axis P; guiding the center point O; a positioning groove 6; a track line S; first positioning endpoint P ₀ The method comprises the steps of carrying out a first treatment on the surface of the Second positioning endpoint P _e The method comprises the steps of carrying out a first treatment on the surface of the First displacement point P ₁ The method comprises the steps of carrying out a first treatment on the surface of the Second displacement point P ₂ The method comprises the steps of carrying out a first treatment on the surface of the Third displacement point P ₃ The method comprises the steps of carrying out a first treatment on the surface of the Fourth displacement point P ₄ The method comprises the steps of carrying out a first treatment on the surface of the Fifth displacement point P ₅ The method comprises the steps of carrying out a first treatment on the surface of the Sixth displacement point P ₆ The method comprises the steps of carrying out a first treatment on the surface of the A guide groove 7; a first guide bar 8; a second guide bar 9.

Detailed Description

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

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

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

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

Referring to fig. 1, the refrigerator includes a cabinet 10 having a storage compartment 20, a door 30 connected to the cabinet 10 to open and close the storage compartment 20, and a refrigerating apparatus to supply cold air to the storage compartment 20. The refrigeration device is a prior art and will not be described in detail herein.

The case 10 includes a liner defining the storage chamber 20, a housing coupled to an outer side of the liner to form an external appearance of the refrigerator, and a heat insulating layer disposed between the liner and the housing to insulate the storage chamber 20. The case 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.

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

The case 10 includes a first body sidewall and a second body sidewall (i.e., left and right sidewalls of the case 10) disposed opposite to each other; the hinge is arranged on the box body 10 and is close to the first body side wall; the door body 30 has a door front wall 31 distant from the case 10 when the door body 30 is closed, a door side wall 32 close to the hinge and connected to the door front wall 31, and a door rear wall 33 close to the case 10 and disposed opposite to the door front wall 31. For example: when the hinge is positioned on the right side of the case 10, the right side surface of the door 30 is a door sidewall 32 when the door 30 is closed; when the hinge is located on the left side of the case 10, the left side of the door 30 is the door sidewall 32 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 lux triangle 5, and a hinge axis 4 fixed to the lux triangle 5 and perpendicular to the lux triangle 5. Wherein the triangular block 5 is a flat plate with a triangular shape (Reuleaux triangle). The end of the door body 30 near the hinge is provided with a guide groove 7. In this embodiment, the guide groove 7 is defined by a first guide bar 8 and a second guide bar 9 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 groove 6 is positioned at the bottom of the guiding groove 7. The positioning groove 6 is arranged in the 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 in 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 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-defined form defined by the first guide bar 8 and the second guide bar 9, and may be formed with a concave guide groove 7 directly at the end of the door body, the lux triangle 5 is matched with two opposite groove walls of the guide groove 7, and the positioning groove 6 is formed on the groove bottom of the guide groove 7.

Wherein the hinge shaft 4 is adapted to the positioning slot 6, and the triangular lux block 5 is adapted to the guide slot 7; in this embodiment, the triangular lux block 5 is always in clearance fit with the opposite walls of the guide groove 7. The clearance fit gap may be set in the range of 0-0.3 mm. As a way of arranging, the side length of the regular triangle of the lux triangle 5 is a, and the width of the guiding groove 7 is equal to the side length of the regular triangle of the lux triangle 5, i.e. the width of the guiding groove 7 is a. The triangular block 5 is always tangential to the first and second guide bars 8, 9 when the triangular block 5 moves relative to the guide groove 7. During the rotation of the door body 30 to be opened or closed, the hinge shaft 4 moves relative to the positioning slot 6, and the lux triangular block 5 moves relative to the guide slot 7.

Here, in the present embodiment, only the hinge shaft 4 and the triangular lux block 5 are provided on the hinge, and the positioning groove 6 and the guide groove 7 are provided on the door body 30. The arrangement of the hinge shaft 4, the lux triangle 5, the positioning slot 6 and the guide slot 7 is not limited to the arrangement and cooperation of the hinge or the door body 30. The hinge shaft 4 is matched with the positioning slot 6, one of the hinge shafts is arranged on the door body 30, and the other hinge shaft is arranged on the hinge; the triangular block 5 is matched with the guide slot 7, the triangular block 5 is fixed with the hinge shaft 4, the positioning slot 6 is positioned in the guide slot 7, the position of the triangular block 5 is consistent with the position of the hinge shaft 4, and the position of the positioning slot 6 is consistent with the position of the guide slot 7. The above positions are different, but the principle is the same and will not be described in detail.

The hinge includes a hinge plate 40 fixedly connected with the case 10, the hinge plate 40 including: a connection portion 401 connected to the case 10, and a plate-like extension portion 402 extending forward from the connection portion 401 and having a horizontal plane. The connection portion 401 may be fastened to the top wall of the case 10 by fasteners such as screws, pins, and bolts.

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

The hinge at the lower end of the door 30 is connected to the front end surface of the case 10 at a connecting portion 401. The hinge shaft 4 and the lux triangle 5 are on the hinge plate 40, and the hinge shaft 4 extends upward.

The door body 30 is provided at both upper and lower ends thereof with a positioning groove 6 and a guide groove 7 corresponding to the position of the hinge plate 40. And the two positioning grooves 6 at the upper end and the lower end of the door body 30 correspond to each other in the vertical direction, and the two guiding grooves 7 correspond to each other in the vertical direction. So that the hinge provided at the upper end of the door body 30 moves in synchronization with the hinge provided at the lower end of the door body 30.

In this embodiment, with continued reference to fig. 2, a plane on the side surface (first body side wall) of the cabinet 10 adjacent to the hinge plate 40 is defined as a reference plane M, the refrigerator is accommodated in the cabinet 100, one side of the reference plane M adjacent to the cabinet 100 is denoted as an outer side, and the opposite side thereof adjacent to the storage compartment 20 is denoted as an inner side. When the refrigerator is placed in the cabinet 100 for use, in order to prevent factors such as uneven ground of a user and deformation of the cabinet 100, the cabinet 100 is sized such that a distance α=5 mm from a side surface of the refrigerator (i.e., the first body sidewall is the reference plane M). In order to ensure that the door 30 of the refrigerator is normally opened, the side edges K of the door 30 cannot protrude too much beyond the side (reference plane M) of the cabinet 10 during rotation of the door 30, so as to prevent the door 30 from being abnormally opened due to collision of the side edges K with the cabinet 100.

