CN115682603A

CN115682603A - Refrigerator with a door

Info

Publication number: CN115682603A
Application number: CN202110995989.4A
Authority: CN
Inventors: 鲍雨锋; 张向平; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2021-07-26
Filing date: 2021-08-27
Publication date: 2023-02-03
Also published as: CN115682598A; CN115682601A; CN115682604A; CN115682602A; CN115682596A; CN115682605A; CN115682595A; CN115682599A; CN115682600A; CN115680404A; CN115680403A

Abstract

The invention provides a refrigerator, and belongs to the technical field of household appliances. The refrigerator comprises a refrigerator door, a first groove and a second groove, wherein the refrigerator door is provided with a door shell and a bulge part vertically extending from the door shell to the interior of the refrigerator door; the thickness of the door shell is recorded as H1, and the minimum wall thickness between the first groove and the second groove is recorded as H2, then H2= (0.5-1) H1; when the refrigerator door is rotated and opened from a closed state to a first state, the moving track of the first shaft relative to the first groove is a first straight line segment and a first curve segment, and the moving track of the second shaft relative to the second groove is a second straight line segment and a second curve segment; the first straight line section extends towards the direction of keeping away from the antetheca, being close to the lateral wall for the refrigerator door moves first distance to the inboard, moves a distance to the front side, and first curve section extends towards the direction of being close to lateral wall and antetheca, makes the refrigerator door move the second distance to the inboard. The hinge structure of the refrigerator ensures that the refrigerator door does not exceed or excessively exceed the side surface of the refrigerator body when being opened.

Description

Refrigerator with a door

Technical Field

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

Background

Among the correlation technique, the hinge structure of refrigerator door is the unipolar form mostly, realizes that the refrigerator door is rotatory around the hinge axis through the axle sleeve cooperation of hinge axis and refrigerator door, and the refrigerator door of this kind of hinge structure is opening the door in-process, and the bight of refrigerator door can surpass the side of box.

In the case of a built-in refrigerator, the refrigerator is generally placed in a cabinet, and the corner of the refrigerator door cannot exceed the size of the refrigerator body too much during the process of opening the door to 90 degrees, otherwise the use of the refrigerator is limited.

Disclosure of Invention

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

For this reason, the present application is directed to a refrigerator having a hinge structure such that a refrigerator door does not protrude or excessively protrudes beyond a side of a cabinet when being opened.

A refrigerator according to the present application includes: a case formed with a storage chamber; the hinge plate is fixedly arranged on the box body, and a first shaft and a second shaft are arranged on the hinge plate; a refrigerator door rotatably coupled to the cabinet to open or close the storage compartment, the refrigerator door having a front wall and a side wall adjacent to the hinge plate, the refrigerator door having a door housing and a protrusion vertically extending from the door housing to an inside thereof, the first and second grooves extending from an end surface of the door housing to the protrusion; the thickness of the door shell is recorded as H1, and the minimum wall thickness between the first groove and the second groove is recorded as H2, then H2= (0.5-1) H1; when the refrigerator door is rotated and opened from a closed state to a first state, the first state is less than 90 degrees, the moving tracks of the first shaft relative to the first groove are a first straight line segment and a first curve segment, and the moving tracks of the second shaft relative to the second groove are a second straight line segment and a second curve segment; first straight line section is to keeping away from the antetheca, being close to the direction extension of lateral wall for the refrigerator door moves first distance, moves one section distance to the front side to the inboard, and first curve section extends to the direction that is close to lateral wall and antetheca, makes the refrigerator door move the second distance to the inboard.

In some embodiments of the refrigerator of the present application, when the refrigerator door is continuously opened to 90 ° from the first state, the door body only performs a rotational motion with the first axis as a center of circle.

In some embodiments of the refrigerator, when the refrigerator door is opened from 90 °, the first shaft moves along a third curved line relative to the first groove, and the second shaft moves along a fourth curved line relative to the second groove, and the third curved line and the fourth curved line extend in a direction close to the side wall and the front wall.

In some embodiments of the refrigerator of the present application, an angle between the first straight line segment and the second straight line segment is greater than 45 °.

In some embodiments of the refrigerator of the present application, the first linear segment has a length less than the first curved segment, and the second linear segment has a length less than the second curved segment.

In some embodiments of the refrigerator of the present application, the first axis is closer to the side wall than the second axis, and the second linear segment extends in a direction away from the front wall and closer to the side wall; the second curved section extends away from the front wall and toward the side wall.

In some embodiments of the refrigerator, the first hinge shaft is located at an end of the first track groove and the second hinge shaft is located at an end of the second track groove when the refrigerator door is in a closed state; the second hinge axis has a gap with an end of the second track groove.

In some embodiments of the refrigerator, when the refrigerator door is opened by 90 °, a gap exists between the front wall of the refrigerator door and the side surface of the refrigerator body in the vertical direction.

In some embodiments of the refrigerator of the present application, the protrusion includes a first protrusion having an outer shape corresponding to the first groove and a second protrusion having an outer shape corresponding to the second groove.

In some embodiments of the refrigerator of the present application, the protrusion is integrally formed with the door case.

