Door hovering structure, cabinet device and refrigerator

Abstract

This invention provides a door-hovering structure, a cabinet device, and a refrigerator. The cabinet device includes a cabinet and a door. The door-hovering structure includes: a sliding part slidably disposed on the cabinet in a predetermined direction; a door connecting part fixedly disposed on the door; and an elastic part, the first end of which is connected to the sliding part for synchronous movement, and the second end of which is fixedly connected to the door connecting part. When the door rotates from the closed position to the hovering position, the elastic part drives the sliding part to slide forward, so that the door stops at the hovering position. When the door rotates from the hovering position to the closed position, the elastic part drives the sliding part to slide in the opposite direction, so that the door closes. This solves the problem that existing door-hovering devices rely heavily on electronic control systems and may result in incomplete door closure.

Description

Technical Field

[0001] This invention relates to the field of cabinet equipment technology, and more specifically, to a door suspension structure, cabinet equipment, and refrigerator. Background Technology

[0002] Currently, the doors of household refrigerators are typically fixed to the cabinet using upper and lower hinges to achieve the function of rotating and opening around the hinge axis. However, in the actual production and assembly process, there are often manufacturing deviations in the coaxiality of the upper and lower hinges; in addition, environmental factors such as the refrigerator not being placed on a level surface can also introduce additional torque interference. These factors combined cause the refrigerator door to easily spring back when opened to the middle angle due to unbalanced forces, making it unable to achieve a stable hovering state and seriously affecting the user experience.

[0003] To address the door-stopping issue, some existing technologies have proposed a door-stopping device. This device uses an electronic control unit to drive the door to rotate, causing a stop on the door to engage with an anti-rotation component on the hinge, thus achieving mechanical locking and door-stopping functionality. However, while this solution achieves the stopping purpose to a certain extent, it relies entirely on the electronic control system. In the event of a power outage or circuit failure, the stopping function immediately fails, causing the door to be unable to maintain the intended angle. Furthermore, to achieve the stopping function, the traditional mechanical door closer structure is eliminated, resulting in insufficient guiding and locking force during closing, which can easily lead to incomplete door closure and consequently affect the refrigerator's insulation performance and sealing effect. Summary of the Invention

[0004] The main objective of this invention is to provide a door-hovering structure, a cabinet device, and a refrigerator to solve the problem that existing door-hovering devices rely heavily on electronic control systems and can lead to doors not closing properly.

[0005] To achieve the above objectives, according to one aspect of the present invention, a door-hovering structure is provided, suitable for cabinet-type equipment, the cabinet-type equipment including a cabinet and a switchable door movably disposed at an opening of the cabinet, the door-hovering structure comprising:

[0006] A sliding part is slidably disposed on the housing in a predetermined direction;

[0007] The door connection part is fixedly installed on the door opening and closing mechanism;

[0008] The elastic part has a first end connected to the sliding part for synchronous movement, and a second end fixedly connected to the door body connecting part.

[0009] When the door is rotated from the closed position to the hovering position, the elastic part drives the sliding part to slide forward, so that the door stays in the hovering position; when the door is rotated from the hovering position to the closed position, the elastic part drives the sliding part to slide in the opposite direction, so as to drive the door to close.

[0010] Furthermore, the predetermined direction is the width direction of the opening; the door body connecting part is located at the end of the door that is connected to the housing; the door body suspension structure includes a bypassing part, which is provided on the door and located at the free end of the door, and the second end of the elastic part is fixed to the door body connecting part after bypassing the bypassing part, with the bypassing part being a connected sliding elastic section and a door body elastic section.

[0011] The door body elastic section is located between the winding section and the door body connecting section and is parallel to the opening and closing door. The sliding elastic section is located between the sliding section and the winding section. When the opening and closing door moves, the sliding elastic section switches between a closed state with a first predetermined angle to the opening and closing door and a hovering state with a second predetermined angle to the opening and closing door, so that the opening and closing door is in a closed position or a hovering position.

[0012] Furthermore, the door is rotatably configured; when the door is in the closed position, it is parallel to the opening; when the door is in the suspended position, it has a first opening angle.

[0013] Furthermore, the sliding elastic segment also includes a closing state located between the closed state and the hovering state; during the process of the door rotating from the hovering position to the closed position, the door has a closing position corresponding to the closing state;

[0014] Specifically, when the door is in the near-closed position, the door has a second opening angle, which is smaller than the first opening angle; when the door is in the near-closed position, the sliding elastic segment forms a third predetermined angle with the door; the third predetermined angle is smaller than the first predetermined angle and larger than the second predetermined angle.

[0015] Furthermore, the elastic part is a spring; and / or,

[0016] The first opening angle is greater than or equal to 90 degrees and less than or equal to 120 degrees; and / or,

[0017] The first predetermined included angle is within the range of 90 degrees or greater and 120 degrees or less; and / or,

[0018] The range of the second predetermined included angle is greater than or equal to 0 degrees and less than or equal to 10 degrees.

[0019] Furthermore, the second opening angle ranges from greater than 0 degrees to less than 90 degrees; and / or,

[0020] The value range of the third predetermined included angle is greater than 10 degrees and less than 90 degrees.

[0021] Furthermore, the door suspension structure includes a mounting cover disposed on the top of the housing and located on the side of the housing near the opening. The side of the mounting cover near the opening is provided with a groove extending along the width direction of the opening, and a sliding part is slidably disposed in the groove.

[0022] Furthermore, the enclosure equipment includes at least two doors spaced apart along the width direction of the opening. The door suspension structure includes at least two sliding parts, at least two door connecting parts, and at least two bypassing parts. The at least two sliding parts are spaced apart along the width direction of the opening, and the at least two sliding parts, at least two door connecting parts, and at least two bypassing parts are respectively provided corresponding to the at least two doors.