In this embodiment, the positioning slot 6 is a curved slot; the distance between the positioning groove 6 and the door front wall 31 increases and decreases from one end away from the door side wall 32 to the other end closer 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 case 10, the door front wall 31 is marked as an x-axis, the intersection point of the projection line of the guide groove 7 at the groove wall (first guide bar 8) 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 the axis passing through the origin (0, 0) and perpendicular to the x-axis is marked as a y-axis; the central trajectory of the positioning slot 6 is denoted as trajectory S; the center trajectory S is noted in this coordinate system as a function f (x), f (x) being located in the first quadrant of the xy coordinate system; as a settable way, f (x) is convex upward, and as x increases, f (x) decreases after increasing. I.e. f (x) has only one extreme point.

As an alternative, the positioning slot 6 comprises a first slot section remote from the door side wall 32 and a second slot section close to the door side wall 32; wherein the distance between the first groove section and the door front wall 31 gradually increases and the distance between the second groove section and the door front wall 31 gradually decreases from one end far from the door side wall 32 to the direction near the door side wall 32. The first groove section and the second groove section are connected smoothly through the transition groove section. 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.

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 tangential to the transition track section; that is, the first groove section and the second groove section are both tangent to the transition groove section to form a smooth detent 6.

The positioning groove 6 is defined by a shape formed by curved grooves, and the trajectory S is curved. Wherein the track line S extends from one side far from the door side wall 32 to one side close to the door side wall 32, and the distance between the track line S and the door front wall 31 increases and decreases; in addition, in the present embodiment, the guide groove 7 is linear; that is, the guide groove 7 is constituted by a length of linear groove. The hinge shaft 4 is matched with the positioning slot 6, and the triangular luxer 5 is matched with the guide slot 7. So that the door 30 can be moved inward (in a direction approaching the second body sidewall) and forward (in a direction away from the cabinet) by a distance while rotating, thereby preventing the door 30 from interfering with the cabinet 100 when the door 30 is opened and also preventing the door 30 from interfering with the cabinet 10.

Because of the relative motion relationship between the positioning slot 6 and the hinge shaft 4, and between the guide slot 7 and the lux triangle 5, if the door body 30 uses the positioning slot 6 and the guide slot 7 as stationary references during the opening process, the movement of the hinge shaft 4 in the positioning slot 6 corresponds to the movement of the lux triangle 5 in the guide slot 7. For convenience of description, the positioning slot 6 and the guide slot 7 with fixed relative positions are used as references, and the manner in which the hinge shaft 4 and the triangular lux block 5 move relative to the references is described.

In addition, in the present embodiment, the central axis of the hinge shaft 4 is denoted as a positioning central axis P, and the center point of the triangular block 5 is denoted as a guiding center point O; the three vertex angles of the Lerlow 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 away from the first body side wall.

As an implementation manner, the lux triangle block 5 may be set as an equal-width curve with standard three vertex angles as 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 alternative, the lux triangle 5 may be provided as a smooth constant width curve without any sharp peaks. The concrete setting mode is as follows: extending each side of the equilateral triangle to two directions by an equal section; drawing an arc by taking the three vertexes as circle centers, so that the radius of the arc subtended by the three inner angles is equal to the sum of the length of the side and the length of the extension line; the arc subtended by the subtended angle of the inner angle is equal to the length of the extension line. The curve of equal width, consisting of such six arcs, overcomes the cusp and is therefore much smoother. The arc angles corresponding to the sharp corners 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 arc angles. The points in the circular arcs of the first, second, and third apex angles a, B, and C are marked as apexes A, B, C corresponding to the respective apex angles. In this embodiment, the first vertex a, the second vertex B, or the third vertex C is matched with the groove wall of the guide groove 7, and it is defined that the vertex a, B, or C and the edges (the tip vertex or the arc angle corresponding to the first vertex a, the second vertex B, or the third vertex C) near the vertex a, B, or C are matched with the groove wall of the guide groove 7.

The three sides of the triangular block 5 are denoted as leWherein (1)>Is arranged opposite to the third vertex angle C, the first vertex angle A and the second vertex angle B in sequence. Wherein (1)>Is denoted as first center point A _m ，/>Is denoted as a second centre point B _m ，/>Is denoted as third center point C _m . The hinge shaft 4 is arranged at one vertex angle of the triangular Lerlow block 5; in this embodiment, the hinge axis 4 is provided at the first apex angle a of the triangular block 5. The positioning center axis P is positioned on a line segment OA (the connecting line of the guiding center O and the top corner point A); i.e. A, P, O are located on the same line segment; in this embodiment, the length of the line segment OP is greater than the length of the line segment AP. The line segment OP is denoted as an axis line segment OP.

The Lerlo 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 first apex angle a, the third apex angle C, and the second apex angle B are sequentially increased in distance from the front end surface of the casing 10. Namely, the hinge shaft 4 is arranged at the position of the first vertex angle A of the Lo triangle block 5 closest to the box body 10, so that the inward moving angle range of the door body 30 in the rotating process is effectively increased, the door body 30 can keep the inward moving trend in a large angle range in the rotating process, the distance that the side edge K of the door body 30 exceeds the side wall of the first body is limited, and the interference between the side edge K and the cabinet 100 is avoided.

In addition, in this embodiment, the third vertex C is located on one side of the first vertex a and the second vertex B near the first body sidewall. The hinge shaft 4 is disposed at the position of the first apex angle a of the lux triangle block 5 closest to the box body 10, so as to effectively ensure that the door body 30 can keep the inward movement trend in the rotating process when the door body 30 rotates relative to the lux triangle block 5. The line segment AB may be disposed parallel to the first body sidewall (the reference plane M), so that the third vertex angle C is a point of the lux triangle 5 closest to the first body sidewall, which effectively increases the angle range of inward movement during the rotation of the door body 30, so that the door body 30 moves inward from opening.

As shown in fig. 5-19, the movement of the hinge shaft 4 along the positioning slot 6 is equivalent to the movement of the positioning center axis P along the trajectory S. In the present embodiment, the hinge plate 40 is fixedly connected with the triangular block 5, and one of the opposite sides of the hinge plate 40 is connected with the triangular block 5Crossing, the other side is +.f. of the Lerlo triangle 5>And (5) intersecting. Lerlo triangular block 5 +.>Or/and->The movement of the triangular block 5 relative to the guide groove 7 is equivalent to Yu Leluo to the movement of the triangular block 7 relative to the guide groove 7 and also to the movement of the case 10 relative to the door 30. Similarly, the movement of the axis OP relative to the guide groove 7 is equivalent to the movement of the triangular block 5 relative to the guide groove 7 Yu Leluo, and is also equivalent to the movement of the case 10 relative to the door 30.

