Refrigerator

Abstract

The application provides a refrigerator, which comprises a cabinet, a door body, a hinge with a first hinge shaft and a second hinge shaft, wherein the door body is provided with a door front wall and a door side wall; the end of the door body close to the hinge is provided with a first track groove and a second track groove which are both linear; the first hinge shaft is matched with the first track groove, and the second hinge shaft is matched with the second track groove; the central track line of the first track groove is recorded as a first track line S, and the central track line of the second track groove is recorded as a second track line K; the door body is opened from a closed state to a maximum angle A max In the process that the door body is opened to an angle greater than or equal to 90°, the central shaft of the first hinge shaft moves from one end to the other end along the first track line S in one direction, and then moves from the other end to the one end; the central shaft of the second hinge shaft moves from one end to the other end along the second track line K in one direction, so that the door body can rotate and move inward at the same time; the refrigerator can prevent the door body from exceeding or excessively exceeding the side of the cabinet when the door body is opened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a refrigerator. BACKGROUND

[0002] In the related art, the hinge structure of the refrigerator door body is mostly single-axis type, and the door body is rotated around the hinge shaft by cooperation of the hinge shaft and the shaft sleeve of the door body. In this case, the corner of the door body will exceed the side of the cabinet during opening of the door.

[0003] For the built-in refrigerator, the refrigerator is generally placed in the cabinet, and it is required that the corner of the door body does not excessively exceed the size of the cabinet during opening of the door to 90°, so that the use of the refrigerator is limited. SUMMARY

[0004] The present application at least partly solves one of the problems in the related art.

[0005] Therefore, the present application aims to provide a refrigerator, and the hinge structure of the refrigerator makes the door body not exceed or excessively exceed the side of the cabinet when the door is opened.

[0006] The refrigerator according to the present application comprises:

[0007] a cabinet defining a heat-insulated storage space; the cabinet comprises a first body side wall and a second body side wall arranged oppositely;

[0008] a hinge arranged on the cabinet and close to the first body side wall; the hinge has a first hinge shaft and a second hinge shaft located on the side of the first hinge shaft away from the first body side wall;

[0009] a door body having a door front wall away from the cabinet when the door body is closed, and a door side wall close to the hinge and connected with the door front wall;

[0010] a first track groove and a second track groove, both of which are linear and arranged at the end of the door body close to the hinge; the first hinge shaft cooperates with the first track groove, and the second hinge shaft cooperates with the second track groove;

[0011] the center track line of the first track groove is denoted as a first track line S, and the center track line of the second track groove is denoted as a second track line K; the first track line S comprises a first positioning end point P0, a second positioning end point P1 located on the side of the first positioning end point P0 close to the door front wall and the door side wall, e and the second track line K comprises a first guide end point Q0 and a second guide end point Q1 located on the side of the first guide end point Q0 away from the door front wall and close to the door side wall. e

[0012] ​The door body is opened from the closed state to the maximum angle A max During the process of opening the door body from the closed state to the maximum angle A, the center axis of the first hinge shaft is moved unidirectionally along the first trajectory line S from the first positioning endpoint P0 to the second positioning endpoint P e , and then moved unidirectionally from the second positioning endpoint P e to the first positioning endpoint P0; the center axis of the second hinge shaft is moved unidirectionally along the second trajectory line K from the first guiding endpoint Q0 to the second guiding endpoint Q e , so that the door body can be moved a distance in the direction of approaching the second body side wall while rotating.

[0013] As an embodiment of the present application, when the door body is rotated and opened to A1, the center axis of the first hinge shaft is located at the first positioning endpoint P e 1 of the first trajectory line S, and the center axis of the second hinge shaft is located at the second guiding endpoint Q2 of the second trajectory line K.

[0014] During the process of rotating and opening the door body from A1 to A2, the center axis of the first hinge shaft is moved from the first positioning endpoint P1 to the second positioning endpoint Pe along the first trajectory line S in the direction of moving away from the door side wall; the center axis of the second hinge shaft is moved from the second guiding endpoint Q2 to the first guiding endpoint Q1 along the second trajectory line K in the direction of approaching the door side wall; the door body is rotated and opened to A2, and the center axes of the first hinge shaft and the second hinge shaft are located on the straight line where the first trajectory line S is located.

[0015] Wherein, 0°

[0016] As an embodiment of the present application, the straight line where the first trajectory line S is located intersects with the second trajectory line K at the first guiding endpoint Q1, and the angle Q0Q1P0 is an acute angle.

[0017] As an embodiment of the present application, when the door body is rotated and opened to A1, the center axis of the first hinge shaft is located at the first positioning endpoint P 1 of the first trajectory line S, and the center axis of the second hinge shaft is located at the first guiding endpoint Q1 of the second trajectory line K; at this time, the center axes of the first hinge shaft and the second hinge shaft are located on the straight line where the first trajectory line S is located.

[0018] During the process of rotating and opening the door body from A1 to A2, the center axis of the first hinge shaft is moved from the first positioning endpoint P1 to the second positioning endpoint Pe along the first trajectory line S in the direction of approaching the door side wall; the center axis of the second hinge shaft is moved from the first guiding endpoint Q1 to the second guiding endpoint Q2 along the second trajectory line K in the direction of approaching the door side wall.

[0019]

[0019] Wherein, 0°

[0019]

[0020] As an embodiment of the present application, the straight line where the first trajectory S is located intersects the second trajectory K at a first guide point Q1, and ∠Q0Q1P0 is an obtuse angle.

[0021] As an embodiment of the present application, when the door body is rotated to open to A1, the central axis of the first hinge shaft is located at the second positioning endpoint P e of the first trajectory S, the central axis of the second hinge shaft is located at the second guide point Q2 of the second trajectory K, and the central axis of the first hinge shaft and the central axis of the second hinge shaft are both on the straight line where the first trajectory S is located.

[0022] Wherein, 0°<A1<90°.

[0023] As an embodiment of the present application, the straight line where the first trajectory S is located intersects the second trajectory K at a first guide point Q1, and ∠Q0Q1P0 is a right angle.

[0024] As an embodiment of the present application, when the door body is opened to A max >90°, the central axis of the first hinge shaft moves to the third positioning point P3 of the first trajectory S, and the central axis of the second hinge shaft moves to the second guide endpoint Q e .

[0025] As an embodiment of the present application, when the door body is in a closed state, the central axis of the first hinge shaft is located at the first positioning endpoint P0 of the first trajectory S, and the central axis of the second hinge shaft is located at the first guide endpoint Q0 of the second trajectory K.

[0026] As an embodiment of the present application, the distance between the first positioning endpoint P0 and the door front wall is recorded as D1, the distance between the second positioning endpoint P e and the door front wall is recorded as D2, the distance between the first guide endpoint Q0 and the door front wall is recorded as Z1, and the distance between the second guide endpoint Q e and the door front wall is recorded as Z2, wherein D2<Z1<D1<Z2.

[0027] Compared with the prior art, the present application has the advantages and positive effects that:

[0028] The application provides a refrigerator, which comprises a cabinet, a door body, a hinge with a first hinge shaft and a second hinge shaft; the door body is provided with a door front wall and a door side wall; the door body is provided with a first track groove and a second track groove which are both linear at an end close to the hinge; the first hinge shaft is matched with the first track groove, and the second hinge shaft is matched with the second track groove; a central track line of the first track groove is recorded as a first track line S, and a central track line of the second track groove is recorded as a second track line K; the first track line S comprises a first positioning end point P0, a second positioning end point P1 located on a side of the first positioning end point P0 close to the door front wall and the door side wall e ; the second track line K comprises a first guide end point Q0, a second guide end point Q1 located on a side of the first guide end point Q0 away from the door front wall and close to the door side wall e ; in the process that the door body is opened from a closed state to a maximum angle A max ≥90°, a central shaft of the first hinge shaft moves unidirectionally along the first track line S from the first positioning end point P0 to the second positioning end point P e , and then moves from the second positioning end point P e to the first positioning end point P0; a central shaft of the second hinge shaft moves unidirectionally along the second track line K from the first guide end point Q0 to the second guide end point Q e , so that the door body can move inward while rotating; the refrigerator can prevent the door body from exceeding or excessively exceeding the side of the cabinet when the door body is opened. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0030] Figure 1 is a perspective view of the refrigerator of the present application;

