Box body assembly and refrigeration equipment

Abstract

According to the box body assembly and the refrigeration equipment, a reference point of a door body coincides with one, farthest from a second reference plane, of the starting position and the ending position of a first hinge point, and in the process that the door body is opened to a first opening angle from a closed state, the door body is closed; a first vertical distance from the reference point to the outer edge and a second vertical distance from the reference point to the inner edge are gradually reduced, a third included angle between the first vertical line and the first reference plane is gradually reduced in a range of 0-90 degrees, and a fourth included angle between the second vertical line and the first reference plane is gradually increased; in the process that the door body is opened from the first opening angle to the second opening angle, the first vertical distance is gradually decreased, the third included angle is gradually decreased in the range of 0-90 degrees, the fourth included angle is gradually increased from smaller than 90 degrees to larger than 90 degrees, the second vertical distance is gradually decreased and then gradually increased, and in the preset angle range before the second opening angle, the first vertical distance is gradually decreased, and then the second vertical distance is gradually increased. The sine value of the fourth included angle is reduced while the second vertical distance is increased.

Description

[0001] This application is a divisional application of Chinese patent application No. 202110179364.0, filed on February 9, 2021, entitled "A Box Assembly and Refrigeration Equipment". Technical Field

[0002] This application relates to a housing assembly and a refrigeration device. Background Technology

[0003] For enclosure components with doors and enclosures, when the door is opened relative to the enclosure, the door may squeeze the enclosure or extend beyond the side of the enclosure component. This can lead to damage to the enclosure and interference with the installation environment. For example, in recessed installations, the part of the door extending beyond the side of the enclosure component may interfere with the embedded wall. Summary of the Invention

[0004] This application provides a cabinet assembly and a cooling device to solve the problems in the prior art where the door squeezes the cabinet and extends beyond the side of the cabinet assembly during opening.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a housing assembly, comprising: A housing, the housing being used to form a receiving space with an opening; The door body is used to block the opening; A hinge assembly configured to pivotally connect the housing and the door on the pivot side of the housing; The door has an inner edge and an outer edge on the pivot side. The door is further provided with a first reference plane and a second reference plane. The first reference plane passes through the inner edge of the door when it is closed and is parallel to the plane where the opening is located. The second reference plane passes through the outer edge of the door when it is closed and is perpendicular to the plane where the opening is located. The first reference plane and the second reference plane remain stationary relative to the box body during the opening of the door body relative to the box body. The hinge assembly includes an outer shaft and an inner shaft disposed on one of the door body and the housing, and an outer groove and an inner groove disposed on the other of the door body and the housing. The outer groove and the outer shaft cooperate to form a first hinge point; the inner groove and the inner shaft cooperate to form a second hinge point. The second hinge point is located further away from the outer edge than the first hinge point. During the process of the door body opening relative to the housing from a closed position to a maximum angle under the action of the hinge assembly, the first hinge point moves from a starting position to an ending position. The door body is further provided with a reference point, which coincides with the one furthest from the second reference plane between the starting position and the ending position of the first hinge point, and remains relatively stationary relative to the housing during the opening process of the door body. The reference point has a first perpendicular line to the outer edge, and a first perpendicular distance along the first perpendicular line to the outer edge; the reference point has a second perpendicular line to the inner edge, and a second perpendicular distance along the second perpendicular line to the inner edge; the first perpendicular line has a third angle with the first reference plane; and the second perpendicular line has a fourth angle with the first reference plane. During the process of the door opening from the closed state to the first opening angle relative to the box, the first vertical distance and the second vertical distance gradually decrease, the third included angle gradually decreases within the range of 0 degrees to 90 degrees, and the fourth included angle gradually increases within the range of 0 degrees to 90 degrees. During the process of the door opening from the first opening angle to the second opening angle relative to the box, the first vertical distance gradually decreases, the third included angle gradually decreases within the range of 0 degrees to 90 degrees, the fourth included angle gradually increases from less than 90 degrees to greater than 90 degrees, the second vertical distance first gradually decreases and then gradually increases, and within a predetermined angle range before the second opening angle, the sine value of the fourth included angle decreases while the second vertical distance increases. During the process of the door opening from the closed state to the second opening angle relative to the box body, the outer shaft moves continuously from one end of the outer groove to the other end of the outer groove relative to the outer groove body, and the inner shaft moves continuously from one end of the inner groove to the other end of the inner groove relative to the inner groove body.

[0006] To address the aforementioned technical problems, this application also provides a refrigeration device, including the aforementioned housing assembly.

[0007] This application's enclosure assembly includes a door, an enclosure, and a hinge assembly. The hinge assembly is configured to pivotally connect the enclosure and the door on the pivot side of the enclosure. The hinge assembly includes an outer shaft and an inner shaft disposed on one of the door and the enclosure, and an outer groove and an inner groove disposed on the other of the door and the enclosure. The outer groove and the outer shaft cooperate to form a first hinge point, and the inner groove and the inner shaft cooperate to form a second hinge point. The second hinge point is located further away from the outer edge of the door than the first hinge point. The reference point of the door coincides with the one furthest from the second reference plane at the starting and ending positions of the first hinge point, and remains relatively stationary relative to the enclosure during the opening process of the door. When the door opens relative to the enclosure from a closed state to a first opening angle... During the process, the first perpendicular distance from the reference point to the outer edge and the second perpendicular distance from the reference point to the inner edge gradually decrease, the third included angle between the first perpendicular line from the reference point to the outer edge and the first reference plane gradually decreases within the range of 0 to 90 degrees, and the fourth included angle between the second perpendicular line from the reference point to the inner edge and the first reference plane gradually increases within the range of 0 to 90 degrees. This is to counteract the increase in the projection line of the line connecting the reference point and the outer edge on the first reference plane, and the increase in the projection line of the line connecting the reference point and the inner edge on the second reference plane. This prevents the door from extending beyond the side of the cabinet (i.e., the second reference plane) and excessively squeezing the door seal during opening, facilitating the embedding of cabinet components and extending the service life of the door seal. Furthermore, during the process of the door opening from the first opening angle to the second opening angle relative to the housing, the first vertical distance gradually decreases, the third included angle gradually decreases within the range of 0 to 90 degrees, the fourth included angle gradually increases from less than 90 degrees to greater than 90 degrees, the second vertical distance first gradually decreases and then gradually increases, and within a predetermined angle range before the second opening angle, the sine value of the fourth included angle decreases while the second vertical distance increases. During the process of the door opening from the closed state to the maximum opening angle, the outer groove and the inner groove move synchronously with the door. At the beginning of the movement, the outer shaft is located at one end of the outer groove, and the inner shaft is located at one end of the inner groove. At the end of the movement, the outer shaft is located at the other end of the outer groove, and the inner shaft is located at the other end of the inner groove. Furthermore, the position of the outer shaft relative to the outer groove moves from one end of the outer groove to the other end, which can improve the problem of the door moving too far away from the housing and having poor stability during the opening process. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a cross-sectional structural schematic diagram of the first embodiment of the housing assembly of this application; Figure 2 This is a partially enlarged schematic diagram of the hinge assembly when the door is in the closed state in the first embodiment of the box assembly of this application; Figure 3 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the first opening angle in the first embodiment of the box assembly of this application; Figure 4 This is a schematic diagram illustrating the change of the angle between the direction of movement and the first reference plane as a function of the opening angle of the door in the first embodiment of the box assembly of this application. Figure 5 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the second opening angle in the first embodiment of the box assembly of this application; Figure 6 This is a schematic diagram showing the vertical distance between the reference point and the edge in the first embodiment of the box assembly of this application as a function of the opening angle of the door; Figure 7 This is a schematic diagram illustrating the change of the angle between the perpendicular line between the reference point and the edge and the first reference plane in the first embodiment of the box assembly of this application as a function of the opening angle of the door. Figure 8 This is a schematic diagram illustrating the change of the door's over-box distance as the door changes from the closed state to the first opening angle in the first embodiment of the box assembly of this application; Figure 9 This is a schematic diagram illustrating the function of the distance the door squeezes the box body as it moves from the closed state to the first opening angle in the first embodiment of the box body assembly of this application; Figure 10 This is a schematic diagram illustrating the change in the distance beyond the box of the door in the first embodiment of the box assembly of this application as a function of the door changing from the first opening angle to the second opening angle; Figure 11 This is a schematic diagram illustrating the function of the distance the door squeezes the box body as a function of the door body changing from the first opening angle to the second opening angle in the first embodiment of the box body assembly of this application; Figure 12 This is a schematic diagram illustrating the function of the angle between the direction of movement and the rear wall plane as a function of the opening angle of the door in the first embodiment of the box assembly of this application. Figure 13 This is a partially enlarged schematic diagram of the hinge assembly when the door is in the closed state in the second embodiment of the box assembly of this application; Figure 14 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the first opening angle in the second embodiment of the box assembly of this application; Figure 15 This is a schematic diagram showing the function of the first included angle and the second included angle as a function of the opening angle of the door in the second embodiment of the box assembly of this application; Figure 16 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the second opening angle in the second embodiment of the box assembly of this application; Figure 17 This is a partially enlarged schematic diagram of the hinge assembly when the door is in the closed state in the third embodiment of the box assembly of this application; Figure 18 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the first opening angle in the third embodiment of the box assembly of this application; Figure 19 This is a schematic diagram showing the function of the first included angle and the second included angle as a function of the opening angle of the door in the third embodiment of the box assembly of this application; Figure 20 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the second opening angle in the third embodiment of the box assembly of this application; Figure 21 This is a partially enlarged schematic diagram of the hinge assembly when the door is in the closed state in the fourth embodiment of the box assembly of this application; Figure 22 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the first opening angle in the fourth embodiment of the box assembly of this application; Figure 23 This is a schematic diagram showing the function of the first included angle and the second included angle as a function of the opening angle of the door in the fourth embodiment of the box assembly of this application; Figure 24 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the second opening angle in the fourth embodiment of the box assembly of this application; Figure 25 This is a partially enlarged schematic diagram of the hinge assembly when the door is in the closed state in the fifth embodiment of the box assembly of this application; Figure 26 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the first opening angle in the fifth embodiment of the box assembly of this application; Figure 27 This is a partially enlarged schematic diagram of the hinge assembly when the door is at the second opening angle in the fifth embodiment of the box assembly of this application; Figure 28 This is a schematic diagram of the movement trajectory of the edge in the box assembly of this application; Figure 29 This is a schematic diagram of the opening angle of the door relative to the box and the movement trajectory of the edge. Detailed Implementation

[0009] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0010] There are various structures for hinge assemblies that enable relative rotation between the door and the cabinet. The structure of the hinge assembly determines the relative motion relationship between the door and the cabinet. If only rotation is achieved, it is easy for the door to squeeze into the cabinet, or for the door to extend beyond the side of the cabinet assembly. The side of the cabinet assembly could be the side of the cabinet itself, or it could be the side of the door when it is closed.

[0011] To address the aforementioned problems, this application designs the structure of the hinge assembly. Several embodiments based on the inventive concept of this application will be introduced first, followed by an explanation of the inventive concept of this application.

[0012] See Figure 1 and Figure 2 The first embodiment of the housing assembly 10 of this application includes a housing 110, a door 120, and a hinge assembly 130. The housing 110 forms an accommodating space with an opening. The door 120 is used to block the opening. The hinge assembly 130 is disposed on the pivot side of the housing 110 and is used to pivotally connect the housing 110 and the door 120. That is, the door 120 can be opened or closed relative to the housing 110 under the action of the hinge assembly 130.

