Refrigerator hinge capable of controlling door opening angle

Abstract

The refrigerator hinge capable of controlling the door opening angle comprises a box body connecting piece and a door body connecting piece which are rotationally connected through a hinge shaft, a linear driving mechanism is fixedly arranged on the box body connecting piece, the output end of the linear driving mechanism is fixedly connected with the door body connecting piece, and the output end of the linear driving mechanism is fixedly connected with the door body connecting piece. The connecting position of the output end of the linear driving mechanism and the door body connecting piece and the hinge shaft are arranged in a staggered mode, and the linear driving mechanism is used for locking the door body connecting piece and driving the door body connecting piece to rotate around the hinge shaft. Through accurate control of the linear driving mechanism, a user can easily set and maintain the opening angle of the refrigerator door, and the requirements in different use scenes are met. Accurate adjustment can be achieved whether small-angle opening for fast object taking is needed or large-angle opening for comprehensively displaying internal objects is needed.

Description

Technical Field

[0001] The utility model relates to the field of refrigerator hinges, in particular to a refrigerator hinge capable of controlling a door opening angle. Background Art

[0002] Smart refrigerators, a product that combines traditional refrigerators with modern technology, are gradually demonstrating their unique value in various fields. Smart refrigerators, also known as data cabinets or smart freezers, not only offer the refrigeration and freezing functions of traditional refrigerators but also utilize intelligent technology to improve management efficiency and user experience. The opening and closing method of the refrigerator door is also a key component of smart refrigerators. Doors with automatic sensor opening and closing can provide a better user experience. Existing refrigerator doors, which mostly require manual opening and closing by the user, are not very intelligent and still require improvement in user experience. Utility Model Content

[0003] In view of this, the present invention provides a refrigerator hinge capable of controlling the door opening angle in order to solve the above technical problems.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A refrigerator hinge with controllable door opening angle comprises a box connecting member and a door connecting member rotatably connected via a hinge shaft, a linear drive mechanism is fixedly provided on the box connecting member, an output end of the linear drive mechanism is fixedly connected to the door connecting member, and a connection between the output end of the linear drive mechanism and the door connecting member is staggered with the hinge shaft, and the linear drive mechanism is used to lock the door connecting member and to drive the door connecting member to rotate around the hinge shaft.

[0006] In the above technical solution, through the precise control of the linear drive mechanism, users can easily set and maintain the opening angle of the freezer door to meet the needs of different usage scenarios. Whether it is a small angle opening for quick access to items or a large angle opening for full display of internal items, precise adjustment can be achieved. Precise control of the door opening angle helps reduce the loss of cold air inside the freezer. Especially when the freezer door is opened frequently, a small angle opening can quickly complete the retrieval action and reduce the entry of hot air from the outside into the freezer, thereby maintaining a stable internal temperature, improving energy efficiency and extending the shelf life of food.

[0007] Furthermore, the linear drive mechanism design allows for smoother opening and closing of the door, reducing the risk of wobble or sudden closure associated with traditional hinges. Furthermore, the linear drive mechanism's locking function ensures the door remains secure at a specific angle, preventing accidental opening and enhancing user safety.

[0008] Furthermore, the linear drive mechanism is an electric push rod or a cylinder.

[0009] In this technical solution, both the electric actuator and the pneumatic cylinder efficiently convert input energy into linear motion, directly driving the door connector to rotate around the hinge axis. This efficient energy conversion mechanism ensures quick response and smooth operation of the freezer door, reducing energy waste.

[0010] Furthermore, the box body connecting member includes a first connecting plate and two first side panels arranged on opposite sides of the first connecting plate. The first connecting plate and the two first side panels are an integral bent structure. The linear drive mechanism is fixed on the first connecting plate, and the door body connecting member is located between the two first side panels.

[0011] In this technical solution, by designing the first connecting plate and the two first side panels as an integrally bent structure, not only does it simplify the manufacturing process, but it also significantly improves the overall structural strength and stability of the box connector. The two first side panels cleverly enclose the linear drive mechanism, providing a stable support environment for the door connector and protecting it from external interference and damage.

