CN115111839B

CN115111839B - Refrigerator with a refrigerator body

Info

Publication number: CN115111839B
Application number: CN202210191963.9A
Authority: CN
Inventors: 常雪松; 郭动; 杨春
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2024-02-27
Anticipated expiration: 2042-02-28
Also published as: CN115111839A

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a door body and a hinge; the hinge is provided with a Larlo triangular block, a hinge shaft fixed with the Larlo 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 Lelo triangle block is matched with the guide groove; the bottom of the guide groove is provided with a linear positioning groove which extends from one end far away from the side wall of the door to the direction close to the side wall of the door; the hinge shaft is matched with the positioning slot; 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 lock and unlock the door body and the box body; 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 for 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 when being opened.

Description

Refrigerator with a refrigerator body

Technical Field

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

Background

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

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

Disclosure of Invention

The present 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 Lorentz triangle block and a hinge shaft fixed with the Lorentz triangle block; wherein, one end of the hinge far away from the first body side wall is provided with a first matching part;

a door body having a door front wall adjacent to 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 and is matched with two opposite groove walls of the guide groove;

The positioning groove is linear and is positioned on the bottom of the guide groove; the positioning groove extends from one end far away from the door side wall to a direction close to the door side wall; the hinge shaft is matched with the positioning slot;

the second matching part is fixed on the door body and is positioned at one side of the guide groove away from the side wall of the door, and 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 the closed state, the Lerlo triangular block moves relative to the guide groove; the hinge shaft moves relative to the positioning slot, so that the door body can move a distance to a direction approaching the second body side wall while rotating.

As one embodiment of the present application, the first mating portion is a stop portion, and the second mating portion is configured as a latch hook; when the door body is closed, the lock hook is locked with the stop part.

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

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

As one embodiment of the application, 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 and second protrusions together define a clearance slot;

the root connection part is provided with a plugboard, and the plugboard is installed in the clearance groove.

As one embodiment of the 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 jointly define an arc-shaped clearance groove;

the plug board is arc-shaped and is matched with the arc-shaped clearance groove.

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

As one embodiment of the application, 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;

the Lerlo triangle block comprises a first vertex A, a second vertex B and a third vertex C; the Lerlo triangular block is provided with a shaft sleeve and a third through hole; the shaft sleeve is positioned at the vertex angle where the first vertex A is positioned, and the third through hole is positioned at the vertex angle where the second vertex B is positioned;

The hinge shaft is installed in the shaft sleeve, and the first fixing shaft is accommodated in the third through hole.

As one embodiment of the application, a second fixed shaft is arranged on the hinge plate; a fourth through hole is formed in the Lerlow triangular block, and the fourth through hole is arranged at the vertex angle where the third vertex C is located; the second fixing shaft is accommodated in the fourth through hole.

As one embodiment of the present application, the central axis of the hinge shaft is denoted as a positioning central axis P, and the center of the triangular block of the lux is denoted as O; wherein the positioning center 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; the hinge is provided with a Larlo triangular block, a hinge shaft fixed with the Larlo 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 Lelo triangle block is matched with the guide groove; the bottom of the guide groove is provided with a linear positioning groove which extends from one end far away from the side wall of the door to the direction close to the side wall of the door; the hinge shaft is matched with the positioning slot; 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 used for matching with the first matching part to lock and unlock the door body and the box body; 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 a distance to a direction close to the side wall of the second body while rotating; the refrigerator provided by the invention can prevent the door body from exceeding or exceeding the side surface of the refrigerator body when being opened.

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 _max Views at the hinge > 90 °;

fig. 11 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. 12 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. 13 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. 14 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. 15 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. 16 is a view showing a door body of the refrigerator of the present invention opened from a closed state to a closed state 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. 17 is a door body of the refrigerator according to the present invention, which is formed by G ₂ Open to G ₄ 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. 18 is a door body of the refrigerator according to the present invention, which is formed by G ₄ 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. 19 is a view showing a door body of the refrigerator of 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. 20 is a view showing the closed state of the refrigerator opened to G according to the present invention _max Schematic diagram of movement condition of side edge K in the process of more than 90 degrees;

fig. 21 is a schematic view showing an exploded structure of a lower end of a door body and a mounting block of the refrigerator of the present invention;

fig. 22 is an assembly schematic view of a lower end of a door body and a mounting block of the refrigerator of the present invention;

fig. 23 is a schematic view showing an exploded structure of a door body, a mounting block, and a hinge of the refrigerator of the present invention;

fig. 24 is an exploded view showing another view of a door body, a mounting block, a hinge of the refrigerator of the present invention;

fig. 25 is a schematic view showing the relative positions of the mounting block and the hinge plate in the closed state of the door of the refrigerator of the present invention;

fig. 26 is a schematic view showing the relative positions of the mounting block and the hinge plate when the door body of the refrigerator of the present invention is opened at a certain angle.

