Method for determining position of rotation axis center of refrigerator door body and refrigerator

Abstract

The present invention provides a method for determining the position of the rotation axis of the door body of a refrigerator and a refrigerator. The refrigerator includes a box body and a door body rotatably connected to the box body through a hinge. The position determination method includes the following steps: fitting a first trajectory line. When the rotation axis of the door body is located on the first trajectory line, the third gap between the front wall of the door body and the cabinet when the door body rotates 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; determining that the target area is located on the side of the first trajectory line facing the pivot side. During the rotation of the door body, it is determined that the rotation axis of the door body is located within the target area or on the boundary line of the target area, which can ensure that the door body will not move inward no matter how it is adjusted when it rotates to 90°.

Description

Technical Field

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

[0002] With the development of society and the gradual improvement of living standards, people's demand for the aesthetics of refrigerators has become increasingly prominent. Embedding the refrigerator into the cabinet, that is, forming an embedded refrigerator to achieve the unification of the decoration style has become a popular home decoration method.

[0003] When the rotation axis of the door body in the existing embedded refrigerator is not suitable during the rotation process of the door body, it can only be adjusted by technicians according to their own experience. During the adjustment, since it is necessary to continuously try at various positions, the adjustment time is relatively long, 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 position of the rotation axis of the door body of a refrigerator and a refrigerator to solve the above problems. Summary of the Invention

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

[0006] To achieve the above-mentioned invention purpose, the present invention adopts the following technical solution: A method for determining the position of the rotation axis of the door body of a refrigerator, the refrigerator is embedded in the cabinet, the refrigerator includes a box body and a door body rotatably connected to the box body through a hinge; the position determination method includes the following steps:

[0007] Fit a first trajectory line. When the rotation axis of the door body is located on the first trajectory line, the third gap between the front wall of the door body and the cabinet when the door body rotates 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.

[0008] Determine that the target area is located on one side of the first trajectory line facing the pivot side. During the rotation process of the door body, determine that the rotation axis of the door body is located within the target area or on the boundary line of the target area.

[0009] As a further improved technical solution of the present invention, when the door body is in the 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 the first trajectory line" specifically includes the following steps:

[0011] Taking the first intersection line between the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, taking the second intersection line between 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 taking the intersection point of the X-axis and the Y-axis as the origin, thus constructing an XY coordinate system;

[0012] Draw a first trajectory line in the XY coordinate system according to the formula x = y.

[0013] As a further improved technical solution of the present invention, the refrigerator is embedded in the cabinet, and the position determination method further includes the following steps:

[0014] Taking the first intersection line between the front wall of the door body in the closed state and the hinge installation side of the door body as the X-axis, taking the second intersection line between 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 taking the intersection point of the X-axis and the Y-axis as the origin, thus constructing an XY coordinate system;

[0015] Draw a second trajectory line in the XY coordinate system according to the formula x = -y + A;

[0016] Determine that the target area is simultaneously located on the side of the second trajectory line away from the pivot side.

[0017] As a further improved technical solution of the present invention, in the formula x = -y + A, the range of y is -T / 2 ≤ y ≤ T, where T represents the thickness value of the door body.

[0018] To achieve the above-mentioned invention purpose, the present invention also provides a refrigerator, including a box body and a door body rotatably connected to the box body through a hinge. During the process of opening and closing the door body, the door body rotates around the rotation axis of the door body, and the refrigerator is embedded in the cabinet; the rotation axis of the door body is located within 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 facing the pivot side; when the rotation axis of the door body is located on the first trajectory line, the third gap between the front wall of the door body and the cabinet when the door body rotates 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.

[0019] As a further improved technical solution of the present invention, when the door body is in the closed state, the target area is located on the hinge installation side of the door body.

[0020] As a further improved technical solution of the present invention, the first trajectory line is a straight line drawn in the XY coordinate system constructed 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 point of the X-axis and the Y-axis as the origin according to the formula x = y.

[0021] As a further improved technical solution of the present invention, the refrigerator is embedded in the cabinet, and the rotation axis of the door body 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, after the door body rotates to 90°, the gap between the door body and the cabinet is 0.

[0022] As a further improved technical solution of the present invention, the second trajectory line is a curve drawn in the XY coordinate system constructed 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 point of the X-axis and the Y-axis as the origin according to the formula x = -y + A, where 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.

[0023] As a further improved technical solution of the present invention, the rotation axis of the door body is a solid axis or a virtual axis.

[0024] As a further improved technical solution of the present invention, the front wall of the door body is higher than the hinge, and the side of the hinge located on the pivot side has an avoidance portion.

[0025] As a further improved technical solution of the present invention, the door body is a glass door body.

[0026] The beneficial effects of the present invention are as follows: The target area of the rotation axis of the door body can be determined according to the method for determining the position of the rotation axis of the door body in the present invention. Therefore, debugging can be carried out within the determined target area, which can ensure that the door body will not move inward no matter how it is debugged when it rotates to 90°. Compared with the prior art in which the appropriate rotation axis of the door body is determined by manually debugging according to experience, the present invention can determine the debugging area and the debugging direction according to needs, thereby avoiding the phenomenon that the door body moves inward when it rotates to 90° repeatedly during debugging, which increases the debugging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a partial schematic perspective view of a refrigerator according to an embodiment of the present invention.

