Box assembly and refrigeration appliance

Abstract

The application discloses a box assembly and a refrigeration device. The box assembly comprises a box, a door body sealing an opening of the box, and a hinge assembly pivotally connecting the box and the door body. When the door body is in a closed state, a first reference plane passes through an inner edge and is parallel to a plane where the opening is located, and a second reference plane passes through an outer edge and is perpendicular to the plane where the opening is located. When the door body is opened to a first angle relative to the box from the closed state, a motion center of the door body moves along a first motion center trajectory to the first reference plane with the outer edge as a starting point, and simultaneously moves to a side of the second reference plane facing the opening. The problem of extruding the box and exceeding the side of the box assembly when the door body is opened can be reduced.

Description

TECHNICAL FIELD

[0001] The present application specifically relates to a cabinet assembly and a refrigeration device. BACKGROUND

[0002] For a cabinet assembly with a door body and a cabinet, when the door body is opened relative to the cabinet, the door body can extrude the cabinet, and the door body can also exceed the side of the cabinet assembly; this can cause damage to the cabinet and interference with the installation environment of the cabinet assembly, for example, for embedded installation, the part of the door body exceeding the side of the cabinet assembly can interfere with the embedded wall. SUMMARY

[0003] The present application provides a cabinet assembly and a refrigeration device to solve the problem of extrusion of the door body to the cabinet and the door body exceeding the side of the cabinet assembly during opening.

[0004] To solve the above technical problems, the present application provides a cabinet assembly, which comprises:

[0005] a cabinet for forming a containing space with an opening;

[0006] a door body for blocking the opening;

[0007] a hinge assembly arranged to pivotally connect the cabinet and the door body at a pivot side of the cabinet;

[0008] wherein the door body has an inner edge and an outer edge at the pivot side, the door body is further provided with a first reference plane and a second reference plane, the first reference plane passes through the inner edge when the door body is in a closed state and is parallel to the plane where the opening is located, the second reference plane passes through the outer edge when the door body is in the closed state and is perpendicular to the plane where the opening is located, the first reference plane and the second reference plane remain stationary relative to the cabinet during opening of the door body relative to the cabinet;

[0009] during opening of the door body relative to the cabinet from the closed state to a first opening angle under the action of the hinge assembly, the instantaneous center of motion of the door body moves along a first instantaneous center trajectory from the outer edge to the first reference plane, and simultaneously moves towards the side of the second reference plane facing the opening.

[0010] The door body and the box body in the box body assembly are pivotally connected by the hinge assembly, and the door body may be pressed against the box body and the door body may exceed the side of the box body assembly. Therefore, the movement locus of the instantaneous center of the door body is limited when the door body is opened to a first angle relative to the box body from the closed state under the action of the hinge assembly. To facilitate the description of the characteristics of the movement locus, a first reference plane and a second reference plane of the door body are defined. The first reference plane passes through the inner edge in the closed state and is parallel to the plane of the opening of the box body. The second reference plane passes through the outer edge in the closed state and is perpendicular to the plane of the opening of the box body. Specifically, the instantaneous center moves along the first instantaneous center locus towards the first reference plane X with the outer edge as the starting point, and simultaneously moves towards the side of the opening of the second reference plane Y, so as to ensure that the door body does not cause large pressure on the box body and the door body does not excessively exceed the side of the box body. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 is a structural schematic diagram of a first embodiment of the box body assembly of the present application;

[0013] Figure 2 is a schematic diagram of the movement relationship of the door body relative to the box body in the existing box body assembly;

[0014] Figure 3 is Figure 1 is a schematic diagram of the instantaneous center locus of the door body in the first embodiment of the box body assembly shown in

[0015] Figure 4 is Figure 1 is a schematic diagram of the movement locus of the edge in the second embodiment of the box body assembly shown in

[0016] Figure 5 is Figure 1 is a schematic diagram of the opening angle of the door body relative to the box body and the movement locus of the edge in the second embodiment of the box body assembly shown in

[0017] Figure 6 is Figure 1 is a schematic diagram of the movement locus of the reference point in the second embodiment of the box body assembly shown in

[0018] Figure 7 is Figure 1 is a schematic diagram of the selection range of the inner reference point in the second embodiment of the box body assembly shown in

[0019] Figure 8 is Figure 1 is a schematic diagram of the selection range of the outer reference point in the second embodiment of the box assembly shown in

[0020] Figure 9 is Figure 1 is a schematic diagram of the tangent direction angle of the trajectory of the inner reference point in the second embodiment of the box assembly shown in

[0021] Figure 10 is Figure 1 is a schematic diagram of the tangent direction angle of the trajectory of the outer reference point in the second embodiment of the box assembly shown in

[0022] Figure 11 is a schematic diagram of the fourth embodiment of the box assembly of the present application;

[0023] Figure 12 is Figure 11 is a schematic diagram of the hinge shaft structure of the hinge assembly in the fourth embodiment of the box assembly shown in

[0024] Figure 13 is Figure 11 is a schematic diagram of the hinge slot structure of the hinge assembly in the fourth embodiment of the box assembly shown in

[0025] Figure 14 is Figure 11 is a schematic diagram of the instantaneous center trajectory of the instantaneous center of the door body in the fourth embodiment of the box assembly shown in

[0026] Figure 15 is Figure 11 is a schematic diagram of the state of the hinge assembly when the door body is in a closed state relative to the box in the fourth embodiment of the box assembly shown in

[0027] Figure 16 is Figure 11 is a schematic diagram of the state of the hinge assembly when the door body is opened to a first opening angle relative to the box in the fourth embodiment of the box assembly shown in

[0028] Figure 17 is Figure 11 is a schematic diagram of the state of the hinge assembly when the door body is opened to a second opening angle relative to the box in the fourth embodiment of the box assembly shown in

[0029] Figure 18 is Figure 11 is a schematic diagram of the state of the hinge assembly when the door body is opened to a third opening angle relative to the box in the fourth embodiment of the box assembly shown in DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described in the specification of the present application in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0031] Reference herein to “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it referring to a particular alternative embodiment or set of alternative embodiments, to the exclusion of other embodiments. It is expressly understood that the embodiments described herein are combinable with each other.

[0032] Please refer to Figure 1 , Figure 1 is a structural schematic view of a first embodiment of a box assembly of the present application. The box assembly 100 of the present embodiment comprises a box 11, a door body 12 and a hinge assembly 13. The box 11 is used to form a containing space with an opening, the door body 12 is used to block the opening, and the hinge assembly 13 is arranged to pivotally connect the box 11 and the door body 12 at a pivot side of the box 11, so that the door body 12 can be opened or closed relative to the box 11 under the action of the hinge assembly 13.

[0033] There are various forms of hinge assemblies that can realize the relative rotation of the door body and the box, and the arrangement of the hinge assembly determines the relative movement relationship between the door body and the box. For the box assembly 900 in the prior art, as shown in Figure 2 , Figure 2 is a schematic view of the movement relationship between the door body and the box in the prior art box assembly. When the door body 92 is opened to a certain angle, the problem of the door body 92 pressing the box 91 and the door body 92 exceeding the side of the box assembly 900 occurs. The side of the box assembly 900 can be the side of the box 91 or the side in the closed state of the door body 92. Obviously, the hinge assembly 93 in the prior art cannot solve the technical problems of the present application.

[0034] In the present application, the movement trajectory of the instantaneous center of motion of the door body is limited to alleviate the problem of the door body pressing the box and exceeding the side of the box assembly. Based on the calculation principle of relative motion, the relative movement relationship between the door body and the box can be determined according to the movement trajectory of the instantaneous center of motion, and then the movement trajectory of the fixed point on the box or the door body can be determined, and the hinge assembly can be designed according to the movement trajectory of the fixed point. Therefore, the hinge assembly that can realize the movement trajectory of the instantaneous center of motion and the edge movement trajectory in the present application is within the scope of the present application.

[0035] Specifically refer to Figures 3 to 5 , Figure 3 is Figure 1 the first embodiment of the box body assembly door body movement instantaneous center of instantaneous trajectory diagram; Figure 4 is Figure 1 the first embodiment of the box body assembly edge movement trajectory diagram, Figure 5 is Figure 1 the first embodiment of the box body assembly door body relative to the opening angle of the box body and the edge movement trajectory diagram.

[0036] The door body 12 has an inner edge 122 and an outer edge 121 on the pivot side. When the door body 12 is in the closed state relative to the box body 11, the inner edge 122 is closer to the box body 11 than the outer edge 121. In this embodiment, a first reference plane X and a second reference plane Y are further defined, wherein the first reference plane X passes through the inner edge 122 in the closed state, and is parallel to the plane where the opening is located; the second reference plane Y passes through the outer edge 121 in the closed state, and is perpendicular to the plane where the opening is located.