Drawings

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

Fig. 1 is a perspective view of a refrigerator according to an embodiment of the present application;

fig. 2 is a plan view of a refrigerator according to an embodiment of the present application;

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

fig. 4 is a relative position view of a first shaft and a second shaft of a refrigerator according to an embodiment of the present application;

fig. 5 is a first view at a hinge when a refrigerator door according to an embodiment of the present application is in a closed state;

FIG. 6 is a second view of a hinge of a refrigerator door according to an embodiment of the present disclosure in a closed state;

fig. 7 is a view of a first shaft of a refrigerator according to an embodiment of the present application in a third positioning position;

fig. 8 is a view of a refrigerator door according to an embodiment of the present application in a first state;

fig. 9 is a view of a refrigerator door according to an embodiment of the present application in a state of being opened by 90 °;

fig. 10 is a view of a refrigerator door according to an embodiment of the present application in a maximally opened state;

fig. 11 is a view of another example of a hinge in a closed state of a refrigerator door according to an embodiment of the present application;

fig. 12 is a view of another example of a hinge shaft of a refrigerator according to an embodiment of the present application;

fig. 13 is an exploded view of a hinge of an upper right corner of a refrigerator according to an embodiment of the present application;

fig. 14 is an exploded view of an upper end of a refrigerator door according to an embodiment of the present application;

FIG. 15 is a view of a hinge at a lower end of a refrigerator door according to an embodiment of the present application;

fig. 16 is an exploded view of a hinge at a lower end of a door body of a refrigerator according to an embodiment of the present application;

fig. 17 is an exploded view of a lower end of a refrigerator door according to an embodiment of the present application;

fig. 18 is a perspective view of an upper mounting block of a refrigerator according to an embodiment of the present application;

fig. 19 is a perspective view of a lower mounting block of a refrigerator according to an embodiment of the present application;

figure 20 is a first view of another embodiment of a refrigerator door according to an embodiment of the present application;

figure 21 is a second view of another embodiment of a refrigerator door according to embodiments of the present application;

in the above figures: 1. a refrigerator; 10. a box body; 20. a storage chamber; 21. an upper storage chamber; 22. a lower storage chamber;

30. a refrigerator door; 301. a door shell; 302. a boss portion; 303. a first boss portion; 304. a second boss; 31. a front wall; 32. a side wall; 33. angular edges; 34. an upper accommodating groove; 35. a lower accommodating groove; 37. a first convex portion; 38. a second convex portion; 39. a clearance groove;

40. a shaft; 41. a first shaft; 42. a second shaft;

50. a groove;

51. a first groove; 511. a first positioning position; 512. a second positioning location; 513. a third positioning position; 514. a first termination location; 5113. a first straight line segment; 5132. a first curve segment; 5133. a first curve segment; 5134. a second curve segment; 5124. a third curve segment;

52. a second groove; 521. a first guiding position; 522. a second guiding position; 523. a third guiding position; 524. a fourth guide position; 525. a second termination location; 5213. a second straight line segment; 5232. a second curve segment; 5233. a second curve segment; 5234. a fourth curve segment; 5245. a fourth curve segment;

60. a hinge plate; 60a, an upper hinge plate; 60b, a lower hinge plate; 601. a connecting portion; 602. an extension portion; 603. a stopper portion;

70. mounting a block; 70a, an upper mounting block; 70b, a lower mounting block; 71. a plate body; 72. an extension portion; 73. a latch hook; 731. a root portion; 732. a hook part;

80. a limiting block; 81. an embedding part; 82. a limiting part; 83. a reinforcing portion;

90. a shaft sleeve; 100. a cupboard.

Detailed Description

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

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

The terms "first", "second", "third" and "fourth" 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, features defined as "first", "second", "third", "fourth" may explicitly or implicitly include one or more of the features.

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 a specific case to those of ordinary skill in the art.

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

Referring to fig. 1, a refrigerator 1 may include: a cabinet 10 having a storage chamber 20, a refrigerator door 30 connected to the cabinet 10 to open and close the storage chamber 20, and a cool air supply device supplying cool air to the storage chamber 20.

The cool air supply device may include an evaporator, a compressor, a condenser, and an expansion device, and may generate cool air by using latent heat of evaporation of the refrigerant.

The case 10 may include: an inner case defining a storage chamber 20; an outer case connected to an outer side of the inner case to form an external appearance of the refrigerator 1; and an insulator provided between the inner and outer cases to insulate the storage compartment 20.

The case 10 may include: a horizontal partition plate dividing the storage chamber 20 into an upper storage chamber 21 and a lower storage chamber 22, and a vertical partition plate dividing the lower storage chamber 22 from side to side. The upper storage chamber 21 may be used for a refrigerating chamber for storing food in a refrigerating mode by maintaining air at a temperature of about 0 to 5 c, and the lower storage chamber 22 may be used for a freezing chamber for storing food in a freezing mode by maintaining air at a temperature of 0 to-30 c.

The storage chamber 20 may have an open front to allow food to be received and taken out, and the open front of the storage chamber 20 may open and close the storage chamber 20 by the rotatable refrigerator door 30.

The refrigerator door 30 may be rotatably supported by a hinge at an upper portion and a hinge at a lower portion. For example, a hinge may be provided at an upper portion of the refrigerator door 30 to rotatably support the refrigerator door 30.

For convenience of description, referring to fig. 2 and 3, a side of the left and right sides of the refrigerator door 30 close to the hinge is referred to as a side wall 32, for example, when the hinge is located at the right side of the cabinet 10, the right side of the refrigerator door 30 is the side wall 32; the left side of the refrigerator door 30 is a sidewall 32 when the hinge is located at the left side of the cabinet 10. The front wall 31 and the side walls 32 of the refrigerator door 30 meet to form corner edges 33.

