CN115682600A - refrigerator - Google Patents

Abstract

The invention provides a refrigerator, and belongs to the technical field of household appliances. The refrigerator comprises a mounting block arranged on a refrigerator door, the mounting block is provided with a plate body and an extension part, and a first groove and a second groove extend to the extension part from the end surface of the plate body; the thickness of the plate body is recorded as L1, the minimum wall thickness between the first groove and the second groove is recorded as L2, and then L2= (0.5-1) L1; 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 section and a first curve section, and the moving track of the second shaft relative to the second groove is a second straight line section and a second curve section; 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

technical field

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

Background technique

In related technologies, the hinge structure of the refrigerator door is mostly in the form of a single shaft. The rotation of the refrigerator door around the hinge axis is realized through the cooperation of the hinge shaft and the shaft sleeve of the refrigerator door. When the refrigerator door with this hinge structure is opened, the corner of the refrigerator door will be beyond the sides of the enclosure.

For embedded refrigerators, the refrigerator is generally placed in a cabinet, and it is required that the corners of the refrigerator door cannot exceed the size of the box body too much during the process of opening the door to 90°, otherwise the use of the refrigerator will be limited.

Contents of the invention

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

For this reason, the present application aims to provide a refrigerator, the hinge structure of which makes the door of the refrigerator not protrude or protrude too much beyond the side of the box body when opened.

According to the refrigerator of the present application, it includes: a box body forming a storage room; a hinge plate fixed on the box body, and a first shaft and a second shaft are arranged on the hinge plate; the refrigerator door is rotatably connected with the box body to open Or to close the storage room, the refrigerator door has a front wall and a side wall close to the hinge plate; the installation block is arranged on the refrigerator door, the installation block has a plate body, and an extension protruding from the plate body, the first slot and the second The second groove extends from the end surface of the plate body to the extension part; the thickness of the plate body is recorded as L1, and the minimum wall thickness between the first groove and the second groove is recorded as L2, then L2=(0.5～1)L1; refrigerator door When rotating from the closed state to the first state, the first state is less than 90°, the moving track of the first axis relative to the first groove is the first straight line segment and the first curved segment, and at the same time the moving track of the second axis relative to the second groove It is the second straight line segment and the second curved line segment; the first straight line segment extends away from the front wall and close to the side wall, so that the refrigerator door moves a first distance inwardly and a certain distance to the front side, and the first curved line segment moves closer to the side wall. The direction of the side walls and the front wall extends such that the refrigerator door moves inwardly a second distance.

In some embodiments of the refrigerator of the present application, when the refrigerator door continues to open to 90° from the first state, the door body only rotates with the first axis as the center.

In some embodiments of the refrigerator of the present application, when the door of the refrigerator continues to be opened from 90°, the moving track of the first axis relative to the first groove is a third curve segment, while the moving track of the second axis relative to the second groove is a fourth curve segment segment, the third curved segment, and the fourth curved segment all extend toward the direction close to the side wall and the front wall.

In some embodiments of the refrigerator of the present application, the included 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 length of the first straight line segment is shorter than that of the first curved line segment, and the length of the second straight line segment is shorter than that of the second curved line segment.

In some embodiments of the refrigerator of the present application, the first axis is closer to the side wall and farther away from the front wall than the second axis, and the second straight line extends in a direction away from the front wall and close to the side wall; extending in a direction close to the side wall.

In some embodiments of the refrigerator of the present application, when the refrigerator door is in a closed state, the first hinge axis is located at the end of the first track groove, and the second hinge axis is located at the end of the second track groove; There are gaps at the ends of the two track grooves.

In some embodiments of the refrigerator of the present application, when the refrigerator door is opened 90°, there is a vertical gap between the front wall of the refrigerator door and the side of the box body.

In some embodiments of the refrigerator of the present application, an installation groove is provided on the door of the refrigerator, and the installation block is fastened in the installation groove by screws.

In some embodiments of the refrigerator of the present application, the installation block is made of POM.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

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

Fig. 2 is a top view of a refrigerator according to an embodiment of the present application;

Figure 3 is an enlarged view of direction A in Figure 2;

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

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

Fig. 6 is a second view of the hinge when the refrigerator door is in a closed state according to the embodiment of the present application;

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

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

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

Fig. 10 is a view of a refrigerator door in a maximum open state according to an embodiment of the present application;

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

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 the hinge at the upper right corner of the refrigerator according to the embodiment of the present application;

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 the lower end of a refrigerator door according to an embodiment of the present application;

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

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;

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 view of another example of a refrigerator door according to an embodiment of the present application;

Fig. 21 is a cross-sectional view of another example of a refrigerator door according to an embodiment of the present application;

