CN115682522A

CN115682522A - Refrigerator with a door

Info

Publication number: CN115682522A
Application number: CN202111612379.8A
Authority: CN
Inventors: 张向平; 杨春; 郭动; 付婧
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2021-07-26
Filing date: 2021-12-27
Publication date: 2023-02-03
Also published as: CN115682521A; CN115680408A; CN115682520A; WO2023124619A1; CN115682519A; CN115680409A; CN115682523A; CN115682524A; CN115680411A

Abstract

The invention provides a refrigerator, and belongs to the technical field of household appliances. The refrigerator comprises a refrigerator body; the door body is movably connected with the box body so as to open or close the box body; the hinge assembly is connected between the box body and the door body and comprises a hinge shaft and a hinge groove which are mutually matched, the hinge shaft comprises a positioning shaft and a guide shaft, the hinge groove comprises a positioning groove and a guide groove, the extending direction of the positioning groove is parallel to the front surface of the box body when the door body is in a closed state, the positioning shaft moves towards the direction close to the side wall of the door body along the positioning groove in the opening and closing process of the door body, and the guide shaft moves along the guide groove so that the door body moves towards the inner side for a certain distance; further comprising: the limiting concave part is arranged on the hinge groove; and the elastic plunger is arranged on the hinge shaft, and the door body is rotated and stopped relative to the box body when the elastic plunger is clamped into the limiting concave part. The refrigerator is provided with a rotary stopping mechanism which can realize the rotary stopping of the door body.

Description

Refrigerator with a door

Technical Field

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

Background

In the related art, a door body of a refrigerator is connected with a refrigerator body of the refrigerator through a hinge, and the door body of the refrigerator can rotate through the hinge so as to open and close the refrigerator body of the refrigerator; after the door body of the refrigerator is opened, the door body can be automatically closed due to gravity center shift, and the door body cannot be kept in an opening state, so that people need to hold the door by one hand when using the refrigerator, and take and place food by the other hand, which brings inconvenience.

Disclosure of Invention

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

Therefore, the application aims to provide a refrigerator which is provided with a rotary stopping structure and can avoid the problem of automatic door closing.

A refrigerator according to the present application includes: a box body; the door body is movably connected with the box body to open or close the box body; the hinge assembly is connected between the box body and the door body and comprises a hinge shaft and a hinge groove which are matched with each other, the hinge shaft comprises a positioning shaft and a guide shaft, the hinge groove comprises a positioning groove and a guide groove, the extending direction of the positioning groove is parallel to the front surface of the box body when the door body is in a closed state, the positioning shaft moves towards the direction close to the side wall of the door body along the positioning groove in the opening and closing process of the door body, and the guide shaft moves along the guide groove so that the door body moves towards the inner side for a certain distance; further comprising: the limiting concave part is arranged on the hinge groove; and the elastic plunger is arranged on the hinge shaft, and when the elastic plunger is clamped into the limiting concave part, the door body is rotated and stopped relative to the box body.

In some embodiments of the refrigerator, the limiting concave part is arranged on the guide groove, and the elastic plunger is arranged on the guide shaft; or/and the limiting concave part is arranged on the positioning groove, and the elastic plunger is arranged on the positioning shaft.

In some embodiments of the refrigerator of the present application, the resilient plunger comprises: the supporting piece is provided with an accommodating cavity with one open end; the limiting convex part is arranged at the opening end of the accommodating cavity; the elastic piece is abutted between the cavity bottom of the accommodating cavity and the limiting convex part; when the elastic plunger is opposite to the limiting concave part, the limiting convex part is popped by the elastic piece and is clamped into the limiting concave part; when the elastic plunger piston is staggered with the limit concave part, the limit convex part compresses the elastic part.

In some embodiments of the refrigerator of the present application, when the elastic plunger is staggered with the limit recess, the limit projection is exposed from the support member and rolls along the hinge groove.

In some embodiments of the refrigerator of the present application, the positioning shaft is a support; or the supporting piece and the positioning shaft are connected in a two-body mode.

In some embodiments of the refrigerator, the opening of the accommodating cavity faces the bottom of the hinge groove, and the limiting recess is arranged at the bottom of the hinge groove.

In some embodiments of the refrigerator, the elastic member is in a compressed state when the limit convex part is clamped into the limit concave part.

In some embodiments of the refrigerator, the positioning shaft moves back and forth in the positioning groove in the process that the door body is opened to the maximum angle from the closed state, and the guide shaft moves from one end of the guide groove to the other end of the guide groove.

In some embodiments of the refrigerator of the present application, the positioning groove is located between a front end of the guide groove and a side wall of the door body; when the door body is opened to a first angle from a closed state, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall of the door body and far away from the side wall relative to the guide groove, so that the door body moves outwards for a certain distance; when the door body is continuously opened from the first angle to the second angle, the second angle is less than 90 degrees, the positioning shaft moves towards the direction close to the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall and close to the side wall relative to the guide groove, so that the door body moves towards the inner side for a certain distance; when the door body is continuously opened to 90 degrees from the second angle, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall and close to the side wall relative to the guide groove, so that the door body moves towards the outside.

In some embodiments of the refrigerator, when the door body is continuously opened from 90 degrees to a third angle, the positioning shaft moves towards a direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards a direction far away from the front wall and close to the side wall relative to the guide groove; when the door body is continuously opened to the maximum angle from the third angle, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction close to the front wall and close to the side wall relative to the guide groove.

Drawings

Fig. 1 is a view of an external appearance of a refrigerator of an embodiment of the present invention;

fig. 2 is a partial view of a cabinet of a refrigerator according to an embodiment of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2;

FIG. 4 is an enlarged view of B of FIG. 2;

fig. 5 is a view of a door of a refrigerator according to an embodiment of the present invention;

FIG. 6 is an enlarged view of FIG. 5 taken along line C;

fig. 7 is a view of a spin-stop mechanism of a refrigerator in a retracted state according to an embodiment of the present invention;

fig. 8 is a view of a spin-stop mechanism of a refrigerator according to an embodiment of the present invention in an extended state;

fig. 9 is a sectional view of an elastic plunger of the refrigerator according to the first embodiment of the present invention;

fig. 10 is a view of an elastic plunger of a refrigerator according to a second embodiment of the present invention;

fig. 11 is a view of a hinge plate of a refrigerator according to a first embodiment of the present invention;

fig. 12 is a partial view of a door body of a refrigerator according to a first embodiment of the present invention at a hinge slot;

fig. 13 is a view of a hinge plate of a refrigerator according to a second embodiment of the present invention;

fig. 14 is a partial view of a door body of a refrigerator according to a second embodiment of the present invention at a hinge slot;

fig. 15 is a view of a hinge plate of a refrigerator according to a third embodiment of the present invention;

fig. 16 is a partial view of a door body of a refrigerator according to a third embodiment of the present invention at a hinge slot;

fig. 17 is a view of a spin-stop mechanism of a refrigerator according to an embodiment of the present invention at a 0 ° position of a door body;

fig. 18 is a view of the spin-stop mechanism of the refrigerator of the embodiment of the present invention at a 45 ° open position of the door body;

fig. 19 is a view of a spin-stop mechanism of a refrigerator according to an embodiment of the present invention at a 90 ° open position of a door body;

fig. 20 is a view of a hinge plate of a refrigerator according to a fourth embodiment of the present invention;

fig. 21 is a partial view of a door body of a refrigerator according to a fourth embodiment of the present invention at a hinge slot;

fig. 22 is an exploded view of an elastic plunger and a hinge plate of the refrigerator in accordance with the first embodiment of the present invention;

fig. 23 is a sectional view of an elastic plunger and a hinge plate of a refrigerator according to a second embodiment of the present invention;

fig. 24 is a sectional view of a hinge assembly of a spin-stop mechanism of a refrigerator according to an embodiment of the present invention, the hinge assembly being provided at an upper end;

fig. 25 is a view of the spin-stop mechanism of the refrigerator in accordance with the embodiment of the present invention at the maximum insertion opening position of the door body;

fig. 26 is a plan view of a refrigerator according to a first embodiment of the present invention;

