Method for determining rotation axis of refrigerator door and refrigerator

Abstract

The present invention provides a method for determining the rotation axis of a refrigerator door and a refrigerator, wherein the refrigerator includes a cabinet and a door rotatably connected to the cabinet by a hinge; the determination method includes the following steps: fitting a first trajectory line, and when the rotation axis of the door body is located on the first trajectory line, during the rotation of the door body, the rear wall of the door body is located at one end of the pivoting side and is tangent to the cabinet; determining that a target area is located on a side of the first trajectory close to the pivoting side, and during the rotation of the door body, determining that the rotation axis of the door body is located within the target area or on the boundary line of the target area; thereby, debugging can be performed within the determined target area, and it can be ensured that the door body will not interfere with the cabinet in any way during debugging.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration equipment, and in particular to a method for determining a rotation axis of a refrigerator door and the refrigerator. Background Art

[0002] With the development of society and the gradual improvement of living standards, people's demand for aesthetically pleasing refrigerators has become increasingly prominent. Embedding refrigerators into cabinets, or built-in refrigerators, to achieve a unified home decoration style has become popular.

[0003] When the door body of an existing built-in refrigerator rotates at an inappropriate axis, it can only be adjusted by technicians based on their own experience. During the adjustment, the adjustment time is long because of the need to constantly try various positions, and it is very likely that the optimal position cannot be adjusted.

[0004] In view of this, it is necessary to provide a new method for determining the rotation axis of a refrigerator door and a refrigerator to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a method for determining the rotation axis of a refrigerator door and a refrigerator.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical solution: a method for determining the rotation axis of a refrigerator door, wherein the refrigerator includes a cabinet and a door rotatably connected to the cabinet via a hinge; the determination method comprises the following steps:

[0007] Fitting a first trajectory line, when the door body rotation axis is located on the first trajectory line, during the door body rotation process, an end of the rear wall of the door body located on the pivot side is tangent to the box body;

[0008] The target area is determined to be located on a side of the first trajectory line close to the pivot side, and during the door body rotation process, the door body rotation axis is determined to be located within the target area or on a boundary line of the target area.

[0009] As a further improved technical solution of the present invention, when the door body is in a closed state, the target area is located on the hinge installation side of the door body.

[0010] As a further improved technical solution of the present invention, “fitting a first trajectory line” specifically includes the following steps:

[0011] An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0012] According to the formula y=T-(x 2 -B 2 ) / 2B to draw the first trajectory line in the XY coordinate system, wherein B represents the second gap between the door body and the box body when the door body is in a closed state, and T represents the thickness value of the door body.

[0013] As a further improved technical solution of the present invention, the formula y=T-(x 2 -B 2 ) / 2B, the range of x is: 0≤x≤L, where L represents the width of the door body.

[0014] As a further improved technical solution of the present invention, the refrigerator is embedded in a cabinet, and the determination method further includes the following steps:

[0015] Obtaining a preset maximum door opening angle of the door body;

[0016] Fitting a second trajectory line, wherein when the door body rotation axis is located on the second trajectory line, the actual maximum door opening angle of the door body is equal to the preset maximum door opening angle;

[0017] The target area is determined to be located on a side of the second trajectory away from the pivoting side.

[0018] As a further improved technical solution of the present invention, “fitting a second trajectory line” specifically includes the following steps:

[0019] An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0020] The second trajectory line is drawn in the XY coordinate system according to the formula x=y*tanV / 2-A, wherein V represents the preset maximum door opening angle, and A represents the first gap between the pivoting side of the door body and the cabinet when the door body is in a closed state.

[0021] As a further improved technical solution of the present invention, the range of y in the formula x=y*tanV / 2-A is -T / 2≤y≤T, wherein T represents the thickness value of the door body.

[0022] As a further improved technical solution of the present invention, the refrigerator is embedded in a cabinet, and the determination method further includes the following steps:

[0023] An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0024] A third trajectory line is drawn in the XY coordinate system according to the formula x=y; when the door body rotation axis is located on the third trajectory line, the third gap between the front wall of the door body and the cabinet when the door body is rotated to 90° is equal to the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state;

[0025] It is determined that the target area is located on a side of the third trajectory line close to the pivoting side.

[0026] As a further improved technical solution of the present invention, the refrigerator is embedded in a cabinet, and the determination method further includes the following steps:

[0027] An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0028] A fourth trajectory line is drawn in the XY coordinate system according to the formula x=-y+A; when the rotation axis of the door body is located on the fourth trajectory line, the gap between the door body and the cabinet is 0 when the door body rotates to 90°;

[0029] The target area is determined to be located on a side of the fourth trajectory away from the pivoting side.

[0030] In order to achieve the above-mentioned purpose of the invention, the present invention also provides a refrigerator, comprising a cabinet and a door body rotatably connected to the cabinet by a hinge, wherein during the process of opening and closing the door body, the door body rotates around the door body rotation axis; the door body rotation axis is located in the target area or on the boundary line of the target area, and the target area is located on the side of the first trajectory line close to the pivot side; when the door body rotation axis is located on the first trajectory line, during the rotation of the door body, the rear wall of the door body is located at one end of the pivot side and is tangent to the cabinet.

[0031] As a further improved technical solution of the present invention, when the door body is in a closed state, the target area is located on the hinge installation side of the door body.

[0032] As a further improved technical solution of the present invention, the first trajectory line is calculated according to the formula y=T-(x 2 -B 2) / 2B is a curve drawn in an XY coordinate system with a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X-axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein B represents the second gap between the door body and the box body when the door body is in a closed state, and T represents the thickness value of the door body.

[0033] As a further improved technical solution of the present invention, the refrigerator is embedded in the cabinet, and the target area is also located on the side of the second trajectory line away from the pivot side. When the rotation axis of the door body is located on the second trajectory line, the actual maximum door opening angle of the door body is equal to the preset maximum door opening angle.

[0034] As a further improved technical solution of the present invention, the second trajectory line is a straight line drawn in an XY coordinate system constructed according to the formula x=y*tanV / 2-A, with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein V represents the preset maximum door opening angle, and A represents the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

[0035] As a further improved technical solution of the present invention, the refrigerator is embedded in the cabinet, and the target area is also located on the side of the third trajectory line close to the pivot side. The third trajectory line is a straight line drawn in an XY coordinate system constructed according to the formula x=y with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin; when the rotation axis of the door body is located on the third trajectory line, when the door body is rotated to 90°, the third gap between the front wall of the door body and the cabinet is equal to the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

[0036] As a further improved technical solution of the present invention, the refrigerator is embedded in the cabinet, and the target area is also located on the side of the fourth trajectory line away from the pivot side; when the rotation axis of the door body is located on the fourth trajectory line, after the door body rotates to 90°, the gap between the door body and the cabinet is 0.