In the above figures: 1, refrigerator; 10, cabinet; 20, storage room; 21, upper storage room; 22, lower storage room;

30. Refrigerator door; 301. Door shell; 302. Raised part; 303. First raised part; 304. Second raised part; 31. Front wall; 32. Side wall; 33. Side edge; 34. Upper Installation groove; 35, lower installation groove; 37, first convex portion; 38, second convex portion; 39, gap groove;

40. axis; 41. first axis; 42. second axis;

50, groove;

51. The first groove; 511. The first positioning position; 512. The second positioning position; 513. The third positioning position; 514. The first end position; 5113. The first straight line segment; 5132. The first curved line segment; The first curve segment; 5134, the second curve segment; 5124, the third curve segment;

52, the second groove; 521, the first guiding position; 522, the second guiding position; 523, the third guiding position; 524, the fourth guiding position; 525, the second end position; 5213, the second straight line segment; 5232, The second curve segment; 5233, the second curve segment; 5234, the fourth curve segment; 5245, the fourth curve segment;

60, hinge plate; 60a, upper hinge plate; 60b, lower hinge plate; 601, connection part; 602, extension part; 603, stop part;

70, installation block; 70a, upper installation block; 70b, lower installation block; 71, plate body; 72, extension part; 73, lock hook; 731, root connection part; 732, hook part;

80. Limiting block; 81. Embedded part; 82. Limiting part; 83. Reinforcing part;

90, shaft sleeve; 100, cabinet.

Detailed ways

In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention.

The terms "first", "second", "third" and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" and "fourth" may expressly or implicitly include one or more of such features.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

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

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

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

The box body 10 may include: an inner case defining and forming the storage compartment 20 ; an outer case connected to an outer side of the inner case to form an appearance of the refrigerator 1 ; and an insulator provided between the inner case and the outer case to insulate the storage compartment 20 from heat.

The box body 10 may include a horizontal partition partitioning the storage room 20 into an upper storage room 21 and a lower storage room 22 and a vertical partition partitioning the lower storage room 22 from one side to the other. The upper storage room 21 may be used for a refrigerator for storing food in a refrigeration mode by keeping air at a temperature of about 0 to 5° C. A freezer compartment for storing food in freezer mode.

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

The refrigerator 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 the refrigerator door 30 to rotatably support the refrigerator door 30 .

For the convenience of description, with reference to Fig. 2 and Fig. 3, the side near the hinge among the left and right sides of the refrigerator door 30 is called the side wall 32, for example, when the hinge is located on the right side of the box body 10, the right side of the refrigerator door 30 is called the side wall 32 ; when the hinge is located on the left side of the box body 10 , the left side of the refrigerator door 30 is the side wall 32 . The front wall 31 and the side wall 32 of the refrigerator door 30 meet to form a side edge 33 .

Normally, the plane where the side of the box body 10 is close to the hinge is defined as a reference plane X, the side of the reference plane X close to the cabinet 100 is the outside, and the opposite side is the inside; the refrigerator is placed in the cabinet 100 When used in the middle, in order to prevent factors such as uneven ground and deformation of the cabinet, the distance between the cabinet and the reference plane X is usually α = 5mm. In order to ensure that the refrigerator door 30 of the refrigerator is opened normally, the side edge 33 of the refrigerator door 30 cannot exceed the reference plane X too much during the rotation process, otherwise, the side edge 33 collides with the cabinet and cannot be opened normally.

Therefore, for the refrigerator whose hinge is arranged on the left end or the right end of the refrigerator door 30, it is necessary for the refrigerator door 30 to be able to move to the inside direction during the rotation process (the inside direction is the direction from the hinge to the middle of the refrigerator on the horizontal plane), so as to avoid side edges. 33 interferes with the cabinet 100 . For the hinge at the right end of the refrigerator door 30, moving the refrigerator door 30 to the inside means that the refrigerator door 30 moves to the left; for the hinge at the left side of the refrigerator door 30, moving the refrigerator door 30 to the inside means The door 30 moves 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 driving the refrigerator door 30 to move inwardly while being rotated and opened.

Specifically, referring to FIG. 3 , the hinge is in the form of a biaxial hinge, that is, the shaft 40 includes a first shaft 41 and a second shaft 42 , and the slot 50 includes a first slot 51 and a second slot 52 . The first shaft 41 fits in the first groove 51, and the second shaft 42 fits in the second groove 52. When the refrigerator door 30 is rotated to open or close, the first shaft 41 moves relatively in the first groove 51, and the second shaft 42 moves relatively in the first groove 51. The two shafts 42 relatively move in the second groove 52 .

