Box body assembly and freezer

Abstract

To relate to a box body assembly and a freezer.SOLUTION: A box body assembly of the present invention comprises a box body, and a door blocking an opening of the box body, and a hinge assembly. Therein the door is provided, on a pivot side, with: an inner edge; an outer edge; and a first reference plane that, when the door is in a closed state, passes through the inner edge and is parallel to a plane on which the opening is located, and a second reference plane that passes through the outer edge and is perpendicular to the plane on which the opening is located. In a process in which the door is opened from the closed state up to a first angle with respect to the box body, the inner edge moves toward a side of the second reference plane facing the opening, the outer edge moves toward the first reference plane, a curve radius of an inner edge track is not smaller than 100t, a distance extending beyond a side of the first reference plane facing the opening is not greater than a first distance, a curve radius of an outer edge track is not smaller than 5t, a distance extending beyond a side of the second reference plane opposite to the opening is not greater than a second distance, wherein t indicates a door thickness. In the present invention, a problem of the door pressing the door against the box body, and extending beyond a box body assembly side face when the door is opened, can be alleviated.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] This application claims priority to a Chinese patent application filed on February 9, 2021, with application number 2021101793640, entitled "BOX ASSEMBLY", and claims priority to a Chinese patent application filed on April 22, 2021, with application number 2021104383173, entitled "BOX ASSEMBLY AND REFRIGERATION APPARATUS", and claims priority to a Chinese patent application filed on April 22, 2021, with application number 2021104371227, entitled "BOX ASSEMBLY AND REFRIGERATION APPARATUS", and claims priority to a Chinese patent application filed on April 22, 2021, with application number 2021104371227, entitled "BOX ASSEMBLY AND REFRIGERATION APPARATUS". Claiming priority to a Chinese patent application filed on April 22, 2021, with application number 2021208441239 and titled "BOX ASSEMBLY AND REFRIGERATION APPARATUS", and claiming priority to a Chinese patent application filed on April 22, 2021, with application number 2021104383027 and titled "BOX ASSEMBLY AND REFRIGERATION APPARATUS", and claiming priority to a Chinese patent application filed on April 22, 2021, with application number 202120844146X and titled "BOX ASSEMBLY AND REFRIGERATION APPARATUS". The application claims priority to a Chinese patent application for the invention "BOX ASSEMBLY AND REFRIGERATION APPARATUS" filed on April 22, 2021 with application number 2021104383099 and claiming priority to a Chinese patent application for the invention "BOX ASSEMBLY AND REFRIGERATION APPARATUS" filed on April 22, 2021 with application number 2021208442871 and claiming priority to a Chinese patent application for the invention "BOX ASSEMBLY AND REFRIGERATION APPARATUS" filed on April 22, 2021 with application number 202110437127X ...83099 and claiming priority to a Chinese patent application for the invention "BOX ASSEMBLY AND REFRIGERATION APPARATUS" filed on April 22, 2021 with application number 2021208442871 and claiming priority to a Chinese patent application for the invention "BOX ASSEMBLY AND REFRIGERATION APPARATUS" Claims priority to Chinese patent application no. 2021208440804, entitled "BOX ASSEMBLY AND REFRIGERATION EQUIPMENT", filed on April 22, 2021, with application number 2021104382857, entitled "BOX ASSEMBLY AND REFRIGERATION EQUIPMENT", and claims priority to Chinese patent application no. 2021208441224, entitled "BOX ASSEMBLY AND REFRIGERATION EQUIPMENT", filed on April 22, 2021, with application number 2021208441224, entitled "BOX ASSEMBLY AND REFRIGERATION EQUIPMENT", all of which are incorporated herein by reference.

[0002] The present application relates to a box assembly and a refrigeration apparatus. [Background technology]

[0003] In a box assembly having a door and a box, when the door is opened against the box, there is a possibility that the door may press against the box and may extend beyond the side of the box assembly, which may lead to problems with damage to the box and interference with the installation environment of the box assembly. For example, when the box assembly is installed recessed, there is a risk of the part of the door extending beyond the side of the box assembly interfering with the recessed wall. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application provides a box assembly to solve the problem in the prior art that the door may be pushed against the box or go over the side of the box assembly during the process of opening the door. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present application provides: A box body having an opening for forming a storage space; A door for closing the opening; a hinge assembly provided on a pivot side of the box body so as to pivotally connect the box body and the door; the door has an inner edge and an outer edge on the pivot side, and the door is further provided with a first reference plane and a second reference plane, the first reference plane is parallel to the plane where the opening is located, the contour of the inner edge is located on the first reference plane when in a closed state, the first reference plane is perpendicular to the plane where the opening is located, the contour of the outer edge is located on the second reference plane when in the closed state, and the first reference plane and the second reference plane are stationary with respect to the box during the process of opening the door relative to the box; During a process in which the door is opened from the closed state to a first opening angle with respect to the box under the action of the hinge assembly, and during a process in which the door is opened from the first opening angle to a second opening angle with respect to the box under the action of the hinge assembly, the outer edge moves toward the first reference plane along a first outer edge trajectory and a second outer edge trajectory, respectively, a radius of curvature of the first outer edge trajectory and the second outer edge trajectory is not smaller than 5t, a distance that the first outer edge trajectory and the second outer edge trajectory extend beyond a side of the second reference plane opposite to the opening is not greater than a first predetermined distance, t is a thickness of the door, The present invention provides a box assembly, characterized in that, in the process of opening the door from the second opening angle to a third opening angle relative to the box under the action of the hinge assembly, the outer edge moves along a third outer edge trajectory toward the side of the second reference plane toward the opening, the third outer edge trajectory being an arc with a radius of curvature of 0.45t-0.55t, and the center of the third outer edge is within the door.

[0006] In the case assembly of the present application, the door and the case are pivotally connected by a hinge assembly, and problems may occur in that the door presses against the case or exceeds the side surface of the case assembly. Therefore, in the present application, the movement path of the inner edge pressing against the case and the movement path of the outer edge exceeding the side surface of the case assembly are limited in the process in which the door is opened from a closed state to a first angle with respect to the case under the action of the hinge assembly.

[0007] Specifically, in order to make it easier to describe the characteristics of the movement trajectory, a first reference plane of the door is defined as passing through the inner edge when in the closed state and parallel to the plane where the box opening is located, and a second reference plane of the door is defined as passing through the outer edge when in the closed state and perpendicular to the plane where the box opening is located.

[0008] To reduce problems with the door pressing against the box or overhanging the box assembly side, the inner edge moves toward the second reference plane toward the opening and the outer edge moves toward the first reference plane, a first inner edge path of the inner edge has a radius of curvature not smaller than 100t and a distance that the first inner edge path extends beyond the first reference plane toward the opening is not greater than a second predetermined distance, a first outer edge path of the outer edge has a radius of curvature not smaller than 5t and a distance that the first outer edge movement path extends beyond the second reference plane away from the opening is not greater than a first predetermined distance, where t is the door thickness.

[0009] In order to more clearly describe the technical means in the embodiments of the present application, the drawings necessary for describing the embodiments are briefly described below. Of course, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a schematic diagram of the structure of a first embodiment of the box assembly of the present application. [Diagram 2] FIG. 1 is a schematic diagram of the movement relationship of a door to a box in a conventional box assembly. [Diagram 3] FIG. 2 is a schematic diagram of the movement trajectory of an edge in the first embodiment of the box assembly shown in FIG. 1; [Figure 4] 2 is a schematic diagram of the opening angle of the door relative to the box and the edge movement trajectory in the first embodiment of the box assembly shown in FIG. 1. [Diagram 5] 2 is a schematic diagram of a movement trajectory of a reference point in the first embodiment of the box assembly shown in FIG. 1. [Figure 6] FIG. 2 is a schematic diagram of a selection range of an internal reference point in the first embodiment of the box assembly shown in FIG. 1. [Figure 7] FIG. 2 is a schematic diagram of a selection range of an outer reference point in the first embodiment of the box assembly shown in FIG. 1. [Figure 8] 1. FIG. 4 is a schematic diagram of a tangential angle of a locus of an internal reference point in the second embodiment of the box assembly shown in FIG. [Figure 9]FIG. 2 is a schematic diagram of the tangential angle of the trajectory of the external reference point in the second embodiment of the box assembly shown in FIG. 1. [Figure 10] FIG. 2 is a schematic diagram of an instantaneous center locus of the door movement instantaneous center in the third embodiment of the box assembly shown in FIG. 1. [Figure 11] FIG. 13 is a schematic diagram of the structure of a fourth embodiment of the box assembly of the present application. [Figure 12] 12 is a schematic diagram of a hinge shaft structure of a hinge assembly in the fourth embodiment of the box assembly shown in FIG. 11. FIG. [Figure 13] 12 is a schematic diagram of a hinge groove structure of a hinge assembly in the fourth embodiment of the box assembly shown in FIG. 11. FIG. [Figure 14] 12 is a schematic diagram of a state of a hinge assembly when a door is in a closed state relative to a box in the fourth embodiment of the box assembly shown in FIG. 11. FIG. [Figure 15] 12 is a schematic diagram of a state of the hinge assembly when the door is opened to a first opening angle relative to the box in the fourth embodiment of the box assembly shown in FIG. 11. FIG. [Figure 16] 12 is a schematic diagram of a state of the hinge assembly when the door is opened to a second opening angle relative to the box in the fourth embodiment of the box assembly shown in FIG. 11. FIG. [Figure 17] 12 is a schematic diagram of a state of the hinge assembly when the door is opened to a third opening angle relative to the box in the fourth embodiment of the box assembly shown in FIG. 11. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The technical solutions in the embodiments of the present application are described below clearly and completely with reference to the drawings in the embodiments of the present application, and of course the described embodiments are not all the embodiments, but only some of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present application.

