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 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; in the process that the door body is opened from a first angle to A max >90°, the first hinge shaft moves away from the door side wall along a straight line relative to the first track groove, and the second hinge shaft moves close to the door side wall along a straight line relative to the second track groove; wherein the first angle is less than or equal to 90°; the refrigerator makes the door body not exceed or excessively exceed the side of the cabinet when the door body is opened.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more particularly to a refrigerator. Background Technology

[0002] In related technologies, the hinge structure of refrigerator doors is mostly of the single-axis type. The door rotates around the hinge axis by cooperating with the door's bushing. When the door is opened, the corner of the door will extend beyond the side of the refrigerator body.

[0003] For built-in refrigerators, which are typically placed inside cabinets, the corners of the door cannot extend too far beyond the cabinet dimensions when the door is opened to 90 degrees, thus limiting the refrigerator's usability. Summary of the Invention

[0004] This invention at least partially solves one of the technical problems in the related art.

[0005] Therefore, this application aims to provide a refrigerator whose hinge structure ensures that the door does not extend beyond or excessively extend beyond the side of the refrigerator body when opened.

[0006] The refrigerator according to this application includes:

[0007] A housing that defines an insulated storage compartment; the housing includes a first body sidewall and a second body sidewall disposed opposite to each other;

[0008] A hinge is provided on the housing and close to the side wall of the first body; the hinge has a first hinge axis and a second hinge axis located on the side of the first hinge axis away from the side wall of the first body;

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

[0010] The first track groove and the second track groove are both straight and are located at the end of the door body near 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 door opens from the first angle to A. max During the process of >90°, the first hinge axis moves in a straight line away from the door sidewall relative to the first track groove, and the second hinge axis moves in a straight line towards the door sidewall relative to the second track groove; wherein, the first angle is ≤90°.

[0012] In one embodiment of this application, the center trajectory line of the first trajectory groove is denoted as the first trajectory line S, and the center trajectory line of the second trajectory groove is denoted as the second trajectory line K;

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

[0014] The second trajectory line K includes a first guide endpoint Q0 and a second guide endpoint Q located on the side of the first guide endpoint Q0 that is away from the front wall of the door and close to the side wall of the door. e The second trajectory line K extends from the first guide endpoint Q0 along a straight line to the second guide endpoint Q. e ;

[0015] The first trajectory line S is located on the side of the second trajectory line K closer to the front wall of the door, so that the door can move a certain distance towards the side wall of the second body while rotating.

[0016] In one embodiment of this application, when the door rotates open to A1, the central axis of the first hinge axis is located at the second positioning endpoint P of the first trajectory line S. e The central axis of the second hinge axis is located at the second guide point Q2 of the second trajectory line K;

[0017] During the process of the door rotating open from A1 to A2, the central axis of the first hinge shaft moves from the second positioning endpoint Pe along the first trajectory line S away from the door sidewall to the first positioning point P1; the central axis of the second hinge shaft moves from the second guide point Q2 along the second trajectory line K towards the door sidewall to the first guide point Q1; when the door rotates open to A2, the central axes of both the first and second hinge shafts are on the straight line where the first trajectory line S is located;

[0018] Where 0° < A1 < A2 < 90°.

[0019] In one embodiment of this application, the straight line containing the first trajectory line S intersects the second trajectory line K at the first guide point Q1, and ∠Q0Q1P0 is an acute angle.

[0020] In one embodiment of this application, when the door is rotated open to A1, the central axis of the first hinge axis is located at the first positioning point P1 of the first trajectory line S; the central axis of the second hinge axis is located at the first guiding point Q1 of the second trajectory line K; at this time, the central axes of the first hinge axis and the central axes of the second hinge axis are both on the straight line where the first trajectory line S is located.

[0021] During the process of the door rotating open from A1 to A2, the central axis of the first hinge shaft moves from the first positioning point P1 along the first trajectory line S towards the door side wall to the second positioning end point Pe; the central axis of the second hinge shaft moves from the first guide point Q1 along the second trajectory line K towards the door side wall to the second guide point Q2.