In the following description, for convenience of explanation, the movement of the positioning center 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 line OP relative to the guide slot 7 represents the movement of the triangular block 5 relative to the guide slot 7; that is, the movement of the axis line OP relative to the guide groove 7 indicates the movement of the case 10 (hinge plate 40) relative to the door 30.

As shown in fig. 5-19, the trajectory S includes a first locating endpoint P that is remote from the door sidewall 32 ₀ And a second locating endpoint P proximate door sidewall 32 _e The method comprises the steps of carrying out a first treatment on the surface of the The track line S is formed by a first positioning endpoint P ₀ Extends along a curve to a side near the door sidewall 32 to a second positioning end point P _e And the distance of the trajectory S from the door front wall 31 increases and then decreases.

In this embodiment, the trajectory S is closer to the door rear wall 33 than to the door front wall 31. When the 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 which is close to the door front wall 31 and far from the door side wall 32; in the present embodiment, the positioning slot 6 is located close to the door rear wall 33 with respect to the door front wall 31, so that the hinge shaft 4 is located at a position where the door body 30 is close to the door rear wall 33 and close to the door side wall 32 when opened, thereby ensuring the rotation and movement of the door body 30Fluency and stability; while also ensuring the strength of the door body 30 and the positioning groove 6. In this embodiment, the first positioning endpoint P ₀ 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 endpoint P _e The distance between the door rear wall 33 is denoted as D ₂ . Wherein D is ₀ ≥D ₁ ＞D ₂ The method comprises the steps of carrying out a first treatment on the surface of the I.e. settable, D ₂ ：D ₁ E [1/2, 1). The above arrangement can more balance the effect, match the user's habit, strengthen the stability that door 30 opened. It can be provided that, in the projection of the top wall of the cabinet 10, the intermediate plane between the door front wall 31 and the door rear wall 33 is denoted as the intermediate plane, the distance of which from the door front wall 31 is equal to the distance thereof from the door rear wall 33; the positioning slot 6 is located between the middle plane and the door rear wall 33.

In this embodiment, 13 mm.ltoreq.D ₂ 17mm, in the present example, set D ₂ ＝15mm，D ₁ The thickness of the door body 30 is between 44mm and 53mm, so that the distance between the side edge K of the corner of the door body 30 and the side surface (reference plane M) of the cabinet 10 is smaller in the door opening process, and in particular, in the embodiment, the maximum distance between the side edge K and the reference plane M of the cabinet 10 is smaller than 3mm in the door body 30 opening process, so that 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 slot 7 along the extending direction thereof is parallel to the door side wall 32 so as to generate a remarkable displacement in the inner and outer directions (transverse directions) when the hinge shaft 4 drives the lux triangular block 5 to move relative to the positioning slot, thereby moving the door body 30 inwards. Specifically, the door front wall 31 and the door side wall 32 are perpendicular to each other in the present embodiment; the first guide strip 8 and the second guide strip 9 are perpendicular to the door front wall 31, and the central line of the extending direction of the guide groove 7 which can be arranged is perpendicular to the door front wall 31. I.e. the track line S is defined by the first positioning end point P ₀ Extending along a curve protruding toward the door rear wall 33 to a second positioning end point P _e . The thickness of the door body 30 is effectively utilized, on one hand, the rotary sliding of the lux triangular block 5 relative to the guide groove 7 is smoother, and on the other hand, the door body 30 is rotatedMove inward and forward during opening.

The above positioning slot 6 effectively limits the movement of the hinge shaft 4, and the guide slot 7 effectively limits the movement of the triangular block 5 so that the triangular block 5 moves in the guide slot 7 in cooperation with the hinge shaft 4, thereby moving the door body 30 inward and forward a certain distance during the opening of the door body 30 and ensuring the stability and fluency of the rotational opening of the door body 30.

As shown in fig. 5, in some embodiments of the application, the positioning center axis P is located at the first positioning end point P of the track line S when the door 30 is in the closed state ₀ The third vertex angle C of the Lerlo triangle 5 is matched with the second guide strip 9;cooperating with the first guide strip 8. As a settable way, when the door body 30 is in the closed state, the +.>Is a first center point A of (1) _m Cooperating with the first guide strip 8.

In the present embodiment, the maximum angle G at which the refrigerator is opened _max The illustration is > 90 deg.. The door 30 is opened from the closed state to the maximum angle G _max In the process, when the door body 30 is rotated and opened to a specific angle, the position of the hinge shaft 4 relative to the positioning slot 6 and the position of the lux triangular block 5 relative to the guide slot 7 are specifically as follows:

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

As shown in figure 5 of the drawings,when the door body 30 is in a closed state; the positioning center axis P is located at a first position of the track line S away from the door sidewall 32Endpoint P ₀ +.f. of the triangular block 5 of Lerlo>Cooperate with the first guide strip 8; the third apex angle C of the lux triangle 5 cooperates with the second guide bar 9. In combination with FIG. 13->In the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₀ 、B ₀ 、C ₀ 、O ₀ Where it is located.

As shown in figures 6-8 of the drawings,when the door 30 is rotated from the closed state to G ₃ (excluding endpoint values); in the above opening procedure, the luxuriant piece 5 +.>Always cooperate with the first guide strip 8; the third apex angle C of the lux triangle 5 is always matched with the second guide bar 9.

The door body 30 is opened by the above angleIn this case, the fit relationship between the triangular blocks 5 and the guide grooves 7 in the opening angle range is always +.>The third vertex angle C cooperates with the first guide strip 8 and the second guide strip 9. The difference is that: different opening angles +. >The point of engagement with the guide groove 7 is different. Thus, the opening angleIn the time-course of which the first and second contact surfaces,any one of the opening angles can represent the relative positions of the lux triangle 5 and the guide slot 7 and the hinge shaft 4 and the positioning slot 6 when the door body 30 is opened to the corresponding section; specifically, as shown in FIG. 6, +.>A state diagram at that time; as shown in FIG. 7, ->A state diagram at that time; wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ；/>Or G ₂ Can represent the fit state in the interval.

As shown in fig. 6, the door 30 opens G ₁ When the positioning center axis P is located at the first displacement point P of the track line S ₁ First displacement point P ₁ At the first positioning end point P ₀ One side adjacent to the door sidewall 32; with reference to figure 14 of the drawings,in the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₁ 、B ₁ 、C ₁ 、O ₁ Where it is located.