[0037] As a further improved technical solution of the present invention, the fourth trajectory line is a curve drawn in an XY coordinate system constructed according to the formula x=-y+A, with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein A represents the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

[0038] As a further improved technical solution of the present invention, the door body rotation axis is a physical axis or a virtual axis.

[0039] As a further improved technical solution of the present invention, the front wall of the door body is higher than the hinge, and the hinge has an avoidance portion on one side of the pivoting side.

[0040] As a further improved technical solution of the present invention, the door body is a glass door body.

[0041] The present invention has the following beneficial effects: the method for determining the position of the door body's rotation axis can determine the target area for the door body's rotation axis, thereby allowing debugging to be performed within the determined target area, ensuring that no matter how the door body is debugged, it will not interfere with the cabinet. Compared to the prior art method of manually determining the appropriate door body rotation axis through continuous debugging based on experience, the present invention can determine the debugging area and debugging direction as needed, thereby avoiding the phenomenon of repeated interference with the cabinet during the debugging process, which increases debugging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a partial schematic perspective view of a refrigerator according to an embodiment of the present invention.

[0043] Figure 2 yes Figure 1 A schematic top view of a refrigerator is shown (hinges removed).

[0044] Figure 3 A schematic diagram of the trajectory of the first trajectory line on the hinge installation side in the method for determining the door body rotation axis in the present invention is shown, wherein a circle having its center on the first trajectory line and passing through point N is shown;

[0045] Figure 4 A circle with the door body rotation axis as its center and passing through point D is shown;

[0046] Figure 5 A schematic diagram showing the trajectory of the second trajectory line on the hinge installation side in the method for determining the door body rotation axis in the present invention is shown;

[0047] Figure 6A schematic structural diagram of the refrigerator door of the present invention when it is rotated 90 degrees is shown;

[0048] Figure 7 A schematic diagram showing the trajectory of the third trajectory line on the hinge installation side in the method for determining the door body rotation axis in the present invention;

[0049] Figure 8 A schematic diagram showing the trajectory of the fourth trajectory line on the hinge installation side in the method for determining the door body rotation axis in the present invention;

[0050] Figure 9 A schematic diagram showing the trajectory of the fifth trajectory line on the hinge installation side in the method for determining the door body rotation axis in the present invention is shown;

[0051] Figure 10 shows a schematic structural diagram of a refrigerator according to a second embodiment of the present invention;

[0052] Figure 11 for Figure 10 Schematic partial diagram of the refrigerator in. DETAILED DESCRIPTION

[0053] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. Figures 1-11 Detailed description of the preferred embodiments of the present invention is provided below. Throughout the description, identical or similar reference numerals denote identical or similar elements or elements having identical or similar functions. It should be noted, however, that these embodiments are not intended to limit the present invention. Any equivalent functional, methodological, or structural modifications or substitutions made by persons skilled in the art based on these embodiments fall within the scope of protection of the present invention.

[0054] In the description of the present invention, the terms "upper", "lower", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention. For example, in the following description, Figure 2 The lower side is the front and the upper side is the back.

[0055] Figure 1 A partial schematic perspective view of a refrigerator according to one embodiment of the present invention is shown. Figure 2 The schematic top view of a refrigerator according to one embodiment of the present invention (without hinges) is shown, wherein only one side of the cabinet 4 is shown. In actual installation, the refrigerator is completely embedded in the cabinet 4. It is understandable that the refrigerator does not have to be embedded in the cabinet 4, but can also be embedded in the wall. Figure 1 and Figure 2As shown, this refrigerator has the same structure as refrigerators in the prior art and generally includes a cabinet 1 and a door 2 rotatably connected to the cabinet 1 via a hinge 3. The door 2 includes a front wall 22, a hinge mounting side 23, and a pivot side 21. The front wall 22 of the door 2 is the side facing the external environment when the refrigerator is embedded in the cabinet 4. The hinge mounting side 23 of the door 2 is the upper side of the door 2, that is, one end of the hinge 3 is mounted on the hinge mounting side 23, and the other end of the hinge 3 is mounted on the upper side of the refrigerator cabinet 1. The pivot side 21 of the door 2 is the side of the door 2 that rotates around the cabinet 1.

[0056] The present invention provides a method for determining the rotation axis of a refrigerator door, comprising the following steps:

[0057] Fitting a first trajectory line, when the door body rotation axis is located on the first trajectory line, during the door body rotation process, an end of the rear wall of the door body located on the pivot side is tangent to the box body;

[0058] The target area is determined to be located on a side of the first trajectory line close to the pivot side, and during the door body rotation process, the door body rotation axis is determined to be located within the target area or on a boundary line of the target area.

[0059] It can be understood that, in an embodiment in which only the first trajectory line is present, the aforementioned boundary line refers to the first trajectory line.

[0060] It should be noted that the above-mentioned door body rotation axis being located within the target area or on the boundary line of the target area can be understood as that during the rotation of the door body 2, the door body rotation axis is always located at a point within the target area or always located at a point on the boundary line of the target area; it can also be understood as that during the rotation of the door body 2, the door body rotation axis moves within the target area and / or on the boundary line of the target area.

[0061] When the door body rotation axis is within the target area defined by the first trajectory, during the rotation of the door body 2, a gap exists between the end of the rear wall of the door body 2 located on the pivoting side 21 and the housing 1, thereby preventing the door body 2 from colliding with the housing 1 or otherwise interfering with the housing 1. Compared to the prior art method of manually determining the appropriate door body rotation axis through continuous debugging based on experience, the present invention allows debugging to be performed within a determined target area, ensuring that no matter how the debugging is performed, there will be no interference with the housing 1, thereby avoiding repeated interference with the housing 1 during the debugging process, which increases debugging time.

[0062] Specifically, the door body rotation axis can be a physical axis or a virtual axis. For example, when the hinge 3 is a uniaxial hinge, the door body rotation axis is the axis of the rotating shaft in the uniaxial hinge, that is, the physical axis. When the hinge 3 is a multi-axis hinge, the door body rotation axis is the virtual axis defined by the multiple axes in the multi-axis hinge.