[0023] Furthermore, the door suspension structure includes a limiting part, which is disposed in the slide groove to divide the slide groove into at least two sliding sections. The at least two sliding parts are slidably disposed in the at least two sliding sections in a one-to-one correspondence.

[0024] Furthermore, the limiting part includes a middle connecting plate and multiple side limiting plates. Two of the multiple side limiting plates are spaced apart on opposite sides of the middle connecting plate along the width direction of the opening. The middle connecting plate is detachably connected to the mounting cover. The two side limiting plates are respectively provided with two sliding parts. Each side limiting plate is used to limit the sliding of the corresponding sliding part.

[0025] Furthermore, the sliding part includes a connecting block and a connecting hook. The connecting block is installed in the sliding groove connection, and the connecting block is provided with an installation cavity. The connecting hook is connected to the connecting block and located in the installation cavity, and the first end hook of the elastic part is provided in the connecting hook.

[0026] Furthermore, the door includes a door body and a door end cover disposed on the top of the door body. The side of the door end cover near the opening is provided with a strip-shaped mounting groove extending along the width direction of the door. The door body connecting part and the wrapping part are spaced apart at both ends of the strip-shaped mounting groove, and the elastic section of the door body is located in the strip-shaped mounting groove.

[0027] According to a second aspect of the present invention, a housing device is provided, comprising a housing, a switch door, and the aforementioned door suspension structure, wherein the switch door is movably disposed at the opening of the housing, and the door suspension structure is connected to both the housing and the switch door.

[0028] According to a third aspect of the present invention, a refrigerator is provided, comprising a cabinet, a door, and the aforementioned door suspension structure, wherein the door is movably disposed at the opening of the cabinet, and the door suspension structure is connected to both the cabinet and the door.

[0029] Applying the technical solution of this invention, the door hovering structure of this invention is applicable to box-type equipment. The box-type equipment includes a box and a door movably disposed at the opening of the box. The door hovering structure includes: a sliding part, slidably disposed on the box along a predetermined direction; a door connecting part, fixedly disposed on the door; and an elastic part, the first end of which is connected to the sliding part for synchronous movement, and the second end of which is fixedly connected to the door connecting part. When the door rotates from the closed position to the hovering position, the elastic part drives the sliding part to slide forward, so that the door stops at the hovering position. When the door rotates from the hovering position to the closed position, the elastic part drives the sliding part to slide in the opposite direction, so as to drive the door to close. In this way, the door suspension structure of the present invention establishes a direct mechanical coupling between the sliding part and the door connection part through the elastic part. By utilizing the reciprocating movement of the sliding part along a predetermined direction during the opening and closing of the door, the lever arm or angle of the elastic force is changed, thereby realizing the automatic distribution of force at the mechanical level. During the opening process of the door, the elastic part is stretched or compressed and drives the sliding part to slide forward to the predetermined limit structure. The elastic torque generated at this time is sufficient to balance the rebound force of the door, so that the door is stable and suspended without the need for power intervention, avoiding the problem of power failure that may occur in existing electric control suspension. During the closing process of the door, when the user closes the door to a certain angle, the change in the direction or magnitude of the force of the elastic part causes the driving torque generated to overcome the static friction between the sliding part and the housing, driving the sliding part to quickly return to its original position in the opposite direction, thereby driving the door to close tightly. This solves the problem of poor sealing after the door closer is removed in the existing suspension structure, realizes the purely mechanical suspension and automatic closing of the door, and ensures the sealing performance and ease of use when the door is closed. Attached Figure Description

[0030] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0031] Figure 1 A schematic diagram of an embodiment of the enclosure device according to the present invention is shown;

[0032] Figure 2 It shows Figure 1 The diagram shown is a structural schematic of the enclosure equipment when the door is in the closed position.

[0033] Figure 3 It shows Figure 2 A partial enlarged view of section B of the enclosure equipment shown;

[0034] Figure 4 It shows Figure 2 A schematic diagram of the sliding part of the door suspension structure of the box-type equipment shown;

[0035] Figure 5 It shows Figure 2 A schematic diagram of the structure of the door end cover of the switch door of the enclosure equipment shown;

[0036] Figure 6 It shows Figure 2 The diagram shows the assembly of the mounting cover, sliding part, and limiting part of the door suspension structure of the enclosure equipment.

[0037] Figure 7 It shows Figure 6 A schematic diagram of the mounting cover for the door suspension structure shown;

[0038] Figure 8 It shows Figure 6 A magnified view of part A of the door suspension structure shown;

[0039] Figure 9 It shows Figure 6 A schematic diagram of the limiting part of the door suspension structure shown;

[0040] Figure 10 It shows Figure 2 The diagram shown illustrates the structure of the enclosure when the door is in the near-closed position.

[0041] Figure 11 It shows Figure 10 A partial enlarged view of point C of the enclosure shown;

[0042] Figure 12 It shows Figure 10 The diagram shown is a structural schematic of the enclosure equipment when the door is in the fully open position.

[0043] Figure 13 It shows Figure 12 A partial enlarged view of point E of the enclosure shown;

[0044] Figure 14 It shows Figure 12 The diagram shown is a structural schematic of the enclosure equipment when the door is in the hovering position.

[0045] Figure 15 It shows Figure 14 A magnified view of part D of the enclosure shown.