FIG. 27 is an enlarged view of FIG. 26 taken along line D;

fig. 28 is a view of the door of the refrigerator in a first angular state according to the first embodiment of the present invention;

fig. 29 is a view of the door of the refrigerator in a second angular state according to the first embodiment of the present invention;

fig. 30 is a view of the door of the refrigerator in a 90 ° state according to the first embodiment of the present invention;

fig. 31 is a view of the door of the refrigerator in a third angular state according to the first embodiment of the present invention;

fig. 32 is a view of the door of the refrigerator in the maximum normal open state according to the first embodiment of the present invention;

fig. 33 is a view of a hinge slot of a refrigerator according to a second embodiment of the present invention;

FIG. 34 is a view of a door of a refrigerator in a first angular state according to a second embodiment of the present invention;

FIG. 35 is a view of a door of a refrigerator according to a second embodiment of the present invention at a second angle;

fig. 36 is a view of a door of a refrigerator according to a second embodiment of the present invention in a 90 ° state;

fig. 37 is a view of a door of a refrigerator according to a second embodiment of the present invention in a third angular state;

fig. 38 is a view of a door of a refrigerator in a maximum normal open state according to a second embodiment of the present invention;

fig. 39 is a view of a hinge slot of a refrigerator according to a third embodiment of the present invention;

fig. 40 is a view of a door of a refrigerator in a maximum normal open state according to a third embodiment of the present invention;

fig. 41 is a view of a hinge slot of a refrigerator according to a fourth embodiment of the present invention;

FIG. 42 is a view of a door of a refrigerator according to a fourth embodiment of the present invention in a first angular state;

FIG. 43 is a view of a door of a refrigerator according to a fourth embodiment of the present invention at a second angle;

fig. 44 is a view of a hinge slot of a refrigerator according to a fifth embodiment of the present invention;

fig. 45 is a view of a door of a refrigerator according to a fifth embodiment of the present invention in a first state;

fig. 46 is a view of a door of a refrigerator according to a fifth embodiment of the present invention in a second state;

fig. 47 is a view of a door of a refrigerator according to a fifth embodiment of the present invention in a 90 ° state;

FIG. 48 is a view of a refrigerator door according to a fifth embodiment of the present invention in a maximum normal open state;

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, a side of the refrigerator facing a user when in use is defined as a front side, and an opposite side is defined as a rear side.

Referring to fig. 1, a refrigerator according to an embodiment of the present invention includes a cabinet 1 and a door 2. The upper and lower ends of the door body 2 are connected to the cabinet 1 by hinge assemblies 3, respectively, so that the cabinet 1 can be opened or closed by the hinge assemblies 3.

Referring to fig. 2 to 6, the hinge assembly 3 includes a hinge shaft 31 and a hinge slot 32 which are engaged with each other to open and close the door body 2.

The hinge assembly 3 includes a hinge plate 33 mounted on the cabinet 1 by means such as screw coupling; the hinge plate 33 includes a connection portion 331 connected to the case 1, and an extension portion 332 extending forward from the connection portion 331.

The hinge shaft 31 is disposed on the extension 332 and extends vertically. For the hinge assembly 3 at the upper end of the door body 2, the hinge shaft 31 extends downward from the lower surface of the extension portion 332, and for the hinge assembly 3 at the lower end of the door body 2, the hinge shaft 31 extends upward from the upper surface of the extension portion 332.

The hinge slot 32 is provided on the door body 2. In the assembled state, the extension 332 of the hinge plate 33 is positioned above the hinge slot 32 and the hinge shaft 31 is inserted into the hinge slot 32.

It should be noted that, as will be understood by those skilled in the art, the positions of the hinge shaft 31 and the hinge slot 32 can be interchanged, that is, the hinge shaft 31 is disposed on the door body 2, and the hinge slot 32 is correspondingly disposed on the hinge plate 33, and still achieve the object of the present invention.

The refrigerator can include the mechanism 7 that stops soon that sets up between flap 33 and door body 2, can realize the stall of door body 2 through stopping mechanism 7 soon, avoids the automatic door closing of door body 2 and influences user's use experience.

Referring to fig. 7 to 9, the spin-stop mechanism 7 includes an elastic plunger 71 and a stopper recess 72, and when the elastic plunger 71 is caught in the stopper recess 72 during rotation of the door 2, the door 2 is rotated and stopped with respect to the cabinet 1.

The elastic plunger 71 may be a ball plunger structure, and includes: a support member 711, an elastic member 712, and a limit protrusion 713.

The supporting member 711 may have a shaft shape, and is provided with a receiving cavity with an open end, the limiting protrusion 713 is located at the open end of the receiving cavity, and the elastic member 712 is located between the bottom of the receiving cavity and the limiting protrusion 713. The limiting protrusion 713 is able to extend and retract relative to the supporting member 711 by the elastic member 712, and the rotation stop of the door 2 is realized when the limiting protrusion 713 extends out and is engaged in the limiting recess 72.

In particular, with combined reference to fig. 10, the support 711 may have an external thread, thereby facilitating the mounting connection of the resilient plunger 71; the elastic member 712 may be a spring, which has a large elastic range and a long service life.

The convex stopper 713 may be formed in a ball shape so that friction between the convex stopper 713 and other parts may be reduced. Correspondingly, the limiting concave part 72 can be a spherical groove, and the spherical form fit is beneficial to the limiting convex part 713 sliding into the limiting concave part 72 and the limiting convex part 713 sliding out of the limiting concave part 72, so that the smoothness of the rotation stop and the continuous rotation of the door body 2 is increased.

The resilient plunger 71 has an extended state and a retracted state. As shown in fig. 7, in the retracted state, the convex stopper 713 compresses the elastic member 712 and retracts, and in this state, the convex stopper 713 is staggered with the concave stopper 72; as shown in fig. 8, the protruding portion 713 protrudes and is caught in the recessed portion 72.

Illustratively, referring to fig. 7, the elastic plunger 71 is fixed to the hinge plate 33, and the stopper recess 72 is provided in the door body 2. When the elastic plunger 71 is staggered with the limit concave part 72, the rotary opening and closing action of the door body 2 is not influenced; referring to fig. 8, when the elastic plunger 71 faces the stopper recess 72, the elastic plunger 71 is caught in the stopper recess 72, so that the door body 2 is rotated and stopped. When a slight force is applied to the door 2 again, the elastic plunger 71 is separated from the limit concave part 72 and is changed into a retraction state, and the door 2 can rotate normally.

It should be noted that, as can be understood by those skilled in the art, the positions of the elastic plunger 71 and the limiting recess 72 can be interchanged, that is, the elastic plunger 71 is disposed on the door body 2, and the limiting recess 72 is correspondingly disposed on the hinge plate 33, and still achieve the object of the present invention.

According to the refrigerator, the rotary stopping mechanism 7 is arranged between the hinge plate 33 and the door body 2, so that the rotary stopping function of the door body 2 is realized, and the problem that the door body 2 can be automatically closed under the action of gravity after being opened in the related art is solved.

In some embodiments of the present invention, referring to fig. 11 and 12, the hinge assembly 3 is a single-axis hinge, and the door body 2 performs only a rotational motion with respect to the body 1 by the single-axis hinge 3. In this case, the rotation stopping mechanism 7 is provided separately from the hinge shaft 31 and the hinge slot 32.

The following description will be made by taking an example in which the elastic plunger 71 is fixedly connected to the hinge plate 33 and the stopper recess 72 is provided in the door body 2:

the door body 2 is provided with an arc groove 20 taking the hinge groove 32 as a circle center, a limiting concave part 72 is arranged in the arc groove 20, and the elastic plunger 71 is inserted in the arc groove 20; when the door body 2 is rotated to be opened and closed, the elastic plunger 71 moves relative to the arc groove 20, and when the elastic plunger 71 is staggered with the limiting concave part 72 in the arc groove 20, the elastic plunger 71 is in a retraction state, so that the door body 2 is not limited in rotation; when the elastic plunger 71 is opposed to the stopper recess 72 in the circular arc groove 20, the elastic plunger 71 is in an extended state, the stopper protrusion 713 is caught in the stopper recess 72, and the door 2 is rotated and stopped.