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 A guide groove 7; a first guide bar 8; a second guide bar 9; a first protrusion 34; a second protrusion 35; a clearance groove 36; a receiving groove 37; a door end cap 38; a stopper 41; a hooking gap 42; a third through hole 53; fourth through hole 54; a sleeve 55; a first fixed shaft 61; a second fixed shaft 62; a mounting block 80; a latch hook 82; root joint 83; a hooking portion 84; the plug board 85.

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.

In particular, the refrigerating apparatus may include an evaporator, a compressor, a condenser, and an expansion device, and cold air may be generated by using latent heat of evaporation of the refrigerant. 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 below the refrigerating compartment; as one configurable way, the refrigerator compartment is used to store food in a refrigerated mode by maintaining air at a temperature of about 0 to 5 ℃; the freezing chamber is used to store food in a freezing mode by maintaining air at a temperature of 0 to-30 deg.c. Note that, the arrangement of the plurality of storage compartments 20 of the refrigerator is not limited to the above exemplary description.

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 part of the door body 30, which is close to the hinge, is provided with a first guide strip 8 and a second guide strip 9 which are arranged in parallel, 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 groove 6 is located at the groove bottom 70 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.

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 triangular block 5 of the lux is engaged with 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 slot 6, and the triangular lux block 5 is adapted to the guide slot 7; wherein the side length of the regular triangle of the triangular block 5 is a, and the width of the guide groove 7 is equal to the side length of the regular triangle of the triangular block 5, namely, the width of the guide 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 embodiment of the present application, only the hinge shaft 4 and the triangular block 5 are provided on the hinge, and the positioning slot 6, the first guide bar 8, and the second guide bar 9 are provided on the door body 30. The arrangement of the hinge shaft 4, the lux triangular block 5, the positioning slot 6, the first guide bar 8, and the second guide bar 9 is not limited to the above arrangement on the hinge or the door 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 40, 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. Namely, in the projection of the plane of the top wall of the box body 10, the projections of the central lines of the two positioning grooves 6 at the upper end and the lower end of the door body 30 are completely overlapped, and the projections of the central lines of the two guide grooves 7 at the upper end and the lower end of the door body 30 are completely overlapped.

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, and the side of the reference plane M adjacent to the cabinet 100 is the outside, and the opposite side thereof adjacent to the storage compartment 20 is the inside. 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.

To meet the above requirements, the door 30 needs to be able to move inward during rotation so that the side edge K does not protrude too far beyond the side (reference plane M) of the case 10. Taking the hinge plate 40 disposed on the right side of the door 30 (in this example, the left side wall of the case 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 on the door body 30, the inner side is the right side, i.e., the door body 30 needs to be movable to the right side.

In this embodiment, the positioning groove 6 and the guiding groove 7 are respectively linear; that is, the positioning groove 6 and the guide groove 7 are each constituted by only a segment of a 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. The center trajectory of the positioning groove 6 is denoted as a trajectory S. The positioning groove 6 is defined by a shape formed by a section of linear groove, and the track line S is a straight line. Wherein the trajectory line S extends in a straight line from a side far from the door sidewall 32 to a side close to the door sidewall 32 so that the door body 30 can be moved in an inward (close to the second body sidewall) direction by a distance while rotating, thereby avoiding interference with the cabinet 100 when the door body 30 is opened.

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 are used as references, and the manner in which the hinge shaft 4 and the triangular 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 vertexes of the triangular 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 remote from the first body sidewall. The three sides of the triangular block 5 are denoted as leWherein (1)>Is arranged opposite to the third vertex C, the first vertex A and the second vertex 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 shaft 4 is disposed at the vertex angle where the triangular block 5 and the first vertex a are located. The configurable positioning center axis P is positioned on the line segment OA; 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 luxuriant 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 casing 10 increase in order. Namely, the hinge shaft 4 is arranged at the vertex angle of the first vertex A of the Lo triangle 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 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 the present embodiment, the third vertex C is located on a side of the first vertex a and the second vertex B near the first body sidewall. The hinge shaft 4 is disposed at the vertex angle of the lux triangle block 5 closest to the first vertex a of the box 10, so as to effectively ensure that the door 30 has a tendency of moving inwards during rotation when the door 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 C is a point of the lux triangle 5 closest to the first body sidewall, which effectively increases the angular range of inward movement during the rotation of the door body 30, and enables the door body 30 to maintain a tendency of inward movement during the rotation.