[0013] The door 120 has an inner edge 121 and an outer edge 122 on the pivot side. The housing assembly 10 is provided with a first reference plane 123 and a second reference plane 124. The first reference plane 123 passes through the inner edge 121 of the door 120 when it is in the closed state and is parallel to the plane where the opening is located. The second reference plane 124 passes through the outer edge 122 of the door 120 when it is in the closed state and is perpendicular to the plane where the opening is located. The first reference plane 123 and the second reference plane 124 remain stationary relative to the housing 110 during the opening of the door 120 relative to the housing 110.

[0014] The hinge assembly 130 includes an inner groove 140 and an outer groove 150 disposed on the door body 120, and an inner shaft 160 and an outer shaft 170 disposed on the housing 110. The inner groove 140 is located on the side of the outer groove 150 away from the second reference plane 124. The outer groove 150 cooperates with the outer shaft 170 to form a first hinge point at the axis of the outer shaft 170. The inner groove 140 cooperates with the inner shaft 160 to form a second hinge point at the axis of the inner shaft 160. The second hinge point is located away from the outer edge 122 relative to the first hinge point (in this application, this means that the orthographic projection of the first hinge point on the vertical line from the second hinge point to the outer edge 122 is located between the second hinge point and the outer edge 122).

[0015] During the process of the door 120 opening relative to the box 110 under the action of the hinge assembly 130, the door 120 has a first direction of movement relative to the box 110 at the first hinge point and a second direction of movement relative to the box 110 at the second hinge point. The first direction of movement has a first angle θ11 with the first reference plane 123 and the second direction of movement has a second angle θ12 with the first reference plane 123. The first included angle θ11 and the second included angle θ12 are defined as follows: when the first direction of motion is away from the first reference plane, the first included angle θ11 is positive; when the first direction of motion is away from the second reference plane 124, the absolute value of the first included angle θ11 is less than 90 degrees. That is, when the first direction of motion is close to the first reference plane, the first included angle θ11 is negative; when the first direction of motion is close to the second reference plane, the absolute value of the first included angle θ11 is greater than 90 degrees. When the second direction of motion is away from the second reference plane 124, the second included angle θ12 is positive; when the second direction of motion is away from the second reference plane 124, the absolute value of the second included angle θ12 is less than 90 degrees. However, when the second direction of motion is close to the second reference plane 124, the second included angle is negative; when the second direction of motion is close to the second reference plane 124, the absolute value of the second included angle is greater than 90 degrees.

[0016] See also Figure 3 and Figure 4During the process of the door 120 rotating from the closed state to the first opening angle, the shaft moves along a first trajectory within the groove. During this process, the second included angle θ12 is positive and less than 90 degrees, and the first included angle θ11 gradually decreases from the first initial angle (positive and less than 90 degrees) to the first final angle. The difference between the second included angle θ12 and the first included angle θ11 at the same actual opening angle of the door 120 relative to the housing 110 gradually increases. From the perspective of motion relationship, the above-mentioned motion trend of the two hinge points corresponds to the movement of the door relative to the housing, including rotation and movement. The movement has a tendency to move away from the first reference plane and the second reference plane, which offsets the tendency of the door to squeeze the housing and extend beyond the side of the housing assembly during rotation. Therefore, the door assembly of this application can ensure that the door does not excessively squeeze the housing or extend too far beyond the side of the housing assembly.

[0017] Based on the aforementioned motion design principles for the first and second hinge points, if a larger opening angle is desired, the trajectories of the first and second hinge points would be very long, requiring larger corresponding slots. This would easily lead to a larger hinge assembly size and higher production costs. Therefore, the motion trajectory of the hinge points is designed in multiple segments. Specifically, the first and second hinge points, based on the aforementioned design approach, are used in the first opening angle segment. As the opening angle increases, other hinge point motion design approaches are combined. Therefore, in this embodiment, the first opening angle is set between 25 and 31 degrees, and can be 25 degrees, 27.8 degrees, 28 degrees, 31 degrees, etc.

[0018] Specifically, in this embodiment, the first included angle θ11 gradually decreases from the first initial angle to the first termination angle, and the difference between the second included angle θ12 and the first included angle θ11 gradually increases. As the door opens to the first opening angle, the movement direction of the door at the two hinge points is on both sides of 45 degrees, thus achieving the longest hinge point trajectory in a small-sized hinge assembly. Furthermore, in this embodiment, the range of the first initial angle θ11 is between +55 degrees and +45 degrees, for example, +55 degrees, +50 degrees, or +45 degrees; the range of the first termination angle is between +1 degree and +11 degrees, for example, +1 degree, +6 degrees, or +11 degrees; and the range of the second included angle θ12 is between +78 degrees and +64 degrees, specifically between 73 degrees and 69 degrees, for example, +78 degrees, +71 degrees, or +64 degrees. Moreover, during this process, the trend of the second included angle θ12 is that it first decreases from 73 degrees to 69 degrees, and then increases from 69 degrees to 70 degrees.

[0019] Furthermore, in this embodiment, the inner shaft 160 and outer shaft 170 are located on the housing, and the inner groove 140 and outer groove 150 are located on the door. The inner shaft 160 constitutes the second hinge point, and the outer shaft 170 constitutes the first hinge point. The inner shaft 160 is closer to the inner wall of the door 120. When the door 120 rotates from the closed state to the first opening angle, to achieve the tendency of the door 120 to move away from the wall, the movement trajectory of the inner shaft 160 is obviously greater than that of the outer shaft 170. In this embodiment, the ratio of the length of the movement trajectory of the inner shaft 160 relative to the inner groove 140 to the length of the movement trajectory of the outer shaft 170 relative to the outer groove 150 is in the range of 1.2 to 1.4, such as 1.2, 1.3, 1.31, or 1.4, so that the door 120 can move relative to the housing 110 along... Figure 2 The rotation is shown to be counterclockwise.

[0020] After the door 120 is opened to the first opening angle, the movement of the first hinge point and the second hinge point can be changed, so that the door can be stably opened to a larger angle thereafter. See [link / reference]. Figures 3 to 5 During the process of the door 120 rotating from the first opening angle to the second opening angle, the first included angle θ11 gradually increases from the second initial angle with an absolute value of less than 90 degrees to the second termination angle, and the second included angle θ12 gradually increases from the third initial angle with a positive value and less than 90 degrees to the third termination angle. The difference between the second included angle θ12 and the first included angle θ11 at the same actual opening angle of the door 120 relative to the box 110 gradually increases at least first.

[0021] Similarly, after the door 120 opens to the first opening angle relative to the box 110, as the difference between the second included angle θ12 and the first included angle θ11 gradually increases, the door 120 tends to move away from the first reference plane relative to the box 110, and the distance from the outer shaft 170 to the inner edge 121 and the outer edge 122 gradually decreases, which corresponds to the door 120 tending to move away from the second reference plane relative to the box 110.

[0022] During the opening of the door 120, the distance from the outer shaft 170 to the inner edge 121 and the outer edge 122 gradually decreases. Mathematically, this can offset the increase in the projection line of the line connecting the outer shaft 170 and the outer edge 122 on the first reference plane 123, and the increase in the projection line of the line connecting the outer shaft 170 and the inner edge 121 on the second reference plane 124. Thus, it can be seen that the door 120 can avoid excessively extending beyond the side of the box assembly and excessively squeezing the box 110 during the opening process.

[0023] In this embodiment, the range of the second opening angle is between 57 degrees and 60 degrees, such as 57 degrees, 59 degrees, or 60 degrees. The difference between the second included angle θ12 and the first included angle θ11 at the same actual opening angle of the door 120 relative to the box 110 first gradually increases and then gradually decreases. The range of the actual opening angle of the door 120 relative to the box 110 corresponding to the transition position where the difference gradually increases and then gradually decreases is between 50 degrees and 60 degrees, such as 50 degrees, 55 degrees, or 60 degrees.

[0024] Based on the analysis of the motion trajectory, when the opening angle of the door 120 relative to the housing 110 is 45 degrees, the degree of compression on the housing 110 and the extent to which it exceeds the housing assembly are greater. Therefore, when the door 120 is opened to 45 degrees from the closed state, it tends to move away from the first and second reference planes relative to the housing 110. Consequently, the difference between the designed second included angle θ12 and the first included angle θ11 gradually increases. However, if the door 120 continues to move away from the first and second reference planes as it continues to open, it is easy for the door 120 to move excessively away from the housing 110, resulting in instability. Therefore, after 45 degrees, it is necessary to prevent the door 120 from moving away from the first and second reference planes. Furthermore, it is necessary to control the door 120 from moving away from the housing 110. Therefore, the difference between the second included angle θ12 and the first included angle θ11 is designed to gradually increase and then gradually decrease.

[0025] Furthermore, the theoretical scenario is that the difference between the second included angle θ12 and the first included angle θ11 gradually decreases after the door 120 is opened to 45 degrees. Considering the smoothness of the hinge when the door 120 is opened, in this embodiment, the actual opening angle of the door 120 relative to the box 110 corresponding to the transition position where the difference gradually increases to gradually decreases is between 50 degrees and 60 degrees, such as 50 degrees, 55 degrees, or 60 degrees.

[0026] As the door 120 further opens, the movement trend of the hinge point continues the trend from the first opening angle. Specifically, the first included angle θ11 gradually increases from the second initial angle to the second ending angle. The second initial angle ranges from +1 degree to +11 degree, for example, +1 degree, +6 degree, or +11 degree. The second ending angle ranges from +36 degree to +46 degree, for example, +36 degree, +41 degree, or +46 degree. The change in the second included angle θ12 is from the third initial angle to the third ending angle. The third initial angle ranges from +65 degree to +75 degree, for example, +65 degree, +70 degree, or +75 degree. The third ending angle ranges from +108 degree to +118 degree, for example, +118 degree, +123 degree, or +118 degree. As the door 120 opens from the first opening angle to the second opening angle, the larger the opening angle, the longer the movement trajectory of the inner shaft 160 relative to the inner groove 140 is compared to the longer movement trajectory of the outer shaft 170 relative to the outer groove 150. The ratio of these two values ​​ranges from 2.1 to 2.3, for example, 2.1, 2.16, 2.2, or 2.3, so that the door 120 can move relative to the housing 110 along... Figure 2 The rotation is shown to be counterclockwise.

[0027] In designing the hinge assembly of this embodiment, the main focus is on designing the shaft and groove structures. To ensure structural stability, the groove cannot be too close to the edge of the door or housing. Therefore, in this embodiment, the distance between the shaft axis and the reference plane is further limited. Assuming the thickness of the door 120 (i.e., the length of the door 120 in the direction parallel to the second reference plane 124) is t, during the process of the door 120 opening relative to the housing 110 from the closed position to its maximum angle under the action of the hinge assembly 130, the distance between the axis of the inner shaft 160 and the first reference plane 123 ranges from 0.75t to 0.77t, for example, 0.75t, 0.76t, or 0.77t, etc. The distance from the axis of the inner shaft 160 to the second reference plane 124 is... The distance between 24 and the first reference plane 123 is between 0.79t and 0.81t, for example, 0.79t, 0.80t, or 0.81t. The distance between the outer shaft 170 and the first reference plane 123 is between 0.59t and 0.61t, for example, 0.59t, 0.60t, or 0.61t. The distance between the outer shaft 170 and the second reference plane 124 is between 0.49t and 0.51t, for example, 0.49t, 0.50t, or 0.51t.

