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; the door body has 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, both of which are linear; the first hinge shaft is matched with the first track groove, and the second hinge shaft is matched with the second track groove; during the process that the door body is opened from the closed state to a first angle, the first hinge shaft moves relative to the first track groove along a straight line to the direction close to the door side wall, and the second hinge shaft moves relative to the second track groove along a straight line to the direction close to the door side wall; the door body always moves to the direction close to the second body side wall; wherein the first angle is less than or equal to 90 degrees; the refrigerator makes the door body not exceed or excessively exceed the side surface 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, which realizes the rotation of the door body around the hinge shaft through the cooperation of the hinge shaft and the shaft sleeve of the door body. In this type of hinge structure, the corner of the door body will exceed the side of the cabinet during the opening process.

[0003] For an embedded refrigerator, it is generally placed in a cabinet, and it is required that the corner of the door body does not excessively exceed the size of the cabinet during the opening process 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, the hinge structure of which makes the door body not or not excessively exceed the side of the cabinet when opened.

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

[0007] a cabinet defining a thermally 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] During the process of opening the door body from the closed state to a first angle, the first hinge shaft moves relative to the first track groove in a linear direction close to the door side wall, and the second hinge shaft moves relative to the second track groove in a linear direction close to the door side wall; the door body always moves in a direction close to the second body side wall; wherein the first angle is ≤ 90°.

[0012] As an embodiment of the present application, 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.

[0013] The first trajectory line S includes a first positioning end point P0, a second positioning end point P e located on a side of the first positioning end point P0 close to the door front wall and the door side wall, and the first trajectory line S extends from the first positioning end point P0 to the second positioning end point P e in a straight line.

[0014] The second trajectory line K includes a first guide end point Q0, a second guide end point Q e located on a side of the first guide end point Q0 away from the door front wall and close to the door side wall, and the second trajectory line K extends from the first guide end point Q0 to the second guide end point Q e in a straight line.

[0015] The first trajectory line S is located on a side of the second trajectory line K close to the door front wall.

[0016] As an embodiment of the present application, when the door body is rotated to open to A1, the center axis of the first hinge shaft is located at the second positioning end point P e of the first trajectory line S, and the center axis of the second hinge shaft is located at the second guide point Q2 of the second trajectory line K.

[0017] During the process that the door body is rotated to open from A1 to A2, the center axis of the first hinge shaft moves from the second positioning end point P e to the first positioning point P1 along the first trajectory line S in a direction away from the door side wall, and the center axis of the second hinge shaft moves from the second guide point Q2 to the first guide point Q1 along the second trajectory line K in a direction close to the door side wall; the door body is rotated to open to A2, and the center axis of the first hinge shaft and the center axis of the second hinge shaft are both on the straight line where the first trajectory line S is located.

[0018] Wherein, 0°<A1<A2<90°.

[0019] 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 guide point Q1, and ∠Q0Q1P0 is an acute angle.

[0020] As an embodiment of the present application, when the door body is rotated to open to A1, the center axis of the first hinge shaft is located at the first positioning point P1 of the first trajectory line S, and the center axis of the second hinge shaft is located at the first guide point Q1 of the second trajectory line K; at this time, the center axis of the first hinge shaft and the center axis of the second hinge shaft are both on the straight line where the first trajectory line S is located.

[0021] During the process that the door body is rotated to open from A1 to A2, the central axis of the first hinge shaft is moved from the first positioning point P1 to the second positioning end point P along the first trajectory line S towards the door side wall e ; the central axis of the second hinge shaft is moved from the first guide point Q1 to the second guide point Q2 along the second trajectory line K towards the door side wall;

[0022] Wherein, 0°<A1<A2<90°.

[0023] 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 guide point Q1, and ∠Q0Q1P0 is an obtuse angle.

[0024] 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 end point 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; meanwhile, 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 line S is located;

[0025] Wherein, 0°<A1<90°.

[0026] 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 guide point Q1, and ∠Q0Q1P0 is a right angle.