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 this embodiment, the hinge plate 40 is fixedly connected to the lux triangle 5 (the connection portion 401 of the hinge plate 40 is near the vertex angle of the lux triangle 5 corresponding to the first vertex a). In a plane parallel to the top wall of the box 10, the movement of the lux triangle 5 with respect to the guide slot 7 is equivalent to the movement of the hinge plate 40 with respect to the guide slot 7, as well as to the movement of the box 10 with respect to the door 30; whereas the movement of the axis OP of the triangular block 5 with respect to the guide groove 7 is equivalent to the movement of the triangular block 5 (hinge plate 40) with respect to the guide groove 7 of Yu Leluo; i.e. the movement of the axis line segment OP with respect to the guide groove 7 is equivalent to the movement of the case 10 with respect to the door 30; in the following description, for convenience of explanation, the movement of the positioning center axis P along the trajectory line S represents 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.

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.

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 Second positioning endpoint P _e At the first positioning end point P ₀ The trajectory S is defined by a first positioning point P near one side of the door sidewall 32 ₀ Extending along a straight line to a second positioning end point P toward a side adjacent to the door sidewall 32 _e 。

In the present embodiment, the distance between the track line S and the door front wall 31 is denoted as D ₁ The distance between the trajectory S and the door back wall 33 is denoted as D ₂ The method comprises the steps of carrying out a first treatment on the surface of the Wherein D is ₁ ＞D ₂ The method comprises the steps of carrying out a first treatment on the surface of the That is, the trajectory line S is closer to the door rear wall 33 than to the door front wall 31. Settable, D ₁ ：D ₂ E [1/3, 1), the external force applied to the door body 30 when the user opens the door body 30 mainly acts on one side of the door body 30 close to the door front wall 31 and far from the door side wall 32; the positioning groove 6 is close to the door front wall 31A door rear wall 33 is closed, so that the door body 30 is positioned close to the door rear wall 33 and close to the door side wall 32 when being opened, and the hinge shaft 4 is positioned, thereby ensuring the rotation and movement fluency and stability of the door body 30; while also ensuring the strength of the door body 30 and the positioning groove 6.

In this embodiment, 13 mm.ltoreq.D ₁ 17mm, in the present example, set D ₁ ＝15mm，D ₂ 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 box body 10 is smaller all the time during the door opening process, and specifically, in this embodiment, the maximum distance between the side edge K and the reference plane M of the box body 10 is smaller than 3mm during the door opening process of the door body 30.

In this embodiment, the positioning groove 6 is perpendicular to the door side wall 32; 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 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, in this embodiment, the door front wall 31 is perpendicular to the door side wall 32, and the positioning slot 6 is parallel to the door front 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 track line 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 thickness of the door body 30 is effectively utilized, so that the rotary sliding of the lux triangular block 5 relative to the guide groove 7 is smoother.

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 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. Above, through setting up hinge pin 4 on the lux triangle piece 5 fixed with hinge plate 40, the cooperation of hinge pin 4 and constant head tank 6 to the lux triangle piece 5 is driven by hinge pin 4, has increased the lateral displacement change volume of door body 30 in perpendicular to reference plane M for box 10, increases the distance that door body 30 moved to the inboard in the opening process, reduces the distance that door body 30 opened the in-process and surpassed reference plane M outside, effectively avoids door body 30 and cupboard 100 to take place to interfere.

As shown in fig. 5, in some embodiments of the application, when the door 30 is in the closed state, the central axis of the hinge shaft 4 (positioning central axis P) is located at the first positioning end point P of the track line S ₀ The third vertex C of the Lerlo triangle 5 is matched with the second guide strip 9;cooperating with the first guide strip 8.

As an alternative, when the door 30 is in the closed position, 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 relative positions of the hinge shaft 4 and the positioning slot 6, and the relative positions of the lux triangular block 5 and 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 central axis of the hinge axis 4 (positioning central axis P) is located at a first positioning end point P of the trajectory S away from the door sidewall 32 ₀ +.f. of the triangular block 5 of Lerlo>With the first guideThe orientation strips 8 are matched; the third vertex C of the lux triangle 5 cooperates with the second guide strip 9. In combination with FIG. 11->In this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order ₀ 、B ₀ 、C ₀ 、O ₀ Where it is located.

As shown in figure 6 of the drawings,when the door 30 is rotated from the closed state to G ₂ (excluding endpoint values); in the above opening procedure, the luxuriant piece 5 +.>Always cooperate with the first guide strip 8; the third vertex C of the lux triangle 5 always cooperates with the second guide strip 9.

The door body 30 is opened by the above angleIn the opening angle range, the fit relationship between the triangular Lerlow block 5 and the guide groove 7 is the same, always +.>The third vertex C cooperates with the first guide strip 8 and the second guide strip 9. The differences are only that: different opening angles +.>The point of engagement with the guide groove 7 is different. Thus, the opening angle +.>When in the inner state, one of the opening angles is selected to represent the relative positions of the Lerlo 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, in +.>Representing a position within the opening angle interval, for comparison with when the door body 30 is opened to other states.