[0028] For the process of the door opening from the first opening angle to the second opening angle, the first included angle θ11 gradually increases from the second initial angle with an absolute value of less than 90 degrees to the second termination angle, and the second included angle θ12 gradually increases from the third initial angle, which is positive and less than 90 degrees, to the third termination angle. The difference between the second included angle θ12 and the first included angle θ11 at the same actual opening angle of the door 120 relative to the box 110 gradually increases at least first.

[0029] As the difference between the second included angle θ12 and the first included angle θ11 gradually increases, the door 120 tends to move away from the first and second reference planes relative to the housing 110. Therefore, the door will not excessively compress the housing or extend beyond the side of the housing assembly. Thus, for the motion design of this hinge point, the first opening angle can be the closing angle, and the second opening angle can be any angle. That is, during the opening process from the closed state, the hinge point design during the transition from the first opening angle to the second opening angle can be directly used.

[0030] See Figure 2 , Figure 3 , Figures 5 to 7 In this embodiment, the hinge assembly is further defined from another perspective. During the process of the door 120 opening from the closed position to the maximum angle relative to the box 110 under the action of the hinge assembly 130, the first hinge point moves from the starting position to the ending position. The door 120 is further provided with a reference point, which coincides with the first hinge point and remains relatively stationary relative to the box 110 during the opening process of the door 120. The reference point has a first perpendicular line to the outer edge 122, and a first vertical distance D1 along the first perpendicular line to the outer edge 122. The reference point has a second perpendicular line to the inner edge 121, and a second vertical distance D2 along the second perpendicular line to the inner edge 121. The first perpendicular line has a third included angle θ13 with the first reference plane 123, and the second perpendicular line has a fourth included angle θ14 with the first reference plane 123.

[0031] See Figure 2 , Figure 3 , Figure 6 and Figure 7 In this embodiment, during the process of the door 120 rotating from the closed state to the first opening angle relative to the box 110, the first vertical distance D1 and the second vertical distance D2 gradually decrease, the third included angle θ13 gradually decreases within the range of 0 degrees to 90 degrees, and the fourth included angle θ14 gradually increases within the range of 0 degrees to 90 degrees.

[0032] From the perspective of motion trajectory, during the opening process of the door 120, the reference point remains unchanged, the third included angle θ13 decreases, and therefore the outer edge 122 tends to move towards the first reference plane, corresponding to the opening process of the door. Furthermore, the first vertical distance D1 decreases, so the outer edge 122 will not move too far away from the side of the second reference plane away from the opening, that is, the door 120 will not extend excessively beyond the side of the box assembly.

[0033] Similarly, as the fourth included angle θ14 increases, the inner edge 121 tends to move away from the second reference plane, corresponding to the opening process of the door. Meanwhile, the second vertical distance D2 decreases, so the inner edge 121 will not move too far toward the opening, meaning the door 120 will not excessively compress the box 110.

[0034] Furthermore, from a mathematical perspective, the distance between the reference point and the second reference plane 124 is D1*cosθ13. As D1 decreases, cosθ13 increases, showing an inverse relationship. This can reduce the distance by which the door 120 extends beyond the side of the box 110 (i.e., the second reference plane 124) during the opening process. At the same time, since the distance between the reference point and the first reference plane 123 is D2*sinθ14, as D2 decreases, sinθ14 increases, showing an inverse relationship. This can reduce the distance by which the door 120 squeezes the box 110 during the opening process.

[0035] In this embodiment, the reference point corresponds to the first hinge point. In order to optimize the position setting of the first hinge point and the second hinge point, the first hinge point is set closer to the second reference plane. Therefore, at the same actual opening angle of the door 120, the first vertical distance D1 is less than the second vertical distance D2, and the third included angle θ13 is less than the fourth included angle θ14.

[0036] During the opening of the door, based on the movement direction of the outer edge 122 in this embodiment, the movement change of the outer edge 122 becomes larger and larger. Therefore, the first vertical distance D1 corresponds to the change in the door 120 per unit opening angle, which gradually increases. Meanwhile, the movement change of the inner edge 121 becomes smaller and smaller. Therefore, the second vertical distance D2 corresponds to the change in the door 120 per unit opening angle, which gradually decreases.

[0037] Specifically, in designing the hinge assembly of this embodiment, the main focus is on designing the shaft and groove structure. To ensure the stability of the structure, the groove cannot be too close to the edge of the door or box. Therefore, the first vertical distance D1 gradually decreases from a range of 0.63t to 0.65t (e.g., 0.63t, 0.64t, or 0.65t) to a range of 0.57t to 0.59t (e.g., 0.57t, 0.58t, or 0.59t), and the second vertical distance D2 gradually decreases from a range of 0.78t to 0.80t (e.g., 0.78t, 0.79t, or 0.80t) to a range of 0.59t to 0.61t (e.g., 0.59t, 0.60t, or 0.61t).

[0038] In this embodiment, the third included angle θ13 gradually decreases from a range of 39 degrees to 41 degrees (e.g., 39 degrees, 40 degrees, or 41 degrees) to a range of 35 degrees to 37 degrees (e.g., 35 degrees, 36 degrees, or 37 degrees), and the fourth included angle θ14 gradually increases from a range of 49 degrees to 51 degrees (e.g., 49 degrees, 50 degrees, or 51 degrees) to a range of 79 degrees to 81 degrees (e.g., 79 degrees, 80 degrees, or 81 degrees).

[0039] See also Figure 8 In this embodiment, there is a first product between the first vertical distance D1 and the cosine of the third included angle θ13. When the door 120 is in the closed state, the cosine of the first vertical distance D1 and the third included angle θ13 is the first initial product. Figure 6 The distance beyond the box shown is the difference between the first product and the first initial product. During the process of the door 120 rotating and opening relative to the box 110 from the closed state to the first opening angle, the difference between the maximum and minimum values ​​of the first product is less than 0.1t, such as 0.1t, 0.05t, or 0.02t, so that the opening process of the door 120 relative to the box 110 is more stable, and the first product remains constant or gradually decreases so that the door 120 does not exceed the side of the box 110 during the opening process.

[0040] See also Figure 9 In this embodiment, there is a second product between the second vertical distance D2 and the sine of the fourth included angle θ14. When the door 120 is in the closed state, the sine of the second vertical distance D2 and the fourth included angle θ14 is the second initial product. Figure 9The distance between the squeezed box shown is the difference between the second product and the second initial product. During the process of the door 120 rotating and opening relative to the box 110 from the closed state to the first opening angle, the difference between the maximum and minimum values ​​of the second product is less than 0.1t, such as 0.1t, 0.05t, or 0.02t, so that the opening process of the door 120 relative to the box 110 is more stable. Furthermore, the second product remains constant or gradually decreases so that the door 120 does not squeeze the box 110 excessively during the opening process.

[0041] During the process of the door 120 opening from the first opening angle to the second opening angle relative to the box 110, the first vertical distance D1 gradually decreases, the third included angle θ13 gradually decreases within the range of 0 degrees to 90 degrees, the fourth included angle θ14 gradually increases from less than 90 degrees to greater than 90 degrees, the second vertical distance D2 first gradually decreases and then gradually increases, and within the predetermined angle range before the second opening angle, the sine value of the fourth included angle θ14 decreases while the second vertical distance D2 increases.

[0042] See Figure 3 , Figures 5 to 7 In this embodiment, during the process of the door 120 rotating and opening relative to the box 110 from the first opening angle to the second opening angle, the first vertical distance D1 gradually decreases, the third included angle θ13 gradually decreases within the range of 0 degrees to 90 degrees, the fourth included angle θ14 gradually increases, and exceeds 90 degrees within a predetermined angle range at least before the second opening angle, and the second vertical distance D2 gradually increases within a predetermined angle range. Similarly, since the distance between the reference point and the second reference plane 124 is D1*cosθ13, D1 decreases while cosθ13 increases, showing an inverse change, which can reduce the distance by which the door 120 exceeds the side of the box 110 (i.e., the second reference plane 124) during the opening process. At the same time, since the distance between the reference point and the first reference plane 123 is D2*sinθ14, D2 increases within the predetermined angle range while sinθ14 decreases, showing an inverse change, which can reduce the distance by which the door 120 squeezes the box 110 during the opening process.

[0043] Based on the above process of opening from the closed state to the first opening angle, and the process of opening from the first opening angle to the second opening angle, it can be seen that the design concept based on the first opening angle to the second opening angle can also solve the problem of excessive compression of the box and exceeding the side of the box components. Therefore, this design concept can be applied to the process of opening from the closed state to the first opening angle. That is, the first opening angle can also be considered as the corresponding closed state, and the second opening angle can be any angle.

[0044] In this embodiment, the fourth included angle θ14 gradually increases from less than 90 degrees to greater than 90 degrees, and the second vertical distance D2 first gradually decreases and then gradually increases, so as to achieve smooth movement of the outer shaft 170 relative to the outer groove 150, thereby making the rotation of the door 120 more stable.

[0045] In this embodiment, the first vertical distance D1 gradually decreases from 0.57t to 0.59t (e.g., 0.57t degrees, 0.58t degrees, or 0.59t degrees) to 0.50t to 0.52t (e.g., 0.50t degrees, 0.51t degrees, or 0.52t degrees), while the second vertical distance D2 gradually increases from 0.59t to 0.61t (e.g., 0.59t degrees, 0.60t degrees, or 0.61t degrees).

[0046] In this embodiment, as the opening angle of the door 120 increases, the maximum opening angle 13 of the third included angle θ gradually decreases from the range of 35 degrees to 37 degrees to the range of 2 degrees to 4 degrees, and the fourth included angle θ14 gradually increases from the range of 79 degrees to 81 degrees to the range of 125 degrees to 127 degrees.

[0047] During the process of opening the door 120 from the closed state to the maximum opening angle, the outer groove 150 and the inner groove 140 move synchronously with the door 120. Initially, the outer shaft 170 is located at one end of the outer groove 150, and the inner shaft 160 is located at one end of the inner groove 140. At the end of the movement, the outer shaft 170 is located at the other end of the outer groove 150, and the inner shaft 160 is located at the other end of the inner groove 140. Furthermore, the position of the outer shaft 170 relative to the outer groove 150 moves from one end of the outer groove 150 to the other end. Thus, while achieving a non-retrograde rotation of the door 120 from the first opening angle to the maximum opening angle, it also prevents the door 120 from excessively compressing the housing 110 initially, and ensures that the door 120 does not move excessively away from the housing 110 as it continues to open. The maximum opening angle is the third opening angle.

[0048] Furthermore, during the process of the door 120 opening from the closed state to the second opening angle relative to the housing 110, the outer shaft 170 moves continuously from one end of the outer groove 150 to the other end relative to the outer groove 150, and the inner shaft 160 moves continuously from one end of the inner groove 140 to the other end relative to the inner groove 140. This method ensures that the movement of the outer shaft 170 and inner shaft 160 is continuous without retraction during the process of the door 120 opening from the closed state to the second opening angle, thereby improving the stability of the door 120 during opening.