[0028] Figure 2 is Figure 1Schematic top view of the refrigerator shown (hinges removed).

[0029] Figure 3 Schematic structural diagram showing the door body of the refrigerator in the present invention rotated by 90°.

[0030] Figure 4 Schematic diagram of the trajectory of the first trajectory line in the method for determining the position of the rotation axis of the door body in the present invention on the hinge installation side.

[0031] Figure 5 Schematic diagram of the trajectory of the second trajectory line in the method for determining the position of the rotation axis of the door body in the present invention on the hinge installation side.

[0032] Figure 6 Schematic diagram of the trajectory of the third trajectory line in the method for determining the position of the rotation axis of the door body in the present invention on the hinge installation side.

[0033] Figure 7 Schematic diagram of the trajectory of the fourth trajectory line in the method for determining the position of the rotation axis of the door body in the present invention on the hinge installation side.

[0034] Figure 8 Shows a circle centered on the rotation axis of the door body and passing through point D;

[0035] Figure 9 Schematic diagram of the trajectory of the fifth trajectory line in the method for determining the position of the rotation axis of the door body in the present invention on the hinge installation side;

[0036] Figure 10 Schematic structural diagram showing the refrigerator according to the second embodiment of the present invention;

[0037] Figure 11 is Figure 10 Schematic partial view of the refrigerator in. Detailed implementation manners

[0038] The present invention will be described in detail below in conjunction with the embodiments shown in the drawings. Please refer to Figures 1 - 11 shown, which is a preferred embodiment of the present invention, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. However, it should be noted that these embodiments are not limitations of the present invention, and equivalent transformations or substitutions in terms of functions, methods, or structures made by those of ordinary skill in the art based on these embodiments all fall within the protection scope of the present invention.

[0039] In the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and does not require the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. For example, in the following description, Figure 2 the lower side in Figure 2 is the front and the upper side is the rear.

[0040] Figure 1 Fig. 6 shows a partial schematic perspective view of an embedded refrigerator according to an embodiment of the present invention. Figure 2 Fig. 7 shows a schematic top view (removing the hinge) of an embedded refrigerator according to an embodiment of the present invention, in which only one side of the cabinet 4 is shown. In actual installation, the embedded refrigerator is entirely embedded in the cabinet 4. It can be understood that the embedded refrigerator is not necessarily embedded in the cabinet 4, but can also be embedded in the wall. As Figure 1 and Figure 2 shown, the structure of this embedded refrigerator is consistent with that of the existing refrigerators. Generally, it includes a box body 1 and a door body 2 rotatably connected to the box body 1 through a hinge 3. The door body 2 includes a front wall 22, a hinge mounting side 23 and a pivot side 21. The front wall 22 of the door body 2 is the side facing the external environment when the embedded refrigerator is embedded in the cabinet 4. The hinge mounting side 23 of the door body 2 is the upper side of the door body 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 box body 1 of the refrigerator. The pivot side 21 of the door body 2 is the side where the door body 2 rotates around the box body 1.

[0041] The present invention provides a method for determining the position of the rotation axis of the door body of a refrigerator, including the following steps:

[0042] Fit a first trajectory line. When the rotation axis of the door body is located on the first trajectory line, the third gap between the front wall of the door body and the cabinet when the door body rotates 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;

[0043] Determine that the target area is located on the side of the first trajectory line facing the pivot side. During the rotation of the door body, determine that the rotation axis of the door body is located within the target area or on the boundary line of the target area.

[0044] It can be understood that in the embodiment with only the first trajectory line, the above-mentioned boundary line refers to the first trajectory line.

[0045] It should be noted that the rotation axis of the door body being located within the target area or on the boundary line of the target area can be understood as follows: during the rotation of the door body 2, the rotation axis of the door body 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 that during the rotation of the door body 2, the rotation axis of the door body moves within the target area and / or on the boundary line of the target area.

[0046] When debugging the position of the rotation axis of the door body on the first trajectory line, when the door body 2 rotates 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 when the door body is in the closed state and the cabinet 4, that is, when the door body rotates to 90°, it does not move inward toward the side away from the pivot side 21, and it will not affect the user's access to items; when debugging the position of the rotation axis of the door body on the side of the first trajectory line facing the pivot side 21, the third gap is smaller than the first gap when the door body rotates to 90°, that is, when the door body rotates to 90°, it will move outward toward the pivot side 21, which is more conducive to the user's access to items; when debugging the position of the rotation axis of the door body on the side of the first trajectory line away from the pivot side 21, the third gap is larger than the first gap when the door body rotates to 90°, that is, when the door body rotates to 90°, it will move inward toward the side away from the pivot side 21, which will obscure part of the space of the box on the pivot side and is not conducive to the user's access to items. Therefore, in the present invention, the side of the first trajectory line facing the pivot side 21 is determined as the target area. When the rotation axis of the door body is located within the target area or on the first trajectory line serving as the boundary line of the target area, when the door body 2 rotates to 90°, the door body 2 will not move inward, and thus, it will not affect the user's access to items.