[0027] 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 is moved to the third positioning point P3 of the first trajectory line S; the central axis of the second hinge shaft is moved to the second guide end point Q of the second trajectory line e .

[0028] As an embodiment of the present application, when the door body is in the closed state, the central axis of the first hinge shaft is located at the first positioning end point P0 of the first trajectory line S, and the central axis of the second hinge shaft is located at the first guide end point Q0 of the second trajectory line K.

[0029] Compared with the prior art, the present application has the advantages and positive effects that:

[0030] 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 end of the door body close to the hinge is provided with a first track groove and a second track groove, both of which are linear; the first hinge shaft is matched with the first track groove, and the second hinge shaft is matched with the second track groove; during the process that the door body is opened from the closed state to a first angle, the first hinge shaft moves relative to the first track groove along a linear direction close to the door side wall, and the second hinge shaft moves relative to the second track groove along a linear direction close to the door side wall; the door body always moves towards the direction close to the second body side wall; wherein the first angle is less than or equal to 90 degrees; the refrigerator makes the door body not exceed or excessively exceed the side surface of the cabinet when being opened. BRIEF DESCRIPTION OF DRAWINGS

[0031] 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 constitute 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.

[0032] Figure 1 is a perspective view of the refrigerator of the present application;

[0033] Figure 2 is a top view of the refrigerator of the present application;

[0034] Figure 3 is a partial structure schematic view of Figure 2 ;

[0035] Figure 4 is an exploded structure schematic view of the hinge at the upper right corner of the refrigerator of the present application;

[0036] Figure 5 is a relative position view of the first track groove and the second track groove of the refrigerator of the present application;

[0037] Figure 6 is a motion condition schematic view of the first hinge shaft and the second hinge shaft of the first embodiment of the refrigerator of the present application;

[0038] Figure 7 is a view of the hinge when the door body is in the closed state in the first embodiment of the refrigerator of the present application;

[0039] Figure 8 is a view of the hinge when the door body is opened to A1 in the first embodiment of the refrigerator of the present application;

[0040] Figure 9 is a view of the hinge when the door body is opened to A2 in the first embodiment of the refrigerator of the present application;

[0041] Figure 10 is the view of the hinge when the door body is opened to 90° in the first embodiment of the refrigerator of the present application;

[0042] Figure 11 is the view of the hinge when the door body is opened to A max >90° in the first embodiment of the refrigerator of the present application;

[0043] Figure 12 is the movement condition diagram of the first hinge shaft and the second hinge shaft when the third positioning point P3 is set to coincide with the first positioning end point P0 in the first embodiment of the refrigerator of the present application;

[0044] Figure 13 is the movement condition diagram of the first hinge shaft and the second hinge shaft in the second embodiment of the refrigerator of the present application;

[0045] Figure 14 is the view of the hinge when the door body is in the closed state in the second embodiment of the refrigerator of the present application;

[0046] Figure 15 is the view of the hinge when the door body is opened to A1 in the second embodiment of the refrigerator of the present application;

[0047] Figure 16 is the view of the hinge when the door body is opened to A2 in the second embodiment of the refrigerator of the present application;

[0048] Figure 17 is the view of the hinge when the door body is opened to 90° in the second embodiment of the refrigerator of the present application;

[0049] Figure 18 is the view of the hinge when the door body is opened to A max >90° in the second embodiment of the refrigerator of the present application;

[0050] Figure 19 is the movement condition diagram of the first hinge shaft and the second hinge shaft when the third positioning point P3 is set to coincide with the first positioning end point P0 in the second embodiment of the refrigerator of the present application;

[0051] Figure 20 is the movement condition diagram of the first hinge shaft and the second hinge shaft in the third embodiment of the refrigerator of the present application;

[0052] Figure 21 is the view of the hinge when the door body is in the closed state in the third embodiment of the refrigerator of the present application;

[0053] Figure 22 is the view of the hinge when the door body is opened to A1 in the third embodiment of the refrigerator of the present application;

[0054] Figure 23 is the view of the hinge when the door body is opened to 90° in the third embodiment of the refrigerator of the present application;