Door 30 opens G ₁ When the central axis (positioning central axis P) of the hinge axis 4 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 11 of the drawings,in this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order ₁ 、B ₁ 、C ₁ 、O ₁ Where it is located.

As shown in figure 7 of the drawings,when the door body 30 is rotated to open to G ₂ The method comprises the steps of carrying out a first treatment on the surface of the The central axis of the hinge axis 4 (positioning central axis P) is located at the second displacement point P of the trajectory S ₂ Second displacement point P ₂ At the first positioning end point P ₀ One side adjacent to the door sidewall 32; the second vertex B of the triangular Lerlow block 5 is matched with the first guide strip 8; the third vertex C of the lux triangle 5 cooperates with the second guide strip 9. In combination with FIG. 12->In this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order ₂ 、B ₂ 、C ₂ 、O ₂ Where it is located. Wherein C is ₀ 、C ₁ 、C ₂ 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. 7, G ₂ ∈[28°，30°]The method comprises the steps of carrying out a first treatment on the surface of the That is, when the door body 30 is opened to the vicinity of 29 °, the second and third apexes B and C of the triangular block 5 are simultaneously matched with the groove walls (the first and second guide bars 8 and 9) of the guide groove 7And (5) combining.

As shown in figure 8 of the drawings,when the door body 30 is formed by G ₂ Rotate and open to G ₄ (excluding endpoint values); in the opening process, the second vertex 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 Lerlow triangular block 5 and the guide groove 7 is the same, and the second vertex B is always matched with the first guide strip 8; lerlo triangular block 5 +. >Is always engaged with the second guide strip 9. The differences are only that: different opening angles +.>The point of engagement with the guide groove 7 is different. Thus, the opening angle +.>When one of the opening angles is selected, the opening angle can represent the relative positions of the Lerlo 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; in particular, as shown in FIG. 8, to Represents the opening angle interval (G ₂ ，G ₄ ) In a position where the door 30 is opened to other statesAnd (5) comparing.

Door 30 opens 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 track line S ₃ Third displacement point P ₃ At the second displacement point P ₂ And a second positioning end point P _e Between them; in connection with figure 13 of the drawings,in this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order ₃ 、B ₃ 、C ₃ 、O ₃ Where it is located. As an embodiment, the door 30 opens G ₃ 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 ₃ ∈[62°，65°]The method comprises the steps of carrying out a first treatment on the surface of the I.e. when the door body 30 is opened to around 63 deg., there is a third center point C of the triangular block 5 of lux _m The second vertex B is simultaneously matched with the groove walls (first guide bar 8, second guide bar 9) of the guide groove 7.

As shown in the figure 9 of the drawings,when the door body 30 is rotated to open to G ₄ When the central axis of the hinge shaft 4 (positioning central axis P) is located at the second positioning end point P of the track line S _e The second vertex B of the triangular Lerlow block 5 is matched with the first guide strip 8; the first apex a of the triangular block 5 cooperates with the second guide strip 9. In connection with FIG. 14->In this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order _e 、B _e 、C _e 、O _e Where it is located. Wherein B is ₂ 、B ₃ 、B _e 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. The implementation isIn the example, G ₄ Approximately 90 °; specifically, G ₄ ∈[88°，92°]The method comprises the steps of carrying out a first treatment on the surface of the That is, when the door 30 is opened to the vicinity of 90 °, 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 first and second vertexes a and B of the triangular block 5 are simultaneously matched with the groove walls (the first and second guide bars 8 and 9) of the guide groove 7.

As shown in figure 10 of the drawings,when the door body 30 is formed by G ₄ 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 a of the lux triangle 5 always cooperates with the second guide strip 9.

As shown in fig. 10, 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 a of the lux triangle 5 always cooperates with the second guide strip 9. The differences are only that: different opening angles +.>The point of engagement with the guide groove 7 is different. Thus, the opening angle satisfies (G ₄ ，G _max ]When one of the opening angles is selected, the door 30 is opened to the corresponding section (G ₄ ，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; in particular, in->Represents the opening angle interval (G ₄ ，G _max ]The inner position, to compare when the door body 30 is opened to other states (other angle intervals).

Door 30 opens G _max Time (G) _max > 90 DEG), the central axis of the hinge axis 4 (positioning central axis P) is located at a fourth displacement point P of the trajectory 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 conjunction with figure 15 of the drawings,in this case, the first vertex A, the second vertex B, the third vertex C, and the guide center point O of the triangular block 5 are positioned in the guide groove 7 in this order ₄ 、B ₄ 、C ₄ 、O ₄ Where it is located. Wherein A is _e 、A ₄ 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 the preparation, the triangular block 5 of LerloThird mating point B of (2) _x Cooperating with the first guide strip 8. />

I.e. wherein 0 DEG < G ₁ ＜G ₂ ＜G ₃ ＜G ₄ ＜G _max The method comprises the steps of carrying out a first treatment on the surface of the 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 Second positioning end point P _e Which in turn are distributed along the track S.