[0037] In the process of opening the door body 12 from the closed state to the first opening angle relative to the box body 11 under the action of the hinge assembly 13, the movement instantaneous center of the door body 12 moves along the first instantaneous trajectory A3B3 from the outer edge 121 to the first reference plane X, and at the same time moves to the side of the opening relative to the second reference plane Y. The first reference plane X and the second reference plane Y do not move during the opening process of the door body 12 relative to the box body 11, and are reference planes that remain stationary relative to the box body 11. For the outer edge 121, during the process of opening the door body 12 to the first opening angle, the movement instantaneous center is always located on the side of the outer edge 121 away from the second reference plane Y, and the outer edge 121 moves towards the first reference plane X. For the inner edge 122, during the process of opening the door body 12 to the first opening angle, the movement instantaneous center is always located on the side of the inner edge 122 away from the first reference plane X, and the inner edge 122 moves away from the first reference plane X.

[0038] In this embodiment, the movement trajectory of the movement instantaneous center of the door body 12 is defined, specifically, the movement instantaneous center moves along the first instantaneous trajectory A3B3 from the outer edge 121 to the first reference plane X, and at the same time moves to the side of the opening relative to the second reference plane Y. The movement instantaneous center with this movement trajectory, the door body 12 simultaneously rotates and moves, and the movement trend of the door body 12 relative to the box body 11 does not excessively squeeze the box body 11, nor excessively exceed the side surface of the box assembly.

[0039] The relative limit of the movement locus of the instantaneous center of motion of the door body 12 determines the degree of extrusion of the inner edge 122 to the box body 11 and the degree of extrusion of the outer edge 121 to the side surface of the box body assembly. In actual application, the inner edge 122 can be allowed to extrude to the box body 11 to a certain degree, for example, if a deformable door seal is arranged on the box body 11, the extrusion of the inner edge 122 to the box body 11 to a certain degree can be ignored; similarly, the outer edge can be allowed to extrude to the side surface of the box body assembly 100 to a certain degree, for example, for the embedded use of the box body assembly, there is a gap between the box body 11 and the wall in which the box body 11 is embedded, and the gap allows the outer edge 121 to extrude to the side surface of the box body assembly 100 to a certain degree.

[0040] It should be noted that in the planar motion of a rigid body, as long as any cross-sectional figure S (or its extension) on the rigid body parallel to a certain fixed plane has a non-zero angular velocity ω at any instant, there is a point P' with zero velocity, which is called the velocity instantaneous center. In terms of velocity distribution, the cross-sectional figure (or its extension) seems to only rotate around a point P coinciding with P' on the fixed plane at this instant, and the point P is called the rotation instantaneous center. The instantaneous center of motion in the present embodiment can be the rotation instantaneous center or the velocity instantaneous center of the door body 12.

[0041] Further, the angle between the vertical line connecting the instantaneous center of motion and the inner edge 122 and the first reference plane X is between 85-95 degrees. If the instantaneous center of motion is within this range, the inner edge 122 moves along the first inner edge locus A2B2 toward the opening side of the second reference plane Y, and does not cause excessive extrusion to the box body 11. Among them, the maximum and minimum values of the angle between the vertical line connecting the instantaneous center of motion and the inner edge 122 and the first reference plane X during the opening process are 95 degrees or 85 degrees, which can ensure that the door body 12 does not cause large extrusion to the box body 11.

[0042] Similarly, the angle between the vertical line connecting the instantaneous center of motion and the outer edge 121 and the second reference plane Y is between 85-95 degrees. If the instantaneous center of motion is within this range, the outer edge 122 moves along the first outer edge locus A1B1 toward the first reference plane X, and does not excessively extrude to the side surface of the box body 11. Among them, the maximum and minimum values of the angle between the vertical line connecting the instantaneous center of motion and the outer edge 121 and the second reference plane Y during the opening process are 95 degrees or 85 degrees, which can ensure that the door body 12 does not excessively extrude to the side surface of the box body 11.

[0043] In an embodiment, the vertical line connecting the motion instantaneous center and the inner edge 122 is perpendicular to the first reference plane X, and the first inner edge trajectory A2B2 of the inner edge 122 is a straight line and parallel to the first reference plane X during the process that the door body 12 is opened to the first angle; the vertical line connecting the motion instantaneous center and the outer edge 121 is perpendicular to the second reference plane Y, and the first outer edge trajectory A1B1 of the outer edge 121 is a straight line and parallel to the second reference plane Y during the process that the door body 12 is opened to the first angle. By limiting the positional relationship between the motion instantaneous center and the inner edge 122 and the outer edge 121, the embodiment can ensure that the edges move smoothly and that the door body 12 does not extrude the cabinet 11 and that the door body 12 does not exceed the side of the cabinet 11.

[0044] In an embodiment, the first instantaneous center trajectory A3B3 of the motion instantaneous center of the door body 12 is a circular arc during the process that the door body 12 is opened to the first angle, the center of the circular arc is located at the midpoint of the vertical line connecting the inner edge 122 and the outer edge 121, and the diameter of the circular arc is the vertical distance between the inner edge 122 and the outer edge 121. When the motion instantaneous center of the door body 12 moves along the first instantaneous center trajectory A3B3, the first inner edge trajectory A2B2 of the inner edge 122 is a straight line and parallel to the first reference plane X, and the first outer edge trajectory A1B1 of the outer edge 121 is a straight line and parallel to the second reference plane Y. By limiting the first instantaneous center trajectory of the motion instantaneous center, the embodiment can ensure that the edges move smoothly and that the door body 12 does not extrude the cabinet 11 and that the door body 12 does not exceed the side of the cabinet 11.

[0045] Further, the angle between the line connecting the motion instantaneous center and the center of the circle and the line connecting the center of the circle and the starting point of the first instantaneous center trajectory A3B3 is equal to the actual opening angle of the door body 12 relative to the cabinet 11. The movement of the motion instantaneous center and the first opening angle of the door body 12 change regularly, the door body 12 moves smoothly as a whole during the process of being opened to the first opening angle, avoiding the situation of sliding and lagging, and ensuring that the door body 12 does not extrude the cabinet 11 and that the door body 12 does not exceed the side of the cabinet 11. Specifically, the first opening angle is between 25 degrees and 31 degrees, for example, the first opening angle can be 25 degrees, 28 degrees, 30 degrees, or 31 degrees, etc. Within the first opening angle, it can be ensured that the door body 12 does not extrude the cabinet 11 and that the door body 12 does not exceed the side of the cabinet 11.

[0046] Overall, in the process that the door body 12 is opened to the first opening angle relative to the cabinet 11 under the action of the hinge assembly 13, the movement instantaneous center of the door body 12 moves along the first instantaneous center trajectory A3B3 toward the first reference plane X from the outer edge 121 as the starting point, and simultaneously moves toward the opening side of the second reference plane Y. The first instantaneous center trajectory A3B3 has certain characteristics, and the door body 12 moves according to the first instantaneous center trajectory A3B3, so that the extrusion of the door body 12 to the cabinet 11 and the door body 12 exceeding the side of the cabinet 11 can be weakened or even avoided.

[0047] That is, in the process that the door body 12 is opened to the first opening angle, the inner edge 122 of the door body 12 does not extrude the cabinet 11, and does not excessively move away from the cabinet 11; the outer edge 121 does not exceed the side of the cabinet assembly 100, and does not excessively move toward the opening side of the second reference plane Y. Therefore, the door body 12 does not have a significant displacement problem when being opened, and the movement of the door body 12 is more stable.

[0048] In the present embodiment, if the movement instantaneous center of the door body 12 moves along the first movement instantaneous center trajectory to 90 degrees of opening of the door body 12, the door body 12 cannot be continuously opened. The maximum opening angle of the door body 12 generally needs to be greater than 90 degrees. Therefore, after the movement instantaneous center of the door body 12 moves along the first inner instantaneous center trajectory to less than 90 degrees of opening of the door body 12, other instantaneous center trajectories are used to enable the door body 12 to be opened more than 90 degrees thereafter.

[0049] As described above, the door body 12 can move along another trajectory after being opened to the first opening angle. In the process that the door body 12 is opened to the second opening angle relative to the cabinet 11 under the action of the hinge assembly 13, the movement instantaneous center moves along the second instantaneous center trajectory B3C3 toward the first reference plane X, and the included angle between the tangent direction of the second instantaneous center trajectory B3C3 and the first reference plane X is between 85 degrees and 95 degrees.

[0050] According to the characteristics of the above trajectory, in the process that the door body 12 is opened from the first opening angle to the second opening angle, the door body 12 does not extrude the cabinet 11, and does not excessively exceed the side of the cabinet 11, so that the door body 12 has space to be opened to a larger angle.

[0051] The instantaneous center of motion moves along the second instantaneous center trajectory B3C3 towards the first reference plane X, and the tangent direction of the second instantaneous center trajectory B3C3 has an included angle with the first reference plane X between 85 degrees and 95 degrees. Within this range, since the instantaneous center of motion is always located on the side of the outer edge 121 away from the second reference plane Y, it is ensured that the second outer edge trajectory A2B2 of the outer edge 122 moves towards the first reference plane X and does not excessively exceed the side of the cabinet 11; since the instantaneous center of motion is always located on the side of the inner edge 121 away from the first reference plane X, it is ensured that the first inner edge trajectory A2B2 of the inner edge 122 moves towards the side of the opening of the second reference plane Y and does not excessively extrude the cabinet 11.