[0047] During the rotation of the door body in the present invention, the rotation axis of the door body is always located within the target area or on the boundary line of the target area. Thus, it can be ensured that the position where the rotation axis of the door body is set can make the door body 2 not move inward when it rotates to 90°. Compared with the prior art in which the appropriate rotation axis of the door body is determined by continuously debugging according to experience manually, the present invention can be debugged within the determined target area, and it can be ensured that no matter how the door body 2 is debugged, it will not move inward when it rotates to 90°, thereby avoiding the phenomenon that the door body 2 moves inward when it rotates to 90° repeatedly during the debugging process, which increases the debugging time.

[0048] Specifically, the rotation axis of the door body can be a physical axis or a virtual axis. For example, when the hinge 3 is a single-axis hinge, the rotation axis of the door body is the axis of the rotating shaft in the single-axis hinge, that is, a physical axis. When the hinge 3 is a multi-axis hinge, the rotation axis of the door body is a virtual axis defined by the multiple axes in the multi-axis hinge.

[0049] Further, the above-mentioned "fitting the first trajectory line" specifically includes the following steps:

[0050] As Figure 4 shown, taking the 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, taking the 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 taking the intersection point of the X-axis and the Y-axis as the origin O, thereby constructing an XY coordinate system;

[0051] Draw the first trajectory line H in the XY coordinate system according to the formula x = y.

[0052] Further, the acquisition method of the formula x = y is: set the coordinates of the door rotation axis in the XY coordinate system as (x, y), where x represents the abscissa of the door rotation axis and y represents the ordinate of the door rotation axis. Assume x ≠ y. It can be understood that, as Figure 2 shown, when the door body 2 is in the closed state, the gap between the door body 2 and the cabinet 4 is the first gap A, as Figure 3 shown, when the door body 2 rotates 90°, 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 remains unchanged after the door body 2 rotates, then a = 0, that is, x = y.

[0053] Further, the range of y in the formula x = y is 0 ≤ y ≤ T, where T represents the thickness value of the door body. To make the door rotation axis located on the hinge installation side 23, which is convenient for setting the hinge axis position. Of course, this is not limited thereto. In the embodiment where the door rotation axis is arranged outside the door body 2, the value range of y can also be adaptively expanded, such as -T / 2 ≤ y ≤ T.

[0054] Preferably, in the formula x = y, 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.

[0055] Therefore, if it is required that the third gap between the front wall 22 of the door body 2 and the cabinet 4 is equal to the first gap when the door body 2 rotates to 90°, it is necessary to find the axis of rotation of the door body 2 on the first trajectory line H or to move the axis on the first trajectory line H. If it is required that the third gap between the front wall 22 of the door body 2 and the cabinet 4 is smaller than the first gap when the door body 2 rotates to 90°, it is necessary to find the axis of rotation of the door body on the side of the first trajectory line H facing the pivot side 21 or to move the axis of rotation of the door body on the side of the first trajectory line H facing the pivot side 21.

[0056] According to the solution of the embodiment of the present invention, the first trajectory line H of the axis on the hinge installation side 23 can be determined according to the formula x = y. Selecting the axis on the first trajectory line H or moving on the first trajectory line H can ensure that the gap between the door body 2 and the cabinet 4 remains unchanged when the door body 2 rotates to 90°.

[0057] Further, when the refrigerator is embedded in the cabinet 4, the position determination method further includes the following steps:

[0058] Taking the 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, taking the 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 taking the intersection point of the X-axis and the Y-axis as the origin O, thereby constructing an XY coordinate system;

[0059] As Figure 5 shown, draw the second trajectory line L in the XY coordinate system according to the formula x = -y + A; when the axis of rotation of the door body is on the second trajectory line L, 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°;

[0060] Determine that the target area is simultaneously located on the side of the second trajectory line L away from the pivot side 21.

[0061] When the axis of rotation of the door body is on the side of the second trajectory line L close to the pivot side 21, the door body 2 protrudes from the cabinet 4 when it rotates to 90°, that is, there will be interference with the cabinet 4; when the axis of rotation of the door body is on the side of the second trajectory line 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 rotates to 90°. Therefore, the target area is further limited to be simultaneously located on the side of the second trajectory line L away from the pivot side 21 to enable the normal use of the built-in refrigerator.

[0062] It can be understood that the first trajectory line H and the second trajectory line L jointly define the target area. At this time, the boundary line of the target area is the first trajectory line H and the second trajectory line L. When the rotation axis of the door body is within the target area or on the boundary line, when the door body 2 rotates to 90°, it will not move inward and will not collide with the cabinet 4.

[0063] Further, the method for obtaining the formula x = -y + A is as follows: Set the coordinates of the rotation axis of the door body on the XY coordinate system as (x, y), where x represents the abscissa of the rotation axis of the door body and y represents the ordinate of the rotation axis of the door body. Assume x ≠ y. It can be understood that, as Figure 2 shown, when the door body 2 is in the closed state, the gap between the door body 2 and the cabinet 4 is the first gap A. As Figure 3 shown, when the door body 2 rotates 90°, the gap between the door body 2 and the cabinet 4 becomes the third gap A + a. If there is no gap between the door body 2 and the cabinet 4 after the door body 2 rotates, then a = -A, that is, x = -y + A.

