CN115682596A

CN115682596A - Refrigerator with a door

Info

Publication number: CN115682596A
Application number: CN202110994593.8A
Authority: CN
Inventors: 杨春; 赵振雷; 蒋文静
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; CN115682603A; 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 limiting block arranged on a refrigerator door; the limiting block is positioned at the front end of the hinge plate when the box door is closed and abuts against the side surface of the hinge plate when the box door is opened to the maximum so as to prevent the box door from being opened continuously; when the box door is rotated and opened from a closed state to a first state, the first state is less than 90 degrees, the first shaft moves along the first straight line section and the first curve section in the first groove in sequence, and the second shaft moves along the second straight line section and the second curve section in the second groove in sequence; the first straight line section extends towards the direction far away from the front wall and close to the side wall, so that the box door moves towards the inner side for a first distance and moves towards the front side for a certain distance, and the first curve section extends towards the direction close to the side wall and the front wall, so that the box door moves towards the inner side for a second distance. 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

Technical Field

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

Background

In the related art, most of hinge structures of the box door are in a single-shaft form, the box door rotates around a hinge shaft through the cooperation of the hinge shaft and a shaft sleeve of the box door, and corners of the box door can exceed the side faces of the box body in the door opening process of the box door with the hinge structures.

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

Disclosure of Invention

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

To this end, the present application is directed to providing a refrigerator having a hinge structure such that a door does not protrude beyond or excessively protrudes beyond a side surface of a cabinet when 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; the box door is rotationally connected with the box body so as to open or close the storage chamber, the box door is provided with a front wall and a side wall close to the hinge plate, and the box door is provided with a first groove matched with the first shaft and a second groove matched with the second shaft; the limiting block is arranged on the box door; the limiting block is positioned at the front end of the hinge plate when the box door is closed and is abutted against the side surface of the hinge plate when the box door is opened to the maximum degree so as to prevent the box door from being opened continuously; when the box door is rotated and opened from a closed state to a first state, the first state is less than 90 degrees, the first shaft moves along the first straight line section and the first curve section in the first groove in sequence, and the second shaft moves along the second straight line section and the second curve section in the second groove in sequence; the first straight line section extends towards the direction far away from the front wall and close to the side wall, so that the box door moves towards the inner side for a first distance and moves towards the front side for a certain distance, and the first curve section extends towards the direction close to the side wall and the front wall, so that the box door moves towards the inner side for a second distance.

In some embodiments of the refrigerator of the present application, when the door is opened to 90 ° from the first state, the door only rotates about the first axis.

In some embodiments of the refrigerator of the present application, when the door is opened further from 90 °, the first shaft moves along the third curved segment in the first slot while the second shaft moves along the fourth curved segment in the second slot; the third curved section and the fourth curved section both extend in a direction towards the side walls and the front wall.

In some embodiments of the refrigerator of the present application, the first and second linear segments have an included angle 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 of the present application, the first hinge shaft is located at an end of the first trace groove and the second hinge shaft is located at an end of the second trace groove when the door is in a closed state; the second hinge shaft has a gap from an end of the second track groove.

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

In some embodiments of the refrigerator of the present application, the door is provided with an accommodating groove; the refrigerator further includes: the mounting block is mounted in the accommodating groove and is provided with a first groove and a second groove; the stopper is located the holding tank and is located the front side of installation piece.

In some embodiments of the refrigerator of the present application, the stopper includes: the embedded part is clamped between the groove bottom of the accommodating groove and the mounting block; the reinforcing part is connected with the embedding part at an included angle; the limiting part is arranged at one end of the reinforcing part far away from the embedded part and can be abutted against the hinge plate so as to limit the maximum opening angle of the box door.

Drawings

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

Fig. 1 is a perspective view of a refrigerator 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 illustrates a first view at a hinge of a door of an embodiment of the present application in a closed position;

FIG. 6 is a second view of the hinge when the door of the present embodiment is in a closed position;

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 door according to an embodiment of the present application in a first state;

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

FIG. 10 is a view of a door according to an embodiment of the present application in a maximum open position;

FIG. 11 is a view of another embodiment of a hinge when a door of an embodiment of the present application is in a closed position;

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 door according to an embodiment of the present application;

FIG. 15 is a view of a hinge at a lower end of a 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 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;

FIG. 20 is a first view of another embodiment of a door in accordance with an embodiment of the present application;

FIG. 21 is a second view of another embodiment of a door in accordance with an embodiment 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 box door; 301. a door shell; 302. a boss portion; 303. a first boss portion; 304. a second boss portion; 31. a front wall; 32. a side wall; 33. a lateral edge; 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 location; 514. a first end position; 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 cabinet.