[0049] It can be seen that while achieving smooth rotation of the door 120 without backlash during the process of opening from the first opening angle to the second opening angle, it also prevents the door 120 from excessively squeezing the box 110 and prevents the door 120 from excessively moving away from the box 110 as it continues to open.

[0050] See also Figure 10 In this embodiment, there is a first product between the first vertical distance D1 and the cosine of the third included angle θ13. When the door 120 is in the closed state, the cosine of the first vertical distance D1 and the third included angle θ13 is the first initial product. Figure 10 The distance beyond the box shown is the difference between the first product and the first initial product. During the process of the door 120 rotating and opening relative to the box 110 from the first opening angle to the second opening angle, the difference between the maximum and minimum values ​​of the first product is less than 0.1t, such as 0.1t, 0.05t, or 0.02t, so that the opening process of the door 120 relative to the box 110 is more stable, and the first product remains constant or gradually decreases so that the door 120 does not exceed the side of the box 110 during the opening process.

[0051] See also Figure 11 In this embodiment, there is a second product between the second vertical distance D2 and the sine of the fourth included angle θ14. When the door 120 is in the closed state, the sine of the second vertical distance D2 and the fourth included angle θ14 is the second initial product. Figure 11 The distance between the extruded boxes shown is the difference between the second product and the second initial product. During the process of the door 120 rotating and opening relative to the box 110 from the first opening angle to the second opening angle, the second product gradually decreases at least within the preset angle range.

[0052] In this embodiment, the difference between the second product when the door 120 is at the second opening angle and the second product when the door 120 is at the first opening angle is no greater than -0.1t, such as -0.1t, -0.05t, or -0.02t, so that the opening process of the door 120 relative to the box 110 is more stable, and the door 120 will not excessively squeeze the box 110 during the rotation opening process relative to the box 110.

[0053] In this embodiment, the second product corresponds to the gradual increase in the change range of the door 120 per unit opening angle.

[0054] In addition, the hinge assembly in this application is usually designed with a slot shaft structure. The shape of the slot determines the movement state of the door relative to the box. Obviously, in addition to the above-mentioned problems of avoiding excessive compression of the box by the door and excessive extension of the side of the box assembly, there is also the problem of the door getting stuck in the movement relative to the box.

[0055] Please continue reading Figures 1 to 3 The hinge of this embodiment can be further defined from another perspective. The door 120 further has a rear wall plane 125 and a side wall plane 126. In this application, the front wall plane (not shown in the figure) is defined as passing through the outer edge 122 and parallel to the plane where the opening is located when the door 120 is in the closed state. The rear wall plane 125 is defined as passing through the inner edge 121 and parallel to the plane where the opening is located when the door 120 is in the closed state. The side wall plane 126 is defined as passing through the outer edge 122 and perpendicular to the plane where the opening is located when the door 120 is in the closed state. Both of them move synchronously with the door 120 during the opening process. The door thickness t is the distance between the front wall plane and the rear wall plane 125.

[0056] In this embodiment, the inner groove 140 has a first inner groove segment 141, and the outer groove 150 has a first outer groove segment 151. The termination position of the first inner groove segment 141 is closer to the rear wall plane 125 and the side wall plane 126 than the starting position of the first inner groove segment 141. The termination position of the first outer groove segment 151 is also closer to the rear wall plane 125 and the side wall plane 126 than the starting position of the first outer groove segment 151. When the door 120 rotates relative to the box 110 from the closed state under the action of the hinge assembly 130... During the process of opening to the first opening angle, the outer shaft 170 moves relative to the outer groove 150 from the starting position to the ending position of the first outer groove segment 151, and the inner shaft 160 simultaneously moves relative to the inner groove 140 from the starting position to the ending position of the first inner groove segment 141. During the process of the door 120 rotating relative to the box 110 from a closed state to the first opening angle, the second movement direction remains tilted relative to the first movement direction. If the two movement directions are parallel, the door's movement will become jerky. In this embodiment, the two movement directions remain tilted, thus solving the jerky problem.

[0057] See also Figure 12 In this embodiment, there is a first angle α1 between the first direction of movement and the rear wall plane 125, and a second angle α2 between the second direction of movement and the rear wall plane 125. At the same actual opening angle of the door 120 relative to the box 110, the second angle α2 is greater than the first angle α1. As the door 120 rotates from the closed state to the first opening angle, the first angle α1 and the second angle α2 gradually decrease, and the difference between the second angle α2 and the first angle α1 gradually increases. This can reduce the distance from the outer shaft 170 to the inner edge 121 and the outer edge 122. Similarly to the previous description, this can prevent the door 120 from going beyond the side of the box 110 (i.e., the plane where the side wall plane 126 is located when the door 120 is in the closed state) and from excessively squeezing the box 110 during the opening process.

[0058] In this embodiment, the first outer groove segment 151 is further provided with a transition position between the starting position and the ending position of the first outer groove segment 151. The transition position of the first outer groove segment 151 is closer to the rear wall plane 125 and the side wall plane 126 than the starting position of the first outer groove segment 151. The ending position of the first outer groove segment 151 is closer to the side wall plane 126 and farther away from the rear wall plane 125 than the transition position of the first outer groove segment 151. The second included angle α2 is represented in positive form. When the first movement direction is away from the rear wall plane 125, the first included angle α1 is represented in positive form. When the first movement direction is towards the rear wall plane 125, the first included angle α1 is represented in negative form.

[0059] In this embodiment, the first included angle α1 gradually decreases from a range of +45 degrees to +55 degrees (e.g., +45 degrees, +50 degrees, or +55 degrees) to a range of -16 degrees to -26 degrees (e.g., -16 degrees, -21 degrees, or -26 degrees), and the second included angle α2 gradually decreases from a range of +68 degrees to +78 degrees (e.g., +68 degrees, +73 degrees, or +78 degrees) to a range of +37 degrees to +47 degrees (e.g., +37 degrees, +42 degrees, or +47 degrees).

[0060] In this embodiment, the difference between the second included angle α2 and the first included angle α1 gradually increases from a range of +13 degrees to +23 degrees (e.g., +13 degrees, +18 degrees, or +23 degrees) to a range of +63 degrees to +73 degrees (e.g., +63 degrees, +68 degrees, or +73 degrees).

[0061] In this embodiment, the ratio of the trajectory length of the inner shaft 160 along the first inner groove segment 141 to the trajectory length of the outer shaft 170 along the first outer groove segment 151 is between 1.2 and 1.4, for example, 1.2, 1.3, or 1.4, so that the door 120 can be positioned relative to the housing 110 along... Figure 10 The rotation is shown to be counterclockwise.

[0062] In this embodiment, the inner tank 140 includes a second inner tank section 142 connecting the first inner tank section 141, and the outer tank 150 includes a second outer tank section 152 connecting the first outer tank section 151. The termination position of the second inner tank section 142 is closer to the rear wall plane 125 and the side wall plane 126 than the starting position of the second inner tank section 142. The termination position of the second outer tank section 152 is closer to the side wall plane 126 and farther away from the rear wall plane 125 than the starting position of the second outer tank section 152.

[0063] As the door 120 rotates and opens relative to the housing 110 from the first opening angle to the second opening angle under the action of the hinge assembly 130, the outer shaft 170 moves relative to the outer groove 150 from the starting position to the ending position of the second outer groove segment 152. The movement of the outer shaft 170 relative to the outer groove 150 begins at the starting position of the second outer groove segment 152 and ends at the ending position of the second outer groove segment 152. Simultaneously, the inner shaft 160 moves relative to the inner groove 142 from the starting position to the ending position of the second inner groove segment 142. The inner shaft 160 moves synchronously relative to the inner groove 140, starting at the starting position of the second inner groove segment 142 and ending at the ending position of the inner groove segment 142. The second inner groove section 142 is the termination position. When the door 120 rotates and opens relative to the box 110 from the first opening angle to the second opening angle, the second included angle α2 gradually increases, the first included angle α1 first gradually decreases and then gradually increases, and the difference between the second included angle α2 and the first included angle α1 first gradually increases and then gradually decreases. This can reduce the distance from the outer shaft 170 to the inner edge 121 and the outer edge 122, so as to offset the increase in the projection line of the line connecting the outer shaft 170 and the outer edge 122 on the first reference plane 123, and the increase in the distance between the outer shaft 170 and the first reference plane 123. This can prevent the door 120 from going beyond the side of the box 110 and excessively squeezing the box 110 during the opening process.

[0064] In this embodiment, the ratio of the trajectory length of the inner shaft 160 along the second inner groove segment 142 to the trajectory length of the outer shaft 170 along the second outer groove segment 152 ranges from 2.1 to 2.3, for example, 2.1, 2.2, or 2.3, so that the door 120 can be positioned relative to the housing 110 along... Figure 10 The rotation is shown to be counterclockwise.

[0065] In this embodiment, as the door 120 rotates and opens relative to the box 110 from the first opening angle to the second opening angle, the sum of the first included angle α1 and the corresponding actual opening angle of the door 120 gradually increases.

[0066] In this embodiment, the second included angle α2 gradually increases from a range of +37 degrees to +47 degrees (e.g., +37 degrees, +42 degrees, or +47 degrees) to a range of +49 degrees to +59 degrees (e.g., +49 degrees, +54 degrees, or +59 degrees). The first included angle α1 first gradually decreases from a range of -16 degrees to -26 degrees (e.g., -16 degrees, -21 degrees, or -26 degrees) to a range of -34 degrees to -44 degrees (e.g., -34 degrees, -39 degrees, or -44 degrees), and then gradually increases to a range of -13 degrees to -23 degrees (e.g., -13 degrees, -18 degrees, or -23 degrees).

[0067] In this embodiment, the difference between the second included angle α2 and the first included angle α1 first gradually increases from a range of +58 degrees to +68 degrees (e.g., +58 degrees, +63 degrees, or +68 degrees) to a range of +85 degrees to +95 degrees (e.g., +85 degrees, +90 degrees, or +95 degrees), and then gradually decreases to a range of +67 degrees to +77 degrees (e.g., +67 degrees, +72 degrees, or +77 degrees). The change in the difference between the second included angle α2 and the first included angle α1 during the increase process corresponds to a greater change in the door body 120 per unit opening angle than the change in the difference during the decrease process.

[0068] In this embodiment, the actual opening angle of the door 120 corresponding to the transition position of the difference between the second included angle α2 and the first included angle α1 is between 50 degrees and 60 degrees, such as 50 degrees, 55 degrees or 60 degrees.

[0069] In this embodiment, when the door 120 is in the closed state, the distance from the center of the inner shaft 160 to the rear wall plane 125 is between 0.75t and 0.77t, for example, 0.75t, 0.76t, or 0.77t; the distance from the center of the inner shaft 160 to the side wall plane 126 is between 0.79t and 0.81t, for example, 0.79t, 0.80t, or 0.81t; the distance from the center of the outer shaft 170 to the rear wall plane 125 is between 0.59t and 0.61t, for example, 0.59t, 0.60t, or 0.61t; the distance from the center of the outer shaft 170 to the side wall plane 126 is between 0.49t and 0.51t, for example, 0.49t, 0.50t, or 0.51t.