[0031] Figure 2 is a top view of the refrigerator of the present application;

[0032] Figure 3 is a partial structure schematic view of Figure 2 ; is an exploded structure schematic view of the hinge at the upper right corner of the refrigerator of the present application;

[0033] Figure 4 is a relative position view of the first track groove and the second track groove of the refrigerator of the present application;

[0034] Figure 5 is a relative position view of the first track groove and the second track groove of the refrigerator of the present application;

[0035] Figure 6is the movement condition schematic view of the first hinge shaft and the second hinge shaft of the refrigerator of the embodiment one of the present application;

[0036] Figure 7 is the view at the hinge when the door body is in the closed state in the embodiment one of the present application;

[0037] Figure 8 is the view at the hinge when the door body is opened to A1 in the embodiment one of the present application;

[0038] Figure 9 is the view at the hinge when the door body is opened to A2 in the embodiment one of the present application;

[0039] Figure 10 is the view at the hinge when the door body is opened to 90° in the embodiment one of the present application;

[0040] Figure 11 is the view at the hinge when the door body is opened to A max >90° in the embodiment one of the present application;

[0041] Figure 12 is the movement condition schematic view of the first hinge shaft and the second hinge shaft when the third positioning point P3 is coincided with the first positioning endpoint P0 in the embodiment one of the present application;

[0042] Figure 13 is the movement condition schematic view of the first hinge shaft and the second hinge shaft of the refrigerator of the embodiment two of the present application;

[0043] Figure 14 is the view at the hinge when the door body is in the closed state in the embodiment two of the present application;

[0044] Figure 15 is the view at the hinge when the door body is opened to A1 in the embodiment two of the present application;

[0045] Figure 16 is the view at the hinge when the door body is opened to A2 in the embodiment two of the present application;

[0046] Figure 17 is the view at the hinge when the door body is opened to 90° in the embodiment two of the present application;

[0047] Figure 18 is the view at the hinge when the door body is opened to A max >90° in the embodiment two of the present application;

[0048] Figure 19 is the movement condition schematic view of the first hinge shaft and the second hinge shaft when the third positioning point P3 is coincided with the first positioning endpoint P0 in the embodiment two of the present application;

[0049] Figure 20 This is a schematic diagram showing the movement of the first hinge shaft and the second hinge shaft in Embodiment 3 of the refrigerator of the present invention;

[0050] Figure 21 This is a view of the hinge when the door is in the closed state in Embodiment 3 of the refrigerator of the present invention;

[0051] Figure 22 This is a view of the hinge when the door of the refrigerator of the present invention is opened to A1 in Embodiment 3;

[0052] Figure 23 This is a view of the hinge when the door of the refrigerator of the present invention is opened to 90° in Embodiment 3;

[0053] Figure 24 In Embodiment 3 of the refrigerator of the present invention, the door is opened to A. max View at the hinge when >90°;

[0054] Figure 25 This is a schematic diagram of the movement of the first hinge axis and the second hinge axis when the third positioning point P3 coincides with the first positioning endpoint P0 in Embodiment 3 of the refrigerator of the present invention.

[0055] Figure 26 This is a view showing the parameters at the hinge when the door of the refrigerator of the present invention is in the closed state in Embodiment 4;

[0056] Figure 27 This is a view showing the parameters at the hinge when the door opening angle m∈(0, γ+n] is four times that of the refrigerator of the present invention.

[0057] Figure 28 This is a view showing the parameters at the hinge when the opening angle m=γ+n is the fourth embodiment of the refrigerator of the present invention;

[0058] Figure 29 This is a view showing the parameters at the hinge when the door opening angle m∈(γ+n,2(γ+n)】 is the fourth door of the refrigerator embodiment of the present invention;

[0059] Figure 30 This is a view showing the parameters at the hinge when m=2(γ+n) in Embodiment 4 of the refrigerator of the present invention.

[0060] In the above figures: Box body 10; Storage room 20; Cabinet 100; Door 30; Front wall of door 31; Side wall of door 32; Side edge 33; Hinge plate 40; Connecting part 401; Extension part 402; First hinge axis 41; Second hinge axis 42; Positioning center axis P; Guide center axis Q; First track groove 50; First track line S; First positioning endpoint P0; Second positioning endpoint P e; second positioning point P2; third positioning point P3; second track groove 60; second track line K; first guide end point Q0; first guide point Q1; second guide point Q2; third guide point Q3; second guide end point Q e . DETAILED DESCRIPTION

[0061] Hereinafter, the present application will be described in detail through exemplary embodiments. It should be understood, however, that the elements, structures and features of one embodiment can be beneficially incorporated into other embodiments without further recitation.

[0062] In the description of the present application, 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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely used for convenience of describing the present application and simplifying the description, and thus cannot be construed as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the present application.

[0063] The terms "first", "second", "third", "fourth", "fifth" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second", "third", "fourth", "fifth" can explicitly or implicitly include one or more of the features.

[0064] Hereinafter, the embodiments of the present application will be described in detail with reference to the accompanying drawings. In the drawings, the side of the refrigerator facing the user when in use is defined as the front side, and the side opposite thereto is defined as the rear side.

[0065] Example 1

[0066] Referring to Figure 1 The refrigerator includes a cabinet 10 having a storage compartment 20, a door body 30 connected to the cabinet 10 to open and close the storage compartment 20, and a refrigerating device to supply cold air to the storage compartment 20.

[0067] Specifically, the refrigerating device can include an evaporator, a compressor, a condenser, and an expansion device, and can generate cold air by using latent heat of evaporation of a refrigerant. The cabinet 10 includes an inner container defining the storage compartment 20, an outer shell connected to the outer side of the inner container to form the appearance of the refrigerator, and a thermal insulation layer provided between the inner container and the outer shell to insulate the storage compartment 20.

[0068] The cabinet 10 defines a plurality of storage compartments 20. In the present embodiment, the plurality of storage compartments 20 includes a refrigerating compartment and a freezing compartment located below the refrigerating compartment; as one of the settable modes, the refrigerating compartment is used to store food in a refrigerating mode by keeping air at a temperature of about 0 to 5°C; the freezing compartment is used to store food in a freezing mode by keeping air at a temperature of 0 to -30°C. It should be noted that the set of the plurality of storage compartments 20 of the refrigerator is not limited to the above example.

[0069] The front end of the storage compartment 20 is formed with a taking and placing opening for placing food into the storage compartment 20 or taking food out of the storage compartment 20; the cabinet 10 is provided with a rotatable door body 30 for opening or closing the taking and placing opening of the storage compartment 20. Specifically, the door body 30 is rotatably connected to the cabinet 10 by a hinge located at the upper part and a hinge located at the lower part.

[0070] The cabinet 10 includes oppositely arranged first and second body side walls (i.e. left and right side walls of the cabinet 10); the hinge is arranged on the cabinet 10 and close to the first body side wall; the door body 30 has a door front wall 31 away from the cabinet 10 when the door body 30 is closed, a door side wall 32 close to the hinge and connected with the door front wall 31; for example, when the hinge is located on the right side of the cabinet 10, the right side of the door body 30 is the door side wall 32; when the hinge is located on the left side of the cabinet 10, the left side of the door body 30 is the door side wall 32. The door front wall 31 and the door side wall 32 of the door body 30 intersect to form a side edge 33.

[0071] Referring to Figures 2 to 5 , the hinge has a first hinge shaft 41 and a second hinge shaft 42 located on the side away from the first body side wall of the first hinge shaft 41; the end of the door body 30 close to the hinge is provided with a first track groove 50 and a second track groove 60; the first hinge shaft 41 is adapted to the first track groove 50, and the second hinge shaft 42 is adapted to the second track groove 60; during the rotation of the door body 30 to open or close, the first hinge shaft 41 moves relative to the first track groove 50, and the second hinge shaft 42 moves relative to the second track groove 60.