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 and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 application will be described in detail with reference to the accompanying drawings. In the drawings, a side of the refrigerator facing a user when in use is defined as a front side, and an opposite side is defined as a rear side.

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

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

For convenience of description, referring to fig. 2 and 3, a side of the left and right sides of the 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 door 30 is the side wall 32; when the hinge is located at the left side of the cabinet 10, the left side surface of the door 30 is the side wall 32. Front wall 31 and side walls 32 of door 30 meet to form side 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 while being placed in the cabinet 100, the cabinet is generally disposed at a distance α =5mm from the reference plane X in order to prevent the user from unevenness of the floor and deformation of the cabinet. In order to ensure that the door 30 of the refrigerator is normally opened, the side edge 33 of the door 30 cannot exceed the reference plane X too much during the rotation, otherwise, the side edge 33 collides with the cabinet and cannot be normally opened.

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

In the embodiment of the present application, the hinge includes a shaft 40 and a slot 50, and the shaft 40 moves in the slot 50, thereby moving the 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, so that the first shaft 41 moves relatively in the first groove 51 and the second shaft 42 moves relatively in the second groove 52 during the rotation opening or closing of the 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 first groove 51 and the second groove 52 are taken as stationary reference objects during the opening process of the door 30, it is equivalent to that the first shaft 41 moves in the first groove 51 and the second shaft 42 moves 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 formed in the 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 door 30 is set to be between 44mm and 53mm, so that the distance that the corner of the 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 door 30 is in the closed state, the first shaft 41 is located at an end of the first slot 51, and the second shaft 42 is located at an end of the second slot 52, so that starting ends of the first slot 51 and the second slot 52 can be determined, the first slot 51 generally extends 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 slot 52 generally extends from the starting end to the other end in a direction away from the front wall 31 and the side wall 32. Extending first slot 51 and second slot 52 in a direction closer to sidewall 32 may allow door 30 to move inwardly with respect to housing 10.

When the door 30 is rotated to open to 90 ° from the closed state, the first shaft 41 extends in a direction substantially close to the front wall 31 and the side wall 32 relative to the motion track of the first groove 51, and the second shaft 42 extends in a direction substantially away from the front wall 31 and the side wall 32 relative to the motion track of the second groove 52, so that the door 30 moves inward for a certain distance while rotating, thereby avoiding the problem that the side wall 32 or the side edge 33 exceeds the reference plane X and interferes with the cabinet to prevent the door 30 from being opened normally during the opening process.

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

referring to fig. 6 to 8, in fig. 8, the door is in a first state, and in fig. 7, the door is opened at a smaller angle than in the first state. When the door 30 is rotated 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 slot 51, and simultaneously, the second shaft 42 moves from the first guiding position 521 to the second guiding position 522 of the second slot 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, so that the door 30 moves inward for a certain distance during the rotation, the inward movement for a certain distance can prevent the side wall 32 or the side edge 33 of the door 30 from touching the cabinet.