[0064] Further, in the formula x = -y + A, the range of y is 0 ≤ y ≤ T, where T represents the thickness value of the door body. Of course, this is not limited thereto. In the embodiment where the rotation axis of the door body is arranged outside the door body 2, the value range of y can also be adaptively expanded, such as -T / 2 ≤ y ≤ T.

[0065] Preferably, in the formula x = -y + 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.

[0066] Further, the position determination method further includes the following steps:

[0067] Fit out the third trajectory line. When the rotation axis of the door body is on the third trajectory line, during the rotation of the door body 2, the end of the front wall 22 of the door body located at the pivot side 21 is tangent to the cabinet 4;

[0068] Determine that the target area is on the side of the third trajectory line away from the box body 1.

[0069] When the rotation axis of the door body is located on the third trajectory line, during the rotation of the door body 2, one end of the front wall 22 of the door body located on the pivot side 21 is tangent to the cabinet 4; when the rotation axis of the door body is located on the side of the third trajectory line far from the box body 1, there is a gap between one end of the front wall 22 of the door body 2 located on the pivot side 21 and the cabinet 4; when the rotation axis of the door body is located on the side of the third trajectory line close to the box body 1, one end of the front wall 22 of the door body 2 located on the pivot side 21 collides with the cabinet 4. Therefore, it is further defined that the target area is located on the side of the third trajectory line far from the box body 1, so that there is no interference between the door body 2 and the cabinet 4 during the rotation of the door body 2.

[0070] Further, the above-mentioned "fitting out the third trajectory line" specifically includes the following steps:

[0071] Taking the 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, taking the 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 taking the intersection point of the X-axis and the Y-axis as the origin O, an XY coordinate system is constructed;

[0072] According to the formula x = (y 2 -A 2 ) / 2A, the third trajectory line is drawn in the XY coordinate system, where, as Figure 2 shown in, A represents 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.

[0073] It can be understood that the above origin is one end of the front wall 22 of the door body 2 located on the pivot side 21.

[0074] Further, the range of y in the formula x = (y 2 -A 2 ) / 2A is: 0 ≤ y ≤ T, where T represents the thickness value of the door body. So that the determined target area is within the thickness value range of the door body in the closed state. Of course, it is not limited to this. In the embodiment where the rotation axis of the door body is arranged outside the door body, the value range of y can also be adaptively expanded, such as -T / 2 ≤ y ≤ T; or the range of y can also be set so that the target area is located on the hinge installation side 23 of the door body 2 in the closed state, which is convenient for the setting of the hinge axis.

[0075] 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.

[0076] Among them, the method for obtaining the formula x = (y 2 -A 2 ) / 2A is as follows: Set the coordinates of the rotation axis center of the door body in the XY coordinate system as (x, y), where x represents the abscissa of the rotation axis center of the door body, and y represents the ordinate of the rotation axis center of the door body. Assume that the distance from the rotation axis center of the door body to the origin is R1. Then, during the rotation of the door body 2, the origin moves on a circle with the center (x, y) and radius R1. 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 through conversion, we can get: x 2 +y 2 =(x + A) 2 . By decomposing the formula, the above formula x = (y 2 -A 2 ) / 2A can be obtained.

[0077] 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 is tangent to the cabinet 4 at one end of the pivot side 21.

[0078] Assume that the thickness value 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, the third trajectory line E as shown in Figure 6 can be drawn. If the center of the circle is each point on the third trajectory line E, and the distance from the points on the third trajectory line E to the origin is used as the radius, then the circles passing through the origin will all be tangent to the cabinet 4. That is, when the rotation axis center of the door body is on the third trajectory line E, during the rotation of the door body 2, the front wall 22 of the door body is tangent to the cabinet 4 at one end of the pivot side 21. And if the center is at a point on the side of the third trajectory line E away from the box body 1, then the circles passing through the origin will have a gap with the cabinet 4. That is, when the rotation axis center of the door body is on the side of the third trajectory line E away from the box body 1, during the rotation of the door body 2, the front wall 22 of the door body has a gap with the cabinet 4. Therefore, when the rotation axis center of the door body is within the target area defined by the third trajectory line E, the front wall 22 of the door body at one end of the pivot side 21 will not interfere with the cabinet 4, that is, there will be no interference between the door body 2 and the cabinet 4 during the rotation of the door body 2.

[0079] As Figure 6 shown, it can be understood that the target area defined by the third trajectory line E is located within the target area defined by the second trajectory line L and is smaller than the target area defined by the second trajectory line L. Therefore, when the third trajectory line E is present, the second trajectory line L may not be considered. Based on this, the third trajectory line E and the first trajectory line H can jointly define the target area. At this time, the boundary line of the target area is the first trajectory line H and the third trajectory line E. When the rotation axis of the door body is located within the target area or on the boundary line of the target area, the door body will not move inward and will not collide with the cabinet 4 when it rotates to 90°, and there will be no interference between the door body 2 and the cabinet 4 during the rotation of the door body 2.