[0046] The above figures include the following reference numerals:

[0047] 100. Box body; 110. Opening;

[0048] 200. Door opening and closing; 210. Door body; 220. Door end cap; 2201. Strip mounting groove;

[0049] 1. Sliding part; 11. Connecting block; 111. Mounting cavity; 12. Connecting hook; 2. Door body connecting part; 3. Winding part; 4. Elastic part; 41. Sliding elastic section; 42. Door body elastic section; 5. Mounting cover; 51. Slide groove; 511. Sliding section; 6. Limiting part; 61. Intermediate connecting plate; 62. Side limiting plate. Detailed Implementation

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] like Figures 1 to 15 As shown, the present invention provides a door-hovering structure suitable for cabinet equipment. The cabinet equipment includes a cabinet 100 and a door 200 movably disposed at an opening 110 of the cabinet 100. The door-hovering structure includes: a sliding part 1, slidably disposed on the cabinet 100 in a predetermined direction; a door connecting part 2, fixedly disposed on the door 200; and an elastic part 4, the first end of which is connected to the sliding part 1 for synchronous movement, and the second end of which is fixedly connected to the door connecting part 2. When the door 200 rotates from the closed position to the hovering position, the elastic part 4 drives the sliding part 1 to slide forward, so that the door 200 stays in the hovering position. When the door 200 rotates from the hovering position to the closed position, the elastic part 4 drives the sliding part 1 to slide in the opposite direction, so as to drive the door 200 to close.

[0052] In this way, the door suspension structure of the present invention establishes a direct mechanical coupling between the sliding part 1 and the door connecting part 2 through the elastic part 4. By utilizing the reciprocating movement of the sliding part 1 along a predetermined direction during the opening and closing of the door 200, the lever arm or angle of the elastic force is changed, thereby achieving automated force distribution at the mechanical level. During the opening process of the door 200, the elastic part 4 is stretched or compressed, causing the sliding part 1 to slide forward to the predetermined limiting structure. The elastic torque generated at this time is sufficient to balance the rebound force of the door 200, allowing the door 200 to hover stably without the need for electrical intervention, avoiding the limitations of existing methods. The problem of potential power failure during the electric control hovering mechanism is addressed. However, during the closing process of the door 200, when the user closes the door 200 to a certain angle, the change in the direction or magnitude of the force of the elastic part 4 causes the generated driving torque to overcome the static friction between the sliding part 1 and the housing 100, driving the sliding part 1 to quickly reset in the opposite direction, thereby driving the door 200 to close tightly. This solves the problem of poor sealing after the door closer is removed from the existing hovering structure, realizing the purely mechanical hovering and automatic closing of the door 200, ensuring the sealing performance and ease of use when the door 200 is closed.

[0053] like Figure 3As shown, the predetermined direction is the width direction of the opening 110; the door connecting part 2 is located at the end of the switch door 200 that is connected to the housing 100; the door suspension structure includes a winding part 3, which is provided on the switch door 200 and located at the free end of the switch door 200; the second end of the elastic part 4 passes around the winding part 3 and is fixed to the door connecting part 2, and is divided into a sliding elastic section 41 and a door elastic section 42 connected by the winding part 3;

[0054] Among them, the door body elastic section 42 is located between the winding part 3 and the door body connecting part 2 and is parallel to the opening and closing door 200, and the sliding elastic section 41 is located between the sliding part 1 and the winding part 3, so that when the opening and closing door 200 moves, the sliding elastic section 41 switches between a closed state with a first predetermined angle to the opening and closing door 200 and a hovering state with a second predetermined angle to the opening and closing door 200, so that the opening and closing door 200 is in a closed position or a hovering position.

[0055] This invention constructs a purely mechanical door suspension structure by setting up a sliding part 1, a door connecting part 2, a winding part 3, and an elastic part 4, which can realize the suspension and closing mechanism of the door 200. It fundamentally solves the problem that the existing door suspension device relies heavily on the electronic control system and causes the door 200 to not close tightly.

[0056] Specifically, when the door 200 moves, the sliding part 1 slides in the width direction of the housing 100 through the sliding elastic section 41, while the door elastic section 42 is parallel to the door 200. The sliding elastic section 41 will apply a closing force or a hovering force to the door 200.

[0057] Specifically, the lengths of the sliding elastic segment 41 and the door body elastic segment 42 are not fixed, but change as the sliding part 1 slides.

[0058] like Figure 2 and Figure 3 As shown, in the closed state, the sliding part 1 is located near the free end of the door 200, the elastic part 4 is in a shorter state, and the sliding elastic section 41 is located on the side of the door body elastic section 42 near the opening 110. The sliding elastic section 41 applies a continuous closing force F1 to the door 200 to ensure that the door 200 is closed tightly.

[0059] like Figures 12 to 15 As shown, when the door 200 is opened to... Figure 12 and Figure 13 At the indicated angle, the sliding part 1 moves to its limit position near the connection end between the switch door 200 and the housing 100. At this time, the sliding elastic section 41 forms a second predetermined angle with the switch door 200, but both are inclined in a predetermined direction. The force they exert on the switch door 200 will cause the switch door 200 to move to... Figure 14 and Figure 15 The first opening angle shown is the hovering position. The sliding elastic segment 41 is located on the side of the door elastic segment 42 away from the opening 110, forming a second predetermined angle with the opening and closing door 200. At this time, the force generated by the sliding elastic segment 41 is divided into a second force F31 parallel to the opening and closing door 200 in the direction close to the opening 110 and a third force F32 extending in the direction away from the opening 110 and perpendicular to the opening and closing door 200. The third force F32 can counteract the rebound force of the opening and closing door 200 caused by the coaxiality deviation of the extension hinge or the unevenness of the ground, so that the opening and closing door 200 can achieve stable mechanical hovering without any electronic control components, and can work reliably even in the power outage state.

[0060] Specifically, the switch door 200 is rotatably configured; when the switch door 200 is in the closed position, the switch door 200 is configured parallel to the opening 110; when the switch door 200 is in the hovering position, the switch door 200 has a first opening angle.