During this movement, lateral edges 33 of door 30 may rotate outside reference plane X and move in an inboard direction. The distance beta of the side edge 33 exceeding the reference plane X is always smaller than the distance alpha (5 mm) between the reference plane X and the cabinet, so that the side edge 33 is ensured not to touch the cabinet to cause interference, and meanwhile, the side edge 33 of the door 30 is arranged on the outer side of the reference plane X, so that the problem that the door opening of a user is interrupted when the door 30 moves inwards for a large distance to the inner side of the reference plane X 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 segments. The motion track of the curved segment can ensure the smoothness of the motion process of the box door 30, and prevent the box 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 door 30 is opened from the closed state to the first state: when the door 30 is rotated from the closed state to the first state, the first shaft 41 moves from the first positioning position 511 of the first slot 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 line 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 line segment 5213, and then moves from the third guide position 523 to the second guide position 522 along the second curved line segment 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 in a direction away from the front wall 31 and closer to the side wall 32, so that the first axis 41 moves in a direction closer to the side wall 32 and away from the front wall 31, which is equivalent to the door 30 with the first slot 51 moves a first distance away from the side wall 32 (inside) and moves a distance closer to the front wall 31 (front side), and the door 30 moves inward to avoid the side edge 33 exceeding the reference plane X to touch the cabinet; since the corner of the door 30 rotates backward relative to the first shaft 41 when the door 30 is just opened, the door seal 30a on the door 30 contacts and rubs with the front side of the box 10 as the door 30 moves inward, and the door 30 moves a distance forward in this application, so that the friction between the door seal 30a and the front side of the box 10 can be avoided, and the service life of the door seal 30a can be prolonged.

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 closer to the front wall 31 and the side wall 32, so that the 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 section 5132 is located at a side of the first curved section 5132 close to the front wall; the center of curvature of the second curved section 5232 is located on the side of the second curved section 5232 adjacent to the lateral edge.

The inward movement process of the box door 30 has two different tracks, namely, the shaft 40 moves along a straight line and then moves along a curve relative to the groove 50, so that the problem that the box door 30 shakes due to the fact that the tracks are easy to be parallel when the box door rotates along a straight line or a curve for a large angle can be avoided.

In other embodiments, during the opening of the door 30 to the first state, the shaft 40 may move along a curve and then move along a straight line with respect to the groove 50, 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 straight line segment 5113 and the second straight line segment 5213 is greater than 45 °, so that the situation that the box door 30 shakes when the included angle between the first straight line segment 5113 and the second straight line segment 5213 is small and is close to parallel can be avoided, and the stability of the box 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 door 30 is about 5 to 10 °, and the distance β between the side 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 door 30 is about 25 to 60 °, and the distance β of the side edge 33 exceeding 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 straight movement for a small distance at the beginning, and perform a curved movement for a large angle at the end, and the curved movement can ensure the fluency of the movement process of the door 30, thereby avoiding the unsmooth error feeling of the user caused by the inward movement of the door 30 during the straight 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.

In this way, the curvature of the curve is reduced, so that the distance that the door 30 moves inward in a unit angle is reduced, that is, the door 30 moves slowly in the process of moving inward by rotating to open the door, and the smoothness of the movement process of the door 30 is ensured.

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.

Second shaft 42 moves along second curved segment 5233 as first shaft 41 moves along first curved segment 5133, during which door 30 moves inward a distance d1 when opening a unit angle; as first shaft 41 continues to move along third curved segment 5134, second shaft 42 moves along fourth curved segment 5234, during which process door 30 moves inward a distance d2 when opened by 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 segment 5132 and the second curved segment 5232 are gradually decreased, so as to ensure that the door 30 moves slowly during the inward movement of the door when the door is opened by rotation, thereby ensuring the smoothness of the door 30 during the movement.

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

unlike the first three embodiments, the slot 50 is designed to allow the door 30 to continue to open from the first position to 90 °:

referring to fig. 9, when the door 30 is opened to 90 ° from the first state, the door 30 rotates only, the first shaft 41 does not change in position at the second positioning position 512, the door 30 rotates around the first shaft 41, and the second shaft 42 moves in 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 door 30 is in the 90 ° open state, front wall 31 of door 30 has a vertical gap γ from reference plane X, that is, front wall 31 of door 30 is located inside reference plane X and the distance γ > 0 from front wall 31 to reference plane X, so that refrigerator 30 can continue to open a small angle without interfering with the cabinet. In the present example, the door 30 may be opened > 90 deg., approximately 105 deg. to 110 deg. 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 door 30 is opened from 90 ° to the second end position 525, 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 third curved segment 5124 and fourth curved segment 5245 each extend in a direction toward front wall 31 and toward side walls 32, door 30 continues to rotate while side edges 33 move inward and forward a distance.

If the door 30 only rotates during the process, the movement trends of the first shaft 41 and the second shaft 42 are parallel and the door 30 shakes easily in a longer rotation range, so that the door 30 is set to move forwards and inwards for a certain distance during rotation at this stage, 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.