[0072] Here, it should be noted that the present embodiment only takes the above-mentioned arrangement of the first hinge shaft 41 and the second hinge shaft 42 on the hinge and the first track groove 50 and the second track groove 60 on the door body 30 as an example; however, the arrangement of the first hinge shaft 41, the second hinge shaft 42, the first track groove 50 and the second track groove 60 is not limited to the above-mentioned arrangement on the door body 30 or the matching arrangement on the door body 30. One of the first hinge shaft 41 and the first track groove 50 is arranged on the door body 30, and the other is arranged on the hinge; the second hinge shaft 42 and the second track groove 60 are arranged in the same way. The principles are the same, only the position settings are different, which are conventional settings and will not be described in detail.

[0073] The hinge includes a hinge plate 40 fixedly connected to the cabinet 10, the hinge plate 40 including a connecting portion 401 connected to the cabinet 10, and an extension portion 402 extending forward from the connecting portion 401 and having a horizontal plate shape. The connecting portion 401 can be fastened to the top wall of the cabinet 10 by fastening members such as screws, pins, and bolts.

[0074] Specifically, for the hinge at the upper end of the door body 30, the hinge plate 40 is connected to the upper end of the cabinet 10, and the first hinge shaft 41 and the second hinge shaft 42 are connected to the hinge plate 40 to form the rotation shaft. The hinge plate 40, the first hinge shaft 41, and the second hinge shaft 42 can be integrally formed, but are different from this, the hinge plate 40, the first hinge shaft 41, and the second hinge shaft 42 can be separately provided and assembled with each other. Among them, the first hinge shaft 41 and the second hinge shaft 42 are formed on the extension portion 402 and extend vertically downward.

[0075] For the hinge at the lower end of the door body 30, the connecting portion 401 is connected to the front end face of the cabinet 10. The first hinge shaft 41 and the second hinge shaft 42 extend upward on the hinge plate 40.

[0076] Corresponding to the position of the hinge plate 40, the upper and lower ends of the door body 30 are each provided with a first track groove 50 and a second track groove 60. And the positions of the two first track grooves 50 at the upper and lower ends of the door body 30 correspond in the vertical direction, and the positions of the two second track grooves 60 at the upper and lower ends of the door body 30 correspond in the vertical direction. That is, in the projection in the plane of the top wall of the cabinet 10, the center lines of the two first track grooves 50 at the upper and lower ends of the door body 30 are completely coincident in projection, and the center lines of the two second track grooves 60 at the upper and lower ends of the door body 30 are completely coincident in projection.

[0077] In this embodiment, continuing to refer to Figure 2 The plane on which the side face of the cabinet 10 near the hinge plate 40 is defined as the reference plane M, and the refrigerator is stored in the cabinet 100, the side of the reference plane M near the cabinet 100 is the outer side, and the side near the storage compartment 20 opposite to it is the inner side. When the refrigerator is placed in the cabinet 100 for use, in order to prevent the user's ground from being uneven and the cabinet 100 from being deformed and other factors, when the cabinet 100 is dimensioned, the distance α between the cabinet 100 and the side face of the refrigerator (i.e. the first body side wall is the reference plane M) is 5mm. In order to ensure that the door body 30 of the refrigerator is normally opened, the side edge 33 of the door body 30 cannot protrude too much from the side face of the cabinet 10 (the reference plane M) during rotation, so as to avoid the side edge 33 colliding with the cabinet 100 and causing the door body 30 to be unable to be normally opened.

[0078] To meet the above requirements, the door body 30 needs to be able to move inward during rotation, so that the side edges 33 do not protrude too much from the side of the cabinet 10 (reference plane M). For example, when the hinge plate 40 is arranged on the right side of the door body 30 (in this case, the left side wall of the cabinet 10 is the first body side wall), the inward side is the left side, i.e., the door body 30 needs to be able to move to the left; for example, when the hinge plate 40 is arranged on the door body 30, the inward side is the right side, i.e., the door body 30 needs to be able to move to the right.

[0079] In this embodiment, the first track groove 50 and the second track groove 60 are each linear; that is, the first track groove 50 and the second track groove 60 each consist of only a linear groove. The first hinge shaft 41 cooperates with the first track groove 50, and the second hinge shaft 42 cooperates with the second track groove 60. The central track line of the first track groove 50 is denoted as a first track line S, and the central track line of the second track groove 60 is denoted as a second track line K. Due to the shape of the first track groove 50 and the second track groove 60, which consist of a linear groove, the first track line S is a straight line, and the second track line K is also a straight line. The first track line S extends along a straight line from a side away from the door front wall 31 and the door side wall 32 to a side close to the door front wall 31 and the door side wall 32; the second track line K extends along a straight line from a side close to the door front wall 31 and away from the door side wall 32 to a side away from the door front wall 31 and close to the door side wall 32, and the first track line S is located on the side of the second track line K close to the door front wall 31 and the door side wall 32, so that the door body 30 can move a distance inward (close to the second body side wall) while rotating, thereby avoiding interference between the door body 30 and the cabinet 100 when the door body 30 is opened. The above arrangement of the first track groove 50 and the second track groove 60 makes full use of the thickness of the door body 30, and avoids increasing the thickness of the door body 30 due to the need for the door body 30 to move inward when it is opened.

[0080] Since the first track groove 50 and the first hinge shaft 41 are in a relative motion relationship, and the second track groove 60 and the second hinge shaft 42 are in a relative motion relationship, if the door body 30 is taken as a stationary reference during opening, it is equivalent to the first hinge shaft 41 moving in the first track groove 50 and the second hinge shaft 42 moving in the second track groove 60. For the sake of convenience in description, the first track groove 50 and the second track groove 60 are taken as the reference, and the first hinge shaft 41 and the second hinge shaft 42 move relative to the reference.

[0081] In addition, in this embodiment, the central axis of the first hinge shaft 41 is denoted as a positioning central axis P, and the central axis of the second hinge shaft 42 is denoted as a guide central axis Q. As shown in FIG. 2, the positioning central axis P is parallel to the guide central axis Q. Figures 6-12As shown, the movement of the first hinge shaft 41 along the first track groove 50 is equivalent to the movement of the positioning center shaft P along the first track line S, and the movement of the second hinge shaft 42 along the second track groove 60 is equivalent to the movement of the guide center shaft Q along the second track line K, so that the door body 30 can move a certain distance inward (closer to the side wall of the second body) while rotating, thereby avoiding interference between the door body 30 and the cabinet 100 when it is opened.

[0082] like Figures 6-12 As shown, the first trajectory line S includes a first positioning endpoint P0 away from the door sidewall 32 and a second positioning endpoint P1 near the door sidewall 32. e Second positioning endpoint P e Located on the side of the first positioning endpoint P0 near the front wall 31 and the side wall 32 of the door, the first trajectory line S extends in a straight line from the first positioning endpoint P0 towards the side near the front wall 31 and the side wall 32 of the door to the second positioning endpoint P. e .

[0083] The second trajectory line K includes a first guide endpoint Q0 away from the door sidewall 32 and a second guide endpoint Q close to the door sidewall 32. e Second guide endpoint Q e Located on the side of the first guide endpoint Q0 that is away from the front wall 31 and close to the side wall 32, the second trajectory line K extends in a straight line from the first guide endpoint Q0 to the second guide endpoint Q0 on the side away from the front wall 31 and the side wall 32. e Wherein, the distance between the first guide endpoint Q0 and the front wall 31 is denoted as Z1, and the distance between the second guide endpoint Q... e The distance between the first positioning endpoint P0 and the front wall 31 is denoted as Z2. Additionally, the distance between the first positioning endpoint P0 and the front wall 31 is denoted as D1, and the distance between the second positioning endpoint P... e The distance between the point P and the front wall 31 is denoted as D2. As a possible configuration, D2 < Z1 < D1 < Z2. That is, the second positioning endpoint P... e Located on the side of the first positioning endpoint P0 near the door sidewall 32 and the front wall 31. The first track groove 50 extends from its end away from the door sidewall 32 towards the other end near the door sidewall 32 and the front wall 31. The second track groove 60 extends from its end near the front wall 31 and away from the door sidewall 32 towards the other end. This arrangement allows the second track groove 60 to effectively limit the movement of the second hinge axis 42, so that the second hinge axis 42 cooperates with the first hinge axis 41 to move within the first track groove 50, thereby causing the door 30 to move inward a certain distance during the opening process of the door body 30 and ensuring the stability of the door body 30 when it rotates open.