In the present embodiment of the present invention,at the time, the fourth displacement point P ₄ At the third displacement point P ₃ And a second positioning end point P _e Between them. Is required toIt is noted that +.>Is different in size and has a fourth displacement point P ₄ At the third displacement point P ₃ Away from the second positioning end point P _e A side case. In the set +.>At the time, the fourth displacement point P ₄ At the third displacement point P ₃ And a second positioning end point P _e 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; the following describes the door 30 rotation opening process in detail:

as shown in fig. 16, the door body 30 is rotated from the closed state to be opened to G ₂ In the process of (2), the door body 30 passes through G from 0 DEG ₁ Open to G ₂ . In the process, the central axis of the hinge shaft 4 (positioning central 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 central axis of the hinge shaft 4 (positioning central axis P) is defined by a first positioning end point P ₀ Along the track line S through the first displacement point P ₁ To a second displacement point P ₂ . At the opening angle of the door body 30 not reaching G ₂ Before%Excluding interval end point angle G ₂ ) +.f. of the triangular block 5 of Lerlo>Always cooperate with the first guide strip 8 and the third vertex C of the lux triangle 5 always cooperates with the second guide strip 9. At the opening angle G of the door body 30 ₂ When the first guide strip 8 is matched with the second vertex B of the triangular Lerlow block 5; the third vertex C of the lux triangle 5 cooperates with the second guide strip 9.

In the above opening process, the positioning groove 6 and the guide are usedThe door body 30 is opened from 0 DEG to G by taking the groove 7 as a reference ₁ In the case of the axis line segment OP being defined by O ₀ P ₀ Rotated clockwise and moved outwardly to O ₁ P ₁ A place; the door body 30 is formed by G ₁ Open to G ₂ In the case of the axis line segment OP being defined by O ₁ P ₁ Rotated clockwise and moved outwardly to O ₂ P ₂ Where it is located. 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, the door body 30 is opened from a closed state to G ₂ Throughout the process, the lux triangle 5 (i.e., the case 10) remains rotated clockwise and moves outwardly relative 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) 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 case 10. I.e. when the door 30 is rotated from the closed state to G ₂ The door 30 rotates counterclockwise and moves inward with respect to the case 10 throughout the course of the process; i.e., the door body 30 is opened while being moved inward by a certain distance.

Specifically, as shown in fig. 17, the door 30 is formed of G ₂ Rotate and open to G ₄ In the process of (2), the door body 30 is formed by G ₂ Through G ₃ Open to G ₄ . In the process, the central axis of the hinge shaft 4 (positioning central axis P) is moved from the second displacement point P ₂ Moving along the track S in a direction approaching the door sidewall 32; specifically, the central axis of the hinge shaft 4 (positioning central axis P) is defined by a second displacement point P ₂ Along the track line S through the third displacement point P ₃ Move to the second positioning end point P _e . At the door body 30, G is used ₂ Rotate and open to G ₄ In the process of%Excluding interval end point angle G ₂ And G ₄ ) The second vertex B of the lux triangle 5 always cooperates with the first guide strip 8, lux triangle 5 +.>Is always engaged with the second guide strip 9. At the opening angle G of the door body 30 ₄ When the first guide strip 8 is matched with the second vertex B of the triangular Lerlow block 5; the first apex a of the triangular block 5 cooperates with the second guide strip 9.

In the opening process, the door body 30 takes the positioning groove 6 and the guide groove 7 as reference objects and the door body is formed by G ₂ Open to G ₃ In the case of the axis line segment OP being defined by O ₂ P ₂ Rotated clockwise and moved outwardly to O ₃ P ₃ A place; the door body 30 is formed by G ₃ Open to G ₄ In the case of the axis line segment OP being defined by O ₃ P ₃ Rotated clockwise and moved outwardly to O _e P _e Where it is located. 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 ₂ Open to G ₄ Throughout the process, the lux triangle 5 (i.e., the case 10) remains rotated clockwise and moves outwardly 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) ₂ Open to G ₄ 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 case 10. I.e. when the door 30 is rotated from the closed state to G ₂ The door 30 rotates counterclockwise and moves inward with respect to the case 10 throughout the course of the process; i.e., the door body 30 is opened while being moved inward by a certain distance.