In general, a plane on which a side of the box 10 close to the hinge is located is defined as a reference plane X, one side of the reference plane X close to the cabinet 100 is an outer side, and the other side opposite to the outer side is an inner side; when the refrigerator is used in the cabinet 100, the cabinet is usually disposed at a distance α =5mm from the reference plane X in order to prevent the uneven floor of the user and deformation of the cabinet. In order to ensure that the refrigerator door 30 of the refrigerator is normally opened, the angular edge 33 of the refrigerator door 30 cannot exceed the reference plane X too much during the rotation, otherwise, the angular edge 33 collides with the cabinet and cannot be normally opened.

Therefore, for a refrigerator in which a hinge is provided at the left or right end of the refrigerator door 30, it is required that the refrigerator door 30 can move in an inner direction (the inner direction is a direction directed from the hinge to the middle of the refrigerator in a horizontal plane) during the rotation to avoid interference of the corner edge 33 with the cabinet 100. For the hinge at the right end of the refrigerator door 30, the refrigerator door 30 moving inward means that the refrigerator door 30 moves to the left; for the hinge on the left side of the refrigerator door 30, the refrigerator door 30 moving inward means that the refrigerator door 30 moves to the right side.

In the embodiment of the present application, the hinge includes a shaft 40 and a groove 50, and the shaft 40 moves in the groove 50, thereby moving the refrigerator door 30 inwardly while rotating to open.

In particular, with reference to fig. 3, the hinge takes the form of a two-axis hinge, i.e. the shaft 40 comprises a first shaft 41 and a second shaft 42, and the slot 50 comprises a first slot 51 and a second slot 52. The first shaft 41 is fitted into the first groove 51, and the second shaft 42 is fitted into the second groove 52, such that the first shaft 41 moves relatively within the first groove 51 and the second shaft 42 moves relatively within the second groove 52 during the rotational opening or closing of the refrigerator door 30.

Because the first groove 51 and the first shaft 41, and the second groove 52 and the second shaft 42 are in relative motion, if the refrigerator door 30 is opened and the first groove 51 and the second groove 52 are taken as stationary references, it is equivalent to the first shaft 41 moving in the first groove 51 and the second shaft 42 moving in the second groove 52. For the sake of convenience of description, the present application is described in a manner that the first groove 51 and the second groove 52 are used as references, and the first shaft 41 and the second shaft 42 move relative to the references:

referring to fig. 4, a specific example of the relative positions of the first shaft 41 and the second shaft 42 is shown: when the first shaft 41 and the second shaft 42 are fixed with respect to the cabinet 10 and the first groove 51 and the second groove 52 are provided on the refrigerator door 30, the first shaft 41 is closer to the side wall 32 and farther from the front wall 31 than the second shaft 42. The vertical distance L1 between the first shaft 41 and the second shaft 42 in the front-back direction is equal to or less than 2.5mm and equal to or less than L1 and equal to or less than 10mm, the vertical distance L2 between the first shaft 41 and the second shaft 42 in the left-right direction is equal to or less than 7.5mm and equal to or less than L2 and equal to or less than 30mm, in the current example, L1=5mm, L2=15mm, and the thickness of the refrigerator door 30 is set to be between 44mm and 53mm, so that the distance that the corner of the refrigerator door 30 always exceeds the reference plane X in the door opening process is smaller, specifically smaller than 3mm.

Referring to fig. 5, when the refrigerator door 30 is in the closed state, the first shaft 41 is located at an end of the first groove 51, and the second shaft 42 is located at an end of the second groove 52, whereby starting ends of the first groove 51 and the second groove 52 can be determined, the first groove 51 extending from the starting end to the other end in a direction close to the side wall 32 and the front wall 31, and the second groove 52 extending from the starting end to the other end in a direction away from the front wall 31 and close to the side wall 32. The first and

second grooves

51 and 52 extend in a direction close to the side wall 32 so that the refrigerator door 30 moves inward with respect to the cabinet 10.

When the refrigerator door 30 is rotated and opened to 90 ° from the closed state, the first shaft 41 extends in a direction approaching the front wall 31 and the side wall 32 relative to the movement track of the first groove 51, and the second shaft 42 extends in a direction departing from the front wall 31 and approaching the side wall 32 relative to the movement track of the second groove 52, so that the refrigerator door 30 moves inward for a certain distance while rotating, and the problem that the side wall 32 or the corner edge 33 exceeds the reference plane X and interferes with the cabinet to be incapable of being normally opened in the opening process of the refrigerator door 30 is avoided.

With respect to the first embodiment of the slot 50 in this application:

referring to fig. 6 to 8, in fig. 8, the refrigerator door is in a first state, and an opening angle of the refrigerator door in fig. 7 is smaller than that in the first state. When the refrigerator door 30 is rotated to be opened from the closed state to the first state, which is less than 90 °, the first shaft 41 moves from the first positioning position 5111 to the second positioning position 512 of the first groove 51, and at the same time, the second shaft 42 moves from the first guiding position 521 to the second guiding position 522 of the second groove 52; since the second positioning position 512 is closer to the side wall 32 and the front wall 31 than the first positioning position 5111, the refrigerator door 30 moves inward for a certain distance during the rotation, and the inward movement for a certain distance can prevent the side wall 32 or the corner edge 33 of the refrigerator door 30 from touching the cabinet.

During this movement, the corner edge 33 of the refrigerator door 30 can rotate on the outside of the reference plane X and move in the inside direction. The distance beta that the angular edge 33 surpasses the reference plane X is always less than the distance alpha (5 mm) between the reference plane X and the cupboard to guarantee that the angular edge 33 can not touch the cupboard and interfere, the angular edge 33 of the refrigerator door 30 is outside the reference plane X, and the problem that the refrigerator door 30 can cause the user to open the door and stop the door when moving a large distance to the inside of the reference plane X to the inside is avoided.