[0055] Figure 24 is a view of the hinge when the door body is opened to A max > 90° in the third embodiment of the refrigerator of the present application;

[0056] Figure 25 is a schematic view of the movement of the first hinge shaft and the second hinge shaft when the third positioning point P3 coincides with the first positioning endpoint P0 in the third embodiment of the refrigerator of the present application;

[0057] Figure 26 is a view of the parameters represented at the hinge when the door body is in the closed state in the fourth embodiment of the refrigerator of the present application;

[0058] Figure 27 is a view of the parameters represented at the hinge when the door body is opened to an angle m ∈ (0, γ + n] in the fourth embodiment of the refrigerator of the present application;

[0059] Figure 28 is a view of the parameters represented at the hinge when the door body is opened to an angle m = γ + n in the fourth embodiment of the refrigerator of the present application;

[0060] Figure 29 is a view of the parameters represented at the hinge when the door body is opened to an angle m ∈ (γ + n, 2(γ + n)] in the fourth embodiment of the refrigerator of the present application;

[0061] Figure 30 is a view of the parameters represented at the hinge when the door body is opened to an angle m = 2(γ + n) in the fourth embodiment of the refrigerator of the present application.

[0062] In the above figures: cabinet 10; storage chamber 20; cabinet 100; door body 30; door front wall 31; door side wall 32; side edge 33; hinge plate 40; connecting portion 401; extension portion 402; first hinge shaft 41; second hinge shaft 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 endpoint Q0; first guide point Q1; second guide point Q2; third guide point Q3; second guide endpoint Q e . DETAILED DESCRIPTION

[0063] Hereinafter, the present application will be described in detail through exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment can be beneficially incorporated into other embodiments without further recitation.

[0064] In the description of the present application, it needs 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 only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0065] The terms "first", "second", "third", "fourth", "fifth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth" can explicitly or implicitly include one or more of the features.

[0066] Hereinafter, 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.

[0067] Example 1

[0068] 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.

[0069] Specifically, the refrigerating device can include an evaporator, a compressor, a condenser, and an expansion device, and can generate cold air by using the 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 thermally insulate the storage compartment 20.

[0070] 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 maintaining air at a temperature of about 0 to 5°C; the freezing compartment is used to store food in a freezing mode by maintaining air at a temperature of 0 to -30°C. It should be noted that the setting of the plurality of storage compartments 20 of the refrigerator is not limited to the above example.

[0071] The front end of the storage compartment 20 is formed with a loading / unloading opening to place food into the storage compartment 20 or take food out of the storage compartment 20; a rotatable door body 30 is provided on the cabinet 10 to open or close the loading / unloading opening of the storage compartment 20. Specifically, the door body 30 is rotatably connected to the cabinet 10 by hinges located at the upper portion and hinges located at the lower portion.

[0072] The cabinet 10 includes first and second body side walls (i.e., left and right side walls of the cabinet 10) disposed opposite each other; a hinge is disposed on the cabinet 10 and is 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, and 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.

[0073] 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.

[0074] Here, it should be noted that the embodiments of the present application are only used as an example of the above-mentioned first hinge shaft 41 and second hinge shaft 42 provided on the hinge, and the first track groove 50 and the second track groove 60 provided on the door body 30; but the setting 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 setting cooperation on the door body 30 or the door body 30. One of the first hinge shaft 41 and the first track groove 50 is provided on the door body 30, and the other is provided on the hinge; the second hinge shaft 42 and the second track groove 60 are set in the same way. The principle is the same, only the position is different, which is a conventional setting and will not be described in detail.

[0075] The hinge includes a hinge plate 40 fixedly connected to the cabinet 10, and the hinge plate 40 includes 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 fasteners such as screws, pins, and bolts.

[0076] Specifically, for the hinge on 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 a rotating shaft. The hinge plate 40, the first hinge shaft 41 and the second hinge shaft 42 can be integrally formed, but unlike this, the hinge plate 40, the first hinge shaft 41 and the second hinge shaft 42 can be provided separately 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.