[0084] like Figure 7As shown, in some embodiments of the application, when the door 30 is in the closed state, the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning endpoint P0 of the first trajectory line S, and the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide endpoint Q0 of the second trajectory line K.

[0085] Combination Figure 5 At this point, the vertical distance between the first hinge axis 41 and the second hinge axis 42 in the direction perpendicular to the front wall 31 of the door is denoted as L1 = D1 - Z1, where 2.5mm ≤ L1 ≤ 10mm. The horizontal distance L2 between the first hinge axis 41 and the second hinge axis 42 in the direction perpendicular to the side wall 32 of the door satisfies 7.5mm ≤ L2 ≤ 30mm. In the current example, L1 = 5mm, L2 = 15mm, and the thickness of the door body 30 is between 44mm and 53mm, so that the corner of the door body 30 always extends a small distance beyond the side of the box body 10 during the opening process, specifically less than 3mm.

[0086] In some embodiments, when the door 30 is in the closed state, there is a certain gap δ > 0 between the second hinge shaft 42 and the end wall of the second track groove 60 (not shown in the figure), so that when the door 30 is forcefully thrown against the box 10, the second hinge shaft 42 is prevented from contacting the first starting end of the second track groove 60 and the door 30 is bounced open.

[0087] See Figures 6-11 The straight line containing the first trajectory line S intersects the second trajectory line K at the first guide point Q1. The angle between the second trajectory line K and the front wall 31 is denoted as φ (not shown in the figure), where φ < 90°, i.e., φ is an acute angle; since the first trajectory line S extends in a straight line from the first positioning endpoint P0 towards the side closer to the front wall 31 and the side wall 32 of the door to the second positioning endpoint P... e Then ∠Q0Q1P0∈(90°-φ, 180°-φ). Since φ<90°, ∠Q0Q1P0 can be set as an acute angle, a right angle, or an obtuse angle.

[0088] In this embodiment, ∠Q0Q1P0 is set as an acute angle, and the maximum opening angle A of the refrigerator is defined as... max Taking >90° as an example, when the door 30 is rotated open to a specific angle, the relative positions of the first hinge axis 41 with respect to the first track groove 50 and the relative positions of the second hinge axis 42 with respect to the second track groove 60 are as follows:

[0089] like Figure 7 As shown, when the door 30 is in the closed state (open 0°), the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning endpoint P0 away from the door side wall 32 on the first trajectory line S, and the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide endpoint Q0 away from the door side wall 32 on the second trajectory line K.

[0090] As shown in Figure 8 , when the door body is rotated to open to A1, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning endpoint P2 of the first trajectory line S close to the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 is located at the second guiding point Q2 of the second trajectory line K. e

[0091] As shown in Figure 9 , when the door body 30 is rotated to open to A2, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the first positioning point P1 of the first trajectory line S; the center axis (guiding center axis Q) of the second hinge shaft 42 is located at the first guiding point Q1 of the second trajectory line K; at this time, the center axis (positioning center axis P) of the first hinge shaft 41 and the center axis (guiding center axis Q) of the second hinge shaft 42 are both on the straight line where the first trajectory line S is located.

[0092] As shown in Figure 10 , when the door body 30 is opened to 90°, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning point P2 of the first trajectory line S; the center axis (guiding center axis Q) of the second hinge shaft 42 is located at the third guiding point Q3 of the second trajectory line K.

[0093] As shown in Figure 11 , when the door body 30 is opened to A max >90°, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the third positioning point P3 of the first trajectory line S; the center axis (guiding center axis Q) of the second hinge shaft 42 is located at the second guiding endpoint Q e .

[0094] Wherein, 0° max ; the first positioning endpoint P0, the third positioning point P3, the second positioning point P2, the first positioning point P1, and the second positioning endpoint P e are sequentially distributed along the first trajectory line S; the first guiding endpoint Q0, the second guiding point Q2, the first guiding point Q1, the third guiding point Q3, and the second guiding endpoint Q e are sequentially distributed along the second trajectory line K. In this embodiment, it is assumed that ∠Q0Q1P0=76°, and the following will specifically describe the process of rotating the door body 30 to open:

[0095] Specifically, as shown in Figure 8 ​As shown, during the process of the door 30 rotating from the closed state to A1, the central axis (positioning center axis P) of the first hinge axis 41 moves from the first positioning endpoint P0 along the first trajectory line S towards the door side wall 32 to the second positioning endpoint Pe; the central axis (guide center axis Q) of the second hinge axis 42 moves from the first guide endpoint Q0 along the second trajectory line K towards the door side wall 32 to the second guide point Q2. At this time, the door rotates open to A1, and the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint Pe near the door side wall 32 along the first trajectory line S; that is, when the door rotates open to A1, the central axis (positioning center axis P) of the first hinge axis 41 is located at the end of the first trajectory groove 50 near the door side wall 32, and the first hinge axis 41 moves to its limit position along the first trajectory groove 50 towards the door side wall 32. During the process of the door rotating open from the closed state to A1, both the first hinge axis 41 and the second hinge axis 42 move in a straight line, and the door 30 always moves inward.

[0096] like Figure 9 As shown, during the process of the door 30 rotating open from A1 to A2, the central axis (positioning center axis P) of the first hinge axis 41 is retracted from the second positioning endpoint Pe and moves along the first trajectory line S in a direction away from the door side wall 32 to the first positioning point P1; the central axis (guide center axis Q) of the second hinge axis 42 moves from the second guide point Q2 along the second trajectory line K in a direction closer to the door side wall 32 to the first guide point Q1. At this time, the door rotates open to A2, and the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 are both on the straight line where the first trajectory line S is located.

[0097] like Figure 10 As shown, during the process of the door 30 rotating open from A2 to 90°, the central axis (positioning center axis P) of the first hinge axis 41 continues to move from the first positioning point P1 along the first trajectory line S away from the door side wall 32 to the second positioning point P2; the central axis (guide center axis Q) of the second hinge axis 42 continues to move from the first guide point Q1 along the second trajectory line K towards the door side wall 32 to the third guide point Q3. At this time, when the door 30 is opened to 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning point P2; the central axis (guide center axis Q) of the second hinge axis 42 is located at the third guide point Q3.

[0098] like Figure 11 As shown, door 30 is rotated 90° to open to A. maxDuring the process of >90°, the central axis (positioning center axis P) of the first hinge axis 41 moves from the second positioning point P2 along the first trajectory line S away from the door side wall 32 to the third positioning point P3; the central axis (guide center axis Q) of the second hinge axis 42 continues to move from the third guide point Q3 along the second trajectory line K towards the door side wall 32 to the second guide endpoint Q. e When the door is opened to A at 30. max When the angle is greater than 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the third positioning point P3; the central axis (guide center axis Q) of the second hinge axis 42 is located at the second guide endpoint Q of the second trajectory line K near the door sidewall 32. e That is, when the door is opened from 30 to A... max When the angle is greater than 90°, the central axis (positioning center axis P) of the second hinge axis 42 is located at the end of the second track groove 60 near the door side wall 32, and the second hinge axis 42 moves along the second track groove 60 towards the door side wall 32 to the limit position.

[0099] In this embodiment, as Figure 6 As shown, taking the first track groove 50 and the second track groove 60 as references, the line connecting the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 first rotates clockwise by A1 and moves outward by a first distance (from P0Q0→P). e Q2), then rotate clockwise from A1 to A. max >90° and move inward a second distance (by P) e Q2→P1Q1→P2Q3→P3Q e In this embodiment, the third positioning point P3 does not coincide with the first positioning endpoint P0, so the first distance is greater than the second distance, causing the door 30 to open to A relative to the initial state (P0Q0). max When the angle is greater than 90°, the line connecting the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 rotates and moves outward by a certain distance (the difference between the first distance and the second distance).

[0100] That is, if we take the first hinge axis 41 and the second hinge axis 42 as references, the first track groove 50 and the second track groove 60 as a whole first rotate counterclockwise by A1 and move inward by a first distance, and then rotate counterclockwise from A1 to A2. max >90° and move outward a second distance; since the third positioning point P3 does not coincide with the first positioning endpoint P0, the first distance > the second distance; relative to the initial state (door closed state), door 30 opens to A. maxWhen the door body 30 is opened to an angle greater than 90°, the first track groove 50 and the second track groove 60 are finally moved inward by a certain distance. In the present embodiment, the first track groove 50 and the second track groove 60 are arranged on the door body 30, i.e., the door body 30 is opened A max During the process of being opened to an angle greater than 90°, the door body 30 is moved inward by a certain distance relative to the initial state (closed state) to avoid the door body 30 from touching the cabinet 100 during the opening process.