Due to the relative motion relationship between the first slot 51 and the first shaft 41, and between the second slot 52 and the second shaft 42, if the refrigerator door 30 is in the process of opening, the first slot 51 and the second slot 52 If it is a static reference object, it means that the first shaft 41 moves in the first slot 51 and the second shaft 42 moves in the second slot 52 . For the convenience of description, this application uses the first groove 51 and the second groove 52 as the reference object, and the first shaft 41 and the second shaft 42 move relative to the reference object for introduction:

Referring to FIG. 4 , a specific example of the relative positions of the first shaft 41 and the second shaft 42 is shown in the figure: when the first shaft 41 and the second shaft 42 are fixed relative to the box body 10, the first slot 51 and the second slot 52 are set When on the refrigerator door 30 , the first shaft 41 is closer to the side wall 32 than the second shaft 42 , and farther away from the front wall 31 . The vertical distance L1 between the first axis 41 and the second axis 42 in the front-rear direction satisfies 2.5mm≤L1≤10mm, and the vertical distance L2 between the first axis 41 and the second axis 42 in the left-right direction satisfies 7.5mm≤L2≤30mm, In the current example, set L1=5mm, L2=15mm, and the thickness of the refrigerator door 30 is between 44mm and 53mm, so that the distance between the corners of the refrigerator door 30 always exceeding the reference plane X during the door opening process is relatively small, specifically less than 3mm .

Referring to Fig. 5, when the refrigerator door 30 is in the closed state, the first axis 41 is located at the end of the first groove 51, and the second axis 42 is located at the end of the second groove 52, thus, the first groove 51 and the second groove 52 can be determined. The initial end of the groove 52, the first groove 51 generally extends from the initial end to the direction close to the side wall 32 and the front wall 31 to the other end, and the second groove 52 generally extends from the initial end to the direction away from the front wall 31 and the front wall 31. The direction close to the side wall 32 extends to the other end. The extension of the first groove 51 and the second groove 52 toward the direction close to the side wall 32 can make the refrigerator door 30 move inward relative to the box body 10 .

When the refrigerator door 30 was rotated to 90° from the closed state, the motion track of the first shaft 41 relative to the first groove 51 generally extended toward the direction close to the front wall 31 and the side wall 32, and the direction of the second shaft 42 relative to the second groove 52 The motion trajectory generally extends away from the front wall 31 and in a direction close to the side wall 32, so that the refrigerator door 30 moves inward for a certain distance while rotating, so as to prevent the side wall 32 or the side edge 33 from exceeding the refrigerator door 30 during opening. The problem that the reference plane X interferes with the cabinet and cannot be opened normally.

About the first embodiment of the groove 50 in the present application:

Referring to Fig. 6 to Fig. 8, the refrigerator door in Fig. 8 is in the first state, and the opening angle of the refrigerator door in Fig. 7 is smaller than the first state. When the refrigerator door 30 is rotated from the closed state to the first state, the first state is less than 90°, the first shaft 41 moves from the first positioning position 5111 of the first slot 51 to the second positioning position 512, and at the same time, the second shaft 42 moves from the first guiding position 521 of the second groove 52 to the second guiding position 522; 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 refrigerator door 30 is rotating Move a certain distance inward, which can prevent the side wall 32 or side edge 33 of the refrigerator door 30 from touching the cabinet.

During this movement, the side edge 33 of the refrigerator door 30 can rotate outside the reference plane X and move towards the inside. The distance β of the side edge 33 beyond the reference plane X is always smaller than the distance α (5mm) between the reference plane X and the cabinet, thereby ensuring that the side edge 33 will not touch the cabinet and interfere. The outer side of the plane X avoids the user's frustration when opening the door when the refrigerator door 30 moves a relatively large distance to the inner side of the reference plane X.

In the above, the movement track of the first shaft 41 from the first positioning position 5111 to the second positioning position 512 and the movement track of the second shaft 42 from the first guiding position 521 to the second guiding position 522 has a curved section. The motion track of the curved section can ensure the smoothness of the motion process of the refrigerator door 30, and avoid the user's sense of stuttering caused by the refrigerator door 30 moving inwardly when moving along a long straight line.

About the second embodiment of groove 50 in the present application:

The difference from the first embodiment lies in the specific shape of the groove 50 when the refrigerator door 30 is opened from the closed state to the first state: when the refrigerator door 30 is rotated from the closed state to the first state, the first shaft 41 will move from the first state to the first state. The first positioning position 511 of the groove 51 moves 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 along the first curve segment 5132 (shown in FIG. 8); at the same time, the second shaft 42 moves from the first guide position 521 of the second groove 52 along the second straight line segment 5213 to the third guide position 523, and then moves from the third guide position 523 along the second curve segment 5232 to the second guide position 522 .