As shown in fig. 7, the door 30 opens G ₂ When the positioning center axis P is located at the second displacement point P of the track line S ₂ Second displacement point P ₂ At the first displacement point P ₁ One side adjacent to the door sidewall 32; with reference to figure 15 of the drawings,in the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₂ 、B ₂ 、C ₂ 、O ₂ Where it is located.

As shown in figure 8 of the drawings,when the door body 30 is opened to G ₃ The method comprises the steps of carrying out a first treatment on the surface of the The positioning center axis P is positioned at a third displacement point P of the track line S ₃ Third displacement point P ₃ At the second displacement point P ₂ One side adjacent to the door sidewall 32; the second vertex angle B of the triangular Lerlow block 5 is matched with the first guide strip 8; the third apex angle C of the lux triangle 5 cooperates with the second guide bar 9. In combination with FIG. 16->In the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₃ 、B ₃ 、C ₃ 、O ₃ Where it is located. In conjunction with FIG. 20, wherein C ₀ 、C ₁ 、C ₂ 、C ₃ Are located on the second guide strip 9 and are arranged in sequence along the door front wall 31 from the door rear wall 33. In this embodiment, as shown in FIG. 8, G ₃ ∈[33°，37°]Any one of which; that is, when the door body 30 is opened to around 35 °, the second and third apex angles B and C of the triangular lux block 5 are simultaneously matched with the two opposing groove walls (the first and second guide bars 8 and 9) of the guide groove 7.

As shown in figures 9-11 of the drawings,when the door body 30 is formed by G ₃ Rotate and open to G ₅ (excluding endpoint values); in the opening process, the second vertex angle B of the Lerlo triangle 5 is always matched with the first guide strip 8; lerlo triangular block 5 +.>Is always engaged with the second guide strip 9.

The door body 30 is opened by the above angleWhen the angle opening range is opened, the matching relation between the Lerlo triangular block 5 and the guide groove 7 is the same, and the second vertex angle B is always matched with the first guide strip 8; lerlo san Corner block 5 +.>Is always engaged with the second guide strip 9. The difference is that: different opening angles +.>The point of engagement with the guide groove 7 is different. Thus, the opening angle +.>When any one of the opening angles can represent the relative positions of the lux triangle 5 and the guide slot 7 and the hinge shaft 4 and the positioning slot 6 when the door body 30 is opened to the corresponding section; specifically, as shown in FIG. 9, +.>A state diagram at that time; as shown in FIG. 10, a->A state diagram at that time; wherein G is ₃ ＜G ₄ ＜G _e ＜G ₅ ；/>Or G _e Can represent the fit state in the interval.

As shown in fig. 9, the door 30 opens G ₄ When the positioning center axis P is located at the fourth displacement point P of the track line S ₄ Fourth displacement point P ₄ At the third displacement point P ₃ And a second positioning end point P _e Between them; in connection with figure 17 of the drawings,in the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₄ 、B ₄ 、C ₄ 、O ₄ Where it is located. As an embodiment, the door 30 opens G ₄ At the time of +.f. of the Lerlo triangle 5>Is defined by the third center point C of (2) _m Cooperating with the second guide strip 9. In this embodiment, G ₄ ∈[58°，62°]Any one of which; i.e. when the door body 30 is opened to around 60 deg., there is a third center point C of the triangular block 5 of lux _m The second apex angle B is simultaneously matched with the groove walls (first guide bar 8, second guide bar 9) of the guide groove 7.

As shown in fig. 10, the door 30 opens G _e When the central axis P is located at the second end point P of the track line S _e The method comprises the steps of carrying out a first treatment on the surface of the I.e. the hinge axis 4 is located at the end of the detent 6 near the door side wall 32. In connection with figure 18 of the drawings,in the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 _e 、B _e 、C _e 、O _e Where it is located. In this embodiment, G _e ∈[81°，85°]Any one of which; that is, when the door 30 is opened to around 83 °, the positioning center axis P moves to the second positioning end point P _e 。

As shown in the figure 11 of the drawings,when the door body 30 is rotated to open to G ₅ The positioning center axis P is located at a fifth displacement point P of the track line S ₅ Fifth displacement point P ₅ Is positioned at the second positioning end point P _e Away from the side of the door sidewall 32. At this time, the second vertex angle B of the triangular block 5 of lux is matched with the first guide bar 8; the first apex angle a of the lux triangle 5 cooperates with the second guide bar 9. In connection with figure 19 of the drawings,in the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₅ 、B ₅ 、C ₅ 、O ₅ Where it is located. In conjunction with FIG. 20, wherein B ₃ 、B ₄ 、B _e 、B ₅ Are located on the first guide strip 8 and are arranged in sequence along the direction from the door front wall 31 to the door rear wall 33. In this embodiment, G ₅ =90°; specifically, G ₅ ∈[88°，92°]Any one of which; that is, when the door body 30 is opened to the vicinity of 90 °, the first apex angle a and the second apex angle B of the triangular lux block 5 are simultaneously matched with the groove walls (the first guide bar 8 and the second guide bar 9) of the guide groove 7.

As shown in figures 11-12 of the drawings,when the door body 30 is formed by G ₅ Rotate and open to G _max Is a process (including opening G _max ) In the above opening process, the +.f. of the Lerlo triangle 5>Always cooperate with the first guide strip 8; the first apex angle a of the lux triangle 5 is always matched with the second guide strip 9.

As shown in fig. 11 to 12, the door body 30 is opened at an angleIn the opening angle range, the fit relationship between the triangular Lerlow block 5 and the guide groove 7 is the same, always +.>Always cooperate with the first guide strip 8; the first apex angle a of the lux triangle 5 is always matched with the second guide strip 9. The difference is that: different opening angles +.>The point of engagement with the guide groove 7 is different. Thus, the opening angle satisfies (G ₅ ，G _max ]In this case, 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 Lerlo triangle 5 and the guide slot 7, and the hinge shaft 4 and the positioning slot 6; specifically, as shown in FIG. 12, < >>State diagram of->May represent the fit state within the interval.