The combined door body 30 is opened from the closed state to G ₂ Can be derived from the process of (a): the door body 30 is opened from the closed state to G ₄ 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 _e P _e A place; that is, the door 30 is used as a reference, and the door 30 is opened from the closed state to G ₄ Throughout the process, the lux triangle 5 always keeps rotating clockwise and moving outwards relative to the door body 30. Based on the relativity of the movement, the case 10 is used as a reference (i.e. the case is used as the reference for the luxThe corner block 5 is a reference object), the door body 30 is opened from a closed state to G ₄ During the whole process of approximately 90 deg., the door 30 rotates counterclockwise and moves inward relative to the case 10. I.e. when the door 30 is rotated from the closed state to G ₄ During the whole process of approximately 90 degrees, the door body 30 rotates anticlockwise and moves inwards relative to the box body 10; i.e., the door 30 is opened while being moved inward by a first distance. Wherein the first distance is from 0 DEG to G when the door 30 is opened ₄ The distance the door 30 moves.

In addition, in the present embodiment, when the door body 30 is rotated to be opened to 90 °, the door front wall 31 of the door body 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 shown in fig. 18, the door 30 is formed by G ₄ Rotate and open to G _max In the process of (2), the door body 30 is formed by G ₄ Open to G _max . In the process, the central axis of the hinge shaft 4 (positioning central axis P) is defined by the second positioning end point P _e Moving in a direction back along track S away from door sidewall 32; specifically, the central axis (positioning central axis P) of the hinge shaft 4 is defined by a second positioning end point P _e Withdraws along the track line S to the fourth displacement point P ₄ The method comprises the steps of carrying out a first treatment on the surface of the At the door body 30, G is used ₂ Rotate and open to G ₄ In the process of%Excluding interval end point angle G ₄ Including interval end point G _max ) The first vertex A of the triangular block 5 always cooperates with the first guide strip 8, the triangular block 5 +.>Is always engaged with the second guide strip 9.

In the opening process, the door body 30 takes the positioning groove 6 and the guide groove 7 as reference objects and the door body is formed by G ₄ Open to G _max In the case of the axis line segment OP being defined by O _e P _e Zhangshun (Chinese character)The hour hand rotates and moves inwards to O ₄ P ₄ Where it is located. 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: with the door 30 as a reference, the lux triangle 5 (i.e., the case 10) rotates clockwise and moves inward 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) ₄ Open to G _max The door 30 (i.e., the positioning groove 6 and the guide groove 7) rotates counterclockwise with respect to the case 10 and moves outward by a second distance.

To sum up, as shown in fig. 11 to 19, with the positioning slot 6 and the guide slot 7 as reference, the axis line OP (the connection line between the central axis of the hinge shaft 4 (positioning central axis P) and the center O of the triangular block 5) is rotated in the clockwise direction first by G ₄ And move 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 ) Then in the clockwise direction from G ₄ Rotated to G _max > 90 DEG and moved inward a second distance (from P _e O _e →P ₄ O ₄ ) The method comprises the steps of carrying out a first treatment on the surface of the Wherein the first distance > the second distance such that 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).

That is, if the hinge shaft 4 and the triangular block 5 are used as reference objects, the whole of the positioning slot 6 and the guide slot 7 is rotated in the counterclockwise direction G ₄ And move inwardly a first distance and then in a counterclockwise direction from G ₄ 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 At > 90 deg., the positioning slot 6 and the guiding slot 7 eventually move inwards a certain distance. In the present embodiment, the positioning groove 6 and the guide groove 7 are provided on the door body 30, that is, the door body 30 is opened to G with respect to the hinge fixed to the case 10 _max Throughout the process of > 90 deg., the door body 30 is always in relative to the initial state (closed state)Keeps moving inward a certain distance to effectively avoid touching the cabinet 100 during the opening of the door 30.

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 sidewall 32 (the door body 30 is opened from the closed state to G ₄ In the course of (2) the door 30 with the positioning groove 6 moves a certain distance away from the door sidewall 32 (inside), and the door 30 moves inward to avoid the side edge K from touching the cabinet 100 beyond the side of the cabinet 10 too much.

As shown in fig. 20, 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 _max The positions of the side edges K are sequentially positioned at K ₀ 、K ₁ 、K ₂ 、K ₃ 、K ₄ 、K ₅ 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 ₅ While the curve is located. 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 edges K move outwards for a certain distance and then keep moving inwards; and rotates to G at the door body 30 ₂ To G ₃ To a maximum position. In this embodiment, G ₂ ∈[28°，30°]，G ₃ ∈[62°，65°]It is found that the side edge K moves outward to the maximum point when the door body 30 rotates to open at an angle of 28 ° to 65 °; compared with the opening mode of the door body 30 rotating around the fixed shaft, the side edges K always move outwards in the process of opening 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, when the door 30 is closedState (0 °) rotary open to G _max In the process of > 90 DEG, the hinge shaft 4 is extended along the track line S from the first positioning end point P relative to the positioning groove 6 ₀ Moving in a direction toward the door sidewall 32 to the second positioning endpoint P _e Then by the second positioning end point P _e Withdraw to a direction away from the door sidewall 32 to a fourth displacement point P ₄ The method comprises the steps of carrying out a first treatment on the surface of the Simultaneously, the triangular Lerlow block 5 rotates clockwise and moves outwards for a first distance relative to the guide groove 7, and then rotates clockwise and moves inwards for a second distance; wherein the first distance > the second distance. I.e. the door body 30 is rotated from the closed state (0 deg.) to the open state G _max In the whole process of more than 90 DEG, the hinge shaft 4 firstly moves along the locating slot 6 from one end to the other end along a straight line, and then withdraws to move along the straight line; the triangular block 5 rotates clockwise and moves outwards with respect to the guide groove 7, and then rotates clockwise and moves inwards.