In other embodiments of the present invention, referring to fig. 13 to 21, the hinge assembly 3 is a biaxial hinge, and under the action of the biaxial hinge, the door body 2 can move laterally during the rotation opening and closing process, so that the door body 2 can be opened and closed without touching the cabinet when the refrigerator is embedded into the cabinet for use. In this case, the spin-stop mechanism 7 may be coupled to the hinge assembly. The spin-stop mechanism 7 of the present invention is suitable for a biaxial hinge structure in the related art.

According to an embodiment of the present invention, the biaxial hinge has a first hinge member including the positioning shaft 41 and the positioning groove 50 which are fitted to each other, and a second hinge member including the guide shaft 42 and the guide groove 60 which are fitted to each other. The positioning shaft 41 moves in the positioning groove 50, and the guide shaft 42 moves in the guide groove 60, so that the door 2 can move laterally while rotating.

As a first embodiment of the positioning of the twist-stop mechanism 7 on the hinge assembly: with particular reference to fig. 13 and 14, the spin-stop mechanism 7 may be disposed on the first hinge member, i.e., the resilient plunger 71 is disposed on the positioning shaft 41, and the limit recess 72 is disposed in the positioning groove 50.

In the biaxial hinge, because the positioning shaft 41 and the positioning groove 50 are matched to mainly play a role in orientation, and the guide shaft 42 and the guide groove 60 are matched to mainly play a role in guide, generally, the length of the positioning shaft 41 is greater than that of the guide shaft 42, and the diameter of the positioning shaft 41 is greater than that of the guide shaft 42, which is more favorable for the stability of the installation and operation of the door body.

The positioning shaft 41 is longer, so that the displacement of the elastic plunger 71 in the telescopic movement can be set to be larger, and the rotary stop of the door body 2 under the action of the rotary stop mechanism 7 is more stable.

The positioning shaft 41 is thick, so that the diameter of the elastic plunger 71 can be set to be larger, the matching area of the limiting convex part 713 and the limiting concave part 72 is larger, and the rotation stop of the door body 2 under the action of the rotation stop mechanism 7 is more stable.

As a second embodiment of the positioning of the spin-stop mechanism 7 on the hinge assembly: referring to fig. 15 and 16, the spin-stop mechanism 7 may be provided on the second hinge member, that is, the elastic plunger 71 is provided on the guide shaft 42, and the limit recess 72 is provided in the guide groove 60.

In the biaxial hinge, since the positioning shaft 41 and the positioning groove 50 are mainly combined for orientation, and the guide shaft 42 and the guide groove 60 are mainly combined for guidance, the guide groove 60 is usually longer than the positioning groove 50. Because the guide groove 60 is long, it is relatively beneficial to arrange the limiting concave part 72 at a plurality of positions in the extending direction of the guide groove 60 at the same time, for example, the limiting concave part 72 can be arranged at the positions of the door body 2 at 0 °, 45 °, 90 °, the maximum angle, and the like.

For convenience of description, the position of the hinge shaft 31 at the hinge slot 32 when the door body 2 is in the closed state is defined as a 0 ° position (as shown at 70a in fig. 17), specifically, the position of the guide shaft 42 at the guide slot 60 is the 0 ° position of the guide slot 60, and the position of the positioning shaft 41 at the positioning slot 50 is the 0 ° position of the positioning slot 50. By analogy, the position of the hinge shaft 31 in the hinge slot 32 when the door body 2 is in the 45 ° open state is the 45 ° open position (as shown at 70b in fig. 18); the position of the hinge shaft 31 in the hinge slot 32 is a 90 ° opening position (as shown at 70c in fig. 19) when the door body 2 is in a 90 ° opening state; the position of the hinge shaft 31 in the hinge slot 32 when the door body 2 is in the maximum opening angle state is the maximum normal opening position.

Because the guide slot 60 is long, and its 0 degree position, 45 degrees open position, … … etc. are comparatively dispersed, therefore, more conveniently set up spacing concave part 72 in a plurality of positions in guide slot 60, and constant head tank 50 is shorter, and its each angular position is comparatively gathered together, is unfavorable for setting up spacing concave part 72 simultaneously in a plurality of positions.

In addition, from the stress angle, when the door is pulled by a hand, the force is firstly transmitted to the second hinge piece, and the second hinge piece drives the door body 2 to displace, so that the spin-stopping mechanism 7 is arranged on the second hinge piece, a better stress effect can be generated, and the door can be timely rotated and stopped and rotated again.

As a third embodiment of the positioning of the twist-stop mechanism 7 on the hinge assembly: referring to fig. 20 and 21, the spin-stop mechanism 7 can be provided on both the first hinge member and the second hinge member, so that this embodiment can have the advantages of both embodiments: the limiting concave parts 72 can be arranged at a plurality of positions of the guide groove 60, so that the door body 2 can be rotatably stopped at a plurality of angles, and the door body 2 can be more stably rotatably stopped because the positioning shaft 41 is provided with the thicker/longer elastic plunger 71.

In the above embodiment, the elastic plunger 71 is provided on the hinge shaft 31, and the stopper recess 72 is provided in the hinge slot 32. When the hinge shaft 31 moves in the hinge slot 32, the elastic plunger 71 moves along with the hinge shaft 31, in the process, the rotation stop mechanism 7 does not influence the action of the door body 2 when the elastic plunger 71 is staggered with the limiting concave part 72, when the door body 2 moves to a state that the elastic plunger 71 is opposite to the limiting concave part 72, the limiting convex part 713 is clamped in the limiting concave part 72, and at the moment, if no external force acts on the door body 2, the door body 2 can rotate and stop under the limiting action of the elastic plunger 71 and the limiting concave part 72; if an external force acts on the door body 2, the acting force of the continued movement of the door body 2 overcomes the resistance of the elastic plunger 71, so that the limit protrusion 713 of the elastic plunger 71 compresses the elastic member 712 to retract, and the continued movement of the door body 2 is not affected.

Regarding the first embodiment of the manner in which the elastic plunger 71 is attached on the hinge shaft 31:

referring to fig. 22, a mounting hole 310 is provided on the hinge shaft 31, and the elastic plunger 71 is mounted in the mounting hole 310.

Specifically, one end of the mounting hole 310 is open, and the open end faces the bottom of the hinge slot 32, and accordingly, the bottom of the hinge slot 32 is provided with the limit recess 72.

In the embodiment of the present invention, the spin-stop mechanism 7 may be provided on the hinge assembly 3 at the upper end of the door body 2, and/or on the hinge assembly 3 at the lower end of the door body 2.

For the hinge assembly 3 with the spin-stop mechanism 7 arranged at the upper end of the door body 2, the mounting hole 310 is opened downwards on the hinge shaft 31, and the bottom of the hinge slot 32 is the bottom of the hinge slot 32. The elastic plunger 71 may be installed in the installation hole 310 by means of a screw connection such that the limit protrusion 713 of the elastic plunger 71 is located at the bottom end of the hinge shaft 31, the limit protrusion 713 is stopped by the bottom of the hinge slot 32 during the movement of the hinge shaft 31 with respect to the hinge slot 32 to compress the elastic member 712 upward, and is in a retracted state, and when the hinge shaft 31 moves to the limit recess 72, the limit protrusion 713 is ejected by the elastic force of the elastic member 712 due to the lowering of the position of the limit recess 72 on the hinge slot, so that the limit protrusion 713 enters the limit recess 72 and is in an extended state.

For the hinge assembly 3 with the spin-stop mechanism 7 arranged at the lower end of the door body 2, the opening of the mounting hole 310 on the hinge shaft 31 faces upwards, and the bottom of the hinge slot 32 is the top of the hinge slot 32. The limit protrusion 713 of the elastic plunger 71 is located at the top end of the hinge shaft 31, and the limit protrusion 713 compresses the elastic member 712 downward by the gravity of the door body 2 during the movement of the hinge shaft 31 relative to the hinge slot 32.