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 close to the side wall 32. In this way, the first axis 41 approaches the side wall 32. The side wall 32 moves away from the direction of the front wall 31, which is equivalent to the refrigerator door 30 with the first groove 51 moving the first distance away from the side wall 32 (inside) and moving towards the front wall 31 (front side) For a certain distance, moving the refrigerator door 30 inward can prevent the side edge 33 from touching the cabinet too much beyond the reference plane X; because the corner of the refrigerator door 30 will rotate backward relative to the first axis 41 when the refrigerator door 30 is just opened, As the refrigerator door 30 moves inwardly, the door seal 30a on the refrigerator door 30 will contact and rub against the front side of the box body 10. In this application, the refrigerator door 30 is set to move forward for a certain distance, which can avoid the door The friction between the seal 30a and the front side of the box body 10 improves the service life of the door seal 30a.

The third guiding position 523 is farther away from the front wall 31 and closer to the side wall 32 than the first guiding position 521 , and the second straight line segment 5213 extends away 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 direction close to the front wall 31 and the side wall 32 to the second positioning position 512, The refrigerator door 30 is moved inward by a second distance.

The second guiding position 522 is farther away 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 curvature center of the first curve segment 5132 is located on the side of the first curve segment 5132 close to the front wall; the curvature center of the second curve segment 5232 is located on the side of the second curve segment 5232 close to the side edge.

The process of the refrigerator door 30 moving inward has two different trajectories, that is, the shaft 40 first moves along a straight line and then along a curve relative to the groove 50, which can prevent the trajectories from being easy to approach parallel when the refrigerator door only rotates along a straight line or only along a large angle along a curve. And the problem that the refrigerator door 30 shakes occurs.

In other embodiments, when the refrigerator door 30 is opened to the first state, the shaft 40 may first move along a curve and then move along a straight line relative to the groove 50 , or the movement track of the shaft 40 relative to the groove 50 may be multi-section curves and straight lines intersecting.

In some embodiments, the angle between the first straight line segment 5113 and the second straight line segment 5213 is greater than 45°, which can prevent the refrigerator door 30 from shaking when the angle between the first straight line segment 5113 and the second straight line segment 5213 is small and close to parallel , ensuring the stability of the refrigerator door 30 during rotation.

When the first shaft 41 is at the third positioning position 513 and the second shaft 42 is at the third guiding position 523 (the state shown in FIG. 7 ), the opening angle of the refrigerator door 30 is about 5-10°, and the side edge 33 is at this opening angle. The range β<2mm beyond the reference plane X. When the first shaft 41 is at the second positioning position 512 and the second shaft 42 is 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 side edge 33 is at this opening angle. The distance β beyond the reference plane X of the range is <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 shorter than the length of the first curved segment 5132, the length of the second straight line segment 5213 is shorter than the second curved segment 5232, so that the first shaft 41 and the second shaft 42 only move a small distance straight at the beginning, and then carry out a larger angle curve The movement and the curved movement can ensure the smoothness of the refrigerator door 30 in the movement process, and avoid the user's feeling of stuttering caused by the refrigerator door 30 moving inward when moving along a straight line.

About the third embodiment of groove 50 in the present application:

The difference from the second embodiment is: continue to refer to FIG. 8 , both the first curve segment 5132 and the second curve segment 5232 include at least two curve segments with decreasing curvature.

In this way, the curvature of the curve becomes smaller so that the distance that the refrigerator door 30 moves inward within a unit angle becomes smaller, that is to say, when the refrigerator door 30 rotates to open and moves inward, the movement slows down, ensuring smooth movement of the refrigerator door 30 sex.

In some embodiments of curvature changes, the first curved segment 5132 includes sequentially connected first curved segment 5133 and third curved segment 5134, and the second curved segment 5232 includes sequentially connected second curved segment 5233 and The fourth curve segment 5234 ; the curvature of the third curve segment 5134 is smaller than that of the first curve segment 5133 , and the curvature of the fourth curve segment 5234 is smaller than that of the second curve segment 5233 .

When the first axis 41 moves along the first curve segment 5133, the second axis 42 moves along the second curve segment 5233. During this process, the refrigerator door 30 moves inwards at a distance of d1 when the unit angle is opened; the first axis 41 continues When moving along the third curve segment 5134 , the second shaft 42 moves along the fourth curve segment 5234 , during this process, the refrigerator door 30 moves inward with a distance of d2 when opening a unit angle, and 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 may also include three or more curve segments.

In other embodiments of curvature changes, the curvatures of the first curve section 5132 and the second curve section 5232 are gradually reduced respectively, which can also ensure that the movement of the refrigerator door 30 is slowed down during the process of rotating and opening the door and moving inward, ensuring The smoothness of the refrigerator door 30 in the motion process.