[0022] Where 0° < A1 < A2 < 90°.

[0023] In one embodiment of this application, the straight line containing the first trajectory line S intersects the second trajectory line K at the first guide point Q1, and ∠Q0Q1P0 is an obtuse angle.

[0024] In one embodiment of this application, when the door rotates open to A1, the central axis of the first hinge axis is located at the second positioning endpoint P of the first trajectory line S. e The central axis of the second hinge axis 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 axis and the central axes of the second hinge axis are both on the straight line where the first trajectory line S is located.

[0025] Where 0° < A1 < 90°.

[0026] In one embodiment of this application, the straight line containing the first trajectory line S intersects the second trajectory line K at the first guide point Q1, and ∠Q0Q1P0 is a right angle.

[0027] As one embodiment of this application, the door is opened to A. max When the angle is greater than 90°, the central axis of the first hinge axis moves to the third positioning point P3 of the first trajectory line S; the central axis of the second hinge axis moves to the second guide endpoint Q of the second trajectory line. e .

[0028] In one embodiment of this application, when the door is in the closed state, the central axis of the first hinge axis is located at the first positioning endpoint P0 of the first trajectory line S, and the central axis of the second hinge axis is located at the first guiding endpoint Q0 of the second trajectory line K.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0030] This invention proposes a refrigerator, comprising a cabinet, a door, and a hinge having a first hinge axis and a second hinge axis; the door has a front wall and a side wall; the end of the door near the hinge is provided with a first track groove and a second track groove, both of which are straight lines; the first hinge axis cooperates with the first track groove, and the second hinge axis cooperates with the second track groove; the door opens from a first angle to A. maxDuring the process of >90°, the first hinge axis moves in a straight line away from the door sidewall relative to the first track groove, and the second hinge axis moves in a straight line towards the door sidewall relative to the second track groove; wherein, the first angle is ≤90°; the refrigerator of the present invention ensures that the door does not extend beyond or excessively extend beyond the side of the cabinet when opened. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

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

[0034] Figure 3 yes Figure 2 A partial structural diagram;

[0035] Figure 4 This is an exploded structural diagram of the hinge in the upper right corner of the refrigerator of the present invention.

[0036] Figure 5 This is a view showing the relative positions of the first track groove and the second track groove of the refrigerator of the present invention;

[0037] Figure 6 This is a schematic diagram showing the movement of the first hinge shaft and the second hinge shaft in Embodiment 1 of the refrigerator of the present invention;

[0038] Figure 7 This is a view of the hinge when the door is in the closed state in Embodiment 1 of the refrigerator of the present invention;

[0039] Figure 8 This is a view of the hinge when the door of the refrigerator of the present invention is opened to A1 in Embodiment 1;

[0040] Figure 9 This is a view of the hinge when the door of the refrigerator of the present invention is opened to A2 in Embodiment 1;

[0041] Figure 10 This is a view of the hinge when the door of the refrigerator of the present invention is opened to 90° in Embodiment 1;

[0042] Figure 11 In Embodiment 1 of the refrigerator of the present invention, the door is opened to A. max View at the hinge when >90°;

[0043] Figure 12 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 1 of the refrigerator of the present invention.

[0044] Figure 13 This is a schematic diagram showing the movement of the first hinge shaft and the second hinge shaft in Embodiment 2 of the refrigerator of the present invention;

[0045] Figure 14 This is a view of the hinge when the door is in the closed state in Embodiment 2 of the refrigerator of the present invention;

[0046] Figure 15 This is a view of the hinge when the door of the refrigerator of the present invention is opened to A1 in Embodiment 2;

[0047] Figure 16 This is a view of the hinge when the door of the refrigerator of the present invention is opened to A2 in Embodiment 2;

[0048] Figure 17 This is a view of the hinge when the door of the refrigerator of the present invention is opened to 90° in Embodiment 2;

[0049] Figure 18 In Embodiment 2 of the refrigerator of the present invention, the door is opened to A. max View at the hinge when >90°;

[0050] Figure 19 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 2 of the refrigerator of the present invention.