[0012] Furthermore, a first cover plate is provided on the box connecting member, and the first cover plate is connected to the two first side plates.

[0013] In the above technical solution, after the first cover plate is connected to the two first side plates, a relatively closed space is formed, which effectively prevents dust, water vapor or other impurities from entering the area where the linear drive mechanism is located. It not only protects the linear drive mechanism from erosion by the external environment, but also extends its service life and reduces the risk of failure caused by pollution.

[0014] Furthermore, the door body connecting member includes a second connecting plate, two second side plates arranged on opposite sides of the second connecting plate, and a bottom plate connected between the two second side plates. The bottom plate and the second connecting plate are perpendicular to each other, and the output end of the linear drive mechanism is connected to the bottom plate.

[0015] In the above technical solution, by combining the second connecting plate, two second side plates, and the bottom plate into an integral structure, the door connector can achieve greater structural stability and load-bearing capacity when bearing the weight of the refrigerator door and the various forces during opening and closing. Furthermore, the connection relationship between the various components is clear, which helps ensure the precise installation of the door connector and the cabinet connector.

[0016] Furthermore, the second connecting plate, the bottom plate and the two second side plates are an integrally formed structure.

[0017] In this technical solution, the one-piece structure eliminates joints and connection points between components, making the entire door connector a solid whole, thereby improving its strength. This also simplifies the manufacturing process, reducing the number of separate manufacturing and assembly steps, thereby reducing production costs and improving production efficiency.

[0018] Furthermore, the two second side panels are located between the two first side panels and are respectively close to the two first side panels.

[0019] In the above technical solution, the positional relationship between the two first side panels and the two second side panels makes the entire hinge structure more compact in the transverse direction, which can effectively improve the stability of the door connecting member when rotating relative to the box connecting member.

[0020] Furthermore, a second cover plate is provided on the door body connecting member, and the second cover plate is connected to the two second side plates.

[0021] In the above technical solution, the second cover plate provides an additional dustproof and protective barrier for key components inside the door body connector, such as the linear drive mechanism, which helps prevent dust, water vapor or other impurities from entering the interior, reducing the risk of failure due to contamination, and extending the service life of the components.

[0022] Furthermore, the box body connecting piece is provided with a plurality of first mounting holes, and the door body connecting piece is provided with a plurality of second mounting holes.

[0023] In the above technical solution, the design of the first mounting hole facilitates fixing the box connector on the refrigerator box, and the design of the second mounting hole facilitates fixing the door connector on the refrigerator door. At the same time, it allows the installer to select the most suitable installation position and angle according to the specific size, structure and installation environment of the refrigerator, ensuring the stability and reliability of the hinge connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is one of the internal structure diagrams of an embodiment.

[0025] Figure 2 This is the second schematic diagram of the internal structure of an embodiment.

[0026] Figure 3 It is a schematic diagram of the overall structure of an embodiment.

[0027] Figure markings: 1-box connecting piece; 11-first connecting plate; 111-first mounting hole; 12-first side plate; 2-door connecting piece; 21-second connecting plate; 211-second mounting hole; 22-second side plate; 23-bottom plate; 3-hinge shaft; 4-linear drive mechanism; 5-first cover plate; 6-second cover plate. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0029] Please refer to Figure 1-Figure 3 , a preferred embodiment of the present utility model is as follows.

[0030] A refrigerator hinge with controllable door opening angle includes a box connector 1 and a door connector 2 rotatably connected via a hinge shaft 3. A linear drive mechanism 4 is fixedly provided on the box connector 1. The output end of the linear drive mechanism 4 is fixedly connected to the door connector 2, and the connection between the output end of the linear drive mechanism 4 and the door connector 2 is staggered with the hinge shaft 3. The linear drive mechanism 4 is used to lock the door connector 2 and to drive the door connector 2 to rotate around the hinge shaft 3.