[0061] The force exerted by the sliding elastic segment 41 on the opening and closing door 200 when it is closed includes a first force F1 perpendicular to the opening and closing door 200, and the force exerted by the sliding elastic segment 41 on the opening and closing door 200 when it is suspended includes a second force F31 perpendicular to the opening and closing door 200 and a third force F32 parallel to the opening and closing door 200.

[0062] The door suspension structure of the present invention defines the rotatable setting of the door 200 and its specific posture in the closed position and the suspension position, further optimizing the dynamic characteristics of the door 200's movement and ensuring the stability of the suspension state and the smoothness of the closing action.

[0063] First, the door 200 is configured to be rotatable, which conforms to the conventional movement logic of the door opening and closing of cabinet equipment such as refrigerators. This allows the door suspension structure of the present invention to be seamlessly integrated into existing cabinet equipment such as refrigerators without the need for a radical transformation of the overall structure of the cabinet 100, thereby reducing production costs and assembly difficulty.

[0064] When the door 200 is in the closed position and parallel to the opening 110, the sliding elastic section 41 is perpendicular to the door 200. At this time, the tension of the sliding elastic section 41 is mainly the tension force perpendicular to the door 200, i.e., the first force F1, which greatly enhances the sealing pressure between the door 200 and the cabinet 100, effectively preventing cold air leakage and hot air entry, and ensuring the energy efficiency performance of the refrigerator.

[0065] When the door 200 is rotated to the hovering position and has a first opening angle, the tension vector of the sliding elastic segment 41 generates a force sufficient to counteract external disturbance torques such as wind pressure and gravitational components. At the first opening angle, the sliding part 1 is located in a specific position, so that the sliding elastic segment 41 and the door 200 form a specific angle, thereby generating a reverse force, namely the third force F32, to balance the tendency of the door 200 to try to rebound.

[0066] This angle-based mechanical balance mechanism allows the door 200 to remain stably at a preset angle even without power or additional locking mechanisms, thanks to the natural physical properties of the elastic part 4. This prevents the door 200 from accidentally closing or rebounding due to slight touches or airflow disturbances, thus improving safety and convenience.

[0067] like Figure 10 and Figure 11 As shown, the sliding elastic segment 41 also includes a closing state located between the closed state and the hovering state; during the process of the switch door 200 rotating from the hovering position to the closed position, the switch door 200 has a closing position corresponding to the closing state; wherein, when the switch door 200 is in the closing position, the switch door 200 has a second opening angle, the second opening angle being smaller than the first opening angle; when the switch door 200 is in the closing position, the sliding elastic segment 41 and the switch door 200 form a third predetermined angle; the third predetermined angle is smaller than the first predetermined angle and larger than the second predetermined angle.

[0068] Among them, the force provided by the sliding elastic segment 41 to the opening and closing door 200 when it is in the closing state includes a fourth force F22 extending toward the opening 110 and perpendicular to the opening and closing door 200, and a fifth force F21 extending toward the opening 110 and parallel to the opening and closing door 200.

[0069] During the rotation of the door 200 from the hovering position to the closed position, when the door 200 rotates to the near-closed position, the sliding elastic segment 41 is located on the side of the door body elastic segment 42 closer to the opening 110, and the second opening angle is smaller than the first opening angle. This means that the door 200 has passed the hovering equilibrium point and entered the active closing range. At this time, the angle between the sliding elastic segment 41 and the opening 110 gradually decreases. According to the lever principle and force decomposition, the thrust generated by the elastic part 4 on the sliding part 1 along the slide groove gradually increases. When the horizontal component of the force of the elastic part 4 on the sliding part 1 exceeds the frictional force on the sliding part 1, the sliding part 1 quickly returns to a position away from the connection end between the door 200 and the housing 100, so that the door 200 can be automatically closed by the fourth force F22. This achieves a convenient self-closing and sealing function without the need for manual pulling, which not only simplifies the mechanical structure and improves reliability, but also perfectly balances the hovering stability and the closing sealing performance through the balance of pure mechanical forces, significantly improving the user experience.

[0070] The door suspension structure of the present invention introduces a closing position and a corresponding second opening angle and a third predetermined angle, which refines the dynamic process of the door 200 transitioning from the suspension position to the closed position. This solves the problem of jamming or failure to self-lock that may occur in the door suspension structure at the end of the closing phase of the door 200, and ensures the sensitivity and thoroughness of the self-closing function.

[0071] The coordination between the third predetermined angle and the second opening angle ensures that when the door 200 is nearly fully closed, the component force generated by the sliding elastic segment 41 can quickly overcome the friction of the sliding part 1, triggering its rapid reset. This ensures that the closing process does not generate insurmountable resistance in the middle angle, while providing sufficient acceleration force in the final stage, allowing the door 200 to forcefully impact the limiting structure and close tightly. Compared to sudden force changes, this smooth transition mechanical characteristic reduces mechanical impact, extends the service life of components, and also allows users to feel a natural sense of assistance when manually closing the door, preventing damage to the door hinges or the door housing due to excessive closing force.

[0072] Specifically, the elastic part 4 is a spring; and / or, the value range of the first opening angle is greater than or equal to 90 degrees and less than or equal to 120 degrees; and / or, the value range of the first predetermined included angle is greater than or equal to 90 degrees and less than or equal to 120 degrees; and / or, the value range of the second predetermined included angle is greater than or equal to 0 degrees and less than or equal to 10 degrees.

[0073] The door suspension structure of the present invention specifically defines the type and key angle parameters of the elastic part 4. It utilizes the energy storage of the spring under the deformation of a specific geometric structure to provide a stable linear restoring force for the elastic part 4.

[0074] Limiting the range of the first opening angle ensures that the torque generated by the elastic part 4 is sufficient to balance the interference such as the rebound force of the door 200 within this range, thus achieving reliable hovering. If the opening angle exceeds this range, the door 200 may not be able to remain stationary.