[0051] 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;

[0052] 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;

[0053] 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;

[0054] 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;

[0055] 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°;

[0056] Figure 25This 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.

[0057] 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;

[0058] 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.

[0059] 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;

[0060] 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;

[0061] 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.

[0062] 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 trajectory groove 60; Second trajectory line K; First guide endpoint Q0; First guide point Q1; Second guide point Q2; Third guide point Q3; Second guide endpoint Q e . Detailed Implementation

[0063] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0064] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] The terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," "fourth," or "fifth" may explicitly or implicitly include one or more of that feature.

[0066] In the following description, embodiments of this 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 opposite side is defined as the rear side.

[0067] Example 1

[0068] Reference Figure 1 The refrigerator includes a cabinet 10 having a storage compartment 20, a door 30 connected to the cabinet 10 to open and close the storage compartment 20, and a refrigeration unit for supplying cold air to the storage compartment 20.

[0069] Specifically, the refrigeration unit may include an evaporator, a compressor, a condenser, and an expansion device, and may generate cold air by using the latent heat of vaporization of the refrigerant. The cabinet 10 includes an inner liner defining a storage compartment 20, an outer shell connected to the outside of the inner liner to form the appearance of the refrigerator, and an insulation layer disposed between the inner liner and the outer shell to insulate the storage compartment 20.

[0070] The cabinet 10 defines a plurality of storage compartments 20. In this embodiment, the plurality of storage compartments 20 includes a refrigerator compartment and a freezer compartment located below the refrigerator compartment; as one possible configuration, the refrigerator compartment is used to store food in a refrigeration mode by maintaining the air at a temperature of about 0 to 5°C; the freezer compartment is used to store food in a freezing mode by maintaining the air at a temperature of 0 to -30°C. It should be noted that the arrangement of the plurality of storage compartments 20 of the refrigerator is not limited to the example described above.

[0071] The front end of the storage compartment 20 has an opening for placing food into or taking food out of the storage compartment 20; the box body 10 is provided with a rotatable door 30 to open or close the opening of the storage compartment 20. Specifically, the door 30 is rotatably connected to the box body 10 by a hinge located at the top and a hinge located at the bottom.

[0072] The enclosure 10 includes a first side wall and a second side wall (i.e., the left and right side walls of the enclosure 10) disposed opposite to each other; a hinge is disposed on the enclosure 10 and close to the first side wall; the door 30 has a front wall 31 that is away from the enclosure 10 when the door 30 is closed, and a side wall 32 that is close to the hinge and connected to the front wall 31; for example, when the hinge is located on the right side of the enclosure 10, the right side of the door 30 is the side wall 32; when the hinge is located on the left side of the enclosure 10, the left side of the door 30 is the side wall 32. The front wall 31 and the side wall 32 of the door 30 intersect to form a side edge 33.

[0073] Reference Figures 2 to 5 The hinge has a first hinge shaft 41 and a second hinge shaft 42 located on the side of the first hinge shaft 41 away from the side wall of the first body; the end of the door body 30 near 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 process of the door body 30 rotating 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] It should be noted that this embodiment only uses the example of the first hinge shaft 41 and the second hinge shaft 42 being located on the hinge, and the first track groove 50 and the second track groove 60 being located on the door body 30. 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 arrangement and cooperation on the door body 30. The first hinge shaft 41 and the first track groove 50 can be matched, with one located on the door body 30 and the other on the hinge; the matching second hinge shaft 42 and the second track groove 60 are arranged similarly. The principle is the same, only the position is different, and since this is a conventional arrangement, it will not be described in detail.

[0075] The hinge includes a hinge plate 40 fixedly connected to the housing 10. The hinge plate 40 includes a connecting portion 401 connected to the housing 10 and a horizontal, plate-shaped extension 402 extending forward from the connecting portion 401. The connecting portion 401 can be fastened to the top wall of the housing 10 by fasteners such as screws, pins, and bolts.