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, so that the motion stability of the box 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 trajectory line, the second groove 52 and the first groove 51 respectively correspond to the moving directions of the shaft relative to the groove during the opening of the 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 door 30 is in the closed state, the second shaft 42 and the starting end of the second groove 52 have a certain gap δ, so that the door 30 can be prevented from contacting the starting end of the second shaft 42 and the second groove 52 and the door 30 can be prevented from being bounced open when the door 30 is forcibly thrown.

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, and the first shaft 41 is a main shaft and the second shaft 42 is an auxiliary shaft among the two shafts 40, the acting force is mainly concentrated on the main shaft, therefore, 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, which can avoid the waste of material cost caused by the second shaft 42 being too long, and can avoid the problem that the groove 50 is easily separated from the shaft 40 when the door is inclined and the first shaft 41 is shorter, thereby saving material cost 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, has better stress and has enough strength to bear the acting force when the box door inclines; meanwhile, since the second groove 52 is long and occupies more space in the thickness direction of the refrigerator door, 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 double-shaft 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 liner of POM material may be provided on the inner wall of the slot 50, with the hinge shaft moving within the liner.

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 the upper end of the door 30 and a lower hinge plate 60b at the lower end of the 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 door 30 is provided with first and

second grooves

51 and 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 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 and 17, the door 30 includes a mounting block 70, the mounting block 70 is mounted on the 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 extending the plate body 71 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 door 30, and a lower mounting block 70b provided at a lower end of the door 30.

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

Referring specifically to fig. 17, the lower end of the 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 fixedly coupled to the 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 on an inner side of 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 on a rear side when the door compartment door 30 is closed.

The inner side of the lower hinge plate 60b is provided with a stopping part 603 extending outwards, when the door 30 is in a closed state, the locking hook 73 on the door 30 hooks the stopping part 603 on the hinge plate 60, so that the 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 door 30; when the door 30 is opened, the lock hook 73 is deformed by a force to overcome the blocking of the blocking portion 603, so as to disengage 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 door 30 to reinforce the connection strength between the root portion 731 and the door 30, so that only the hook portion 732 is deformed 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 door 30 may be provided with a first protrusion 37 and a second protrusion 38, when the door 30 is in the 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 disclosure, a limiting structure for limiting the door 30 from being opened to a maximum angle is disposed between the 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 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 door 30 rotates to the maximum allowable position, the stopper 80 abuts against the side 604 of the hinge plate 60, so as to stop the 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 fitting portion 81 is plate-shaped and is mounted in the lower receiving groove 35 of the door 30, and the plate body 71 of the lower mounting block 70b presses the fitting portion 81 against the door 30 from the lower end, thereby fixing the stopper 80 to the 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.

The limiting portion 82 is in a block shape and is formed by continuously extending the lower end portion of the reinforcing portion 83 downward, and the limiting portion 82 vertically extends out of the lower surface of the door 30, so that when the 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 lower hinge plate 60b, and the door 30 is forced to stop opening continuously.

The embedded part 81 of the limit block 80 is clamped between the lower mounting block 70b and the door 30, so that a connection structure between the limit block 80 and the door 30 is omitted, the product structure is simplified, and the 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 door 30, and when the 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 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 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, and the arrangement is such that the distance between the first shaft 41 and the second shaft 42 is relatively close, and the hinge movement is less influenced when the 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 door 30. However, in other embodiments, the first and

second grooves

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

Referring to this, the position of the door 30 corresponding to the upper hinge plate 60a is depressed downward to form a first groove 51 and a second groove 52; the door 30 is formed with a first groove 51 and a second groove 52 depressed upward at positions corresponding to the lower hinge plate 60b.

Specifically, the door 30 includes a door case 301, and a convex 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 protruding portion 302 can be integrally formed with the door shell 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.