[0052] Further, the second instantaneous center trajectory B3C3 is a straight line and is perpendicular to the first reference plane X. During the process that the door body 12 is opened from the first opening angle to the second opening angle, the second outer edge trajectory B1C1 of the outer edge 121 is a straight line and is parallel to the second reference plane Y, which can ensure that the outer edge 121 does not excessively exceed the side of the cabinet 11; the inner edge 122 moves away from the first reference plane X, which can ensure that the door body 12 does not excessively extrude the cabinet 11. The end point C2 of the second inner edge trajectory B2C2 of the inner edge 122 is located on the side of the first reference plane X away from the opening, so that the door body 12 has space to open a larger angle. Moreover, the second instantaneous center trajectory B3C3 of the instantaneous center of motion and the second opening angle of the door body 12 change regularly, and the door body 12 moves smoothly during the process of being opened from the first opening angle to the second opening angle, avoiding the situation of sliding and jamming.

[0053] Further, during the process that the door body 12 is opened from the first opening angle to the second opening angle, the included angle between the vertical line connecting the instantaneous center of motion and the outer edge 121 and the second reference plane Y is between 85 degrees and 95 degrees. Within this range, it is ensured that the second outer edge trajectory B1C1 of the outer edge 122 moves towards the first reference plane X and does not excessively exceed the side of the cabinet 11. The maximum value and the minimum value of the included angle between the vertical line connecting the instantaneous center of motion and the outer edge 121 and the second reference plane Y during the opening process are 95 degrees or 85 degrees, which can ensure that the door body 12 does not excessively exceed the side of the cabinet 11. When the vertical line connecting the instantaneous center of motion and the outer edge 121 is perpendicular to the second reference plane Y, that is, the included angle between the vertical line connecting the instantaneous center of motion and the outer edge 121 and the second reference plane Y is 90 degrees, during the process that the instantaneous center of motion of the door body 12 moves along the second instantaneous center trajectory B3C3, the second outer edge trajectory B1C1 of the outer edge 121 is a straight line and is perpendicular to the first reference plane X, which can ensure that the door body 12 does not exceed the side of the cabinet 11.

[0054] Meanwhile, as the door 12 opens from the first opening angle to the second opening angle, the vertical distance from the inner edge 122 to the instantaneous center of motion gradually decreases, thereby gradually reducing the radius of curvature of the second inner edge trajectory B2C2 of the inner edge 122. The endpoint C2 of the second inner edge trajectory B2C2 is located on the side away from the opening of the first reference plane X, allowing the door 12 to open to a larger angle and ensuring that the door 12 will not squeeze the box.

[0055] Based on the characteristics of the trajectory described above, during the process of the door 12 moving from the first opening angle to the second opening angle, the door 12 will not squeeze the box 11, nor will it extend too far beyond the side of the box 11.

[0056] Specifically, the second opening angle is between 57 degrees and 60 degrees. For example, the first opening angle can be 57 degrees, 58 degrees, 59 degrees, or 60 degrees. Within the second opening angle, it can be ensured that the door 12 will not squeeze the box 11, and that the door 12 will not extend beyond the side of the box 11.

[0057] Under the action of the hinge assembly 13, the door 12 can continue to open from the second opening angle to the third opening angle relative to the box 11. During this process, the instantaneous center of motion can remain unchanged, and the door 12 rotates around the instantaneous center of motion. The trajectory of this motion direction also corresponds to the larger opening angle of the door 12.

[0058] As mentioned above, during the process of the door 12 opening from the second opening angle to the third opening angle relative to the box 11, the instantaneous center of motion remains unchanged at the endpoint of the second instantaneous center of motion. The third inner edge trajectory C2D2 of the inner edge 122 and the third outer edge trajectory C1D1 of the outer edge 121 are specifically concentric arcs.

[0059] Based on the characteristics of the trajectory described above, during the process of the door 12 moving from the second opening angle to the third opening angle, the door 12 will not squeeze the box 11, nor will it extend too far beyond the side of the box 11.

[0060] After the instantaneous center of motion of the door body 12 moves along the first instantaneous center trajectory A3B3, in order to achieve a larger opening angle, the rotation of the door body 12 can also be achieved by taking the end point of the first instantaneous center trajectory A3B3 as the third instantaneous center trajectory C3D3, thereby solving the problems of squeezing the box body 11 and going beyond the side of the box body 11.

[0061] However, after designing the hinge assembly 13 based on the first instantaneous center trajectory A3B3 plus the third instantaneous center trajectory, the door 12 is prone to wobbling during rotation when it rotates through the hinge assembly 13. To further optimize and solve the wobbling problem, a second instantaneous center trajectory is added between the first instantaneous center trajectory A3B3 and the third instantaneous center trajectory, making the movement of the door 12 more stable and smooth.

[0062] Furthermore, this application also alleviates the problems of door squeezing into the cabinet and exceeding the side of the cabinet assembly by limiting the tangential direction of the movement trajectory of the edges on the door. The relative motion between the door and the cabinet can be essentially converted into the tangential trajectory of the movement trajectory of the edges on the door. By designing the tangential direction of the movement trajectory of the edges, the relative motion relationship between the door and the cabinet can be limited, thus preventing the door from excessively squeezing the door gap and from excessively exceeding the side of the cabinet assembly. After designing the tangential direction of the movement trajectory of the edges, the movement trajectory of fixed points on the cabinet or door can be determined based on the tangential direction of the movement trajectory of the edges. The hinge assembly can then be designed by reverse deduction based on the movement trajectory of the fixed points. Therefore, hinge assemblies that can achieve both the tangential direction of the movement trajectory and the movement trajectory of the edges in this application are within the protection scope of this application.

[0063] This application provides a second embodiment, which is designed from a different perspective—the tangential direction of the movement trajectory of the door edge—compared to the first embodiment. Therefore, the figures and reference numerals in the first embodiment are still used. Please refer to the following for details. Figure 4 and Figure 5 , Figure 4 yes Figure 1 The diagram shows the motion trajectory of the edge in the second embodiment of the box assembly. Figure 5 yes Figure 1 The diagram shows the opening angle of the door relative to the box body and the trajectory of the edge movement in the second embodiment of the box body assembly.

[0064] In this embodiment, the door 12 has an inner edge 122 and an outer edge 121 on the pivot side. When the door 12 is closed relative to the housing 11, the inner edge 122 is closer to the housing 11 than the outer edge 121. This embodiment further defines a first reference plane X and a second reference plane Y. The first reference plane X passes through the inner edge 122 when closed and is parallel to the plane containing the opening; the second reference plane Y passes through the outer edge 121 when closed and is perpendicular to the plane containing the opening.

[0065] During the opening process of door 12 from a closed state relative to housing 11 to a first opening angle under the action of hinge assembly 13, inner edge 122 moves along the first inner edge trajectory A2B2 towards the side facing the opening on the second reference plane Y, while outer edge 121 moves along the first outer edge trajectory A1B1 towards the first reference plane X. The first reference plane X and the second reference plane Y do not move during the opening process of door 12 relative to housing 11; they remain stationary relative to housing 11. Given the pivotal connection between door 12 and housing 11, the final movement directions of inner edge 122 relative to the second reference plane Y and outer edge 121 relative to the first reference plane X during the opening process are necessarily the directions described above.

[0066] Further, the tangent direction of the first inner edge trajectory A2B2 is arranged along the first reference plane X or is arranged to be inclined to the first reference plane X by a first included angle not greater than 10 degrees, and the tangent direction of the first outer edge trajectory A1B1 is arranged perpendicular to the first reference plane X or is arranged to be inclined to the first reference plane X by a second included angle gradually approaching 90 degrees. The length of the first inner edge trajectory A2B2 is greater than the length of the first outer edge trajectory A1B1, and the ratio of the length of the first inner edge trajectory A2B2 to the length of the first outer edge trajectory A1B1 is 3.5-4.5.

[0067] The tangent direction of the movement trajectory is defined in the embodiment, and the ratio of the length of the first inner edge trajectory A2B2 to the length of the first outer edge trajectory A1B1 is also defined, so that the edge can move smoothly and not exceed the predetermined range. Specifically, the first included angle of the tangent direction of the first inner edge trajectory A2B2 to the first reference plane X and the second included angle of the tangent direction of the first outer edge trajectory A1B1 to the second reference plane Y are defined. When the tangent direction of the first outer edge trajectory A1B1 is arranged to be inclined to the first reference plane X by a second included angle gradually approaching 90 degrees, and the first included angle of the tangent direction of the first inner edge trajectory A2B2 to the first reference plane X is 10 degrees, it can be ensured that the door body 12 does not cause large extrusion to the box body 11, and the door body 12 does not excessively exceed the side surface of the box body 11. When the tangent direction of the first outer edge trajectory A1B1 is arranged perpendicular to the first reference plane X, and the tangent direction of the first inner edge trajectory A2B2 is arranged along the first reference plane X, the two trajectories are straight lines, and correspond to the case that the two trajectories are straight lines. The maximum first opening angle can reach 90 degrees. In this case, the length of the first inner edge trajectory A2B2 is greater than the length of the first outer edge trajectory A1B1, and the ratio of the length of the first inner edge trajectory A2B2 to the length of the first outer edge trajectory A1B1 is 3.5-4.5.