In the above description, the movement locus of the first shaft 41 from the first positioning position 5111 to the second positioning position 512 and the movement locus of the second shaft 42 from the first guiding position 521 to the second guiding position 522 have curved sections. The motion trajectory of the curved segment can ensure the smoothness of the motion process of the refrigerator door 30, and prevent the refrigerator door 30 from moving inwards along a long straight line to cause a pause and error feeling of a user.

With respect to the second embodiment of the slot 50 in this application:

the difference from the first embodiment is in the specific shape of the slot 50 when the refrigerator door 30 is opened from the closed state to the first state: when the refrigerator door 30 is rotated to open from the closed state to the first state, the first shaft 41 moves from the first positioning position 511 of the first groove 51 to the third positioning position 513 (shown in fig. 7) along the first straight line segment 5113, and then moves from the third positioning position 513 to the second positioning position 512 (shown in fig. 8) along the first curved segment 5132; at the same time, the second shaft 42 moves from the first guide position 521 of the second slot 52 to the third guide position 523 along the second straight section 5213, and then moves from the third guide position 523 to the second guide position 522 along the second curved section 5232.

Wherein the third positioning position 513 is farther away from the front wall 31 and closer to the side wall 32 than the first positioning position 511, and the first straight line segment 5113 extends away from the front wall 31 and closer to the side wall 32, so that the first shaft 41 moves toward the side wall 32 and away from the front wall 31, which is equivalent to the refrigerator door 30 with the first groove 51 moves a first distance away from the side wall 32 (inner side) and a distance toward the front wall 31 (front side), and the refrigerator door 30 moves toward the inner side to avoid the corner edge 33 exceeding the reference plane X to touch the cabinet; because the refrigerator door 30 is when just opening, the bight of refrigerator door 30 can be rotatory backward first axle 41 relatively, moves to the inboard along with refrigerator door 30, and door seal 30a on the refrigerator door 30 can have the phenomenon with the leading flank contact friction of box 10, and sets up refrigerator door 30 in this application and removes one section distance to the front side, can avoid the door to seal 30a and the leading flank of box 10 between the friction, improves the life that door sealed 30 a.

The third guide position 523 is farther from the front wall 31 and closer to the side wall 32 than the first guide position 521, and the second straight line segment 5213 extends in a direction farther from the front wall 31 and closer to the side wall 32.

The second positioning position 512 is closer to the front wall 31 and the side wall 32 than the third positioning position 513, and the first curved section 5132 extends from the third positioning position 513 to the second positioning position 512 in a direction of being closer to the front wall 31 and the side wall 32, so that the refrigerator door 30 moves a second distance inward.

The second guiding position 522 is farther from the front wall 31 and closer to the side wall 32 than the third guiding position 523, and the second curved section 5232 extends away from the front wall 31 and closer to the side wall 32. Wherein the center of curvature of the first curved segment 5132 is located on a side of the first curved segment 5132 adjacent to the front wall; the center of curvature of second curved section 5232 is located on the side of second curved section 5232 adjacent to the corner edge.

The process that the refrigerator door 30 moves to the inboard has two different orbits, and axle 40 moves along the curvilinear motion along linear motion earlier than groove 50 relatively, can avoid the refrigerator door only along the linear or only along the curvilinear motion when carrying out the large-angle rotation the easy parallel and problem that the refrigerator door 30 rocked that appears of orbit.

In other embodiments, the shaft 40 may move along a curve and then move along a straight line with respect to the groove 50 during the opening of the refrigerator door 30 to the first state, or the movement track of the shaft 40 with respect to the groove 50 may be a multi-segment curve and a straight line crossing each other.

In some embodiments, the included angle between the first linear segment 5113 and the second linear segment 5213 is greater than 45 °, so that the refrigerator door 30 can be prevented from shaking when the included angle between the first linear segment 5113 and the second linear segment 5213 is small and is close to parallel, and the stability of the refrigerator door 30 in the rotating process is ensured.

When the first shaft 41 is located at the third positioning position 513 and the second shaft 42 is located at the third guiding position 523 (the state shown in fig. 7), the opening angle of the refrigerator door 30 is about 5 to 10 °, and the distance β between the angular edge 33 and the reference plane X is less than 2mm in the opening angle range. When the first shaft 41 is located at the second positioning position 512 and the second shaft 42 is located at the second guiding position 522 (the state shown in fig. 8), the opening angle of the refrigerator door 30 is about 25 to 60 °, and the distance β between the angular edge 33 and the reference plane X is less than 3mm.

In some embodiments, the distance from the third positioning position 513 to the second positioning position 512 is greater than the distance from the first positioning position 511 to the third positioning position 513, that is, the length of the first straight line segment 5113 is smaller than the length of the first curved line segment 5132, and the length of the second straight line segment 5213 is smaller than the length of the second curved line segment 5232, so that the first shaft 41 and the second shaft 42 only perform a linear movement with a smaller distance at the beginning, and perform a curved movement with a larger angle at the end, the curved movement can ensure the fluency of the movement process of the refrigerator door 30, and avoid the unsmooth error feeling of the user caused by the inward movement of the refrigerator door 30 during the linear movement.

With respect to the third embodiment of the slot 50 in this application:

the difference from the second embodiment is: with continued reference to fig. 8, each of first curve segment 5132 and second curve segment 5232 at least comprises two curve segments having decreasing changes in curvature.