[0070] When the door 120 is at the first opening angle, the distance from the center of the inner shaft 160 to the rear wall plane 125 is between 0.51t and 0.53t, for example, 0.51t, 0.52t, or 0.53t; the distance from the center of the inner shaft 160 to the side wall plane 126 is between 0.64t and 0.66t, for example, 0.64t, 0.65t, or 0.66t; the distance from the center of the outer shaft 170 to the rear wall plane 125 is between 0.50t and 0.52t, for example, 0.50t, 0.51t, or 0.52t; the distance from the center of the outer shaft 170 to the side wall plane 126 is between 0.30t and 0.32t, for example, 0.30t, 0.31t, or 0.32t.

[0071] When the door 120 is at the second opening angle, the distance from the center of the inner shaft 160 to the rear wall plane 125 is between 0.37t and 0.39t, for example, 0.37t, 0.38t, or 0.39t; the distance from the center of the inner shaft 160 to the side wall plane 126 is between 0.52t and 0.54t, for example, 0.52t, 0.53t, or 0.54t; the distance from the center of the outer shaft 170 to the rear wall plane 125 is between 0.55t and 0.57t, for example, 0.55t, 0.56t, or 0.57t; the distance from the center of the outer shaft 170 to the side wall plane 126 is between 0.22t and 0.24t, for example, 0.22t, 0.23t, or 0.24t.

[0072] In this embodiment, the inner groove 140 includes a third inner groove segment 143 connecting the second inner groove segment 142. The third inner groove segment 143 is an arc centered on the end position of the second outer groove segment 152. When the door 120 rotates relative to the box 110 from the second opening angle to the third opening angle under the action of the hinge assembly 120, the outer shaft 170 rotates relative to the outer groove 150 at the end position of the second outer groove segment 152. Simultaneously, the inner shaft 160 moves relative to the inner groove 140 from the starting position of the third inner groove segment 143 to the end position of the third inner groove segment 143.

[0073] In this embodiment, the range of the third opening angle is between 122 degrees and 132 degrees, such as 122 degrees, 127 degrees or 132 degrees.

[0074] See Figure 13 The second embodiment of the housing assembly 20 of this application includes a housing 210, a door 220, and a hinge assembly 230. The housing 210 forms an accommodating space with an opening. The door 220 covers the opening and can seal it. The hinge assembly 230 is disposed on the pivot side of the housing 210 and is used to pivotally connect the housing 210 and the door 220. The definitions of the inner edge 221 and outer edge 222 of the door 220, the first reference plane 223, and the second reference plane 224 are the same as those in the first embodiment of the housing assembly 10 described above, and will not be repeated here.

[0075] The difference between this embodiment and the previous embodiment is that, in this embodiment, the inner groove 240 and outer shaft 250 of the hinge assembly 230 are disposed on the door body 220, and the inner shaft 260 and outer groove 270 of the hinge assembly 230 are disposed on the housing 210. The outer groove 270 cooperates with the outer shaft 250 to form a first hinge point at the axis of the outer shaft 250, and the inner groove 240 cooperates with the inner shaft 260 to form a second hinge point at the axis of the inner shaft 260. The second hinge point is located further away from the outer edge 222 than the first hinge point. Clearly, the hinge point design in this embodiment is the same as in the previous embodiment.

[0076] During the opening of the door 220 relative to the box 210 under the action of the hinge assembly 230, the door 220 has a first direction of movement relative to the box 210 at the first hinge point and a second direction of movement relative to the box 210 at the second hinge point. The first direction of movement has a first angle θ21 with the first reference plane 223, and the second direction of movement has a second angle θ22 with the first reference plane 223. The definitions of the first angle θ21 and the second angle θ22 are as described in the first embodiment of the box assembly 10 above, and will not be repeated here.

[0077] See also Figure 14 and Figure 15 During the process of the door 220 rotating from the closed state to the first opening angle, the second included angle θ22 is positive and less than 90 degrees, and the first included angle θ21 gradually decreases from the first initial angle (positive and less than 90 degrees) to the first final angle. The difference between the second included angle θ22 and the first included angle θ21 at the same actual opening angle of the door 220 relative to the housing 210 gradually increases. From the perspective of motion relationship, the above-mentioned motion trend of the two hinge points corresponds to the motion of the door relative to the housing, including rotation and movement. The movement has a tendency to move away from the first reference plane and the second reference plane, which cancels the tendency of the door to squeeze the housing and extend beyond the side of the housing assembly during rotation. Therefore, the door assembly of this application can ensure that the door does not excessively squeeze the housing or extend too far beyond the side of the housing assembly.

[0078] In this embodiment, the range of the first opening angle is between 25 degrees and 31 degrees, such as 25 degrees, 27 degrees or 31 degrees.

[0079] In this embodiment, the range of the first initial angle is between +33 degrees and +23 degrees, such as +33 degrees, +28 degrees, or +23 degrees, etc., the range of the first termination angle is between -5 degrees and -15 degrees, such as -5 degrees, -10 degrees, or -15 degrees, etc., and the range of the second included angle θ22 is between +78 degrees and +64 degrees, such as +78 degrees, +72 degrees, or +64 degrees, etc.

[0080] In this embodiment, when the door 220 rotates open from the closed state to the first opening angle, the ratio of the length of the movement trajectory of the inner shaft 260 relative to the inner groove 240 to the length of the movement trajectory of the outer shaft 250 relative to the outer groove 270 ranges from 1.5 to 1.7, for example, 1.5, 1.56, 1.6, or 1.7, so that the door 220 can move relative to the housing 210 along... Figure 10 The rotation is shown to be counterclockwise.

[0081] See also Figure 16 During the process of the door 220 rotating from the first opening angle to the second opening angle, the first included angle θ21 gradually increases from the second initial angle with an absolute value less than 90 degrees to the second termination angle, and the second included angle θ22 gradually increases from the third initial angle, which is expressed as a positive number and is less than 90 degrees, to the third termination angle. The difference between the second included angle θ22 and the first included angle θ21 at the same actual opening angle of the door 220 relative to the box 210 gradually increases at least first, so as to offset the increase of the projection line of the line connecting the outer shaft 250 and the outer edge 222 on the first reference plane 223, and the increase of the projection line of the line connecting the outer shaft 250 and the inner edge 221 on the second reference plane 224. This can prevent the door 220 from going beyond the side of the box 210 (i.e., the second reference plane 224) and excessively squeezing the box 210 during the opening process.

[0082] In this embodiment, the range of the second opening angle is between 57 degrees and 60 degrees, such as 57 degrees, 58 degrees or 60 degrees.

[0083] In this embodiment, the range of the second initial angle is between -5 degrees and -15 degrees, such as -5 degrees, -10 degrees or -15 degrees, etc.; the range of the second termination angle is between +37 degrees and +47 degrees, such as +37 degrees, +42 degrees or +47 degrees, etc.; the range of the third initial angle is between +65 degrees and +75 degrees, such as +65 degrees, +70 degrees or +75 degrees, etc.; and the range of the third termination angle is between +108 degrees and +118 degrees, such as +118 degrees, +123 degrees or +118 degrees, etc.

[0084] In this embodiment, when the door 220 rotates open from the first opening angle to the second opening angle, the ratio of the length of the movement trajectory of the inner shaft 260 relative to the inner groove 240 to the length of the movement trajectory of the outer shaft 250 relative to the outer groove 270 ranges from 2.1 to 2.3, for example, 2.1, 2.18, 2.2, or 2.3, so that the door 220 can move relative to the housing 210 along... Figure 10 The rotation is shown to be counterclockwise.

[0085] In this embodiment, the thickness of the door 220 (i.e., the length of the door 220 in the direction parallel to the second reference plane 224) is t. During the process of the door 220 rotating relative to the housing 210 from the closed position to its maximum angle under the action of the hinge assembly 230, the distance between the axis of the inner shaft 260 and the first reference plane 223 ranges from 0.75t to 0.77t, for example, 0.75t, 0.76t, or 0.77t, etc. The inner shaft 260's... The distance between the axis and the second reference plane 224 ranges from 0.79t to 0.81t, for example, 0.79t, 0.80t, or 0.81t. When the door 220 is in the closed state, the distance between the outer shaft 250 and the first reference plane 223 ranges from 0.55t to 0.57t, for example, 0.55t, 0.56t, or 0.57t. The distance between the outer shaft 250 and the second reference plane 224 ranges from 0.2t. The distance between the axis of the outer shaft 250 and the first reference plane 223 is between 0.59t and 0.61t, for example, 0.59t, 0.60t, or 0.61t, when the door 220 is at the first opening angle; the distance between the axis of the outer shaft 250 and the second reference plane 224 is between 0.40t and 0.42t, for example, 0.4t. 0t, 0.41t, or 0.42t, etc.; when the door body 220 is at the second opening angle, the distance between the axis of the outer shaft body 250 and the first reference plane 223 is between 0.59t and 0.61t, for example, 0.59t, 0.60t, or 0.61t, etc., and the distance between the axis of the outer shaft body 250 and the second reference plane 224 is between 0.49t and 0.51t, for example, 0.49t, 0.50t, or 0.51t, etc.

[0086] In this embodiment, the door body 220 is further provided with a reference point. The reference point coincides with the axis of the outer shaft body 250 when the outer shaft body 250 is at the end position of the outer groove body 270. The change process of the first vertical distance from the reference point to the outer edge 222 and the second vertical distance to the inner edge 221 is similar to that in the first embodiment of the box assembly 10, and will not be described again here.

[0087] See Figure 17The third embodiment of the housing assembly 30 of this application includes a housing 310, a door 320, and a hinge assembly 330. The housing 310 forms an accommodating space with an opening. The door 320 covers the opening and can seal it. The hinge assembly 330 is disposed on the pivot side of the housing 310 and is used to pivotally connect the housing 310 and the door 320. The definitions of the inner edge 321 and outer edge 322, the first reference plane 323 and the second reference plane 324 of the door 320 are the same as those in the first embodiment of the housing assembly 10 described above, and will not be repeated here.

[0088] The difference between this embodiment and the above embodiment is that, in this embodiment, the inner shaft 340 and the outer groove 350 of the hinge assembly 330 are disposed on the door body 320, and the inner groove 360 ​​and the outer shaft 370 of the hinge assembly 330 are disposed on the box body 310. The outer groove 350 cooperates with the outer shaft 370 to form a first hinge point at the axis of the outer shaft 370, and the inner groove 360 ​​cooperates with the inner shaft 340 to form a second hinge point at the axis of the inner shaft 340. The second hinge point is disposed further away from the outer edge 322 than the first hinge point. During the opening of the door 320 relative to the housing 310 under the action of the hinge assembly 330, the door 320 has a first direction of movement relative to the housing 310 at the first hinge point and a second direction of movement relative to the housing 310 at the second hinge point. The first direction of movement has a first angle θ31 with the first reference plane 323, and the second direction of movement has a second angle θ32 with the first reference plane 323. The definitions of the first angle θ31 and the second angle θ32 are referred to the first embodiment of the housing assembly 10 described above, and will not be repeated here.

[0089] See also Figure 18 and Figure 19 During the process of the door 320 rotating from the closed state to the first opening angle, the second included angle θ32 is positive and less than 90 degrees, and the first included angle θ31 gradually decreases from the first initial angle (positive and less than 90 degrees) to the first final angle. The difference between the second included angle θ32 and the first included angle θ31 at the same actual opening angle of the door 320 relative to the housing 310 gradually increases. From the perspective of motion relationship, the above-mentioned motion trend of the two hinge points corresponds to the motion of the door relative to the housing, including rotation and movement. The movement has a tendency to move away from the first reference plane and the second reference plane, which offsets the tendency of the door to squeeze the housing and extend beyond the side of the housing assembly during rotation. Therefore, the door assembly of this application can ensure that the door does not excessively squeeze the housing or extend too far beyond the side of the housing assembly.