[0101] In the present embodiment, the second positioning end point P e is closer to the door side wall 32 than the first positioning end point P0, and the first track line S extends along a straight line in the direction close to the door side wall 32; in this way, when the first hinge shaft 41 is moved in the direction close to the door side wall 32 (during the process of opening the door body 30 from the closed state to A1), it is equivalent to that the door body 30 with the first track groove 50 is moved by a first distance in the direction away from the door side wall 32 (the inner side), and the movement of the door body 30 to the inner side can avoid the side edge 33 from exceeding the side of the cabinet 10 too much and touching the cabinet 100.

[0102] In the above embodiment, the third positioning point P3 does not coincide with the first positioning end point P0; as Figure 12 shown, the length of the second track groove 60 (the length of the second track groove 60 with the third positioning point P3 not coinciding with the first positioning end point P0 is extended) can be set according to actual product requirements to make the third positioning point P3 coincide with the first positioning end point P0. Under the premise that the positions of the first track groove 50 and the second track groove 60 are determined and the length of the first track groove 50 is determined, compared with the setting that the third positioning point P3 does not coincide with the first positioning end point P0, the length of the second track groove 60 satisfying the setting that the third positioning point P3 coincides with the first positioning end point P0 makes the maximum opening angle A max of the door body 30 greater.

[0103] In the present example, when the refrigerator is arranged in the cabinet 100, the door body 30 can be opened to an angle A max greater than 90°, which is between about 105° and 110°.

[0104] Embodiment Two

[0105] As Figures 13-19 shown, the present embodiment two has the same setting principle as the embodiment one, and the difference lies in that in the present embodiment, ∠Q0Q1P0 is an obtuse angle; the following will be described by taking the maximum opening angle A max of the refrigerator greater than 90° as an example. When the door body 30 is rotated and opened to a certain angle, the relative positions of the first hinge shaft 41 relative to the first track groove 50 and the relative positions of the second hinge shaft 42 relative to the second track groove 60 are as follows:

[0106] like Figure 14 As shown, when the door 30 is in the closed state (open 0°), the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning endpoint P0 away from the door side wall 32 on the first trajectory line S, and the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide endpoint Q0 away from the door side wall 32 on the second trajectory line K.

[0107] like Figure 15 As shown, when the door 30 is rotated open to A1, the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning point P1 of the first trajectory line S; the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide point Q1 of the second trajectory line K; at this time, the central axis (positioning central axis P) of the first hinge axis 41 and the central axis (guide central axis Q) of the second hinge axis 42 are both on the straight line where the first trajectory line S is located.

[0108] like Figure 15 As shown, when the door rotates open to A2, the central axis (positioning center axis P) of the first hinge axis 41 is located on the first trajectory line S near the second positioning endpoint P of the door side wall 32. e The central axis (guide central axis Q) of the second hinge axis 42 is located at the second guide point Q2 of the second trajectory line K;

[0109] like Figure 17 As shown, when the door 30 is opened to 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning point P2 of the first trajectory line S; the central axis (guide center axis Q) of the second hinge axis 42 is located at the third guide point Q3 of the second trajectory line K.

[0110] like Figure 18 As shown, door 30 opens to A. max When the angle is greater than 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the third positioning point P3 of the first trajectory line S; the central axis (guide center axis Q) of the second hinge axis 42 is located at the second guide endpoint Q of the second trajectory line K. e .

[0111] Where 0° < A1 < A2 < 90° < A max First positioning endpoint P0, third positioning point P3, second positioning point P2, first positioning point P1, second positioning endpoint P e Distributed sequentially along the first trajectory line S; first guide endpoint Q0, first guide point Q1, second guide point Q2, third guide point Q3, second guide endpoint Q e They are distributed sequentially along the second trajectory line K. In this embodiment, taking ∠Q0Q1P0=99° as an example, the following is a detailed explanation of the door 30's rotational opening process:

[0112] Specifically, as shown in Figure 15 the process of rotating from the closed state to Al, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the first positioning endpoint P0 to the first positioning point PI along the first trajectory line S in the direction of approaching the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 moves from the first guiding endpoint Q0 to the first guiding point Ql along the second trajectory line K in the direction of approaching the door side wall 32. At this time, the door body is rotated to Al, and the center axis (positioning center axis P) of the first hinge shaft 41 and the center axis (guiding center axis Q) of the second hinge shaft 42 are both on the straight line where the first trajectory line S is located.

[0113] As shown in Figure 16 the process of rotating from Al to A2, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the first positioning point PI to the second positioning endpoint Pe along the first trajectory line S in the direction of approaching the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 moves from the first guiding point Ql to the second guiding point Q2 along the second trajectory line K in the direction of approaching the door side wall 32. At this time, the door body is rotated to A2, and the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning endpoint Pe of the first trajectory line S close to the door side wall 32; that is, when the door body is rotated to A2, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the end of the first trajectory groove 50 close to the door side wall 32, and the first hinge shaft 41 moves to the limit position along the first trajectory groove 50 in the direction of approaching the door side wall 32. Above, in the process of rotating from the closed state to A2, the first hinge shaft 41 and the second hinge shaft 42 are both unidirectionally moved along the straight line, and the door body 30 is always moved inward.

[0114] As shown in Figure 17 the process of rotating from A2 to 90°, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the second positioning endpoint Pe to the second positioning point P2 along the first trajectory line S in the direction of moving away from the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 moves from the second guiding point Q2 to the third guiding point Q3 along the second trajectory line K in the direction of approaching the door side wall 32. At this time, when the door body 30 is opened to 90°, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning point P2; and the center axis (guiding center axis Q) of the second hinge shaft 42 is located at the third guiding point Q3.

[0115] As shown in Figure 18 the process of rotating from 90° to A maxDuring the process of >90°, the central axis (positioning center axis P) of the first hinge axis 41 moves from the second positioning point P2 along the first trajectory line S away from the door side wall 32 to the third positioning point P3; the central axis (guide center axis Q) of the second hinge axis 42 continues to move from the third guide point Q3 along the second trajectory line K towards the door side wall 32 to the second guide endpoint Q. e When the door is opened to A at 30. max When the angle is greater than 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the third positioning point P3; the central axis (guide center axis Q) of the second hinge axis 42 is located at the second guide endpoint Q of the second trajectory line K near the door sidewall 32. e That is, when the door is opened from 30 to A... max When the angle is greater than 90°, the central axis (positioning center axis P) of the second hinge axis 42 is located at the end of the second track groove 60 near the door side wall 32, and the second hinge axis 42 moves along the second track groove 60 towards the door side wall 32 to the limit position.

[0116] In this embodiment, as Figure 13 As shown, taking the first track groove 50 and the second track groove 60 as references, the line connecting the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 first rotates clockwise by A2 and moves outward by a first distance (from P0Q0→P1Q1→P). e Q2), then rotate clockwise from A2 to A. max >90° and move inward a second distance (by P) e Q2→P2Q3→P3Q e In this embodiment, the third positioning point P3 does not coincide with the first positioning endpoint P0, so the first distance is greater than the second distance, causing the door 30 to open to A relative to the initial state (P0Q0). max When the angle is greater than 90°, the line connecting the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 rotates outward by a certain distance (the difference between the first distance and the second distance).

[0117] That is, if we take the first hinge axis 41 and the second hinge axis 42 as references, the first track groove 50 and the second track groove 60 as a whole first rotate A2 counterclockwise and move inward a first distance, and then rotate A2 counterclockwise from A2. max >90° and move outward a second distance; the third positioning point P3 does not coincide with the first positioning endpoint P0, so the first distance > the second distance. Relative to the initial state (door closed state), the door 30 opens to A. maxWhen the angle is greater than 90°, the first track groove 50 and the second track groove 60 eventually move inward a certain distance. In this embodiment, the first track groove 50 and the second track groove 60 are disposed on the door body 30, that is, the door body 30 opens relative to the hinge fixed on the box body. max During the process of opening the door to 90°, relative to the initial state (closed state), the door 30 moves inward a certain distance to avoid the door 30 touching the cabinet 100 during the opening process.