[0012] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. It is understood that the specific embodiments described herein are only for the purpose of interpreting the present application, and are not intended to limit the present application. In addition, it should be noted that for the convenience of explanation, the drawings show only some structures related to the present application, not all structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0013] Please refer to Fig. 1, which is a schematic diagram of the structure of a first embodiment of the box assembly of the present application. The box assembly 100 of this embodiment includes a box 11, a door 12, and a hinge assembly 13. The box 11 has a storage space formed therein, the storage space is provided with an opening, the door 12 is used for opening and closing, and the hinge assembly 13 is provided on the pivot side of the box 11 to pivotally connect the door 12 and the box 11, so that the door 12 can be opened and closed relative to the box 11 under the action of the hinge assembly 13.

[0014] There are various types of hinge assemblies that realize the relative rotation of the door and the box, and the relative movement relationship between the door and the box is determined by the installation of the hinge assembly. In the case of a box assembly 900 in the prior art, as shown in FIG. 2, FIG. 2 is a schematic diagram of the movement relationship of the door to the box in the prior art box assembly. Here, when the door 92 is opened to a certain angle, there is a problem that the door 92 presses against the box 91 or exceeds the side of the box assembly 900, and the side of the box assembly 900 may be the side of the box 91 or the side of the door 92 in the closed state, and it goes without saying that the hinge assembly 93 in the prior art cannot solve the technical problem of the present application.

[0015] In this application, the edge motion trajectory of the door is limited to alleviate the problem of the door pressing against the box or exceeding the side of the box assembly. Based on the principle of relative motion calculation, the edge motion trajectory can determine the relative motion relationship between the door and the box, and then the motion trajectory of the fixed point on the box or the door can be determined, and the hinge assembly can then be inversely estimated and designed based on the motion trajectory of the fixed point. Therefore, it can be realized that all hinge assemblies with edge motion trajectories in this application are included in the protection scope of this application.

[0016] Please refer specifically to Figures 3 and 4. Figure 3 is a schematic diagram of the edge movement trajectory in the first embodiment of the box assembly shown in Figure 1, and Figure 4 is a schematic diagram of the opening angle of the door relative to the box and the edge movement trajectory in the first embodiment of the box assembly shown in Figure 1.

[0017] In this embodiment, the door 12 has an outer edge 121 and an inner edge 122 on the pivot side, and when the door 12 is in a closed state relative to the box 11, the inner edge 122 is closer to the box 11 than the outer edge 121. In this embodiment, a second reference plane Y is further defined, which passes through the outer edge 121 in the closed state and is perpendicular to the plane where the opening is located. The contour of the outer edge 121 is located on the second reference plane Y in the closed state. Furthermore, a first reference plane X is defined, which passes through the inner edge 122 in the closed state and is parallel to the plane where the opening is located. The contour of the inner edge 122 is located on the first reference plane X in the closed state.

[0018] In the process of opening the door 12 from a closed state relative to the box 11 to a first open angle under the action of the hinge assembly 13 (i.e., the door 12 is opened to a position of the first open angle relative to the box 11), the outer edge 121 moves along the first outer edge trajectory A1B1 toward the first reference plane X, and the inner edge 122 moves along the first inner edge trajectory A2B2 toward the opening side of the second reference plane Y. The first reference plane X and the second reference plane Y are fixed reference planes that do not move with the movement of the door 12. Under the pivotal relationship between the door 12 and the box 11, in the process of opening the door 12, 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 always the above-mentioned directions.

[0019] Furthermore, in the movement of the outer edge 121 and the inner edge 122 in their respective directions, the radius of curvature of the first outer edge trajectory A1B1 is 5t or more, and the distance extending beyond the side of the second reference plane Y opposite the opening is less than or equal to the first predetermined distance d1, and the radius of curvature of the first inner edge trajectory A2B2 is 100t or more, and the distance extending beyond the side of the first reference plane X toward the opening is less than or equal to the second predetermined distance d2, where t is the thickness of the door.

[0020] In this embodiment, the radius of curvature of the movement trajectory and the distance that the movement trajectory can exceed the reference plane are limited to ensure that the edge moves stably without exceeding the predetermined range. Specifically, the minimum value of the radius of curvature of the first outer edge trajectory A1B1 and the minimum value of the radius of curvature of the first inner edge trajectory A2B2 are limited, that is, when the minimum value is selected as the radius of curvature, it can be ensured that the door 12 does not press too hard against the box 11 or excessively exceed the side of the box assembly. In addition, when the radius of curvature is selected to be infinite, the trajectory becomes a straight line, and when both trajectories are straight lines, the door 12 can correspondingly open up to 90 degrees with respect to the box 11.

[0021] In the above, when the radius of curvature is limited, the door thickness t is used as a reference standard, and the radius of curvature of the first outer edge trajectory A1B1 is 5t or more, and the radius of curvature of the first inner edge trajectory A2B2 is 100t or more. This is because the degree of movement when the door 12 is opened relative to the box body 11 depends on the door thickness t, and it goes without saying that the thicker the door 12 is, the larger the radius of curvature of the movement trajectory. Specifically, the door thickness is at least 2 centimeters.

[0022] The relevant limitation of the first predetermined distance d1 determines the degree to which the outer edge 121 can extend beyond the side of the box assembly 100, and in practical applications, it is acceptable for the outer edge 121 to extend beyond the side of the box assembly 100 to a certain extent; for example, when the box assembly 100 is used in an embedded state, there is a certain gap between the box 11 and the wall in which it is embedded (i.e., the wall in which the box assembly 100 is embedded), and this gap allows the outer edge 121 to extend beyond the side of the box assembly 100 to a certain extent.

[0023] Similarly, the relevant limitation of the second predetermined distance d2 determines the degree to which the inner edge 122 can press against the box body 11, and in practical applications, it is acceptable for the inner edge 122 to press against the box body 11 to a certain extent, and for example, if the box body 11 is equipped with a deformable door seal, the certain degree of pressing by the inner edge 122 against the box body 11 can be ignored.

[0024] Therefore, the specific values ​​of the first and second scheduled distances can be determined according to the actual product design requirements. For example, the first scheduled distance can be determined according to the distance between the wall for embedding the box assembly and the box assembly, and the second scheduled distance can be determined according to the thickness or elasticity of the door seal of the box. In this embodiment, the door thickness is used as a standard, and the first and second scheduled distances are limited to 0 to 0.15 times the door thickness. If 0 times is selected, the door is limited so as not to press the box body or exceed the side of the box assembly. In this embodiment, 0.1 times can be specifically selected, that is, the distance is allowed to exceed 0.1 times the door thickness. The distances may be limited according to empirical values, and the first scheduled distance is set to 0 mm to 4 mm and the second scheduled distance is set to 0 mm to 2 mm. Similarly, if 0 mm is selected for both, the distances are limited so as not to exceed. In this embodiment, the first scheduled distance is 3 mm and the second scheduled distance is 1 mm, that is, the allowable excess distance.

[0025] Generally speaking, in this embodiment, in the process of opening the door 12 from the closed state to the first open angle relative to the box 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. Here, the radii of curvature of the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, as well as the distance relationship between the second reference plane Y and the first reference plane X, all have certain characteristics, and the door 12 moves along this trajectory, which reduces or in severe cases prevents the door 12 from pressing against the box 11 or going beyond the side of the box assembly 100.

[0026] Furthermore, in this embodiment, the end point B2 of the first inner edge path A2B2 is on the first reference plane X, or on the side of the first reference plane X opposite the opening, and the distance to the first reference plane X is 0.058t or less. The end point B1 of the first outer edge path A1B1 is on the second reference plane Y, or on the side of the second reference plane Y facing the opening, and the distance to the second reference plane Y is 0.135t or less.

[0027] That is, after the door 12 is opened to the first opening angle, the inner edge 122 of the door 12 does not press against the box 11 or move excessively away from the box 11. The outer edge 121 does not exceed the side of the box assembly 100 or move excessively toward the opening of the second reference plane Y. As a result, no significant displacement problem occurs when the door 12 is opened, and the movement of the door 12 becomes more stable.

[0028] In this embodiment, when the outer edge 121 of the door 12 moves along the first outer edge trajectory A1B1 and the inner edge 122 moves along the first inner edge trajectory A2B2 and the door 12 is opened to 90 degrees, the door 12 may not be able to continue opening.