[0068] The related definition of the tangent direction of the first inner edge trajectory A2B2 determines the degree of extrusion of the inner edge 122 to the box body 11. In actual application, a certain degree of extrusion of the inner edge 122 to the box body 11 can be allowed, for example, if a deformable door seal is arranged on the box body 11, the certain degree of extrusion of the inner edge 122 to the box body 11 can be ignored.

[0069] Similarly, the relevant limitation of the tangent direction of the first outer edge trajectory A1B1 determines the extent to which the outer edge 121 can exceed the side of the cabinet assembly. In actual application, the outer edge 121 can be allowed to exceed the side of the cabinet assembly 100 to a certain extent, for example, for the embedded use of the cabinet assembly, there is a gap between the cabinet 11 and the wall in which the cabinet 11 is embedded, and the gap allows the outer edge 121 to exceed the side of the cabinet assembly 100 to a certain extent.

[0070] Further, during the process that the door body 12 is opened from the closed state to the first opening angle, the first included angle remains unchanged, that is, the first inner edge trajectory A2B2 is a straight line; or the first included angle monotonously changes in a straight line form, and the first inner edge trajectory A2B2 is an arc line, and the inner edge 122 moves along the straight line or arc line-shaped first inner edge trajectory A2B2 smoothly.

[0071] Further, the difference between the maximum value and the minimum value of the first included angle is less than 5 degrees, that is, the first inner edge trajectory A2B2 is overall gentle, further ensuring the smoothness of the movement of the inner edge 122 along the first inner edge trajectory A2B2.

[0072] Similarly, during the process that the door body 12 is opened from the closed state to the first opening angle, the second included angle remains unchanged, that is, the first outer edge trajectory A1B1 is a straight line; or the second included angle gradually approaches 90 degrees, that is, the first outer edge trajectory A1B1 is an arc line, and the outer edge 121 moves along the straight line or arc line-shaped first outer edge trajectory A1B1 smoothly.

[0073] Therefore, the door body 12 moves smoothly during the process of being opened to the first opening angle, avoiding the situation of sliding and jamming.

[0074] In an embodiment, for the movement of the outer edge 121 and the inner edge 122 in the respective directions, the distance between the first outer edge trajectory A1B1 and the side of the first reference plane Y away from the opening is not greater than the first predetermined distance d1; and the distance between the first inner edge A2B2 and the side of the first reference plane X toward the opening is not greater than the second predetermined distance d2.

[0075] The embodiment further limits the distance by which the movement trajectory can exceed the reference plane, ensuring that the edges can move smoothly and not exceed the predetermined range. The relevant limitation of the first predetermined distance d1 determines the extent to which the outer edge 121 can exceed the side of the cabinet assembly 100. In actual application, the outer edge 121 can be allowed to exceed the side of the cabinet assembly 100 to a certain extent, for example, for the embedded use of the cabinet assembly, there is a gap between the cabinet 11 and the wall in which the cabinet 11 is embedded, and the gap allows the outer edge 121 to exceed the side of the cabinet assembly 100 to a certain extent.

[0076] Similarly, the relevant limitation of the second preset distance d2 determines the degree of extrusion of the inner edge 122 to the box body 11. In actual application, a certain degree of extrusion of the inner edge 122 to the box body 11 can be allowed, for example, if a deformable door seal is arranged on the box body 11, the certain degree of extrusion of the inner edge 122 to the box body 11 can be ignored.

[0077] Therefore, the specific values of the first and second predetermined distances can be determined according to the actual product design needs, for example, the first predetermined distance can be determined according to the distance between the wall in which the box assembly is embedded and the box assembly, and the second distance can be determined according to the thickness or elasticity of the door seal on the box body; in the embodiment, the door body thickness is used as a scalar to limit the first and second predetermined distances to 0-0.15 times the door body thickness, if 0 times is selected, it is limited that the door body does not extrude the box body and does not exceed the side of the box assembly, and in the embodiment, 0.1 times can be specifically selected, that is, the distance exceeding 0.1 times the door body thickness is allowed; the first predetermined distance can also be limited according to the empirical value, which is 0-4 mm, and the second predetermined distance is 0-2 mm, and similarly, if 0 mm is selected, it is limited that it does not exceed; in the embodiment, the first predetermined distance is 3 mm, and the second predetermined distance is 1 mm, that is, the distance exceeding the distance is allowed.

[0078] In general, in the process of opening the door body 12 to the first opening angle relative to the box body 11 under the action of the hinge assembly 13, the inner edge 122 moves along the first inner edge trajectory A2B2, and the outer edge 121 moves along the first outer edge trajectory A1B1. The tangent direction of the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, and the length of the first inner edge trajectory A2B2 and the length of the first outer edge trajectory A1B1 have certain characteristics, and the door body 12 moves according to the trajectory, so that the extrusion of the door body 12 to the box body 11 and the exceeding of the door body 12 to the side of the box assembly 100 can be weakened or even avoided.

[0079] The end point B2 of the first inner edge trajectory A2B2 is located on the first reference plane X, or the end point B2 is located on the side away from the opening of the first reference plane X and the distance to the first reference plane X is not greater than 0.058t; the end point B1 of the first outer edge trajectory A1B1 is located on the second reference plane Y, or the end point B1 is located on the side toward the opening of the second reference plane Y and the distance to the second reference plane Y is not greater than 0.135t, wherein t is the door body thickness.

[0080] That is, after the door body 12 is opened to the first opening angle, the inner edge 122 of the door body 12 does not press against the cabinet 11, and does not move excessively away from the cabinet 11; the outer edge 121 does not exceed the side surface of the cabinet assembly 100, and does not move excessively toward the side of the opening of the second reference plane Y. Thus, the door body 12 does not have a significant displacement problem when being opened, and the movement of the door body 12 is more stable.

[0081] In the present embodiment, if the edges of the door body 12 move along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1 to an opening angle of 90 degrees, the door body 12 cannot be opened further. However, the maximum opening angle of the door body 12 is generally greater than 90 degrees. Therefore, after the edges of the door body 12 are moved along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1 to an opening angle less than 90 degrees, other trajectories are used so that the door body 12 can be opened to an angle greater than 90 degrees.

[0082] As mentioned above, the door body 12 can move along other trajectories after being opened to the first opening angle. In the present embodiment, during the process in which the door body 12 is opened to a second opening angle relative to the cabinet 11 under the action of the hinge assembly 13, the inner edge 122 moves along a second inner edge trajectory B2C2 toward the side of the opening of the second reference plane Y and away from the side of the opening of the first reference plane X, and the outer edge 121 moves along a second outer edge trajectory B1C1 toward the first reference plane X.

[0083] The inner edge 122 starts to move toward the side of the opening of the second reference plane Y, and the third angle between the tangent direction of the second inner edge trajectory B2C2 and the first reference plane X gradually increases, and the increase amplitude corresponding to each unit angle of the door body 12 gradually increases. The end point C2 of the second inner edge trajectory B2C2 is located on the side of the opening away from the first reference plane X, so that the door body 12 has space to be opened to a larger angle.

[0084] At the same time, the second outer edge trajectory B1C1 is designed according to the first outer edge trajectory A1B1, and the tangent direction thereof is perpendicular to the first reference plane X, or is inclined relative to the first reference plane X at a fourth angle between 70 degrees and 110 degrees.

[0085] According to the above characteristics of the trajectories, during the process in which the door body 12 is opened from the first opening angle to the second opening angle, the door body 12 does not press against the cabinet 11, and does not excessively exceed the side surface of the cabinet 11.

[0086] Further, in the process that the door body 12 is opened from the first opening angle to the second opening angle, the fourth included angle remains unchanged, that is, the second outer edge trajectory B1C1 is a straight line; or, the second outer edge trajectory B1C1 monotonously changes in a straight line form, the second outer edge trajectory B1C1 is an arc, and the outer edge 121 moves smoothly along the straight line or arc-shaped second outer edge trajectory B1C1.

[0087] Further, the difference between the maximum value and the minimum value of the fourth included angle is not less than 10 degrees, that is, the second outer edge trajectory B1C1 is overall gentle, further ensuring the smoothness of the movement of the outer edge 121 along the second outer edge trajectory B1C1.

[0088] Similarly, in the process that the door body 12 is opened from the first opening angle to the second opening angle, the third included angle gradually increases, that is, the second inner edge trajectory B2C2 is an arc, and the inner edge 122 moves smoothly along the arc-shaped second inner edge trajectory B2C2. Further, the difference between the maximum value and the minimum value of the third included angle is not less than 35 degrees, the second inner edge trajectory B2C2 is overall gentle, further ensuring the smoothness of the movement of the inner edge 122 along the second inner edge trajectory B2C2.

[0089] Therefore, the door body 12 moves smoothly in the process that the door body 12 is opened from the first opening angle to the second opening angle, avoiding the situation of sliding and jamming.