As shown in fig. 12, the door 30 opens G _max Time (G) _max > 90 deg.), the positioning center axis P is located at a sixth displacement point P of the trajectory S ₆ Sixth displacement point P ₆ At a fifth displacement point P ₅ Away from the second positioning end point P _e One side. In connection with figure 20 of the drawings, In the process, the first vertex angle A, the second vertex angle B, the third vertex angle C and the guiding center point O of the Lerlo triangle 5 are sequentially positioned in the guiding groove 7 ₆ 、B ₆ 、C ₆ 、O ₆ Where it is located. In connection with FIG. 20, wherein A ₅ 、A ₆ Are located on the second guide strip 9 and are arranged in sequence along the door front wall 31 from the door rear wall 33. Settable, G _max ∈[105°，115°]. As an embodiment, the door 30 opens G _max At the time of +.f. of the Lerlo triangle 5>Third mating point B of (2) _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 The method comprises the steps of carrying out a first treatment on the surface of the First positioning endpoint P ₀ First displacement point P ₁ Second displacement point P ₂ Third displacement point P ₃ Fourth displacement point P ₄ Sixth displacement point P ₆ Fifth displacement point P ₅ Second positioning end point P _e Which in turn are distributed along the track S. In this embodiment, the opening angles of the door body 30 are sequentially recorded as a first angle G ₁ Second angle G ₂ Third angleDegree G ₃ Fourth angle G ₄ End point angle G _e 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 displacement point P ₄ And a second positioning end point P _e Between, a sixth displacement point P ₆ At the fourth displacement point P ₄ And a fifth displacement point P ₅ Between them. The reason for settingIs different in size and has a sixth displacement point P ₆ At the fourth displacement point P ₄ Away from the second positioning end point P _e A side case. In the set +.>At the sixth displacement point P ₆ At the fourth displacement point P ₄ And a fifth displacement point P ₅ Between them.

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 slot 6, and the triangular Lerlo block 5 moves relative to the guide slot 7;

from the above, it is clear that, from the fitting relation angle between the opposite two groove walls of the guide groove 7 and the lux triangular block 5,the second and third corners B, C of the triangular block 5 are in engagement with the opposite two groove walls of the guide groove 7. />The second apex angle B and the first apex angle a of the triangular block 5 are matched with the two opposite groove walls of the guide groove 7. I.e.)>Is->Opening the door body from the closed state to G _max Divided into three phases. The following describes these three stages from the point of view of the fitting relationship between the opposite two groove walls of the guide groove 7 and the lux triangular block 5:

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

In this first stage, the door 30 passes through G sequentially from 0 DEG ₁ 、G ₂ Open to G ₃ . In the process, the positioning center axis P is defined by a first positioning end point P ₀ Moving along the track S in a direction approaching the door sidewall 32; specifically, the positioning center axis P is defined by a first positioning end point P ₀ Sequentially passes through the first displacement point P along the track line S ₁ Second displacement point P ₂ Move to the third displacement point P ₃ . At the opening angle of the door body 30 not reaching G ₃ BeforeLerlo triangular block 5 +.>Is always matched with the first guide strip 8, and the third vertex angle C of the Lerlo triangle 5 is always matched with the second guide strip 9. At the opening angle G of the door body 30 ₃ When in use, the second vertex angle B of the triangular Lerlow block 5 is matched with the first guide strip 8; the third apex angle C of the lux triangle 5 cooperates with the second guide bar 9.

In the opening process of the first stage, the door body 30 is opened from 0 DEG to G by taking the positioning groove 6 and the guide groove 7 as reference objects ₃ In the case of the axis line segment OP being defined by O ₀ P ₀ Clockwise and outwardly and backwardly sequentially move to O ₁ P ₁ 、O ₂ P ₂ 、O ₃ P ₃ Department (O) ₀ P ₀ →O ₁ P ₁ →O ₂ P ₂ →O ₃ P ₃ ). Since the positioning groove 6 and the guiding groove 7 are arranged on the door body 30, the axis line OP represents the Lerlo three arranged on the box body 10Movement of the corner block 5; the following is obtained: taking the door body 30 as a reference, the door body 30 is opened from a closed state to G ₃ Throughout the process, the case 10 (i.e., the lux triangle 5) remains rotated clockwise and moves outwardly and backwardly with respect to the door 30. Based on the relativity of the movement, the door 30 is opened from the closed state to G by taking the box 10 as a reference (namely, taking the Lerlo triangle 5 as a reference) ₃ Throughout the process, the door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise with respect to the case 10 and moves inward and forward. I.e., the door 30 is opened while being moved inward and forward a certain distance, on the one hand, avoiding interference of the door 30 with the cabinet 100 and on the other hand, avoiding interference of the door 30 with the cabinet 10.

In the second stage, as shown in FIG. 22, the door 30 is formed by G ₃ Rotate and open to G ₅ Is a process of (1).

The door body 30 is formed by G ₃ Sequentially pass through G ₄ 、G _e Open to G ₅ . In the process, the positioning center axis P is defined by the third displacement point P ₃ Moving along the track S in a direction approaching the door sidewall 32, and then moving in a direction moving away from the door sidewall 32 in a reverse direction; specifically, the positioning center axis P is defined by a third displacement point P ₃ A fourth displacement point P is passed along the track line S in a direction approaching the door side wall ₄ Move to the second positioning end point P _e Then reversely withdraws to move to the fifth displacement point P in a direction away from the door sidewall 32 ₅ . At the door body 30, G is used ₃ Rotate and open to G ₅ In the process of (2)The second apex angle B of the triangular block 5 is always co-operating with the first guide strip 8, the +.>Is always engaged with the second guide strip 9. At the opening angle G of the door body 30 ₅ When in use, the second vertex angle B of the triangular Lerlow block 5 is matched with the first guide strip 8; the first apex angle a of the lux triangle 5 cooperates with the second guide bar 9.

In the second stage of opening, the positioning groove 6 and the guiding groove 7 are used as reference objectsThe door body 30 is formed by G ₃ Open to G ₅ In the case of the axis line segment OP being defined by O ₀ P ₀ The position keeps rotating clockwise and moves outwards and forwards in turn 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 inwards and backwards to O ₅ P ₅ Department (O) _e P _e →O ₅ P ₅ ). Since the positioning groove 6 and the guiding groove 7 are arranged on the door body 30, the axis line segment OP represents the movement of the lux triangle block 5 arranged on the box body 10; the following is obtained: taking the door body 30 as a reference object, the door body 30 is formed by G ₃ Open to G ₅ Throughout the process, the case 10 (i.e., the lux triangle 5) is kept rotating clockwise with respect to the door 30 and moves first outwardly and forwardly and then inwardly and backwardly. Based on the relativity of the movement, the door body 30 is formed by G by taking the box body 10 as a reference (namely, taking the Lerlo triangle 5 as a reference) ₃ Open to G ₅ In the whole process, the door body 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise relative to the case body 10 and moves inward and backward and then moves outward and forward for a certain distance.

In the third stage, as shown in FIG. 23, the door 30 is formed by G ₅ Rotate and open to G _max Is a process of (2).