In the case that the elastic plunger 71 is in the extended state and the elastic member 712 is in the natural state, when the spin-stop mechanism 7 is disposed on the hinge assembly at the upper end of the door body 2, there is a phenomenon that the elastic plunger 71 is not completely clamped into the limiting recess 72 due to assembly error, so that the elastic plunger 71 is easily separated from the limiting recess 72 to make the spin-stop of the door body 2 unstable. In the present invention, when the elastic plunger 71 is in the extended state, the elastic member 712 is still in the compressed state, so that the elastic member 712 can push the limit protrusion 713 to be clamped into the limit recess 72, thereby increasing the stability of the engagement between the two.

When the rotation stopping mechanism 7 is arranged on the hinge assembly 3 at the lower end of the door body 2, the elastic plunger 71 is subjected to the action of gravity of the door body 2, so that the stress of the elastic plunger is stable in the movement process, the stability that the limiting convex part 713 is clamped into the limiting concave part 72 can be ensured, and the door body 2 can be more stably rotated and stopped.

According to some embodiments of the present invention, the elastic plunger 71 may be installed perpendicular to the axis of the hinge shaft 31, that is, the limit protrusions 713 are located at the sidewalls of the hinge shaft 31 in a telescopic direction perpendicular to the axis of the hinge shaft 31; accordingly, the stopper recess 72 is provided on the side wall of the hinge slot 32, and the object of the present invention can be also achieved.

Regarding the second embodiment of the manner in which the elastic plunger 71 is attached on the hinge shaft 31:

unlike the above-described embodiment, referring to fig. 23, the hinge shaft 31 may simultaneously serve as the support 711 of the elastic plunger 71, and the elastic member 712 and the limit protrusion 713 are directly mounted on the hinge shaft 31. Thus, a structure of the supporting member 41 can be omitted, the structure at the hinge shaft 31 can be simplified, and the product cost can be reduced.

According to some embodiments of the present invention, referring to fig. 24, in general, a certain gap is reserved between the vertical upper door body 2 and the upper and lower hinge plates in order to facilitate the installation of the door body 2. Due to the gravity of the door body 2 itself, the door body 2 contacts the hinge plate 33 at the lower end thereof, and a gap H1 is generated between the door body 2 and the hinge plate 33 at the upper end thereof, that is, a gap H1 is generated between the top of the hinge slot 32 and the hinge plate 33.

When the refrigerator is transported and dropped during transportation, the door body 2 can move upwards to impact the hinge plate 33 at the upper end. To avoid this, in the embodiment of the present invention, the limit concave portion 72 of the whirl-stop mechanism 7 is provided at the 0 ° position of the hinge groove 32, and the upward movement limit distance of the limit convex portion 713 is H2, H2 < H1. Like this, on the one hand, the cooperation of elasticity plunger 71 and spacing concave part 72 can make door body 2 keep in the closed position, has reduced door body 2 and has received in the transportation and rock and open the risk, and on the other hand, when door body 2 upwards drunkenness, because spacing convex part 713 upward movement limit distance H2 is less than H1, can effectively prevent when falling door body 2 and collide hinge plate 33.

According to an embodiment of the present invention, when the limit projection 713 is in the retracted state, the elastic member 712 may be in the limit compression state, and the limit projection 713 is exposed to the open end of the supporting member 711. With the arrangement, on one hand, when the door body 2 moves upwards to press the limit convex part 713 upwards, the limit convex part 713 cannot retract into the support part 711 to cause impact of the door body on the hinge shaft 31, on the other hand, the limit convex part 713 is always exposed out of the support part 711 to ensure that the limit convex part is always in rolling contact with the hinge groove 32, so that the moving friction when the hinge shaft 31 is in contact with the hinge groove 32 is reduced, and meanwhile, the rolling moving mode increases the moving smoothness of the hinge assembly 3 when the door body 2 is opened and closed.

The biaxial hinge is designed to meet the requirement of the refrigerator for being embedded into a cabinet, and normally, the biaxial hinge structure is arranged so that the door body 2 does not touch the cabinet in the process of opening and closing at least 90 degrees. In a refrigerator having a part with a biaxial hinge, the door body 2 does not touch the cabinet even when opened > 90 °. Therefore, the refrigerator has a maximum opening angle of about 90 ° when the refrigerator is inserted into the cabinet for use, and the position of the hinge shaft 31 at the hinge slot 32 when the refrigerator is inserted into the cabinet for use and the door body 2 is opened to the maximum opening angle is defined as a maximum insertion opening position (as shown at 70d in fig. 25).

In some embodiments of the present invention, in order to prevent the refrigerator from colliding with the cabinet when the refrigerator is inserted into the cabinet for use and the door 2 continues to move in the opening direction under the inertia effect when the door 2 is opened to the maximum insertion opening position, the present invention sets the limiting concave portion 72 at the maximum insertion opening position of the hinge slot 32, so that when the door 2 is opened to the maximum insertion opening position, the door 2 is stopped at the maximum insertion opening position due to the elastic plunger 71 being inserted into the limiting concave portion 72, and the door 2 is effectively prevented from colliding with the cabinet. In this embodiment, the rotation stopping mechanism 7 can be disposed on the first hinge member and the second hinge member at the same time, and the rotation stopping mechanisms 7 at the two positions work together to increase the reliability of the rotation stopping of the door body 2 at the maximum embedding opening position. However, in other embodiments, the spin-stop mechanism 7 may also be provided only on the first hinge part or the second hinge part.

Several biaxial motion trajectories are described below:

first motion track

Referring to fig. 26 and 27, the positioning groove 50 extends in a direction parallel to the front surface of the cabinet 1 when the door 2 is in the closed state.

< first stage > referring to fig. 28, when the door 2 is opened from the closed state to the first angle, the positioning shaft 41 moves from the first positioning position 51 to the second positioning position 52 with respect to the positioning groove 50, and simultaneously the guide shaft 42 moves from the first guide position 61 to the second guide position 62 with respect to the guide groove 60. The second positioning position 52 is further from the side wall 21 than the first positioning position 51, and the second guiding position 62 is further from the front wall 22 and further from the side wall 21 than the first guiding position 61. Note that, when the door body 2 is in the closed state, a side surface close to the hinge assembly is a side wall 21, a front surface of the door body 2 is a front wall 22, and a junction between the side wall 21 and the front wall 22 is an angular edge 23.

Since the positioning shaft 41 moves in a direction (inward) away from the side wall 21 from the first positioning position 51 to the second positioning position 52, the positioning groove 50 moves outward relative to the door body 2. Therefore, in the first stage of the present embodiment, the door 2 moves outward immediately after opening. It should be noted that, a plane on which a side surface of the box body 1 close to the hinge assembly is located is defined as a reference plane O, the reference plane O is taken as a boundary, one side where the box body is located is an inner side, and the other side is an outer side.

In general, when the refrigerator is used while being placed in the cabinet 100, the cabinet is generally disposed with a certain gap α (as shown in fig. 26) from a side surface (reference plane O) of the refrigerator in order to prevent the unevenness of the floor of the user and the deformation of the cabinet. In the present embodiment, the distance between the first positioning position 51 and the second positioning position 52 is relatively small, that is, the door body 2 moves slightly outward in the first stage. Since the angular edge 23 of the door 2 just after opening is extremely small beyond the reference plane O, the door 2 does not interfere with the cabinet even if it moves slightly outward.

In this stage, the door body 2 is set to move slightly outward, the first guide track line 612 extends in a direction away from the front wall 22 and away from the side wall 21, so that the transition point between the first guide track line 612 and the second guide track line 623 in the second stage can be relatively smooth, and the movement smoothness of the door body 2 is improved.

In addition, the first guide track line 612 extends towards the direction away from the front wall 22 and the side wall 21, so that the included angle between the first guide track line 612 and the movement track line of the positioning shaft 41 is increased, and the door body 2 is ensured not to shake in the movement process.

In other embodiments, the second positioning position 52 may be closer to the side wall 21 than the first positioning position 51, and the second guiding position 62 may be farther from the front wall and closer to the side wall 21 than the first guiding position 61. Thus, the door 2 moves inward immediately after opening.