[0029] In order to meet the requirements of daily use, the maximum opening angle of the door 12 generally needs to be greater than 90 degrees, so the edge of the door 12 moves along a first edge trajectory so that the door 12 opens less than 90 degrees, and then another movement trajectory may be adopted so that the door 12 opens more than 90 degrees. When the door 12 opens less than 90 degrees, the first outer edge trajectory A1B1 is shorter than the first inner edge trajectory A2B2, and the length ratio of the first inner edge trajectory A2B2 to the first outer edge trajectory A1B1 is 3.5 to 4.5.

[0030] As described above, the door 12 may move along another trajectory after being opened to the first opening angle. In this embodiment, when the door 12 is opened from the first opening angle to the second opening angle with respect to the box 11 under the action of the hinge assembly 13, the outer edge 121 moves along the second outer edge trajectory B1C1 toward the first reference plane X, and the inner edge 122 moves along the second inner edge trajectory B2C2 toward the side of the second reference plane Y toward the opening and toward the side of the first reference plane X away from the opening.

[0031] When the inner edge 122 starts to move toward the opening of the second reference plane Y, the third included angle between the tangent direction of the second inner edge movement trajectory B2C2 of the inner edge 122 and the first reference plane X gradually increases, and gradually increases corresponding to the change width of each opening unit angle of the door 12, and its end point C2 is on the opposite side of the first reference plane X from the opening, so that the door 12 has a space to open to a larger angle.

[0032] At the same time, based on the design of the first outer edge path A1B1, the tangent direction of the second outer edge path B1C1 is set perpendicular to the first reference plane X, or inclined relative to the first reference plane X at a fourth included angle between 70 degrees and 110 degrees.

[0033] According to the above-mentioned trajectory characteristics, the door 12 does not press against the box body 11 or go beyond the side surface of the box body 11 excessively in the process of opening from the first opening angle to the second opening angle.

[0034] Furthermore, during the process of opening the door 12 from the first opening angle to the second opening angle, the fourth included angle does not change, that is, the second outer edge trajectory B1C1 is a straight line, or the fourth included angle changes monotonically in a linear form and the second outer edge trajectory B1C1 is an arc line, and the outer edge 121 moves smoothly along the straight or arc line-shaped second outer edge trajectory B1C1.

[0035] In addition, the difference between the maximum and minimum values ​​of the fourth included angle is less than 10 degrees, that is, the second outer edge trajectory B1C1 is generally flat, further ensuring the smooth movement of the outer edge 121 along the second outer edge trajectory B1C1.

[0036] Similarly, in the process of opening the door 12 from the first opening angle to the second opening angle, the third included angle gradually increases, that is, the second inner edge trajectory B2C2 becomes an arc, and the inner edge 122 moves smoothly along the arc-shaped second inner edge trajectory B2C2. In addition, the difference between the maximum and minimum values ​​of the third included angle is greater than or equal to 35 degrees, and the second inner edge trajectory B2C2 is generally flat, which further ensures the smooth movement of the inner edge 122 along the second inner edge trajectory B2C2.

[0037] In this way, the door 12 moves smoothly as it is opened from the first opening angle to the second opening angle, and the door 12 as a whole avoids a situation where it slides improperly.

[0038] Furthermore, the inner edge 122 starts to move toward the opening of the second reference plane Y, the movement locus of the inner edge 122 is an arc, the radius of curvature of the second inner edge locus B2C2 gradually decreases, and its end point C2 is on the opposite side of the opening of the first reference plane X and the distance to the first reference plane is 0.3t or more, so that the door 12 has space to open to a larger angle.

[0039] In this process, according to the design of the first outer edge trajectory A1B1, the radius of curvature of the second outer edge trajectory B1C1 is equal to or greater than 5t, and the distance that the second outer edge trajectory B1C1 extends beyond the second reference plane Y on the opposite side of the opening is equal to or less than the first predetermined distance d1. Due to the characteristics of the above trajectories, the door 12 does not press against the box 11 or excessively extend beyond the side of the box assembly during the opening process from the first opening angle to the second opening angle.

[0040] According to the above analysis of the trajectory characteristics, the second outer edge trajectory B1C1 also follows the first outer edge trajectory A1B1, and the second inner edge trajectory B2C2 is an arc with a gradually decreasing radius of curvature, which is installed to open at a larger angle later and make the door opening smoother.

[0041] For the same reason, when the first and second trajectories are taken together, i.e., A1C1 and A2C2 are considered as one unit, the present application has another design concept, that is, in the process of opening the door 12 from the first opening angle to the second opening angle relative to the box body 11, the inner edge 122 moves along the second inner edge trajectory B2C2 toward the side toward the opening of the second reference plane Y and toward the side opposite to the opening of the first reference plane X, and the radius of curvature of the second inner edge trajectory B2C2 gradually becomes smaller, and the outer edge 121 moves along the second outer edge trajectory B1C1 toward the first reference plane X, and the radius of curvature of the second outer edge trajectory is 5t or more, and the distance that the second outer edge trajectory B1C1 extends beyond the side opposite to the opening of the second reference plane Y is equal to or less than the first predetermined distance.

[0042] Here, the first opening angle may be the door closing angle, and the second opening angle may be any angle. The second inner edge trajectory may be A2C2, and the second outer edge trajectory is A1C1. Here, the movement direction of the inner edge 122 along the second inner edge trajectory is a direction away from the box opening, so that the door can be prevented from pressing the box. The second outer edge trajectory curvature radius of the outer edge trajectory 121 is equal to or greater than 5t, and the distance beyond the side of the second reference plane opposite to the opening is equal to or less than the first predetermined distance. According to the above analysis of the first outer edge trajectory, this characteristic can prevent the door from exceeding the side of the box assembly.

[0043] In addition, in order to later open the door to a larger angle by another trajectory, the difference between the first and second opening angles may be limited to 25 degrees to 60 degrees.

[0044] Based on the above two design concepts, under the action of the hinge assembly 13, the door 12 can be further opened relative to the box 11 from the second opening angle to a third opening angle, during which the inner edge 122 moves along the third inner edge trajectory C2D2 toward the side away from the opening on the first reference plane X, and the outer edge 121 moves along the third outer edge trajectory C1D1 toward the opening on the second reference plane Y. This trajectory of the movement direction corresponds to a larger opening angle of the door 12.

[0045] The third outer edge locus C1D1 and the third inner edge locus C2D2 are specifically arcs that are concentrically arranged, the third inner edge locus C2D2 has a radius of curvature of 0.55t to 0.67t, and the third outer edge locus C1D1 has a radius of curvature of 0.45t to 0.55t.

[0046] After the edge of the door 12 moves along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, it may directly move along the third outer edge trajectory C1D1 and the third inner edge trajectory C2D2 to achieve a larger door opening angle, thereby solving the problem of the door 12 pressing against the box 11 or going beyond the side of the box assembly.

[0047] However, after the hinge assembly 13 is designed to add the third track to the first track, when the door 12 realizes rotation through the hinge assembly 13, the shaking phenomenon is likely to occur during the rotation process. In order to further optimize and solve the shaking problem, the second track is added between the first track and the third track, so that the movement process of the door 12 is more stable and smooth.

[0048] In addition, when considering the design of the hinge assembly 13, the ratio of the radius of curvature of the third inner edge locus C2D2 to the third outer edge locus C1D1 is set to 1.22, so that interference problems can be prevented from occurring in the structure corresponding to the third locus in the hinge assembly 13.

[0049] Specifically, in the design of the three-part trajectory, the first opening angle corresponding to the first trajectory is 25 degrees to 31 degrees, the second opening angle corresponding to the second trajectory is 57 degrees to 60 degrees, and the third opening angle corresponding to the third trajectory is 122 degrees to 132 degrees.

[0050] The length of the first inner edge path A2B2 is 0.465t, and the length of the first outer edge path A1B1 is 0.115t.

[0051] 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 12 relative to the box body 11 satisfy the following formula:

number

[0052] The third inner edge locus C2D2 has a circle center inside the door 12 and a radius of curvature of 0.61t, and the third outer edge locus C1D1 has a circle center inside the door 12 and a radius of curvature of 0.5t. The perpendicular distance of the circle center to the first reference plane X is 0.6t, and the perpendicular distance to the second reference plane Y is 0.5t.

[0053] When actually designing, taking into consideration issues such as installation deformation, a reference point can be selected to perform trajectory design, and a tolerance can be left for the edge of the door 12 in advance, thereby ensuring that the door 12 does not press against the box 11 or exceed the side of the box assembly 100.

[0054] As shown in Figures 5, 6 and 7, Figure 5 is a schematic diagram of the movement trajectory of the reference point in the first embodiment of the box body assembly shown in Figure 1, Figure 6 is a schematic diagram of the selection range of the internal reference point in the first embodiment of the box body assembly shown in Figure 1, and Figure 7 is a schematic diagram of the selection range of the external reference point in the first embodiment of the box body assembly shown in Figure 1.

[0055] In this embodiment, there is provided an outer reference point R1 located adjacent to the outer edge 121 and an inner reference point R2 located adjacent to the inner edge 122. First, a third reference plane Z is defined, the third reference plane Z is parallel to the first reference plane X, and the contour of the outer edge 121 is located on the third reference plane Z when in the closed state.