[0077] For the hinge at the lower end of the door 30, the connecting part 401 is connected to the front end face of the housing 10. The first hinge shaft 41 and the second hinge shaft 42 extend upward on the hinge plate 40.

[0078] Corresponding to the position of the hinge plate 40, the upper and lower ends of the door body 30 are provided with a first track groove 50 and a second track groove 60. The two first track grooves 50 at the upper and lower ends of the door body 30 are vertically aligned, and the two second track grooves 60 are vertically aligned as well. That is, in the projection onto the plane containing the top wall of the housing 10, the centerline projections of the two first track grooves 50 at the upper and lower ends of the door body 30 completely coincide, and the centerline projections of the two second track grooves 60 at the upper and lower ends of the door body 30 completely coincide.

[0079] In this embodiment, we continue to refer to... Figure 2 The plane containing the side of the cabinet 10 closest to the hinge plate 40 is defined as the reference plane M. The refrigerator is housed in the cabinet 100. The side of the reference plane M closest to the cabinet 100 is the outer side, and the opposite side closest to the storage compartment 20 is the inner side. When the refrigerator is placed in the cabinet 100, to prevent damage from uneven ground or cabinet deformation, the distance α between the cabinet 100 and the side of the refrigerator (i.e., the side wall of the first body is the reference plane M) is set to 5mm. To ensure the refrigerator door 30 opens normally, its side edge 33 should not extend too far beyond the side of the cabinet 10 (reference plane M) during rotation, to avoid collision between the side edge 33 and the cabinet 100, which could prevent the door 30 from opening properly.

[0080] To meet the above requirements, the door 30 needs to be able to move inward during rotation, so that the side edge 33 does not extend too far beyond the side of the housing 10 (reference plane M). Taking the hinge plate 40 located on the right side of the door 30 (in this example, the left side wall of the housing 10 is the first body side wall) as an example, the inside is the left side, that is, the door 30 needs to be able to move to the left; taking the hinge plate 40 located on the door 30 as an example, the inside is the right side, that is, the door 30 needs to be able to move to the right.

[0081] In the 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 are each composed of only one 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. The first track line S is a straight line, and the second track line K is also a straight line, as limited by the shape of the first track groove 50 and the second track groove 60 composed of one linear groove. 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 at 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 in the direction of the inboard (close to the second body side wall) while rotating, thereby avoiding mutual 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 first track groove 50 and the second track groove 60 to be arranged for the inboard movement of the door body 30 when the door body 30 is opened.

[0082] 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 in the process of being opened, 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 convenience of 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.

[0083] In addition, in the 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 Figures 6-12 , the movement of the first hinge shaft 41 along the first track groove 50 is equivalent to the movement of the positioning central axis 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 central axis Q along the second track line K, so that the door body 30 can move a distance in the direction of the inboard (close to the second body side wall) while rotating, thereby avoiding mutual interference between the door body 30 and the cabinet 100 when the door body 30 is opened.

[0084] As shown in Figures 6-12 , the first track line S includes a first positioning end point P0 away from the door side wall 32 and a second positioning end point P e ; the second positioning end point Pe 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 .

[0085] 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.

[0086] like Figure 7 As 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.

[0087] Combination Figure 5At this time, the vertical distance between the first hinge shaft 41 and the second hinge shaft 42 in the direction perpendicular to the door front wall 31 is denoted as L1=D1-Z1, where 2.5mm≤L1≤10mm, and the horizontal distance L2 between the first hinge shaft 41 and the second hinge shaft 42 in the direction perpendicular to the door side wall 32 satisfies 7.5mm≤L2≤30mm. In the current example, L1=5mm and 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 exceeds the side of the cabinet 10 by a small distance, specifically less than 3mm, during the process of opening the door.

[0088] In some embodiments, there is a gap δ>0 (not shown in the figure) between the second hinge shaft 42 and the end wall of the second track groove 60 when the door body 30 is in the closed state, so that the door body 30 is prevented from being bounced away by the second hinge shaft 42 contacting the first starting end of the second track groove 60 when it is forced to hit the cabinet 10.