[0076] Specifically, the hinge at the upper end of the door 30 includes a hinge plate 40 connected to the upper end of the housing 10, and a first hinge shaft 41 and a second hinge shaft 42 connected to the hinge plate 40 to form a rotation axis. The hinge plate 40, the first hinge shaft 41, and the second hinge shaft 42 can be integrally formed; however, they can also be provided separately and assembled together. The first hinge shaft 41 and the second hinge shaft 42 are formed on the extension 402 and extend vertically downwards.

[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 this embodiment, both the first track groove 50 and the second track groove 60 are straight lines; that is, both the first track groove 50 and the second track groove 60 are composed of only a single straight section of groove. The first hinge shaft 41 engages with the first track groove 50, and the second hinge shaft 42 engages with the second track groove 60. The center track line of the first track groove 50 is denoted as the first track line S, and the center track line of the second track groove 60 is denoted as the second track line K. Due to the shape of the first track groove 50 and the second track groove 60 being composed of a single straight section of groove, the first track line S is a straight line, and the second track line K is also a straight line. The first trajectory line S extends in a straight line from the side away from the front wall 31 and the side wall 32 towards the side closer to the front wall 31 and the side wall 32. The second trajectory line K extends in a straight line from the side closer to the front wall 31 and away from the side wall 32 towards the side wall 32, with the first trajectory line S located on the side of the second trajectory line K closer to the front wall 31 and the side wall 32. This allows the door 30 to move inward (closer to the second side wall) a certain distance while rotating, thus avoiding interference between the door 30 and the cabinet 100 when the door is opened. The first trajectory groove 50 and the second trajectory groove 60 are designed to make full use of the thickness of the door 30 and avoid increasing the thickness of the door 30 by setting the first trajectory groove 50 and the second trajectory groove 60 when the door 30 needs to move inward when it is opened.

[0082] Since there is a relative motion relationship between the first track groove 50 and the first hinge axis 41, and between the second track groove 60 and the second hinge axis 42, if the door 30 is opened with the first track groove 50 and the second track groove 60 as stationary reference points, it is equivalent to the first hinge axis 41 moving within the first track groove 50 and the second hinge axis 42 moving within the second track groove 60. For ease of description, this application uses the first track groove 50 and the second track groove 60 as reference points, and describes the movement of the first hinge axis 41 and the second hinge axis 42 relative to these reference points.

[0083] In addition, in this embodiment, the central axis of the first hinge axis 41 is denoted as the positioning central axis P, and the central axis of the second hinge axis 42 is denoted as the guide central axis Q. Figures 6-12 As 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.

[0084] 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 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 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.

[0088] 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.

[0089] 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.

[0090] 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:

[0091] 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.

[0092] like Figure 8 As shown, when the door rotates open to A1, 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;

[0093] like Figure 9 As shown, when the door 30 is rotated open to A2, 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.

[0094] like Figure 10 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.

[0095] like Figure 11 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 .

[0096] 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, second guide point Q2, first guide point Q1, third guide point Q3, second guide endpoint Q e They are distributed sequentially along the second trajectory line K. In this embodiment, taking ∠Q0Q1P0=76° as an example, the following is a detailed explanation of the door 30's rotational opening process:

[0097] Specifically, such as Figure 8As 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.

[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 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.

[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. 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.

[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. 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.

[0103] In this embodiment, the 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.

[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 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.

[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 15 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 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 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 point Q1 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 A2, and the central axis (positioning center axis P) of the first hinge axis 41 is located at the second positioning endpoint Pe of the first trajectory line S near the door side wall 32; that is, when the door rotates open to A2, 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 along the first trajectory groove 50 towards the door side wall 32 to the limit position. During the process of opening the door 30 from the closed state to A2, 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.

[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 withdrawn from the second positioning endpoint Pe and moves 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 second guide point Q2 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.