[0075] By limiting the range of values ​​for the second predetermined included angle, the direction of the force exerted by the elastic part 4 can be optimized, ensuring that in the hovering state, the force exerted by the elastic part 4 on the opening and closing door 200 can at least offset the rebound force.

[0076] This allows the invention to have a higher tolerance for error and consistency in large-scale production. Even when there are slight differences in the elastic modulus of the materials, different batches of refrigerators can achieve optimal hovering performance by adjusting the angle parameters, thereby improving the product yield and market adaptability.

[0077] Specifically, the second opening angle is greater than 0 degrees and less than 90 degrees; and / or, the third predetermined included angle is greater than 10 degrees and less than 90 degrees.

[0078] The door suspension structure of the present invention further defines the specific value range of the second opening angle and the third predetermined included angle, which can optimize the transition behavior of the door 200 from the suspension state to the closed state, especially for the mechanical response in the closing state, and ensure the reliable triggering of the self-closing function.

[0079] The range of the second opening angle defines the critical point at which the door 200 enters the automatic closing zone. Within this angle range, the geometry of the elastic part 4 causes its driving force on the sliding part 1 to significantly exceed the frictional force. The user only needs to apply a very small external force to trigger the sliding part 1 to reset, achieving a user experience of automatic closing with a gentle push. If the angle is too large, the user needs to push or pull with effort; if the angle is too small, it may result in an excessively narrow automatic closing zone, making user operation inconvenient.

[0080] Meanwhile, the range of the third predetermined included angle ensures that during the closing process, the direction of the force of the elastic part 4 is conducive to the rapid movement of the sliding part 1, so that the movement speed of the sliding part 1 is moderate. This avoids mechanical noise and impact caused by excessive speed, and ensures that the door 200 has sufficient kinetic energy at the moment of closing to overcome the rebound resistance of the door 200's seal and achieve a tight closure.

[0081] In this way, by precisely controlling these two angle ranges, the door suspension structure of the present invention can achieve the best balance between suspension stability and self-closing sensitivity, meeting the dual needs of different user groups for operating feel and quiet performance, and significantly improving the product's premium feel and practicality.

[0082] like Figure 5 As shown, the door suspension structure includes a mounting cover 5 disposed on the top of the housing 100 and located on the side of the housing 100 near the opening 110. A groove 51 extending along the width direction of the opening 110 is provided on the side of the mounting cover 5 near the opening 110, and a sliding part 1 is slidably disposed in the groove 51.

[0083] The door suspension structure of the present invention defines its installation method on the top of the housing 100, and in particular guides the sliding part by means of the groove 51 on the mounting cover 5, which greatly improves the integration, aesthetics and reliability of the door suspension structure.

[0084] The sliding part 1 is placed inside the mounting cover 5 on the top of the housing 100. The mounting cover 5 serves as both an appearance component and a structural support component, which not only saves space inside the housing 100 but also allows the door suspension mechanism to be located above the door opening and closing mechanism, resulting in a cleaner and more aesthetically pleasing appearance.

[0085] The groove 51 extends along the width of the opening 110, providing a precise movement track for the sliding part 1, avoiding jamming or uneven wear caused by multi-degree-of-freedom movement, thereby ensuring the stability and consistency of the hovering force and closing force.

[0086] When the cabinet is a refrigerator, the mounting cover 5 is the hinge cover on the top of the refrigerator. This layout allows the entire door suspension structure to share some mounting references with the existing hinge structure, simplifying the assembly process and reducing production complexity.

[0087] Specifically, the groove 51 reduces the frictional resistance of the sliding part 1. Combined with the function of the elastic part 4, it enables the sliding part 1 to respond flexibly to changes in elastic force, thereby achieving precise closing and hovering control.

[0088] Meanwhile, placing these key moving parts inside the mounting cover 5 can effectively prevent dust, oil, and other foreign objects from entering the moving parts, extend the service life of the door suspension structure, reduce maintenance costs, and improve the long-term reliability of the refrigerator in harsh environments.

[0089] The mounting cover 5 of the door suspension structure of the present invention can be the hinge cover above the refrigerator body 100.

[0090] like Figure 1 , Figure 2 , Figure 10 , Figure 12 and Figure 14 As shown, the enclosure equipment includes at least two openable doors 200 spaced apart along the width direction of the opening 110. The door suspension structure includes at least two sliding parts 1, at least two door connecting parts 2, and at least two bypassing parts 3. The at least two sliding parts 1 are spaced apart along the width direction of the opening 110, and the at least two sliding parts 1, the at least two door connecting parts 2, and the at least two bypassing parts 3 are respectively provided corresponding to the at least two openable doors 200.

[0091] The door suspension structure of the present invention is designed for the parallel opening and closing doors 200 in double-door or multi-door refrigerators. It can limit the arrangement of the door suspension structure and solve the problems of tilting, twisting and unstable suspension caused by uneven force on the entire wide door.

[0092] In the case of two switch doors 200 spaced apart along the width direction, each switch door 200 is independently equipped with a set of sliding part 1, door body connecting part 2, winding part 3 and elastic part 4, ensuring that the hovering and self-closing functions of each switch door 200 are independent and do not interfere with each other.

[0093] Furthermore, at least two sliding parts 1 are spaced apart along the width of the cabinet 100, expanding the distribution range of the force application point and improving the overall rigidity of the structure. When the door 200 is impacted by external force or tilts due to uneven ground, each elastic part 4 can provide a corrective torque to quickly restore the door 200 to its normal state, ensuring that the door 200 always remains flush with the cabinet and maintains a good sealing effect. This not only improves the reliability of the hovering function but also enhances the overall stability and durability of the refrigerator door 200.