< second stage > referring to fig. 29, when the door 2 is continuously opened from the first angle to the second angle, the positioning shaft 41 is moved from the second positioning position 52 to the third positioning position 53 with respect to the positioning groove 50, and simultaneously the guide shaft 42 is moved from the second guide position 62 to the third guide position 63 with respect to the guide groove 60. The third positioning location 53 is closer to the side wall 21 than the second positioning location 52 (and the first positioning location 51); the third guiding position 63 is further away from the front wall 22 and closer to the side wall 21 than the second guiding position 62.

Since the positioning shaft 41 moves in a direction (outward) toward the side wall 21 from the second positioning position 52 to the third positioning position 53, it corresponds to the door 2 moving the positioning groove 50 inward. Therefore, in the second stage of the present embodiment, the door body 2 rotates while moving inward for a certain distance, so that the corner edge 23 moves inward relative to the reference plane O, and collision of the corner edge 23 with the cabinet 100 is avoided.

In some embodiments of the present invention, the distance over which the door 2 moves laterally in a unit angle of rotation in the first stage is μ 1, the distance over which the door 2 moves laterally in a unit angle of rotation in the second stage is μ 2, and μ 1 is less than μ 2, that is, the amplitude of the lateral movement in the first stage of just opening the door 2 is relatively small, so that it is possible to prevent the door seal on the rear surface of the door 2 from rubbing against the front surface of the box 1 due to the relatively large lateral movement distance in the unit angle of rotation when the door 2 is just opened. In addition, if the distance of the lateral movement of the rotating unit angle is large when the door body 2 is just opened, the hand feeling and the smoothness of the opening of the door can be affected, and therefore the lateral movement distance of the door body 2 can be set to be small when the door body is just opened.

Specifically, the slope of the first guide trajectory line 612 may be greater than the slope of the second guide trajectory line 623 (the slopes described herein are all absolute values). The larger the inclination is set, the smaller the distance the door body rotates by a unit angle and moves laterally.

If the door body 2 moves laterally inward in the first stage and the second stage, and the curvature of the movement track line of the guide shaft in the two stages needs to be changed, a sharp point may be generated at the connection position of the first guide track line 612 and the second guide track line 623 to influence the hand feeling of opening the door, so that the door body 2 is arranged to move laterally outward in the first stage, and the connection position of the first guide track line 612 and the second guide track line can be slightly smooth.

In some embodiments of the present invention, an included angle between the second guiding track line 623 and the movement track line of the positioning shaft 41 is greater than 45 °, so as to avoid the problem of shaking when the movement trends of the two shafts are approximately parallel, and ensure that the door body 2 does not shake during the movement process.

< third stage > referring to fig. 30, when the door body is further opened from the second angle to the 90 ° state, the positioning shaft 41 is moved from the third positioning position 53 to the fourth positioning position 54, and the guide shaft 42 is moved from the third guide position 63 to the fourth guide position 64. The fourth location 54 is further from the side wall 21 than the third location 53; the fourth guiding position 64 is further away from the front wall 22 and closer to the side wall 21 than the third guiding position 63.

Since the positioning shaft 41 moves in a direction (inward) away from the side wall 21 from the third positioning position 53 to the fourth positioning position 54, the positioning groove 50 is moved outward by the door 2. Therefore, in the third stage, the door 2 is moved outward while being rotated and opened.

Since the door 2 has already passed a dangerous period of time during the second stage, the door 2 does not touch the cabinet even if it moves outward. In addition, the outward movement can also reduce the shielding of the door body 2 to the storage chamber, thereby avoiding the limitation of the door body 2 to the drawer in the storage chamber to be drawn out.

In some embodiments, when the door 2 is in the 90 ° open state, the front wall 22 may be flush with the reference plane O, so as to reduce the space occupied by the door 2 in front of the storage compartment as much as possible, thereby avoiding the influence of the door 2 on the extraction of drawers and the like in the storage compartment.

In other embodiments, when the door 2 is in the 90 ° open state, the door 2 is located on the inner side of the reference plane O as a whole, i.e. there is a gap between the front wall 22 of the door 2 and the reference plane O, so that the door 2 will not interfere with the cabinet even if the door is opened by a certain angle from 90 °, and the refrigerator of the present invention can be opened by more than 90 ° when being embedded into the cabinet for use.

< fourth stage > referring to fig. 31, when the door body is continuously opened from 90 ° to the third angular state, the positioning shaft 41 moves from the fourth positioning position 54 to the fifth positioning position 55, the guide shaft 42 moves from the fourth guide position 64 to the fifth guide position 65, and the fifth positioning position 55 is farther from the side wall 21 than the fourth positioning position 54; the fifth guide position 65 is farther from the front wall 22 and closer to the side wall 21 than the fourth guide position 64, and the door body 2 moves upward and leftward. The third angle is the maximum angle at which the door 2 can be opened when the refrigerator is inserted into the cabinet.

< fifth stage > referring to fig. 32, when the door 2 is further opened from the third angle to the maximum angle, the positioning shaft 41 moves from the fifth position 55 to the sixth positioning position 56, the guide shaft 42 moves from the fifth guide position 65 to the sixth guide position 66, the sixth positioning position 56 is farther from the side wall 21 than the fifth positioning position 55, the sixth guide position 66 is closer to the front wall 22 and the side wall 21 than the fifth guide position 65, and the door 2 moves to the upper left.

Second motion profile

Referring to fig. 33, unlike the above embodiment, the positioning groove 50 includes a first groove section 501 and a second groove section 502 having different extending directions. The first channel section 501 extends in the direction of the side wall 21 with reference to the inner to the outer direction, and the second channel section 502 is connected to the end of the first channel section 501 and extends in the direction of the side wall 21 near the front wall 22. The guide slot 60 is a generally curved slot extending away from the front wall 22 and closer to the side wall 21. In other embodiments, the rear portion of the positioning groove 50 may also be in the form of a linear groove, and part or all of the guide groove 60 may also be in the form of a linear groove.

First stage > referring to fig. 34, when the door 2 is opened from the closed state to the first angle, the guide shaft 42 moves from the first guide position 61 to the second guide position 62, and the guide causes the positioning shaft 41 to move from the first positioning position 51 to the second positioning position 52, the second positioning position 52 is closer to the side wall 21 than the first positioning position 51, and the second guide position 62 is farther from the front wall 22 and closer to the side wall 21 than the first guide position 61, so that the door 2 moves inward by the first distance while rotating.

< second stage > referring to fig. 35, when the door body 2 is continuously opened from the first angle to the second angle, the positioning shaft 41 is moved from the second positioning position 52 to the third positioning position 53, and simultaneously the guide shaft 42 is moved from the second guide position 62 to the third guide position 63, the third positioning position 53 is closer to the side wall 21 than the second positioning position 52, and the third guide position 63 is closer to the side wall 21 and farther from the front wall 22 than the second guide position 62, so that the door body 2 is moved inward by the second distance while rotating, and the door body 2 is continuously moved inward, so that the angular edge 23 is moved inward relative to the reference plane O, and the collision of the angular edge 23 with the cabinet 100 is avoided.

In the first stage, the motion locus of the guide shaft 42 relative to the guide groove 60 is a first guide locus line 612; in the second stage, the movement locus of the guide shaft 42 relative to the guide groove 60 is the second guide locus line 623.

The connection between the first guide track line 612 and the second guide track line 623 has a trend change point, so that the inward movement distance d of the door body 2 in the unit opening angle is different between the first stage and the second stage, and the inward movement distance d of the unit angle of the first stage is slightly smaller than that of the second stage.

Specifically, the distance that the door body 2 moves inward by a unit angle in the first stage is μ 1, the distance that the door body 2 moves inward by a unit angle in the second stage is μ 2, and μ 1 < μ 2, that is, the inward movement amplitude in the first stage of just opening the door body 2 is relatively small, so that it is possible to prevent the door seal on the rear surface of the door body 2 from generating lateral friction with the front surface of the box body 1 due to a relatively large inward movement distance in the unit angle when the door body 2 just opens.

< third stage > referring to fig. 36, when the door 2 is continuously opened from the second angle to 90 °, the positioning shaft 41 moves from the third positioning position 53 to the fourth positioning position 54, while the guide shaft 42 moves from the third guide position 63 to the fourth guide position 64, the fourth positioning position 54 is closer to the side wall 21 and the front wall 22 than the third positioning position 53, and the fourth guide position 64 is closer to the side wall 21 and away from the front wall 22 than the third guide position 63, so that the door 2 moves inward by a third distance while rotating, and the door 2 continues to move inward.