[0090] Further, the inner edge 122 starts to move towards the side of the opening of the second reference plane Y, and the curvature radius of the movement trajectory of the inner edge 122, the second inner edge trajectory B2C2, gradually decreases, and the end point C2 of the second inner edge trajectory B2C2 is located on the side away from the opening of the first reference plane X, and the distance to the first reference plane is not less than 0.3t. So that the door body 12 has space to open a larger angle.

[0091] In this process, the second outer edge trajectory B1C1 is designed according to the first outer edge trajectory A1B1, the curvature radius thereof is not less than 5t, and the distance of the second outer edge trajectory B1C1 from the side away from the opening of the second reference plane Y is not greater than the first preset distance d1.

[0092] According to the characteristics of the above trajectories, in the process that the door body 12 is opened from the first opening angle to the second opening angle, the door body 12 will not extrude the cabinet 11, and will not excessively exceed the side surface of the cabinet assembly.

[0093] The door body 12 can also continue to open relative to the cabinet 11 under the action of the hinge assembly 13 from the second opening angle to a third opening angle, in the process, the inner edge 122 moves away from the side of the opening along the third inner edge trajectory C2D2 to the first reference plane X, and the outer edge 121 moves toward the side of the opening along the third outer edge trajectory C1D1 to the second reference plane Y. The trajectory of the movement direction also corresponds to a larger opening angle of the door body 12.

[0094] The third inner edge trajectory C2D2 and the third outer edge trajectory C1D1 are concentrically arranged circular arcs, and the curvature radius of the third inner edge trajectory C2D2 is 0.55t-0.67t, and the curvature radius of the third outer edge trajectory C1D1 is 0.45t-0.55t.

[0095] After the edges of the door body 12 move along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, in order to achieve a larger opening angle, the door body 12 can also directly move along the third inner edge trajectory C2D2 and the third outer edge trajectory C1D1, thereby solving the problems of extruding the cabinet 11 and exceeding the side of the cabinet assembly.

[0096] However, after designing the hinge assembly 13 according to the first trajectory and the third trajectory, the door body 12 is prone to shaking during rotation through the hinge assembly 13. To further optimize and solve the shaking problem, a second trajectory is added between the first trajectory and the third trajectory, so that the movement process of the door body 12 is more stable and smooth.

[0097] In addition, considering the design of the hinge assembly 13, the ratio of the curvature radius of the third inner edge trajectory C2D2 to the curvature radius of the third outer edge trajectory C1D1 is 1.22, which can prevent interference problems in the structure corresponding to the third trajectory on the hinge assembly 13.

[0098] Specifically, the design of the three trajectories, the first opening angle corresponding to the first trajectory is 25-31 degrees, the second opening angle corresponding to the second trajectory is 57-60 degrees, and the third opening angle corresponding to the third trajectory is 122-132 degrees.

[0099] The length of the first inner edge trajectory A2B2 is 0.465t, and the length of the first outer edge trajectory A1B1 is 0.115t.

[0100] The length of the second outer edge trajectory B1C1 is 0.2285t, and the second inner edge trajectory B2C2 is arranged so that the movement distance of the inner edge 122 on the second inner edge trajectory B2C2 and the rotation angle of the door body 12 relative to the cabinet satisfy the following formula:

[0101]

[0102] Where θ1 is the rotation angle, t1 is the movement distance, and θ is a preset angle of 100-113 degrees.

[0103] The radius of curvature of the third inner edge trajectory C2D2 is 0.61t, and the radius of curvature of the third outer edge trajectory C1D1 is 0.5t. The centers of the third inner edge trajectory C2D2 and the third outer edge trajectory C1D1 are located inside the door body 12. The distance from the center to the first reference plane X is 0.6t, and the distance to the second reference plane Y is 0.5t.

[0104] When carrying out the actual design, considering issues such as installation deformation, reference points can be selected for trajectory design, thereby reserving tolerances for the edges on the door 12 to ensure that the door 12 does not squeeze the box 11 or extend beyond the side of the box assembly 100.

[0105] like Figures 6 to 10 As shown, Figure 6 yes Figure 1 The diagram shows the motion trajectory of the reference point in the second embodiment of the housing assembly. Figure 7 yes Figure 1 The diagram shows the selection range of the internal reference point in the second embodiment of the housing assembly. Figure 8 yes Figure 1 The diagram shown illustrates the selection range of the external reference point in the second embodiment of the housing assembly. Figure 9 yes Figure 1 The diagram shows the tangent direction angle of the trajectory of the inner reference point in the second embodiment of the box assembly. Figure 10 yes Figure 1 The diagram shows the tangent direction angle of the trajectory of the external reference point in the second embodiment of the box assembly.

[0106] In this embodiment, an inner reference point R2 and an outer reference point R1 are set. The inner reference point R2 is set adjacent to the inner edge 122, and the outer reference point R1 is set adjacent to the outer edge 121.

[0107] Specifically, the perpendicular distance from the inner reference point R2 to the first reference plane X is no greater than 0.1t, and the perpendicular distance to the second reference plane Y is no greater than 0.1t. That is, the selection range of the inner reference point R2 is a rectangular region with a side length of 0.2t centered on the inner edge 122. Similarly, the perpendicular distance from the outer reference point R1 to the second reference plane Y is no greater than 0.1t, and the perpendicular distance to the third reference plane Z is no greater than 0.1t. That is, the selection range of the outer reference point R1 is a rectangular region with a side length of 0.2t centered on the outer edge 121. The third reference plane Z passes through the outer edge 121 when it is in the closed state and is parallel to the first reference plane X.

[0108] The inner reference point R2 can be selected on the inner edge 122, and the outer reference point R1 can be selected on the outer edge 121.

[0109] The trajectory design idea of the inner reference point R2 and the outer reference point R1 is also based on the trajectory design idea of the inner edge 122 and the outer edge 121. When the door body 12 is opened to the first opening angle relative to the cabinet 11 under the action of the hinge assembly 13, the inner reference point R2 moves along the first inner reference point trajectory E2F2 toward the side of the opening of the second reference plane Y, and the outer reference point R1 moves along the first outer reference point trajectory E1F1 toward the first reference plane X.

[0110] The possible characteristics of the first inner reference point trajectory E2F2 are similar to those of the first inner edge trajectory A2B2, and the possible characteristics of the first outer reference point trajectory E1F1 are similar to those of the first outer edge trajectory A1B1. The tangent directions of the first inner reference point trajectory E2F2 and the second outer reference point trajectory E1F1 are described in detail as follows:

[0111] Referring to Figure 6 and Figure 8 A coordinate system is established with any point on the inner edge 122 of the door body 12 in the closed state as the origin, a straight line passing through the origin and located on the first reference plane X and perpendicular to the second reference plane Y as the x-axis, and a straight line passing through the origin and located on the second reference plane Y and perpendicular to the first reference plane X as the y-axis. The inner reference point R2 takes (-0.1t, 0.1t), (0, 0.1t), (0.1t, 0.1t), (-0.1t, 0), (0, 0), (0.1t, 0), (-0.1t, -0.1t), (0, -0.1t), and (0.1t, 0.1t) respectively, corresponding to the first inner reference point trajectory E2F2 on Figure 8 from left to right in the first row.

[0112] As can be seen from the figure, the tangent direction of the first inner reference point trajectory E2F2 is arranged along the first reference plane X, or is arranged inclinedly relative to the first reference plane X at a fifth included angle of not more than 10 degrees.

[0113] Further, during the process that the door body 12 is opened from the closed state to the first opening angle, the fifth included angle remains unchanged, or monotonously changes in a straight line form, and the difference between the maximum value and the minimum value of the fifth included angle is less than 5 degrees.

[0114] Referring to Figure 7 and Figure 9, the outer reference point R1 is taken as (-0.1t, 0.1t), (0, 0.1t), (0.1t, 0.1t), (-0.1t, 0) (0, 0), (0.1t, 0), (-0.1t, -0.1t), (0, -0.1t), (0.1t, 0.1t) respectively, corresponding to the first outer reference point track E1F1 in Figure 9 sequentially from left to right in the first row.

[0115] As can be seen from the figure, the tangent direction of the first outer reference point track E1F1 is perpendicular to the first reference plane X, or is inclined to the first reference plane X at a sixth included angle gradually approaching 90 degrees.

[0116] Further, the length of the first inner reference point track E2F2 is greater than the length of the first outer reference point track E1F1, and the ratio of the length of the first inner reference point track E2F2 to the length of the first outer reference point track E1F1 is 3.5-4.5.

[0117] For the convenience of design, in a specific embodiment, the first inner reference point track E2F2 and the first outer reference point track E1F1 are straight lines. Based on the selected position of the inner reference point R2, the first inner reference point track E2F2 can be along the first reference plane X or parallel to the first reference plane X; and based on the selected position of the outer reference point R1, the first outer reference point track is along the second reference plane Y or parallel to the second reference plane Y. Therefore, the tangent direction of the first inner reference point track E2F2 is along the first reference plane, and the tangent direction of the first outer reference point track E1F1 is perpendicular to the first reference plane.