[0080] Furthermore, the position determination method further includes the following steps:

[0081] Fit a fourth trajectory line. When the rotation axis of the door body is located on the fourth trajectory line, during the rotation of the door body, the end of the rear wall of the door body on the pivot side is tangent to the box body;

[0082] Determine that the target area is located on the side of the fourth trajectory line close to the pivot side.

[0083] When the rotation axis of the door body is located on the side of the fourth trajectory line close to the pivot side 21, there is a gap between the door body 2 and the box body 1 during the rotation of the door body 2; when the rotation axis of the door body is located on the side of the fourth trajectory line far from the pivot side 21, there will be a collision between the door body 2 and the box body 1 during the rotation of the door body 2. Therefore, it is further defined that the target area is located on the side of the fourth trajectory line close to the pivot side 21 to avoid interference between the door body 2 and the box body 1 during the rotation of the door body 2. Compared with the prior art method of manually adjusting according to experience to determine the appropriate rotation axis of the door body, the present invention can be adjusted within the determined target area, which can ensure that there will be no interference with the box body 1 no matter how it is adjusted, thereby avoiding the phenomenon of repeatedly interfering with the box body 1 during the adjustment process and increasing the adjustment time.

[0084] Furthermore, the above "fitting out the fourth trajectory line" specifically includes the following steps:

[0085] Take the 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, take the 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 take the intersection point of the X-axis and the Y-axis as the origin O to construct an XY coordinate system;

[0086] According to the formula y = T-(x2 -B 2 ) / 2B Draw the fourth trajectory line in the XY coordinate system, where B represents the second gap between the door body and the box body when the door body is in the closed state, and T represents the thickness value of the door body.

[0087] Further, in the formula y = T - (x 2 -B 2 ) / 2B, the range of x is 0 ≤ x ≤ L, where L represents the width value of the door body. So that the determined target area is within the width value range of the door body when it is in the closed state. Of course, this is not limited to this. When the rotation axis of the door body is set on the hinge installation side 23 when the door body is in the closed state, the value range of x can also be adaptively reduced to facilitate the setting of the hinge axis.

[0088] Specifically, as Figure 2 shown, the hinge installation side 23 of the door body 2 includes four sides, namely the front side, the rear side, the left side and the right side. Among them, 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, and the intersection of the rear side and the right side is defined as point N.

[0089] It can be understood that point N is located at one end of the rear wall of the door body 2 on the pivot side 21.

[0090] Among them, the method of obtaining the formula y = T - (x 2 -B 2 ) / 2B is: Set the coordinates of the rotation axis of the door body on the XY coordinate system as (x, y), where x represents the abscissa of the rotation axis of the door body, and y represents the ordinate of the rotation axis of the door body. As Figure 7 shown, assume that the distance from the rotation axis of the door body 2 to point N is R2, and the distance from the axis to the rear side is C. Then, during the rotation of the door body 2, point N moves on a circle with a radius of R2 around the axis (x, y). To avoid interference between the door body 2 and the box body 1, it is necessary to ensure that point N does not interfere with the box body 1. Therefore, the following conditions need to be met: R2 - C ≤ B, y = T - C and x 2 +C 2 = R2 2 , take R2 - C = B, then through conversion, we can get: From this, we can get: x 2 +C 2 =(C + B) 2 , decompose the formula to get: C = (x 2 -B 2 ) / 2B, substitute it into y = T - C to get the formula y = T - (x 2 -B 2 ) / 2B.

[0091] 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.

[0092] 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 7 The fourth trajectory F shown. If the center of the circle is each point in the second trajectory F, and the distance from the point of the second trajectory F to the N point is used as the radius, then the circle passing through the N points will be tangent to the box 1, that is, when the rotation axis of the door body is located on the fourth trajectory F, during the rotation of the door body 2, the N points on the door body 2 are tangent to the box 1. If the center of the circle is at a point on the side of the fourth trajectory F close to the pivot side 21, the circle passing through the N points will have a gap with the box 1, that is, when the rotation axis of the door body is located on the side of the fourth trajectory F close to the pivot side 21, during the rotation of the door body 2, there is a gap between the N points and the box 1. If the center of the circle is at a point on the side of the fourth trajectory F away from the pivot side 21, the circle passing through the N points will overlap with the box 1, that is, when the rotation axis of the door body is located on the side of the fourth trajectory F away from the pivot side 21, during the rotation of the door body 2, there is interference between the N points and the box 1. Therefore, when the door body rotation axis is located in the area defined by the side of the fourth track line close to the pivot side 21, the N point of the door body 2 is tangent to the box body 1 or has a gap, and will not interfere with the box body 1. Therefore, it is further defined that the target area is located on the side of the fourth track line close to the pivot side, and when the door body rotation axis is located in the target area, there is no interference between the door body 2 and the box body 1 during the rotation process.

[0093] Please refer to Figure 6 As shown, it can be understood that the target area defined by the third trajectory line E is located within the target area defined by the second trajectory line L, and is smaller than the target area defined by the second trajectory line L. Therefore, when the third trajectory line E is present, the second trajectory line L does not need to be considered.