[0063] Furthermore, the above-mentioned “fitting the first trajectory line” specifically includes the following steps:

[0064] like Figure 3 As shown, an XY coordinate system is constructed with a first intersection line of the front wall 22 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the X axis, a second intersection line of the pivot side 21 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the Y axis, and an intersection point of the X axis and the Y axis as the origin O;

[0065] According to the formula y=T-(x 2 -B 2 ) / 2B draws the first trajectory line in the XY coordinate system, where Figure 2 As shown, B represents the second gap between the door body and the box body when the door body is in a closed state, and T represents the thickness value of the door body.

[0066] Furthermore, the formula y=T-(x 2 -B 2 ) / 2B, the range of x is 0≤x≤L, where L represents the width of the door. This ensures that the determined target area is within the width of the door when closed. Of course, this is not limiting. When the door's rotation axis is located on the hinge mounting side 23 when closed, the range of x can be adaptively narrowed to facilitate hinge axis placement.

[0067] Specifically, if Figure 2 As shown, the hinge mounting side 23 of the door body 2 includes four sides, namely the front side, the rear side, the left side and the right side, wherein the front side is the side where the X-axis is located, the right side is the side where the Y-axis is located, the intersection of the front side and the right side is the origin O, and the intersection of the rear side and the right side is defined as point N.

[0068] It can be understood that the point N is located at one end of the rear wall of the door body 2 on the pivot side 21 .

[0069] Wherein, the formula y=T-(x 2 -B 2 ) / 2B is obtained by setting the coordinates of the door body rotation axis in the XY coordinate system to (x, y), where x represents the horizontal coordinate of the door body rotation axis and y represents the vertical coordinate of the door body rotation axis. Figure 3As shown, assuming that the distance from the door body rotation axis to point N is R2, and the distance from the axis to the back is C, then during the rotation of door body 2, point N moves on a circle with a radius of R2 around the axis (x, y). In order to avoid interference between door body 2 and box body 1, it is necessary to ensure that point N does not interfere with box body 1. Therefore, the following conditions need to be met: R2-C≤B, y=TC and x 2 +C 2 =R2 2 , take R2-C=B, then after conversion we can get: From this we can get: x 2 +C 2 =(C+B) 2 , decomposition formula can be obtained: C=(x 2 -B 2 ) / 2B, and substitute it into y=TC to get the formula y=T-(x 2 -B 2 ) / 2B.

[0070] It can be understood that when R2-C=B, during the rotation of the door body 2, point N on the door body 2 is tangent to the box body 1.

[0071] Assuming that the thickness T of the door body 2 and the second gap B are fixed values, then according to the formula y=T-(x 2 -B 2 ) / 2B and the range of x 0≤x≤L can be plotted Figure 3 The first trajectory F shown. If the center of the circle is each point on the first trajectory F, and the distance from the point on the first trajectory F to point N is used as the radius, then the circle passing through point N will be tangent to the housing 1. That is, when the door body rotation axis is on the first trajectory F, point N on the door body 2 is tangent to the housing 1 during rotation. However, if the center of the circle is at a point on the side of the first trajectory F close to the pivot side 21, the circle passing through point N will have a gap with the housing 1. That is, when the door body rotation axis is on the side of the first trajectory F close to the pivot side 21, there will be a gap between point N and the housing 1 during rotation. If the center of the circle is at a point on the side of the first trajectory F away from the pivot side 21, the circle passing through point N will overlap with the housing 1. That is, when the door body rotation axis is on the side of the first trajectory F away from the pivot side 21, there will be interference between point N and the housing 1 during rotation. Therefore, the side of the first trajectory line F close to the pivot side is determined to be the target area. When the door body rotation axis is within the target area or on the boundary line of the target area, there is no interference between the door body 2 and the box body 1 during rotation.

[0072] Furthermore, when the refrigerator is embedded in the cabinet 4, that is, when the refrigerator is a built-in refrigerator, the determination method further includes the following steps:

[0073] Obtaining the preset maximum opening angle of the door body 2;

[0074] A second trajectory line is fitted, and when the door body rotation axis is located on the second trajectory line, the actual maximum door opening angle of the door body 2 is equal to the preset maximum door opening angle;

[0075] It is determined that the target area is located on a side of the second trajectory away from the pivoting side 21 .

[0076] It can be understood that, when the refrigerator is a built-in refrigerator, the actual maximum opening angle of the door body 2 refers to the angle at which the door body 2 is opened until the door body 2 interferes with the cabinet 4 .

[0077] When the door body rotation axis is located on the second trajectory, the actual maximum door opening angle of the door body 2 is equal to the preset maximum door opening angle; when the door body rotation axis is located on the side of the second trajectory away from the pivot side 21, the actual maximum door opening angle of the door body is greater than the preset maximum door opening angle; when the door body rotation axis is located on the side of the second trajectory closer to the pivot side 21, the actual maximum door opening angle of the door body is less than the preset maximum door opening angle. Thus, the target area is defined as being located on the side of the second trajectory away from the pivot side 21, so that the actual maximum door opening angle of the door body 2 is not less than the preset maximum door opening angle. In this case, the boundary line of the target area includes the first trajectory and the second trajectory.

[0078] When the door body rotation axis is located in the target area defined by the first trajectory line and the second trajectory line, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and at the same time, the actual maximum door opening angle of the door body 2 is greater than the preset maximum door opening angle. When the door body rotation axis is located on the first trajectory line F as the boundary line of the target area, the rear wall of the door body 2 located at one end of the pivot side 21 is tangent to the box body 1, and at the same time, the actual maximum door opening angle of the door body 2 is greater than the preset maximum door opening angle. When the door body rotation axis is located on the second trajectory line as the boundary line of the target area, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and at the same time, the actual maximum door opening angle of the door body 2 is equal to the preset maximum door opening angle.

[0079] It is understood that a technician can determine the relationship between the actual maximum door opening angle of the door body 2 and the preset maximum door opening angle based on the positional relationship between the door body rotation axis and the second trajectory line. In this embodiment, the actual maximum door opening angle of the door body 2 is required to be no less than the maximum door opening angle. Therefore, the target area is defined as being located on the side of the second trajectory line away from the pivot side 21.