[0056] Specifically, the vertical distances of the internal reference point R2 to both the second reference plane Y and the first reference plane X are 0.1t or less. The selection range of the internal reference point R2 is a rectangular area with the inner edge 122 at its center and the sides having a length of 0.2t.

[0057] Similarly, the vertical distances of the outer reference point R1 to the second reference plane Y and the third reference plane Z are both 0.1t or less. The selection range of the outer reference point R1 is a rectangular area with the outer edge 121 as the center and the side length being 0.2t.

[0058] The outer reference point R1 may be on the outer edge 121 and the inner reference point R2 may be on the inner edge 122.

[0059] The trajectory design concept of the internal reference point R2 and the external reference point R1 is also based on the above-mentioned trajectory design concept of the inner edge 122 and the outer edge 121, and as the door 12 is opened from the closed state to the first opening angle relative to the box body 11 under the action of the hinge assembly 13, the internal reference point R2 moves along the first internal reference point trajectory E2F2 toward the opening of the second reference plane Y, and the external reference point R1 moves along the first external reference point trajectory E1F1 toward the first reference plane X.

[0060] All possible characteristics of the first internal reference point locus E2F2 are similar to those of the first internal edge locus A2B2, and all possible characteristics of the first external reference point locus E1F1 are similar to those of the first external edge locus A1B1, and detailed descriptions thereof will be omitted.

[0061] For ease of design, in this embodiment, the first internal reference point locus E2F2 is a straight line, and the first external reference point locus E1F1 is a straight line. Depending on the selected position of the internal reference point R2, the first internal reference point locus E2F2 may be parallel to the first reference plane X or may be aligned along the first reference plane X, and depending on the selected position of the external reference point R1, the first external reference point locus is parallel to the second reference plane Y or aligned along the second reference plane Y.

[0062] Furthermore, the first internal reference point locus E2F2 is longer than the first external reference point locus E1F1, and the ratio of the length of the first internal reference point locus E2F2 to the length of the first external reference point locus E1F1 is 3.5 to 4.5.

[0063] Similarly, the external reference point R1 and the internal reference point R2 can both generate second and third loci, corresponding to the internal edge 122 and the external edge 121. Here, the possible characteristics of the second internal reference point locus F2G2 are similar to the second internal edge locus B2C2, the possible characteristics of the second external reference point locus F1G1 are similar to the second external edge locus B1C1, the possible characteristics of the third internal reference point locus G2H2 are similar to the third internal edge locus C2D2, and the possible characteristics of the third external reference point locus G1H1 are similar to the third external edge locus C1D1.

[0064] As the door 12 is opened from the first opening angle to the second opening angle relative to the box body 11, the internal reference point R2 moves along the second internal reference point trajectory F2G2 toward the opening in the second reference plane Y and toward the opposite side to the opening in the first reference plane X, and the external reference point R1 moves along the second external reference point trajectory F1G1 toward the first reference plane X.

[0065] Here, for ease of design, the second external reference point trajectory F1G1 is a straight line and is provided along the second reference plane Y or is provided parallel to the second reference plane Y. The second internal reference point trajectory F2G2 is provided so that the movement distance of the external reference point R1 on the second external reference point trajectory F1G1 and the rotation angle of the door 12 satisfy the following formula:

number

[0066] In addition, the present application further restricts the tangential direction of the edge motion locus of the door, thereby alleviating the problem of the door pressing against the box or exceeding the side of the box assembly. The relative motion of the door and the box can be converted into a tangential motion of the motion locus in terms of the nature of the motion, and the tangential motion locus of the edge motion locus can be designed to restrict the relative motion relationship between the door and the box, that is, to restrict the door from excessively pressing against the door seal or excessively exceeding the side of the box assembly. Then, the tangential motion locus of the edge motion locus can be used to determine the motion locus of the fixed point on the box or the door, and the motion locus of the fixed point can then be used to reverse-estimate and design the hinge assembly. Therefore, it can be realized that all hinge assemblies having the edge motion locus in the present application are included in the scope of protection of the present application.

[0067] The second embodiment differs from the first embodiment only in that the door edge movement locus is designed from a different angle, i.e., the tangential direction of the locus, so the drawings and symbols of the first embodiment are still used. Please refer to Figures 3 and 4 in particular. Figure 3 is a schematic diagram of the edge movement locus in the first embodiment of the box assembly shown in Figure 1, and Figure 4 is a schematic diagram of the opening angle of the door relative to the box and the edge movement locus in the first embodiment of the box assembly shown in Figure 1.

[0068] Furthermore, the tangent direction of the first outer edge locus A1B1 is perpendicular to the first reference plane X or is inclined relative to the first reference plane X at a second included angle gradually approaching 90 degrees, and the tangent direction of the first inner edge locus A2B2 is along the first reference plane X or is inclined relative to the first reference plane X at a first included angle of less than 10 degrees.

[0069] In this embodiment, the tangential direction of the motion trajectory is limited, and the ratio of the length of the first inner edge trajectory A2B2 to the length of the first outer edge trajectory A1BA is limited, thereby ensuring that the edge moves stably without exceeding the predetermined range.

[0070] Here, when the tangent direction of the first outer edge trajectory A1B1 is inclined with respect to the first reference plane X at a second included angle gradually approaching 90 degrees, it can be ensured that the door 12 does not press the box body 11 too much. When the first included angle of the tangent direction of the first inner edge trajectory A2B2 with respect to the first reference plane X is a maximum value of 10 degrees, it can be ensured that the door 12 does not exceed the side surface of the box body 11 excessively.

[0071] In addition, when the tangent direction of the first outer edge locus A1B1 is perpendicular to the first reference plane X and the tangent direction of the first inner edge locus A2B2 is arranged along the first reference plane X, the two loci become straight lines, and correspondingly, when both loci become straight lines, the first opening angle can reach a maximum of 90 degrees, in such a case, the first inner edge locus A2B2 is longer than the first outer edge locus A1B1, and the ratio of the length of the first inner edge locus A2B2 to the length of the first outer edge locus A1B1 is 3.5 to 4.5.

[0072] The tangential association constraint of the first inner edge trajectory A2B2 determines the degree to which the inner edge 122 can press against the box body 11, and in practical applications, it is acceptable for the inner edge 122 to press against the box body 11 to a certain extent; for example, if the box body 11 is equipped with a deformable door seal, the certain degree of pressing by the inner edge 122 against the box body 11 can be ignored.

[0073] Similarly, the tangential relational limitation of the first outer edge locus A1B1 determines the degree to which the outer edge 121 can extend beyond the side of the box 11, and in practical applications, it is acceptable for the outer edge to extend beyond the side of the box 11 to a certain extent; for example, when the box assembly is used in an embedded manner, there is a certain gap between the box 11 and the wall into which it is embedded, and this gap allows the outer edge 121 to extend beyond the side of the box 11 to a certain extent.

[0074] Furthermore, during the process of the door 12 being opened from the closed state to the first open angle, the first included angle does not change, that is, the first inner edge trajectory A2B2 is a straight line, or the first included angle changes monotonically in a linear form, the first inner edge trajectory A2B2 is an arc line, and the inner edge 122 moves smoothly along the straight or arc line-shaped first inner edge trajectory A2B2.

[0075] In addition, the difference between the maximum and minimum values ​​of the first included angle is less than 5 degrees, that is, the first inner edge path A2B2 is generally flat, further ensuring the smooth movement of the inner edge 122 along the first inner edge path A2B2.

[0076] Similarly, in the process of opening the door 12 from the closed state to the first opening angle, the second included angle does not change, i.e., the first outer edge trajectory A1B1 becomes a straight line, or the second included angle gradually approaches 90 degrees, i.e., the first outer edge trajectory A1B1 becomes an arc line, and the outer edge 121 moves smoothly along the straight or arc-shaped first outer edge trajectory A1B1.

[0077] Therefore, the door 12 moves smoothly as a whole in the process of opening to the first opening angle, and the situation of the door 12 sliding irregularly is avoided.

[0078] Furthermore, the inner edge 122 starts to move toward the opening of the second reference plane Y, and the radius of curvature of the second inner edge trajectory B2C2, which is the trajectory of the inner edge 122, gradually becomes smaller, and its end point C2 is on the opposite side of the first reference plane X from the opening and the distance to the first reference plane X is 0.3t or more. This allows the door 12 to have space to open to a larger angle.

[0079] In this process, the first outer edge path A1B1 is designed so that the radius of curvature of the second outer edge path B1C1 is 5t or more, and the distance beyond the side of the second reference plane Y opposite the opening is less than the first predetermined distance d1.

[0080] According to the above trajectory characteristics, in the process of opening the door 12 from the first opening angle to the second opening angle, the door 12 does not press against the box 11 or excessively exceed the side surface of the box assembly.

[0081] Under the action of the hinge assembly 13, the door 12 can be further opened relative to the box 11 from the second opening angle to a third opening angle, during which the inner edge 122 moves along a third inner edge trajectory C2D2 toward the side away from the opening in the first reference plane X, and the outer edge 121 moves along a third outer edge trajectory C1D1 toward the opening in the second reference plane Y. This trajectory of the movement direction corresponds to a larger opening angle of the door 12.