About the fourth embodiment of groove 50 in the present application:

The difference from the first three embodiments is that the structure of the refrigerator door 30 is designed when the refrigerator door 30 continues to open to 90° from the first state:

Referring to Fig. 9, when the refrigerator door 30 continues to open to 90° from the first state, the refrigerator door 30 only rotates, the position of the first shaft 41 at the second positioning position 512 remains unchanged, and the refrigerator door 30 is centered on the first shaft 41. The center of the circle rotates, and the second shaft 42 relatively moves from the second guiding position 522 to the fourth guiding position 524 in the second groove 52 along an arc. The fourth guiding position 524 is farther away 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, there is a vertical gap γ between the front wall 31 of the refrigerator door 30 and the reference plane X, that is to say, the front wall 31 of the refrigerator door 30 is located at the center of the reference plane X. The distance from the inner and front wall 31 to the reference plane X is γ>0, so that the refrigerator 30 can continue to open at a small angle without interfering with the cabinet. In the current example, when the refrigerator is placed in the cabinet, the refrigerator door 30 can be opened >90°, approximately between 105°˜110°.

About the fifth embodiment of the groove 50 in the present application:

The difference from the previous four embodiments is that in order to take into account that the refrigerator can be opened to a larger angle when it is not embedded in a cabinet, this embodiment extends the design of the first slot 51 and the second slot 52:

Referring to Figure 10, when the refrigerator door 30 continues to open from 90°, the first shaft 41 moves from the second positioning position 512 along the third curve segment 5124 to the first end position 514, and the second shaft 42 moves from the fourth guiding position 524 Move to the second end position 525 along the fourth curve segment 5245 . Wherein, the third curve segment 5124 and the fourth curve segment 5245 both extend toward the front wall 31 and the side wall 32, and the side edge 33 moves inward and forward for a certain distance while the refrigerator door 30 continues to rotate.

If the refrigerator door 30 only rotates during this process, it is easy to appear that the movement tendencies of the first shaft 41 and the second shaft 42 are parallel and the refrigerator door 30 shakes in a relatively long rotation range. The refrigerator door 30 moves forward and inward for a certain distance when rotating, so that there is an included angle at any point between the motion track of the first shaft 41 and the motion track of the second shaft 42 .

Specifically, the angle between the tangent line between the motion track of the first shaft 41 and the motion track of the second shaft 42 at any corresponding point is >30°, which ensures the stability of the refrigerator door 30 .

In other embodiments, the trajectory of the first shaft 41 moving from the second positioning position 512 to the first end position 514 and the second shaft 42 moving from the fourth guiding position 524 to the second end position 525 may also be a straight line.

In the above description, the trajectory line, the extending directions of the second groove 52 and the first groove 51 respectively correspond to the movement direction of the axis relative to the groove when the refrigerator door 30 is opened.

Based on the above-mentioned structure of the groove 50, in some embodiments of the present application, referring to FIG. 11, when the refrigerator door 30 is in the closed state, there is a certain gap δ between the second shaft 42 and the starting end of the second groove 52, so that the refrigerator door 30 can prevent the second shaft 42 from coming into contact with the starting end of the second groove 52 when the refrigerator door 30 is thrown hard to make the refrigerator door 30 bounce 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, among the two shafts 40, the first shaft 41 is the main shaft, and the second shaft 42 is the auxiliary shaft, The active force is mainly concentrated on the main shaft, therefore, the length of the first shaft 41 is set to be longer than that of the second shaft 42, correspondingly, the first groove 51 is deeper than the second groove 52, so that the material cost caused by the second shaft 42 being too long can be avoided. It is wasteful, and at the same time, it can avoid the problem that the slot 50 and the shaft 40 are easily separated when the refrigerator door is tilted and the first shaft 41 is short, and the material cost is saved on the basis of ensuring the reliability of the structure.

In addition, since the active force is concentrated on the first shaft 41, the diameter of the first shaft 41 can be set larger than that of the second shaft 42. In this way, the first shaft 41 is thicker, better in force, and has sufficient strength to withstand the inclination of the refrigerator door. At the same time, since the second groove 52 is longer, it occupies more space in the thickness direction of the refrigerator door, so the second axis 42 is set thinner, and the second groove 52 can be narrower accordingly, so that the refrigerator door can be designed Thinner, the overall thickness of the refrigerator can be smaller, with 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 covered with a shaft sleeve 90 , and the shaft sleeve 90 can rotate relative to the shaft 40 . During the movement of the biaxial hinge, the shaft sleeve 90 rotates relative to the shaft 40, and at the same time, sliding occurs between the shaft sleeve and the groove, which can reduce friction and improve the service life. The shaft sleeve 90 can be made of wear-resistant POM, 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 bush made of POM may also be provided on the inner wall of the groove 50, and the hinge shaft moves in the bush.