Wherein the door body 30 is opened from the closed state to G ₄ In the course of the hinge shaft 4 moving in a straight line in a direction approaching the door sidewall 32, the lux triangle 5 rotates and moves in a direction approaching the door sidewall 32, and the door body 30 always moves inward (in a direction approaching the second body sidewall) by a first distance.

The door body 30 is formed by G ₄ Open to maximum angle G _max In the course of (2), the hinge shaft 4 moves in a straight line in a direction away from the door sidewall 32, the lux triangle 5 rotates and moves in a direction away from the door sidewall 32, and the door body 30 moves outwardly a second distance.

That is, the door body 30 is opened to an opening angleWhen the door 30 is rotated, it is kept moving inward. Namely, the relative position of the hinge shaft 4 and the positioning slot 6 is shown as +.>The door body 30 is rotated and moved inward during the opening process in the initial state. So that when the door 30 is closed, the first, second and third vertexes A, B and C of the triangular block 5 are not only provided Is limited to being located at A in the present 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 positions of the three vertices of the triangular block 5 with respect to the door body 30 of Shi Leluo may be set to the positions of the three vertices 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.

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 mating portion is disposed at an end of the hinge away from the first body sidewall, and the mounting block 80 has a second mating portion, where the second mating portion is used to mate with the first mating portion to lock and unlock the door 30 and the box 10.

Specifically, in the present embodiment, the mounting block 80 provided at the lower end of the door body 30 is taken as an example. The door body 30 includes a door end cap 38, the door end cap 38 being provided 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 piece, which is integrally molded by injection molding, and the positioning groove 6 and the guiding groove 7 are formed thereon. As previously described, the guide groove 7 is defined by the first guide bar 8 and the second guide bar 9 in cooperation.

The door end cover 38 is provided with a receiving groove 37 at an adjacent position apart from the door side wall 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 a screw or the like.

In this embodiment, the second mating portion of the mounting block 80 is provided 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 toward 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.

The first matching part arranged on one side of the hinge plate 40 far away from the first body side wall is provided with a stop part 41, and a hooking gap 42 is formed on one side of the stop 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 stop part 41 is positioned in the lock hook 82, and the lock hook 82 on the door body 30 hooks the stop part 41 on the hinge plate 40, so that the door body 30 is locked, and the influence on the refrigerating and freezing effects of the refrigerator due to the fact that the door body 30 is not tightly closed is avoided; when the door body 30 is opened, the latch hook 82 is forced to deform to overcome the blocking of the stopper 41, thereby disengaging from the stopper 41.

The latch hook 82 may include a root 83 and a hooking portion 84. The root portion 83 is fixedly connected to the accommodation groove 37, and the hooking portion 84 is connected to the root portion 83 and bent toward the door rear wall 33 and the door side wall 32. The screw penetrates through the root connection portion 83 and is connected with the door body 30 to strengthen the connection strength of the root connection portion 83 and the door body 30, so that the latch hook 82 only deforms at the hooking portion 84 when being separated from the stop portion 41.

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

Referring to fig. 25 and 26, when the door 30 is closed from the open state, the free end of the hooking portion 84 gradually approaches the stopper 41 as the door 30 rotates and closes, and when the hooking portion 84 abuts against the stopper 41, the door 30 continues to close, the hooking portion 84 deforms under the action of the stopper 41, the stopper 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 to lock the door 30 with the case 10. When the door 30 is opened from the closed state, the process is opposite to the process of closing the door, and will not be described again. 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 °, the hooking portion 84 is separated from the stopper portion 41.

In some embodiments, the door body 30 may have a first protrusion 34 and a second protrusion 35 in the receiving groove 37, and a gap groove 36 is formed between the first protrusion 34 and the second protrusion 35; the first projection 34 is located approximately on the side of the second projection 35 adjacent to the door front wall 31 and the door side wall 32. The root portion 83 is formed with a plug plate 85, and the plug plate 85 is inserted into the clearance groove 36, so that deformation of the root portion 83 in a direction from the door front wall 31 to the door rear wall 33 can be avoided by the restriction of the first protrusion 34 and the second protrusion 35.