[0094] like Figure 3 and Figure 8 As shown, the door suspension structure includes a limiting part 6, which is disposed in the slide groove 51 to divide the slide groove 51 into at least two sliding sections 511. At least two sliding parts 1 are slidably disposed in at least two sliding sections 511 in a one-to-one correspondence.

[0095] Specifically, the door suspension structure of the present invention introduces a limiting part 6, which divides the slide groove 51 into two independent sliding sections 511, and allows the two sliding parts 1 to be respectively set in them, realizing the physical isolation and independent adjustment of the left and right opening and closing door 200 functions, improving assembly accuracy and maintenance convenience, and also serving as a positioning reference to ensure that the two sliding parts 1 have symmetrical reference points in the initial position, thus ensuring the consistency of the suspension angle of the left and right opening and closing door 200.

[0096] Furthermore, by independently setting the sliding section 511, users or maintenance personnel can adjust the position of the corresponding sliding part 1 or the preload of the elastic part 4 separately according to the functional requirements of a single door 200, without affecting the state of another door 200, which greatly simplifies the debugging process.

[0097] In addition, the limiting part 6 can also prevent the sliding part 1 from being ejected from the corresponding moving part in the slide groove 51 in extreme cases, providing additional safety protection.

[0098] This segmented slide 51 also makes the structure more compact, allowing for the placement of more mechanical components within the limited top space and improving space utilization. At the same time, the independent sliding segments 511 also help to distribute the load and avoid bending deformation caused by the excessive length of a single long slide 51, thereby ensuring the smoothness and accuracy of the movement of each sliding part 1.

[0099] like Figure 9As shown, the limiting part 6 includes a middle connecting plate 61 and a plurality of side limiting plates 62. Two of the plurality of side limiting plates 62 are spaced apart on opposite sides of the middle connecting plate 61 along the width direction of the opening 110. The middle connecting plate 61 is detachably connected to the mounting cover 5. The two side limiting plates 62 are respectively provided corresponding to the two sliding parts 1. Each side limiting plate 62 is used to limit the sliding of the corresponding sliding part 1.

[0100] Specifically, the door suspension structure of the present invention includes a middle connecting plate 61 and two side limiting plates 62, which not only enhances the structural strength and installation stability of the limiting part 6, but also realizes the precise guiding and limiting function of the sliding part 1, ensuring the long-term reliability of the door suspension structure.

[0101] The intermediate connecting plate 61 is detachably connected to the mounting cover 5, which facilitates manufacturing and assembly, and also allows for quick disassembly of the limiting part 6 for inspection or replacement during maintenance. The two side limiting plates 62 are located on opposite sides of the intermediate connecting plate 61 and are correspondingly arranged with the two sliding parts 1, effectively limiting the displacement of the sliding parts 1 in the slide groove 51, preventing interference, and ensuring that each sliding part 1 moves linearly only within its corresponding sliding section 511.

[0102] In addition, a buffer layer that contacts the sliding part 1 can be provided on the side limiting plate 62 to provide a gentle block when the sliding part 1 moves to the limit position, avoiding noise and impact caused by rigid collision. This allows the door suspension structure to maintain a precise movement trajectory and stable suspension performance after thousands of opening and closing cycles, extending the product's service life and improving user satisfaction.

[0103] like Figure 4 As shown, the sliding part 1 includes a connecting block 11 and a connecting hook 12. The connecting block 11 is installed in the sliding groove 51 and connected. The connecting block 11 is provided with a mounting cavity 111. The connecting hook 12 is connected to the connecting block 11 and located in the mounting cavity 111. The first end of the elastic part 4 is hooked onto the connecting hook 12.

[0104] The door suspension structure of the present invention defines the specific structure of the sliding part 1, including the connecting block 11 and the connecting hook 12, optimizes the connection method between the elastic part 4 and the sliding part 1, improves the firmness of the connection and the uniformity of force distribution, avoids the risk of breakage caused by loose connection points or stress concentration, and provides a stable installation foundation.

[0105] Meanwhile, the door connecting part 2 is also a hook body, with the two ends of the elastic part hooked onto the connecting hook 12 and the door connecting part 2 respectively. It can withstand a large pulling force and is not easy to disengage, ensuring the reliable transmission of the suspension force.

[0106] In addition, the material of the sliding part 1 is usually high-strength metal or engineering plastic, which has good fatigue strength and can withstand the repeated tension of the spring for a long time without deformation or breakage. This not only improves the safety of the door suspension structure, but also makes it more convenient to replace the elastic part 4 or perform maintenance. Only the connecting hook needs to be removed, which reduces maintenance costs.

[0107] Meanwhile, the hook structure described above allows the elastic part 4 to have a certain angular adjustment space when under force, avoiding the additional bending moment that may be generated by the fixed connection, and protecting the door 200 and the box 100.

[0108] like Figure 5 , Figure 12 and Figure 13 As shown, the switch door 200 includes a door body 210 and a door end cover 220 disposed above the door body 210. A strip-shaped mounting groove 2201 extending along the width direction of the switch door 200 is provided on the side of the door end cover 220 near the opening 110. The door body connecting part 2 and the wrapping part 3 are spaced apart at both ends of the strip-shaped mounting groove 2201. The door body elastic section 42 is located in the strip-shaped mounting groove 2201.

[0109] The door suspension structure of the present invention defines the layout of the components of the opening and closing door 200 and the door connecting part 2 and the winding part 3 on the door end cover 220 above the door body 210. This makes full use of the space at the end of the door body 210, realizes the integration of the door suspension structure and the opening and closing door 200, and improves the structural strength and aesthetics of the opening and closing door 200.

[0110] The door connecting part 2 and the winding part 3 are spaced apart at both ends of the strip mounting groove 2201. This layout allows the door elastic segment 42 to be evenly distributed along the width direction of the door 210, thereby applying a uniform tension to the door 210 and avoiding twisting or deformation of the door 210 due to uneven force.