The thickness of the door shell 301 is represented as H1, and the minimum wall thickness between the first groove 51 and the second groove 52 is represented as H2, then H2= (0.5-1) H1, so that the distance between the first shaft 41 and the second shaft 42 is short, the hinge movement is less affected when the door is slightly inclined 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 door 30; in other embodiments, the first shaft 41 and the second shaft 42 may be disposed on the door 30, and the first slot 51 and the second slot 52 may be disposed on the hinge plate 60; alternatively, in another embodiment, the first shaft 41 and the second slot 52 are provided on the hinge plate 60, and the second shaft 42 and the first slot 51 are provided on the door 30; or the first shaft 41 and the second groove 52 are provided on the door 30 and the second shaft 42 and the first groove 51 are provided on the hinge plate 60.

According to the present application, by setting the door 30 to move a first distance to the inner side and a distance to the front side when initially opened, the door 30 can be ensured not to interfere with the cabinet by moving the first distance to the inner side, and the problem of abrasion caused by the friction between the door seal 30a and the front side of the cabinet 10 can be avoided by moving the door seal a distance to the front side.

According to the application, the process that the box door 30 is opened in a rotating mode and moves 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 box door 30 shakes as the track is easy to be parallel when the box door rotates along the straight line or the 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, the curvilinear movement can ensure the fluency of the movement process of the door 30, and prevent the door 30 from moving hard inwards along the linear movement to cause a user's feeling of pause.

According to the application, when the door 30 is opened to the first state, the curve track of the movement of the first shaft 41 and the second shaft 42 at least comprises two curve segments with the curvatures changing in a reducing way, so that the distance of the inward movement of the door 30 in a unit angle is reduced, and the movement of the door 30 is slowed down in the process of inward movement of the door 30 after the door is opened in a rotating way, thereby ensuring the fluency of the movement process of the door 30.

According to the application, when the door 30 is opened continuously from 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 door 30 is prone to shaking when rotating within a large angle range is avoided, and the stability of the movement of the door 30 is guaranteed.

According to the application, in the whole process of opening the door 30, the first shaft moves from one end of the first groove to the other end, the second shaft moves from one end of the second groove to the other end, the movement process cannot be withdrawn, and the smoothness of opening the door 30 is guaranteed.

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;

the box door is rotatably connected with the box body so as to open or close the storage chamber, the box door is provided with a front wall and a side wall close to the hinge plate, and the box door is provided with a first groove matched with the first shaft and a second groove matched with the second shaft;

the limiting block is arranged on the box door; the limiting block is positioned at the front end of the hinge plate when the box door is closed and abuts against the side surface of the hinge plate when the box door is opened to the maximum so as to prevent the box door from being opened continuously;

when the box door is rotated and opened from a closed state to a first state, the first state is less than 90 degrees, the first shaft moves along a first straight line section and a first curve section in the first groove in sequence, and meanwhile, the second shaft moves along a second straight line section and a second curve section in the second groove in sequence; the first straight line segment extends towards the direction far away from the front wall and close to the side wall, so that the box door moves towards the inner side for a first distance and moves towards the front side for a certain distance, and the first curve segment extends towards the direction close to the side wall and the front wall, so that the box door moves towards the inner side for a second distance.

2. The refrigerator as claimed in claim 1, wherein the door is rotated only about the first axis when the door is opened up to 90 ° from the first state.

3. The refrigerator according to claim 1, wherein when the door is opened by 90 °, the first shaft moves along a third curved section in the first groove while the second shaft moves along a fourth curved section in the second groove; the third curved section and the fourth curved section both extend in a direction adjacent to 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 as claimed in claim 1, wherein the first axis is closer to the side wall and farther from the front wall than the second axis when the 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 as claimed in 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 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 door has a gap with a side of the cabinet in a vertical direction when the door is opened by 90 °.

9. The refrigerator as claimed in claim 1, wherein the door is provided with a receiving groove; the refrigerator further includes:

the mounting block is mounted in the accommodating groove, and the first groove and the second groove are formed in the mounting block;

the limiting block is arranged in the accommodating groove and located on the front side of the mounting block.

10. The refrigerator according to claim 9, wherein the stopper comprises:

an embedded part clamped between the groove bottom of the accommodating groove and the mounting block;

the reinforcing part is connected with the embedding part in an included angle;

the limiting part is arranged at one end, far away from the embedded part, of the reinforcing part, and the limiting part can abut against the hinge plate to limit the maximum opening angle of the box door.