[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] 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 .

[0130] 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:

[0131] 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.

[0132] like Figure 23As shown, during the process of the door 30 rotating open from A1 to 90°, the central axis (positioning center axis P) of the first hinge axis 41 is withdrawn from the second positioning endpoint Pe and moves 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 second guide point Q2 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.

[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). 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).

[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 30 is in the 90° open state, the front wall 31 or side edge 33 of the door 30 has a gap θ with the first body side wall (reference plane M) of the cabinet 10. That is, the front wall 31 of the door 30 is located inside the reference plane M and the distance from the front wall 31 to the reference plane M is θ > 0, so that the door 30 can continue to open at a small angle without interfering with the cabinet 100.

[0140] As another feasible approach, by shortening the length of the second track groove 60, the third guide point Q3 of the second track line K can be used as the second guide endpoint Q of the second track line K. e The maximum opening angle A of the refrigerator can be limited. max =90°. Its specific movement process is the same as A in each embodiment. max The process of the refrigerator going from closed to open to 90° in the >90° setting is the same, so it will not be described again here.

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

[0142] Example 4

[0143] In the embodiments of this application, the door 30 rotates around a changing point during the opening process, and the changing point is traceable, with its trajectory being (X=(X1+X2) / 2, Y=(Y1+Y2) / 2);

[0144] Where: X represents the distance from the point of change to the side wall 32 of the door, and Y represents the distance from the point of change to the front wall 31 of the door.

[0145] X1 represents the distance from the center point of the first hinge axis 41 in the first track groove 50 to the door side wall 32 of the door body 30 when the door body 30 is rotated open; X2 represents the distance from the center point of the second hinge axis 42 in the second track groove 60 to the door side wall 32 of the door body 30 when the door body 30 is rotated open.

[0146] Y1 represents the distance from the center point of the first hinge axis 41 in the first track groove 50 to the front wall 31 of the door body 30 when the door body 30 is rotated open; Y2 represents the distance from the center point of the second hinge axis 42 in the second track groove 60 to the front wall 31 of the door body 30 when the door body 30 is rotated open.

[0147] Specific reference Figures 26-30 Similar to Embodiment 1, the center trajectory line of the first track groove 50 is denoted as the first trajectory line S, and the center trajectory line of the second track groove 60 is denoted as the second trajectory line K; the center axis of the first hinge shaft 41 is denoted as the positioning center axis P, and the center axis of the second hinge shaft 42 is denoted as the guide center axis Q, corresponding to... Figures 26-30 In the plane projection of the top wall of box 10, point P represents the positioning center axis P, and point Q represents the guide center axis Q.

[0148] When door 30 is in the closed state, see Figure 26 The central axis (positioning center 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 center axis Q) of the second hinge axis 42 is located at the first guide endpoint Q0 of the second trajectory line K. At this time, the distance between the positioning center axis P and the side wall 32 of the door body 30 is a, the distance between the positioning center axis P and the front wall 31 of the door body 30 is b, and the distance between the positioning center axis P and the guide center axis Q is L (which is a constant value and does not change when the door body 30 is opened); the angle formed by the line connecting the positioning center axis P and the guide center axis Q and the front wall 31 of the door body is n; the angle formed by the extension of the first trajectory line S of the positioning center axis P's movement trajectory and the front wall 31 of the door body 30 is γ. The first trajectory groove is perpendicular to the second trajectory groove, that is, the first trajectory line S is perpendicular to the second trajectory line K.

[0149] See Figure 26 ① When the door is closed at 30°, i.e., m=0°:

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

[0151] Guide center axis Q: X2=a+L*COSn; Y2=bL*SINn.

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

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

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

[0155] The distance from the positioning center axis P to the second trajectory line K is: L*COS(γ+nm).

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

[0157] K1=L*COS(γ+nm)- L*COS(γ+n),

[0158] The distance that the guide center axis Q moves along the second trajectory line K is:

[0159] K2=L*SIN(γ+n)-L*SIN(γ+nm).