[0118] In this embodiment, the second positioning endpoint P e The first trajectory line S extends in a straight line towards the door sidewall 32, closer to the first positioning endpoint P0. Thus, when the first hinge axis 41 moves towards the door sidewall 32 (during the process of the door 30 opening from the closed state to A2), it is equivalent to the door 30 with the first trajectory groove 50 moving a certain distance away from the door sidewall 32 (inward). The inward movement of the door 30 can prevent the side edge 33 from extending too far beyond the side of the cabinet 10 and touching the cabinet 100.

[0119] In summary, during the obtuse-angle rotation opening process of ∠Q0Q1P0 in this embodiment, the rotation first occurs until the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 are both on the straight line of the first trajectory line S. Then, the rotation continues until the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint P near the door sidewall 32 on the first trajectory line S. e The order of the two states achieved during rotation opening is the reverse of that in Embodiment 1 when ∠Q0Q1P0 is set to an acute angle.

[0120] In this embodiment, the third positioning point P3 does not coincide with the first positioning endpoint P0; for example Figure 19 As shown, the length of the second track groove 60 can be set according to the actual needs of the product (extending its length relative to the length of the second track groove 60 where the third positioning point P3 does not coincide with the first positioning endpoint P0), so that the third positioning point P3 coincides with the first positioning endpoint P0. Given that the orientations of the first track groove 50 and the second track groove 60 are determined, and the length of the first track groove 50 is determined, compared to the setting where the third positioning point P3 does not coincide with the first positioning endpoint P0, the length of the second track groove 60 satisfies the setting where the third positioning point P3 coincides with the first positioning endpoint P0, allowing the door 30 to open to the maximum angle A. max Maximum. Additionally, when the third positioning point P3 coincides with the first positioning endpoint P0, then the first distance = the second distance.

[0121] In the current example, when the refrigerator is installed inside cabinet 100, door 30 can be opened to its maximum angle A. max >90°, approximately between 105° and 110°.

[0122] Example 3

[0123] like Figures 20-25 As shown, the setting principle of this embodiment three is the same as that of embodiments one and two, the difference being that in this embodiment, ∠Q0Q1P0 is set as a right angle; that is, in this embodiment, ∠Q0Q1P0 = 90°; the following uses the maximum opening angle A of the refrigerator as an example. max Taking >90° as an example, when the door 30 is rotated open to a specific angle, the relative positions of the first hinge axis 41 with respect to the first track groove 50 and the relative positions of the second hinge axis 42 with respect to the second track groove 60 are as follows:

[0124] like Figure 21 As shown, when the door 30 is in the closed state (open 0°), the central axis (positioning central axis P) of the first hinge axis 41 is located at the first positioning endpoint P0 away from the door side wall 32 on the first trajectory line S, and the central axis (guide central axis Q) of the second hinge axis 42 is located at the first guide endpoint Q0 away from the door side wall 32 on the second trajectory line K.

[0125] like Figure 22 As shown, when the door 30 rotates open to A1, the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint P of the first trajectory line S. e The central axis (guide center axis Q) of the second hinge axis 42 is located at the second guide point Q2 of the second trajectory line K. Simultaneously, the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 are both on the straight line containing the first trajectory line S. That is, the first guide point Q1 and the second guide point Q2, which are the intersection points of the straight line containing the first trajectory line S and the straight line containing the second trajectory line K, coincide. In this embodiment, when the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 are both on the straight line containing the first trajectory line S, the first positioning point P1 of the central axis (positioning center axis P) of the first hinge axis 41 and the second positioning endpoint P of the first trajectory line S... e When the first guide point Q1, where the central axis (guide center axis Q) of the second hinge axis 42 is located, moves to the second positioning endpoint P of the first trajectory line S along the central axis (positioning center axis P) of the first hinge axis 41. e The second guide point Q2, where the central axis (guide center axis Q) of the second hinge axis 42 is located, coincides with the second guide point Q2.

[0126] like Figure 23 As shown, when the door 30 is opened to 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning point P2 of the first trajectory line S; the central axis (guide center axis Q) of the second hinge axis 42 is located at the third guide point Q3 of the second trajectory line K.

[0127] like Figure 24 As shown, door 30 opens to A. max When the angle is greater than 90°, the central axis (positioning center axis P) of the first hinge axis 41 is located at the third positioning point P3 of the first trajectory line S; the central axis (guide center axis Q) of the second hinge axis 42 is located at the second guide endpoint Q of the second trajectory line K. e .

[0128] Where 0° < A1 < 90° < A max First positioning endpoint P0, third positioning point P3, second positioning point P2, second positioning endpoint P e (First positioning point P1) is distributed sequentially along the first trajectory line S; first guide endpoint Q0, second guide point Q2 (first guide point Q1), third guide point Q3, and second guide endpoint Q e They are distributed sequentially along the second trajectory line K. The following is a detailed explanation of the door body 30's rotational opening process:

[0129] Specifically, such as Figure 22 As shown, during the process of the door 30 rotating open from the closed state to A1, the central axis (positioning center axis P) of the first hinge axis 41 moves from the first positioning endpoint P0 along the first trajectory line S towards the door side wall 32 to the second positioning endpoint Pe; the central axis (guide center axis Q) of the second hinge axis 42 moves from the first guide endpoint Q0 along the second trajectory line K towards the door side wall 32 to the second guide point Q2. At this time, the door rotates open to A1, and the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint Pe near the door side wall 32 along the first trajectory line S; that is, when the door rotates open to A1, the central axis (positioning center axis P) of the first hinge axis 41 is located at the end of the first trajectory groove 50 near the door side wall 32, and the first hinge axis 41 moves to its limit position along the first trajectory groove 50 towards the door side wall 32. At the same time, the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 are both on the straight line of the first trajectory line S. During the process of opening the door 30 from the closed state to A1, both the first hinge axis 41 and the second hinge axis 42 move in a straight line in one direction, and the door 30 always moves inward.

[0130] like Figure 23As shown, during the process that the door body 30 is rotated to 90° from A1, the center axis (the positioning center axis P) of the first hinge shaft 41 is moved to the second positioning point P2 from the second positioning end point Pe along the first trajectory line S in the direction away from the door side wall 32; the center axis (the guiding center axis Q) of the second hinge shaft 42 is moved to the third guiding point Q3 from the second guiding point Q2 along the second trajectory line K in the direction close to the door side wall 32. At this time, when the door body 30 is opened to 90°, the center axis (the positioning center axis P) of the first hinge shaft 41 is located at the second positioning point P2; the center axis (the guiding center axis Q) of the second hinge shaft 42 is located at the third guiding point Q3.

[0131] As shown, Figure 24 during the process that the door body 30 is rotated to A max >90° from 90°, the center axis (the positioning center axis P) of the first hinge shaft 41 is moved to the third positioning point P3 from the second positioning point P2 along the first trajectory line S in the direction away from the door side wall 32; the center axis (the guiding center axis Q) of the second hinge shaft 42 is moved to the second guiding end point Qe from the third guiding point Q3 along the second trajectory line K in the direction close to the door side wall 32. e When the door body 30 is opened to A max >90°, the center axis (the positioning center axis P) of the first hinge shaft 41 is located at the third positioning point P3; the center axis (the guiding center axis Q) of the second hinge shaft 42 is located at the second guiding end point Qe of the second trajectory line K close to the door side wall 32. e That is, when the door body 30 is opened to A max >90°, the center axis (the positioning center axis P) of the second hinge shaft 42 is located at the end of the second trajectory groove 60 close to the door side wall 32, and the second hinge shaft 42 is moved to the limit position along the second trajectory groove 60 in the direction close to the door side wall 32.