Specifically, the plug board 85 is provided as an arc board; 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 jointly define an arc-shaped clearance groove 36; the arcuate plate-like tab 85 mates with the arcuate slot 36. The above arc arrangement increases the limiting area of the gap groove 36 to the root joint 83, increases the connection strength of the mounting block 80 and the door body 30, and effectively limits the deformation of the root joint 83.

The installation block 80 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, and does not include a latch hook structure. Correspondingly, when the structure of the mounting block 80 is changed, the receiving groove 37 provided on the door body is adapted thereto to receive and fix the mounting block 80.

The mounting block 80 may be made of a POM material, and the POM has a characteristic of high abrasion resistance, so that the service life of the hinge can be prolonged. In addition, in this embodiment, the positioning groove 6, the guiding groove 7 and the locking hook are integrally formed to form the mounting block 80, so that the structural accuracy is increased, and the integrity and strength of the mounting block 80 are improved.

In addition, as shown in fig. 23 to 24, in the present embodiment, the hinge shaft 4 and the first fixing shaft 61 are provided on the extension 402 of the hinge plate 40; the apex angle of the triangular block 5 is provided with a third through hole 53, the third through hole 53 is positioned at the apex angle of the triangular block 5 corresponding to the second apex point 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 smaller than the depth of the third through hole 53; that is, the first fixing shaft 61 is accommodated in the third through hole 53, so that the first fixing shaft 61 is prevented from interfering with the door 30 to affect the relative movement of the door 30 with respect to the hinge.

Wherein the hinge shaft 4 is formed on the extension 402; the lux triangle block 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 hinge shaft 4 and the first fixed shaft 61 are arranged at two vertex angles of the triangular Lerlow block 5; the hinge shaft 4 is arranged in the shaft sleeve 55, and the shaft sleeve 55 is matched with the positioning slot 6 on the door end cover 38, so that the hinge shaft 4 is prevented from being worn; and after the shaft sleeve 55 is damaged, the repair can be carried out by replacing the lux triangular block 5 provided with the shaft sleeve 55, so that the repair is convenient.

The above, the triangular block 5 and the 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 embodiment, the extension 402 of the hinge plate 40 is further provided with a second fixing shaft 62; a fourth through hole 54 is provided at the apex angle of the lux triangle block 5. The fourth through hole 54 is located at a vertex angle of the le-triangle block 5 corresponding to the third vertex C, and the second fixing shaft 62 is installed in the fourth through hole 54. The hinge shaft 4, the first fixed shaft 61 and the second fixed shaft 62 are respectively arranged at three vertex angles of the triangular block 5; the hinge shaft 4 mates with a detent 6 on the door end cap 38. Wherein, the lux triangular 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 are easy to process and manufacture; the connecting strength and the integrity of the hinge and the luxury triangular block 5 are effectively improved, and the service life of the hinge and the luxury triangular block is effectively ensured. Wherein the height of the second fixing shaft 62 is smaller than the depth of the fourth through hole 54; that is, the second fixed shaft 62 is accommodated in the fourth through hole 54; to avoid interference of the second fixed shaft 62 with the door 30 from affecting the relative movement of the door 30 with respect to the hinge.

As another embodiment, the hinge shaft 4 is provided on the lux triangular block 5; the lux 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 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 Lorentz triangle block and a hinge shaft fixed with the Lorentz triangle block; wherein, one end of the hinge far away from the first body side wall is provided with a first matching part; the Lerlo triangle block comprises a first vertex A; the hinge shaft is positioned at the vertex angle where the first vertex A is positioned;

A door body having a door front wall adjacent to the case when the door body is closed, a door rear wall opposite to the door front wall, and 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 and is matched with two opposite groove walls of the guide groove; the guide groove is linear and extends along the direction from the front wall of the door to the rear wall of the door; the central line of the guide groove along the extending direction is parallel to the side wall of the door;

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

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

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

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

6. The refrigerator of claim 5, wherein: the second bulge is arranged as 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 locating slot is perpendicular to the door side wall.

8. The refrigerator of 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;

the Lerlo triangle block comprises a second vertex B and a third vertex C; the Lerlo triangular block is provided with a shaft sleeve and a third through hole; the shaft sleeve is positioned at the vertex angle where the first vertex A is positioned, and the third through hole is positioned at the vertex angle where the second vertex B is positioned;

9. The refrigerator of claim 8, wherein: a second fixed shaft on the hinge plate; a fourth through hole is formed in the Lerlow triangular block, and the fourth through hole is arranged at the vertex angle where the third vertex C is located; the second fixing shaft is accommodated in the fourth through hole.

10. The refrigerator of claim 8, wherein: 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.