[0080] Furthermore, “fitting the second trajectory line” specifically includes the following steps:

[0081] An XY coordinate system is constructed by taking a first intersection line of the front wall 22 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the X axis, a second intersection line of the pivot side 21 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0082] The second trajectory line is drawn in the XY coordinate system according to the formula x=y*tanV / 2-A, wherein V represents the preset maximum door opening angle, and A represents the first gap between the pivoting side of the door body and the cabinet when the door body is in a closed state.

[0083] Furthermore, in the formula x=y*tanV / 2-A, the range of y is 0≤y≤T, where T represents the thickness of the door body. This allows the door body rotation axis to be located on the hinge mounting side 23. Of course, this is not limiting. In embodiments where the door body rotation axis is disposed outside the door body 2, the range of y can be adaptively expanded, such as -T / 2≤y≤T.

[0084] Preferably, in the formula x=y*tanV / 2-A, when A=3, 0≤y≤T / 4; when A=4, 0≤y≤3T / 10; when A=6, 0≤y≤2T / 5; when A=10, 0≤y≤T / 2; when A=18, 0≤y≤3T / 5.

[0085] Specifically, the formula x=y*tanV / 2-A is obtained by setting the coordinates of the door body rotation axis in the XY coordinate system to (x, y), where x represents the horizontal coordinate of the door body rotation axis and y represents the vertical coordinate of the door body rotation axis. Figure 4As shown, assuming that V is the preset maximum door opening angle, the cabinet 4 has a point D on the same horizontal line as the origin, and a circle is drawn with the door body rotation axis as the center point and the distance from the door body rotation axis to point D as the radius. The intersection of this circle and the front edge of the hinge installation side 23 of the door body 2 when it is in the closed state is point E. Then the angle between the line connecting the door body rotation axis and point D and the line connecting the door body rotation axis and point E is the angle V that the door body 2 has rotated. In addition, since the front wall 22 of the door body 2 in the closed state is flush with the front end of the cabinet 4, that is, point D and point E are on the same horizontal line, so a line perpendicular to the front wall 22 of the door body 2 from the center of the circle can bisect the angle V, that is, V=2W, and tanW=(x+A) / y. The decomposition formula can be obtained as x=y*tanV / 2-A.

[0086] Assuming that the thickness T of the door body 2 and the first gap A are fixed values, the following equation can be drawn based on the above-mentioned formula and the range of y 0≤y≤T: Figure 5 The second trajectory line G shown can be concluded to be a straight line. When the door body rotation axis is located on the second trajectory line G, the actual maximum door opening angle of the door body 2 is equal to V. When the door body is located on the side of the second trajectory line G away from the pivot side 21, the actual maximum door opening angle of the door body 2 is greater than V. When the door body is located on the side of the second trajectory line G close to the pivot side 21, the actual maximum door opening angle of the door body 2 is less than V.

[0087] Furthermore, the determination method further includes the following steps:

[0088] An XY coordinate system is constructed by taking a first intersection line of the front wall 22 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the X axis, a second intersection line of the pivot side 21 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0089] like Figure 7 As shown, a third trajectory line H is drawn in the XY coordinate system according to the formula x=y; when the door body rotation axis is located on the third trajectory line H, when the door body is rotated to 90°, the third gap between the front wall 22 of the door body 2 and the cabinet 4 is equal to the first gap between the pivot side 21 of the door body 2 and the cabinet 4 when the door body 2 is in the closed state;

[0090] It is determined that the target area is located on a side of the third trajectory line close to the pivoting side.

[0091] When the door body rotation axis is located on the third trajectory line H, the third gap between the front wall 22 of the door body 2 and the cabinet 4 when the door body is rotated to 90° is equal to the first gap between the pivot side 21 of the door body 2 and the cabinet 4 when the door body 2 is in the closed state, that is, the door body 2 will not move inward, thereby not affecting the user's taking and placing of items; when the door body rotation axis is located on the side of the third trajectory line H close to the pivot side 21, the third gap is smaller than the first gap when the door body 2 is rotated to 90°, that is, the door body 2 will move outward when it is rotated to 90°, which is convenient for users to take and place items; when the door body rotation axis is located on the side of the third trajectory line away from the pivot side 21, the third gap is greater than the first gap when the door body 2 is rotated to 90°, that is, the door body 2 will move inward when it is rotated to 90°. At this time, the door body 2 will block part of the storage space of the storage compartment, affecting the user's taking and placing of items. Therefore, in the present invention, the target area is determined to be located on the side of the third trajectory line H close to the pivot side 21, so that after the door body 2 rotates to 90 degrees, it will not block the storage space and will not affect the user's taking and placing of items.

[0092] Furthermore, the formula x=y is obtained by setting the coordinates of the door body rotation axis in the XY coordinate system to (x, y), where x represents the horizontal coordinate of the door body rotation axis and y represents the vertical coordinate of the door body rotation axis. Assume that x≠y. It can be understood that if Figure 2 As shown, when the door body 2 is in the closed state, the gap between the door body 2 and the cabinet 4 is a first gap A, as shown in FIG. Figure 6 As shown, when the door body 2 rotates 90 degrees, the gap between the door body 2 and the cabinet 4 becomes the third gap A+a. If the gap between the door body 2 and the cabinet 4 needs to remain unchanged after the door body 2 rotates, a=0, that is, x=y.

[0093] Therefore, if it is necessary to make the third gap between the front wall 22 of the door body 2 and the cabinet 4 equal to the first gap when the door body 2 is rotated to 90°, it is necessary to find the axis of rotation of the door body 2 on the third trajectory line H or to move the axis on the third trajectory line H.

[0094] According to the solution of the embodiment of the present invention, the third trajectory line H of the axis on the hinge installation side 23 can be determined according to the formula x=y. By selecting the axis on the third trajectory line H or moving on the third trajectory line H, it can be ensured that the gap between the door body 2 and the cabinet 4 remains unchanged when the door body 2 is rotated to 90°.

[0095] At Figure 7 In a specific embodiment shown in FIG, the third track line H, the first track line F, and the second track line G together define the target area. Figure 7As shown, the boundary line of the target area includes a second track line G and a third track line H.

[0096] like Figure 7 As shown, when the door body rotation axis is located in the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and the actual maximum door opening angle of the door body 2 is greater than the preset maximum door opening angle. The door body 2 moves outward when it rotates to 90°.