[0082] The third outer edge locus C1D1 and the third inner edge locus C2D2 are specifically arcs that are concentrically arranged, the third inner edge locus C2D2 has a radius of curvature of 0.55t to 0.67t, and the third outer edge locus C1D1 has a radius of curvature of 0.45t to 0.55t.

[0083] After the edge of the door 12 moves along the first inner edge trajectory A2B2 and the first outer edge trajectory A1B1, it may directly move along the third outer edge trajectory C1D1 and the third inner edge trajectory C2D2 to achieve a larger door opening angle, thereby solving the problem of the door 12 pressing against the box 11 or going beyond the side of the box assembly.

[0084] However, after the hinge assembly 13 is designed to add the third track to the first track, when the door 12 realizes rotation through the hinge assembly 13, the shaking phenomenon is likely to occur during the rotation process. In order to further optimize and solve the shaking problem, the second track is added between the first track and the third track, so that the movement process of the door 12 is more stable and smooth.

[0085] In addition, when considering the design of the hinge assembly 13, the ratio of the radius of curvature of the third inner edge locus C2D2 to the third outer edge locus C1D1 is set to 1.22, so that interference problems can be prevented from occurring in the structure corresponding to the third locus in the hinge assembly 13.

[0086] Specifically, in the design of the three-part trajectory, the first opening angle corresponding to the first trajectory is 25 degrees to 31 degrees, the second opening angle corresponding to the second trajectory is 57 degrees to 60 degrees, and the third opening angle corresponding to the third trajectory is 122 degrees to 132 degrees.

[0087] The length of the first inner edge path A2B2 is 0.465t, and the length of the first outer edge path A1B1 is 0.115t.

[0088] The length of the second outer edge trajectory B1C1 is 0.2285t, and the second inner edge trajectory B2C2 is provided so that the movement distance of the outer edge 121 on the second outer edge trajectory B1C1 and the rotation angle of the door 12 relative to the box body 11 satisfy the following formula:

number

[0089] The center of the third inner edge locus C2D2 is within the door 12 and has a radius of curvature of 0.61t, and the center of the third outer edge locus C1D1 is within the door 12 and has a radius of curvature of 0.5t. The perpendicular distance of the center to the first reference plane X is 0.6t, and the perpendicular distance to the second reference plane Y is 0.5t.

[0090] When actually designing, taking into consideration problems such as installation deformation, a reference point can be selected to perform trajectory design, and a tolerance can be left in advance for the edge of the door 12, ensuring that the door 12 does not press against the box 11 or exceed the side of the box 11.

[0091] As shown in Figures 5 to 9, Figure 5 is a schematic diagram of the movement trajectory of the reference point in the first embodiment of the box assembly shown in Figure 1, Figure 6 is a schematic diagram of the selection range of the internal reference point in the first embodiment of the box assembly shown in Figure 1, Figure 7 is a schematic diagram of the selection range of the external reference point in the first embodiment of the box assembly shown in Figure 1, Figure 8 is a schematic diagram of the trajectory tangential angle of the internal reference point in the first embodiment of the box assembly shown in Figure 1, and Figure 9 is a schematic diagram of the trajectory tangential angle of the external reference point in the first embodiment of the box assembly shown in Figure 1.

[0092] In this embodiment, there is provided an inner reference point R2 located adjacent to the inner edge 122 and an outer reference point R1 located adjacent to the outer edge 121. First, a third reference plane Z is defined, the third reference plane Z is parallel to the first reference plane X, and the contour of the outer edge 121 is located on the third reference plane Z when in the closed state.

[0093] Specifically, the vertical distances of the internal reference point R2 to both the second reference plane Y and the first reference plane X are 0.1t or less. The selection range of the internal reference point R2 is a rectangular area with the inner edge 122 at its center and the sides having a length of 0.2t.

[0094] Similarly, the vertical distances of the outer reference point R1 to the second reference plane Y and the third reference plane Z are both 0.1t or less. The selection range of the outer reference point R1 is a rectangular area with the outer edge 121 as the center and the side length being 0.2t.

[0095] The outer reference point R1 may be on the outer edge 121 and the inner reference point R2 may be on the inner edge 122.

[0096] The trajectory design concept of the internal reference point R2 and the external reference point R1 is also based on the above-mentioned trajectory design concept of the inner edge 122 and the outer edge 121, and as the door 12 is opened from the closed state to the first opening angle relative to the box body 11 under the action of the hinge assembly 13, the internal reference point R2 moves along the first internal reference point trajectory E2F2 toward the opening of the second reference plane Y, and the external reference point R1 moves along the first external reference point trajectory E1F1 toward the first reference plane X.

[0097] All possible features of the first internal reference point locus E2F2 are similar to the first internal edge locus A2B2, and all possible features of the first external reference point locus E1F1 are similar to the first external edge locus A1B1. Below, the tangent directions of the first internal reference point locus E2F2 and the second external reference point locus E1F1 are explained in detail.

[0098] 6 and 8, a coordinate system is constructed with the origin being any point on the inner edge 122 of the door 12 in the closed state, a straight line passing through the origin, located on the first reference plane X and perpendicular to the second reference plane Y is set as the x-axis, and a straight line passing through the origin, located on the second reference plane Y and perpendicular to the first reference plane X is set as the y-axis. The internal reference points R2 are respectively (-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), which are arranged in order from left to right starting from the first row in FIG. 8 so as to correspond to the first internal reference point locus E2F2.

[0099] As can be seen from the figure, the tangent direction of the first internal reference point locus E2F2 is aligned along the first reference plane X or is inclined relative to the first reference plane X at a fifth included angle of less than 10 degrees.

[0100] Furthermore, in the process of opening the door 12 from the closed state to the first open angle, the fifth included angle does not change or changes monotonically in a linear manner, and the difference between the maximum and minimum values ​​of the fifth included angle is less than 5 degrees.

[0101] 7 and 9, a coordinate system is constructed with any point on the outer edge 121 of the door 12 in the closed state as the origin, a straight line passing through the origin, located on the third reference plane Z and perpendicular to the second reference plane Y as the x-axis, and a straight line passing through the origin, located on the second reference plane Y and perpendicular to the third reference plane Z as the y-axis. The external reference points R1 are respectively (-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), which are arranged in order from left to right starting from the first row in FIG. 9 to correspond to the first external reference point trajectory E1F1.

[0102] As can be seen, the tangent direction of the first external reference point locus E1F1 is perpendicular to the first reference plane X, or is inclined relative to the first reference plane X at six included angles that gradually approach 90 degrees.

[0103] Furthermore, the ratio of the length of the first internal reference point locus E2F2 to the length of the first external reference point locus E1F1 is 3.5 to 4.5.

[0104] For ease of design, in a specific embodiment, the first internal reference point locus E2F2 is a straight line, and the first external reference point locus E1F1 is a straight line. Depending on the selected position of the internal reference point R2, the first internal reference point locus E2F2 may be parallel to the first reference plane X or may be along the first reference plane X, and depending on the selected position of the external reference point R1, the first external reference point locus is parallel to the second reference plane Y or along the second reference plane Y. As a result, the tangent direction of the first external reference point locus E1F1 is perpendicular to the first reference plane X, and the tangent direction of the first internal reference point locus E2F2 is along the first reference plane X.

[0105] Similarly, the external reference point R1 and the internal reference point R2 can both generate the second locus and the third locus, corresponding to the internal edge 122 and the external edge 121. Here, the possible characteristics of the second internal reference point locus F2G2 are similar to the second internal edge locus B2C2, the possible characteristics of the second external reference point locus F1G1 are similar to the second external edge locus B1C1, the possible characteristics of the third internal reference point locus G2H2 are similar to the third internal edge locus C2D2, and the possible characteristics of the third external reference point locus G1H1 are all similar to the third external edge locus C1D1.

[0106] The tangent directions of the second internal reference point locus F2G2 and the second external reference point locus F1G1 will be specifically described below.

[0107] 6 and 8, a coordinate system is constructed with the origin being any point on the inner edge 122 of the door 12 in the closed state, a straight line passing through the origin, located on the first reference plane X and perpendicular to the second reference plane Y is set as the x-axis, and a straight line passing through the origin, located on the second reference plane Y and perpendicular to the first reference plane X is set as the y-axis. The internal reference points R2 are respectively (-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), which are arranged in order from left to right starting from the first row in FIG. 8 so as to correspond to the second internal reference point locus F2G2.

[0108] As can be seen from the figure, the seventh included angle between the tangent direction of the second internal reference point locus F2G2 and the first reference plane X gradually increases, and gradually increases so as to correspond to the change width of each unit angle of opening of the door 12.

[0109] Furthermore, the difference between the maximum and minimum values ​​of the seventh included angle is greater than or equal to 35 degrees.

[0110] 7 and 9, a coordinate system is constructed with the origin being any point on the outer edge 121 of the door 12 in the closed state, and the x-axis is a straight line that passes through the origin, is on the third reference plane Z and is perpendicular to the second reference plane Y, and the y-axis is a straight line that passes through the origin, is on the second reference plane Y and is perpendicular to the third reference plane Z. The external reference points R1 are (-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), which are arranged from left to right starting from the first row in FIG. 9 to correspond to the second external reference point locus F1G1.