[0089] Referring to Figures 6-11 , the straight line on which the first track line S is located intersects the second track line K at a first guide point Q1. The angle between the second track line K and the door front wall 31 is denoted as φ (not shown in the figure), where φ<90°, that is, φ is an acute angle; then, since the first track line S extends along a straight line from the first positioning end point P0 to the second positioning end point P e , there is ∠Q0Q1P0∈(90°-φ, 180°-φ). Since φ<90°, it is known that ∠Q0Q1P0 can be set as an acute angle or a right angle or an obtuse angle.

[0090] In the current embodiment, ∠Q0Q1P0 is set as an acute angle, and the maximum opening angle A max of the refrigerator is greater than 90°. When the door body 30 is rotated and opened to a specific angle, the relative positions of the first hinge shaft 41 relative to the first track groove 50 and the second hinge shaft 42 relative to the second track groove 60 are as follows:

[0091] As shown in Figure 7 , when the door body 30 is in the closed state (0° opening), the center axis (positioning center axis P) of the first hinge shaft 41 is located at the first positioning end point P0 of the first track line S away from the door side wall 32, and the center axis (guide center axis Q) of the second hinge shaft 42 is located at the first guide end point Q0 of the second track line K away from the door side wall 32.

[0092] As shown in Figure 8 , when the door body is rotated and opened to A1, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning end point P e of the first track line S close to the door side wall 32, and the center axis (guide center axis Q) of the second hinge shaft 42 is located at the second guide point Q2 of the second track line K.

[0093] 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.

[0094] 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.

[0095] 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 end point Q e .

[0096] Wherein, 0° max A1 e A2 e ; the first positioning end point P0, the third positioning point P3, the second positioning point P2, the first positioning point P1, and the second positioning end point P e are sequentially distributed along the first trajectory line S; the first guiding end point Q0, the second guiding point Q2, the first guiding point Q1, the third guiding point Q3, and the second guiding end point Q e are sequentially distributed along the second trajectory line K. In this embodiment, it is assumed that ∠Q0Q1P0=76°, and the process of rotating the door body 30 to open will be described in detail as follows:

[0097] Specifically, as shown in Figure 8 , when the door body 30 is rotated to open from the closed state to A1, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the first positioning end point P0 to the second positioning end point P e along the first trajectory line S towards the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 moves from the first guiding end point Q0 to the second guiding point Q2 along the second trajectory line K towards the door side wall 32. At this time, the door body is rotated to open to A1, and the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning end point P eWhen the door rotates open to A1, the central axis (positioning center axis P) of the first hinge shaft 41 is located at the end of the first track groove 50 near the door side wall 32. The first hinge shaft 41 moves along the first track groove 50 towards the door side wall 32 to its limit position. During the process of the door rotating open from the closed state to A1, both the first hinge shaft 41 and the second hinge shaft 42 move in a straight line, and the door 30 always moves inward.

[0098] 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 moved from the second positioning endpoint P. e The door is retracted and moved away from the door sidewall 32 along the first trajectory line S 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 towards the door sidewall 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.

[0099] 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.

[0100] like Figure 11 As shown, door 30 is rotated 90° to open to A. max During 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... maxWhen 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.

[0101] 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).

[0102] 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. 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.

[0103] In this embodiment, the second positioning endpoint P eThe 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.

[0104] In the above embodiments, the third positioning point P3 does not coincide with the first positioning endpoint P0; for example Figure 12 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.

[0105] 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°.

[0106] Example 2

[0107] like Figures 13-19 As shown, the setting principle of this embodiment is the same as that of embodiment one, the difference being that in this embodiment, ∠Q0Q1P0 is set as an obtuse angle; 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:

[0108] 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.

[0109] like Figure 15As 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.

[0110] 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;

[0111] 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.

[0112] 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 .