[0097] like Figure 7 As shown, when the rotation axis of the door body is located on the second trajectory line G which is the boundary line of the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and the actual maximum door opening angle of the door body 2 is equal to the preset maximum door opening angle. The door body 2 moves outward when it rotates to 90°.

[0098] like Figure 7 As shown, when the rotation axis of the door body is located on the third trajectory line H which is the boundary line of the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and the actual maximum door opening angle of the door body 2 is greater than the preset maximum door opening angle. When the door body 2 rotates to 90°, the first gap is equal to the third gap, that is, the distance between the door body 2 and the cabinet 4 remains unchanged.

[0099] Of course, this is not limiting. In other embodiments, the third trajectory line H may also define the target area together with the first trajectory line F. In this case, the boundary line of the target area includes the first trajectory line F and the third trajectory line H. During the rotation of the door body 2, it is determined that the door body rotation axis is located within the target area or on the corresponding boundary line. During the rotation of the door body 2, there is no interference between the door body 2 and the housing 1, and the door body 2 does not move inward when rotated to 90°.

[0100] Furthermore, the location determination method further includes the following steps:

[0101] An XY coordinate system is constructed by taking a first intersection line of the front wall 22 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the X axis, a second intersection line of the pivot side 21 of the door body 2 in a closed state and the hinge installation side 23 of the door body 2 as the Y axis, and taking the intersection of the X axis and the Y axis as the origin;

[0102] like Figure 8As shown, a fourth trajectory line L is drawn in the XY coordinate system according to the formula x=-y+A; when the door body rotation axis is located on the fourth trajectory line L in the target area, the gap between the front wall 22 of the door body 2 and the cabinet 4 is 0 when the door body rotates to 90°;

[0103] It is determined that the target area is located on a side of the fourth trajectory away from the pivoting side 21 .

[0104] When the door body rotation axis is located on the side of the fourth trajectory L close to the pivot side 21, the door body 2 protrudes from the cabinet 4 when rotated to 90°, that is, it interferes with the cabinet 4. When the door body rotation axis is located on the side of the fourth trajectory L away from the pivot side 21, there is a gap between the front wall 22 of the door body 2 and the cabinet 4 when the door body is rotated to 90°. Therefore, the target area is further defined as being located on the side of the fourth trajectory away from the pivot side 21 to ensure normal operation of the built-in refrigerator.

[0105] Furthermore, the formula x=-y+A is obtained by setting the coordinates of the door body rotation axis in the XY coordinate system to (x, y), where x represents the horizontal coordinate of the door body rotation axis and y represents the vertical coordinate of the door body rotation axis. Assume that x≠y. It can be understood that if Figure 2 As shown, when the door body 2 is in the closed state, the gap between the door body 2 and the cabinet 4 is a first gap A, as shown in FIG. Figure 6 As shown, when the door body 2 rotates 90 degrees, the gap between the door body 2 and the cabinet 4 becomes the third gap A+a. If it is required that there is no gap between the door body 2 and the cabinet 4 after the door body 2 rotates, a=-A, that is, x=-y+A.

[0106] Therefore, if the gap between the front wall 22 of the door body 2 and the cabinet 4 needs to be between 0 and the first gap when the door body 2 is rotated to 90°, it is necessary to find the axis of rotation of the door body 2 within the target area formed by the first trajectory line F, the third trajectory line H and the fourth trajectory line L, or the axis needs to be moved within the target area.

[0107] It can be understood that the target area defined by the second trajectory line G is located within the target area defined by the fourth trajectory line L and is smaller than the target area defined by the fourth trajectory line L. Therefore, the fourth trajectory line L is suitable for jointly defining the target area with the first trajectory line F, or jointly defining the target area with the first trajectory line F and the third trajectory line H.

[0108] At Figure 8In a specific embodiment shown in FIG, the fourth track line L, the first track line F, and the third track line H define the target area together. Figure 8 As shown, the boundary lines of the target area include a first track line F, a third track line H, and a fourth track line L.

[0109] like Figure 8 As shown, when the door body rotation axis is located in the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and when the door body 2 rotates to 90°, it moves outward and there is a gap between it and the cabinet 4.

[0110] like Figure 8 As shown, when the rotation axis of the door body is located on the first trajectory line F which is the boundary line of the target area, during the rotation of the door body 2, the rear wall of the door body 2 is located at one end of the pivot side 21 and is tangent to the box body 1. When the door body 2 rotates to 90°, it moves outward and there is a gap between it and the cabinet 4.

[0111] like Figure 8 As shown, when the rotation axis of the door body is located on the third trajectory line H which is the boundary line of the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1, and when the door body 2 is rotated to 90°, the distance between it and the cabinet 4 remains unchanged and there is a gap between it and the cabinet 4.

[0112] like Figure 8 As shown, when the rotation axis of the door body is located on the fourth trajectory line L which is the boundary line of the target area, during the rotation of the door body 2, there is a gap between the rear wall of the door body 2 located at one end of the pivot side 21 and the box body 1. When the door body 2 rotates to 90°, it moves outward and the gap between it and the cabinet 4 is 0.

[0113] Of course, this is not limited to the above. In other embodiments, the fourth track line L and the first track line F may also define the target area together. In this case, the boundary line of the target area includes the first track line F and the fourth track line L.

[0114] Furthermore, the determination method further includes the following steps:

[0115] A fifth trajectory line is fitted. When the door body rotation axis is located on the fifth trajectory line, during the rotation of the door body 2, one end of the front wall 22 of the door body located on the pivoting side 21 is tangent to the cabinet 4.

[0116] It is determined that the target area is located on a side of the fifth trajectory away from the box 1 .

[0117] When the door body rotation axis is located on the fifth trajectory, during the rotation of the door body 2, the end of the door body's front wall 22 on the pivot side 21 is tangent to the cabinet 4. When the door body rotation axis is located on the side of the fifth trajectory away from the housing 1, there is a gap between the end of the door body's front wall 22 on the pivot side 21 and the cabinet 4. When the door body rotation axis is located on the side of the fifth trajectory close to the housing 1, the end of the door body's front wall 22 on the pivot side 21 collides with the cabinet 4. Therefore, the target area is further defined as being located on the side of the fifth trajectory away from the housing 1 to ensure that there is no interference between the door body 2 and the cabinet during the rotation of the door body 2.