[0090] In this embodiment, the range of the first opening angle is between 25 degrees and 31 degrees, such as 25 degrees, 29 degrees or 31 degrees.

[0091] In this embodiment, the range of the first initial angle is between +55 degrees and +45 degrees, such as +55 degrees, +50 degrees or +45 degrees, etc., the range of the first termination angle is between +1 degree and +11 degrees, such as +1 degree, +6 degrees or +11 degrees, etc., and the range of the second included angle θ32 is between +0 degrees and +18 degrees, specifically between 5 degrees and 13 degrees, such as +0 degrees, +9 degrees or +18 degrees, etc., and gradually decreases.

[0092] In this embodiment, when the door 320 rotates open from the closed state to the first opening angle, the ratio of the length of the movement trajectory of the inner shaft 340 relative to the inner groove 360 ​​to the length of the movement trajectory of the outer shaft 370 relative to the outer groove 350 ranges from 1.5 to 1.7, such as 1.5, 1.58, 1.6, or 1.7, so that the door 320 can move relative to the housing 310 along... Figure 12 The rotation is shown to be counterclockwise.

[0093] See also Figure 20 During the process of the door 320 rotating from the first opening angle to the second opening angle, the first included angle θ31 gradually increases from the second initial angle with an absolute value less than 90 degrees to the second termination angle, and the second included angle θ32 gradually increases from the third initial angle, which is positive and less than 90 degrees, to the third termination angle. The difference between the second included angle θ32 and the first included angle θ31 at the same actual opening angle of the door 320 relative to the box 310 gradually increases at least first, so as to offset the increase of the projection line of the line connecting the outer shaft 370 and the outer edge 322 on the first reference plane 323, and the increase of the projection line of the line connecting the outer shaft 370 and the inner edge 321 on the second reference plane 324. This can prevent the door 320 from going beyond the side of the box 310 (i.e., the second reference plane 324) and excessively squeezing the box 310 during the opening process.

[0094] In this embodiment, the range of the second opening angle is between 57 degrees and 60 degrees, such as 57 degrees, 58 degrees or 60 degrees.

[0095] In this embodiment, the range of the second initial angle is between +1 degree and +11 degree, such as +1 degree, +6 degree or +11 degree, etc.; the range of the second termination angle is between +36 degree and +46 degree, such as +36 degree, +41 degree or +46 degree, etc.; the range of the third initial angle is between 0 degree and +10 degree, such as 0 degree, 5 degree or 10 degree, etc.; and the range of the third termination angle is between +45 degree and +55 degree, such as +45 degree, +50 degree or +55 degree, etc.

[0096] In this embodiment, when the door 320 rotates open from the first opening angle to the second opening angle, the ratio of the length of the movement trajectory of the inner shaft 340 relative to the inner groove 360 ​​to the length of the movement trajectory of the outer shaft 370 relative to the outer groove 350 ranges from 3.0 to 3.2, for example, 3.0, 3.1, 3.13, or 3.2, so that the door 320 can move relative to the housing 310 along... Figure 12 The rotation is shown to be counterclockwise.

[0097] In this embodiment, the thickness of the door 320 (i.e., the length of the door 320 in the direction parallel to the second reference plane 324) is t. During the process of the door 320 opening relative to the housing 310 from the closed position to its maximum angle under the action of the hinge assembly 330, the distance between the outer shaft 370 and the first reference plane 323 ranges from 0.59t to 0.61t, for example, 0.59t, 0.60t, or 0.61t. The axis of the outer shaft 370 is parallel to the second reference plane 324. The distance between the reference planes 324 ranges from 0.49t to 0.51t, for example, 0.49t, 0.50t, or 0.51t. When the door 320 is in the closed state, the distance between the axis of the inner shaft 340 and the first reference plane 323 ranges from 0.21t to 0.23t, for example, 0.21t, 0.22t, or 0.23t. The distance between the axis of the inner shaft 340 and the second reference plane 324 is 0. The distance between the axis of the inner shaft 340 and the first reference plane 323 is between 0.27t and 0.29t, for example, 0.27t, 0.28t, or 0.29t, when the door 320 is at the first opening angle; the distance between the axis of the inner shaft 340 and the second reference plane 324 is between 0.52t and 0.54t, for example, 0. 52t, 0.53t, or 0.54t, etc.; when the door 320 is at the second opening angle, the distance between the axis of the inner shaft 340 and the first reference plane 323 is between 0.37t and 0.39t, for example, 0.37t, 0.38t, or 0.39t, etc., and the distance between the axis of the inner shaft 340 and the second reference plane 324 is between 0.76t and 0.78t, for example, 0.76t, 0.77t, or 0.78t, etc.

[0098] In this embodiment, the door 320 is further provided with a reference point, which coincides with the first hinge point. The process of the change of the first vertical distance from the reference point to the outer edge 322 and the second vertical distance to the inner edge 321 is similar to that in the first embodiment of the box assembly 10, and will not be described again here.

[0099] See Figure 21The fourth embodiment of the housing assembly 40 of this application includes a housing 410, a door 420, and a hinge assembly 430. The housing 410 forms an accommodating space with an opening. The door 420 covers the opening and can seal it. The hinge assembly 430 is disposed on the pivot side of the housing 410 and is used to pivotally connect the housing 410 and the door 420. The definitions of the inner edge 421 and outer edge 422, the first reference plane 423 and the second reference plane 424 of the door 420 are the same as those in the first embodiment of the housing assembly 10 described above, and will not be repeated here.

[0100] The difference between this embodiment and the above embodiment is that, in this embodiment, the inner shaft 440 and the outer shaft 450 of the hinge assembly 430 are disposed on the door body 420, and the inner groove 460 and the outer groove 470 of the hinge assembly 430 are disposed on the box body 410. The outer groove 470 cooperates with the outer shaft 450 to form a first hinge point at the axis of the outer shaft 450, and the inner groove 460 cooperates with the inner shaft 440 to form a second hinge point at the axis of the inner shaft 440. The second hinge point is disposed further away from the outer edge 422 than the first hinge point. During the opening of the door 420 relative to the housing 410 under the action of the hinge assembly 430, the door 420 has a first direction of movement relative to the housing 410 at the first hinge point and a second direction of movement relative to the housing 410 at the second hinge point. The first direction of movement has a first angle θ41 with the first reference plane 423, and the second direction of movement has a second angle θ42 with the first reference plane 423. The definitions of the first angle θ41 and the second angle θ42 are as described in the first embodiment of the housing assembly 10 above, and will not be repeated here.

[0101] See also Figure 22 and Figure 23 During the process of the door 420 rotating from the closed state to the first opening angle, the second included angle θ42 is positive and less than 90 degrees, and the first included angle θ41 gradually decreases from the first initial angle (positive and less than 90 degrees) to the first final angle. The difference between the second included angle θ42 and the first included angle θ41 at the same actual opening angle of the door 420 relative to the housing 410 gradually increases. From the perspective of motion relationship, the above-mentioned motion trend of the two hinge points corresponds to the motion of the door relative to the housing, including rotation and movement. The movement has a tendency to move away from the first reference plane and the second reference plane, which cancels the tendency of the door to squeeze the housing and extend beyond the side of the housing assembly during rotation. Therefore, the door assembly of this application can ensure that the door does not excessively squeeze the housing or extend too far beyond the side of the housing assembly.

[0102] In this embodiment, the range of the first opening angle is between 25 degrees and 31 degrees, such as 25 degrees, 27 degrees or 31 degrees.

[0103] In this embodiment, the range of the first initial angle is between +33 degrees and +23 degrees, such as +33 degrees, +28 degrees, or +23 degrees, etc., the range of the first termination angle is between -5 degrees and -15 degrees, such as -5 degrees, -10 degrees, or -15 degrees, etc., and the range of the second included angle θ22 is between +0 degrees and +18 degrees, such as +0 degrees, +8 degrees, or +18 degrees, etc., and gradually decreases.

[0104] In this embodiment, when the door 420 rotates from the closed state to the first opening angle, the ratio of the length of the movement trajectory of the inner shaft 440 relative to the inner groove 460 to the length of the movement trajectory of the outer shaft 450 relative to the outer groove 470 ranges from 1.8 to 2.0, for example, 1.8, 1.87, 1.9, or 2.0, so that the door 420 can move relative to the housing 410 along... Figure 14 The rotation is shown to be counterclockwise.

[0105] See also Figure 24 During the process of the door 420 rotating from the first opening angle to the second opening angle, the first included angle θ41 gradually increases from the second initial angle with an absolute value of less than 90 degrees to the second termination angle, and the second included angle θ42 gradually increases from the third initial angle, which is expressed as a positive number and is less than 90 degrees, to the third termination angle. The difference between the second included angle θ42 and the first included angle θ41 at the same actual opening angle of the door 420 relative to the box 410 gradually increases at least first, so as to offset the increase of the projection line of the line connecting the outer shaft 450 and the outer edge 422 on the first reference plane 423, and the increase of the projection line of the line connecting the outer shaft 450 and the inner edge 421 on the second reference plane 424. This can prevent the door 420 from going beyond the side of the box 410 (i.e., the second reference plane 424) and excessively squeezing the box 410 during the opening process.

[0106] In this embodiment, the range of the second opening angle is between 57 degrees and 60 degrees, such as 57 degrees, 58 degrees or 60 degrees.

[0107] In this embodiment, the range of the second initial angle is between -5 degrees and -15 degrees, such as -5 degrees, -10 degrees or -15 degrees, etc.; the range of the second termination angle is between +37 degrees and +47 degrees, such as +37 degrees, +42 degrees or +47 degrees, etc.; the range of the third initial angle is between +0 degrees and +10 degrees, such as +0 degrees, +6 degrees or +10 degrees, etc.; and the range of the third termination angle is between +45 degrees and +55 degrees, such as +45 degrees, +51 degrees or +55 degrees, etc.

[0108] In this embodiment, when the door 420 rotates open from the first opening angle to the second opening angle, the ratio of the length of the movement trajectory of the inner shaft 440 relative to the inner groove 460 to the length of the movement trajectory of the outer shaft 450 relative to the outer groove 470 ranges from 3.0 to 3.2, for example, 3.0, 3.1, or 3.2, so that the door 420 can move relative to the housing 410 along... Figure 14 The rotation is shown to be counterclockwise.