[0113] 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:

[0114] Specifically, such as Figure 15As 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 first positioning point P1; 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 first guide point Q1. At this time, the door rotates open to A1, 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.

[0115] like Figure 16 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 moves from the first positioning point P1 along the first trajectory line S towards the direction close to the door side wall 32 to the second positioning endpoint P. e The central axis (guide center axis Q) of the second hinge axis 42 moves from the first guide point Q1 along the second trajectory line K towards the second guide point Q2, closer to the door side wall 32. At this time, the door rotates open to A2, and the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint P near the door side wall 32 on the first trajectory line S. e When the door rotates open to A2, the central axis (positioning center axis P) of the first hinge shaft 41 is located at the end of the first track groove 50 near the door side wall 32. The first hinge shaft 41 moves along the first track groove 50 towards the door side wall 32 to its limit position. Therefore, during the process of the door 30 opening from the closed state to A2, both the first hinge shaft 41 and the second hinge shaft 42 move unidirectionally in a straight line, and the door 30 always moves inward.

[0116] like Figure 17 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 is moved from the second positioning endpoint P. e The hinge 41 is retracted and moved away from the door sidewall 32 along the first trajectory line S to the second positioning point P2; the central axis (guide center axis Q) of the second hinge axis 42 continues to move from the second guide point Q2 along the second trajectory line K towards the door sidewall 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.

[0117] like Figure 18 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.

[0118] 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).

[0119] 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.

[0120] 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.

[0121] 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.

[0122] 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.

[0123] 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°.

[0124] Example 3

[0125] 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:

[0126] 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.

[0127] 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.

[0128] 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.

[0129] As shown in Figure 24 , 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 end point Q e .

[0130] , 0° < A1 < 90° < A max ; the first positioning end point P0, the third positioning point P3, the second positioning point P2, and the second positioning end point P e (the first positioning point P1) are sequentially distributed along the first trajectory line S; the first guiding end point Q0, the second guiding point Q2 (the first guiding point Q1), the third guiding point Q3, and the second guiding end point Q e are sequentially distributed along the second trajectory line K. The following specifically describes the process of the door body 30 being rotated and opened:

[0131] Specifically, as shown in Figure 22 , during the process of the door body 30 being rotated and opened from the closed state to A1, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the first positioning end point P0 to the second positioning end point P e along the first trajectory line S towards the door side wall 32; the center axis (guiding center axis Q) of the second hinge shaft 42 moves from the first guiding end point Q0 to the second guiding point Q2 along the second trajectory line K towards the door side wall 32. At this time, the door body is rotated and opened to A1, the center axis (positioning center axis P) of the first hinge shaft 41 is located at the second positioning end point P e of the first trajectory line S close to the door side wall 32; that is, when the door body is rotated and opened to A1, 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 towards the door side wall 32. At the same 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. In the above process of the door body 30 being opened from the closed state to A1, 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.

[0132] As shown in Figure 23 , during the process of the door body 30 being rotated and opened from A1 to 90°, the center axis (positioning center axis P) of the first hinge shaft 41 moves from the second positioning end point P eThe hinge 41 is retracted and moved away from the door sidewall 32 along the first trajectory line S to the second positioning point P2; the central axis (guide center axis Q) of the second hinge axis 42 continues to move from the second guide point Q2 along the second trajectory line K towards the door sidewall 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.

[0133] like Figure 24 As shown, door 30 is rotated 90° to open to A. max During 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.

[0134] In this embodiment, as Figure 20 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 (P1Q1)), 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).

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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°.

[0139] In summary, in Embodiments 1 to 3 of this application, see...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 be opened by a small angle without interfering with the cabinet 100.

[0140] As another implementable manner, 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 that from the closed state to the 90° open state in the A max >90° setting in each embodiment, which will not be described here.

[0141] It should be noted that the door opening angles A1 and A2 in each embodiment are only for illustration and comparison within each embodiment; the opening angles in different embodiments are not comparable.

[0142] Embodiment Four

[0143] In the embodiments of the present application, the door body 30 rotates around a variable point in the opening process, and the variable point has a trace, which is (X=(X1+X2) / 2, Y=(Y1+Y2) / 2);

[0144] 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.