[0118] During the rotation of the door body in the present invention, the door body rotation axis is always located within the target area, thereby ensuring that the door body rotation axis is positioned so that the door body 2 does not interfere with the cabinet 4 and the box body 1 during rotation. Compared to the prior art method of manually determining the appropriate door body rotation axis through continuous debugging based on experience, the present invention can perform debugging within a determined target area, ensuring that no matter how the debugging is performed, it will not interfere with the cabinet 4 and the box body 1, thereby avoiding the phenomenon of repeated interference with the cabinet 4 and / or the box body 1 during the debugging process, thereby increasing the debugging time.

[0119] Furthermore, the above-mentioned “fitting the fifth trajectory line” specifically includes the following steps:

[0120] An XY coordinate system is constructed with a first intersection line of the front wall 22 of the door body 2 in the closed state and the hinge installation side 23 of the door body 2 as the X axis, a second intersection line of the pivot side 21 of the door body 2 in the closed state and the hinge installation side 23 of the door body 2 as the Y axis, and an intersection point of the X axis and the Y axis as the origin;

[0121] According to the formula x=(y 2 -A 2 ) / 2A draws the fifth trajectory line in the XY coordinate system, wherein, Figure 2 As shown in FIG, A represents a first gap between the pivoting side 21 of the door body 2 and the cabinet 4 when the door body 2 is in a closed state.

[0122] It can be understood that the above-mentioned origin is the front wall 22 of the door body 2 located at one end of the pivoting side 21 .

[0123] Furthermore, the formula x=(y 2 -A 2) / 2A, the range of y is: 0≤y≤T, where T represents the thickness of the door body. This ensures that the determined target area is within the thickness range of the door body when in the closed state. Of course, this is not limiting. In an embodiment where the door body rotation axis is disposed outside the door body, the range of y can be adaptively expanded, such as -T / 2≤y≤T; or the range of y can be set so that the target area is located on the hinge mounting side 23 of the door body 2 when in the closed state, to facilitate the setting of the hinge axis.

[0124] Preferably, the formula x=(y 2 -A 2 ) / 2A, when A=3, 0≤y≤T / 4; when A=4, 0≤y≤3T / 10; when A=6, 0≤y≤2T / 5; when A=10, 0≤y≤T / 2; when A=18, 0≤y≤3T / 5.

[0125] Wherein, the formula x=(y 2 -A 2 ) / 2A is obtained by setting the coordinates of the door body rotation axis in the XY coordinate system to (x, y), where x represents the horizontal coordinate of the door body rotation axis and y represents the vertical coordinate of the door body rotation axis. Assuming that the distance from the door body rotation axis to the origin is R1, when the door body 2 rotates, the origin moves on a circle with a radius of R1 around the axis (x, y). In order to avoid interference between the door body 2 and the cabinet 4, it is necessary to ensure that the origin does not interfere with the cabinet 4. Therefore, the following conditions need to be met: R1-x≤A and x 2 +y 2 =R1 2 , take R1-x=A, then after conversion we can get: x 2 +y 2 =(x+A) 2 , decomposing the formula we can get the above formula x=(y 2 -A 2 ) / 2A.

[0126] It can be understood that when R1 −x=A, during the rotation of the door body 2 , the front wall 22 of the door body at one end of the pivoting side 21 is tangent to the cabinet 4 .

[0127] Assuming that the thickness T of the door body 2 and the first gap A are fixed values, then according to the formula x=(y 2 -A 2 ) / 2A and the range of y 0≤y≤T can be plotted Figure 9The fifth trajectory E shown. If the center of the circle is each point on the first trajectory E, and the distance from the point on the fifth trajectory E to the origin is used as the radius, then the circle passing through the origin will be tangent to the cabinet 4. That is, when the door body rotation axis is located on the fifth trajectory E, during the rotation of the door body 2, the end of the front wall 22 of the door body 2 on the pivot side 21 is tangent to the cabinet 4. If the center of the circle is at a point on the side of the fifth trajectory E away from the housing 1, the circle passing through the origin will have a gap with the cabinet 4. That is, when the door body rotation axis is located on the side of the fifth trajectory E away from the housing 1, during the rotation of the door body 2, the end of the front wall 22 of the door body on the pivot side 21 is tangent to the cabinet 4 or has a gap, and will not interfere with the cabinet 4.

[0128] It can be understood that the target area defined by the fifth trajectory line E is located within the target area defined by the fourth trajectory line L and is smaller than the target area defined by the fourth trajectory line L. Therefore, in an embodiment with the fifth trajectory line E, the fourth trajectory line L may be ignored.

[0129] The fifth trajectory line E and the first trajectory line F may jointly define a target area. In this case, the boundary line includes the fifth trajectory line E and the first trajectory line F. When the door body rotation axis is within the target area or on the boundary line, during the rotation of the door body 2, it can be ensured that there is no interference between the door body 2 and the cabinet 4 or the box body 1.

[0130] The fifth trajectory line E may define a target area together with the first trajectory line F and the second trajectory line G. In this case, the boundary line includes the fifth trajectory line E, the first trajectory line F, and the second trajectory line G. When the door body rotation axis is located within the target area or on the boundary line, during the rotation of the door body 2, it can be ensured that there is no interference between the door body 2 and the cabinet 4 and the box body 1, and the actual maximum opening angle of the door body 2 is not less than the preset maximum opening angle.

[0131] The fifth trajectory line E can define a target area together with the first trajectory line F and the third trajectory line H. In this case, the boundary line includes the fifth trajectory line E and the third trajectory line H. When the door body rotation axis is located within the target area or on the boundary line, during the rotation of the door body 2, it can be ensured that there is no interference between the door body 2 and the cabinet 4 and the box body 1, and the door body 2 will not move inward when opened to 90°.

[0132] The fifth trajectory line E can define a target area together with the first trajectory line F, the second trajectory line G, and the third trajectory line H. In this case, the boundary line includes the second trajectory line G and the third trajectory line H. When the door body rotation axis is located within the target area or on the boundary line, during the rotation of the door body 2, it can be ensured that there is no interference between the door body 2 and the cabinet 4 and the box body 1, and the door body 2 will not move inward when opened to 90°. At the same time, the actual maximum opening angle of the door body 2 is not less than the preset maximum opening angle.