[0094] Based on the above, the fourth trajectory line F can define the target area together with the first trajectory line H. At this time, the boundary line of the target area is the first trajectory line H and the fourth trajectory line F. When the rotation axis of the door body is located in the target area or on the boundary line corresponding to the target area, the door body will not move inward when it rotates to 90°, and the door body 2 will not interfere with the box body 1 during rotation.

[0095] Alternatively, the fourth trajectory line F can jointly define the target area with the first trajectory line H and the second trajectory line L. At this time, the boundary line of the target area is the first trajectory line H, the second trajectory line L, and the fourth trajectory line F. When the rotation axis of the door body is located within the target area or on the corresponding boundary line of the target area, the door body will not move inward and will not interfere with the cabinet 4 when it rotates to 90°. At the same time, the door body 2 will not interfere with the box body 1 during the rotation process.

[0096] Alternatively, the fourth trajectory line F can jointly define the target area with the first trajectory line H and the third trajectory line E. At this time, the boundary line of the target area is the first trajectory line H and the third trajectory line E. When the rotation axis of the door body is located within the target area or on the corresponding boundary line of the target area, the door body will not move inward and will not interfere with the cabinet 4 when it rotates to 90°. At the same time, the door body 2 will not interfere with the box body 1 and the cabinet 4 during the rotation process.

[0097] Further, the position determination method further includes the following steps:

[0098] Obtain the preset maximum opening angle of the door body 2;

[0099] Fit a fifth trajectory line. When the rotation axis of the door body is located on the fifth trajectory line, the actual maximum opening angle of the door body 2 is equal to the preset maximum opening angle;

[0100] Determine that the target area is simultaneously located on the side of the fifth trajectory line away from the pivot side 21.

[0101] It can be understood that when the refrigerator is an embedded refrigerator, the actual maximum opening angle of the door body 2 refers to the situation where the door body 2 is opened until it interferes with the cabinet 4.

[0102] When the rotation axis of the door body is located on the fifth trajectory line, the actual maximum opening angle of the door body 2 is equal to the preset maximum opening angle; when the rotation axis of the door body is located on the side of the fifth trajectory line away from the pivot side 21, the actual maximum opening angle of the door body is greater than the preset maximum opening angle; when the rotation axis of the door body is located on the side of the fifth trajectory line close to the pivot side 21, the actual maximum opening angle of the door body 2 is less than the preset maximum opening angle. Thus, it is defined that the target area is simultaneously located on the side of the fifth trajectory line away from the pivot side 21, so that the actual maximum opening angle of the door body 2 is not less than the preset maximum opening angle.

[0103] Further, "fitting the fifth trajectory line" specifically includes the following steps:

[0104] Taking the 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, taking the 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 taking the intersection point of the X-axis and the Y-axis as the origin O, thus constructing an XY coordinate system;

[0105] Draw the fifth trajectory line in the XY coordinate system according to the formula x = y * tanV / 2 - A, where V represents the preset maximum opening angle, and A represents the first gap between the pivot side of the door body when the door body is in the closed state and the cabinet.

[0106] Further, in the formula x = y * tanV / 2 - A, the range of y is 0 ≤ y ≤ T, where T represents the thickness value of the door body. To make the rotation axis of the door body located on the hinge installation side 23. Of course, this is not limited thereto. In the embodiment where the rotation axis of the door body is arranged outside the door body 2, the value range of y can also be adaptively expanded, such as -T / 2 ≤ y ≤ T.

[0107] 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.

[0108] Specifically, the acquisition method of the formula x = y * tanV / 2 - A is: set the coordinates of the rotation axis of the door body in the XY coordinate system as (x, y), where x represents the abscissa of the rotation axis of the door body, and y represents the ordinate of the rotation axis of the door body. As Figure 8 shown, assuming that V is the preset maximum opening angle, the cabinet 4 has a point D on the same horizontal line as the origin. Taking the rotation axis of the door body as the center and the distance from the rotation axis of the door body to point D as the radius to draw a circle, the intersection point of the circle and the front edge of the hinge installation side 23 of the door body 2 in the closed state is point E. Then the included angle between the line connecting the rotation axis of the door body and point D and the line connecting the rotation axis of the door body and point E is the angle V that the door body 2 has turned. 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 drawing a line perpendicular to the front wall 22 of the door body from the center of the circle can bisect the angle V, that is, V = 2W, and tanW = (x + A) / y. Decomposing the formula, we can get x = y * tanV / 2 - A.

[0109] Assuming that the thickness value T of the door body 2 and the first gap A are fixed values, then according to the above solved formula and the range of y 0 ≤ y ≤ T, it can be drawn as shown in Figure 9As shown by the fifth trajectory line G, it can be concluded that it is a straight line. When the rotation axis of the door body is located on the fifth trajectory line G, the actual maximum opening angle of the door body 2 is equal to V. When it is on the side of the fifth trajectory line G away from the pivot side 21, the actual maximum opening angle of the door body 2 is greater than V. When it is on the side of the fifth trajectory line G close to the pivot side 21, the actual maximum opening angle of the door body 2 is less than V.

[0110] As Figure 9 shown, the target area defined by the fifth trajectory line G is located within the target area defined by the second trajectory line L and is smaller than the target area defined by the second trajectory line L. Therefore, when there is the fifth trajectory line G, the second trajectory line can be not considered.