[0111] As can be seen from the figure, the tangent direction of the second external reference point locus F1G1 is perpendicular to the first reference plane X, or is inclined with respect to the first reference plane X at eight included angles between 70 degrees and 110 degrees.

[0112] Furthermore, in the process of opening the door 12 from the first opening angle to the second opening angle, the eighth included angle does not change or changes monotonically in a linear manner, and the difference between the maximum and minimum values ​​of the eighth included angle is less than or equal to 10 degrees.

[0113] Under the action of the hinge assembly 13, as the door 12 opens from a first opening angle to a second opening angle relative to the box body 11, the internal reference point R2 moves along the second internal reference point locus F2G2 toward the opening in the second reference plane Y and toward the opposite side of the opening in the first reference plane X, and the external reference point R1 moves along the second external reference point locus F1G1 toward the first reference plane X.

[0114] For ease of design, in a specific embodiment, the second external reference point trajectory F1G1 is a straight line, and is arranged along the second reference plane Y or parallel to the second reference plane Y. The second internal reference point trajectory F2G2 is arranged such that the movement distance of the external reference point R1 on the second external reference point trajectory and the rotation angle of the door 12 satisfy the following formula:

number

[0115] In addition, the present application further limits the motion trajectory of the door motion instantaneous center, thereby alleviating the problem of the door pressing against the box or exceeding the side of the box assembly. The relative motion of the door and the box can be converted into the motion of the door instantaneous center in terms of the nature of the motion, and the relative motion relationship between the door and the box can be limited by designing the motion trajectory of the instantaneous center, that is, the door can be limited so as not to press the door seal excessively or exceed the side of the box assembly excessively. After designing the motion trajectory of the instantaneous center, the motion trajectory of the motion instantaneous center can then be used to determine the motion trajectory of the fixed point on the box or door, and the motion trajectory of the fixed point can then be used to reverse-estimate and design the hinge assembly. Therefore, it can be realized that the hinge assemblies having the motion instantaneous center motion trajectory and edge motion trajectory in the present application are all included in the scope of protection of the present application.

[0116] The third embodiment differs from the first embodiment only in that it is designed from a different perspective, that is, the movement locus of the instantaneous center of door movement, so the drawings and symbols of the first embodiment are still used. Please refer to Fig. 10 in particular, which is a schematic diagram of the instantaneous center locus of the instantaneous center of door movement in the third embodiment of the box assembly shown in Fig. 1.

[0117] In this embodiment, the motion trajectory of the instantaneous center of motion of the door 12 is limited, and specifically, the instantaneous center of motion starts from the outer edge 121 and moves along the first instantaneous center trajectory A3B3 toward the first reference plane X, and at the same time moves toward the opening of the second reference plane Y. It is possible to ensure that the door 12 does not press too hard against the box body 11 or excessively exceed the side surface of the box body 11.

[0118] According to the relevant limitation of the movement locus of the movement instantaneous center of the door 12, the degree to which the inner edge 122 can press the box 11 and the degree to which the outer edge 121 can exceed the side surface of the box assembly are determined, in practical application, the inner edge 122 is allowed to press the box 11 to a certain extent, and if a deformable door seal is installed on the box 11, the inner edge 122 can be ignored to a certain extent. Similarly, the outer edge is allowed to exceed the side surface of the box assembly 100 to a certain extent, for example, when the box assembly is embedded for use, there is a certain gap between the box 11 and the wall for embedding it, and this gap allows the outer edge 121 to exceed the side surface of the box assembly 100 to a certain extent.

[0119] It should be explained that in the planar motion of a rigid body, if the angular velocity ω of any cross-sectional figure S (or its extension) parallel to a fixed plane in the rigid body at any instant is not zero, there will always be a point P' where the velocity is zero, which is called the instantaneous center of velocity. At this instant, in terms of the velocity distribution, the cross-sectional figure (or its extension) appears to rotate only around the point P that overlaps with P' on the fixed plane, and the point P is called the instantaneous center of rotation. The instantaneous center of motion in this embodiment may be the instantaneous center of rotation or the instantaneous center of velocity of the door 12.

[0120] Furthermore, the included angle between the instantaneous center of movement, the vertical connecting line of the inner edge 122, and the first reference plane X is between 85 degrees and 95 degrees. In this range, it is ensured that the first inner edge trajectory A2B2 of the inner edge 122 moves toward the opening of the second reference plane Y and does not excessively press the box body 11. Specifically, the maximum and minimum values ​​of the included angle between the instantaneous center of movement, the vertical connecting line of the inner edge 122, and the first reference plane X during the door opening process are limited, that is, when it is 95 degrees or 85 degrees, it is ensured that the door 12 does not press the box body 11 too much.

[0121] Similarly, the included angle between the movement instantaneous center, the vertical connecting line of the outer edge 121, and the second reference plane Y is between 85 degrees and 95 degrees. In this range, it is ensured that the first outer edge trajectory A1B1 of the outer edge 122 moves to the first reference plane X and does not excessively exceed the side of the box 11. Here, specifically, the maximum and minimum values ​​of the included angle between the movement instantaneous center, the vertical connecting line of the outer edge 121, and the second reference plane Y during the door opening process are limited, that is, it is ensured that the door 12 does not excessively exceed the side of the box 11 when it is 95 degrees or 85 degrees.

[0122] In one embodiment, the vertical connecting line between the instantaneous center of motion and the inner edge 122 is perpendicular to the first reference plane X, and in the process of opening the door 12 to the first opening angle, the first inner edge trajectory A2B2 of the inner edge 122 becomes a straight line and is parallel to the first reference plane X, and the vertical connecting line between the instantaneous center of motion and the outer edge 121 is perpendicular to the second reference plane Y, and in the process of opening the door 12 to the first opening angle, the first outer edge trajectory A1B1 of the outer edge 121 becomes a straight line and is parallel to the second reference plane Y. This embodiment limits the positional relationship between the instantaneous center of motion and the inner edge 122 and the outer edge 121, thereby ensuring stable movement of the edges and ensuring that the door 12 does not press against the box 11 or go beyond the side of the box 11.

[0123] In one embodiment, in the process of opening the door 12 to the first opening angle, the first instantaneous center locus A3B3 of the motion instantaneous center of the door 12 is a circular arc, the center of the circular arc is at the midpoint of the vertical connecting line between 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. In the process of moving along the first instantaneous center locus A3B3 of the motion instantaneous center of the door 12, the first inner edge locus A2B2 of the inner edge 122 is a straight line and is parallel to the first reference plane X, and the first outer edge locus A1B1 of the outer edge 121 is a straight line and is parallel to the second reference plane Y. In this embodiment, the first instantaneous center motion locus of the motion instantaneous center is limited to ensure stable motion of the edge and ensure that the door 12 does not press against the box 11 or exceed the side of the box 11.

[0124] Furthermore, the included angle between the connecting line of the motion instantaneous center and the circle center and the connecting line of the circle center and the starting point of the first instantaneous center locus A3B3 is equal to the actual opening angle of the door 12 with respect to the box body 11. The movement of the motion instantaneous center and the first opening angle of the door 12 change regularly, and the door 12 moves smoothly in the process of being opened to the first opening angle as a whole, avoiding a situation where the door 12 slides smoothly, and ensuring that the door 12 does not press against the box body 11 or exceed the side of the box body 11. Specifically, the first opening angle is between 25 degrees and 31 degrees, and for example, the first opening angle may be 25 degrees, 28 degrees, 30 degrees, or 31 degrees. It can be ensured that the door 12 does not press against the box body 11 or exceed the side of the box body 11 within the first opening angle.

[0125] Generally speaking, in this embodiment, under the action of the hinge assembly 13, in the process of opening the door 12 from the closed state to the first opening angle relative to the box 11, the instantaneous center of motion of the door 12 starts from the outer edge 121 and moves along the first instantaneous center locus A3B3 toward the first reference plane X, and at the same time moves toward the opening side of the second reference plane Y. Here, the first instantaneous center locus A3B3 has certain characteristics, and the door 12 moves along the first instantaneous center locus A3B3, which can reduce or in severe cases prevent the door 12 from pressing against the box 11 or going beyond the side of the box 11.

[0126] That is, in the process of opening the door 12 to the first opening angle, the inner edge 122 of the door 12 does not press against the box 11 or move excessively away from the box 11. The outer edge 121 does not exceed the side of the box assembly 100 or move excessively toward the opening of the second reference plane Y. As a result, no significant displacement problem occurs when the door 12 is opened, and the movement of the door 12 becomes more stable.

[0127] In this embodiment, when the instantaneous center of motion of the door 12 moves along the first instantaneous center locus of motion and the door 12 is opened to 90 degrees, the door 12 may not be able to continue opening. The maximum opening angle of the door 12 generally needs to be greater than 90 degrees, and therefore, after the instantaneous center of motion of the door 12 moves along the first instantaneous center locus and the door 12 is opened to less than 90 degrees, the door 12 may move by adopting another instantaneous center locus so as to be subsequently opened to more than 90 degrees.