In some embodiments of the refrigerator of the present application, referring to Fig. 13 and Fig. 16, the hinge specifically includes a hinge plate 60 fixedly connected to the box body 10, and the first shaft 41 and the second shaft 42 are connected to the hinge plate 60 to form a rotating 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 connecting portion 601 connected to the box body 10 ; and an extension portion 602 extending forward from the connecting portion 601 and having a horizontal plate shape. The connecting portion 601 may be fastened to the case body 10 by fasteners such as screws, pins and bolts. The first shaft 41 and the second shaft 42 may be formed on the extension part 602 .

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

Specifically referring to FIG. 13 , for the upper hinge plate 60 a, the connecting portion 601 is connected to the top of the box body 10 , and the first shaft 41 and the second shaft 42 extend vertically downward on the extension portion 602 . Corresponding to the position of the upper hinge plate 60a, the upper end of the refrigerator door 30 is provided with a first slot 51 and a second slot 52 .

Referring specifically to FIG. 16 , for the lower hinge plate 60 b , the first shaft 41 and the second shaft 42 extend upward on the hinge plate 60 . Corresponding to the position of the lower hinge plate 60b, the lower end of the refrigerator door 30 is provided with a first slot 51 and a second slot 52 .

In some embodiments of the present application, referring to Fig. 14 and Fig. 17, the refrigerator door 30 includes a mounting block 70, and the mounting block 70 is installed on the refrigerator door 30 at a position opposite to the hinge plate 60, the first groove 51 and the second groove 52 Set on the mounting block 70.

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

The installation block 70 includes an upper installation block 70 a disposed on the upper end of the refrigerator door 30 , and a lower installation block 70 b disposed on the lower end of the refrigerator door 30 .

14, the upper end of the refrigerator door 30 is correspondingly provided with an upper installation groove 34, and the upper installation block 70a is inserted into the upper installation groove 34, and then the plate body 71 is fastened to the refrigerator door 30 by screws or the like.

Specifically referring to FIG. 17 , the lower end of the refrigerator door 30 is correspondingly provided with a lower installation groove 35 , and the lower installation block 70 b is inserted into the lower installation 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 POM has the characteristics of strong friction resistance, which can improve the service life of the hinge.

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

The inner side of the lower hinge plate 60b is provided with an outwardly extending stop portion 603. When the refrigerator door 30 is in the closed state, the lock hook 73 on the refrigerator door 30 catches the stop portion 603 on the hinge plate 60, thereby locking the refrigerator. The door 30 prevents the refrigerator door 30 from being closed tightly and affects the refrigeration and freezing effect of the refrigerator;

The locking hook 73 may include a root portion 731 and a hook portion 732 . The root connection portion 731 is connected to the plate body 71 , and the hook portion 732 is connected to the root connection portion 731 and bent backward and outward. Screws pass through the root joint 731 to connect with the refrigerator door 30 to strengthen the connection strength between the root joint 731 and the refrigerator door 30 , so that only the hook 732 is deformed when the lock hook 73 disengages from the stopper 603 .

The free ends of the hook portion 732 and the stop portion 603 are arc-shaped, which is beneficial for the hook portion 732 to move along the arc to catch the stop portion 603 or disengage from the stop portion 603 .

In some embodiments, referring to FIG. 17 and FIG. 19 , the refrigerator door 30 may be provided with a first convex portion 37 and a second convex portion 38. When the refrigerator door 30 is in a closed state, the first convex portion 37 and the second convex portion The protrusions 38 are generally arranged front and back, and a clearance groove 39 is formed between the first protrusion 37 and the second protrusion 38, and the part 731a of the root joint 731 is inserted into the clearance groove 39, so that the first protrusion The limit of the portion 37 and the second convex portion 38 can prevent the root joint portion 731 from being deformed in the front-rear direction.

It should be noted that the locking hook 73 can also be arranged on the upper mounting block 70a, and the stopper 603 is correspondingly arranged on the upper hinge plate 60a.

In some embodiments of the present application, a limiting structure is provided between the refrigerator door 30 and the hinge plate 60 to limit the opening of the refrigerator door 30 to a maximum angle, so as to avoid damage to the installation block 70 when the door is opened vigorously to a certain angle.

Specifically, referring to Fig. 15 and Fig. 16, the lower end of the refrigerator door 30 is provided with a limiting block 80, which is located at the front end of the lower mounting block 70b, and when the refrigerator door 30 rotates to the maximum position allowed, the limiting block 80 and the hinge plate The sides 604 of the refrigerator door 60 are in contact with each other, so as to stop the refrigerator door 30 from continuing to rotate.