[0111] The design of the strip mounting groove 2201 not only provides a protective channel for the elastic section 42 of the door body to prevent it from being exposed and damaged, but also ensures that the elastic section 42 of the door body remains straight during the movement of the door body, ensuring that the direction of the tension of the elastic section 42 of the door body is always parallel to the door body, thus improving the efficiency of mechanical transmission.

[0112] As the upper structure of the door body 210, the door end cover 220 usually has high strength. By integrating the door body connecting part 2 and the winding part 3 here, the door end cover 220 can be used as the main load-bearing component, reducing the burden on the door body 210. It also facilitates the pre-installation of the door body connecting part 2 and the winding part 3 during the manufacturing process of the door end cover 220, simplifying the subsequent assembly process.

[0113] The door suspension structure of the present invention optimizes the position of the door connecting part 2 and the winding part 3, and adjusts the effective length and stiffness of the elastic part 4, thereby achieving fine adjustment of the suspension angle and torque of the opening and closing door 200, meeting the personalized needs of opening and closing doors 200 of different sizes and weights, and improving the adaptability and customization capability of the enclosure equipment.

[0114] like Figure 1 , Figure 2 , Figure 10 , Figure 12 and Figure 14 As shown, the present invention also provides a box-type device, including a box 100, a door 200 and the aforementioned door suspension structure. The door 200 is movably disposed at the opening 110 of the box 100, and the door suspension structure is connected to both the box 100 and the door 200.

[0115] The cabinet device of the present invention is a cabinet device, such as a refrigerator, that includes the aforementioned door suspension structure. By cleverly concealing the complex mechanical suspension mechanism at the connection between the cabinet and the door, it has a simple and elegant appearance and a compact internal structure. When the user opens the door 200, the door suspension structure moves to the suspension state to provide a suspension force F31, preventing the door 200 from rebounding and facilitating the user to take out and put in items. When the user closes the door 200, the door suspension structure moves from the suspension state through a closing state to the closed state, first providing a closing pull force F22, and then providing a closing pull force F1, ensuring that the door 200 is tightly closed, maintaining the internal environment of the cabinet device, and saving energy and reducing consumption.

[0116] This purely mechanical structure enables the refrigerator to achieve stable hovering and automatic closing without electricity, eliminating the dependence of the door opening and closing movement on the electronic control system, reducing the failure rate, and improving the product's availability in extreme situations such as power outages.

[0117] At the same time, by eliminating the existing electronic locking mechanism and door closer, the electrical circuits and mechanical structure of the refrigerator have been simplified, reducing production costs and assembly difficulty, bringing users a more comfortable, convenient and safe user experience, and significantly enhancing market competitiveness and user value.

[0118] Furthermore, the enclosure device of the present invention has good expandability and can be applied to other different types of door-type home appliances such as refrigerators, freezers and wine cabinets, and has broad application prospects.

[0119] like Figure 1 , Figure 2 , Figure 10 , Figure 12 and Figure 14As shown, the present invention also provides a refrigerator, including a cabinet 100, a door 200 and the aforementioned door suspension structure. The door 200 is movably disposed at the opening 110 of the cabinet 100, and the door suspension structure is connected to both the cabinet 100 and the door 200.

[0120] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0121] The door-hovering structure of the present invention is applicable to box-type equipment. The box-type equipment includes a box 100 and a door 200 movably disposed at an opening 110 of the box 100. The door-hovering structure includes: a sliding part 1, slidably disposed on the box 100 in a predetermined direction; a door connecting part 2, fixedly disposed on the door 200; and an elastic part 4, the first end of which is connected to the sliding part 1 for synchronous movement, and the second end of which is fixedly connected to the door connecting part 2. When the door 200 rotates from the closed position to the hovering position, the elastic part 4 drives the sliding part 1 to slide forward, so that the door 200 stays in the hovering position. When the door 200 rotates from the hovering position to the closed position, the elastic part 4 drives the sliding part 1 to slide in the opposite direction, so as to drive the door 200 to close.

[0122] In this way, the door suspension structure of the present invention establishes a direct mechanical coupling between the sliding part 1 and the door connecting part 2 through the elastic part 4. By utilizing the reciprocating movement of the sliding part 1 along a predetermined direction during the opening and closing of the door 200, the lever arm or angle of the elastic force is changed, thereby achieving automated force distribution at the mechanical level. During the opening process of the door 200, the elastic part 4 is stretched or compressed, causing the sliding part 1 to slide forward to the predetermined limiting structure. The elastic torque generated at this time is sufficient to balance the rebound force of the door 200, allowing the door 200 to hover stably without the need for electrical intervention, avoiding the limitations of existing methods. The problem of potential power failure during the electric control hovering mechanism is addressed. However, during the closing process of the door 200, when the user closes the door 200 to a certain angle, the change in the direction or magnitude of the force of the elastic part 4 causes the generated driving torque to overcome the static friction between the sliding part 1 and the housing 100, driving the sliding part 1 to quickly reset in the opposite direction, thereby driving the door 200 to close tightly. This solves the problem of poor sealing after the door closer is removed from the existing hovering structure, realizing the purely mechanical hovering and automatic closing of the door 200, ensuring the sealing performance and ease of use when the door 200 is closed.

[0123] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0124] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0125] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0126] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0127] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door suspension structure, characterized in that, Suitable for enclosure equipment, the enclosure equipment including an enclosure (100) and a switchable door (200) movably disposed at an opening (110) of the enclosure (100), the door suspension structure including: A sliding part (1) is slidably disposed on the housing (100) in a predetermined direction. The door body connecting part (2) is fixedly installed on the switch door (200); The elastic part (4) has a first end connected to the sliding part (1) for synchronous movement, and a second end fixedly connected to the door body connecting part (2). When the switch door (200) rotates from the closed position to the hovered position, the elastic part (4) drives the sliding part (1) to slide forward so that the switch door (200) stays in the hovered position; when the switch door (200) rotates from the hovered position to the closed position, the elastic part (4) drives the sliding part (1) to slide in the opposite direction so as to drive the switch door (200) to close.