[0133] For further information, see Figure 1-Figure 2 As shown, the present invention also provides a built-in refrigerator embedded in the cabinet 4. The built-in refrigerator includes a cabinet 1 and a door 2 rotatably connected to the cabinet 1 via a hinge 3. When the door 2 is opened or closed, the door 2 rotates about its rotation axis. The door rotation axis is located within a target area or on a boundary of the target area. The target area is determined by the method for determining the position of the door rotation axis described above and will not be further described here.

[0134] Specifically, the door body rotation axis can be a physical axis or a virtual axis. For example, when the hinge 3 is a uniaxial hinge, the door body rotation axis is the axis of the rotating shaft in the uniaxial hinge, that is, the physical axis. When the hinge 3 is a multi-axis hinge, the door body rotation axis is the virtual axis defined by the multiple axes in the multi-axis hinge.

[0135] Below, taking the door rotation axis as a physical axis as an example, a method for determining the door rotation axis of a built-in refrigerator in an implementation method under several specific requirements is explained.

[0136] First embodiment:

[0137] like Figure 9 As shown, the line segment between the intersection point P1 of the third trajectory line H and the second trajectory line G and the origin is defined as the first line segment. After comprehensive consideration, it is finally determined that the door body rotation axis is a fixed point on the first line segment, or the door body rotation axis moves on the first line segment.

[0138] In a specific embodiment, A=4, V=120°, and the coordinates of point P1 can be obtained as (-5.46, 5.46). Taking into account the diameter strength requirements of the hinge shaft, the hinge shaft diameter is set to be greater than or equal to 6 mm. In addition, considering the installation of the hinge shaft on the door body 2, point P1 is finally selected as the rotation axis of the door body. During the rotation of the door body 2 around point P1, there is no interference with the cabinet 4 and the box body 1, and the maximum door opening angle is 120°. At the same time, the door body 2 will not move inward when opened to 90°.

[0139] Second embodiment:

[0140] The difference between this embodiment and the first embodiment is that: Figure 10 As shown, the hinge 3 includes an upper hinge assembly 33 and a lower hinge assembly 34. Each of the upper hinge assembly 33 and the lower hinge assembly 34 has a hinge seat 31 and a hinge shaft 32. The following description uses the upper hinge assembly 33 as an example. Those skilled in the art will appreciate that the lower hinge assembly 34 can be designed based on the same installation arrangement of the upper hinge assembly 33 on the door body 2 and the box body 1.

[0141] The front wall 22 of the door body 2 is higher than the hinge 3, so as to achieve the purpose of hiding the hinge 3, which is beneficial to the overall appearance of the built-in refrigerator.

[0142] Specifically, the top side of the door body 2 (i.e., the hinge installation side 23) is located higher than the top side of the box body 1, and the hinge installation side 23 of the top side of the door body 2 has a groove 231. The hinge base 31 of the upper hinge device 33 spans the top side of the box body 1 and the groove 231 of the door body 2, so as to hide the upper hinge device 33 at the rear side of the door body 2.

[0143] See also Figure 11 The groove 231 passes through the pivot side 21, the upper hinge installation side 23 and the rear side of the door body 2. That is to say, the groove 231 does not pass through the front side 22 of the door body 2. When the door body 2 is in a closed state, the groove 231 cannot be seen when observing the refrigerator from the front, and thus the upper hinge device 33 cannot be seen. The upper hinge device 33 is then hidden in the groove 231, ensuring the aesthetics of the door body 2.

[0144] The hinge seat 31 of the upper hinge device 33 can be configured as a rectangle, with one long side of the rectangle aligned with the top outer edge of the box body 1 and also aligned with the top outer edge of the door body 2 when the door body 2 is in the closed state. It can be understood that since the groove 231 of the door body 2 does not pass through the front wall 22 of the door body 2, the hinge seat 31 on the side of the pivot side 21 has the following shape: Figure 11 The avoidance portion 311 shown can avoid the front wall 22 of the door body 2 when the door body 2 is opened to a larger angle, so as to smoothly install the hinge seat 31 on the top side of the box body 1 and the door body 2.

[0145] Furthermore, in this embodiment, in order to avoid assembly interference between the upper hinge device 33 and the door body 2, compared with the first embodiment, the hinge shaft 32 needs to be closer to the box body 1. The hinge shaft 32 is set on the line connecting the intersection of the fifth trajectory line E and the third trajectory line H and the intersection point P1.

[0146] In a specific example, a door body rotation axis position point is determined on the connecting line, for example, the coordinates are (-9,9), and the door opening angle can reach 110.5°, that is, in the second embodiment of the present invention, according to the specific application scenario, the actual maximum door opening angle of the door body 2 is less than the preset maximum door opening angle.

[0147] In another specific example, to simultaneously ensure that the actual maximum door opening angle of the door body 2 is not less than the predetermined maximum door opening angle, the ordinate 9 in the aforementioned coordinates can be maintained unchanged, and the abscissa can be moved leftward to the second trajectory line or to the side of the second trajectory line away from the pivot side 21. For example, the coordinates of the door body rotation axis can be selected as (-11.59, 9).

[0148] Third embodiment:

[0149] The third embodiment of the present invention differs from the first embodiment in that the door body 2 is a glass door body, which is more scratch-resistant and has a variety of patterns and colors, and can be freely matched with furniture.

[0150] Because the front wall 22 of the glass door body is a glass panel with a certain thickness, and the door body plastic trim that fixes the glass door body also needs to have a certain wall thickness, a bonding gap of tape or hot melt adhesive needs to be set between the door body plastic trim and the glass panel. Therefore, for the glass door body, the hinge axis needs to be at a greater distance from the front wall 22 of the door body 2. At this time, the position of the door body rotation axis can be determined in the overlapping area of ​​the fifth track line E away from the box body 1, the first track line F toward the pivot side 21, the second track line G away from the pivot side 21, and the third track line H away from the pivot side 21, or on the second track line G in the overlapping area. For example, the coordinates of the door body rotation axis can be selected as (-15, 11).

[0151] In summary, the method for determining the position of the door body rotation axis according to the present invention can determine the target area for the door body rotation axis. Therefore, debugging can be performed within the determined target area, ensuring that no matter how the door body 2 is debugged, it will not interfere with the cabinet 1. Compared with the prior art method of manually determining the appropriate door body rotation axis through continuous debugging based on experience, the present invention can determine the debugging area and debugging direction as needed, thereby avoiding the phenomenon of repeated interference with the cabinet during the debugging process, thereby increasing debugging time.