[0160] Positioning center axis P:

[0161] X1=a-COSγ*K1; Y1=b-SINγ*K1;

[0162] Guide center axis Q:

[0163] X2=a+L*COSn-SINγ*K2; Y2=bL*SINn+COSγ*K2.

[0164] See Figure 28 When m = γ + n, the guide center axis Q is located on the extension of the first trajectory line S, and the distance from the positioning center axis P to the second trajectory line K is L.

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

[0166] If ∠Q0Q1P0 is set as an acute angle in Example 1, then the length of K1 is less than the length of the first trajectory line S.

[0167] If ∠Q0Q1P0 is set as an obtuse angle in Example 2, then the length of K1 is greater than the length of the first trajectory line S.

[0168] If, in Example 3, the first trajectory line S is set to be perpendicular to the second trajectory line K, then K1 is equal to the length of the first trajectory line S.

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

[0170] See Figure 29 ③ When the rotation angle of the door is m, and γ+n≤m≤2(γ+n):

[0171] The distance between the positioning center axis P and the second trajectory line K is: L*COS(m-γ-n);

[0172] The distance that the positioning center axis P moves along the first trajectory line S is:

[0173] K1=L*COS(m-γ-n)- L*COS(γ+n);

[0174] The distance that the guide center axis Q moves along the second trajectory line K is:

[0175] K2=L*SIN(γ+n)+L*SIN(m-γ-n).

[0176] Positioning center axis P:

[0177] X1=a-COSγ*K1; Y1=b-SINγ*K1;

[0178] Guide center axis Q:

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

[0180] 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).

[0181] 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.

[0182] 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.

[0183] 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).

[0184] Door 30 opens from a first angle (less than 90°) to a maximum angle A. max During the process, the first hinge axis 41 moves in a straight line away from the door side wall, and the second hinge axis 42 moves in a straight line towards the door side wall.

[0185] In embodiments one to four of this application, the door 30 is opened from the closed state to the maximum angle A. max Throughout the process of >90°, the positions of the first hinge shaft 41 within the first track groove 50 and the second hinge shaft 42 within the second track groove 60 constantly change, without any sudden changes in force, resulting in smoother motion. Moreover, the dual-axis motion of this application does not involve sudden changes in motion state and does not produce acceleration changes, therefore the first track groove 50 and the second track groove 60 are less prone to wear.

[0186] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A refrigerator characterized by comprising: It includes: The box body defines a heat-insulated storage room; the box body includes oppositely arranged first and second body side walls; A hinge is arranged 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; The door body has a door front wall away from the box body when the door body is closed, a door side wall close to the hinge and connected with the door front wall; First and second track grooves are linear and arranged on the 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 door body is opened from a first angle to A max In the process that the door body is opened from a first angle to A, the first hinge shaft moves away from the door side wall along a straight line relative to the first track groove, and the second hinge shaft moves toward the door side wall along a straight line relative to the second track groove; wherein the first angle is less than or equal to 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, so that the door body can be rotated and moved a distance towards the second body side 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 from A1 to A2, the center axis of the first hinge shaft moves from the second positioning point Pe to the first positioning point P1 along the first track line S away from the door side wall; the center axis of the second hinge shaft moves from the second guide point Q2 to the first guide point Q1 along the second track line K towards the door side wall; the door body is rotated to A2, and the center axes of the first and second hinge shafts are both on the straight line where the first track line S is located; 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 the 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 to A1, the center axis of the first hinge shaft is located at the first positioning point P1 of the first track line S, and the center axis of the second hinge shaft is located at the first guide point Q1 of the second track line K; at this time, the center axes of the first and second hinge shafts 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 center 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 towards the door side wall; the center 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 towards the door side wall; 0° < A1 < A2 < 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 the 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; 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 the 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; and 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 the first positioning point P0 of the first track line S, and the center axis of the second hinge shaft is located at the first guide point Q0 of the second track line K.

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