[0145] 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;

[0146] 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.

[0147] Specifically refer to 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 projection of the top wall of the cabinet 10 in the plane, point P represents the positioning center axis P, and point Q represents the guiding center axis Q.

[0148] When the door body 30 is in the closed state, referring to 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; the included angle between the extension line of the first trajectory line S of the moving track of the positioning center axis P and the door front wall 31 of the door body 30 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.

[0149] Referring to Figure 26 ① When the door body 30 is in the closed state, that is, m = 0°:

[0150] Positioning center axis P: X1 = a; Y1 = b;

[0151] Guiding center axis Q: X2 = a + L*COSn; Y2 = b - L*SINn.

[0152] The distance between the positioning center axis P and the second trajectory line K is: L*COS(γ+n);

[0153] The distance between the guiding center axis Q and the first trajectory line S is: L*SIN*(γ+n).

[0154] Referring to Figure 27 ② When the rotation angle of the door body is m, 0 ≤ m ≤ γ + n:

[0155] The distance between the positioning center axis P and the second trajectory line K is: L*COS(γ+n-m),

[0156] The distance of the positioning center axis P moving along the first trajectory line S is:

[0157] K1 = L*COS(γ+n-m) - L*COS(γ+n),

[0158] The distance of the guiding center axis Q moving along the second trajectory line K is:

[0159] K2 = L * SIN(gamma + n) - L * SIN(gamma + n - m).

[0160] Positioning central axis P:

[0161] X1 = a - COS(gamma) * K1; Y1 = b - SIN(gamma) * K1;

[0162] Guiding central axis Q:

[0163] X2 = a + L * COS(n) - SIN(gamma) * K2; Y2 = b - L * SIN(n) + COS(gamma) * K2.

[0164] When m = gamma + n, the guiding central axis Q is located on the extension line of the first trajectory line S, and the distance between the positioning central axis P and the second trajectory line K is L; Figure 28

[0165] The distance that the positioning central axis P moves along the first trajectory line S is: K1 = L - L * COS(gamma + n)

[0166] 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;

[0167] 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;

[0168] If the first trajectory line S is perpendicular to the second trajectory line K as in Embodiment Three, then at this time, K1 is equal to the length of the first trajectory line S;

[0169] The distance that the guiding central axis Q moves along the second trajectory line K is: K2 = L * SIN(gamma + n).

[0170] When the rotation angle of the door body is m, gamma + n ≤ m ≤ 2(gamma + n): Figure 29 The distance between the positioning central axis P and the second trajectory line K is: L * COS(m - gamma - n);

[0171] The distance that the positioning central axis P moves along the first trajectory line S is:

[0172] K1 = L * COS(m - gamma - n) - L * COS(gamma + n);

[0173] The distance that the guiding central axis Q moves along the second trajectory line K is:

[0174] K2 = L * SIN(gamma + n) + L * SIN(m - gamma - n).

[0175] ​​

[0176] Positioning center axis P:

[0177] X1=a-COSγ*K1; Y1=b-SINγ*K1;

[0178] Guiding center axis Q:

[0179] X2=a+L*COSn-SINγ*K2; Y2=b-L*SINn+COSγ*K2.

[0180] When K1=0, the positioning center axis P returns to the initial point, and m=2(γ+n) can be obtained at this time, and K2=2L* SIN(γ+n) (K2 is the length of the second track line K at this time).

[0181] That is, referring to Figure 30 When m=2(γ+n), K1=0, the positioning center axis P returns to the initial point P0 of the first track line S, and K2=2L* SIN(γ+n) at this time, that is, the third positioning point P3 coincides with the first positioning end point P0 in the first embodiment to the third embodiment.