[0118] Similarly, corresponding to the inner edge 122 and the outer edge 121, the inner reference point R2 and the outer reference point R1 can both appear the second track and the third track. Among them, the possible features of the second inner reference point track F2G2 are similar to those of the second inner edge track B2C2, and the possible features of the second outer reference point track F1G1 are similar to those of the second outer edge track B1C1; the possible features of the third inner reference point track G2H2 are similar to those of the third inner edge track C2D2, and the possible features of the third outer reference point track G1H1 are similar to those of the third outer edge track C1D1.

[0119] The tangent directions of the second inner reference point track F2G2 and the second outer reference point track F1G1 are described in detail as follows:

[0120] Referring to Figure 6 and Figure 8A coordinate system is established with any point on the inner edge 122 of the door 12 in the closed state as the origin. The x-axis is a straight line passing through the origin, located on the first reference plane X, and perpendicular to the second reference plane Y. The y-axis is a straight line passing through the origin, located on the second reference plane Y, and perpendicular to the first reference plane X. The inner reference point R2 is taken as (-0.1t, 0.1t), (0, 0.1t), (0.1t, 0.1t), (-0.1t, 0), (0, 0), (0.1t, 0), (-0.1t, -0.1t), (0, -0.1t), (0.1t, 0.1t). The corresponding trajectory F2G2 of the second inner reference point is... Figure 8 The rows are arranged from left to right, starting from the first row.

[0121] As shown in the figure, the seventh angle between the tangent direction of the second inner reference point trajectory F2G2 and the first reference plane X gradually increases, and the change in the angle of each opening unit of the door 12 gradually increases.

[0122] Furthermore, the difference between the maximum and minimum values ​​of the seventh included angle is not less than 35 degrees.

[0123] See Figure 7 and Figure 9 A coordinate system is established with any point on the outer edge 121 of the door 12 in the closed state as the origin. The x-axis is a straight line passing through the origin, located on the third reference plane Z, and perpendicular to the second reference plane Y. The y-axis is a straight line passing through the origin, located on the second reference plane Y, and perpendicular to the third reference plane Z. The outer reference point R1 is taken as (-0.1t, 0.1t), (0, 0.1t), (0.1t, 0.1t), (-0.1t, 0), (0, 0), (0.1t, 0), (-0.1t, -0.1t), (0, -0.1t), (0.1t, 0.1t). The corresponding trajectory F1G1 of the second outer reference point is... Figure 9 The rows are arranged from left to right, starting from the first row.

[0124] As shown in the figure, the tangent direction of the trajectory F1G1 of the second external reference point is perpendicular to the first reference plane X, or it is set at an eighth included angle between 70 degrees and 110 degrees relative to the first reference plane X.

[0125] Furthermore, during the process of the door 12 opening from the first opening angle to the second opening angle, the eighth included angle remains unchanged or changes monotonically in a straight line, and the difference between the maximum and minimum values ​​of the eighth included angle is no greater than 10 degrees.

[0126] When the door body 12 is opened from the first opening angle to the second opening angle relative to the cabinet 11 under the action of the hinge assembly 13, the inner reference point R2 moves along the second inner reference point trajectory F2G2 towards the side of the opening of the second reference plane Y and away from the side of the opening of the first reference plane X, and the outer reference point R1 moves along the second outer reference point trajectory F1G1 towards the first reference plane X.

[0127] For the convenience of design, in a specific embodiment, the second outer reference point trajectory F1G1 is a straight line, arranged along the second reference plane Y or parallel to the second reference plane Y. The second inner reference point trajectory F2G2 is arranged such that the movement distance of the outer reference point on the second outer reference point trajectory and the rotation angle of the door body 12 satisfy the following formula:

[0128]

[0129] Wherein, θ1 is the rotation angle, t1 is the movement distance, and θ is a preset angle of 100-113 degrees.

[0130] Further, the application also alleviates the problem of the door body pressing the cabinet and exceeding the side of the cabinet assembly by limiting the movement trajectory of the edge on the door body. The relative movement of the door body and the cabinet can be converted into the movement trajectory of the edge on the door body in essence. By designing the movement trajectory of the edge, the relative movement relationship of the door body and the cabinet can be limited, i.e. the door body does not excessively press the door gap and the door body does not excessively exceed the side of the cabinet assembly. After designing the movement trajectory of the edge, the movement trajectory of the fixed point on the cabinet or the door body can be determined according to the movement trajectory of the edge, and the hinge assembly can be designed according to the movement trajectory of the fixed point. Thus, the movement trajectory of the edge and the hinge assembly with the movement trajectory of the edge in the application are within the protection scope of the application.

[0131] The application further provides a third embodiment, which is designed from another angle, i.e. the movement trajectory of the edge on the door body, compared to the first embodiment. Therefore, the figures and reference numbers in the first embodiment are continued to be used, and specific contents are continued to be referred to Figure 4 and Figure 5 .

[0132] The door body 12 in the embodiment has an outer edge 121 and an inner edge 122 on the pivot side. When the door body 12 is in the closed state relative to the cabinet 11, the inner edge 122 is closer to the cabinet 11 than the outer edge 121. In the embodiment, a second reference plane Y passing through the outer edge 121 in the closed state is further defined, and the second reference plane Y is arranged perpendicularly to the plane of the opening. A first reference plane X passing through the inner edge 122 in the closed state is further defined, and the first reference plane X is arranged parallel to the plane of the opening.

[0133] In the process that the door body 12 is opened to the first opening angle under the action of the hinge assembly 13, the outer edge 121 moves along the first outer edge track A1B1 to the first reference plane X, and the inner edge 122 moves along the first inner edge track A2B2 to the second reference plane Y. The first reference plane X and the second reference plane Y are fixed reference planes and do not move when the door body 12 moves. In the process that the door body 12 is opened, the final movement direction of the inner edge 122 relative to the second reference plane Y and the final movement direction of the outer edge 121 relative to the first reference plane X are the above-mentioned directions.

[0134] Further, in the movement of the outer edge 121 and the inner edge 122 in the respective directions, the curvature radius of the first outer edge track A1B1 is greater than or equal to 5t, and the distance beyond the second reference plane Y away from the opening side is less than or equal to the first predetermined distance d1; the curvature radius of the first inner edge track A2B2 is greater than or equal to 100t, and the distance beyond the first reference plane X toward the opening side is less than or equal to the second predetermined distance d2, where t is the thickness of the door body.

[0135] In the embodiment, the curvature radius of the movement track and the distance that the movement track can exceed the reference plane are limited, so that the edges can move smoothly and not exceed the predetermined range. Specifically, the minimum value of the curvature radius of the first outer edge track A1B1 and the minimum value of the curvature radius of the first inner edge track A2B2 are limited, that is, when the curvature radius is selected as the minimum value, the door body 12 cannot cause large extrusion to the cabinet 11, and the door body 12 cannot excessively exceed the side surface of the cabinet assembly. Moreover, when the curvature radius is selected as infinity, the track is a straight line, and in the case that both tracks are straight lines, the door body 12 can be opened to 90 degrees relative to the cabinet 11.

[0136] In the above limitation of the curvature radius, the curvature radius of the first outer edge track A1B1 is greater than or equal to 5t, and the curvature radius of the first inner edge track A2B2 is greater than or equal to 100t, with the thickness t of the door body as the reference standard. This is because the thickness t of the door body determines the movement degree of the door body 12 relative to the cabinet 11 when the door body 12 is opened. Obviously, the thicker the door body 12 is, the greater the curvature radius of the movement track is.

[0137] The related limitation of the first predetermined distance d1 determines the degree that the outer edge 121 can exceed the side surface of the cabinet assembly 100. In actual application, the outer edge 121 can be allowed to exceed the side surface of the cabinet assembly 100 to a certain degree, for example, for the embedded use of the cabinet assembly, there is a gap between the cabinet 11 and the wall in which the cabinet 11 is embedded, and the gap allows the outer edge 121 to exceed the side surface of the cabinet assembly 100 to a certain degree.

[0138] Similarly, the relevant limitation of the second preset distance d2 determines the degree of extrusion of the inner edge 122 to the box body 11. In actual application, a certain degree of extrusion of the inner edge 122 to the box body 11 can be allowed, for example, if a deformable door seal is arranged on the box body 11, the certain degree of extrusion of the inner edge 122 to the box body 11 can be ignored.

[0139] Therefore, the specific values of the first and second predetermined distances can be determined according to the actual product design needs, for example, the first predetermined distance can be determined according to the distance between the wall in which the box assembly is embedded and the box assembly, and the second distance can be determined according to the thickness or elasticity of the door seal on the box body. In the embodiment, the door body thickness is used as a scalar to limit the first and second predetermined distances to 0-0.15 times the door body thickness. If 0 times is selected, it is limited that the door body does not extrude the box body and does not exceed the side of the box assembly. In the embodiment, 0.1 times can be specifically selected, that is, the distance exceeding 0.1 times the door body thickness is allowed. The first and second predetermined distances can also be limited according to empirical values, that is, the first predetermined distance is 0-4 mm and the second predetermined distance is 0-2 mm. Similarly, if 0 mm is selected, it is limited that it will not exceed. In the embodiment, the first predetermined distance is 3 mm and the second predetermined distance is 1 mm, that is, the distance exceeding 1 mm is allowed.