The door body 30 is formed by G ₅ Open to G _max . In the process, the positioning center axis P is displaced from the fifth displacement point P ₅ Moves along the track line S in a direction away from the door sidewall 32 to a sixth displacement point P ₆ The method comprises the steps of carrying out a first treatment on the surface of the At the door body 30, G is used ₅ Rotate and open to G _max In the process of (2)The first apex angle a of the lux triangle 5 is always co-operating with the first guide bar 8, lux triangle 5 +.>Is always engaged with the second guide strip 9.

In the opening process of the third stage, the positioning groove 6 and the guiding groove 7 are used as reference objects, and the door body 30 is formed by G ₅ Open toG _max In the case of the axis line segment OP being defined by O ₅ P ₅ Clockwise and move back inward to O ₆ P ₆ Department (O) ₅ P ₅ →O ₆ P ₆ ). Since the positioning groove 6 and the guiding groove 7 are arranged on the door body 30, the axis line segment OP represents the movement of the lux triangle block 5 arranged on the box body 10; the following is obtained: taking the door body 30 as a reference object, the door body 30 is formed by G ₅ Open to G _max Throughout the process, the case 10 (i.e., the lux triangle 5) remains rotated clockwise and moves inwardly and backwardly with respect to the door 30. Based on the relativity of the movement, the door body 30 is formed by G by taking the box body 10 as a reference (namely, taking the Lerlo triangle 5 as a reference) ₅ Open to G _max The door 30 (i.e., the positioning groove 6 and the guide groove 7) is rotated counterclockwise with respect to the case 10 and moved forward outwardly by a certain distance. In combination with the above movement conditions of the first stage to the third stage, the following describes the estrus condition of the door 30 with respect to the case 10 in the right-left direction (lateral direction) perpendicular to the reference plane.

Combining the motion conditions of the first stage and the second stage, it can be obtained that: the door body 30 is opened from the closed state to G _e During the course of (a), the axis segment OP keeps rotating clockwise and moves outwards, the trend is represented by O ₀ P ₀ The positions are sequentially moved to O ₁ P ₁ 、O ₂ P ₂ 、O ₃ P ₃ 、O ₄ P ₄ 、O _e P _e Department (O) ₀ P ₀ →O ₁ P ₁ →O ₂ P ₂ →O ₃ P ₃ →O ₄ P ₄ →O _e P _e ) The method comprises the steps of carrying out a first treatment on the surface of the That is, the door 30 is used as a reference, and the door 30 is opened from the closed state to G _e The lux triangle 5 always keeps rotating clockwise and moving outwards relative to the door body 30 throughout. Based on the relativity of the movement, the door 30 is opened from the closed state to G by taking the box 10 as a reference (namely, taking the Lerlo triangle 5 as a reference) _e Throughout the process, the door 30 rotates counterclockwise and moves inward with respect to the case 10. I.e. when the door 30 is rotated from the closed state to G _e The door 30 rotates counterclockwise and moves inward with respect to the cabinet 10 throughout the course of the processA first distance. Wherein the first distance is from 0 DEG to G when the door 30 is opened _e The door 30 moves inward by a distance.

And the door body 30 is formed by G _e Rotate and open to G _max During the course of (a), the axis segment OP keeps rotating clockwise and moves inwards, and tends to be moved inwards by O _e P _e The positions are sequentially moved to O ₅ P ₅ 、O ₆ P ₆ Where (from P) _e O _e →O ₅ P ₅ →O ₆ P ₆ ) The method comprises the steps of carrying out a first treatment on the surface of the That is, the door body 30 is used as a reference, and the door body 30 is formed by G _e Rotate and open to G _max During the course of (a), the lux triangle 5 always keeps rotating clockwise and moving inwards relative to the door 30. Based on the relativity of the movement, the door body 30 is formed by G by taking the box body 10 as a reference (namely, taking the Lerlo triangle 5 as a reference) _e Rotate and open to G _max The door 30 rotates counterclockwise and moves outward with respect to the cabinet 10. Namely, at the door body 30, G is used as a material _e Rotate and open to G _max The door 30 rotates counterclockwise with respect to the case 10 and moves outward a second distance. Wherein the second distance is G for the door 30 _e Rotate and open to G _max The door 30 is moved outward by a distance.

To sum up, referring to fig. 13 to 23, the positioning groove 6 and the guiding groove 7 are used as reference objects, and the axis line OP (the connection line between the positioning center axis P and the center O of the lux triangle 5) is rotated clockwise by G _e And move outwardly a first distance (from P ₀ O ₀ →P ₁ O ₁ →P ₂ O ₂ →P ₃ O ₃ →P ₄ O ₄ →P _e O _e ) Then in the clockwise direction from G _e Rotated to G _max > 90 DEG and moved inward a second distance (from P _e O _e →P ₅ O ₅ →P ₆ O ₆ ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein the first distance > the second distance, i.e. relative to the initial state (P ₀ O ₀ ) The door body 30 is opened to G _max At > 90 deg., the axis OP rotates and moves outwardly a distance (the difference between the first distance and the second distance).

Based on the relativity of the movement, the hinge shaft 4 and the LerloThe triangular block 5 is used as a reference object, and the positioning groove 6 and the guide groove 7 integrally rotate G in the anticlockwise direction _e And move inwardly a first distance and then in a counterclockwise direction from G _e Rotated to G _max > 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 Throughout the process of > 90 deg., the positioning slot 6 and the guiding slot 7 are always moved inwards a certain distance. That is, the door body 30 (the positioning groove 6 and the guide groove 7) is opened to G with respect to the housing 10 (the hinge shaft 4 and the Lerlo triangular block 5) _max Throughout the process of > 90 deg., the door 30 always moves inward a certain distance with respect to the initial state (closed state) to effectively prevent the door 30 from touching the cabinet 100 during the opening process.

In combination with the above movement conditions of the first to third stages, the following describes an estrus condition of the door 30 with respect to the case 10 in the front-rear direction (longitudinal direction) perpendicular to the access opening of the case 10.

Referring to fig. 21, as shown in fig. 24 and 25, the positioning groove 6 and the guide groove 7 are used as reference objects, and the axis line OP (the connection line between the positioning center axis P and the center O of the lux triangle 5) is rotated clockwise by G ₃ And moves backward by a first displacement amount (shown in fig. 21, denoted by P ₀ O ₀ →P ₁ O ₁ →P ₂ O ₂ →P ₃ O ₃ ) Then in the clockwise direction from G ₃ Rotated to G _e And moves forward by a second displacement amount (shown in fig. 24, by P ₃ O ₃ →P _e O _e ) From G) then in the clockwise direction _e Rotated to G _max And moves backward by a third displacement amount (shown in FIG. 25, denoted by P _e O _e →P ₅ O ₅ →P ₆ O ₆ ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein the first displacement amount is greater than the second displacement amount; that is, with respect to the initial state (P ₀ O ₀ ) The door body 30 is opened to G _max At > 90 deg., the axis line OP rotates and moves backward by a certain distance (first displacement + third displacement-second displacement).