2. The door suspension structure according to claim 1, characterized in that, The predetermined direction is the width direction of the opening (110); the door connecting part (2) is located at the end of the switch door (200) that is connected to the box (100); the door suspension structure includes a bypass part (3), which is disposed on the switch door (200) and located at the free end of the switch door (200); the second end of the elastic part (4) passes around the bypass part (3) and is fixed to the door connecting part (2), so that it is divided by the bypass part (3) into a connected sliding elastic segment (41) and a door elastic segment (42). The door body elastic segment (42) is located between the winding part (3) and the door body connecting part (2) and is parallel to the switch door (200). The sliding elastic segment (41) is located between the sliding part (1) and the winding part (3). When the switch door (200) moves, the sliding elastic segment (41) switches between a closed state with a first predetermined angle to the switch door (200) and a hovering state with a second predetermined angle to the switch door (200), so that the switch door (200) is in the closed position or the hovering position.

3. The door suspension structure according to claim 2, characterized in that, The switch door (200) is rotatably disposed; when the switch door (200) is in the closed position, the switch door (200) is disposed parallel to the opening (110); when the switch door (200) is in the hovered position, the switch door (200) has a first opening angle.

4. The door suspension structure according to claim 3, characterized in that, The sliding elastic segment (41) also includes a closing state located between the closed state and the hovering state; during the process of the switch door (200) rotating from the hovering position to the closed position, the switch door (200) has a closing position corresponding to the closing state; When the switch door (200) is in the closed position, the switch door (200) has a second opening angle, which is smaller than the first opening angle; when the switch door (200) is in the closed position, the sliding elastic segment (41) and the switch door (200) form a third predetermined angle; the third predetermined angle is smaller than the first predetermined angle and larger than the second predetermined angle.

5. The door suspension structure according to claim 3, characterized in that, The elastic part (4) is a spring; and / or, The first opening angle is greater than or equal to 90 degrees and less than or equal to 120 degrees; and / or, The first predetermined included angle is greater than or equal to 90 degrees and less than or equal to 120 degrees; and / or, The second predetermined included angle is greater than or equal to 0 degrees and less than or equal to 10 degrees.

6. The door suspension structure according to claim 4, characterized in that, The second opening angle is greater than 0 degrees and less than 90 degrees; and / or, The value range of the third predetermined included angle is greater than 10 degrees and less than 90 degrees.

7. The door suspension structure according to claim 2, characterized in that, The door suspension structure includes a mounting cover (5) disposed on the top of the housing (100) and located on the side of the housing (100) near the opening (110). The mounting cover (5) is provided with a groove (51) extending along the width direction of the opening (110) on the side near the opening (110). The sliding part (1) is slidably disposed in the groove (51).

8. The door suspension structure according to claim 7, characterized in that, The enclosure device includes at least two doors (200) spaced apart along the width direction of the opening (110). The door suspension structure includes at least two sliding parts (1), at least two door connecting parts (2), and at least two bypassing parts (3). The at least two sliding parts (1) are spaced apart along the width direction of the opening (110), and the at least two sliding parts (1), the at least two door connecting parts (2), and the at least two bypassing parts (3) are respectively corresponding to the at least two doors (200).

9. The door suspension structure according to claim 8, characterized in that, The door suspension structure includes a limiting part (6), which is disposed in the slide groove (51) to divide the slide groove (51) into at least two sliding sections (511). At least two sliding parts (1) are slidably disposed in the at least two sliding sections (511) in a one-to-one correspondence.

10. The door suspension structure according to claim 9, characterized in that, The limiting part (6) includes an intermediate connecting plate (61) and a plurality of side limiting plates (62). Two of the plurality of side limiting plates (62) are spaced apart along the width direction of the opening (110) on opposite sides of the intermediate connecting plate (61). The intermediate connecting plate (61) is detachably connected to the mounting cover (5). The two side limiting plates (62) are respectively provided corresponding to the two sliding parts (1). Each side limiting plate (62) is used to limit the sliding of the corresponding sliding part (1).

11. The door suspension structure according to claim 7, characterized in that, The sliding part (1) includes a connecting block (11) and a connecting hook (12). The connecting block (11) is installed in the sliding groove (51) and connected. The connecting block (11) has an installation cavity (111). The connecting hook (12) is connected to the connecting block (11) and located in the installation cavity (111). The first end of the elastic part (4) is hooked to the connecting hook (12).

12. The door suspension structure according to claim 2, characterized in that, The switch door (200) includes a door body (210) and a door end cover (220) disposed above the door body (210). A strip-shaped mounting groove (2201) extending along the width direction of the switch door (200) is provided on the side of the door end cover (220) near the opening (110). The door body connecting part (2) and the winding part (3) are spaced apart at both ends of the strip-shaped mounting groove (2201). The door body elastic section (42) is located in the strip-shaped mounting groove (2201).

13. A box-type device, characterized in that, The device includes a housing (100), a switch door (200), and a door suspension structure as described in any one of claims 1 to 12, wherein the switch door (200) is movably disposed at the opening (110) of the housing (100), and the door suspension structure is connected to both the housing (100) and the switch door (200).

14. A refrigerator, characterized in that, The device includes a housing (100), a switch door (200), and a door suspension structure as described in any one of claims 1 to 12, wherein the switch door (200) is movably disposed at the opening (110) of the housing (100), and the door suspension structure is connected to both the housing (100) and the switch door (200).

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