[0152] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0153] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for determining the rotation axis of a refrigerator door, wherein the refrigerator comprises a refrigerator body and a door rotatably connected to the refrigerator body via a hinge; characterized in that: The determination method comprises the following steps: Fitting a first trajectory line, when the door body rotation axis is located on the first trajectory line, during the door body rotation process, an end of the rear wall of the door body located on the pivot side is tangent to the box body; The target area is determined to be located on a side of the first trajectory line close to the pivot side, and during the door body rotation process, the door body rotation axis is determined to be located within the target area or on a boundary line of the target area.

2. The method for determining the rotation axis of a refrigerator door according to claim 1, wherein: When the door body is in a closed state, the target area is located on the hinge installation side of the door body.

3. The method for determining the rotation axis of a refrigerator door according to claim 1, wherein: "Fitting the first trajectory line" specifically includes the following steps: An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin; According to the formula y=T-(x 2 -B 2 ) / 2B to draw the first trajectory line in the XY coordinate system, wherein B represents the second gap between the door body and the box body when the door body is in a closed state, and T represents the thickness value of the door body.

4. The method for determining the rotation axis of a refrigerator door according to claim 3, wherein: Formula y=T-(x 2 -B 2 ) / 2B, the range of x is: 0≤x≤L, where L represents the width of the door body.

5. The method for determining the rotation axis of a refrigerator door according to claim 1, wherein: The refrigerator is embedded in a cabinet, and the determination method further comprises the following steps: Obtaining a preset maximum door opening angle of the door body; Fitting a second trajectory line, wherein when the door body rotation axis is located on the second trajectory line, the actual maximum door opening angle of the door body is equal to the preset maximum door opening angle; The target area is determined to be located on a side of the second trajectory away from the pivoting side.

6. The method for determining the rotation axis of a refrigerator door according to claim 5, wherein: "Fitting the second trajectory line" specifically includes the following steps: An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin; The second trajectory line is drawn in the XY coordinate system according to the formula x=y*tanV / 2-A, wherein V represents the preset maximum door opening angle, and A represents the first gap between the pivoting side of the door body and the cabinet when the door body is in a closed state.

7. The method for determining the rotation axis of a refrigerator door according to claim 6, wherein: In the formula x=y*tanV / 2-A, the range of y is -T / 2≤y≤T, where T represents the thickness of the door body.

8. The method for determining the rotation axis of a refrigerator door according to claim 1 or 5, wherein: The refrigerator is embedded in a cabinet, and the determination method further comprises the following steps: An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin; A third trajectory line is drawn in the XY coordinate system according to the formula x=y; when the door body rotation axis is located on the third trajectory line, the third gap between the front wall of the door body and the cabinet when the door body is rotated to 90° is equal to the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state; It is determined that the target area is located on a side of the third trajectory line close to the pivoting side.

9. The method for determining the rotation axis of a refrigerator door according to claim 1, wherein: The refrigerator is embedded in a cabinet, and the determination method further comprises the following steps: An XY coordinate system is constructed by taking a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y axis, and taking the intersection of the X axis and the Y axis as the origin; A fourth trajectory line is drawn in the XY coordinate system according to the formula x=-y+A; when the rotation axis of the door body is located on the fourth trajectory line, the gap between the door body and the cabinet is 0 when the door body rotates to 90°; The target area is determined to be located on a side of the fourth trajectory away from the pivoting side.

10. A refrigerator comprising a cabinet and a door rotatably connected to the cabinet via a hinge, wherein the door rotates around its rotation axis during opening and closing; characterized in that: The door body rotation axis is located in the target area or on the boundary line of the target area, and the target area is located on the side of the first trajectory line close to the pivot side; when the door body rotation axis is located on the first trajectory line, during the rotation of the door body, the rear wall of the door body is located at one end of the pivot side and is tangent to the box body.

11. The refrigerator according to claim 10, wherein: When the door body is in a closed state, the target area is located on the hinge installation side of the door body.

12. The refrigerator according to claim 10, wherein: The first trajectory line is calculated according to the formula y=T-(x 2 -B 2 ) / 2B is a curve drawn in an XY coordinate system with a first intersection line of the front wall of the door body in a closed state and the hinge installation side of the door body as the X-axis, a second intersection line of the pivot side of the door body in a closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein B represents the second gap between the door body and the box body when the door body is in a closed state, and T represents the thickness value of the door body.

13. The refrigerator according to claim 10, wherein: The refrigerator is embedded in the cabinet, and the target area is located on the side of the second trajectory line away from the pivot side. When the rotation axis of the door body is located on the second trajectory line, the actual maximum opening angle of the door body is equal to the preset maximum opening angle.

14. The refrigerator according to claim 13, wherein: The second trajectory line is a straight line drawn in an XY coordinate system constructed according to the formula x=y*tanV / 2-A, with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein V represents the preset maximum door opening angle, and A represents the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

15. The refrigerator according to claim 10 or 13, wherein: The refrigerator is embedded in the cabinet, and the target area is also located on the side of the third trajectory line close to the pivot side. The third trajectory line is a straight line drawn in an XY coordinate system constructed according to the formula x=y, with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin; when the rotation axis of the door body is located on the third trajectory line, when the door body is rotated to 90°, the third gap between the front wall of the door body and the cabinet is equal to the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

16. The refrigerator according to claim 10, wherein: The refrigerator is embedded in the cabinet, and the target area is located on the side of the fourth trajectory away from the pivot side; when the door body rotation axis is located on the fourth trajectory, after the door body rotates to 90°, the gap between the door body and the cabinet is 0.

17. The refrigerator according to claim 16, wherein: The fourth trajectory line is a curve drawn in an XY coordinate system constructed according to the formula x=-y+A, with the first intersection line of the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, the second intersection line of the pivot side of the door body in the closed state and the hinge installation side of the door body as the Y-axis, and the intersection of the X-axis and the Y-axis as the origin, wherein A represents the first gap between the pivot side of the door body and the cabinet when the door body is in the closed state.

18. The refrigerator according to claim 10, wherein: The door body rotation axis is a physical axis or a virtual axis.

19. The refrigerator according to claim 10, wherein: The front wall of the door body is higher than the hinge, and a side of the hinge located at the pivoting side has an avoidance portion.

20. The refrigerator according to claim 10, wherein: The door body is a glass door body.

Images