The door body 2 is moved towards the inner side all the time from the closing state to the 90-degree opening process, so that the door body 2 is positioned on the inner side of the reference plane O in the 90-degree state, the door body 2 can be continuously opened to more than 90 degrees to touch the cabinet, the opening angle of the door body of the refrigerator placed in the cabinet in use is increased, and a user can take and place food more conveniently.

< fourth stage > referring to fig. 37, when the door 2 is continuously opened from 90 ° to the third angle. The positioning shaft 41 is moved from the fourth positioning position 54 to the fifth positioning position 55, while the guide shaft 42 is moved from the fourth guide position 64 to the fifth guide position 65. Fifth locating position 55 is closer to side wall 21 and front wall 22 than fourth locating position 54, and fifth guiding position 65 is closer to side wall 21 and further from front wall 22 than fourth guiding position 64.

In this phase, the third angle is slightly greater than 90 °, about 105 °. The door 2 can be opened further to a third angle without touching the cabinet.

< fifth stage > referring to fig. 38, when the door 2 is continuously opened from the third angle to the maximum angle, the guide shaft 42 moves from the fifth guide position 65 to the sixth guide position 66, so that the positioning shaft 41 moves back from the fifth positioning position 55 to the sixth positioning position 56. The sixth positioning location 56 is located between the fifth positioning location 55 and the third positioning location 53; the sixth guiding position 66 is further away from the front wall 22 and closer to the side wall 21 than the fifth guiding position 65.

When the door body 2 is opened by more than 90 degrees, the angular edge 23 of the door body 2 is located on the inner side of the reference plane O, the positioning shaft 41 moves in the direction far away from the front wall 22 and the side wall 21, which is equivalent to the door body 2 driving the positioning groove 50 to move in the direction close to the reference plane O, namely, the angular edge 23 of the door body 2 moves towards the outside, so that the problem that the door body 2 continues to move towards the inside to occupy the front space of the storage chamber and further causes the drawer and the like in the storage chamber to be blocked by the door body 2 and cannot be drawn out can be avoided.

Third motion profile

Referring to fig. 39, the difference from the second motion profile is that: the end of the guide slot 60 is bent forward, i.e., the sixth guide position 66 is closer to the front wall than the fifth guide position 65, so that the positioning shaft 41 is not retracted in the positioning slot 50.

Since the first to fourth stages of this embodiment have substantially the same trend as the second motion trajectory, the description thereof is omitted.

< fifth stage > referring to fig. 40, when the door 2 is continuously opened from the third angle to the maximum angle, the positioning shaft 41 moves from the fifth positioning position 55 to the sixth positioning position 56; the guide shaft 42 moves from the fifth guide position 65 to the sixth guide position 66. Sixth locating position 506 is closer to side wall 21 and to front wall 22 than fifth locating position 55; sixth guide position 606 is closer to side wall 21 and to front wall 22 than fifth guide position 65.

Fourth motion profile

The difference between the second and third motion trajectories is that: referring to fig. 41, when the door 2 is in the closed state, the positioning groove 50 further includes a third groove section 503 connected to the inner side of the first groove section 501, i.e., the positioning groove 50 generally includes the inner third groove section 503, the middle first groove section 501 and the outer second groove section 502. The door 2 at the stage of just opening is different from the two embodiments in correspondence to the change of the shape of the inner side of the positioning groove 50, and the same portions as those in the third stage to the fifth stage of the above-mentioned trajectory will not be described again.

Referring to fig. 42, when the door 2 is opened from the closed state to the first angle, the positioning shaft 41 moves from the seventh positioning position 57 to the eighth positioning position 58, and the guide shaft 42 moves from the seventh guide position 67 to the eighth guide position 68. Eighth locating position 58 is closer to side wall 21 and further from front wall 22 than seventh locating position 57, and eighth guiding position 68 is further from front wall 22 and closer to side wall 21 than seventh guiding position 67. The positioning shaft 41 moves in a direction close to the side wall 21 (outer side) and away from the front wall 22 (rear side), that is, the positioning groove 50 moves in the inner and front directions relative to the positioning shaft 41, so that the door body 2 rotates and moves a distance in the inner and front directions; the door body 2 moves inwards, namely the angular edge 23 is driven inwards, so that the collision between the angular edge 23 and the cabinet 100 is avoided; the door 2 moves to the front side to prevent the door seal on the door 2 from rubbing against the front surface of the cabinet 1 while moving inward.

< second stage > referring to fig. 43, when the door 2 is opened from the first angle to the second angle, wherein the first angle < the second angle < 90 °, the positioning shaft 41 moves from the eighth positioning position 58 to the third positioning position 53, and simultaneously the guiding shaft 42 moves from the eighth guiding position 68 to the seventh guiding position 67; the third positioning position 53 is closer to the side wall 21 than the eighth positioning position 58, and a connecting line between the third positioning position 53 and the eighth positioning position 58 is parallel to the front surface of the cabinet 1 when the door body 2 is in the closed state, and the third guiding position 63 is closer to the side wall 21 than the eighth guiding position 68 and is far away from the front wall 22, so that the door body 2 moves inward for a certain distance while rotating, the door body 2 continues to move inward, and the angular edge 23 moves inward relative to the reference plane O, thereby avoiding collision between the angular edge 23 and the cabinet 100.

Fifth motion profile

Referring to fig. 44, the positioning groove 50 and the guide groove 60 are both curved grooves.

< first stage > referring to fig. 45, when the door 2 is opened from the closed state to the first state, the positioning shaft 41 is moved from the first positioning position 51 to the second positioning position 52 with respect to the positioning groove 50; at the same time, the guide shaft 42 moves relative to the guide groove 60 from the first guide position 61 to the second guide position 62. The second positioning position 52 is far away from the front wall 22 and close to the side wall 21 than the first positioning position 51, and the second guiding position 62 is far away from the front wall 22 and close to the side wall 21 than the first guiding position 61, so that the positioning shaft 41 moves towards the side wall 21 and away from the front wall 22 by a first distance, which is equivalent to the door body 2 with the positioning groove 50 moves towards the side wall 21 (inner side), and towards the front wall 22 (front side), and the door body 2 moves towards the inner side, which can prevent the side edge 33 from exceeding the side surface of the cabinet 1 too much and touching the cabinet; because the right rear end of the door body 2 rotates backwards relative to the positioning shaft 41 when the door body 2 is just opened, the door seal on the door body 2 has the phenomenon of contact friction with the front side surface of the box body 1 along with the inward movement of the door body 2, and the door body 2 is arranged to move forwards in the invention, so that the friction between the door seal and the front side surface of the box body 1 can be avoided, and the service life of the door seal is prolonged.

< second stage > referring to fig. 46, when the door 2 is continuously opened from the first state to the second state, which is less than 90 °, the positioning shaft 41 is moved from the second positioning position 52 to the third positioning position 53 with respect to the positioning groove 50, and the guide shaft 42 is moved from the second guide position 62 to the third guide position 63 with respect to the guide groove 60. The third positioning position 53 is closer to the front wall 22 and the side wall 21 than the second positioning position 52, and the third guide position 63 is farther from the front wall 22 and closer to the side wall 21 than the second guide position 62, so that the door body 2 moves a second distance inward.

< third stage > referring to fig. 47, when the door 2 is opened to 90 ° from the second state, the door 2 only performs a rotational movement, the position of the positioning shaft 41 in the positioning groove 50 is not changed, the door 2 rotates around the positioning shaft 41, and the guide shaft 42 moves in the guide groove 60 along an arc to the fourth guide position 64.

< fourth stage > referring to fig. 48, when the door 2 is continuously opened from 90 °, the positioning shaft 41 is moved from the third positioning position 53 to the fourth positioning position 54 with respect to the positioning groove 50, and the guide shaft 42 is moved from the fourth guide position 64 to the fifth guide position 65 with respect to the guide groove 60. Wherein the fourth location 54 is closer to the front wall 22 and the side wall 21 than the third location 53; the fifth guiding position 65 is closer to the front wall 22 and the side wall 21 than the fourth guiding position 64.