[0128] As described above, the door 12 may move along another trajectory after being opened to the first opening angle. In this embodiment, in the process in which the door 12 is opened from the first opening angle to the second opening angle with respect to the box 11 under the action of the hinge assembly 13, the instantaneous center of movement moves along the second instantaneous center trajectory B3C3 to 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.

[0129] According to the above trajectory characteristics, the door 12 does not press against the box body 11 or go beyond the side of the box body 11 excessively in the process of opening from the first opening angle to the second opening angle, so the door 12 has space to open to a larger angle.

[0130] Here, the instantaneous center of motion moves toward the first reference plane X along the second instantaneous center locus B3C3, and the included angle between the tangent direction of the second instantaneous center locus B3C3 and the first reference plane X is between 85 degrees and 95 degrees. In this range, the instantaneous center of motion is always on the side opposite the second reference plane Y of the outer edge 121, ensuring that the outer edge 122 does not excessively exceed the side of the box body 11. The instantaneous center of motion is always on the side opposite the first reference plane X of the inner edge 122, ensuring that the first inner edge locus A2B2 of the inner edge 122 moves toward the opening of the second reference plane Y and does not excessively press against the box body 11.

[0131] Furthermore, the second instantaneous center locus B3C3 is a straight line and is perpendicular to the first reference plane X, and in the process of opening the door 12 from the first opening angle to the second opening angle, the second outer edge locus 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 exceed the side of the box 11 excessively. The inner edge 122 moves away from the first reference plane X, which ensures that the door 12 does not press the box 11 excessively. The end point C2 of the second inner edge locus B2C2 is on the opposite side of the first reference plane X to the opening, so that the door 12 has space to open to a larger angle. In addition, the second instantaneous center locus B3C3 of the movement instantaneous center and the second opening angle of the door 12 change regularly, and the door 12 moves smoothly in the process of opening from the first opening angle to the second opening angle, generally speaking, to avoid the situation of sliding irregularly.

[0132] Furthermore, in the process of opening the door 12 from the first opening angle to the second opening angle, the included angle between the movement instantaneous center, the vertical connecting line of the outer edge 121, and the second reference plane Y is between 85 degrees and 95 degrees. In this range, it is ensured that the second outer edge trajectory B1C1 of the outer edge 122 moves to the first reference plane X and does not excessively exceed the side of the box 11. Here, specifically, the maximum and minimum values ​​of the included angle between the movement instantaneous center, the vertical connecting line of the outer edge 121, and the second reference plane Y in the door opening process are limited, that is, it is ensured that the door 12 does not excessively exceed the side of the box 11 at 95 degrees or 85 degrees. When the vertical connecting line between the instantaneous center of movement and the outer edge 121 is perpendicular to the second reference plane Y, i.e., when the included angle between the vertical connecting line between the instantaneous center of movement and the outer edge 121 and the second reference plane is 90 degrees, in the process of the door 12 moving along the second instantaneous center locus B3C3 of the instantaneous center of movement, the second outer edge locus B1C1 of the outer edge 121 becomes a straight line and is perpendicular to the first reference plane X, which ensures that the door 12 does not exceed the side of the box 11.

[0133] At the same time, in the process of opening the door 12 from the first opening angle to the second opening angle, the vertical distance of the inner edge 122 to the center of instantaneous movement becomes gradually smaller, so that the radius of curvature of the second inner edge locus B2C2 of the inner edge 122 becomes gradually smaller, and its end point C2 is on the opposite side of the first reference plane X to the opening, so that the door 12 has space to open to a larger angle and can ensure that the door 12 does not press against the box body.

[0134] According to the above-mentioned trajectory characteristics, the door 12 does not press against the box body 11 or go beyond the side surface of the box body 11 excessively in the process of opening from the first opening angle to the second opening angle.

[0135] Specifically, the second opening angle is between 57 degrees and 60 degrees, and may be 57 degrees, 58 degrees, 59 degrees, 60 degrees, etc. Within the second opening angle, it can be ensured that the door 12 does not press against the box body 11 or exceed the side surface of the box body 11.

[0136] Under the action of the hinge assembly 13, the door 12 can be further opened relative to the box body 11 from the second opening angle to the third opening angle, during which the instantaneous center of motion does not need to change, and the door 12 as a whole rotates around the instantaneous center of motion, and the trajectory of the direction of motion corresponds to a larger opening angle of the door 12.

[0137] As described above, in the process of opening the door 12 from the second opening angle to the third opening angle relative to the box body 11, the instantaneous center of motion does not change and is located at the end point of the second instantaneous center of motion locus, and the third inner edge locus C2D2 of the inner edge 122 and the third outer edge locus C1D1 of the outer edge 121 are specifically concentric arcs.

[0138] According to the above-mentioned trajectory characteristics, the door 12 does not press against the box body 11 or exceed the side surface of the box body 11 excessively in the process of opening the door 12 from the second opening angle to the third opening angle.

[0139] After the instantaneous center of motion of the door 12 moves along the first instantaneous center locus A3B3, in order to achieve a larger door opening angle, the end point of the first instantaneous center locus A3B3 can be directly set as the third instantaneous center locus to realize the rotation of the door 12, thereby solving the problem of pressing against the box body 11 or going beyond the side of the box body 11.

[0140] However, after the hinge assembly 13 is designed to add the third instantaneous center locus to the first instantaneous center locus A3B3, when the door 12 rotates through the hinge assembly 13, the shaking phenomenon is likely to occur during the rotation process. In order to further optimize and solve the shaking problem, the second instantaneous center locus B3C3 is added between the first instantaneous center locus A3B3 and the third instantaneous center locus, so that the movement process of the door 12 is more stable and smooth.

[0141] Various hinge assembly structures can be designed based on the design principle of the relative movement from the trajectory design of the edge of the door 12. For example, as shown in Figures 11 to 13, Figure 11 is a schematic diagram of the structure of the fourth embodiment of the box assembly of the present application, Figure 12 is a schematic diagram of the hinge shaft structure of the hinge assembly in the fourth embodiment of the box assembly shown in Figure 11, and Figure 13 is a schematic diagram of the hinge groove structure of the hinge assembly in the fourth embodiment of the box assembly shown in Figure 11.

[0142] The fourth embodiment is different from the first embodiment shown in Fig. 1 only in that the structure of the hinge assembly is embodied, so the reference numerals of the first embodiment are still used. The hinge assembly 13 in the box assembly 100 of this embodiment is designed by converting the movement trajectory of the edge of the door 12 into the movement trajectory of two fixed points on the door 12 or the box 11, and then designing a corresponding mechanical structure based on the movement trajectory of the two fixed points, so that the hinge assembly 13 is provided with a first guide mechanism 135 and a second guide mechanism 136 which respectively realize the movement trajectory of the two fixed points, that is, the cooperation of the two guide mechanisms allows the edge of the door 12 to move along a preset trajectory.

[0143] 11 to 13, the guide mechanism is a slotted post fitting structure. Obviously, the guide mechanism designed based on the trajectory may be a connecting rod structure, a slotted post + connecting rod structure, etc.

[0144] The hinge assembly 13 in this embodiment is a double-shaft double-groove hinge, with the double grooves installed on the door 12 and the double shafts installed on the box 11. For the same reason, in other embodiments, the double grooves may be installed on the box 11 and the double shafts may be installed on the door 12, or the door 12 may be provided with one shaft and one groove, and the box 11 may also be provided with one shaft and one groove correspondingly, or, as mentioned above, the shaft-groove structure of the door 12 and the box 11 may be converted into a connecting rod structure or a shaft + track slide structure, etc.

[0145] Specifically, the hinge assembly 13 of this embodiment includes a first hinge shaft 131 and a second hinge shaft 132 installed on the box 11, and a first hinge groove 133 and a second hinge groove 134 installed on the door 12. Here, the first hinge shaft 131 moves in the first hinge groove 133, and the two together constitute a first guide mechanism 135, and the second hinge shaft 132 moves in the second hinge groove 134, and the two together constitute a second guide mechanism 136, thereby realizing the movement trajectory of the door edge shown in FIG. 3, and then resolving the problem of the door 12 pressing against the box 11 and exceeding the side of the box assembly 100.

[0146] During the process of opening the door 12, the movement state of the hinge assembly 13 is as shown in Figures 14 to 17. Figure 14 is a schematic diagram of the state of the hinge assembly when the door is in a closed state relative to the box in the fourth embodiment of the box assembly shown in Figure 11. Figure 15 is a schematic diagram of the state of the hinge assembly when the door is opened to a first opening angle relative to the box in the fourth embodiment of the box assembly shown in Figure 11. Figure 16 is a schematic diagram of the state of the hinge assembly when the door is opened to a second opening angle relative to the box in the second embodiment of the box assembly shown in Figure 11. Figure 17 is a schematic diagram of the state of the hinge assembly when the door is opened to a third opening angle relative to the box in the second embodiment of the box assembly shown in Figure 11.

[0147] In this embodiment, the first hinge groove 133 includes a first groove portion 1331 , a second groove portion 1332 and a third groove portion 1333 , and the second hinge groove 134 includes a fourth groove portion 1341 and a fifth groove portion 1342 .