Based on the relativity of the movementThe whole of the positioning slot 6 and the guide slot 7 rotates G in the anticlockwise direction firstly by taking the hinge shaft 4 and the Lerlo triangle 5 as reference objects ₃ And move forward by a first displacement amount and then move in the anticlockwise direction from G ₃ Rotated to G _e And moves back by a second displacement amount and then in a counterclockwise direction by G _e Rotated to G _max > 90 DEG and a third displacement forward; since the first displacement amount > the second displacement amount; the door 30 is opened to G with respect to the initial state (the door 30 closed state) _max Throughout the process of > 90 deg., the positioning slot 6 and the guiding slot 7 are always moved forward a certain distance. That is, the door body 30 (the positioning groove 6 and the guide groove 7) is opened to G with respect to the housing 10 (the hinge shaft 4 and the Lerlo triangular block 5) _max In the whole process of more than 90 degrees, the door body 30 always keeps a certain distance to move forwards relative to the initial state (closed state), so that interference with the box body 10 in the opening process of the door body 30 is effectively avoided.

In summary, in combination with the movement of the door 30 in the front-rear direction (longitudinal direction) and the left-right direction (transverse direction) with respect to the case 10, it is obtained that:

Taking the box body 10 as a reference object, the door body 30 is opened from a closed state to G ₃ Throughout the process, the door 30 is rotated counterclockwise to open and move inward and forward with respect to the case 10.

The door body 30 is formed by G ₃ Rotate and 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 case 10 to be opened and moved inward and rearward.

The door body 30 is formed by G _e Rotate and open to G _max During > 90 deg., the door 30 (i.e., the positioning groove 6 and the guide groove 7) is rotated counterclockwise to open and move inward and forward with respect to the case 10.

In combination with the above, the movement of the hinge shaft 4 with respect to the positioning slot 6 during the opening of the door 30 will be described below with respect to the estrus of the door 30 in the front-rear direction (longitudinal direction) perpendicular to the access opening of the box 10 with respect to the box 10.

In the present embodiment of the present invention,when the hinge shaft 4 moves to the positionThe position of the groove 6 having the greatest distance from the door front wall 31 (third displacement point P ₃ ). That is, in the present embodiment, the hinge shaft 4 moves to the third displacement point P ₃ When the positioning groove 6 is at the maximum distance from the door front wall 31, and the second and third vertex angles B and C are simultaneously engaged with the opposite groove walls of the guide groove 7. In the specific arrangement, the displacement point where the positioning groove 6 is most distant from the door front wall 31, the displacement point where the second apex angle B and the third apex angle C are simultaneously engaged with the opposite groove walls of the guide groove 7 are not limited to the above arrangement, and the above two displacement points may be two different displacement points on the trajectory line S.

In addition, in the case of the optical fiber,when the central axis P is located at the second end P of the track S _e 。

In combination with the aforementioned first stage movement, as shown in fig. 21, the door 30 is rotated from the closed state to the open state G ₃ In the process of (1), the positioning center axis P is defined by the first positioning end point P by taking the positioning groove 6 as a reference object ₀ Moves along the track line S to a third displacement point P in a direction approaching the door side wall 32 ₃ The method comprises the steps of carrying out a first treatment on the surface of the In this process, the distance between the positioning center axis P and the door front wall 31 gradually increases. That is, the door body 30 is rotated from the closed state to G ₃ The hinge shaft 4 moves relative to the positioning slot 6 in a direction approaching the door rear wall 33 and the door side wall 32.

In combination with the aforementioned second stage movement, as shown in FIG. 24, the door 30 is formed by G ₃ Rotate and open to G _e In the process of (2), the positioning groove 6 and the guide groove 7 are used as reference objects, and the positioning center axis P is defined by a third displacement point P ₃ Moving along track S in a direction toward door sidewall 32 to a second locating endpoint P _e The method comprises the steps of carrying out a first treatment on the surface of the In this process, the distance between the positioning center axis P and the door front wall 31 gradually decreases. That is, the door body 30 is formed by G ₃ Rotate and open to G _e The hinge shaft 4 moves with respect to the positioning slot 6 in a direction approaching the door front wall 31 and the door side wall 32.

From the above, the door 30 is rotated from the closed state to the open state G _e The hinge shaft 4 is positioned relative to the positioning slot 6The end of the slot 6 remote from the door sidewall 32 moves toward its end adjacent to the door sidewall 32, and the distance of the hinge shaft 4 from the door sidewall 32 gradually decreases.

In combination with the aforementioned second and third stage motions, as shown in FIG. 25, the door 30 is formed of G _e Rotate and open to G _max In the process of more than 90 DEG, the positioning groove 6 and the guiding groove 7 are used as reference objects, and the positioning center axis P is defined by a second positioning endpoint P _e Reverse withdrawal moves along track S away from door sidewall 32 to a sixth displacement point P ₆ The method comprises the steps of carrying out a first treatment on the surface of the In this process, the distance between the positioning center axis P and the door front wall 31 gradually increases. That is, the door body 30 is formed by G _e Rotate and open to G _max During > 90 deg., the hinge axis 4 moves relative to the detent 6 in a direction toward the door back wall 33 and away from the door side wall 32.

In combination, the door body 30 is opened from the closed state to G _max In the process of > 90 DEG, the hinge shaft 4 (positioning center axis P) is first moved along the track S in a direction approaching the door side wall 32 to the second positioning end point P _e And then reversely withdraws to a sixth displacement point P along the track S in a direction away from the door sidewall 32 ₆ . In addition, the hinge axis 4 (positioning center axis P) is defined along the trajectory S by a first positioning point P ₀ Move to the second positioning end point P _e The distance of the hinge shaft 4 from the door front wall 31 increases and then decreases.

As an embodiment, when the door 30 is rotated to be opened to 90 °, the door front wall 31 of the door 30 is parallel to the first side wall of the case 10; wherein, the distance between the front wall 31 of the door body 30 and the first body side wall of the box body 10 is denoted as D, D E [0,3], unit: mm. Note that at this point the door front wall 31 is located either outboard or inboard of the first body side wall, or the door front wall 31 is coplanar with the first body side wall.