It should be noted that, in the above descriptions of several motion trajectories, "the first angle", "the second angle", … …, etc. are only used to distinguish the change of the opening angle of the door body 2 under each motion trajectory; the "first positioning position", "second positioning position", … …, etc. are only for distinguishing the change of the position of the positioning shaft 41 relative to the positioning groove 50 under each motion trajectory; the "first guide position", the "second guide position" … …, and the like are merely for distinguishing the change in the position of the guide shaft 42 relative to the guide groove 50 for each movement locus; the same code "first angle", "first positioning position", "first guiding position" … … and the like under different motion trajectories may be different. For example, the first angle in the first motion profile and the first angle in the second motion profile may not be the same.

The above motion trajectories are only some examples of the biaxial hinge, and the spin-stop mechanism 7 of the present invention can be applied to all types of biaxial hinge structures.

In some embodiments, the spin-stop mechanism 7 may be disposed at a closing position of the door body 2.

Specifically, the elastic plunger 71 of the spin-stop mechanism 7 may be disposed on the positioning shaft 41, and the limit recess 72 is disposed at the 0 ° position of the positioning groove 50; or/and, the resilient plunger 71 may be disposed on the guide shaft 42 with the limit recess 72 disposed at the 0 ° position of the guide groove 60.

When the door body 2 is closed, the positioning shaft 41 is located at the first positioning position 51 of the positioning groove 50 under the first motion track, the second motion track, the third motion track and the fifth motion track combined in the specific tracks; the guide shaft 42 is located at a first guide position 61 of the guide groove 60. The first positioning position 51 is the 0 ° position of the positioning slot 50, and the first guiding position 61 is the 0 ° position of the guiding slot 60. Therefore, the first positioning position 51 and/or the first guiding position 61 is provided with a limiting recess 72.

Under the fourth motion trajectory, when the door body 2 is closed, the positioning shaft 41 is located at a seventh positioning position 57 of the positioning groove 50; the guide shaft 42 is located at a seventh guide position 57 of the guide groove 60. The seventh positioning position 57 is the 0 ° position of the positioning slot 50, and the seventh guiding position 57 is the 0 ° position of the guiding slot 60. Therefore, a limit recess 72 is provided at the seventh positioning location 57 and/or the seventh guiding location 57.

The rotary stopping mechanism 7 is arranged at the closing position of the door body 2, so that the closing of the door body 2 can be assisted, and the phenomenon that the door body 2 is opened due to incomplete closing is avoided. In addition, the limit of the compression limit range of the elastic member 712 in the rotation stopping mechanism 7 (H2 < H1) can also prevent the door body 2 from jumping up to impact the hinge plate 33 when the door body is dropped during transportation.

In some embodiments, the spin-stop mechanism 7 may be disposed at a 90 ° open position of the door body 2.

Specifically, the elastic plunger 71 is provided on the positioning shaft 41, and the stopper recess 72 is provided at the 90 ° open position of the positioning groove 50; or/and, the elastic plunger 71 is provided on the guide shaft 42, and the limit recess 72 is provided at the 90 ° open position of the guide groove 60.

In the above movement trajectories, when the door body 2 is at the 90 ° position, the positioning shaft 41 is located at the fourth positioning position 54, and the guide shaft 42 is located at the fourth guide position 64. The fourth positioning position 54 is a 90 ° open position of the positioning groove 50, and the fourth guide position 64 is a 90 ° open position of the guide groove 60. Therefore, a limit recess 72 may be provided at the fourth positioning location 54 and/or the fourth guiding location 64.

The rotary stopping mechanism 7 is arranged at the 90-degree opening position of the door body 2, so that the door body 2 can be stopped at 90-degree rotation, the influence on the user to take and place food caused by the automatic closing of the door body 2 is avoided, and the door body 2 can be prevented from being continuously opened to collide with a cabinet.

In some embodiments, the spin-stop mechanism 7 may be disposed at the maximum angular position at which the door 2 can be opened when the refrigerator is inserted into a cabinet.

Specifically, the elastic plunger 71 is provided on the positioning shaft 41, and the stopper recess 72 is provided at the maximum insertion opening position of the positioning groove 50; or/and, the elastic plunger 71 is provided on the guide shaft 42, and the limit recess 72 is provided at the maximum insertion opening position of the guide groove 60.

In the first four movement traces, when the door 2 is in the third opened angle state, the positioning shaft 41 is located at the fifth positioning position 55, and the guide shaft 42 is located at the fifth guide position 65. The fifth positioning position 55 is the maximum insertion opening position of the positioning groove 50, and the fifth guide position 65 is the maximum insertion opening position of the guide groove 60. Therefore, a stopper recess 72 may be provided at the fifth positioning position 55 and/or the fifth guide position 65.

The rotary stopping mechanism 7 is arranged at the third angle position of the door body 2, so that the door body 2 can be rotatably stopped at the third angle position, the door body 2 is prevented from being automatically closed to influence a user to take and place food, and the door body 2 can be prevented from being continuously opened to collide a cupboard.

In some embodiments, the spin-stop mechanism 7 may be disposed at the maximum angular position of the door body 2 (not used in an embedded cabinet).

In the first four movement traces, when the door body 2 is at the maximum opening angle in the normal use state, the positioning shaft 41 is located at the sixth positioning position 56, and the guide shaft 42 is located at the sixth guide position 66. The sixth positioning position 56 is the maximum normal open position of the positioning slot 50, and the sixth guiding position 66 is the maximum normal open position of the guiding slot 60. Thus, a stop recess 72 may be provided at the sixth positioning location 56 and/or the sixth guiding location 66.

In the fifth movement path, when the door 2 is at the maximum opening angle in the normal use state, the positioning shaft 41 is located at the fourth positioning position 54, and the guide shaft 42 is located at the fifth guide position 65. Therefore, the stopper recess 72 may be provided at the fourth positioning position 54 and/or the fifth guide position 65.

The rotary stopping mechanism 7 is arranged at the maximum angle position of the door body 2, so that the door body 2 can be stopped at the maximum angle position in a rotary mode, the door body 2 is prevented from being automatically closed to influence a user to take and place food, and the auxiliary limiting effect can be achieved when the door body 2 reaches the maximum opening position.

In some embodiments, the spin-stop mechanism 7 may be disposed at a transition point of the hinge assembly 3. The transition point is a point where the direction of the movement tendency of the hinge shaft 31 changes in the hinge slot 32. That is, the connection point of two slot segments in the hinge slot 32, for example, the connection point of the first slot segment 501 and the second slot segment 502 of the positioning slot 50 in the second and third motion trajectories, the connection point of the first slot segment 501 and the second slot segment 502 of the positioning slot 50 in the fourth motion trajectory, and the connection point of the third slot segment 503 and the first slot segment 501 of the positioning slot 50 in the fourth motion trajectory are transition points, and the direction of the motion trend of the hinge shaft 31 moving to these transition points will be changed.

After the upper and lower hinge assemblies of the door body 2 are assembled, assembly errors inevitably exist, and at the moment, the door body 2 is easy to move, block and wear the hinge grooves 32. Therefore, an installation gap is usually reserved between the hinge shaft 31 and the hinge slot 32 to avoid the problems of motion jamming of the door body 2 and abrasion of the hinge slot 32 due to assembly errors.

In general, the clearance between the guide shaft 42 and the guide groove 60 is 0.1 to 0.2mm, and the clearance between the positioning shaft 41 and the positioning groove 50 is 0 to 0.1mm. When the hinge shaft 31 moves to the transition point of the hinge slot 32, the trend of the motion curve changes and the transition part has a round angle, and the door body 2 can rock at the position to influence the hand feeling of opening the door.

Therefore, the rotary stopping mechanism 7 is arranged at the transition point of the hinge groove 32, so that the door body 2 is in rotary stopping at the transition point, and the problem of poor door opening hand feeling caused by the shaking of the door body 2 can be reduced.

Specifically, the spin-stop plunger 71 of the spin-stop mechanism 7 is provided on the positioning shaft 41, and the limit recess 72 is provided at the transition point of the positioning groove 50.