Like this, the curvity of curve diminishes and makes the refrigerator door 30 unit angle in to the distance that the inboard removed diminish, that is to say, refrigerator door 30 is opening the door in-process that inwards removes at the rotation, and the motion slows down, guarantees the smoothness nature of refrigerator door 30 motion process.

In some embodiments of varying curvature, first curvilinear segment 5132 comprises first curvilinear segment 5133 and third curvilinear segment 5134 connected in series, and second curvilinear segment 5232 comprises second curvilinear segment 5233 and fourth curvilinear segment 5234 connected in series; the curvature of third curvilinear segment 5134 is less than first curvilinear segment 5133 and the curvature of fourth curvilinear segment 5234 is less than second curvilinear segment 5233.

The second shaft 42 moves along the second curved section 5233 while the first shaft 41 moves along the first curved section 5133, during which the refrigerator door 30 moves inward by a distance d1 when opening a unit angle; the second shaft 42 moves along the fourth curved section 5234 while the first shaft 41 continues to move along the third curved section 5134, during which the refrigerator door 30 moves inward by a distance d2 when opening a unit angle, d2 < d1. As a specific example, d2 may be 1/2 of d1.

In other embodiments, the first curve segment 5132 and the second curve segment 5232 can also include three or more curve segments.

In other embodiments with varying curvatures, the curvatures of the first curved section 5132 and the second curved section 5232 are respectively gradually decreased, so as to ensure that the refrigerator door 30 moves slowly during the inward movement of the door when the door is opened by rotation, thereby ensuring the smoothness of the refrigerator door 30 during the movement.

With respect to the fourth embodiment of the slot 50 in this application:

unlike the first three embodiments, the structure of the refrigerator door 30 is designed to open from the first state to the 90 ° time slot 50:

referring to fig. 9, when the refrigerator door 30 is opened to 90 ° from the first state, the refrigerator door 30 only performs a rotational movement, the position of the first shaft 41 at the second positioning position 512 is not changed, the refrigerator door 30 rotates around the first shaft 41, and the second shaft 42 moves along an arc from the second guiding position 522 to the fourth guiding position 524 in the second slot 52. The fourth guiding position 524 is further from the front wall 31 and closer to the side wall 32 than the second guiding position 522.

In some embodiments, when the refrigerator door 30 is in the 90 ° open state, the front wall 31 of the refrigerator door 30 has a vertical gap γ from the reference plane X, that is, the front wall 31 of the refrigerator door 30 is located inside the reference plane X and the distance γ from the front wall 31 to the reference plane X is > 0, so that the refrigerator 30 can continue to open a small angle without interfering with the cabinet. In the present example, the refrigerator door 30 may be opened > 90, approximately 105 to 110, when the refrigerator is disposed in the cabinet.

With respect to the fifth embodiment of the slot 50 in the present application:

unlike the first four embodiments, in order to allow for the refrigerator to be opened at a greater angle when not inserted into a cabinet for use, the present embodiment is designed to extend the first and second grooves 51 and 52:

referring to fig. 10, when the refrigerator door 30 is opened from 90 °, the first shaft 41 moves from the second positioning position 512 to the first end position 514 along the third curved section 5124, and the second shaft 42 moves from the fourth guiding position 524 to the second end position 525 along the fourth curved section 5245. Wherein the third curved section 5124 and the fourth curved section 5245 both extend in a direction close to the front wall 31 and close to the side wall 32, the refrigerator door 30 continues to rotate while the corner edge 33 moves inward and forward a distance.

If the refrigerator door 30 only rotates during the process, the phenomenon that the first shaft 41 and the second shaft 42 tend to move in parallel and the refrigerator door 30 shakes easily occurs in a longer rotation range, so that the refrigerator door 30 is set to move forwards and inwards for a certain distance during rotation at this stage, and an included angle exists between the movement track of the first shaft 41 and the movement track of the second shaft 42 at any point.

Specifically, the included angle between the tangent lines of the motion trail of the first shaft 41 and the motion trail of the second shaft 42 at any corresponding point is more than 30 degrees, and the motion stability of the refrigerator door 30 is ensured.

In other embodiments, the movement path of the first shaft 41 from the second positioning position 512 to the first end position 514 and the movement path of the second shaft 42 from the fourth guiding position 524 to the second end position 525 may be straight lines.

In the above description, the extending directions of the track line, the second groove 52 and the first groove 51 respectively correspond to the moving directions of the shaft relative to the grooves during the opening of the refrigerator door 30.

Based on the above-mentioned structure of the groove 50, in some embodiments of the present disclosure, referring to fig. 11, when the refrigerator door 30 is in the closed state, a certain gap δ is formed between the second shaft 42 and the starting end of the second groove 52, so that when the refrigerator door 30 is forcibly thrown, the second shaft 42 is prevented from contacting the starting end of the second groove 52, and the refrigerator door 30 is prevented from being bounced open.

In some embodiments of the present application, since the first shaft 41 mainly plays a positioning role and the second shaft 42 mainly plays a guiding role, in the two shafts 40, the first shaft 41 is a main shaft, the second shaft 42 is an auxiliary shaft, and the acting force is mainly concentrated on the main shaft, accordingly, the length of the first shaft 41 is set to be greater than that of the second shaft 42, and accordingly, the first groove 51 is deeper than the second groove 52, so that the waste of material cost caused by the second shaft 42 being too long can be avoided, and meanwhile, the problem that the groove 50 is easily separated from the shaft 40 when the refrigerator door is inclined and the first shaft 41 is shorter can be avoided, and the material cost is saved on the basis of ensuring the structural reliability.