[0031] Through precise control of the linear drive mechanism 4, this embodiment allows users to easily set and maintain the door's opening angle to meet the needs of various usage scenarios. Whether opening the door at a narrow angle for quick access or at a wide angle to fully display the contents, precise adjustment is possible. Precise control of the door opening angle helps reduce the loss of cold air inside the freezer, especially when the door is frequently opened. A narrow opening angle allows for quick access, reduces the ingress of hot air from the outside, and thus maintains a stable internal temperature, improving energy efficiency and extending the shelf life of food.

[0032] Furthermore, the design of the linear drive mechanism 4 allows for smoother opening and closing of the door, reducing the risk of wobble or sudden closure associated with traditional hinge structures. Furthermore, the locking function of the linear drive mechanism 4 ensures that the freezer door remains secure at a specific angle, preventing accidental opening and improving user safety.

[0033] Specifically, the linear drive mechanism 4 in this embodiment is an electric push rod or a pneumatic cylinder. These two options provide different power source options for the linear drive mechanism 4. Electric push rods are powered by electricity and are suitable for environments with a stable power supply, offering advantages such as fast response, precise control, and low noise. Pneumatic cylinders, on the other hand, utilize compressed air or hydraulic pressure as their power source, making them particularly suitable for applications requiring explosion-proof and waterproof properties, or where electricity is difficult to obtain. They offer a simple structure and high durability.

[0034] Both the electric push rod and the pneumatic cylinder can efficiently convert the input energy into linear motion, thereby directly driving the door connector 2 to rotate around the hinge axis 3. This efficient energy conversion mechanism ensures the quick response and smooth operation of the refrigerator door, reducing energy waste.

[0035] In this embodiment, the box connector 1 includes a first connecting plate 11 and two first side plates 12 provided on opposite sides of the first connecting plate 11. The first connecting plate 11 and the two first side plates 12 are an integrally bent structure. The linear drive mechanism 4 is fixed to the first connecting plate 11, and the door connector 2 is located between the two first side plates 12. The box connector 1 has an overall "U"-shaped structure.

[0036] By designing the first connecting plate 11 and the two first side panels 12 as an integrally bent structure, not only does the manufacturing process become simpler, but the overall structural strength and stability of the box connector 1 are significantly improved. The two first side panels 12 cleverly enclose the linear drive mechanism 4, providing a stable support environment for the door connector 2 and protecting the linear drive mechanism 4 from external interference and damage.

[0037] The box connector 1 of this embodiment also includes a first cover plate 5, which is connected to the two first side panels 12. The first cover plate 5 is a detachable structure. When connected to the two first side panels 12, the first cover plate 5 forms a relatively enclosed space, effectively preventing dust, moisture, and other impurities from entering the area where the linear drive mechanism 4 is located. This not only protects the linear drive mechanism 4 from environmental corrosion, but also extends its service life and reduces the risk of failure due to contamination.

[0038] In this embodiment, the door connecting member 2 includes a second connecting plate 21, two second side plates 22 provided on opposite sides of the second connecting plate 21, and a bottom plate 23 connected between the two second side plates 22. The bottom plate 23 and the second connecting plate 21 are perpendicular to each other, and the output end of the linear drive mechanism 4 is connected to the bottom plate 23. The second connecting plate 21, the bottom plate 23, and the two second side plates 22 are an integrally formed structure.

[0039] By combining the second connecting plate 21, the two second side panels 22, and the bottom panel 23 into a single integral structure, the door connector 2 achieves greater structural stability and load-bearing capacity when bearing the weight of the refrigerator door and the various forces during opening and closing. Furthermore, the clear connection relationship between the various components helps ensure precise installation between the door connector 2 and the cabinet connector 1. Furthermore, the one-piece molded structure eliminates seams and connection points between components, making the entire door connector 2 a solid whole, thereby increasing its strength. This also simplifies the manufacturing process, reducing the number of separate manufacturing and assembly steps, thereby reducing production costs and improving production efficiency.