Referring to FIG. 17 , the limiting block 80 may be a sheet metal part, including an embedded part 81 , a limiting part 82 and a reinforcing part 83 .

The embedded part 81 is plate-shaped, and is installed in the lower installation groove 35 of the refrigerator door 30. The plate body 71 of the lower installation block 70b presses the embedded part 81 against the refrigerator door 30 from the lower end, thereby realizing the positioning of the limiting block 80. Fixing on the refrigerator door 30.

The reinforcing part 83 and the embedded part 81 form a vertical angle, that is, the embedded part 81 is in a horizontal state and the reinforcing part 83 is in a vertical state in the assembled state; the reinforcing part 83 is formed by bending the front end of the embedded part 81 downward.

The limiting part 82 is block-shaped, and is formed by extending downwards from the lower end of the reinforcing part 83. The limiting part 82 extends vertically out of the lower surface of the refrigerator door 30, so that the refrigerator door 30 drives the limiting block 80 to rotate to the maximum angle. , the limiting portion 82 will be blocked by the side of the lower hinge plate 60b, thereby forcing the refrigerator door 30 to stop opening.

The embedded part 81 of the limiting block 80 is clamped between the lower mounting block 70b and the refrigerator door 30, and the connection structure between the limiting block 80 and the refrigerator door 30 is omitted, which simplifies the product structure and has the advantage of simple structure.

It should be noted that the limiting block 80 can also be arranged at the upper mounting block 70a of the refrigerator door 30. When the refrigerator door 30 drives the limiting block 80 to rotate to the maximum angle, the limiting part 82 will be closed by the upper hinge plate 60a. The side blocks, thereby forcing the refrigerator door 30 to stop and continue to open.

If the distance between the first axis 41 and the second axis 42 is relatively long, the hinge movement will be greatly affected when the refrigerator door 30 is tilted or the two axes are not parallel, and even the normal rotation of the hinge will be affected. Therefore, in this application In some embodiments, 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, set in this way , the distance between the first axis 41 and the second axis 42 can be made closer, and the hinge movement is less affected when the refrigerator door is slightly inclined or the two axes are not parallel.

In the above embodiment, the first groove 51 and the second groove 52 are arranged on the installation block 70 , and then the installation block 70 is installed on the refrigerator door 30 . However, in other embodiments, the first groove 51 and the second groove 52 may also be directly disposed on the refrigerator door 30 .

For reference, the position corresponding to the upper hinge plate 60a on the refrigerator door 30 is depressed downward to form the first groove 51 and the second groove 52; the position corresponding to the lower hinge plate 60b on the refrigerator door 30 is depressed upward to form the first groove 51 and the second groove 52 .

Specifically, the refrigerator door 30 includes a door shell 301 , and a protrusion 302 vertically extending from the door shell 301 to the inside thereof. The first groove 51 and the second groove 52 are formed by the outer end surface of the door shell 301 being inwardly recessed onto the raised portion 302 .

Wherein, the protruding part 302 can be integrally formed with the door shell 301 . The protruding part 302 includes a first protruding part 303 and a second protruding part 304 , the shape of the first protruding part 303 corresponds to the first groove 51 , and the shape of the second protruding part 304 corresponds to the second groove 52 .

The thickness of the door shell 301 is denoted as H1, the minimum wall thickness between the first groove 51 and the second groove 52 is denoted as H2, then H2=(0.5～1)H1, set like this, can make the first shaft 41 and the second The distance between the shafts 42 is relatively short, and the movement of the hinge is less affected when the refrigerator door is slightly inclined or the two shafts are not parallel, and the strength of the mounting block 70 will not be affected at the same time.

In the above embodiment, the first shaft 41 and the second shaft 42 are arranged on the hinge plate 60, and the first groove 51 and the second groove 52 are arranged on the refrigerator door 30; in other embodiments, the first shaft 41 And the second shaft 42 can be set on the refrigerator door 30, and the first slot 51 and the second slot 52 are set on the hinge plate 60; or, in another embodiment, the first shaft 41 and the second slot 52 are set On the hinge plate 60, the second shaft 42 and the first slot 51 are arranged on the refrigerator door 30; or the first shaft 41 and the second slot 52 are arranged on the refrigerator door 30, and the second shaft 42 and the first slot 51 are arranged on the On the hinge plate 60.

According to the present application, by setting the refrigerator door 30 to move a first distance to the inside and a certain distance to the front side when it is initially opened, moving the first distance to the inside can ensure that the refrigerator door 30 will not interfere with the cabinet and move a certain distance to the front side. The problem of abrasion caused by friction between the door seal 30a and the front side of the box body 10 can be avoided.