[0109] In this embodiment, the thickness of the door body 420 (i.e., the length of the door body 420 in the direction parallel to the second reference plane 424) is t. When the door body 420 is in the closed state, the distance between the axis of the inner shaft body 440 and the first reference plane 423 ranges from 0.21t to 0.23t, for example, 0.21t, 0.22t, or 0.23t, etc. The distance between the axis of the inner shaft body 440 and the second reference plane 424 ranges from 0.17t to 0.19t, for example, 0.17t, 0.18t, or 0.19t, etc. The distance between the axis of the outer shaft body 450 and the first reference plane 423 ranges from... The distance between the outer shaft 450 and the second reference plane 424 ranges from 0.22t to 0.24t, for example, 0.22t, 0.23t, or 0.24t. When the door 420 is at the first opening angle, the distance between the inner shaft 440 and the first reference plane 423 ranges from 0.27t to 0.29t, for example, 0.27t, 0.28t, or 0.29t. The distance between the inner shaft 440 and the second reference plane 424 ranges from 0.52t. The distance between the axis of the outer shaft 450 and the first reference plane 423 ranges from 0.59t to 0.61t, for example, 0.59t, 0.60t, or 0.61t. The distance between the axis of the outer shaft 450 and the second reference plane 424 ranges from 0.40t to 0.42t, for example, 0.40t, 0.41t, or 0.42t. When the door 420 is at the second opening angle, the distance between the axis of the inner shaft 440 and the first reference plane 423 ranges from 0.37t to 0.39t. (The values ​​of 0.52t, 0.53t, or 0.54t are not specified in the original text.) The distances between the center of the inner shaft 440 and the second reference plane 424 range from 0.76t to 0.78t, for example, 0.76t, 0.77t, or 0.78t. The distances between the center of the outer shaft 450 and the first reference plane 423 range from 0.59t to 0.61t, for example, 0.59t, 0.60t, or 0.61t. The distances between the center of the outer shaft 450 and the second reference plane 424 range from 0.49t to 0.51t, for example, 0.49t, 0.50t, or 0.51t.

[0110] In this embodiment, the door body 420 is further provided with a reference point. The reference point coincides with the axis of the outer shaft body 450 when the outer shaft body 450 is at the end position of the outer groove body 470. The change process of the first vertical distance from the reference point to the outer edge 422 and the second vertical distance to the inner edge 421 is similar to that in the first embodiment of the box assembly 10, and will not be repeated here.

[0111] See Figure 25 The fifth embodiment of the housing assembly 50 of this application includes a housing 510, a door 520, and a hinge assembly 530. The housing 510 forms an accommodating space with an opening. The door 520 covers the opening and can seal it. The hinge assembly 530 is disposed on the pivot side of the housing 510 and is used to pivotally connect the housing 510 and the door 520. The definitions of the inner edge 521 and outer edge 522, the first reference plane 523 and the second reference plane 524 of the door 520 are the same as those in the first embodiment of the housing assembly 10 described above, and will not be repeated here.

[0112] The difference between this embodiment and the above embodiment is that, in this embodiment, the hinge assembly 530 includes a groove 540 disposed in the door body 520 and a shaft 550 disposed in the housing 510. The groove 540 and the shaft 550 cooperate to form a second hinge point at the axis of the shaft 550. The hinge assembly 530 further includes a connecting rod 560. One end of the connecting rod 560 is hinged to the door body 520 to form a first hinge point, and the other end of the connecting rod 560 is hinged to the housing 510. The second hinge point is disposed further away from the outer edge 522 than the first hinge point. During the opening of the door 520 relative to the box 510 under the action of the hinge assembly 530, the door 520 has a first direction of movement relative to the box 510 at the first hinge point and a second direction of movement relative to the box 510 at the second hinge point. The first direction of movement has a first angle θ51 with the first reference plane 523, and the second direction of movement has a second angle θ52 with the first reference plane 523. The definitions of the first angle θ51 and the second angle θ52 are as described in the first embodiment of the box assembly 10 above, and will not be repeated here.

[0113] See also Figure 26 During the process of the door 520 rotating from the closed state to the first opening angle, the second included angle θ52 is positive and less than 90 degrees, and the first included angle θ51 gradually decreases from the first initial angle (positive and less than 90 degrees) to the first final angle. The difference between the second included angle θ52 and the first included angle θ51 at the same actual opening angle of the door 520 relative to the housing 510 gradually increases. From the perspective of motion relationship, the above-mentioned motion trend of the two hinge points corresponds to the motion of the door relative to the housing, including rotation and movement. The movement has a tendency to move away from the first reference plane and the second reference plane, which offsets the tendency of the door to squeeze the housing and extend beyond the side of the housing assembly during rotation. Therefore, the door assembly of this application can ensure that the door does not excessively squeeze the housing or extend too far beyond the side of the housing assembly.

[0114] In this embodiment, the range of the first opening angle is between 25 degrees and 31 degrees, such as 25 degrees, 27 degrees or 31 degrees.

[0115] In this embodiment, the range of the first initial angle is between +36 degrees and +26 degrees, such as +36 degrees, +31 degrees or +26 degrees, the range of the first termination angle is between -5 degrees and +5 degrees, such as -5 degrees, 0 degrees or +5 degrees, and the range of the second included angle θ52 is between +78 degrees and +64 degrees, such as +78 degrees, +71 degrees or +64 degrees.

[0116] See also Figure 27 In this embodiment, as the door 520 rotates from the first opening angle to the second opening angle, the first included angle θ51 further decreases, and the second included angle θ52 gradually increases from a positive initial angle less than 90 degrees to a second termination angle.

[0117] In this embodiment, the first included angle θ51 is further reduced to a range between -9 degrees and -19 degrees, such as -9 degrees, -14 degrees or -19 degrees, etc., the range of the second initial angle is between +64 degrees and +74 degrees, such as +64 degrees, +69 degrees or +74 degrees, etc., and the range of the second termination angle is between +108 degrees and +118 degrees, such as +108 degrees, +113 degrees or +118 degrees, etc.

[0118] Based on the above embodiments, the housing assembly of this application includes a housing, a door, and a hinge assembly. The housing forms an accommodating space with an opening. The door covers the opening and can seal it. The hinge assembly is disposed on the pivot side of the housing and is used to pivotally connect the housing and the door. The door has an inner edge and an outer edge on the pivot side. The housing assembly is provided with a first reference plane and a second reference plane. The first reference plane passes through the inner edge of the door when it is closed and is parallel to the plane where the opening is located. The second reference plane passes through the outer edge of the door when it is closed and is perpendicular to the plane where the opening is located. The first reference plane and the second reference plane remain stationary relative to the housing during the opening process of the door relative to the housing.

[0119] The hinge assembly has a first hinge point and a second hinge point. The second hinge point is located further away from the outer edge than the first hinge point. During the opening of the door relative to the housing under the action of the hinge assembly, the door has a first direction of movement relative to the housing at the first hinge point and a second direction of movement relative to the housing at the second hinge point. The first direction of movement has a first angle with the first reference plane, and the second direction of movement has a second angle with the first reference plane. When the first direction of movement is located further away from the first reference plane, the first angle is positive, and when the first direction of movement is located further away from the second reference plane, the absolute value of the first angle is less than 90 degrees. When the second direction of movement is located further away from the second reference plane, the second angle is positive, and when the second direction of movement is located further away from the second reference plane, the absolute value of the second angle is less than 90 degrees.

[0120] During the process of the door rotating from the closed state to the first opening angle, the second included angle is positive and less than 90 degrees, the first included angle gradually decreases from the first initial angle (positive and less than 90 degrees) to the first termination angle, and the difference between the second included angle and the first included angle at the same actual opening angle of the door relative to the box gradually increases; during the process of the door rotating from the first opening angle to the second opening angle, the first included angle gradually increases from the second initial angle (absolute value less than 90 degrees) to the second termination angle, the second included angle gradually increases from the third initial angle (positive and less than 90 degrees) to the third termination angle, and the difference between the second included angle and the first included angle at the same actual opening angle of the door relative to the box gradually increases at least first.

[0121] Furthermore, during the process of the door opening from the closed position to its maximum angle relative to the housing under the action of the hinge assembly, the first hinge point moves from the starting position to the ending position. The door is further provided with a reference point, which coincides with the position of the first hinge point that is furthest from the second reference plane between the starting and ending positions, and remains relatively stationary relative to the housing during the opening process. A first perpendicular line is drawn from the reference point to the outer edge, and a first vertical distance is drawn along the first perpendicular line to the outer edge. A second perpendicular line is drawn from the reference point to the inner edge, and a second vertical distance is drawn along the second perpendicular line to the inner edge. The first perpendicular line forms a third angle with the first reference plane, and the second perpendicular line forms a third angle with the first reference plane. The door has a fourth included angle; wherein, during the process of the door rotating open from the closed state to the first opening angle relative to the box, the first vertical distance and the second vertical distance gradually decrease, the third included angle gradually decreases within the range of 0 degrees to 90 degrees, and the fourth included angle gradually increases within the range of 0 degrees to 90 degrees; during the process of the door rotating open from the first opening angle to the second opening angle relative to the box, the first vertical distance gradually decreases, the third included angle gradually decreases within the range of 0 degrees to 90 degrees, the fourth included angle gradually increases, and exceeds 90 degrees within at least a predetermined angle range before the second opening angle, and the second vertical distance gradually increases within the predetermined angle range.

[0122] The aforementioned hinge assembly enables the door 120 to rotate relative to the housing 110, and the inner edge 121 and outer edge 122 of the door 120 have a certain motion trajectory relative to each other, such as... Figure 28 and 29 .

[0123] In this process, under the action of the hinge assembly 130, the door 120 moves from a closed state relative to the housing 110 to an open first opening angle. The outer edge 122 moves along the first outer edge trajectory A1B1 towards the first reference plane X, and the inner edge 121 moves along the first inner edge trajectory A2B2 towards the second reference plane Y towards the opening side. For the movements 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 greater than or equal to 5t, and the distance beyond the second reference plane Y away from the opening side is less than or equal to a first predetermined distance d1; the radius of curvature of the first inner edge trajectory A2B2 is greater than or equal to 100t, and the distance beyond the first reference plane X towards the opening side is less than or equal to a second predetermined distance d2, where t is the door thickness. Based on the radius of curvature of the movement trajectory and the limitation on the distance the movement trajectory can exceed the reference plane, the door can move smoothly without exceeding the predetermined range.

[0124] The specific values ​​of the first and second predetermined distances can be determined according to the actual product design needs. For example, the first predetermined distance can be determined based on the distance between the wall into which the cabinet component is embedded and the cabinet component itself, and the second distance can be determined based on the thickness or elasticity of the door seal on the cabinet. In this embodiment, the door thickness is used as a scalar, limiting the first and second predetermined distances to 0 to 0.15 times the door thickness. If 0 times is selected, it means that the door will not squeeze the cabinet or extend beyond the side of the cabinet component. In this embodiment, 0.1 times can be selected, which means that it is allowed to exceed 0.1 times the door thickness. Alternatively, it can be limited by empirical values, with the first predetermined distance being 0 mm to 4 mm and the second predetermined distance being 0 mm to 2 mm. Similarly, if both are selected as 0 mm, it means that it will not exceed the limit. In this embodiment, the first predetermined distance is 3 mm and the second predetermined distance is 1 mm, which is the distance that is allowed to exceed the limit.

[0125] Furthermore, in this embodiment, the endpoint B2 of the first inner edge trajectory A2B2 is located on the first reference plane X, or the endpoint B2 is located on the side of the first reference plane X away from the opening and the distance to the first reference plane X is less than or equal to 0.058t; the endpoint B1 of the first outer edge trajectory A1B1 is located on the second reference plane Y, or the endpoint B1 is located on the side of the second reference plane Y facing the opening and the distance to the second reference plane Y is less than or equal to 0.135t.