[0040] In this embodiment, the two second side panels 22 are located between the two first side panels 12 and are respectively close to the two first side panels 12. The hinge shaft 3 is used to connect the two first side panels 12 and the two second side panels 22. The output end of the linear drive mechanism 4 is fixed to the bottom plate 23 and has a certain offset distance from the hinge shaft 3. This allows the door body connector 2 to rotate around the hinge shaft 3 while pushing the bottom plate 23. In addition, the positional relationship between the two first side panels 12 and the two second side panels 22 makes the entire hinge structure more compact in the lateral direction, which can effectively improve the stability of the door body connector 2 when it rotates relative to the box body connector 1.

[0041] In this embodiment, the door connector 2 is further provided with a second cover plate 6, which is connected to the two second side panels 22. The second cover plate 6 is a detachable structure. The second cover plate 6 provides an additional dustproof and protective barrier for key components within the door connector 2, such as the linear drive mechanism 4, helping to prevent dust, moisture, or other impurities from entering the interior, reducing the risk of failure due to contamination and extending the service life of the components.

[0042] In this embodiment, the cabinet connector 1 is provided with a plurality of first mounting holes 111, and the door connector 2 is provided with a plurality of second mounting holes 211. The first mounting holes 111 are located on the first connecting plate 11, and the second mounting holes 211 are located on the second connecting plate 21. The design of the first mounting holes 111 facilitates securing the cabinet connector 1 to the refrigerator cabinet, while the design of the second mounting holes 211 facilitates securing the door connector 2 to the refrigerator door. This also allows the installer to select the most appropriate mounting position and angle based on the specific size, structure, and installation environment of the refrigerator, ensuring the stability and reliability of the hinge connection.

[0043] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0045] Although the present invention has been described with reference to the above specific embodiments, it is apparent that those skilled in the art can make many substitutions, modifications, and variations based on the above. Therefore, all such substitutions, modifications, and variations are intended to fall within the spirit and scope of the appended claims.

Claims

1. A refrigerator hinge capable of controlling the door opening angle, comprising a cabinet connector and a door connector rotatably connected via a hinge shaft, characterized in that: A linear drive mechanism is fixedly provided on the box body connecting member, the output end of the linear drive mechanism is fixedly connected to the door body connecting member, and the connection between the output end of the linear drive mechanism and the door body connecting member is staggered with the hinge shaft, and the linear drive mechanism is used to lock the door body connecting member and drive the door body connecting member to rotate around the hinge shaft.

2. The refrigerator hinge with controllable door opening angle according to claim 1, characterized in that: The linear drive mechanism is an electric push rod or a cylinder.

3. The refrigerator hinge with controllable door opening angle according to claim 1, characterized in that: The box body connecting member includes a first connecting plate and two first side panels arranged on opposite sides of the first connecting plate. The first connecting plate and the two first side panels are an integrally bent structure. The linear drive mechanism is fixed on the first connecting plate, and the door body connecting member is located between the two first side panels.

4. The refrigerator hinge with controllable door opening angle according to claim 3, characterized in that: The box body connecting piece is further provided with a first cover plate, and the first cover plate is connected to the two first side plates.

5. The refrigerator hinge with controllable door opening angle according to claim 3, characterized in that: The door body connecting member includes a second connecting plate, two second side plates arranged on opposite sides of the second connecting plate, and a bottom plate connected between the two second side plates. The bottom plate and the second connecting plate are perpendicular to each other, and the output end of the linear drive mechanism is connected to the bottom plate.

6. The refrigerator hinge with controllable door opening angle according to claim 5, characterized in that: The second connecting plate, the bottom plate and the two second side plates are an integrally formed structure.

7. The refrigerator hinge with controllable door opening angle according to claim 5, characterized in that: The two second side panels are located between the two first side panels and are respectively close to the two first side panels.

8. The refrigerator hinge with controllable door opening angle according to claim 5, characterized in that: The door body connecting member is further provided with a second cover plate, and the second cover plate is connected to the two second side plates.

9. The refrigerator hinge with controllable door opening angle according to any one of claims 1 to 8, characterized in that: The box body connecting piece is provided with a plurality of first mounting holes, and the door body connecting piece is provided with a plurality of second mounting holes.

Images