According to the present application, by dividing the process of the refrigerator door 30 rotating and opening and moving inwards into two stages, that is, the axis relative to the groove first moves along a straight line and then along a curved line, it is possible to prevent the refrigerator door from only moving along a straight line or only along a curved line at a large angle. When rotating, the trajectories tend to be close to parallel and the problem of shaking of the refrigerator door 30 occurs; and the first axis 41 and the second axis 42 only move a small distance in a straight line at the beginning, and then perform a large-angle curved motion later, The curved motion can ensure the smoothness of the refrigerator door 30 in the motion process, and avoid the user's feeling of being stunned when the refrigerator door 30 moves inwardly in a straight line.

According to the present application, when the refrigerator door 30 is opened to the first state, the curved trajectory of the movement of the first shaft 41 and the second shaft 42 includes at least two curved segments with decreasing curvature, so that the refrigerator door 30 moves inwardly within a unit angle. The distance of the refrigerator door 30 becomes smaller, and the movement of the refrigerator door 30 is slowed down during the process of rotating and opening the door and moving inward, so as to ensure the smoothness of the refrigerator door 30 movement process.

According to the present application, when the refrigerator door 30 continues to open from 90°, the trajectory of the first axis 41 is the third curve segment 5124, and the trajectory of the second axis 42 is the fourth curve segment 5245, so that the trajectory of the first axis 41 There is an included angle between the motion trajectory and the motion trajectory of the second axis 42 at any point, which avoids the problem that the refrigerator door 30 is easy to shake when it rotates within a large angle range, and ensures the stability of the refrigerator door 30 movement.

According to the present application, during the whole process of opening the refrigerator door 30, the first shaft moves from one end of the first slot to the other end, and the second shaft moves from one end of the second slot to the other end, and the movement process will not retreat, ensuring The smoothness of the refrigerator door 30 opening.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A refrigerator, characterized in that, comprising: The box body is formed with a storage room; The hinge plate is fixed on the box, and the hinge plate is provided with a first shaft and a second shaft; a refrigerator door rotatably connected with the box body to open or close the storage compartment, the refrigerator door having a front wall and a side wall close to the hinge plate; The installation block is arranged on the refrigerator door, the installation block has a board body, and an extension protruding from the board body, the first groove and the second groove extend from the end surface of the board body to the extension Ministry; The thickness of the plate body is denoted as L1, the minimum wall thickness between the first groove and the second groove is denoted as L2, then L2=(0.5～1)L1; When the refrigerator door is rotated from the closed state to the first state, the first state is less than 90°, and the moving track of the first axis relative to the first slot is a first straight line segment and a first curved segment, and the The moving track of the second shaft relative to the second groove is a second straight line segment and a second curved line segment; the first straight line segment extends away from the front wall and close to the side wall, so that the refrigerator door moves inward for the second A distance, moving a distance to the front side, the first curved section extends toward the side wall and the front wall, so that the refrigerator door moves a second distance inward. 2 . The refrigerator according to claim 1 , wherein when the refrigerator door continues to open to 90° from the first state, the door body only rotates around the first axis. 3. The refrigerator according to claim 1, characterized in that, when the refrigerator door continues to open from 90°, the moving track of the first axis relative to the first groove is a third curve segment, and at the same time, the first axis The moving track of the two shafts relative to the second groove is a fourth curved segment, and both the third curved segment and the fourth curved segment extend towards the side wall and the front wall. 4. The refrigerator according to claim 1, wherein the angle between the first straight line segment and the second straight line segment is larger than 45°. 5 . The refrigerator according to claim 1 , wherein the length of the first straight line segment is shorter than that of the first curved line segment, and the length of the second straight line segment is shorter than that of the second curved line segment. 6. The refrigerator according to claim 1, wherein when the refrigerator door is in a closed state, the first shaft is closer to the side wall than the second shaft and farther away from the front wall, and the second shaft is closer to the side wall than the second shaft. The two straight line segments extend away from the front wall and close to the side wall; the second curved line extends away from the front wall and close to the side wall. 7. The refrigerator according to claim 1, wherein when the refrigerator door is in a closed state, the first hinge shaft is located at the end of the first track groove, and the second hinge shaft is located at the end of the first track groove. The end of the second track groove; the second hinge shaft has a gap with the end of the second track groove. 8 . The refrigerator according to claim 1 , wherein when the refrigerator door is opened 90°, there is a vertical gap between the front wall of the refrigerator door and the side of the box. 9 . The refrigerator according to claim 1 , wherein an installation groove is provided on the refrigerator door, and the installation block is fastened in the installation groove by screws. 10. The refrigerator according to claim 1, wherein the installation block is made of POM.

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