[0132] In this embodiment, as shown, Figure 20 with the first trajectory groove 50 and the second trajectory groove 60 as the reference, the line connecting the center axis (the positioning center axis P) of the first hinge shaft 41 and the center axis (the guiding center axis Q) of the second hinge shaft 42 is first rotated A1 and moved outward by a first distance (from P0Q0→P e Q2 (P1Q1)) in the clockwise direction, then rotated A1 to A max >90° and moved inward by a second distance (from P e Q2 (P1Q1)→P2Q3→P3Q e ) in the clockwise direction; in this embodiment, the third positioning point P3 is not coincided with the first positioning end point P0, so the first distance > the second distance, so that the door body is opened to A maxWhen the angle is greater than 90°, the line connecting the central axis (positioning center axis P) of the first hinge axis 41 and the central axis (guide center axis Q) of the second hinge axis 42 rotates and moves outward by a certain distance (the difference between the first distance and the second distance).

[0133] That is, if we take the first hinge axis 41 and the second hinge axis 42 as references, the first track groove 50 and the second track groove 60 as a whole first rotate counterclockwise by A1 and move inward by a first distance, and then rotate counterclockwise from A1 to A2. max >90° and move outward a second distance; the third positioning point P3 does not coincide with the first positioning endpoint P0, so the first distance > the second distance; relative to the initial state (door closed state), door 30 opens to A. max When the angle is greater than 90°, the first track groove 50 and the second track groove 60 eventually move inward a certain distance. In this embodiment, the first track groove 50 and the second track groove 60 are disposed on the door body 30, that is, the door body 30 opens relative to the hinge fixed on the box body. max During the process of opening the door to 90°, relative to the initial state (closed state), the door 30 moves inward a certain distance to avoid the door 30 touching the cabinet 100 during the opening process.

[0134] Second positioning endpoint P e The first trajectory line S extends in a straight line toward the door sidewall 32, closer to the first positioning endpoint P0. Thus, when the first hinge axis 41 moves toward the door sidewall 32 (during the process of the door 30 opening from the closed state to A1), it is equivalent to the door 30 with the first trajectory groove 50 moving a first distance away from the door sidewall 32 (inward). The inward movement of the door 30 can prevent the side edge 33 from extending too far beyond the side of the cabinet 10 and touching the cabinet 100.

[0135] In the above embodiments, the third positioning point P3 does not coincide with the first positioning endpoint P0; for example Figure 25 As shown, the length of the second track groove 60 can be set according to the actual needs of the product (extending its length relative to the length of the second track groove 60 where the third positioning point P3 does not coincide with the first positioning endpoint P0), so that the third positioning point P3 coincides with the first positioning endpoint P0. Given that the orientations of the first track groove 50 and the second track groove 60 are determined, and the length of the first track groove 50 is determined, compared to the setting where the third positioning point P3 does not coincide with the first positioning endpoint P0, the length of the second track groove 60 satisfies the setting where the third positioning point P3 coincides with the first positioning endpoint P0, allowing the door 30 to open to the maximum angle A. max Maximum. Additionally, when the third positioning point P3 coincides with the first positioning endpoint P0, then the first distance = the second distance.

[0136] In the current example, the refrigerator is arranged in the cabinet 100, and the door body 30 can be opened to the maximum angle A max > 90°, about 105°~110°.

[0137] In summary, in the embodiments one to three of the present application, referring to Figure 10 , Figure 17 , Figure 23 When the door body 30 is in the 90° open state, the door front wall 31 or the side edge 33 of the door body 30 has a gap θ with the first body side wall (reference plane M) of the cabinet 10, that is, the door front wall 31 of the door body 30 is located inside the reference plane M and the distance from the door front wall 31 to the reference plane M is θ>0, so that the door body 30 can continue to open a small angle without interfering with the cabinet 100.

[0138] As another implementable way, by shortening the length of the second track groove 60, the third guide point Q3 of the second track line K is as the second guide end point Q e , the maximum opening angle A of the refrigerator can be limited to 90° max . The specific movement process is the same as the process from the closed state to the 90° open state of the refrigerator in the A max > 90° setting, which will not be described here.

[0139] It should be noted that the opening angles A1, A2 of the door body in each embodiment are only limited to the description and comparison within each embodiment; the opening angles in different embodiments are not comparable.

[0140] Embodiment four

[0141] In the embodiments of the present application, the door body 30 rotates around a variable point during opening, and the variable point has a trace, and the trace is (X=(X1+X2) / 2, Y=(Y1+Y2) / 2);

[0142] Wherein: X represents the distance of the variable point from the door side wall 32, and Y represents the distance of the variable point from the door front wall 31.

[0143] X1 represents the distance of the center point of the first hinge shaft 41 in the first track groove 50 from the door side wall 32 of the door body 30 when the door body 30 is rotated and opened; X2 represents the distance of the center point of the second hinge shaft 42 in the second track groove 60 from the door side wall 32 of the door body 30 when the door body 30 is rotated and opened;

[0144] Y1 represents the distance of the center point of the first hinge shaft 41 in the first track groove 50 from the door front wall 31 of the door body 30 when the door body 30 is rotated and opened; Y2 represents the distance of the center point of the second hinge shaft 42 in the second track groove 60 from the door front wall 31 of the door body 30 when the door body 30 is rotated and opened.

[0145] With reference to the drawings in detail Figures 26-30 , same as example one, the center trajectory line of the first trajectory groove 50 is recorded as the first trajectory line S, and the center trajectory line of the second trajectory groove 60 is recorded as the second trajectory line K; the center axis of the first hinge shaft 41 is recorded as the positioning center axis P, and the center axis of the second hinge shaft 42 is recorded as the guiding center axis Q, corresponding to Figures 26-30 , the point P represents the positioning center axis P, and the point Q represents the guiding center axis Q in the plane projection of the top wall of the cabinet 10.

[0146] When the door body 30 is in the closed state, see Figure 26 , the center axis of the first hinge shaft 41 (the positioning center axis P) is located at the first positioning end point P0 of the first trajectory line S, and the center axis of the second hinge shaft 42 (the guiding center axis Q) is located at the first guiding end point Q0 of the second trajectory line K. At this time, the distance between the positioning center axis P and the door side wall 32 of the door body 30 is a, the distance between the positioning center axis P and the door front wall 31 of the door body 30 is b, the distance between the positioning center axis P and the guiding center axis Q is L (which is a constant value and does not change with the opening of the door body 30), the included angle between the line connecting the positioning center axis P and the guiding center axis Q and the door front wall 31 is n, and the included angle between the extension line of the first trajectory line S of the moving trajectory of the positioning center axis P and the door front wall 31 is γ. The first trajectory groove and the second trajectory groove are perpendicular, that is, the first trajectory line S is perpendicular to the second trajectory line K.

[0147] See Figure 26 , ① When the door body 30 is in the closed state, that is, m = 0°:

[0148] Positioning center axis P: X1 = a; Y1 = b;

[0149] Guiding center axis Q: X2 = a + L*COSn; Y2 = b - L*SINn.

[0150] The distance between the positioning center axis P and the second trajectory line K is: L*COS(γ+n);

[0151] The distance between the guiding center axis Q and the first trajectory line S is: L*SIN*(γ+n).

[0152] See Figure 27 , ② When the rotation angle of the door body is m, 0 ≤ m ≤ γ + n:

[0153] The distance between the positioning center axis P and the second trajectory line K is: L*COS(γ+n-m),

[0154] The distance between the positioning center axis P and the second trajectory line K is: L*COS(γ+n-m),

[0155] K1 = L*COS(γ+n-m) - L*COS(γ+n),

[0156] The distance of the guide center axis Q moving along the second trajectory line K is:

[0157] K2 = L * SIN(γ + n) - L * SIN(γ + n - m).

[0158] The positioning center axis P:

[0159] X1 = a - COSγ * K1; Y1 = b - SINγ * K1;

[0160] The guide center axis Q:

[0161] X2 = a + L * COSn - SINγ * K2; Y2 = b - L * SINn + COSγ * K2.

[0162] Referring to Figure 28 When m = γ + n, the guide center axis Q is located on the extension line of the first trajectory line S, and the distance of the positioning center axis P to the second trajectory line K is L at this time;

[0163] The distance of the positioning center axis P moving along the first trajectory line S is: K1 = L - L * COS(γ + n)

[0164] If ∠Q0Q1P0 is an acute angle as in embodiment one, then at this time, the length of K1 is less than the length of the first trajectory line S;

[0165] If ∠Q0Q1P0 is an obtuse angle as in embodiment two, then at this time, the length of K1 is greater than the length of the first trajectory line S;

[0166] If the first trajectory line S and the second trajectory line K are perpendicular as in embodiment three, then at this time, K1 is equal to the length of the first trajectory line S;

[0167] The distance of the guide center axis Q moving along the second trajectory line K is: K2 = L * SIN(γ + n).