[0111] Specifically, the fifth trajectory line G and the first trajectory line H can jointly define the target area. At this time, the boundary lines of the target area are the fifth trajectory line G and the first trajectory line H. Please refer to the figure shown. The target area defined by the fifth trajectory line G and the first trajectory line H is located within the target area defined by the second trajectory line, within the target area defined by the third trajectory line, and at the same time within the target area defined by the fourth trajectory line F. Therefore, when the rotation axis of the door body is within the target area or on the corresponding boundary line of the target area, when the door body 2 rotates to 90°, it will not move inward and will not collide with the cabinet 4. At the same time, during the rotation of the door body 2, the door body 2 will not collide with the cabinet 4 and the box body 1.

[0112] Further, please refer to Figures 1 - 2 shown. The present invention also provides an embedded refrigerator, which is embedded in the cabinet 4. The embedded refrigerator includes a box body 1 and a door body 2 rotatably connected to the box body 1 through a hinge 3. During the process of opening and closing the door body 2, the door body 2 rotates around the rotation axis of the door body. The rotation axis of the door body is set within the target area or on the boundary line of the target area. The determination method of the target area is determined by the above-mentioned method for determining the position of the rotation axis of the door body, and thus will not be elaborated one by one here.

[0113] Specifically, the rotation axis of the door body can be a physical axis or a virtual axis. For example, when the hinge 3 is a single-axis hinge, the rotation axis of the door body is the axis of the rotating shaft in the single-axis hinge, that is, a physical axis. When the hinge 3 is a multi-axis hinge, the rotation axis of the door body is a virtual axis defined by the multiple axes in the multi-axis hinge.

[0114] Next, taking the rotation axis of the door body as a physical axis as an example, the determination method of the rotation axis of the door body in the embedded refrigerator in the implementation manners under several specific requirements will be elaborated.

[0115] The first implementation manner:

[0116] As Figure 9 shown, define the line segment between the intersection point P1 of the first track line H and the fifth track line G and the origin as the first line segment. After comprehensive consideration, it is finally determined that the rotation axis of the door body is a certain fixed point on the first line segment, or the rotation axis of the door body moves on the first line segment. At this time, the actual maximum opening angle of the door body 2 is not less than the preset maximum opening angle. At the same time, during the rotation of the door body 2, there will be no interference between the door body 2 and the cabinet 1 and the box body 4. Moreover, after the door body 2 is opened to 90°, it will not move inward.

[0117] In a specific embodiment, A = 4 and V = 120°. The coordinates of point P1 can be obtained as (-5.46, 5.46). Considering the diameter strength requirement of the hinge axis, it is set that the diameter of the hinge axis is greater than or equal to 6 mm. Considering the installation of the hinge axis on the door body 2, point P1 is finally selected as the axis point. 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 opening angle of the door is 120°. At the same time, when the door body 2 is opened to 90°, it will not move inward.

[0118] Second embodiment:

[0119] The difference between this embodiment and the first embodiment is that: As Figure 10 shown, the door hinge device 3 includes an upper hinge device 33 and a lower hinge device 34. The upper hinge device 33 and the lower hinge device 34 each have a hinge seat 31 and a hinge shaft 32. The following takes the upper hinge device 33 as an example for illustration. Those skilled in the art know that the lower hinge device 34 can be designed according to the installation form of the upper hinge device 33 on the door body 2 and the box body 1.

[0120] The front wall 22 of the door body 2 is higher than the hinge 3 to achieve the purpose of hiding the hinge 3. It is beneficial to the overall appearance effect of the built-in refrigerator.

[0121] Specifically, the position of the top side of the door body 2 (i.e., the hinge installation side 23) is higher than the position of 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 seat 31 of the upper hinge device 33 straddles the top side of the box body 1 and the groove 231 of the door body 2 to hide the upper door hinge device 3 behind the door body 2.

[0122] See Figure 11, the groove 231 runs through the pivot side 21, the hinge mounting side 23 on the upper side, and the rear side of the door body 2. That is to say, the groove 231 does not run through the front side 22 of the door body 2. When the door body 2 is in the closed state and the refrigerator is observed from the front, the groove 231 cannot be seen, so that the upper door body hinge device 3 cannot be seen, and then the upper door body hinge device 3 is hidden in the groove 231, ensuring the aesthetics of the door body 2.

[0123] The hinge seat 31 of the upper hinge device 33 can be configured as a rectangle. One long side of the rectangular structure is aligned with the outer edge of the top side of the cabinet body 1, and is also aligned with the outer edge of the top side 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 run through the front side 22 of the door body 2, therefore, the side of the hinge seat 31 located on the pivot side 23 has an avoidance portion 311 as Figure 11 shown. The avoidance portion 311 can avoid the front wall 22 of the door body 2 when the door body 2 is opened to a large angle, so as to smoothly install the hinge seat 31 on the top sides of the cabinet body 1 and the door body 2.

[0124] Moreover, 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 cabinet body 1. The hinge shaft 32 is arranged on the line connecting the intersection of the third locus line E and the first locus line H and the intersection point P1.