In addition, because the acting force is concentrated on the first shaft 41, the diameter of the first shaft 41 can be larger than that of the second shaft 42, so that the first shaft 41 is thicker and better stressed, and has enough strength to bear the acting force when the refrigerator door is inclined; meanwhile, since the second groove 52 is long, the space in the thickness direction of the refrigerator door is occupied more, the second shaft 42 is arranged to be thin, and accordingly the second groove 52 can be narrow, so that the refrigerator door can be designed to be thinner, the thickness of the refrigerator can be smaller as a whole, and the refrigerator door has the advantage of small size.

In some embodiments of the present application, referring to FIG. 12, the first shaft 41 and the second shaft 42 are sleeved with a bushing 90, and the bushing 90 is rotatable relative to the shaft 40. In the process of movement of the biaxial hinge, the shaft sleeve 90 rotates relative to the shaft 40, and meanwhile, the shaft sleeve slides with the groove, so that friction can be reduced, and the service life is prolonged. The shaft sleeve 90 can be made of wear-resistant POM material, and the shaft sleeve 90 can be connected to the hinge shaft through a bearing or connected to the hinge plate 60 through a bearing.

In other embodiments, a POM bushing may be disposed on the inner wall of the slot 50, with the hinge shaft moving within the bushing.

In some embodiments of the refrigerator of the present application, referring to fig. 13 and 16, the hinge specifically includes a hinge plate 60 fixedly connected to the cabinet 10, and the first shaft 41 and the second shaft 42 are connected to the hinge plate 60 to form a rotation shaft. The hinge plate 60, the first shaft 41, and the second shaft 42 may be integrally formed, but unlike this, the hinge plate 60, the first shaft 41, and the second shaft 42 may be separately provided and assembled with each other.

The hinge plate 60 may specifically include: a connection part 601 connected to the case 10; and an extension 602 extending forward from the connection 601 and having a horizontal plate shape. The connection portion 601 may be fastened to the case 10 by a fastener such as a screw, a pin, and a bolt. The first shaft 41 and the second shaft 42 may be formed on the extension 602.

The hinge plate 60 includes an upper hinge plate 60a at an upper end of the refrigerator door 30, and a lower hinge plate 60b at a lower end of the refrigerator door 30.

Referring specifically to fig. 13, as for the upper hinge plate 60a, a connection portion 601 is connected to the top end of the cabinet 10, and the first shaft 41 and the second shaft 42 vertically extend downward on the extension portion 602. The upper end of the refrigerator door 30 is provided with a first groove 51 and a second groove 52, corresponding to the position of the upper hinge plate 60 a.

With particular reference to FIG. 16, for the lower hinge plate 60b, the first shaft 41 and the second shaft 42 extend upwardly on the hinge plate 60. The lower end of the refrigerator door 30 is provided with a first groove 51 and a second groove 52 corresponding to the position of the lower hinge plate 60b.

In some embodiments of the present application, referring to fig. 14, 17, the refrigerator door 30 includes a mounting block 70, the mounting block 70 is mounted on the refrigerator door 30 at a position opposite to the hinge plate 60, and the first and

second grooves

51 and 52 are provided on the mounting block 70.

The mounting block 70 may specifically include a plate body 71, and an extension 72 formed by the plate body 71 extending outward. The first groove 51 and the second groove 52 are recessed from the end surface of the plate body 71 and extend to the extension portion 72. The extension 72 has a profile corresponding to the slot 50.

The mounting block 70 includes an upper mounting block 70a provided at an upper end of the refrigerator door 30, and a lower mounting block 70b provided at a lower end of the refrigerator door 30.

Referring specifically to fig. 14, the upper end of the refrigerator door 30 is correspondingly provided with an upper receiving groove 34, and an upper mounting block 70a is inserted into the upper receiving groove 34, and then the plate body 71 is fixedly coupled to the refrigerator door 30 by screws or the like.

Referring specifically to fig. 17, the lower end of the refrigerator door 30 is correspondingly provided with a lower receiving groove 35, and the lower mounting block 70b is inserted into the lower receiving groove 35, and then the plate body 71 is fastened to the refrigerator door 30 by screws or the like.

The upper mounting block 70a and the lower mounting block 70b can be made of POM material, and the POM has the characteristic of strong friction resistance, so that the service life of the hinge can be prolonged.

In some embodiments of the present application, referring to fig. 15 to 17, the lower mounting block 70b may have a latch hook structure thereon, and specifically, the lower mounting block 70b includes a latch hook 73 disposed inside the plate body 71, an opening of the latch hook 73 faces the plate body 71, and a free end of the latch hook 73 is located at a rear side when the door refrigerator door 30 is closed.

The inner side of the lower hinge plate 60b is provided with a stopping part 603 extending outwards, when the refrigerator door 30 is in a closed state, the locking hook 73 on the refrigerator door 30 hooks the stopping part 603 on the hinge plate 60, so that the refrigerator door 30 is locked, and the cold storage and freezing effects of the refrigerator are prevented from being influenced by the untight closing of the refrigerator door 30; when the refrigerator door 30 is opened, the latch hook 73 is deformed by a force to overcome the blocking of the blocking portion 603, so as to be separated from the blocking portion 603.