[0140] In general, in the embodiment, in the process of the door body 12 from the state of being closed relative to the box body 11 to being opened to the first opening angle under the action of the hinge assembly 13, the inner edge 122 moves along the first inner edge trajectory A2B2, and the outer edge 121 moves along the first outer edge trajectory A1B1. The curvature radii of the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1 and the distance relationship thereof with the second reference plane Y and the first reference plane X all have certain characteristics. The door body 12 moves according to the trajectory, so that the extrusion of the door body 12 to the box body 11 and the exceeding of the door body 12 to the side of the box assembly 100 can be reduced or even avoided.

[0141] Further, in the embodiment, the terminal point B2 of the first inner edge trajectory A2B2 is located on the first reference plane X, or the terminal point B2 is located on the side away from the opening of the first reference plane X and the distance to the first reference plane X is less than or equal to 0.058t; the terminal point B1 of the first outer edge trajectory A1B1 is located on the second reference plane Y, or the terminal point B1 is located on the side toward the opening of the second reference plane Y and the distance to the second reference plane Y is less than or equal to 0.135t.

[0142] That is, after the door body 12 is opened to the first opening angle, the inner edge 122 of the door body 12 will not extrude the box body 11, and will not excessively move away from the box body 11; the outer edge 121 will not exceed the side of the box assembly 100, and will not excessively move toward the side of the opening of the second reference plane Y. Therefore, the door body 12 will not have a significant displacement problem when being opened, and the movement of the door body 12 is more stable.

[0143] In this embodiment, if the outer edge 121 of the door body 12 moves along the first outer edge track A1B1 and the inner edge 122 moves along the first inner edge track A2B2, the door body 12 cannot be opened to 90 degrees.

[0144] In order to meet the daily use requirements, the maximum opening angle of the door body 12 generally needs to be greater than 90 degrees, so after the door body 12 edge moves along the first edge track to an angle less than 90 degrees, other movement tracks can be used to make it be able to open more than 90 degrees. When the door body 12 is opened to an angle less than 90 degrees, the first outer edge track A1B1 is shorter than the first inner edge track A2B2, and the length ratio of the first inner edge track A2B2 to the first outer edge track A1B1 is 3.5-4.5.

[0145] As mentioned above, the door body 12 can move along another track after being opened to a first opening angle. In this embodiment, under the action of the hinge assembly 13, the outer edge 121 of the door body 12 moves along the second outer edge track B1C1 towards the first reference plane X, and the inner edge 122 moves along the second inner edge track B2C2 towards the second reference plane Y on the opening side and away from the opening side of the first reference plane X during the process of opening from the first opening angle to the second opening angle relative to the cabinet 11.

[0146] The inner edge 122 starts to move towards the second reference plane Y on the opening side, and the curvature radius of the movement track of the inner edge 122, the second inner edge track B2C2, gradually decreases, and the terminal point C2 is located on the side of the first reference plane X away from the opening, and the distance to the first reference plane is greater than or equal to 0.3t. So that the door body 12 has space to open a larger angle.

[0147] In this process, according to the design of the first outer edge track A1B1, the curvature radius of the second outer edge track B1C1 is greater than or equal to 5t, and the distance beyond the second reference plane Y away from the opening side is less than or equal to the first preset distance d1. According to the characteristics of the above track, during the opening process of the door body 12 from the first opening angle to the second opening angle, the door body 12 will not extrude the cabinet 11, nor will it excessively exceed the side surface of the cabinet assembly.

[0148] According to the above track characteristic analysis, the second outer edge track B1C1 is also continued from the first outer edge track A1B1, and the second inner edge track B2C2 is an arc with gradually decreasing curvature radius, which is set to facilitate subsequent opening of a larger angle and to make the door opening more smooth.

[0149] Similarly, by combining the first trajectory and the second trajectory, i.e., regarding A1C1 and A2C2 as a whole, the present application has another design idea, i.e., during the process that the door body 12 is opened from the first opening angle to the second opening angle relative to the cabinet 11, the inner edge 122 moves along the second inner edge trajectory towards the side of the opening of the second reference plane Y and away from the side of the opening of the first reference plane X, and the curvature radius of the second inner edge trajectory gradually decreases; the outer edge 121 moves along the second outer edge trajectory towards the first reference plane X, the curvature radius of the second outer edge trajectory is greater than or equal to 5t, and the distance of the second outer edge trajectory beyond the side of the opening away from the second reference plane is less than or equal to the first predetermined distance.

[0150] Here, the first opening angle can be the closing angle, and the second opening angle can be any angle. The second inner edge trajectory can be A2C2, and the second outer edge trajectory can be A1C1. The movement direction of the inner edge 122 along the second inner edge trajectory is away from the opening of the cabinet, which can avoid the door body pressing the cabinet; and the curvature radius of the second outer edge trajectory of the outer edge trajectory 121 is greater than or equal to 5t, and the distance of the second outer edge trajectory beyond the side of the opening away from the second reference plane is less than or equal to the first predetermined distance. According to the above analysis of the first outer edge trajectory, this feature can avoid the door body exceeding the side of the cabinet assembly.

[0151] In addition, in order to facilitate subsequent opening of the door body to a larger angle through other trajectories, the difference between the first opening angle and the second opening angle can be limited to 25-60 degrees.

[0152] Based on the above two design ideas, under the action of the hinge assembly 13, the door body 12 can also continue to be opened from the second opening angle to a third opening angle relative to the cabinet 11, and in this process, the inner edge 122 moves along the third inner edge trajectory C2D2 towards the side of the opening away from the first reference plane X, and the outer edge 121 moves along the third outer edge trajectory C1D1 towards the side of the opening towards the second reference plane Y. The trajectory of this movement direction also corresponds to a larger opening angle of the door body 12.

[0153] The third outer edge trajectory C1D1 and the third inner edge trajectory C2D2 are concentrically arranged circular arcs, the curvature radius of the third inner edge trajectory C2D2 is 0.55t-0.67t, and the curvature radius of the third outer edge trajectory C1D1 is 0.45t-0.55t.

[0154] After the edges of the door body 12 move along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, in order to achieve a larger opening angle, the edges can also directly move along the third outer edge trajectory C1D1 and the third inner edge trajectory C2D2, thereby solving the problems of pressing the cabinet 11 and exceeding the side of the cabinet assembly.

[0155] But after the hinge assembly 13 is designed according to the first trajectory and the third trajectory, when the door body 12 rotates through the hinge assembly 13, the door body 12 is prone to shaking during the rotation. In order to further optimize and solve the shaking problem, the second trajectory is added between the first trajectory and the third trajectory, so that the movement process of the door body 12 is more stable and smooth.

[0156] And considering the design of the hinge assembly 13, the ratio of the curvature radius of the third inner edge trajectory C2D2 to the third outer edge trajectory C1D1 is 1.22, which can prevent interference problems of the structure corresponding to the third trajectory on the hinge assembly 13.

[0157] Specifically, the design of the three-segment trajectory, the first opening angle corresponding to the first trajectory is 25-31 degrees, the second opening angle corresponding to the second trajectory is 57-60 degrees, and the third opening angle corresponding to the third trajectory is 122-132 degrees.

[0158] The length of the first inner edge trajectory A2B2 is 0.465t, and the length of the first outer edge trajectory A1B1 is 0.115t.

[0159] The length of the second outer edge trajectory B1C1 is 0.2285t, and the second inner edge trajectory B2C2 is set so that the movement distance of the outer edge 121 on the second outer edge trajectory B1C1 and the rotation angle of the door body 12 relative to the cabinet 11 satisfy the following formula:

[0160]

[0161] Wherein, θ1 is the rotation angle, which is a preset angle of 100-113 degrees, and t1 is the movement distance.

[0162] The center of the third inner edge trajectory C2D2 is located in the door body 12, and the curvature radius is 0.61t, and the center of the third outer edge trajectory C1D1 is located in the door body 12, and the curvature radius is 0.5t. The vertical distance from the center to the first reference plane X is 0.6t, and the vertical distance from the center to the second reference plane Y is 0.5t.

[0163] In actual design, considering the installation deformation and other problems, the reference point can be selected for trajectory design, so as to reserve tolerance for the edges on the door body 12, and avoid extrusion of the door body 12 to the cabinet 11 and beyond the side surface of the cabinet assembly 100.

[0164] Starting from the trajectory design of the instantaneous center of motion of the door body 12, based on the design principle of relative motion, various hinge assembly structures can be designed. For example Figures 11-13 As shown, Figure 11 is a structure schematic diagram of a fourth embodiment of the cabinet assembly of the present application, Figure 12 is Figure 11The schematic diagram shown is of the hinge shaft structure of the hinge assembly in the fourth embodiment of the housing assembly. Figure 13 yes Figure 11 The schematic diagram shows the hinge slot structure of the hinge assembly in the fourth embodiment of the housing assembly.