[0125] In a specific example, a door body rotation axis position point is determined on this 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.

[0126] In another specific example, if it is necessary to simultaneously satisfy that the actual maximum door opening angle of the door body 2 is not less than the preset maximum door opening angle, the ordinate 9 in the above coordinates can be kept unchanged, and the abscissa can be moved to the third locus line E or the side of the third locus line E away from the cabinet body 1. For example, the coordinates of the door body rotation axis can be selected as (-11.59, 9).

[0127] Third embodiment:

[0128] The difference between the third embodiment of the present invention and the first embodiment is that: the door body 2 is a glass door body. It is more scratch-resistant, and the glass door body has a variety of patterns and can be freely matched with furniture, etc.

[0129] Since the front wall 22 of the glass door body is a glass panel with a certain thickness, and the plastic door trim for fixing the glass door body also requires a certain wall thickness, a bonding gap for tape or hot melt adhesive needs to be provided between the plastic door trim and the glass panel. Therefore, for the glass door body, the hinge axis needs to be at a relatively large 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 within the overlapping area on the side of the third track line E away from the cabinet 1, the side of the fourth track line F towards the pivot side 21, the side of the fifth track line G away from the pivot side 21, and the side of the first track line H away from the pivot side 21, or on the fifth track line G in the overlapping area. For example, the coordinates of the door body rotation axis can be selected as (-15, 11).

[0130] In summary, according to the method for determining the position of the door body rotation axis in the present invention, the target area of the door body rotation axis can be determined. Thus, debugging can be carried out within the determined target area, which can ensure that the door body 2 will not move inward no matter how it is debugged when it rotates to 90°. Compared with the prior art method of artificially and continuously debugging according to experience to determine the appropriate position of the door body rotation axis, the present invention can determine the debugging area and the debugging direction according to needs, thereby avoiding the phenomenon that the door body 2 moves inward when it rotates to 90° repeatedly during debugging, which increases the debugging time.

[0131] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0132] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for determining the position of the rotation axis of the door body of a refrigerator, the refrigerator is embedded in a cabinet, and the refrigerator includes a box body and a door body rotatably connected to the box body through a hinge; characterized in that: The position determination method includes the following steps: Fit a first trajectory line. When the rotation axis of the door body is on the first trajectory line, when the door body rotates 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; Determine that the target area is on the side of the first trajectory line facing the pivot side of the door body. During the rotation of the door body, determine that the rotation axis of the door body is within the target area or on the boundary line of the target area.

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

3. The method for determining the position of the rotation axis of the door body of the refrigerator according to claim 1, characterized in that: "Fitting the first trajectory line" specifically includes the following steps: Taking 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, taking 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 taking the intersection point of the X-axis and the Y-axis as the origin, so as to construct an XY coordinate system; Draw the first trajectory line in the XY coordinate system according to the formula x = y.

4. The method for determining the position of the rotation axis of the door body of the refrigerator according to claim 1, characterized in that: The refrigerator is embedded in the cabinet, and the position determination method further includes the following steps: Taking 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, taking 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 taking the intersection point of the X-axis and the Y-axis as the origin, so as to construct an XY coordinate system; Draw a second trajectory line in the XY coordinate system according to the formula x = -y + A; Determine that the target area is simultaneously on the side of the second trajectory line away from the pivot side of the door body.

5. The method for determining the position of the rotation axis of the door body of the refrigerator according to claim 4, characterized in that: In the formula x = -y + A, the range of y is -T / 2 ≤ y ≤ T, where T represents the thickness value of the door body.

6. A refrigerator, comprising a cabinet body and a door body rotatably connected to the cabinet body by a hinge. During the process of opening and closing the door body, the door body rotates around the rotation axis of the door body, and the refrigerator is embedded in a cabinet. It is characterized in that: The rotation axis of the door body is within the target area or on the boundary line of the target area, and the target area is on the side of the first trajectory line facing the pivot side of the door body; when the rotation axis of the door body is on the first trajectory line, when the door body rotates 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.

7. The refrigerator according to claim 6, characterized in that: When the door body is in the closed state, the target area is on the hinge installation side of the door body.

8. The refrigerator according to claim 6, characterized in that: The first trajectory line is a straight line drawn in the XY coordinate system constructed 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 point of the X-axis and the Y-axis as the origin according to the formula x = y.

9. The refrigerator according to claim 6, characterized in that: The refrigerator is embedded in the cabinet, and the rotation axis of the door body is on the side of the second trajectory line away from the pivot side of the door body; when the rotation axis of the door body is on the second trajectory line, after the door body rotates to 90°, the gap between the door body and the cabinet is 0.

10. The refrigerator according to claim 9, characterized in that: The second locus line is a curve drawn in an XY coordinate system constructed 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 point of the X-axis and the Y-axis as the origin according to the formula x = -y + A, where 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.

11. The refrigerator according to claim 6, characterized in that: The rotation axis of the door body is a solid axis or a virtual axis.

12. The refrigerator according to claim 6, characterized in that: The front wall of the door body is higher than the hinge, and the side of the hinge located on the pivot side of the door body has an avoidance portion.

13. The refrigerator according to claim 6, characterized in that: The door body is a glass door body.

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