[0126] That is, after the door 120 is opened to the first opening angle, the inner edge 122 of the door 120 will not squeeze the box 110 and will not move excessively away from the box 110; the outer edge 121 will not extend beyond the side of the box assembly 100 and will not move excessively toward the opening side of the second reference plane Y, so that the door 120 will not have obvious displacement problems when it is opened, and the movement of the door 120 is more stable.

[0127] As the door 120 opens relative to the box 11 from a first opening angle to a second opening angle, the inner edge 121 moves along the second inner edge trajectory toward the side of the second reference plane Y facing the opening and the side of the first reference plane X away from the opening, with the radius of curvature of the second inner edge trajectory gradually decreasing; the outer edge 122 moves along the second outer edge trajectory toward the first reference plane X, with the radius of curvature of the second outer edge trajectory being greater than or equal to 5t, and the distance of the second outer edge trajectory beyond the side of the second reference plane away from the opening being less than or equal to a first predetermined distance. The second inner edge trajectory can be A2C2, and the second outer edge trajectory can be A1C1.

[0128] The inner edge 121 moves away from the opening of the box along the second inner edge trajectory, which can prevent the door from squeezing the box; while the second outer edge trajectory of the outer edge 122 has a radius of curvature greater than or equal to 5t, and the distance beyond the second reference plane away from the opening side is less than or equal to the first predetermined distance. Based on the above analysis of the first outer edge trajectory, this feature can prevent the door from going beyond the side of the box assembly.

[0129] Under the action of the hinge assembly 130, the door 120 can continue to open relative to the housing 110 from the second opening angle to the third opening angle. During this process, the inner edge 121 moves along the third inner edge trajectory C2D2 toward the first reference plane X away from the opening side, while the outer edge 122 moves along the third outer edge trajectory C1D1 toward the second reference plane Y toward the opening side. The trajectory of this movement direction also corresponds to a larger opening angle of the door 120.

[0130] The third outer edge trajectory C1D1 and the third inner edge trajectory C2D2 are specifically concentric arcs. The radius of curvature of the third inner edge trajectory C2D2 is 0.55t-0.67t, and the radius of curvature of the third outer edge trajectory C1D1 is 0.45t-0.55t.

[0131] Specifically, the three-track design has a first opening angle of 25 to 31 degrees for the first track, a second opening angle of 57 to 60 degrees for the second track, and a third opening angle of 122 to 132 degrees for the third track. These opening angles also correspond to those in the aforementioned embodiment.

[0132] The length of the first inner edge trajectory A2B2 is 0.465t, and the length of the first outer edge trajectory A1B1 is 0.115t.

[0133] The length of the second outer edge trajectory B1C1 is 0.2285t, and the second inner edge trajectory B2C2 is set such 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 11 satisfy the following formula:

[0134] in, For the rotation angle, The preset angle is 100 degrees to 113 degrees. The distance traveled.

[0135] The center of the third inner edge trajectory C2D2 is located inside the gate body 12, and its radius of curvature is 0.61t. The center of the third outer edge trajectory C1D1 is located inside the gate body 12, and its radius of curvature is 0.5t. The perpendicular distance from the center to the first reference plane X is 0.6t, and the perpendicular distance from the center to the second reference plane Y is 0.5t.

[0136] In summary, different hinge components conforming to the design concept of this application can all mitigate the problems of door compression of the cabinet and interference when the door opens beyond the sides of the cabinet components. The above cabinet component design can be applied to products with doors that experience problems of door compression and interference when the door extends beyond the cabinet components, such as refrigerators and cabinets.

[0137] This application also proposes a refrigeration device that includes the aforementioned cabinet assembly, specifically employing the aforementioned door, cabinet, and hinge assembly between the door and cabinet. The refrigeration device can be a refrigerator, freezer, wine cabinet, fresh food display case, etc.

[0138] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A housing assembly, characterized in that, The enclosure assembly includes: A housing, the housing being used to form a receiving space with an opening; The door body is used to block the opening; A hinge assembly configured to pivotally connect the housing and the door on the pivot side of the housing; The door has an inner edge and an outer edge on the pivot side. The door is further provided with a first reference plane and a second reference plane. The first reference plane passes through the inner edge of the door when it is closed and is parallel to the plane where the opening is located. The second reference plane passes through the outer edge of the door when it is closed and is perpendicular to the plane where the opening is located. The first reference plane and the second reference plane remain stationary relative to the box body during the opening of the door body relative to the box body. The hinge assembly includes an outer shaft and an inner shaft disposed on one of the door body and the housing, and an outer groove and an inner groove disposed on the other of the door body and the housing. The outer groove and the outer shaft cooperate to form a first hinge point; the inner groove and the inner shaft cooperate to form a second hinge point. The second hinge point is located further away from the outer edge than the first hinge point. During the process of the door body opening relative to the housing from a closed position to a maximum angle under the action of the hinge assembly, the first hinge point moves from a starting position to an ending position. The door body is further provided with a reference point, which coincides with the one furthest from the second reference plane between the starting position and the ending position of the first hinge point, and remains relatively stationary relative to the housing during the opening process of the door body. The reference point has a first perpendicular line to the outer edge, and a first perpendicular distance along the first perpendicular line to the outer edge; the reference point has a second perpendicular line to the inner edge, and a second perpendicular distance along the second perpendicular line to the inner edge; the first perpendicular line has a third angle with the first reference plane; and the second perpendicular line has a fourth angle with the first reference plane. Specifically, during the process of the door opening from a closed state to a first opening angle relative to the box, the first vertical distance and the second vertical distance gradually decrease, the third included angle gradually decreases within the range of 0 to 90 degrees, and the fourth included angle gradually increases within the range of 0 to 90 degrees; during the process of the door opening from the first opening angle to the second opening angle relative to the box, the first vertical distance gradually decreases, the third included angle gradually decreases within the range of 0 to 90 degrees, the fourth included angle gradually increases from less than 90 degrees to greater than 90 degrees, the second vertical distance first gradually decreases and then gradually increases, and within a predetermined angle range before the second opening angle, the sine value of the fourth included angle decreases while the second vertical distance increases; During the process of the door opening from the closed state to the maximum opening angle, the outer groove and the inner groove move synchronously with the door. At the beginning of the movement, the outer shaft is located at one end of the outer groove and the inner shaft is located at one end of the inner groove. At the end of the movement, the outer shaft is located at the other end of the outer groove and the inner shaft is located at the other end of the inner groove. Moreover, the position of the outer shaft relative to the outer groove moves from one end of the outer groove to the other end of the outer groove.

2. The housing assembly according to claim 1, characterized in that, The first vertical distance corresponds to a gradually increasing change in the angle of the door opening per unit angle, while the second vertical distance corresponds to a gradually decreasing change in the angle of the door opening per unit angle.

3. The housing assembly according to claim 2, characterized in that, The first vertical distance gradually decreases from between 0.63t and 0.65t to between 0.57t and 0.59t, and the second vertical distance gradually decreases from between 0.80t and 0.78t to between 0.59t and 0.61t, where t is the thickness of the door body.

4. The housing assembly according to claim 3, characterized in that, The third included angle gradually decreases from between 39 and 41 degrees to between 35 and 37 degrees, and the fourth included angle gradually increases from between 49 and 51 degrees to between 79 and 81 degrees.

5. The housing assembly according to claim 1, characterized in that, There is a first product between the first vertical distance and the cosine of the third included angle. During the process of the door opening relative to the box from the closed state to the first opening angle and from the first opening angle to the second opening angle, the difference between the maximum and minimum values ​​of the first product is less than 0.1t, where t is the thickness of the door.

6. The housing assembly according to claim 5, characterized in that, The first product remains constant or gradually decreases.

7. The housing assembly according to claim 1, characterized in that, There is a second product between the second vertical distance and the sine of the fourth included angle. During the process of the door opening from the closed state to the first opening angle relative to the box, the difference between the maximum and minimum values ​​of the second product is less than 0.1t, where t is the thickness of the door.

8. The housing assembly according to claim 7, characterized in that, The second product remains constant or gradually decreases.

9. The housing assembly according to claim 8, characterized in that, During the process of the door opening relative to the housing from the first opening angle to the second opening angle, the second product gradually decreases at least within the predetermined angle range.

10. The housing assembly according to claim 1, characterized in that, The hinge assembly includes an outer shaft and an inner shaft disposed on the housing, and an outer groove and an inner groove disposed on the door. The outer groove and the outer shaft cooperate to form a first hinge point at the axis of the outer shaft, and the inner groove cooperates with the inner shaft to form a second hinge point at the axis of the inner shaft; wherein the reference point coincides with the axis of the outer shaft.

11. The housing assembly according to claim 10, characterized in that, The door has a rear wall plane and a side wall plane. The inner groove has a first inner groove segment and a second inner groove segment connecting the first inner groove segment. The outer groove has a first outer groove segment and a second outer groove segment connecting the first outer groove segment. The end position of the second inner groove segment is closer to the rear wall plane and the side wall plane than the start position of the second inner groove segment. The end position of the second outer groove segment is closer to the side wall plane and farther from the rear wall plane than the start position of the second outer groove segment. When the door opens relative to the box from the first opening angle to the second opening angle, the outer shaft moves relative to the outer groove segment from the start position of the second outer groove segment to the end position of the second outer groove segment, and the inner shaft moves relative to the inner groove segment from the start position of the second inner groove segment to the end position of the second inner groove segment.

12. The housing assembly according to claim 10 or 11, characterized in that, The door has a rear wall plane and a side wall plane. The inner groove has a first inner groove segment and a second inner groove segment connecting the first inner groove segment. The outer groove has a first outer groove segment and a second outer groove segment connecting the first outer groove segment. The end position of the first inner groove segment is closer to the rear wall plane and the side wall plane than the start position of the first inner groove segment. The end position of the first outer groove segment is closer to the rear wall plane and the side wall plane than the start position of the first outer groove segment. When the door opens relative to the box from the closed state to the first opening angle, the outer shaft moves relative to the outer groove segment from the start position of the first outer groove segment to the end position of the first outer groove segment, and the inner shaft moves relative to the inner groove segment from the start position of the first inner groove segment to the end position of the first inner groove segment.

13. The housing assembly according to claim 11, characterized in that, The inner groove includes a third inner groove segment connecting the second inner groove segment. The third inner groove segment is an arc centered on the end position of the second outer groove segment. When the door opens relative to the box from the second opening angle to the third opening angle, the outer shaft rotates relative to the outer groove at the end position of the second outer groove segment, and the inner shaft moves relative to the inner groove from the starting position of the third inner groove segment to the end position of the third inner groove segment.

14. The housing assembly according to claim 1, characterized in that, The hinge assembly includes an outer shaft disposed on the door body and an outer groove disposed on the housing body. The outer groove and the outer shaft cooperate to form the first hinge point, wherein the reference point coincides with the axis of the outer shaft when the outer shaft is in the end position of the outer groove.

15. The housing assembly according to claim 1, characterized in that, At the same actual opening angle of the door, the first vertical distance is less than the second vertical distance, and the third included angle is less than the fourth included angle.

16. The housing assembly according to claim 1, characterized in that, During the process of the door opening from the closed state to the second opening angle relative to the box body, the outer shaft moves continuously from one end of the outer groove to the other end of the outer groove relative to the outer groove body, and the inner shaft moves continuously from one end of the inner groove to the other end of the inner groove relative to the inner groove body.

17. A refrigeration device, characterized in that, The refrigeration equipment includes the housing assembly as described in any one of claims 1-16.

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