In some embodiments, spin-stop mechanism 7 may be disposed at a speed break point of hinge assembly 3. The speed abrupt change point is a position point at which the movement speed of the hinge shaft 31 in the hinge slot 32 abruptly changes. For example, in the fifth motion trajectory, when the door body 2 is opened from the first state to the second state, the door body 2 rotates and moves laterally; when the door body 2 is continuously opened to 90 degrees from the second state, the door body only rotates and does not transversely move any more; when the door body 2 is opened from 90 degrees, the door body rotates and moves transversely. Namely, the door body 2 is stopped suddenly and only rotates around the positioning shaft by rotating and transversely moving in the moving process, and then is converted into rotating and transversely moving, and two times of sudden changes of the moving speed occur. Accordingly, the positioning shaft 41 has a sudden change of the movement speed at the third positioning position 53 of the positioning slot 50, and the third positioning position 53 is a speed sudden change point.

The process of the movement of the positioning shaft 41 changing from stationary to moving and vice versa (only described herein with respect to the lateral movement of the positioning shaft 41), the movement speed of the positioning shaft 41 suddenly changes to 0, the speed change generates acceleration, and the acceleration generates force. The force generated by the acceleration is counteracted by the side wall of the positioning groove 50, so that the positioning shaft 41 and the positioning groove 50 are abraded, and after long-time use, the increase of abrasion clearance can cause the door body 2 to shake at a speed abrupt change point or even to be locked by movement.

Therefore, in the embodiment of the present invention, the spin-stop mechanism 7 is disposed at the speed abrupt change point, so that the force generated by the speed abrupt change is resisted by the spin-stop mechanism 7, thereby reducing the force applied to the positioning shaft 41 and the positioning groove 50; meanwhile, as the position of the positioning shaft 41 is unchanged, the limiting convex part 713 and the limiting concave part 72 resist the speed abrupt force, and the stability of the rotating motion can be improved.

Specifically, the spin-stop plunger 71 of the spin-stop mechanism 7 is provided on the positioning shaft 41, and the limit recess 72 is provided at the third positioning position 53 (speed discontinuity) of the positioning groove 50.

According to the application, the rotary stopping mechanism 7 is arranged between the door body 1 and the box body 1, when the elastic plunger 71 of the rotary stopping mechanism 7 is staggered with the limiting concave part 72, the opening and closing of the door body 2 are not influenced, when the elastic plunger 71 is opposite to the limiting concave part 72, the elastic plunger 71 is clamped into the limiting concave part 72 to realize the rotary stopping of the door body 1, and therefore the phenomenon that the door body 1 is automatically closed to influence the food material taking and placing operation of a user is avoided.

According to the application, the rotation stopping mechanism 7 is arranged on the first hinge part (the positioning shaft 41 and the positioning groove 50) of the hinge assembly, and the positioning shaft 41 is larger in diameter and longer in length, so that the telescopic distance of the elastic plunger 71 is increased, the contact area of the elastic plunger 71 and the limiting concave part 72 is increased, and the rotation stopping stability of the door body 2 is improved.

According to the present application, the spin-stop mechanism 7 is disposed on the second hinge member (the guide shaft 42 and the guide groove 60) of the hinge assembly, and since the guide groove 60 is generally long, the spin-stop mechanism 7 can be disposed at a plurality of positions in the extending direction of the guide groove 60, thereby satisfying the requirement of spin-stopping the door body 2 at a plurality of positions.

According to the application, the rotary stopping mechanism 7 is arranged at the closing position of the door body 2, so that the door body 2 can be prevented from being stressed and opened in the transportation process to generate collision, and the telescopic range H2 of the limiting convex part 713 is smaller than the distance H1 between the hinge plate 33 and the hinge groove 32, so that the door body 2 can be prevented from jumping up to impact the hinge plate 33 in the transportation and falling process.

According to the application, the rotary stopping mechanism 7 is arranged at the 90-degree opening position of the door body 2 or the maximum opening position when the door body is embedded into a cabinet, so that the rotary stopping of the door body 2 at the position can be realized, and the door body 2 is prevented from being automatically closed and colliding with the cabinet.

According to the application, the rotation stopping mechanism 7 is arranged at the transition point of the hinge assembly 3, so that the door body 2 can be prevented from shaking when passing through the transition point.

According to the application, the rotation stopping mechanism 7 is arranged at the speed sudden change point of the hinge assembly 3, so that the stress abrasion of the hinge shaft 31 and the hinge groove 32 can be avoided, the service life is prolonged, and the stability of opening and closing of the door body 2 is ensured.

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

Claims

1. A refrigerator, characterized by comprising:

a box body;

the door body is movably connected with the box body so as to open or close the box body;

the hinge assembly is connected between the box body and the door body and comprises a hinge shaft and a hinge groove which are matched with each other, the hinge shaft comprises a positioning shaft and a guide shaft, the hinge groove comprises a positioning groove and a guide groove, the extending direction of the positioning groove is parallel to the front surface of the box body when the door body is in a closed state, the positioning shaft moves towards the direction close to the side wall of the door body along the positioning groove in the opening and closing process of the door body, and the guide shaft moves along the guide groove so that the door body moves towards the inner side for a certain distance;

further comprising:

the limiting concave part is arranged on the hinge groove;

and the elastic plunger is arranged on the hinge shaft, and when the elastic plunger is clamped into the limiting concave part, the door body is rotated and stopped relative to the box body.

2. The refrigerator according to claim 1, wherein the limiting recess is provided on the guide groove, and the elastic plunger is provided on the guide shaft; and the limiting concave part is arranged on the positioning groove, and the elastic plunger is arranged on the positioning shaft.

3. The refrigerator according to claim 1 or 2, wherein the elastic plunger includes:

the supporting piece is provided with an accommodating cavity with one open end;

the limiting convex part is arranged at the opening end of the accommodating cavity;

the elastic piece is abutted between the cavity bottom of the accommodating cavity and the limiting convex part;

when the elastic plunger is opposite to the limiting concave part, the limiting convex part is popped by the elastic piece and clamped into the limiting concave part; when the elastic plunger is staggered with the limit concave part, the limit convex part compresses the elastic part.

4. The refrigerator of claim 3, wherein when the elastic plunger is staggered with the stopper recess, the stopper protrusion exposes the supporter and rolls along the hinge groove.

5. The refrigerator of claim 3, wherein the hinge shaft is the supporter; or the supporting piece and the hinge shaft are connected in a two-body mode.

6. The refrigerator as claimed in claim 3, wherein the receiving chamber is opened toward a bottom of the hinge slot, and the stopper recess is provided at the bottom of the hinge slot.

7. The refrigerator according to claim 3, wherein the elastic member is in a compressed state when the restriction convex portion is caught in the restriction concave portion.

8. The refrigerator according to claim 1, wherein the positioning shaft moves back and forth in the positioning groove and the guide shaft moves from one end to the other end of the guide groove in a process that the door body is opened from a closed state to a maximum angle.

9. The refrigerator according to claim 1, wherein the positioning groove is positioned between a front end of the guide groove and a side wall of the door body;

when the door body is opened to a first angle from a closed state, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall of the door body and far away from the side wall relative to the guide groove, so that the door body moves outwards for a certain distance;

when the door body is continuously opened from the first angle to the second angle, the second angle is less than 90 degrees, the positioning shaft moves towards the direction close to the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall and close to the side wall relative to the guide groove, so that the door body moves towards the inner side for a certain distance;

when the door body is continuously opened to 90 degrees from a second angle, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction far away from the front wall and close to the side wall relative to the guide groove, so that the door body moves towards the outside.

10. The refrigerator as claimed in claim 9, wherein when the door is opened from 90 ° to a third angle, the positioning shaft moves away from the side wall relative to the positioning groove, and the guide shaft moves away from the front wall and closer to the side wall relative to the guide groove;

when the door body is continuously opened to the maximum angle from the third angle, the positioning shaft moves towards the direction far away from the side wall relative to the positioning groove, and the guide shaft moves towards the direction close to the front wall and the side wall relative to the guide groove.