[0168] Referring to Figure 29 , ③ When the rotation angle of the door body is m, γ + n ≤ m ≤ 2(γ + n):

[0169] The distance of the positioning center axis P to the second trajectory line K is: L * COS(m - γ - n);

[0170] The distance of the positioning center axis P moving along the first trajectory line S is:

[0171] K1 = L * COS(m - γ - n) - L * COS(γ + n);

[0172] The distance of the guide center axis Q moving along the second trajectory line K is:

[0173] K2=L*SIN(γ+n)+L*SIN(m-γ-n).

[0174] Positioning center axis P:

[0175] X1=a-COSγ*K1; Y1=b-SINγ*K1;

[0176] Guide center axis Q:

[0177] X2=a+L*COSn-SINγ*K2; Y2=bL*SINn+COSγ*K2.

[0178] When K1=0, the positioning center axis P returns to the initial point. At this time, m=2(γ+n) and K2=2L* SIN(γ+n) (K2 is the length of the second trajectory line K at this time).

[0179] That is, see Figure 30 When m=2(γ+n), K1=0, the positioning center axis P returns to the initial point P0 of the first trajectory line S, and K2=2L*SIN(γ+n). At this time, K2 is equal to the length of the second trajectory line K. That is, in Examples 1 to 3, the third positioning point P3 coincides with the first positioning endpoint P0.

[0180] In embodiments one to four of this application, when the door 30 rotates from the closed state (0°) to A... max During the process of >90°, the first hinge axis 41 moves relative to the first track groove 50 along the first track line S from the first positioning endpoint P0 towards the second positioning endpoint P2, closer to the door side wall 32. e Then from the second positioning endpoint P e The hinge axis 42 is retracted and moved away from the door sidewall 32 to the third positioning point P3; simultaneously, the second hinge axis 42 moves relative to the second track groove 60 along the second track line K from the first guide endpoint Q0 towards the second guide endpoint Q. e That is, during the process of the door 30 rotating from the closed state (0°) to 90°, the first hinge shaft 41 first moves along the first track groove 50 from one end to the other in a straight line, and then retracts and moves in a straight line; the second hinge shaft 42 moves in a unidirectional straight line along the second track groove 60 throughout the entire process, without retraction.

[0181] During the process of opening the door 30 from the closed state to the first angle (the first angle is less than 90°, such as A1 in Embodiment 1, A2 in Embodiment 2, and A1 in Embodiment 3), the first hinge shaft 41 and the second hinge shaft 42 both move in a straight line towards the side wall of the door, and the door 30 always moves inward (towards the side wall of the second door).

[0182] The door body 30 is opened from a first angle (less than 90°) to a maximum angle A max In the process, the first hinge shaft 41 moves linearly away from the door side wall, and the second hinge shaft 42 moves linearly towards the door side wall.

[0183] In the embodiments one to four, the door body 30 is opened from a closed state to a maximum angle A max In the process, the first hinge shaft 41 moves linearly away from the door side wall, and the second hinge shaft 42 moves linearly towards the door side wall.

[0184] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A refrigerator characterized by comprising: It includes: a box body defining a heat-insulated storage space; the box body includes oppositely arranged first and second body side walls; a hinge provided on the box body and close to the first body side wall; the hinge has a first hinge shaft and a second hinge shaft located on a side of the first hinge shaft away from the first body side wall; a door body having a door front wall away from the box body when the door body is closed, and a door side wall close to the hinge and connected with the door front wall; first and second track grooves, each in a straight line, provided on an end of the door body close to the hinge; the first hinge shaft is matched with the first track groove, and the second hinge shaft is matched with the second track groove; The center trajectory line of the first trajectory slot is recorded as a first trajectory line S, and the center trajectory line of the second trajectory slot is recorded as a second trajectory line K; the first trajectory line S comprises a first positioning endpoint P0, a second positioning endpoint P e located on one side of the first positioning endpoint P0 close to the door front wall and the door side wall; the second trajectory line K comprises a first guide endpoint Q0, a second guide endpoint Q e located on one side of the first guide endpoint Q0 away from the door front wall and close to the door side wall; The door body is opened from the closed state to the maximum angle A max During the process of ≥90°, the center axis of the first hinge shaft is unidirectionally moved from the first positioning endpoint P0 to the second positioning endpoint P along the first trajectory line S e , and then unidirectionally moved from the second positioning endpoint P to the first positioning endpoint P0 along the second trajectory line K e , so that the door body can be moved a distance in the direction close to the second body side wall while rotating. e , so that the door body can be moved a distance in the direction close to the second body side wall while rotating.

2. The refrigerator according to claim 1, characterized in that: When the door body is rotated to open to A1, the central axis of the first hinge shaft is located at the second positioning endpoint P of the first trajectory line S e , and the central axis of the second hinge shaft is located at the second guide point Q2 of the second trajectory line K. during rotation of the door body from A1 to A2, a central axis of the first hinge shaft moves from a second positioning point Pe to a first positioning point P1 along a first track line S in a direction away from the door side wall; a central axis of the second hinge shaft moves from a second guide point Q2 to a first guide point Q1 along a second track line K in a direction close to the door side wall; the door body is rotated to A2, and the central axes of the first and second hinge shafts are both on a straight line where the first track line S is located; wherein 0° < A1 < A2 < 90°.

3. The refrigerator according to claim 2, characterized in that: the straight line where the first track line S is located intersects the second track line K at the first guide point Q1, and ∠Q0Q1P0 is an acute angle.

4. The refrigerator according to claim 1, characterized in that: when the door body is rotated to A1, the central axis of the first hinge shaft is located at the first positioning point P1 of the first track line S, and the central axis of the second hinge shaft is located at the first guide point Q1 of the second track line K; at this time, the central axes of the first and second hinge shafts are both on the straight line where the first track line S is located; during rotation of the door body from A1 to A2, the central axis of the first hinge shaft moves from the first positioning point P1 to the second positioning point Pe along the first track line S in a direction close to the door side wall; the central axis of the second hinge shaft moves from the first guide point Q1 to the second guide point Q2 along the second track line K in a direction close to the door side wall; wherein 0° < A1 < A2 < 90°.

5. The refrigerator according to claim 4, characterized in that: the straight line where the first track line S is located intersects the second track line K at the first guide point Q1, and ∠Q0Q1P0 is an obtuse angle.

6. The refrigerator according to claim 1, characterized in that: When the door body is rotated to open to A1, the central axis of the first hinge shaft is located at the second positioning endpoint P of the first trajectory line S e ; the central axis of the second hinge shaft is located at the second guide point Q2 of the second trajectory line K; at the same time, the central axes of the first hinge shaft and the second hinge shaft are on the straight line where the first trajectory line S is located; wherein 0° < A1 < 90°.

7. The refrigerator according to claim 6, characterized in that: the straight line where the first track line S is located intersects the second track line K at the first guide point Q1, and ∠Q0Q1P0 is a right angle.

8. The refrigerator according to claim 1, characterized in that: The door body opens to A max When the door body is opened to >90°, the central axis of the first hinge shaft moves to a third positioning point P3 of the first trajectory line S; the central axis of the second hinge shaft moves to a second guide end point Q of the second trajectory line e .

9. The refrigerator according to any one of claims 1 to 7, characterized in that: when the door body is in a closed state, the central axis of the first hinge shaft is located at a first positioning point P0 of the first track line S, and the central axis of the second hinge shaft is located at a first guide point Q0 of the second track line K.

10. The refrigerator according to any one of claims 1-7, characterized in that: The distance of the first positioning end point P0 from the door front wall is denoted D1, the distance of the second positioning end point P e from the door front wall is denoted D2; the distance of the first guiding end point Q0 from the door front wall is denoted Z1, the distance of the second guiding end point Q e from the door front wall is denoted Z2; wherein D2 < Z1 < D1 < Z2.

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