[0182] In the first embodiment to the fourth embodiment of the present application, when the door body 30 is rotated from the closed state (0°) to A max >90°, the first hinge shaft 41 moves along the first track line S from the first positioning end point P0 to the second positioning end point P e towards the door side wall 32, and then moves from the second positioning end point P e backwards to the third positioning point P3 away from the door side wall 32; at the same time, the second hinge shaft 42 moves along the second track line K from the first guiding end point Q0 to the second guiding end point Q e towards the door side wall 32. That is, in the process of rotating the door body 30 from the closed state (0°) to 90°, the first hinge shaft 41 first moves along the first track slot 50 from one end to the other end along a straight line, and then moves backwards along a straight line; the second hinge shaft 42 moves along the second track slot 60 in a one-way straight line throughout the process, and does not move backwards throughout the process.

[0183] Wherein, in the process of opening the door body 30 from the closed state to the first angle (the first angle is less than 90°, such as the first angle A1 in the first embodiment, the first angle A2 in the second embodiment, and the first angle A1 in the third embodiment), the first hinge shaft 41 and the second hinge shaft 42 both move along a straight line towards the door side wall, and the door body 30 always moves inward (towards the second body side wall).

[0184] In the process of opening the door body 30 from the first angle (less than 90°) to the maximum angle A maxIn the process of opening the door body 30 from the closed state to the maximum angle A, 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.

[0185] In the embodiments one to four of the present application, the door body 30 is opened from the closed state to the maximum angle A max In the process of opening the door body 30 from the closed state to the maximum angle A, 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.

[0186] 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 comprises: a box body defining a heat-insulated storage room; the box body comprises first and second body side walls arranged oppositely; 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 the 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 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; in the process of opening the door body from the closed state to a first angle, the first hinge shaft moves relative to the first track groove in a straight line towards the direction close to the door side wall, and the second hinge shaft moves relative to the second track groove in a straight line towards the direction close to the door side wall; the door body always moves towards the direction close to the second body side wall; wherein the first angle ≤ 90°.

2. The refrigerator according to claim 1, characterized in that: 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 trajectory S comprises a first positioning end point P0, a second positioning end point P e located on a side of the first positioning end point P0 close to the door front wall and door side wall e ; The second trajectory K comprises a first guide end point Q0, a second guide end point Q e , located on a side of the door closer opposite the first guide end point Q0 e ; the first track line S is located on the side of the second track line K close to the door front wall.

3. The refrigerator according to claim 2, 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 the process that the door body is rotated to open from A1 to A2, the central axis of the first hinge shaft moves from the second guiding point Q2 to the first guiding point Q1 along the second trajectory line K, and the central axis of the second hinge shaft moves from the second positioning point P2 to the first positioning point P1 along the first trajectory line S. e During the process that the door body is rotated to open from A1 to A2, the central axis of the first hinge shaft moves from the second guiding point Q2 to the first guiding point Q1 along the second trajectory line K, and the central axis of the second hinge shaft moves from the second positioning point P2 to the first positioning point P1 along the first trajectory line S. wherein 0° < A1 < A2 < 90°.

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

5. The refrigerator according to claim 2, characterized in that: when the door body is rotated and opened to A1, the center axis of the first hinge shaft is located at a first positioning point P1 of the first track line S, and the center axis of the second hinge shaft is located at a first guide point Q1 of the second track line K; at this time, the center axis of the first hinge shaft and the center axis of the second hinge shaft are both on the straight line where the first track line S is located. During the process that the door body is rotated from A1 to A2, the central axis of the first hinge shaft is moved from the first positioning point P1 to the second positioning endpoint P2 along the first trajectory line S towards the door side wall e ; the central axis of the second hinge shaft is moved from the first guide point Q1 to the second guide point Q2 along the second trajectory line K towards the direction of the door side wall; wherein 0° < A1 < 90°.

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

7. The refrigerator according to claim 2, 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°.

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

9. The refrigerator according to any one of claims 2 to 8, 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 .

10. The refrigerator according to any one of claims 2 to 8, characterized in that: when the door body is in the closed state, the center axis of the first hinge shaft is located at a first positioning end point P0 of the first track line S, and the center axis of the second hinge shaft is located at a first guide end point Q0 of the second track line K.

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