[0148] When the door 12 is opened from a closed state to a first opening angle relative to the box body 11, the first hinge shaft 131 moves along the first groove portion 1331, and the second hinge shaft 132 moves along the fourth groove portion 1341, correspondingly realizing the first trajectory in Figure 3.

[0149] When the door 12 is opened from the first opening angle to the second opening angle relative to the box body 11, the first hinge shaft 131 moves along the second groove portion 1332, and the second hinge shaft 132 moves along the fifth groove portion 1342, correspondingly realizing the second locus in Figure 3.

[0150] When the door 12 is opened from the second opening angle to the third opening angle relative to the box body 11, the first hinge shaft 131 moves along the third groove portion 1333, and the second hinge shaft 132 is at the bottom end of the fifth groove portion 1342 and does not change position, thereby correspondingly realizing the third locus in Figure 3.

[0151] Here, the first hinge groove 133 and the second hinge groove 134 tend to move away from each other in the direction toward the first reference plane. The first groove portion 1331 is farther from one side of the second reference plane Y than the fourth groove portion 1341, and extends toward the second reference plane Y and the first reference plane X, forming the second groove portion 1332 and the third groove portion 1333. The included angle between the tangent direction of the first groove portion 1331 and the first reference plane X is larger than the included angle between the tangent direction of the fourth groove portion 1341 and the first reference plane X.

[0152] In this embodiment, the design of the hinge assembly 13 allows the door 12 to open stably and smoothly relative to the box 11 without pressing against the box 11 or exceeding the side of the box assembly 100, which is convenient for recessed use.

[0153] In summary, in this application, different hinge assemblies can be designed correspondingly to correspond to different movement trajectories of the door edge, all of which can reduce the problem of the door pressing against the box or going over the side of the box assembly when opening. The above box assembly design can be applied to products that have doors and have problems of pressing against the box or interference when going over the box assembly, such as refrigerators, cabinets, etc.

[0154] The present application further provides a refrigeration apparatus comprising the above box assembly 100, i.e. employing the above door 12, box 11, and hinge assembly 13 between the door 12 and box 11. The refrigeration apparatus may be a refrigerator, a freezer, a wine cabinet, a fresh food cabinet, etc.

[0155] The above is merely an embodiment of the present application, and the scope of the claims of the present application is not limited thereby. Any equivalent configuration or equivalent flow conversion made by utilizing the contents of the specification and drawings of the present application, or direct or indirect application thereof to other related technical fields, is similarly intended to be included in the scope of the claims of the present application.

Claims

1. A box body having an opening for forming a storage space; A door for closing the opening; a hinge assembly provided on the pivot side of the box body so as to pivotally connect the box body and the door, the hinge assembly being composed of a first hinge shaft, a second hinge shaft, a first hinge groove, and a second hinge groove, the first hinge groove including a first groove portion, a second groove portion, and a third groove portion, and the second hinge groove including a fourth groove portion and a fifth groove portion; the door has an inner edge and an outer edge on the pivot side, and the door is further provided with a first reference plane and a second reference plane, the first reference plane is parallel to a plane in which the opening is located, an outline of the inner edge is positioned on the first reference plane when in a closed state, the second reference plane is perpendicular to the plane in which the opening is located, an outline of the outer edge is positioned on the second reference plane when in the closed state, and the first reference plane and the second reference plane are stationary with respect to the box during the process of opening the door relative to the box, During a process in which the door is opened from the closed state to a first opening angle with respect to the box under the action of the hinge assembly, and during a process in which the door is opened from the first opening angle to a second opening angle with respect to the box under the action of the hinge assembly, the outer edge moves toward the first reference plane along a first outer edge trajectory and a second outer edge trajectory, respectively, a radius of curvature of the first outer edge trajectory and the second outer edge trajectory is not smaller than 5t, a distance that the first outer edge trajectory and the second outer edge trajectory extend beyond a side of the second reference plane opposite to the opening is not greater than a first predetermined distance, t is a thickness of the door, the first hinge groove and the second hinge groove are spaced apart from each other in a direction toward the first reference plane, the first groove portion is spaced apart from one side of the second reference plane more than the fourth groove portion and extends toward the second reference plane and the first reference plane X, forming the second groove portion and the third groove portion, and an included angle between a tangent direction of the first groove portion and the first reference plane is greater than an included angle between a tangent direction of the fourth groove portion and the first reference plane.

2. 2. The box assembly of claim 1, wherein the first opening angle is between 25 degrees and 31 degrees, the second opening angle is between 57 degrees and 60 degrees, and the third opening angle is between 122 degrees and 132 degrees.

3. 2. The box assembly of claim 1, wherein an end point of the first outer edge locus is on the second reference plane or on a side of the second reference plane toward the opening and a distance to the second reference plane is not greater than 0.135t.

4. In the process of opening the door from the closed state to the first opening angle with respect to the door under the action of the hinge assembly, the inner edge moves along a first inner edge trajectory toward the side of the second reference plane toward the opening, the radius of curvature of the first inner edge trajectory is not smaller than 100t, and the distance that the first inner edge trajectory extends beyond the side of the first reference plane toward the opening is not greater than a second predetermined distance, During the process of opening the door from the first opening angle to the second opening angle relative to the box body under the action of the hinge assembly, the inner edge moves along a second inner edge trajectory toward a side of the second reference plane toward the opening and toward a side of the first reference plane opposite to the opening, the radius of curvature of the second inner edge trajectory gradually decreases, the end point of the second inner edge trajectory is on a side of the first reference plane opposite to the opening, and the distance to the first reference plane is not less than 0.3t, 3. The box assembly of claim 2, wherein, during the process in which the door is opened from the second opening angle to the third opening angle relative to the box under the action of the hinge assembly, the inner edge moves along a third inner edge trajectory toward a side of the first reference plane opposite the opening, the third inner edge trajectory and a third outer edge trajectory are concentric arcs, and a radius of curvature of the third inner edge trajectory is 0.55t-0.67t.

5. 5. The box assembly of claim 4, wherein the end point of the first inner edge locus is on the first reference plane or on the side of the first reference plane opposite the opening and the distance to the first reference plane is not greater than 0.058t.

6. 5. The box assembly of claim 4, wherein the first predetermined distance is 0-4 mm and the second predetermined distance is 0-2 mm.

7. 5. The box assembly of claim 4, wherein a length of the first inner edge locus is greater than a length of the first outer edge locus, and a ratio of the length of the first inner edge locus to the length of the first outer edge locus is 3.5-4.

5.

8. 5. The box assembly of claim 4, wherein a ratio of a radius of curvature of the third inner edge locus to a radius of curvature of the third outer edge locus is 1.

22.

9. 5. The box assembly of claim 4, wherein the center of the circle has a distance of 0.6t to the first reference plane and a distance of 0.5t to the second reference plane.

10. The door further includes an outer reference point disposed adjacent to the outer edge, 2. The box assembly of claim 1, wherein during the process in which the door is opened from the closed state to the first opening angle relative to the box under the action of the hinge assembly, and during the process in which the door is opened from the first opening angle to the second opening angle relative to the box, the external reference points move toward the first reference plane along a first external reference point locus and a second external reference point locus, respectively, and both the first external reference point locus and the second external reference point locus are straight lines.

11. The door further includes an internal reference point disposed adjacent to the inner edge, In a process in which the door is opened from the closed state to the first opening angle with respect to the box body under the action of the hinge assembly, the internal reference point moves along a first internal reference point locus toward the opening of the second reference plane, and the first internal reference point locus is a straight line; In the process of opening the door from the first opening angle to the second opening angle with respect to the box body under the action of the hinge assembly, the internal reference point moves along a second internal reference point trajectory toward the side of the second reference plane toward the opening and toward the side of the first reference plane opposite to the opening, and the second internal reference point trajectory is provided such that a movement distance of the external reference point on the second external reference point trajectory and a rotation angle of the door satisfy the following formula: [0010] 11. The box assembly of claim 10, wherein θ1 is the rotation angle, t1 is the movement distance, and θ is a nominal angle of 100 degrees-113 degrees.

12. 12. The box assembly of claim 11, wherein the inner reference point has a vertical distance to the first reference plane not greater than 0.1t and a vertical distance to the second reference plane not greater than 0.1t, and the outer reference point has a vertical distance to the second reference plane not greater than 0.1t and a vertical distance to a third reference plane not greater than 0.1t, the third reference plane passing through the outer edge when in the closed state and parallel to the first reference plane.

13. 13. The box assembly of claim 12, wherein said internal reference point is at said inner edge and said external reference point is at said outer edge.

14. The box assembly of claim 11, wherein the first internal reference point locus is arranged along or parallel to the first reference plane, the first external reference point locus is arranged along or parallel to the second reference plane, and the second external reference point locus is arranged along or parallel to the second reference plane.

15. The box assembly of claim 11, characterized in that a length of the first internal reference point locus is greater than a length of the first external reference point locus, and a ratio of the length of the first internal reference point locus to the length of the first external reference point locus is 3.5-4.5.

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