As another embodiment, referring to fig. 26, the door 30 is opened from the closed state to G ₁ In the course of (2), the inward movement distance per unit angle of rotation of the door body 30 is denoted as s ₁ The method comprises the steps of carrying out a first treatment on the surface of the I.e. the door 30 is opened from the closed state to G ₁ In the course of (a), the door body 30 rotates by a unit angle to generate a lateral displacement s ₁ ；

The door body 30 is formed by G ₁ Open to G ₂ In the course of (2), the inward movement distance per unit angle of rotation of the door body 30 is denoted as s ₂ The method comprises the steps of carrying out a first treatment on the surface of the Namely, the door body 30 is formed by G ₁ Open to G ₂ In the course of (a), the door body 30 rotates by a unit angle to generate a lateral displacement s ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein s is ₁ ＜s ₂ . So that the door body 30 is opened at the initial stage (0-G) ₁ ) The rotational movement is mainly used to rapidly separate the door 30 from the case 10 when the door 30 is opened.

Settable, G ₁ Is set to any one of 5 DEG to 8 deg. G ₂ Is set to any one of 8 DEG to 18 deg. The door 30 is arranged to be opened from a closed state to a G state ₁ When the door body 30 moves inward, the lateral displacement is 1mm, and the displacement is G ₁ Open to at G ₂ The lateral displacement of the inward movement of the door 30 is 1.8mm.

As shown in fig. 27, with the case 10 (hinge shaft 4 and lux triangular block 5) as a reference, the door 30 (positioning slot 6 and guide slot 7) is rotated to be opened with respect to the case 10, corresponding to the door 30 being opened to 0 °, G ₁ 、G ₂ 、G ₃ 、G ₄ 、G _e 、G ₅ 、G _max The positions of the side edges K relative to the Luylor triangular blocks 5 are sequentially positioned at K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K _e 、K ₅ 、K ₆ A place; i.e. the door body 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 _e 、K ₅ 、K ₆ While the curve is located. It can be derived that: in the whole process that the door body 30 rotates and moves inwards and forwards, then rotates and moves outwards and backwards, and then rotates and moves inwards and forwards, the side edges K move outwards for a certain distance, and then keep the trend of moving inwards; and rotates to G at the door body 30 ₃ To G ₄ To a maximum position. In this embodiment, G ₃ ∈[33°，37°]，G ₄ ∈[58°，62°]Any value of the values gives that the side edge K moves outwards to the maximum point when the door body 30 rotates to open at an angle of 33-62 degrees; compared with winding and fixing The door body 30 with the rotating shaft is opened, and the side edges K always keep the arrangement of outward movement in the process of opening the door body 30 to 90 degrees; the arrangement in this embodiment effectively reduces the range of outward movement of the side edge K, and limits it to the range of the distance between the reference plane M (first body side wall) and the cabinet 100, thereby avoiding collision with the cabinet 100 during the opening of the door 30.

In the embodiment of the present application, the door body 30 is opened to an opening angleWhen the door 30 is rotated, it is kept moving inward. Namely, the relative positions of the hinge shaft 4 and the positioning slot 6 are shown as +.>The door body 30 is rotated and moved inward at the initial stage of opening the door body in the initial state of opening. Therefore, when the door body 30 is closed, the first vertex angle A, the second vertex angle B and the third vertex angle C of the triangular Lerlow block 5 are not limited to be positioned at A in the application ₀ 、B ₀ 、C ₀ Where it is arranged to be sequentially positioned at A above ₁ 、B ₁ 、C ₁ At the position, it can also be arranged to be sequentially positioned at A ₂ 、B ₂ 、C ₂ Where it is arranged so that it is located in sequence at A ₃ 、B ₃ 、C ₃ And a portion … …. Namely, in the present embodiment, the door body 30 is opened to the opening angleThe positions of the three corners of the triangular block 5 with respect to the door body 30 of Shi Leluo may be set to the positions of the three corners of the triangular block 5 with respect to the door body 30 in the initial state when the door body 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 slot 6 and the position of the Lerlo triangular block 5 in the guide slot 7 are always changed, the situation of abrupt stress is avoided, and the movement is smoother.

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

Claims

1. A refrigerator, characterized in that it comprises:

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

a door body having a door front wall distant from the case when the door body is closed, a door rear wall opposite to the door front wall, a door side wall adjacent to the hinge and connected to the door front wall;

The guide groove is arranged at the end part of the door body, which is close to the hinge; the Lerlo triangle block is arranged in the guide groove; the guide groove is linear and extends along the direction from the front wall to the rear wall of the door, and the central line of the guide groove along the extending direction is parallel to the side wall of the door;

the positioning groove is curved and is positioned on the bottom of the guide groove; the hinge shaft is matched with the positioning slot; the positioning groove extends from one end far away from the door side wall to a direction close to the door side wall; the distance between the positioning groove and the front wall of the door increases and decreases from one end far away from the side wall of the door to the side wall of the door;

in the process that the door body is opened from a closed state, the Lerlo triangular block is always in clearance fit with the two opposite groove walls of the guide groove and moves relative to the guide groove; the hinge shaft moves relative to the positioning slot so that the door body can move inward and forward by a distance while rotating;

when the door body is rotated and opened to 90 degrees, the door front wall of the door body is parallel to the first body side wall of the box body, and the distance between the door front wall and the first body side wall is recorded as D, D epsilon [0,3] in units: mm.

2. The refrigerator of claim 1, wherein: the guide groove comprises a first guide bar and a second guide bar which are arranged in parallel, the first guide bar is positioned at one side, away from the side wall of the door, of the second guide bar, and the positioning groove is positioned between the first guide bar and the second guide bar and extends along the direction from the first guide bar to the second guide bar.

3. The refrigerator according to claim 1 or 2, wherein: the distance between the end of the locating groove far away from the side wall of the door and the front wall of the door is recorded as D ₀ The distance between the end of the positioning groove close to the door side wall and the door front wall is denoted as D ₁ Wherein D is ₀ ≥D ₁ 。

4. The refrigerator according to claim 1 or 2, wherein:

5. The refrigerator of claim 4, wherein: the length of the line segment AP is smaller than the length of the line segment PO.

6. The refrigerator of claim 4, wherein: the Lerlo triangle 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.

7. The refrigerator of claim 6, wherein: the third vertex angle C is positioned at one side of the first vertex angle A and the second vertex angle B, which is close to the first body side wall.

8. The refrigerator of claim 7, wherein: line segment AB is parallel to the first body sidewall.