[0165] Compared to this fourth embodiment... Figure 1 The first embodiment shown only specifies the structure of the hinge assembly, so the reference numerals continue to be used in the first embodiment. In this embodiment, the hinge assembly 13 in the housing assembly 100 is designed to convert the motion trajectory of the instantaneous center of motion of the door 12 into the motion trajectory of two fixed points on the door 12 or the housing 11. Then, based on the motion trajectory of the two fixed points, a corresponding mechanical structure is designed. The hinge assembly 13 includes a first guide mechanism 135 and a second guide mechanism 136, which respectively realize the motion trajectory of the two fixed points. That is, the two guide mechanisms cooperate to make the edge of the door 12 move along the preset trajectory.

[0166] exist Figures 11-13 The guide mechanism is a slot-and-column mating structure. Clearly, the guide mechanism designed based on the trajectory can also be a linkage structure, a slot-and-column + linkage structure, etc.

[0167] In this embodiment, the hinge assembly 13 is a double-axis, double-groove type, with the double grooves located on the door body 12 and the double axes located on the housing 11. Similarly, in other embodiments, the double grooves can also be located on the housing 11 and the double axes can be located on the door body 12; or the door body 12 can have one axis and one groove, and the corresponding housing 11 can also have one axis and one groove; or as mentioned above, the axis and groove structure on the door body 12 and housing 11 can be transformed into a linkage structure, or an axis + track sliding structure, etc.

[0168] Specifically, in this embodiment, the hinge assembly 13 includes a first hinge shaft 131 and a second hinge shaft 132 disposed on the housing 11, and a first hinge groove 133 and a second hinge groove 134 disposed on the door body 12. The first hinge shaft 131 moves within the first hinge groove 133, forming a first guide mechanism 135; the second hinge shaft 132 moves within the second hinge groove 134, forming a second guide mechanism 136; thus achieving... Figure 3 The movement trajectory of the door edge shown solves the problem of the door 12 squeezing the box 11 and the problem of the door extending beyond the side of the box assembly 100.

[0169] During the opening of the door 12, the movement state of the hinge assembly 13 is as follows: Figures 14-18 , Figure 14 yes Figure 11 The diagram shows the state of the hinge assembly when the door is in the closed state relative to the box body in the fourth embodiment of the box body assembly. Figure 16 yes Figure 11Fig. 4 is a schematic view of the hinge assembly in the fourth embodiment of the cabinet assembly when the door body is opened to a first opening angle relative to the cabinet, Figure 17 is Figure 11 Fig. 5 is a schematic view of the hinge assembly in the fourth embodiment of the cabinet assembly when the door body is opened to a second opening angle relative to the cabinet, Figure 18 is Figure 11 Fig. 6 is a schematic view of the hinge assembly in the fourth embodiment of the cabinet assembly when the door body is opened to a third opening angle relative to the cabinet.

[0170] In this embodiment, the first hinge slot 133 includes a first slot segment 1331, a second slot segment 1332 and a third slot segment 1333, and the second hinge slot 134 includes a fourth slot segment 1341 and a fifth slot segment 1342.

[0171] When the door body 12 is opened to a first opening angle relative to the cabinet 11, the first hinge shaft 131 moves along the first slot segment 1331, and the second hinge shaft 132 moves along the fourth slot segment 1341, which correspondingly realizes the first trajectory in Figure 3 and Figure 4 .

[0172] When the door body 12 is opened to a second opening angle relative to the cabinet 11, the first hinge shaft 131 moves along the second slot segment 1332, and the second hinge shaft 132 moves along the fifth slot segment 1342, which correspondingly realizes the second trajectory in Figure 3 and Figure 4 .

[0173] When the door body 12 is opened to a third opening angle relative to the cabinet 11, the first hinge shaft 131 moves along the third slot segment 1333, and the second hinge shaft 132 does not change position at the bottom end of the fifth slot segment 1342, which correspondingly realizes the third trajectory in Figure 3 and Figure 4 .

[0174] In this embodiment, the first hinge slot 133 and the second hinge slot 134 have a tendency to separate from each other in the direction towards the first reference plane. The first slot segment 1331 deviates from the side of the second reference plane Y compared to the fourth slot segment 1341, and extends towards the first reference plane X and the second reference plane Y. The angle between the tangent direction of the first slot segment 1331 and the first reference plane X is greater than the angle between the tangent direction of the fourth slot segment 1341 and the first reference plane X.

[0175] The design of the hinge assembly 13 in this embodiment makes the door body 12 open smoothly and stably relative to the cabinet 11, and does not cause extrusion to the cabinet 11 or exceed the side of the cabinet assembly 100, which is convenient for embedded use.

[0176] From the trajectory design of the edge of the door body 12, based on the design principle of relative motion, various hinge assembly structures can also be designed to achieve stable and smooth opening of the door body 12 relative to the box body 11, and will not cause extrusion to the box body 11, nor will it exceed the side of the box assembly 100, facilitating embedded use. The specific hinge assembly structure is similar to the fourth embodiment, which will not be described here.

[0177] In summary, for the present application, corresponding to different motion trajectories of the door body edge, different hinge assemblies can be designed, which can all weaken the problem of extrusion of the box body and exceeding the side of the box assembly when the door body is opened. The above design of the box assembly can be applied to products with a door body and having the problem of extrusion of the box body and the problem of interference when exceeding the side of the box assembly, such as refrigerators, cabinets, etc.

[0178] The present application also proposes a refrigeration equipment, which comprises the above-mentioned box assembly 100, i.e. the door body 12, the box body 11 and the hinge assembly 13 between the door body 12 and the box body 11. The refrigeration equipment can be a refrigerator, a refrigerator, a wine cabinet, a fresh food cabinet, etc.

[0179] The terms "first", "second", "third" in the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or equipment including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or equipment.

[0180] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A box assembly, characterized in that, The box assembly comprises: a box for forming a containing space with an opening; a door for blocking the opening; a hinge assembly arranged to pivotally connect the box and the door at a pivot side of the box; wherein the door has an inner edge and an outer edge at the pivot side, the door is further provided with a first reference plane and a second reference plane, the first reference plane passes through the inner edge when the door is in a closed state and is parallel to the plane where the opening is located, the second reference plane passes through the outer edge when the door is in a closed state and is perpendicular to the plane where the opening is located, the first reference plane and the second reference plane remain stationary relative to the box during the opening of the door relative to the box; during the opening of the door relative to the box from the closed state to a first opening angle under the action of the hinge assembly, the instantaneous center of motion of the door moves along a first instantaneous center trajectory from the outer edge to the first reference plane, and simultaneously moves towards the side of the second reference plane facing the opening; during the opening of the door relative to the box from the first opening angle to a second opening angle under the action of the hinge assembly, the instantaneous center of motion moves along a second instantaneous center trajectory towards the first reference plane, and the tangent direction of the second instantaneous center trajectory and the first reference plane is between 85 degrees and 95 degrees; during the opening of the door relative to the box from the second opening angle to a third opening angle, the instantaneous center of motion remains unchanged as the end point of the second instantaneous center trajectory.

2. The box assembly of claim 1, wherein, The angle between the perpendicular line of the instantaneous center of motion and the inner edge and the first reference plane is between 85-95 degrees, and the angle between the perpendicular line of the instantaneous center of motion and the outer edge and the second reference plane is between 85-95 degrees.

3. The box assembly of claim 2, wherein, The perpendicular line of the instantaneous center of motion and the inner edge is perpendicular to the first reference plane, and the perpendicular line of the instantaneous center of motion and the outer edge is perpendicular to the second reference plane.

4. The box assembly of claim 3, wherein, The first instantaneous center trajectory is a circular arc, the center of the circular arc is located at the midpoint of the perpendicular line of the inner edge and the outer edge, and the diameter of the circular arc is the perpendicular distance between the inner edge and the outer edge.

5. The box assembly of claim 4, wherein, The angle between the line connecting the instantaneous center of motion and the center of the circular arc and the line connecting the center of the circular arc and the starting point of the first instantaneous center trajectory is equal to the actual opening angle of the door relative to the box.

6. The box assembly of claim 1, wherein, The second instantaneous center trajectory is a straight line and is arranged perpendicular to the first reference plane.

7. The box assembly of claim 1, wherein, During the opening of the door from the first opening angle to the second opening angle, the angle between the perpendicular line of the instantaneous center of motion and the outer edge and the second reference plane is between 85 degrees and 95 degrees, and the inner edge is located away from the second reference plane relative to the instantaneous center of motion.

8. The box assembly of claim 7, wherein, The perpendicular distance from the inner edge to the instantaneous center of motion gradually decreases.

9. The box assembly of claim 7, wherein, The perpendicular line of the instantaneous center of motion and the outer edge is perpendicular to the second reference plane.

10. The tank assembly of claim 1, wherein, The first opening angle is between 25 degrees and 31 degrees.

11. The tank assembly of claim 1, wherein, The second opening angle is between 57 and 60 degrees.

12. A refrigeration appliance characterized by, The refrigeration appliance includes the cabinet assembly of any of claims 1-11.

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