Latch hook 73 may include a root portion 731 and a hook portion 732. The base portion 731 is connected to the plate body 71, and the hook portion 732 is connected to the base portion 731 and bent rearward and outward. The screw is inserted into the root portion 731 and connected to the refrigerator door 30 to enhance the connection strength between the root portion 731 and the refrigerator door 30, so that only the hook portion 732 deforms when the latch hook 73 is separated from the stopper portion 603.

The free ends of the hook portion 732 and the stopping portion 603 are both arc-shaped, which is beneficial for the hook portion 732 to move along an arc to hook the stopping portion 603 or separate from the stopping portion 603.

In some embodiments, referring to fig. 17 and 19 in combination, the refrigerator door 30 may be provided with a first protrusion 37 and a second protrusion 38, when the refrigerator door 30 is in a closed state, the first protrusion 37 and the second protrusion 38 are disposed substantially in a front-back direction, a gap groove 39 is formed between the first protrusion 37 and the second protrusion 38, and a portion 731a of the root portion 731 is inserted into the gap groove 39, so that the root portion 731 is prevented from being deformed in the front-back direction by the limit of the first protrusion 37 and the second protrusion 38.

It should be noted that the locking hook 73 may also be disposed on the upper mounting block 70a, and the stopping portion 603 is correspondingly disposed on the upper hinge plate 60 a.

In some embodiments of the present application, a limiting structure for limiting the refrigerator door 30 from being opened to a maximum angle is disposed between the refrigerator door 30 and the hinge plate 60, so as to prevent the mounting block 70 from being damaged when the door is opened to a certain angle by a large force.

Specifically, referring to fig. 15 and 16, the lower end of the refrigerator door 30 is provided with a stopper 80, the stopper 80 is located at the front end of the lower mounting block 70b, and when the refrigerator door 30 rotates to the maximum allowable position, the stopper 80 abuts against the side 604 of the hinge plate 60, thereby stopping the refrigerator door 30 from further rotating.

Referring to fig. 17, the stopper 80 may be a sheet metal member, and includes an embedding portion 81, a stopper portion 82, and a reinforcement portion 83.

The embedded portion 81 is plate-shaped and is installed in the lower receiving groove 35 of the refrigerator door 30, and the plate body 71 of the lower installation block 70b presses the embedded portion 81 against the refrigerator door 30 from the lower end, thereby fixing the limit block 80 on the refrigerator door 30.

The reinforcing part 83 and the embedding part 81 form a vertical included angle, namely, the embedding part 81 is in a horizontal state in an assembling state, and the reinforcing part 83 is in a vertical state; the reinforcement portion 83 is formed by bending the front end of the fitting portion 81 downward.

Spacing portion 82 is cubic, continues downwardly extending by the lower tip of rib 83 to form, and spacing portion 82 vertically extends the lower surface of refrigerator door 30 to when refrigerator door 30 drives stopper 80 and rotates to the maximum angle, spacing portion 82 can be blockked by the side of hinge plate 60b down, and then forces refrigerator door 30 to stop continuing to open.

The embedded part 81 of the limit block 80 is clamped between the lower mounting block 70b and the refrigerator door 30, so that a connecting structure between the limit block 80 and the refrigerator door 30 is omitted, the product structure is simplified, and the refrigerator door structure has the advantage of simple structure.

It should be noted that the limiting block 80 may also be disposed at the upper mounting block 70a of the refrigerator door 30, and when the refrigerator door 30 drives the limiting block 80 to rotate to the maximum angle, the limiting portion 82 is blocked by the side surface of the upper hinge plate 60a, so as to force the refrigerator door 30 to stop opening continuously.

If the distance between the first shaft 41 and the second shaft 42 is relatively far, the hinge movement is greatly influenced when the refrigerator door 30 is inclined or the two shafts are not parallel, and even the normal rotation of the hinge is influenced, therefore, in some embodiments of the present application, the thickness of the plate body 71 of the mounting block 70 is denoted as L1, and the minimum wall thickness between the first groove 51 and the second groove 52 is denoted as L2, then L2= (0.5-1) L1, so that the distance between the first shaft 41 and the second shaft 42 is relatively short, and the hinge movement is less influenced when the refrigerator door is slightly inclined or the two shafts are not parallel.

In the above embodiment, the first and

second grooves

51 and 52 are provided on the mounting block 70, and then the mounting block 70 is mounted on the refrigerator door 30. However, in other embodiments, the first and

second grooves

51 and 52 may be directly provided on the refrigerator door 30.

Referring to this, the first and

second grooves

51 and 52 are formed to be depressed downward at positions corresponding to the upper hinge plate 60a of the refrigerator door 30; the refrigerator door 30 is recessed upward at a position corresponding to the lower hinge plate 60b to form a first groove 51 and a second groove 52.

Specifically, the refrigerator door 30 includes a door case 301, and a boss portion 302 vertically extending from the door case 301 toward the inside thereof. The first groove 51 and the second groove 52 are formed by the outer end surface of the door case 301 being recessed inward onto the boss 302.

Wherein, the convex portion 302 may be integrally formed with the door case 301. The boss 302 includes a first boss 303 and a second boss 304, the first boss 303 having a shape corresponding to the first groove 51, and the second boss 304 having a shape corresponding to the second groove 52.

If the thickness of the door case 301 is H1 and the minimum thickness between the first groove 51 and the second groove 52 is H2, then H2= (0.5 to 1) H1, and this arrangement allows the first shaft 41 and the second shaft 42 to be closer to each other, and the hinge movement is less affected when the door is slightly tilted or the two shafts are not parallel, and the strength of the mounting block 70 is not affected.

In the above embodiment, the first shaft 41 and the second shaft 42 are provided on the hinge plate 60, and the first groove 51 and the second groove 52 are provided on the refrigerator door 30; in other embodiments, the first shaft 41 and the second shaft 42 may be disposed on the refrigerator door 30, and the first groove 51 and the second groove 52 are disposed on the hinge plate 60; alternatively, in another embodiment, the first shaft 41 and the second groove 52 are provided on the hinge plate 60, and the second shaft 42 and the first groove 51 are provided on the refrigerator door 30; or the first shaft 41 and the second groove 52 are provided on the refrigerator door 30 and the second shaft 42 and the first groove 51 are provided on the hinge plate 60.

According to the application, the refrigerator door 30 is arranged to move a first distance to the inner side and move a distance to the front side when being initially opened, the refrigerator door 30 can not be interfered with a cabinet by moving the first distance to the inner side, and the problem of abrasion caused by the friction of the door seal 30a and the front side surface of the box body 10 can be avoided by moving the distance to the front side.

According to the application, the process that the refrigerator door 30 is rotated, opened and moved inwards is divided into two stages, namely, the shaft moves along a straight line and then along a curve relative to the groove, so that the problem that the refrigerator door 30 shakes due to the fact that tracks are easy to be parallel when the refrigerator door rotates along a straight line or a curve at a large angle can be avoided; and the first shaft 41 and the second shaft 42 only perform linear movement with a small distance at the beginning, and perform curvilinear movement with a large angle at the subsequent time, so that the curvilinear movement can ensure the fluency of the movement process of the refrigerator door 30, and avoid the unsmooth feeling of a user caused by the fact that the refrigerator door 30 moves hard inwards along the linear movement.

According to this application, the curve track that refrigerator door 30 first axle 41 and second axle 42 moved when opening to first state includes that two sections curvatures are the curve segmentation that reduces the change at least for the distance that moves to the inboard diminishes in refrigerator door 30 unit angle, and refrigerator door 30 is opening the in-process that the door inwards removed in the rotation, and the motion slows down, guarantees refrigerator door 30 motion process's fluency.

According to the application, when the refrigerator door 30 is continuously opened by 90 degrees, the movement track of the first shaft 41 is the third curve segment 5124, and the movement track of the second shaft 42 is the fourth curve segment 5245, so that an included angle exists between the movement track of the first shaft 41 and the movement track of the second shaft 42 at any point, the problem that the refrigerator door 30 is prone to shaking when rotating within a large angle range is avoided, and the stability of the movement of the refrigerator door 30 is guaranteed.

According to this application, at the whole process that refrigerator door 30 opened, the first axle removes the other end from the one end in first groove, and the second axle removes the other end from the one end in second groove, and the motion process can not withdraw, the smooth and easy nature that refrigerator door 30 guaranteed opened.

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 case formed with a storage chamber;

the hinge plate is fixedly arranged on the box body, and a first shaft and a second shaft are arranged on the hinge plate;

a refrigerator door rotatably coupled to the cabinet to open or close the storage compartment, the refrigerator door having a front wall and a side wall adjacent to the hinge plate, the refrigerator door having a door housing and a protrusion vertically extending from the door housing to an inside thereof, the first and second grooves extending from an end surface of the door housing to the protrusion;

the thickness of the door shell is recorded as H1, and the minimum wall thickness between the first groove and the second groove is recorded as H2, then H2= (0.5-1) H1;

when the refrigerator door is rotated and opened from a closed state to a first state, the first state is less than 90 degrees, the moving track of the first shaft relative to the first groove is a first straight line segment and a first curve segment, and the moving track of the second shaft relative to the second groove is a second straight line segment and a second curve segment; the first straight line segment extends towards the direction far away from the front wall and close to the side wall, so that the refrigerator door moves towards the inner side by a first distance and moves towards the front side by a certain distance, and the first curve segment extends towards the direction close to the side wall and the front wall, so that the refrigerator door moves towards the inner side by a second distance.

2. The refrigerator according to claim 1, wherein when the refrigerator door is opened from the first state to 90 °, the door body performs only a rotational motion around the first axis.

3. The refrigerator of claim 1, wherein when the door is opened by 90 °, the first shaft moves along a third curved line with respect to the first slot, and the second shaft moves along a fourth curved line with respect to the second slot, and the third curved line and the fourth curved line extend in directions approaching the side walls and the front wall.

4. The refrigerator of claim 1 wherein the first and second linear segments include an angle greater than 45 °.

5. The refrigerator of claim 1 wherein the first linear segment is shorter in length than the first curved segment and the second linear segment is shorter in length than the second curved segment.

6. The refrigerator of claim 1, wherein the first axis is closer to the side wall and further from the front wall than the second axis when the refrigerator door is in the closed state, and the second straight line segment extends in a direction away from the front wall and closer to the side wall; the second curved section extends away from the front wall and toward the side wall.

7. The refrigerator of claim 1, wherein the first hinge shaft is located at an end of the first track groove and the second hinge shaft is located at an end of the second track groove when the refrigerator door is in a closed state; the second hinge axis has a gap with an end of the second track groove.

8. The refrigerator as claimed in claim 1, wherein the front wall of the refrigerator door has a gap vertically with the side of the cabinet when the refrigerator door is opened by 90 °.

9. The refrigerator of claim 1, wherein the protrusion includes a first protrusion having an outer shape corresponding to the first groove and a second protrusion having an outer shape corresponding to the second groove.

10. The refrigerator of claim 1, wherein the boss is integrally formed with the door case.